# HG changeset patch # User renatofilho # Date 1163101527 0 # Node ID 761a8bbe4278275fd18099e6d317fc96ddf60beb # Parent ce823be21819c3a82eb6a71a5a4519e0964b52c9 [svn r76] typefind copyed from gstreamer cvs diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/Makefile.am --- a/gst-plugins-nuvdemux/Makefile.am Thu Nov 09 19:12:55 2006 +0000 +++ b/gst-plugins-nuvdemux/Makefile.am Thu Nov 09 19:45:27 2006 +0000 @@ -1,4 +1,4 @@ ACLOCAL_AMFLAGS = -I m4 -SUBDIRS = src +SUBDIRS = nuvdemux typefind DIST_SUBDIRS = m4 diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/configure.ac --- a/gst-plugins-nuvdemux/configure.ac Thu Nov 09 19:12:55 2006 +0000 +++ b/gst-plugins-nuvdemux/configure.ac Thu Nov 09 19:45:27 2006 +0000 @@ -123,7 +123,8 @@ AC_OUTPUT( \ Makefile \ - src/Makefile \ + nuvdemux/Makefile \ + typefind/Makefile \ m4/Makefile ) diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/debian/rules --- a/gst-plugins-nuvdemux/debian/rules Thu Nov 09 19:12:55 2006 +0000 +++ b/gst-plugins-nuvdemux/debian/rules Thu Nov 09 19:45:27 2006 +0000 @@ -8,4 +8,5 @@ binary-install/gstreamer0.10-indt-nuvdemux:: rm -f debian/gstreamer0.10-indt-nuvdemux/usr/lib/gstreamer-0.10/libgstnuvdemux.la rm -f debian/gstreamer0.10-indt-nuvdemux/usr/lib/gstreamer-0.10/libgstnuvdemux.a - + rm -f debian/gstreamer0.10-indt-nuvdemux/usr/lib/gstreamer-0.10/libgsttypefindfunctions.la + rm -f debian/gstreamer0.10-indt-nuvdemux/usr/lib/gstreamer-0.10/libgsttypefindfunctions.a diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/nuvdemux/Makefile.am --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst-plugins-nuvdemux/nuvdemux/Makefile.am Thu Nov 09 19:45:27 2006 +0000 @@ -0,0 +1,20 @@ +plugin_LTLIBRARIES = libgstnuvdemux.la + +libgstnuvdemux_la_SOURCES = \ + gstnuvdemux.c + +libgstnuvdemux_la_CFLAGS = \ + $(GST_CFLAGS) \ + $(GST_PLUGINS_BASE_CFLAGS) + +libgstnuvdemux_la_LIBADD = \ + $(GST_LIBS_LIBS) + +libgstnuvdemux_la_LDFLAGS = \ + $(GST_PLUGIN_LDFLAGS) \ + $(GST_BASE_LIBS) \ + $(GST_PLUGINS_BASE_LIBS) + +noinst_HEADERS = \ + gstnuvdemux.h + diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/nuvdemux/gstnuvdemux.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst-plugins-nuvdemux/nuvdemux/gstnuvdemux.c Thu Nov 09 19:45:27 2006 +0000 @@ -0,0 +1,1137 @@ +/* GStreamer + * Copyright (C) <2006> Renato Araujo Oliveira Filho + * Rosfran Borges + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ +/* Element-Checklist-Version: 5 */ + +/** + * SECTION:element-nuvdemux + * + * + * + * Demuxes an .nuv file into raw or compressed audio and/or video streams. + * + * + * This element currently only supports pull-based scheduling. + * + * Example launch line + * + * + * gst-launch filesrc test.nuv ! nuvdemux name=demux demux.audio_00 ! decodebin ! audioconvert ! audioresample ! autoaudiosink demux.video_00 ! queue ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink + * + * Play (parse and decode) an .nuv file and try to output it to + * an automatically detected soundcard and videosink. If the NUV file contains + * compressed audio or video data, this will only work if you have the + * right decoder elements/plugins installed. + * + * + * + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include +#include +#include +#include + +#include "glib/gi18n.h" +#include "gstnuvdemux.h" + +GST_DEBUG_CATEGORY_STATIC (nuvdemux_debug); +#define GST_CAT_DEFAULT nuvdemux_debug + + +#define GST_FLOW_ERROR_NO_DATA -101 + +GST_DEBUG_CATEGORY_EXTERN (GST_CAT_EVENT); + +static const GstElementDetails gst_nuv_demux_details = +GST_ELEMENT_DETAILS ("Nuv demuxer", + "Codec/Demuxer", + "Demultiplex a .nuv file into audio and video", + "Renato Araujo Oliveira Filho ," + "Rosfran Borges "); + +static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("video/x-nuv")); + +static GstStaticPadTemplate audio_src_template = +GST_STATIC_PAD_TEMPLATE ("audio_src", + GST_PAD_SRC, + GST_PAD_SOMETIMES, + GST_STATIC_CAPS_ANY); + +static GstStaticPadTemplate video_src_template = +GST_STATIC_PAD_TEMPLATE ("video_src", + GST_PAD_SRC, + GST_PAD_SOMETIMES, + GST_STATIC_CAPS_ANY); + +/* NUV Demux indexes init/dispose callers */ +static void gst_nuv_demux_index_init( nuv_demux_index **p_idx ); +static void gst_nuv_demux_index_clean( nuv_demux_index **p_idx ); + +/* NUV Demux indexes manipulation functions */ +//static gint64 gst_nuv_demux_index_find_offset( GstNuvDemux *nuv, gint64 i_offset ); +static void gst_nuv_demux_index_append( GstNuvDemux *nuv, gint64 i_time, gint64 i_offset ); +static gint64 gst_nuv_demux_index_convert_time( GstNuvDemux *nuv, gint64 i_time ); + +/* NUV Demux plug-in time-line functions */ +static void gst_nuv_demux_finalize (GObject * object); +static GstStateChangeReturn gst_nuv_demux_change_state (GstElement * element, + GstStateChange transition); +static void gst_nuv_demux_loop (GstPad * pad); +static GstFlowReturn gst_nuv_demux_chain (GstPad * pad, GstBuffer * buf); +static GstFlowReturn gst_nuv_demux_play (GstPad * pad); +static gboolean gst_nuv_demux_sink_activate_pull (GstPad * sinkpad, + gboolean active); +static gboolean gst_nuv_demux_sink_activate (GstPad * sinkpad); +static GstFlowReturn gst_nuv_demux_read_bytes (GstNuvDemux * nuv, guint64 size, + gboolean move, GstBuffer ** buffer); +static void gst_nuv_demux_reset (GstNuvDemux * nuv); +static gboolean gst_nuv_demux_handle_sink_event (GstPad * sinkpad, + GstEvent * event); +static gboolean gst_nuv_demux_handle_audio_src_event (GstPad * sinkpad, + GstEvent * event); +static gboolean gst_nuv_demux_handle_video_src_event (GstPad * sinkpad, + GstEvent * event); +static void gst_nuv_demux_destoy_src_pad (GstNuvDemux * nuv); +static void gst_nuv_demux_send_eos (GstNuvDemux * nuv); + +/* GObject methods */ +GST_BOILERPLATE (GstNuvDemux, gst_nuv_demux, GstElement, GST_TYPE_ELEMENT); + +#if G_BYTE_ORDER == G_BIG_ENDIAN +static inline gdouble +_gdouble_swap_le_be (gdouble * d) +{ + union + { + guint64 i; + gdouble d; + } u; + + u.d = *d; + u.i = GUINT64_SWAP_LE_BE (u.i); + return u.d; +} + +#define READ_DOUBLE_FROM_LE(d) (_gdouble_swap_le_be((gdouble* ) d)) +#else /* G_BYTE_ORDER != G_BIG_ENDIAN */ +#define READ_DOUBLE_FROM_LE(d) *((gdouble* ) (d)) +#endif /* G_BYTE_ORDER != G_BIG_ENDIAN */ + +static void +gst_nuv_demux_base_init (gpointer klass) +{ + GstElementClass *element_class = GST_ELEMENT_CLASS (klass); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&audio_src_template)); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&video_src_template)); + + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&sink_template)); + gst_element_class_set_details (element_class, &gst_nuv_demux_details); +} + +static void +gst_nuv_demux_class_init (GstNuvDemuxClass * klass) +{ + GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); + GObjectClass *gobject_class = (GObjectClass *) klass; + + GST_DEBUG_CATEGORY_INIT (nuvdemux_debug, "nuvdemux", + 0, "Demuxer for NUV streams"); + + parent_class = g_type_class_peek_parent (klass); + + gobject_class->finalize = gst_nuv_demux_finalize; + gstelement_class->change_state = gst_nuv_demux_change_state; +} + +static void +gst_nuv_demux_init (GstNuvDemux * nuv, GstNuvDemuxClass * nuv_class) +{ + nuv->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink"); + + gst_pad_set_activate_function (nuv->sinkpad, gst_nuv_demux_sink_activate); + + gst_pad_set_activatepull_function (nuv->sinkpad, + gst_nuv_demux_sink_activate_pull); + + gst_pad_set_chain_function (nuv->sinkpad, + GST_DEBUG_FUNCPTR (gst_nuv_demux_chain)); + + gst_pad_set_event_function (nuv->sinkpad, gst_nuv_demux_handle_sink_event); + + gst_element_add_pad (GST_ELEMENT (nuv), nuv->sinkpad); + + gst_nuv_demux_index_init( &nuv->index_entries ); + + nuv->adapter = NULL; + nuv->mpeg_buffer = NULL; + nuv->h = NULL; + nuv->eh = NULL; + nuv->fh = NULL; + gst_nuv_demux_reset (nuv); +} + +static void +gst_nuv_demux_finalize (GObject * object) +{ + GstNuvDemux *nuv = GST_NUV_DEMUX (object); + + if (nuv->mpeg_buffer != NULL) { + gst_buffer_unref (nuv->mpeg_buffer); + } + + if ( nuv->index_entries != NULL ) { + gst_nuv_demux_index_clean( &nuv->index_entries ); + nuv->index_entries = NULL; + } + + gst_nuv_demux_destoy_src_pad (nuv); + gst_nuv_demux_reset (nuv); + if (nuv->adapter != NULL) { + gst_object_unref (nuv->adapter); + } + G_OBJECT_CLASS (parent_class)->finalize (object); +} + + +/***************************************************************************** + * Indexes (timecode offset conversion) functions + *****************************************************************************/ + +static void +gst_nuv_demux_index_init( nuv_demux_index **p_idx ) +{ + *p_idx = g_new0( nuv_demux_index, 1 ); + (*p_idx)->i_idx = 0; + (*p_idx)->i_idx_max = 0; +} + +static void +gst_nuv_demux_index_clean( nuv_demux_index **p_idx ) +{ + if ( *p_idx != NULL ) { + g_free( *p_idx ); + *p_idx = NULL; + } + +} + +static void +gst_nuv_demux_index_append( GstNuvDemux *nuv, gint64 i_time, gint64 i_offset ) +{ + nuv_demux_index *p_idx = nuv->index_entries; + + //if ( p_idx == NULL ) + // return; + + /* Be sure to append new entry (we don't insert point) */ + if( p_idx != NULL && p_idx->i_idx > 0 && p_idx->idx[p_idx->i_idx-1].i_time >= i_time ) + return; + + /* */ + if( p_idx->i_idx >= p_idx->i_idx_max ) + { + if( p_idx->i_idx >= DEMUX_INDEX_SIZE_MAX ) + { + /* Avoid too big index */ + const gint64 i_length = p_idx->idx[p_idx->i_idx-1].i_time - + p_idx->idx[0].i_time; + const gint i_count = DEMUX_INDEX_SIZE_MAX/2; + gint i, j; + + /* We try to reduce the resolution of the index by a factor 2 */ + for( i = 1, j = 1; i < p_idx->i_idx; i++ ) + { + if( p_idx->idx[i].i_time < j * i_length / i_count ) + continue; + + p_idx->idx[j++] = p_idx->idx[i]; + } + p_idx->i_idx = j; + + if( p_idx->i_idx > 3 * DEMUX_INDEX_SIZE_MAX / 4 ) + { + /* We haven't created enough space + * (This method won't create a good index but work for sure) */ + for( i = 0; i < p_idx->i_idx/2; i++ ) + p_idx->idx[i] = p_idx->idx[2*i]; + p_idx->i_idx /= 2; + } + } + else + { + p_idx->i_idx_max += 1000; + } + } + + /* */ + p_idx->idx[p_idx->i_idx].i_time = i_time; + p_idx->idx[p_idx->i_idx].i_offset = i_offset; + + p_idx->i_idx++; +} + +static gint64 +gst_nuv_demux_index_convert_time( GstNuvDemux *nuv, gint64 i_time ) +{ + nuv_demux_index *p_idx = nuv->index_entries; + + g_return_val_if_fail( p_idx != NULL , i_time ); + + gint i_min = 0; + gint i_max = p_idx->i_idx-1; + + /* Empty index */ + if( p_idx->i_idx <= 0 ) + return -1; + + /* Special border case */ + if( i_time <= p_idx->idx[0].i_time ) + return p_idx->idx[0].i_offset; + if( i_time >= p_idx->idx[i_max].i_time ) + return p_idx->idx[i_max].i_offset; + + /* Dicho */ + for( ;; ) + { + gint i_med; + + if( i_max - i_min <= 1 ) + break; + + i_med = (i_min+i_max)/2; + if( p_idx->idx[i_med].i_time < i_time ) + i_min = i_med; + else if( p_idx->idx[i_med].i_time > i_time ) + i_max = i_med; + else + return p_idx->idx[i_med].i_offset; + } + + /* return nearest in time */ + if( i_time - p_idx->idx[i_min].i_time < p_idx->idx[i_max].i_time - i_time ) + return p_idx->idx[i_min].i_offset; + else + return p_idx->idx[i_max].i_offset; +} + +/***************************************************************************** + * Utils functions + *****************************************************************************/ + +static gboolean +gst_nuv_demux_handle_sink_event (GstPad * sinkpad, GstEvent * event) +{ + gboolean res = FALSE; + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_NEWSEGMENT: + res = TRUE; + break; + default: + return gst_pad_event_default (sinkpad, event); + break; + } + + gst_event_unref (event); + return res; +} + +/* HeaderLoad: + */ +static GstFlowReturn +gst_nuv_demux_header_load (GstNuvDemux * nuv, nuv_header ** h_ret) +{ + GstBuffer *buffer = NULL; + GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 72, TRUE, &buffer); + + if (res != GST_FLOW_OK) + return res; + + nuv_header *h = g_new0 (nuv_header, 1); + + memcpy (h->id, buffer->data, 12); + memcpy (h->version, buffer->data + 12, 5); + h->i_width = GST_READ_UINT32_LE (&buffer->data[20]); + h->i_height = GST_READ_UINT32_LE (&buffer->data[24]); + h->i_width_desired = GST_READ_UINT32_LE (&buffer->data[28]); + h->i_height_desired = GST_READ_UINT32_LE (&buffer->data[32]); + h->i_mode = buffer->data[36]; + h->d_aspect = READ_DOUBLE_FROM_LE (&buffer->data[40]); + h->d_fps = READ_DOUBLE_FROM_LE (&buffer->data[48]); + h->i_video_blocks = GST_READ_UINT32_LE (&buffer->data[56]); + h->i_audio_blocks = GST_READ_UINT32_LE (&buffer->data[60]); + h->i_text_blocks = GST_READ_UINT32_LE (&buffer->data[64]); + h->i_keyframe_distance = GST_READ_UINT32_LE (&buffer->data[68]); + + GST_DEBUG_OBJECT (nuv, + "nuv: h=%s v=%s %dx%d a=%f fps=%f v=%d a=%d t=%d kfd=%d", h->id, + h->version, h->i_width, h->i_height, h->d_aspect, h->d_fps, + h->i_video_blocks, h->i_audio_blocks, h->i_text_blocks, + h->i_keyframe_distance); + + *h_ret = h; + gst_buffer_unref (buffer); + return res; +} + +static GstFlowReturn +gst_nuv_demux_stream_header_data (GstNuvDemux * nuv) +{ + GstFlowReturn res = gst_nuv_demux_header_load (nuv, &nuv->h); + + if (res == GST_FLOW_OK) + nuv->state = GST_NUV_DEMUX_EXTRA_DATA; + return res; +} + +/* + * Read NUV file tag + */ +static GstFlowReturn +gst_nuv_demux_stream_file_header (GstNuvDemux * nuv) +{ + GstFlowReturn res = GST_FLOW_OK; + GstBuffer *file_header = NULL; + + res = gst_nuv_demux_read_bytes (nuv, 12, FALSE, &file_header); + if (res != GST_FLOW_OK) { + return res; + } else { + if (strncmp ((gchar *) file_header->data, "MythTVVideo", 11) || + strncmp ((gchar *) file_header->data, "NuppelVideo", 11)) { + nuv->state = GST_NUV_DEMUX_HEADER_DATA; + } else { + GST_DEBUG_OBJECT (nuv, "error parsing file header"); + nuv->state = GST_NUV_DEMUX_INVALID_DATA; + res = GST_FLOW_ERROR; + } + } + if (file_header != NULL) { + gst_buffer_unref (file_header); + } + return res; +} + +/* FrameHeaderLoad: + */ +static GstFlowReturn +gst_nuv_demux_frame_header_load (GstNuvDemux * nuv, nuv_frame_header ** h_ret) +{ + unsigned char *data; + nuv_frame_header *h; + GstBuffer *buf = NULL; + + GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 12, TRUE, &buf); + + if (res != GST_FLOW_OK) { + if (buf != NULL) { + gst_buffer_unref (buf); + } + return res; + } + + h = g_new0 (nuv_frame_header, 1); + data = buf->data; + + h->i_type = data[0]; + h->i_compression = data[1]; + h->i_keyframe = data[2]; + h->i_filters = data[3]; + + h->i_timecode = GST_READ_UINT32_LE (&data[4]); + + + h->i_length = GST_READ_UINT32_LE (&data[8]); + GST_DEBUG_OBJECT (nuv, "frame hdr: t=%c c=%c k=%d f=0x%x timecode=%d l=%d", + h->i_type, + h->i_compression ? h->i_compression : ' ', + h->i_keyframe ? h->i_keyframe : ' ', + h->i_filters, h->i_timecode, h->i_length); + + *h_ret = h; + gst_buffer_unref (buf); + return GST_FLOW_OK; +} + +static GstFlowReturn +gst_nuv_demux_extended_header_load (GstNuvDemux * nuv, + nuv_extended_header ** h_ret) +{ + unsigned char *data; + GstBuffer *buff = NULL; + nuv_extended_header *h; + + + GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 512, TRUE, &buff); + + if (res != GST_FLOW_OK) { + if (buff != NULL) { + gst_buffer_unref (buff); + } + return res; + } + + h = g_new0 (nuv_extended_header, 1); + data = buff->data; + h->i_version = GST_READ_UINT32_LE (&data[0]); + h->i_video_fcc = GST_MAKE_FOURCC (data[4], data[5], data[6], data[7]); + h->i_audio_fcc = GST_MAKE_FOURCC (data[8], data[9], data[10], data[11]); + h->i_audio_sample_rate = GST_READ_UINT32_LE (&data[12]); + h->i_audio_bits_per_sample = GST_READ_UINT32_LE (&data[16]); + h->i_audio_channels = GST_READ_UINT32_LE (&data[20]); + h->i_audio_compression_ratio = GST_READ_UINT32_LE (&data[24]); + h->i_audio_quality = GST_READ_UINT32_LE (&data[28]); + h->i_rtjpeg_quality = GST_READ_UINT32_LE (&data[32]); + h->i_rtjpeg_luma_filter = GST_READ_UINT32_LE (&data[36]); + h->i_rtjpeg_chroma_filter = GST_READ_UINT32_LE (&data[40]); + h->i_lavc_bitrate = GST_READ_UINT32_LE (&data[44]); + h->i_lavc_qmin = GST_READ_UINT32_LE (&data[48]); + h->i_lavc_qmin = GST_READ_UINT32_LE (&data[52]); + h->i_lavc_maxqdiff = GST_READ_UINT32_LE (&data[56]); + h->i_seekable_offset = GST_READ_UINT64_LE (&data[60]); + h->i_keyframe_adjust_offset = GST_READ_UINT64_LE (&data[68]); + + GST_DEBUG_OBJECT (nuv, + "ex hdr: v=%d vffc=%4.4s afcc=%4.4s %dHz %dbits ach=%d acr=%d aq=%d" + "rtjpeg q=%d lf=%d lc=%d lavc br=%d qmin=%d qmax=%d maxqdiff=%d seekableoff=%lld keyfao=%lld", + h->i_version, (gchar *) & h->i_video_fcc, (gchar *) & h->i_audio_fcc, + h->i_audio_sample_rate, h->i_audio_bits_per_sample, h->i_audio_channels, + h->i_audio_compression_ratio, h->i_audio_quality, h->i_rtjpeg_quality, + h->i_rtjpeg_luma_filter, h->i_rtjpeg_chroma_filter, h->i_lavc_bitrate, + h->i_lavc_qmin, h->i_lavc_qmax, h->i_lavc_maxqdiff, h->i_seekable_offset, + h->i_keyframe_adjust_offset); + + *h_ret = h; + gst_buffer_unref (buff); + return res; +} + +static gboolean +gst_nuv_demux_handle_audio_src_event (GstPad * pad, GstEvent * event) +{ + gst_event_unref (event); + return FALSE; +} + +static gboolean +gst_nuv_demux_handle_video_src_event (GstPad * pad, GstEvent * event) +{ + gst_event_unref (event); + return FALSE; +} + +static void +gst_nuv_demux_create_pads (GstNuvDemux * nuv) +{ + if (nuv->h->i_video_blocks != 0) { + GstCaps *video_caps = NULL; + + nuv->src_video_pad = + gst_pad_new_from_static_template (&video_src_template, "video_src"); + + video_caps = gst_caps_new_simple ("video/x-divx", + "divxversion", G_TYPE_INT, 4, + "width", G_TYPE_INT, nuv->h->i_width, + "height", G_TYPE_INT, nuv->h->i_height, + "framerate", GST_TYPE_FRACTION, (gint) (nuv->h->d_fps * 1000.0f), 1000, + "pixel-aspect-ratio", GST_TYPE_FRACTION, + (gint) (nuv->h->d_aspect * 1000.0f), 1000, NULL); + + gst_pad_use_fixed_caps (nuv->src_video_pad); + gst_pad_set_caps (nuv->src_video_pad, video_caps); + + gst_pad_set_event_function (nuv->src_video_pad, + gst_nuv_demux_handle_video_src_event); + gst_pad_set_active (nuv->src_video_pad, TRUE); + gst_element_add_pad (GST_ELEMENT (nuv), nuv->src_video_pad); + + gst_caps_unref (video_caps); + } + + if (nuv->h->i_audio_blocks != 0) { + GstCaps *audio_caps = NULL; + + nuv->src_audio_pad = + gst_pad_new_from_static_template (&audio_src_template, "audio_src"); + + audio_caps = gst_caps_new_simple ("audio/mpeg", + "rate", G_TYPE_INT, nuv->eh->i_audio_sample_rate, + "format", GST_TYPE_FOURCC, nuv->eh->i_audio_fcc, + "channels", G_TYPE_INT, nuv->eh->i_audio_channels, + "mpegversion", G_TYPE_INT, nuv->eh->i_version, NULL); + + gst_pad_use_fixed_caps (nuv->src_audio_pad); + gst_pad_set_caps (nuv->src_audio_pad, audio_caps); + + gst_pad_set_event_function (nuv->src_audio_pad, + gst_nuv_demux_handle_audio_src_event); + gst_pad_set_active (nuv->src_audio_pad, TRUE); + gst_element_add_pad (GST_ELEMENT (nuv), nuv->src_audio_pad); + + gst_caps_unref (audio_caps); + } + + gst_element_no_more_pads (GST_ELEMENT (nuv)); +} + +static GstFlowReturn +gst_nuv_demux_read_head_frame (GstNuvDemux * nuv) +{ + GstFlowReturn ret = GST_FLOW_OK; + + ret = gst_nuv_demux_frame_header_load (nuv, &nuv->fh); + if (ret != GST_FLOW_OK) + return ret; + + nuv->state = GST_NUV_DEMUX_MOVI; + return ret; +} + +static GstFlowReturn +gst_nuv_demux_stream_data (GstNuvDemux * nuv) +{ + GstFlowReturn ret = GST_FLOW_OK; + GstBuffer *buf = NULL; + nuv_frame_header *h = nuv->fh; + + gint64 table_timecode = 0; + + if (h->i_type == 'R') + goto done; + + table_timecode = h->i_timecode; + + /* append the frame's header timecode field, and the actual offset */ + if ( h->i_type == 'V' ) + gst_nuv_demux_index_append( nuv, h->i_timecode, nuv->video_offset ); + else if ( h->i_type == 'A' ) + gst_nuv_demux_index_append( nuv, h->i_timecode, nuv->audio_offset ); + + if (h->i_length > 0) { + ret = gst_nuv_demux_read_bytes (nuv, h->i_length, TRUE, &buf); + if (ret != GST_FLOW_OK) + return ret; + + /* search for a valid timecode in the indexes list (find the nearest valid timecode) */ + if ( h->i_timecode < 0 ) { + /* convert this actual timecode to a valid index in the timecode's table */ + gint64 pos = gst_nuv_demux_index_convert_time( nuv, h->i_timecode ); + + /* just get the timecode from the timecode's table */ + table_timecode = nuv->index_entries->idx[pos].i_time * GST_MSECOND; + } else { + table_timecode = h->i_timecode * GST_MSECOND; + } + + GST_BUFFER_TIMESTAMP (buf) = table_timecode; + } + + switch (h->i_type) { + case 'V': + { + if (h->i_length == 0) + break; + + if ( !gst_pad_is_linked( nuv->src_video_pad ) ) + break; + + //GST_PAD_STREAM_LOCK(nuv->src_video_pad); + + GST_BUFFER_SIZE (buf) = h->i_length; + gst_buffer_set_caps (buf, GST_PAD_CAPS (nuv->src_video_pad)); + ret = gst_pad_push (nuv->src_video_pad, buf); + nuv->video_offset += h->i_length; + + //GST_PAD_STREAM_UNLOCK(nuv->src_video_pad); + break; + } + case 'A': + { + if (h->i_length == 0) + break; + + if ( !gst_pad_is_linked( nuv->src_audio_pad ) ) + break; + + //GST_PAD_STREAM_LOCK(nuv->src_audio_pad); + + GST_BUFFER_SIZE (buf) = h->i_length; + gst_buffer_set_caps (buf, GST_PAD_CAPS (nuv->src_audio_pad)); + ret = gst_pad_push (nuv->src_audio_pad, buf); + nuv->audio_offset += h->i_length; + + //GST_PAD_STREAM_UNLOCK(nuv->src_audio_pad); + break; + } + case 'S': + { + switch (h->i_compression) { + case 'V': + if ( !gst_pad_is_linked( nuv->src_video_pad ) ) + break; + + //GST_PAD_STREAM_LOCK(nuv->src_video_pad); + gst_pad_push_event (nuv->src_video_pad, + gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, table_timecode, + GST_CLOCK_TIME_NONE, 0)); + //GST_PAD_STREAM_UNLOCK(nuv->src_video_pad); + break; + case 'A': + if ( !gst_pad_is_linked( nuv->src_audio_pad ) ) + break; + + //GST_PAD_STREAM_LOCK(nuv->src_audio_pad); + gst_pad_push_event (nuv->src_audio_pad, + gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, table_timecode, + GST_CLOCK_TIME_NONE, 0)); + //GST_PAD_STREAM_UNLOCK(nuv->src_audio_pad); + break; + default: + break; + } + } + default: + if (buf != NULL) + gst_buffer_unref (buf); + + break; + } + +done: + nuv->state = GST_NUV_DEMUX_FRAME_HEADER; + g_free (nuv->fh); + nuv->fh = NULL; + return ret; +} + +static GstFlowReturn +gst_nuv_demux_stream_mpeg_data (GstNuvDemux * nuv) +{ + GstFlowReturn ret = GST_FLOW_OK; + + /* ffmpeg extra data */ + ret = + gst_nuv_demux_read_bytes (nuv, nuv->mpeg_data_size, TRUE, + &nuv->mpeg_buffer); + if (ret != GST_FLOW_OK) { + return ret; //GST_FLOW_ERROR; + } + GST_BUFFER_SIZE (nuv->mpeg_buffer) = nuv->mpeg_data_size; + nuv->state = GST_NUV_DEMUX_EXTEND_HEADER; + return ret; +} + +static GstFlowReturn +gst_nuv_demux_stream_extra_data (GstNuvDemux * nuv) +{ + GstFlowReturn ret = GST_FLOW_OK; + + /* Load 'D' */ + nuv_frame_header *h; + + ret = gst_nuv_demux_frame_header_load (nuv, &h); + if (ret != GST_FLOW_OK) + return ret; + + if (h->i_type != 'D') { + g_free (h); + return GST_FLOW_ERROR; + } + + if (h->i_length > 0) { + if (h->i_compression == 'F') { + nuv->state = GST_NUV_DEMUX_MPEG_DATA; + } else { + g_free (h); + return GST_FLOW_ERROR; + } + } else { + nuv->state = GST_NUV_DEMUX_EXTEND_HEADER; + } + + g_free (h); + h = NULL; + return ret; +} + +static GstFlowReturn +gst_nuv_demux_stream_extend_header_data (GstNuvDemux * nuv) +{ + GstFlowReturn ret = GST_FLOW_OK; + + ret = gst_nuv_demux_extended_header_load (nuv, &nuv->eh); + if (ret != GST_FLOW_OK) + return ret; + + gst_nuv_demux_create_pads (nuv); + nuv->state = GST_NUV_DEMUX_FRAME_HEADER; + return ret; +} + +static GstFlowReturn +gst_nuv_demux_stream_extend_header (GstNuvDemux * nuv) +{ + GstBuffer *buf = NULL; + GstFlowReturn res = GST_FLOW_OK; + + res = gst_nuv_demux_read_bytes (nuv, 1, FALSE, &buf); + if (res != GST_FLOW_OK) { + if (buf != NULL) { + gst_buffer_unref (buf); + } + return res; + } + + if (buf->data[0] == 'X') { + gst_buffer_unref (buf); + buf = NULL; + nuv_frame_header *h = NULL; + + res = gst_nuv_demux_frame_header_load (nuv, &h); + if (res != GST_FLOW_OK) + return res; + + if (h->i_length != 512) { + g_free (h); + return GST_FLOW_ERROR; + } + g_free (h); + h = NULL; + nuv->state = GST_NUV_DEMUX_EXTEND_HEADER_DATA; + } else { + nuv->state = GST_NUV_DEMUX_INVALID_DATA; + g_object_unref (buf); + GST_ELEMENT_WARNING (nuv, STREAM, FAILED, + (_("incomplete NUV support")), ("incomplete NUV support")); + return GST_FLOW_ERROR; + } + return res; +} + +static GstFlowReturn +gst_nuv_demux_play (GstPad * pad) +{ + GstFlowReturn res = GST_FLOW_OK; + GstNuvDemux *nuv = GST_NUV_DEMUX (GST_PAD_PARENT (pad)); + + switch (nuv->state) { + case GST_NUV_DEMUX_START: + res = gst_nuv_demux_stream_file_header (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + if (nuv->state != GST_NUV_DEMUX_HEADER_DATA) + break; + + case GST_NUV_DEMUX_HEADER_DATA: + res = gst_nuv_demux_stream_header_data (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + if (nuv->state != GST_NUV_DEMUX_EXTRA_DATA) + break; + + case GST_NUV_DEMUX_EXTRA_DATA: + res = gst_nuv_demux_stream_extra_data (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + if (nuv->state != GST_NUV_DEMUX_MPEG_DATA) + break; + + case GST_NUV_DEMUX_MPEG_DATA: + res = gst_nuv_demux_stream_mpeg_data (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + + if (nuv->state != GST_NUV_DEMUX_EXTEND_HEADER) + break; + + case GST_NUV_DEMUX_EXTEND_HEADER: + res = gst_nuv_demux_stream_extend_header (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + if (nuv->state != GST_NUV_DEMUX_EXTEND_HEADER_DATA) + break; + + case GST_NUV_DEMUX_EXTEND_HEADER_DATA: + res = gst_nuv_demux_stream_extend_header_data (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + + if (nuv->state != GST_NUV_DEMUX_FRAME_HEADER) + break; + + case GST_NUV_DEMUX_FRAME_HEADER: + res = gst_nuv_demux_read_head_frame (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { + goto pause; + } + if (nuv->state != GST_NUV_DEMUX_MOVI) + break; + + case GST_NUV_DEMUX_MOVI: + res = gst_nuv_demux_stream_data (nuv); + if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA) && (res != GST_FLOW_CUSTOM_ERROR)) { + goto pause; + } + break; + case GST_NUV_DEMUX_INVALID_DATA: + goto pause; + break; + default: + g_assert_not_reached (); + } + + GST_DEBUG_OBJECT (nuv, "state: %d res:%s", nuv->state, + gst_flow_get_name (res)); + + return GST_FLOW_OK; + +pause: + GST_LOG_OBJECT (nuv, "pausing task, reason %s", gst_flow_get_name (res)); + gst_pad_pause_task (nuv->sinkpad); + if (GST_FLOW_IS_FATAL (res)) { + GST_ELEMENT_ERROR (nuv, STREAM, FAILED, + (_("Internal data stream error.")), + ("streaming stopped, reason %s", gst_flow_get_name (res))); + + gst_nuv_demux_send_eos (nuv); + } + return res; +} + +static void +gst_nuv_demux_send_eos (GstNuvDemux * nuv) +{ + gst_element_post_message (GST_ELEMENT (nuv), + gst_message_new_segment_done (GST_OBJECT (nuv), GST_FORMAT_TIME, -1)); + + if (nuv->src_video_pad) + gst_pad_push_event (nuv->src_video_pad, gst_event_new_eos ()); + if (nuv->src_audio_pad) + gst_pad_push_event (nuv->src_audio_pad, gst_event_new_eos ()); +} + +static GstFlowReturn +gst_nuv_demux_read_bytes (GstNuvDemux * nuv, guint64 size, gboolean move, + GstBuffer ** buffer) +{ + GstFlowReturn ret = GST_FLOW_OK; + + if (size == 0) { + *buffer = gst_buffer_new (); + return ret; + } + + if (nuv->mode == 0) { + ret = gst_pad_pull_range (nuv->sinkpad, nuv->offset, size, buffer); + if (ret == GST_FLOW_OK) { + if (move) { + nuv->offset += size; + } + /* got eos */ + } else if (ret == GST_FLOW_UNEXPECTED) { + gst_nuv_demux_send_eos (nuv); + return GST_FLOW_WRONG_STATE; + } + } else { + if (gst_adapter_available (nuv->adapter) < size) + return GST_FLOW_ERROR_NO_DATA; + + if (move) { + *buffer = gst_adapter_take_buffer (nuv->adapter, size); + } else { + guint8 *data = NULL; + + data = (guint8 *) gst_adapter_peek (nuv->adapter, size); + *buffer = gst_buffer_new (); + gst_buffer_set_data (*buffer, data, size); + } + } + + + return ret; +} + +static gboolean +gst_nuv_demux_sink_activate (GstPad * sinkpad) +{ + gboolean res = TRUE; + GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (sinkpad)); + + if (gst_pad_check_pull_range (sinkpad)) { + nuv->mode = 0; + if (nuv->adapter) { + gst_adapter_clear (nuv->adapter); + g_object_unref (nuv->adapter); + nuv->adapter = NULL; + } + res = gst_pad_activate_pull (sinkpad, TRUE); + } else { + nuv->mode = 1; + if (nuv->adapter) { + gst_adapter_clear (nuv->adapter); + } else { + nuv->adapter = gst_adapter_new (); + } + res = gst_pad_activate_push (sinkpad, TRUE); + } + + g_object_unref (nuv); + return res; +} + +static gboolean +gst_nuv_demux_sink_activate_pull (GstPad * sinkpad, gboolean active) +{ + GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (sinkpad)); + + if (active) { + gst_pad_start_task (sinkpad, (GstTaskFunction) gst_nuv_demux_loop, sinkpad); + } else { + gst_pad_stop_task (sinkpad); + } + gst_object_unref (nuv); + + return TRUE; +} + +static GstFlowReturn +gst_nuv_demux_chain (GstPad * pad, GstBuffer * buf) +{ + GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (pad)); + + gst_adapter_push (nuv->adapter, buf); + + return gst_nuv_demux_play (pad); +} + +static void +gst_nuv_demux_loop (GstPad * pad) +{ + gst_nuv_demux_play (pad); +} + +static void +gst_nuv_demux_reset (GstNuvDemux * nuv) +{ + nuv->state = GST_NUV_DEMUX_START; + nuv->mode = 0; + nuv->offset = 0; + nuv->video_offset = 0; + nuv->audio_offset = 0; + + if (nuv->adapter != NULL) + gst_adapter_clear (nuv->adapter); + + if (nuv->mpeg_buffer != NULL) { + gst_buffer_unref (nuv->mpeg_buffer); + nuv->mpeg_buffer = NULL; + } + + g_free (nuv->h); + nuv->h = NULL; + + g_free (nuv->eh); + nuv->eh = NULL; + + g_free (nuv->fh); + nuv->fh = NULL; +} + +static void +gst_nuv_demux_destoy_src_pad (GstNuvDemux * nuv) +{ + if (nuv->src_video_pad) { + gst_element_remove_pad (GST_ELEMENT (nuv), nuv->src_video_pad); + nuv->src_video_pad = NULL; + } + + if (nuv->src_audio_pad) { + gst_element_remove_pad (GST_ELEMENT (nuv), nuv->src_audio_pad); + nuv->src_audio_pad = NULL; + } +} + +static GstStateChangeReturn +gst_nuv_demux_change_state (GstElement * element, GstStateChange transition) +{ + GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; + + switch (transition) { + case GST_STATE_CHANGE_READY_TO_PAUSED: + break; + default: + break; + } + + ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); + if (ret == GST_STATE_CHANGE_FAILURE) + goto done; + + switch (transition) { + case GST_STATE_CHANGE_PAUSED_TO_READY: + gst_nuv_demux_destoy_src_pad (GST_NUV_DEMUX (element)); + gst_nuv_demux_reset (GST_NUV_DEMUX (element)); + break; + default: + break; + } + +done: + return ret; +} + +static gboolean +plugin_init (GstPlugin * plugin) +{ +#ifdef ENABLE_NLS + setlocale (LC_ALL, ""); + bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); +#endif /* ENABLE_NLS */ + + if (!gst_element_register (plugin, "nuvdemux", GST_RANK_SECONDARY, + GST_TYPE_NUV_DEMUX)) { + return FALSE; + } + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "nuvdemux", + "Demuxes and muxes audio and video", + plugin_init, VERSION, "LGPL", "NuvDemux", "") diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/nuvdemux/gstnuvdemux.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst-plugins-nuvdemux/nuvdemux/gstnuvdemux.h Thu Nov 09 19:45:27 2006 +0000 @@ -0,0 +1,198 @@ +/* GStreamer + * Copyright (C) <2006> Renato Araujo Oliveira Filho + * Rosfran Borges + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_NUV_DEMUX_H__ +#define __GST_NUV_DEMUX_H__ + +#include + +#include + +G_BEGIN_DECLS + +#define GST_TYPE_NUV_DEMUX \ + (gst_nuv_demux_get_type ()) +#define GST_NUV_DEMUX(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_NUV_DEMUX, GstNuvDemux)) +#define GST_NUV_DEMUX_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_NUV_DEMUX, GstNuvDemuxClass)) +#define GST_IS_NUV_DEMUX(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_NUV_DEMUX)) +#define GST_IS_NUV_DEMUX_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_NUV_DEMUX)) + +#define DEMUX_INDEX_SIZE_MAX (100000) + +/* Indexes (timecodes/offsets) conversion structures */ +typedef struct +{ + gint64 i_time; + gint64 i_offset; + +} nuv_demux_index_entry; + +typedef struct +{ + gint i_idx; + gint i_idx_max; + + nuv_demux_index_entry idx[DEMUX_INDEX_SIZE_MAX]; +} nuv_demux_index; + +/* */ +typedef struct +{ + gchar id[12]; /* "NuppelVideo\0" or "MythTVVideo\0" */ + gchar version[5]; /* "x.xx\0" */ + + gint i_width; + gint i_height; + gint i_width_desired; + gint i_height_desired; + + gchar i_mode; /* P progressive, I interlaced */ + + gdouble d_aspect; /* 1.0 squared pixel */ + gdouble d_fps; + + gint i_video_blocks; /* 0 no video, -1 unknown */ + gint i_audio_blocks; + gint i_text_blocks; + + gint i_keyframe_distance; + +} nuv_header; + +typedef struct +{ + gchar i_type; /* A: audio, V: video, S: sync; T: test + R: Seekpoint (string:RTjjjjjjjj) + D: Extra data for codec */ + gchar i_compression; /* V: 0 uncompressed + 1 RTJpeg + 2 RTJpeg+lzo + N black frame + L copy last + A: 0 uncompressed (44100 1-bits, 2ch) + 1 lzo + 2 layer 2 + 3 layer 3 + F flac + S shorten + N null frame loudless + L copy last + S: B audio and vdeo sync point + A audio sync info (timecode == effective + dsp frequency*100) + V next video sync (timecode == next video + frame num) + S audio,video,text correlation */ + gchar i_keyframe; /* 0 keyframe, else no no key frame */ + guint8 i_filters; /* 0x01: gauss 5 pixel (8,2,2,2,2)/16 + 0x02: gauss 5 pixel (8,1,1,1,1)/12 + 0x04: cartoon filter */ + + gint32 i_timecode; /* ms */ + + gint i_length; /* V,A,T: length of following data + S: length of packet correl */ +} nuv_frame_header; + +/* FIXME Not sure of this one */ +typedef struct +{ + gint i_version; + guint32 i_video_fcc; + + guint32 i_audio_fcc; + gint i_audio_sample_rate; + gint i_audio_bits_per_sample; + gint i_audio_channels; + gint i_audio_compression_ratio; + gint i_audio_quality; + gint i_rtjpeg_quality; + gint i_rtjpeg_luma_filter; + gint i_rtjpeg_chroma_filter; + gint i_lavc_bitrate; + gint i_lavc_qmin; + gint i_lavc_qmax; + gint i_lavc_maxqdiff; + gint64 i_seekable_offset; + gint64 i_keyframe_adjust_offset; + +} nuv_extended_header; + +typedef enum { + GST_NUV_DEMUX_START, + GST_NUV_DEMUX_HEADER_DATA, + GST_NUV_DEMUX_EXTRA_DATA, + GST_NUV_DEMUX_MPEG_DATA, + GST_NUV_DEMUX_EXTEND_HEADER, + GST_NUV_DEMUX_EXTEND_HEADER_DATA, + GST_NUV_DEMUX_FRAME_HEADER, + GST_NUV_DEMUX_MOVI, + GST_NUV_DEMUX_INVALID_DATA +} GstNuvDemuxState; + +typedef struct _GstNuvDemux { + GstElement parent; + + guint mode; + GstAdapter *adapter; + guint64 video_offset; + guint64 audio_offset; + + /* pads */ + + GstPad *sinkpad; + GstPad *src_video_pad; + GstPad *src_audio_pad; + gboolean first_video; + gboolean first_audio; + + /* NUV decoding state */ + GstNuvDemuxState state; + guint64 offset; + + /* Mpeg ExtraData */ + guint64 mpeg_data_size; + GstBuffer *mpeg_buffer; + + nuv_header *h; + nuv_extended_header *eh; + nuv_frame_header *fh; + + /* index */ + nuv_demux_index *index_entries; + guint index_size; + guint64 index_offset; + guint current_entry; + +} GstNuvDemux; + +typedef struct _GstNuvDemuxClass { + GstElementClass parent_class; +} GstNuvDemuxClass; + +GType gst_nuv_demux_get_type (void); + +G_END_DECLS + +#endif /* __GST_NUV_DEMUX_H__ */ diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/src/Makefile.am --- a/gst-plugins-nuvdemux/src/Makefile.am Thu Nov 09 19:12:55 2006 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,20 +0,0 @@ -plugin_LTLIBRARIES = libgstnuvdemux.la - -libgstnuvdemux_la_SOURCES = \ - gstnuvdemux.c - -libgstnuvdemux_la_CFLAGS = \ - $(GST_CFLAGS) \ - $(GST_PLUGINS_BASE_CFLAGS) - -libgstnuvdemux_la_LIBADD = \ - $(GST_LIBS_LIBS) - -libgstnuvdemux_la_LDFLAGS = \ - $(GST_PLUGIN_LDFLAGS) \ - $(GST_BASE_LIBS) \ - $(GST_PLUGINS_BASE_LIBS) - -noinst_HEADERS = \ - gstnuvdemux.h - diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/src/gstnuvdemux.c --- a/gst-plugins-nuvdemux/src/gstnuvdemux.c Thu Nov 09 19:12:55 2006 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1137 +0,0 @@ -/* GStreamer - * Copyright (C) <2006> Renato Araujo Oliveira Filho - * Rosfran Borges - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ -/* Element-Checklist-Version: 5 */ - -/** - * SECTION:element-nuvdemux - * - * - * - * Demuxes an .nuv file into raw or compressed audio and/or video streams. - * - * - * This element currently only supports pull-based scheduling. - * - * Example launch line - * - * - * gst-launch filesrc test.nuv ! nuvdemux name=demux demux.audio_00 ! decodebin ! audioconvert ! audioresample ! autoaudiosink demux.video_00 ! queue ! decodebin ! ffmpegcolorspace ! videoscale ! autovideosink - * - * Play (parse and decode) an .nuv file and try to output it to - * an automatically detected soundcard and videosink. If the NUV file contains - * compressed audio or video data, this will only work if you have the - * right decoder elements/plugins installed. - * - * - * - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include -#include -#include -#include - -#include "glib/gi18n.h" -#include "gstnuvdemux.h" - -GST_DEBUG_CATEGORY_STATIC (nuvdemux_debug); -#define GST_CAT_DEFAULT nuvdemux_debug - - -#define GST_FLOW_ERROR_NO_DATA -101 - -GST_DEBUG_CATEGORY_EXTERN (GST_CAT_EVENT); - -static const GstElementDetails gst_nuv_demux_details = -GST_ELEMENT_DETAILS ("Nuv demuxer", - "Codec/Demuxer", - "Demultiplex a .nuv file into audio and video", - "Renato Araujo Oliveira Filho ," - "Rosfran Borges "); - -static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/x-nuv")); - -static GstStaticPadTemplate audio_src_template = -GST_STATIC_PAD_TEMPLATE ("audio_src", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS_ANY); - -static GstStaticPadTemplate video_src_template = -GST_STATIC_PAD_TEMPLATE ("video_src", - GST_PAD_SRC, - GST_PAD_SOMETIMES, - GST_STATIC_CAPS_ANY); - -/* NUV Demux indexes init/dispose callers */ -static void gst_nuv_demux_index_init( nuv_demux_index **p_idx ); -static void gst_nuv_demux_index_clean( nuv_demux_index **p_idx ); - -/* NUV Demux indexes manipulation functions */ -//static gint64 gst_nuv_demux_index_find_offset( GstNuvDemux *nuv, gint64 i_offset ); -static void gst_nuv_demux_index_append( GstNuvDemux *nuv, gint64 i_time, gint64 i_offset ); -static gint64 gst_nuv_demux_index_convert_time( GstNuvDemux *nuv, gint64 i_time ); - -/* NUV Demux plug-in time-line functions */ -static void gst_nuv_demux_finalize (GObject * object); -static GstStateChangeReturn gst_nuv_demux_change_state (GstElement * element, - GstStateChange transition); -static void gst_nuv_demux_loop (GstPad * pad); -static GstFlowReturn gst_nuv_demux_chain (GstPad * pad, GstBuffer * buf); -static GstFlowReturn gst_nuv_demux_play (GstPad * pad); -static gboolean gst_nuv_demux_sink_activate_pull (GstPad * sinkpad, - gboolean active); -static gboolean gst_nuv_demux_sink_activate (GstPad * sinkpad); -static GstFlowReturn gst_nuv_demux_read_bytes (GstNuvDemux * nuv, guint64 size, - gboolean move, GstBuffer ** buffer); -static void gst_nuv_demux_reset (GstNuvDemux * nuv); -static gboolean gst_nuv_demux_handle_sink_event (GstPad * sinkpad, - GstEvent * event); -static gboolean gst_nuv_demux_handle_audio_src_event (GstPad * sinkpad, - GstEvent * event); -static gboolean gst_nuv_demux_handle_video_src_event (GstPad * sinkpad, - GstEvent * event); -static void gst_nuv_demux_destoy_src_pad (GstNuvDemux * nuv); -static void gst_nuv_demux_send_eos (GstNuvDemux * nuv); - -/* GObject methods */ -GST_BOILERPLATE (GstNuvDemux, gst_nuv_demux, GstElement, GST_TYPE_ELEMENT); - -#if G_BYTE_ORDER == G_BIG_ENDIAN -static inline gdouble -_gdouble_swap_le_be (gdouble * d) -{ - union - { - guint64 i; - gdouble d; - } u; - - u.d = *d; - u.i = GUINT64_SWAP_LE_BE (u.i); - return u.d; -} - -#define READ_DOUBLE_FROM_LE(d) (_gdouble_swap_le_be((gdouble* ) d)) -#else /* G_BYTE_ORDER != G_BIG_ENDIAN */ -#define READ_DOUBLE_FROM_LE(d) *((gdouble* ) (d)) -#endif /* G_BYTE_ORDER != G_BIG_ENDIAN */ - -static void -gst_nuv_demux_base_init (gpointer klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&audio_src_template)); - - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&video_src_template)); - - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&sink_template)); - gst_element_class_set_details (element_class, &gst_nuv_demux_details); -} - -static void -gst_nuv_demux_class_init (GstNuvDemuxClass * klass) -{ - GstElementClass *gstelement_class = GST_ELEMENT_CLASS (klass); - GObjectClass *gobject_class = (GObjectClass *) klass; - - GST_DEBUG_CATEGORY_INIT (nuvdemux_debug, "nuvdemux", - 0, "Demuxer for NUV streams"); - - parent_class = g_type_class_peek_parent (klass); - - gobject_class->finalize = gst_nuv_demux_finalize; - gstelement_class->change_state = gst_nuv_demux_change_state; -} - -static void -gst_nuv_demux_init (GstNuvDemux * nuv, GstNuvDemuxClass * nuv_class) -{ - nuv->sinkpad = gst_pad_new_from_static_template (&sink_template, "sink"); - - gst_pad_set_activate_function (nuv->sinkpad, gst_nuv_demux_sink_activate); - - gst_pad_set_activatepull_function (nuv->sinkpad, - gst_nuv_demux_sink_activate_pull); - - gst_pad_set_chain_function (nuv->sinkpad, - GST_DEBUG_FUNCPTR (gst_nuv_demux_chain)); - - gst_pad_set_event_function (nuv->sinkpad, gst_nuv_demux_handle_sink_event); - - gst_element_add_pad (GST_ELEMENT (nuv), nuv->sinkpad); - - gst_nuv_demux_index_init( &nuv->index_entries ); - - nuv->adapter = NULL; - nuv->mpeg_buffer = NULL; - nuv->h = NULL; - nuv->eh = NULL; - nuv->fh = NULL; - gst_nuv_demux_reset (nuv); -} - -static void -gst_nuv_demux_finalize (GObject * object) -{ - GstNuvDemux *nuv = GST_NUV_DEMUX (object); - - if (nuv->mpeg_buffer != NULL) { - gst_buffer_unref (nuv->mpeg_buffer); - } - - if ( nuv->index_entries != NULL ) { - gst_nuv_demux_index_clean( &nuv->index_entries ); - nuv->index_entries = NULL; - } - - gst_nuv_demux_destoy_src_pad (nuv); - gst_nuv_demux_reset (nuv); - if (nuv->adapter != NULL) { - gst_object_unref (nuv->adapter); - } - G_OBJECT_CLASS (parent_class)->finalize (object); -} - - -/***************************************************************************** - * Indexes (timecode offset conversion) functions - *****************************************************************************/ - -static void -gst_nuv_demux_index_init( nuv_demux_index **p_idx ) -{ - *p_idx = g_new0( nuv_demux_index, 1 ); - (*p_idx)->i_idx = 0; - (*p_idx)->i_idx_max = 0; -} - -static void -gst_nuv_demux_index_clean( nuv_demux_index **p_idx ) -{ - if ( *p_idx != NULL ) { - g_free( *p_idx ); - *p_idx = NULL; - } - -} - -static void -gst_nuv_demux_index_append( GstNuvDemux *nuv, gint64 i_time, gint64 i_offset ) -{ - nuv_demux_index *p_idx = nuv->index_entries; - - //if ( p_idx == NULL ) - // return; - - /* Be sure to append new entry (we don't insert point) */ - if( p_idx != NULL && p_idx->i_idx > 0 && p_idx->idx[p_idx->i_idx-1].i_time >= i_time ) - return; - - /* */ - if( p_idx->i_idx >= p_idx->i_idx_max ) - { - if( p_idx->i_idx >= DEMUX_INDEX_SIZE_MAX ) - { - /* Avoid too big index */ - const gint64 i_length = p_idx->idx[p_idx->i_idx-1].i_time - - p_idx->idx[0].i_time; - const gint i_count = DEMUX_INDEX_SIZE_MAX/2; - gint i, j; - - /* We try to reduce the resolution of the index by a factor 2 */ - for( i = 1, j = 1; i < p_idx->i_idx; i++ ) - { - if( p_idx->idx[i].i_time < j * i_length / i_count ) - continue; - - p_idx->idx[j++] = p_idx->idx[i]; - } - p_idx->i_idx = j; - - if( p_idx->i_idx > 3 * DEMUX_INDEX_SIZE_MAX / 4 ) - { - /* We haven't created enough space - * (This method won't create a good index but work for sure) */ - for( i = 0; i < p_idx->i_idx/2; i++ ) - p_idx->idx[i] = p_idx->idx[2*i]; - p_idx->i_idx /= 2; - } - } - else - { - p_idx->i_idx_max += 1000; - } - } - - /* */ - p_idx->idx[p_idx->i_idx].i_time = i_time; - p_idx->idx[p_idx->i_idx].i_offset = i_offset; - - p_idx->i_idx++; -} - -static gint64 -gst_nuv_demux_index_convert_time( GstNuvDemux *nuv, gint64 i_time ) -{ - nuv_demux_index *p_idx = nuv->index_entries; - - g_return_val_if_fail( p_idx != NULL , i_time ); - - gint i_min = 0; - gint i_max = p_idx->i_idx-1; - - /* Empty index */ - if( p_idx->i_idx <= 0 ) - return -1; - - /* Special border case */ - if( i_time <= p_idx->idx[0].i_time ) - return p_idx->idx[0].i_offset; - if( i_time >= p_idx->idx[i_max].i_time ) - return p_idx->idx[i_max].i_offset; - - /* Dicho */ - for( ;; ) - { - gint i_med; - - if( i_max - i_min <= 1 ) - break; - - i_med = (i_min+i_max)/2; - if( p_idx->idx[i_med].i_time < i_time ) - i_min = i_med; - else if( p_idx->idx[i_med].i_time > i_time ) - i_max = i_med; - else - return p_idx->idx[i_med].i_offset; - } - - /* return nearest in time */ - if( i_time - p_idx->idx[i_min].i_time < p_idx->idx[i_max].i_time - i_time ) - return p_idx->idx[i_min].i_offset; - else - return p_idx->idx[i_max].i_offset; -} - -/***************************************************************************** - * Utils functions - *****************************************************************************/ - -static gboolean -gst_nuv_demux_handle_sink_event (GstPad * sinkpad, GstEvent * event) -{ - gboolean res = FALSE; - - switch (GST_EVENT_TYPE (event)) { - case GST_EVENT_NEWSEGMENT: - res = TRUE; - break; - default: - return gst_pad_event_default (sinkpad, event); - break; - } - - gst_event_unref (event); - return res; -} - -/* HeaderLoad: - */ -static GstFlowReturn -gst_nuv_demux_header_load (GstNuvDemux * nuv, nuv_header ** h_ret) -{ - GstBuffer *buffer = NULL; - GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 72, TRUE, &buffer); - - if (res != GST_FLOW_OK) - return res; - - nuv_header *h = g_new0 (nuv_header, 1); - - memcpy (h->id, buffer->data, 12); - memcpy (h->version, buffer->data + 12, 5); - h->i_width = GST_READ_UINT32_LE (&buffer->data[20]); - h->i_height = GST_READ_UINT32_LE (&buffer->data[24]); - h->i_width_desired = GST_READ_UINT32_LE (&buffer->data[28]); - h->i_height_desired = GST_READ_UINT32_LE (&buffer->data[32]); - h->i_mode = buffer->data[36]; - h->d_aspect = READ_DOUBLE_FROM_LE (&buffer->data[40]); - h->d_fps = READ_DOUBLE_FROM_LE (&buffer->data[48]); - h->i_video_blocks = GST_READ_UINT32_LE (&buffer->data[56]); - h->i_audio_blocks = GST_READ_UINT32_LE (&buffer->data[60]); - h->i_text_blocks = GST_READ_UINT32_LE (&buffer->data[64]); - h->i_keyframe_distance = GST_READ_UINT32_LE (&buffer->data[68]); - - GST_DEBUG_OBJECT (nuv, - "nuv: h=%s v=%s %dx%d a=%f fps=%f v=%d a=%d t=%d kfd=%d", h->id, - h->version, h->i_width, h->i_height, h->d_aspect, h->d_fps, - h->i_video_blocks, h->i_audio_blocks, h->i_text_blocks, - h->i_keyframe_distance); - - *h_ret = h; - gst_buffer_unref (buffer); - return res; -} - -static GstFlowReturn -gst_nuv_demux_stream_header_data (GstNuvDemux * nuv) -{ - GstFlowReturn res = gst_nuv_demux_header_load (nuv, &nuv->h); - - if (res == GST_FLOW_OK) - nuv->state = GST_NUV_DEMUX_EXTRA_DATA; - return res; -} - -/* - * Read NUV file tag - */ -static GstFlowReturn -gst_nuv_demux_stream_file_header (GstNuvDemux * nuv) -{ - GstFlowReturn res = GST_FLOW_OK; - GstBuffer *file_header = NULL; - - res = gst_nuv_demux_read_bytes (nuv, 12, FALSE, &file_header); - if (res != GST_FLOW_OK) { - return res; - } else { - if (strncmp ((gchar *) file_header->data, "MythTVVideo", 11) || - strncmp ((gchar *) file_header->data, "NuppelVideo", 11)) { - nuv->state = GST_NUV_DEMUX_HEADER_DATA; - } else { - GST_DEBUG_OBJECT (nuv, "error parsing file header"); - nuv->state = GST_NUV_DEMUX_INVALID_DATA; - res = GST_FLOW_ERROR; - } - } - if (file_header != NULL) { - gst_buffer_unref (file_header); - } - return res; -} - -/* FrameHeaderLoad: - */ -static GstFlowReturn -gst_nuv_demux_frame_header_load (GstNuvDemux * nuv, nuv_frame_header ** h_ret) -{ - unsigned char *data; - nuv_frame_header *h; - GstBuffer *buf = NULL; - - GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 12, TRUE, &buf); - - if (res != GST_FLOW_OK) { - if (buf != NULL) { - gst_buffer_unref (buf); - } - return res; - } - - h = g_new0 (nuv_frame_header, 1); - data = buf->data; - - h->i_type = data[0]; - h->i_compression = data[1]; - h->i_keyframe = data[2]; - h->i_filters = data[3]; - - h->i_timecode = GST_READ_UINT32_LE (&data[4]); - - - h->i_length = GST_READ_UINT32_LE (&data[8]); - GST_DEBUG_OBJECT (nuv, "frame hdr: t=%c c=%c k=%d f=0x%x timecode=%d l=%d", - h->i_type, - h->i_compression ? h->i_compression : ' ', - h->i_keyframe ? h->i_keyframe : ' ', - h->i_filters, h->i_timecode, h->i_length); - - *h_ret = h; - gst_buffer_unref (buf); - return GST_FLOW_OK; -} - -static GstFlowReturn -gst_nuv_demux_extended_header_load (GstNuvDemux * nuv, - nuv_extended_header ** h_ret) -{ - unsigned char *data; - GstBuffer *buff = NULL; - nuv_extended_header *h; - - - GstFlowReturn res = gst_nuv_demux_read_bytes (nuv, 512, TRUE, &buff); - - if (res != GST_FLOW_OK) { - if (buff != NULL) { - gst_buffer_unref (buff); - } - return res; - } - - h = g_new0 (nuv_extended_header, 1); - data = buff->data; - h->i_version = GST_READ_UINT32_LE (&data[0]); - h->i_video_fcc = GST_MAKE_FOURCC (data[4], data[5], data[6], data[7]); - h->i_audio_fcc = GST_MAKE_FOURCC (data[8], data[9], data[10], data[11]); - h->i_audio_sample_rate = GST_READ_UINT32_LE (&data[12]); - h->i_audio_bits_per_sample = GST_READ_UINT32_LE (&data[16]); - h->i_audio_channels = GST_READ_UINT32_LE (&data[20]); - h->i_audio_compression_ratio = GST_READ_UINT32_LE (&data[24]); - h->i_audio_quality = GST_READ_UINT32_LE (&data[28]); - h->i_rtjpeg_quality = GST_READ_UINT32_LE (&data[32]); - h->i_rtjpeg_luma_filter = GST_READ_UINT32_LE (&data[36]); - h->i_rtjpeg_chroma_filter = GST_READ_UINT32_LE (&data[40]); - h->i_lavc_bitrate = GST_READ_UINT32_LE (&data[44]); - h->i_lavc_qmin = GST_READ_UINT32_LE (&data[48]); - h->i_lavc_qmin = GST_READ_UINT32_LE (&data[52]); - h->i_lavc_maxqdiff = GST_READ_UINT32_LE (&data[56]); - h->i_seekable_offset = GST_READ_UINT64_LE (&data[60]); - h->i_keyframe_adjust_offset = GST_READ_UINT64_LE (&data[68]); - - GST_DEBUG_OBJECT (nuv, - "ex hdr: v=%d vffc=%4.4s afcc=%4.4s %dHz %dbits ach=%d acr=%d aq=%d" - "rtjpeg q=%d lf=%d lc=%d lavc br=%d qmin=%d qmax=%d maxqdiff=%d seekableoff=%lld keyfao=%lld", - h->i_version, (gchar *) & h->i_video_fcc, (gchar *) & h->i_audio_fcc, - h->i_audio_sample_rate, h->i_audio_bits_per_sample, h->i_audio_channels, - h->i_audio_compression_ratio, h->i_audio_quality, h->i_rtjpeg_quality, - h->i_rtjpeg_luma_filter, h->i_rtjpeg_chroma_filter, h->i_lavc_bitrate, - h->i_lavc_qmin, h->i_lavc_qmax, h->i_lavc_maxqdiff, h->i_seekable_offset, - h->i_keyframe_adjust_offset); - - *h_ret = h; - gst_buffer_unref (buff); - return res; -} - -static gboolean -gst_nuv_demux_handle_audio_src_event (GstPad * pad, GstEvent * event) -{ - gst_event_unref (event); - return FALSE; -} - -static gboolean -gst_nuv_demux_handle_video_src_event (GstPad * pad, GstEvent * event) -{ - gst_event_unref (event); - return FALSE; -} - -static void -gst_nuv_demux_create_pads (GstNuvDemux * nuv) -{ - if (nuv->h->i_video_blocks != 0) { - GstCaps *video_caps = NULL; - - nuv->src_video_pad = - gst_pad_new_from_static_template (&video_src_template, "video_src"); - - video_caps = gst_caps_new_simple ("video/x-divx", - "divxversion", G_TYPE_INT, 4, - "width", G_TYPE_INT, nuv->h->i_width, - "height", G_TYPE_INT, nuv->h->i_height, - "framerate", GST_TYPE_FRACTION, (gint) (nuv->h->d_fps * 1000.0f), 1000, - "pixel-aspect-ratio", GST_TYPE_FRACTION, - (gint) (nuv->h->d_aspect * 1000.0f), 1000, NULL); - - gst_pad_use_fixed_caps (nuv->src_video_pad); - gst_pad_set_caps (nuv->src_video_pad, video_caps); - - gst_pad_set_event_function (nuv->src_video_pad, - gst_nuv_demux_handle_video_src_event); - gst_pad_set_active (nuv->src_video_pad, TRUE); - gst_element_add_pad (GST_ELEMENT (nuv), nuv->src_video_pad); - - gst_caps_unref (video_caps); - } - - if (nuv->h->i_audio_blocks != 0) { - GstCaps *audio_caps = NULL; - - nuv->src_audio_pad = - gst_pad_new_from_static_template (&audio_src_template, "audio_src"); - - audio_caps = gst_caps_new_simple ("audio/mpeg", - "rate", G_TYPE_INT, nuv->eh->i_audio_sample_rate, - "format", GST_TYPE_FOURCC, nuv->eh->i_audio_fcc, - "channels", G_TYPE_INT, nuv->eh->i_audio_channels, - "mpegversion", G_TYPE_INT, nuv->eh->i_version, NULL); - - gst_pad_use_fixed_caps (nuv->src_audio_pad); - gst_pad_set_caps (nuv->src_audio_pad, audio_caps); - - gst_pad_set_event_function (nuv->src_audio_pad, - gst_nuv_demux_handle_audio_src_event); - gst_pad_set_active (nuv->src_audio_pad, TRUE); - gst_element_add_pad (GST_ELEMENT (nuv), nuv->src_audio_pad); - - gst_caps_unref (audio_caps); - } - - gst_element_no_more_pads (GST_ELEMENT (nuv)); -} - -static GstFlowReturn -gst_nuv_demux_read_head_frame (GstNuvDemux * nuv) -{ - GstFlowReturn ret = GST_FLOW_OK; - - ret = gst_nuv_demux_frame_header_load (nuv, &nuv->fh); - if (ret != GST_FLOW_OK) - return ret; - - nuv->state = GST_NUV_DEMUX_MOVI; - return ret; -} - -static GstFlowReturn -gst_nuv_demux_stream_data (GstNuvDemux * nuv) -{ - GstFlowReturn ret = GST_FLOW_OK; - GstBuffer *buf = NULL; - nuv_frame_header *h = nuv->fh; - - gint64 table_timecode = 0; - - if (h->i_type == 'R') - goto done; - - table_timecode = h->i_timecode; - - /* append the frame's header timecode field, and the actual offset */ - if ( h->i_type == 'V' ) - gst_nuv_demux_index_append( nuv, h->i_timecode, nuv->video_offset ); - else if ( h->i_type == 'A' ) - gst_nuv_demux_index_append( nuv, h->i_timecode, nuv->audio_offset ); - - if (h->i_length > 0) { - ret = gst_nuv_demux_read_bytes (nuv, h->i_length, TRUE, &buf); - if (ret != GST_FLOW_OK) - return ret; - - /* search for a valid timecode in the indexes list (find the nearest valid timecode) */ - if ( h->i_timecode < 0 ) { - /* convert this actual timecode to a valid index in the timecode's table */ - gint64 pos = gst_nuv_demux_index_convert_time( nuv, h->i_timecode ); - - /* just get the timecode from the timecode's table */ - table_timecode = nuv->index_entries->idx[pos].i_time * GST_MSECOND; - } else { - table_timecode = h->i_timecode * GST_MSECOND; - } - - GST_BUFFER_TIMESTAMP (buf) = table_timecode; - } - - switch (h->i_type) { - case 'V': - { - if (h->i_length == 0) - break; - - if ( !gst_pad_is_linked( nuv->src_video_pad ) ) - break; - - //GST_PAD_STREAM_LOCK(nuv->src_video_pad); - - GST_BUFFER_SIZE (buf) = h->i_length; - gst_buffer_set_caps (buf, GST_PAD_CAPS (nuv->src_video_pad)); - ret = gst_pad_push (nuv->src_video_pad, buf); - nuv->video_offset += h->i_length; - - //GST_PAD_STREAM_UNLOCK(nuv->src_video_pad); - break; - } - case 'A': - { - if (h->i_length == 0) - break; - - if ( !gst_pad_is_linked( nuv->src_audio_pad ) ) - break; - - //GST_PAD_STREAM_LOCK(nuv->src_audio_pad); - - GST_BUFFER_SIZE (buf) = h->i_length; - gst_buffer_set_caps (buf, GST_PAD_CAPS (nuv->src_audio_pad)); - ret = gst_pad_push (nuv->src_audio_pad, buf); - nuv->audio_offset += h->i_length; - - //GST_PAD_STREAM_UNLOCK(nuv->src_audio_pad); - break; - } - case 'S': - { - switch (h->i_compression) { - case 'V': - if ( !gst_pad_is_linked( nuv->src_video_pad ) ) - break; - - //GST_PAD_STREAM_LOCK(nuv->src_video_pad); - gst_pad_push_event (nuv->src_video_pad, - gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, table_timecode, - GST_CLOCK_TIME_NONE, 0)); - //GST_PAD_STREAM_UNLOCK(nuv->src_video_pad); - break; - case 'A': - if ( !gst_pad_is_linked( nuv->src_audio_pad ) ) - break; - - //GST_PAD_STREAM_LOCK(nuv->src_audio_pad); - gst_pad_push_event (nuv->src_audio_pad, - gst_event_new_new_segment (TRUE, 1.0, GST_FORMAT_TIME, table_timecode, - GST_CLOCK_TIME_NONE, 0)); - //GST_PAD_STREAM_UNLOCK(nuv->src_audio_pad); - break; - default: - break; - } - } - default: - if (buf != NULL) - gst_buffer_unref (buf); - - break; - } - -done: - nuv->state = GST_NUV_DEMUX_FRAME_HEADER; - g_free (nuv->fh); - nuv->fh = NULL; - return ret; -} - -static GstFlowReturn -gst_nuv_demux_stream_mpeg_data (GstNuvDemux * nuv) -{ - GstFlowReturn ret = GST_FLOW_OK; - - /* ffmpeg extra data */ - ret = - gst_nuv_demux_read_bytes (nuv, nuv->mpeg_data_size, TRUE, - &nuv->mpeg_buffer); - if (ret != GST_FLOW_OK) { - return ret; //GST_FLOW_ERROR; - } - GST_BUFFER_SIZE (nuv->mpeg_buffer) = nuv->mpeg_data_size; - nuv->state = GST_NUV_DEMUX_EXTEND_HEADER; - return ret; -} - -static GstFlowReturn -gst_nuv_demux_stream_extra_data (GstNuvDemux * nuv) -{ - GstFlowReturn ret = GST_FLOW_OK; - - /* Load 'D' */ - nuv_frame_header *h; - - ret = gst_nuv_demux_frame_header_load (nuv, &h); - if (ret != GST_FLOW_OK) - return ret; - - if (h->i_type != 'D') { - g_free (h); - return GST_FLOW_ERROR; - } - - if (h->i_length > 0) { - if (h->i_compression == 'F') { - nuv->state = GST_NUV_DEMUX_MPEG_DATA; - } else { - g_free (h); - return GST_FLOW_ERROR; - } - } else { - nuv->state = GST_NUV_DEMUX_EXTEND_HEADER; - } - - g_free (h); - h = NULL; - return ret; -} - -static GstFlowReturn -gst_nuv_demux_stream_extend_header_data (GstNuvDemux * nuv) -{ - GstFlowReturn ret = GST_FLOW_OK; - - ret = gst_nuv_demux_extended_header_load (nuv, &nuv->eh); - if (ret != GST_FLOW_OK) - return ret; - - gst_nuv_demux_create_pads (nuv); - nuv->state = GST_NUV_DEMUX_FRAME_HEADER; - return ret; -} - -static GstFlowReturn -gst_nuv_demux_stream_extend_header (GstNuvDemux * nuv) -{ - GstBuffer *buf = NULL; - GstFlowReturn res = GST_FLOW_OK; - - res = gst_nuv_demux_read_bytes (nuv, 1, FALSE, &buf); - if (res != GST_FLOW_OK) { - if (buf != NULL) { - gst_buffer_unref (buf); - } - return res; - } - - if (buf->data[0] == 'X') { - gst_buffer_unref (buf); - buf = NULL; - nuv_frame_header *h = NULL; - - res = gst_nuv_demux_frame_header_load (nuv, &h); - if (res != GST_FLOW_OK) - return res; - - if (h->i_length != 512) { - g_free (h); - return GST_FLOW_ERROR; - } - g_free (h); - h = NULL; - nuv->state = GST_NUV_DEMUX_EXTEND_HEADER_DATA; - } else { - nuv->state = GST_NUV_DEMUX_INVALID_DATA; - g_object_unref (buf); - GST_ELEMENT_WARNING (nuv, STREAM, FAILED, - (_("incomplete NUV support")), ("incomplete NUV support")); - return GST_FLOW_ERROR; - } - return res; -} - -static GstFlowReturn -gst_nuv_demux_play (GstPad * pad) -{ - GstFlowReturn res = GST_FLOW_OK; - GstNuvDemux *nuv = GST_NUV_DEMUX (GST_PAD_PARENT (pad)); - - switch (nuv->state) { - case GST_NUV_DEMUX_START: - res = gst_nuv_demux_stream_file_header (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - if (nuv->state != GST_NUV_DEMUX_HEADER_DATA) - break; - - case GST_NUV_DEMUX_HEADER_DATA: - res = gst_nuv_demux_stream_header_data (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - if (nuv->state != GST_NUV_DEMUX_EXTRA_DATA) - break; - - case GST_NUV_DEMUX_EXTRA_DATA: - res = gst_nuv_demux_stream_extra_data (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - if (nuv->state != GST_NUV_DEMUX_MPEG_DATA) - break; - - case GST_NUV_DEMUX_MPEG_DATA: - res = gst_nuv_demux_stream_mpeg_data (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - - if (nuv->state != GST_NUV_DEMUX_EXTEND_HEADER) - break; - - case GST_NUV_DEMUX_EXTEND_HEADER: - res = gst_nuv_demux_stream_extend_header (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - if (nuv->state != GST_NUV_DEMUX_EXTEND_HEADER_DATA) - break; - - case GST_NUV_DEMUX_EXTEND_HEADER_DATA: - res = gst_nuv_demux_stream_extend_header_data (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - - if (nuv->state != GST_NUV_DEMUX_FRAME_HEADER) - break; - - case GST_NUV_DEMUX_FRAME_HEADER: - res = gst_nuv_demux_read_head_frame (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA)) { - goto pause; - } - if (nuv->state != GST_NUV_DEMUX_MOVI) - break; - - case GST_NUV_DEMUX_MOVI: - res = gst_nuv_demux_stream_data (nuv); - if ((res != GST_FLOW_OK) && (res != GST_FLOW_ERROR_NO_DATA) && (res != GST_FLOW_CUSTOM_ERROR)) { - goto pause; - } - break; - case GST_NUV_DEMUX_INVALID_DATA: - goto pause; - break; - default: - g_assert_not_reached (); - } - - GST_DEBUG_OBJECT (nuv, "state: %d res:%s", nuv->state, - gst_flow_get_name (res)); - - return GST_FLOW_OK; - -pause: - GST_LOG_OBJECT (nuv, "pausing task, reason %s", gst_flow_get_name (res)); - gst_pad_pause_task (nuv->sinkpad); - if (GST_FLOW_IS_FATAL (res)) { - GST_ELEMENT_ERROR (nuv, STREAM, FAILED, - (_("Internal data stream error.")), - ("streaming stopped, reason %s", gst_flow_get_name (res))); - - gst_nuv_demux_send_eos (nuv); - } - return res; -} - -static void -gst_nuv_demux_send_eos (GstNuvDemux * nuv) -{ - gst_element_post_message (GST_ELEMENT (nuv), - gst_message_new_segment_done (GST_OBJECT (nuv), GST_FORMAT_TIME, -1)); - - if (nuv->src_video_pad) - gst_pad_push_event (nuv->src_video_pad, gst_event_new_eos ()); - if (nuv->src_audio_pad) - gst_pad_push_event (nuv->src_audio_pad, gst_event_new_eos ()); -} - -static GstFlowReturn -gst_nuv_demux_read_bytes (GstNuvDemux * nuv, guint64 size, gboolean move, - GstBuffer ** buffer) -{ - GstFlowReturn ret = GST_FLOW_OK; - - if (size == 0) { - *buffer = gst_buffer_new (); - return ret; - } - - if (nuv->mode == 0) { - ret = gst_pad_pull_range (nuv->sinkpad, nuv->offset, size, buffer); - if (ret == GST_FLOW_OK) { - if (move) { - nuv->offset += size; - } - /* got eos */ - } else if (ret == GST_FLOW_UNEXPECTED) { - gst_nuv_demux_send_eos (nuv); - return GST_FLOW_WRONG_STATE; - } - } else { - if (gst_adapter_available (nuv->adapter) < size) - return GST_FLOW_ERROR_NO_DATA; - - if (move) { - *buffer = gst_adapter_take_buffer (nuv->adapter, size); - } else { - guint8 *data = NULL; - - data = (guint8 *) gst_adapter_peek (nuv->adapter, size); - *buffer = gst_buffer_new (); - gst_buffer_set_data (*buffer, data, size); - } - } - - - return ret; -} - -static gboolean -gst_nuv_demux_sink_activate (GstPad * sinkpad) -{ - gboolean res = TRUE; - GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (sinkpad)); - - if (gst_pad_check_pull_range (sinkpad)) { - nuv->mode = 0; - if (nuv->adapter) { - gst_adapter_clear (nuv->adapter); - g_object_unref (nuv->adapter); - nuv->adapter = NULL; - } - res = gst_pad_activate_pull (sinkpad, TRUE); - } else { - nuv->mode = 1; - if (nuv->adapter) { - gst_adapter_clear (nuv->adapter); - } else { - nuv->adapter = gst_adapter_new (); - } - res = gst_pad_activate_push (sinkpad, TRUE); - } - - g_object_unref (nuv); - return res; -} - -static gboolean -gst_nuv_demux_sink_activate_pull (GstPad * sinkpad, gboolean active) -{ - GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (sinkpad)); - - if (active) { - gst_pad_start_task (sinkpad, (GstTaskFunction) gst_nuv_demux_loop, sinkpad); - } else { - gst_pad_stop_task (sinkpad); - } - gst_object_unref (nuv); - - return TRUE; -} - -static GstFlowReturn -gst_nuv_demux_chain (GstPad * pad, GstBuffer * buf) -{ - GstNuvDemux *nuv = GST_NUV_DEMUX (gst_pad_get_parent (pad)); - - gst_adapter_push (nuv->adapter, buf); - - return gst_nuv_demux_play (pad); -} - -static void -gst_nuv_demux_loop (GstPad * pad) -{ - gst_nuv_demux_play (pad); -} - -static void -gst_nuv_demux_reset (GstNuvDemux * nuv) -{ - nuv->state = GST_NUV_DEMUX_START; - nuv->mode = 0; - nuv->offset = 0; - nuv->video_offset = 0; - nuv->audio_offset = 0; - - if (nuv->adapter != NULL) - gst_adapter_clear (nuv->adapter); - - if (nuv->mpeg_buffer != NULL) { - gst_buffer_unref (nuv->mpeg_buffer); - nuv->mpeg_buffer = NULL; - } - - g_free (nuv->h); - nuv->h = NULL; - - g_free (nuv->eh); - nuv->eh = NULL; - - g_free (nuv->fh); - nuv->fh = NULL; -} - -static void -gst_nuv_demux_destoy_src_pad (GstNuvDemux * nuv) -{ - if (nuv->src_video_pad) { - gst_element_remove_pad (GST_ELEMENT (nuv), nuv->src_video_pad); - nuv->src_video_pad = NULL; - } - - if (nuv->src_audio_pad) { - gst_element_remove_pad (GST_ELEMENT (nuv), nuv->src_audio_pad); - nuv->src_audio_pad = NULL; - } -} - -static GstStateChangeReturn -gst_nuv_demux_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_PAUSED: - break; - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - if (ret == GST_STATE_CHANGE_FAILURE) - goto done; - - switch (transition) { - case GST_STATE_CHANGE_PAUSED_TO_READY: - gst_nuv_demux_destoy_src_pad (GST_NUV_DEMUX (element)); - gst_nuv_demux_reset (GST_NUV_DEMUX (element)); - break; - default: - break; - } - -done: - return ret; -} - -static gboolean -plugin_init (GstPlugin * plugin) -{ -#ifdef ENABLE_NLS - setlocale (LC_ALL, ""); - bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR); -#endif /* ENABLE_NLS */ - - if (!gst_element_register (plugin, "nuvdemux", GST_RANK_SECONDARY, - GST_TYPE_NUV_DEMUX)) { - return FALSE; - } - return TRUE; -} - -GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, - GST_VERSION_MINOR, - "nuvdemux", - "Demuxes and muxes audio and video", - plugin_init, VERSION, "LGPL", "NuvDemux", "") diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/src/gstnuvdemux.h --- a/gst-plugins-nuvdemux/src/gstnuvdemux.h Thu Nov 09 19:12:55 2006 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,198 +0,0 @@ -/* GStreamer - * Copyright (C) <2006> Renato Araujo Oliveira Filho - * Rosfran Borges - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Library General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Library General Public License for more details. - * - * You should have received a copy of the GNU Library General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - -#ifndef __GST_NUV_DEMUX_H__ -#define __GST_NUV_DEMUX_H__ - -#include - -#include - -G_BEGIN_DECLS - -#define GST_TYPE_NUV_DEMUX \ - (gst_nuv_demux_get_type ()) -#define GST_NUV_DEMUX(obj) \ - (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_NUV_DEMUX, GstNuvDemux)) -#define GST_NUV_DEMUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_NUV_DEMUX, GstNuvDemuxClass)) -#define GST_IS_NUV_DEMUX(obj) \ - (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_NUV_DEMUX)) -#define GST_IS_NUV_DEMUX_CLASS(klass) \ - (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_NUV_DEMUX)) - -#define DEMUX_INDEX_SIZE_MAX (100000) - -/* Indexes (timecodes/offsets) conversion structures */ -typedef struct -{ - gint64 i_time; - gint64 i_offset; - -} nuv_demux_index_entry; - -typedef struct -{ - gint i_idx; - gint i_idx_max; - - nuv_demux_index_entry idx[DEMUX_INDEX_SIZE_MAX]; -} nuv_demux_index; - -/* */ -typedef struct -{ - gchar id[12]; /* "NuppelVideo\0" or "MythTVVideo\0" */ - gchar version[5]; /* "x.xx\0" */ - - gint i_width; - gint i_height; - gint i_width_desired; - gint i_height_desired; - - gchar i_mode; /* P progressive, I interlaced */ - - gdouble d_aspect; /* 1.0 squared pixel */ - gdouble d_fps; - - gint i_video_blocks; /* 0 no video, -1 unknown */ - gint i_audio_blocks; - gint i_text_blocks; - - gint i_keyframe_distance; - -} nuv_header; - -typedef struct -{ - gchar i_type; /* A: audio, V: video, S: sync; T: test - R: Seekpoint (string:RTjjjjjjjj) - D: Extra data for codec */ - gchar i_compression; /* V: 0 uncompressed - 1 RTJpeg - 2 RTJpeg+lzo - N black frame - L copy last - A: 0 uncompressed (44100 1-bits, 2ch) - 1 lzo - 2 layer 2 - 3 layer 3 - F flac - S shorten - N null frame loudless - L copy last - S: B audio and vdeo sync point - A audio sync info (timecode == effective - dsp frequency*100) - V next video sync (timecode == next video - frame num) - S audio,video,text correlation */ - gchar i_keyframe; /* 0 keyframe, else no no key frame */ - guint8 i_filters; /* 0x01: gauss 5 pixel (8,2,2,2,2)/16 - 0x02: gauss 5 pixel (8,1,1,1,1)/12 - 0x04: cartoon filter */ - - gint32 i_timecode; /* ms */ - - gint i_length; /* V,A,T: length of following data - S: length of packet correl */ -} nuv_frame_header; - -/* FIXME Not sure of this one */ -typedef struct -{ - gint i_version; - guint32 i_video_fcc; - - guint32 i_audio_fcc; - gint i_audio_sample_rate; - gint i_audio_bits_per_sample; - gint i_audio_channels; - gint i_audio_compression_ratio; - gint i_audio_quality; - gint i_rtjpeg_quality; - gint i_rtjpeg_luma_filter; - gint i_rtjpeg_chroma_filter; - gint i_lavc_bitrate; - gint i_lavc_qmin; - gint i_lavc_qmax; - gint i_lavc_maxqdiff; - gint64 i_seekable_offset; - gint64 i_keyframe_adjust_offset; - -} nuv_extended_header; - -typedef enum { - GST_NUV_DEMUX_START, - GST_NUV_DEMUX_HEADER_DATA, - GST_NUV_DEMUX_EXTRA_DATA, - GST_NUV_DEMUX_MPEG_DATA, - GST_NUV_DEMUX_EXTEND_HEADER, - GST_NUV_DEMUX_EXTEND_HEADER_DATA, - GST_NUV_DEMUX_FRAME_HEADER, - GST_NUV_DEMUX_MOVI, - GST_NUV_DEMUX_INVALID_DATA -} GstNuvDemuxState; - -typedef struct _GstNuvDemux { - GstElement parent; - - guint mode; - GstAdapter *adapter; - guint64 video_offset; - guint64 audio_offset; - - /* pads */ - - GstPad *sinkpad; - GstPad *src_video_pad; - GstPad *src_audio_pad; - gboolean first_video; - gboolean first_audio; - - /* NUV decoding state */ - GstNuvDemuxState state; - guint64 offset; - - /* Mpeg ExtraData */ - guint64 mpeg_data_size; - GstBuffer *mpeg_buffer; - - nuv_header *h; - nuv_extended_header *eh; - nuv_frame_header *fh; - - /* index */ - nuv_demux_index *index_entries; - guint index_size; - guint64 index_offset; - guint current_entry; - -} GstNuvDemux; - -typedef struct _GstNuvDemuxClass { - GstElementClass parent_class; -} GstNuvDemuxClass; - -GType gst_nuv_demux_get_type (void); - -G_END_DECLS - -#endif /* __GST_NUV_DEMUX_H__ */ diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/typefind/Makefile.am --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst-plugins-nuvdemux/typefind/Makefile.am Thu Nov 09 19:45:27 2006 +0000 @@ -0,0 +1,14 @@ +plugin_LTLIBRARIES = libgsttypefindfunctions.la + +libgsttypefindfunctions_la_SOURCES = \ + gsttypefindfunctions.c + +libgsttypefindfunctions_la_CFLAGS = \ + $(GST_CFLAGS) + +libgsttypefindfunctions_la_LDFLAGS = \ + $(GST_PLUGIN_LDFLAGS) \ + $(GST_BASE_LIBS) + +libgsttypefindfunctions_la_LIBADD = \ + $(GST_LIBS) diff -r ce823be21819 -r 761a8bbe4278 gst-plugins-nuvdemux/typefind/gsttypefindfunctions.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gst-plugins-nuvdemux/typefind/gsttypefindfunctions.c Thu Nov 09 19:45:27 2006 +0000 @@ -0,0 +1,2808 @@ +/* GStreamer + * Copyright (C) 2003 Benjamin Otte + * + * gsttypefindfunctions.c: collection of various typefind functions + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include + +#include +#include +#include +#include +#include + +#include +#include + +GST_DEBUG_CATEGORY_STATIC (type_find_debug); +#define GST_CAT_DEFAULT type_find_debug + +/*** text/plain ***/ +static gboolean xml_check_first_element (GstTypeFind * tf, + const gchar * element, guint elen, gboolean strict); + + +static GstStaticCaps utf8_caps = GST_STATIC_CAPS ("text/plain"); + +#define UTF8_CAPS gst_static_caps_get(&utf8_caps) + +static gboolean +utf8_type_find_have_valid_utf8_at_offset (GstTypeFind * tf, guint64 offset, + GstTypeFindProbability * prob) +{ + guint8 *data; + + /* randomly decided values */ + guint min_size = 16; /* minimum size */ + guint size = 32 * 1024; /* starting size */ + guint probability = 95; /* starting probability */ + guint step = 10; /* how much we reduce probability in each + * iteration */ + + while (probability > step && size > min_size) { + data = gst_type_find_peek (tf, offset, size); + if (data) { + gchar *end; + gchar *start = (gchar *) data; + + if (g_utf8_validate (start, size, (const gchar **) &end) || (end - start + 4 > size)) { /* allow last char to be cut off */ + *prob = probability; + return TRUE; + } + *prob = 0; + return FALSE; + } + size /= 2; + probability -= step; + } + *prob = 0; + return FALSE; +} + +static void +utf8_type_find (GstTypeFind * tf, gpointer unused) +{ + GstTypeFindProbability start_prob, mid_prob; + guint64 length; + + /* leave xml to the xml typefinders */ + if (xml_check_first_element (tf, "", 0, TRUE)) + return; + + /* check beginning of stream */ + if (!utf8_type_find_have_valid_utf8_at_offset (tf, 0, &start_prob)) + return; + + GST_LOG ("start is plain text with probability of %u", start_prob); + + /* POSSIBLE is the highest probability we ever return if we can't + * probe into the middle of the file and don't know its length */ + + length = gst_type_find_get_length (tf); + if (length == 0 || length == (guint64) - 1) { + gst_type_find_suggest (tf, MIN (start_prob, GST_TYPE_FIND_POSSIBLE), + UTF8_CAPS); + return; + } + + if (length < 64 * 1024) { + gst_type_find_suggest (tf, start_prob, UTF8_CAPS); + return; + } + + /* check middle of stream */ + if (!utf8_type_find_have_valid_utf8_at_offset (tf, length / 2, &mid_prob)) + return; + + GST_LOG ("middle is plain text with probability of %u", mid_prob); + gst_type_find_suggest (tf, (start_prob + mid_prob) / 2, UTF8_CAPS); +} + +/*** text/uri-list ***/ + +static GstStaticCaps uri_caps = GST_STATIC_CAPS ("text/uri-list"); + +#define URI_CAPS (gst_static_caps_get(&uri_caps)) +#define BUFFER_SIZE 16 /* If the string is < 16 bytes we're screwed */ +#define INC_BUFFER { \ + pos++; \ + if (pos == BUFFER_SIZE) { \ + pos = 0; \ + offset += BUFFER_SIZE; \ + data = gst_type_find_peek (tf, offset, BUFFER_SIZE); \ + if (data == NULL) return; \ + } else { \ + data++; \ + } \ +} +static void +uri_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, BUFFER_SIZE); + guint pos = 0; + guint offset = 0; + + if (data) { + /* Search for # comment lines */ + while (*data == '#') { + /* Goto end of line */ + while (*data != '\n') { + INC_BUFFER; + } + + INC_BUFFER; + } + + if (!g_ascii_isalpha (*data)) { + /* Had a non alpha char - can't be uri-list */ + return; + } + + INC_BUFFER; + + while (g_ascii_isalnum (*data)) { + INC_BUFFER; + } + + if (*data != ':') { + /* First non alpha char is not a : */ + return; + } + + /* Get the next 2 bytes as well */ + data = gst_type_find_peek (tf, offset + pos, 3); + if (data == NULL) + return; + + if (data[1] != '/' && data[2] != '/') { + return; + } + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, URI_CAPS); + } +} + + +/*** application/xml **********************************************************/ + +#define XML_BUFFER_SIZE 16 +#define XML_INC_BUFFER { \ + pos++; \ + if (pos == XML_BUFFER_SIZE) { \ + pos = 0; \ + offset += XML_BUFFER_SIZE; \ + data = gst_type_find_peek (tf, offset, XML_BUFFER_SIZE); \ + if (data == NULL) return FALSE; \ + } else { \ + data++; \ + } \ +} + +static gboolean +xml_check_first_element (GstTypeFind * tf, const gchar * element, guint elen, + gboolean strict) +{ + gboolean got_xmldec; + guint8 *data; + guint offset = 0; + guint pos = 0; + + data = gst_type_find_peek (tf, 0, XML_BUFFER_SIZE); + if (!data) + return FALSE; + + /* look for the XMLDec + * see XML spec 2.8, Prolog and Document Type Declaration + * http://www.w3.org/TR/2004/REC-xml-20040204/#sec-prolog-dtd */ + got_xmldec = (memcmp (data, "", 6) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, HTML_CAPS); + } + } +} + +/*** video/x-fli ***/ + +static GstStaticCaps flx_caps = GST_STATIC_CAPS ("video/x-fli"); + +#define FLX_CAPS gst_static_caps_get(&flx_caps) +static void +flx_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 134); + + if (data) { + /* check magic and the frame type of the first frame */ + if ((data[4] == 0x11 || data[4] == 0x12 || + data[4] == 0x30 || data[4] == 0x44) && + data[5] == 0xaf && + ((data[132] == 0x00 || data[132] == 0xfa) && data[133] == 0xf1)) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, FLX_CAPS); + } + return; + } + data = gst_type_find_peek (tf, 0, 6); + if (data) { + /* check magic only */ + if ((data[4] == 0x11 || data[4] == 0x12 || + data[4] == 0x30 || data[4] == 0x44) && data[5] == 0xaf) { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, FLX_CAPS); + } + return; + } +} + +/*** application/x-id3 ***/ + +static GstStaticCaps id3_caps = GST_STATIC_CAPS ("application/x-id3"); + +#define ID3_CAPS gst_static_caps_get(&id3_caps) +static void +id3v2_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 10); + + if (data && memcmp (data, "ID3", 3) == 0 && + data[3] != 0xFF && data[4] != 0xFF && + (data[6] & 0x80) == 0 && (data[7] & 0x80) == 0 && + (data[8] & 0x80) == 0 && (data[9] & 0x80) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, ID3_CAPS); + } +} + +static void +id3v1_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, -128, 3); + + if (data && memcmp (data, "TAG", 3) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, ID3_CAPS); + } +} + +/*** application/x-ape ***/ + +static GstStaticCaps apetag_caps = GST_STATIC_CAPS ("application/x-apetag"); + +#define APETAG_CAPS gst_static_caps_get(&apetag_caps) +static void +apetag_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data; + + /* APEv1/2 at start of file */ + data = gst_type_find_peek (tf, 0, 8); + if (data && !memcmp (data, "APETAGEX", 8)) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, APETAG_CAPS); + return; + } + + /* APEv1/2 at end of file */ + data = gst_type_find_peek (tf, -32, 8); + if (data && !memcmp (data, "APETAGEX", 8)) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, APETAG_CAPS); + return; + } +} + +/*** audio/x-ttafile ***/ + +static GstStaticCaps tta_caps = GST_STATIC_CAPS ("audio/x-ttafile"); + +#define TTA_CAPS gst_static_caps_get(&tta_caps) +static void +tta_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 3); + + if (data) { + if (memcmp (data, "TTA", 3) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, TTA_CAPS); + return; + } + } +} + +/*** audio/mpeg version 2, 4 ***/ + +static GstStaticCaps aac_caps = GST_STATIC_CAPS ("audio/mpeg, " + "mpegversion = (int) { 2, 4 }, framed = (bool) false"); +#define AAC_CAPS (gst_static_caps_get(&aac_caps)) +#define AAC_AMOUNT (4096) +static void +aac_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, AAC_AMOUNT); + gint snc; + + /* detect adts header or adif header. + * The ADIF header is 4 bytes, that should be OK. The ADTS header, on + * the other hand, is 14 bits only, so we require one valid frame with + * again a valid syncpoint on the next one (28 bits) for certainty. We + * require 4 kB, which is quite a lot, since frames are generally 200-400 + * bytes. + */ + if (data) { + gint n; + + for (n = 0; n < AAC_AMOUNT - 3; n++) { + snc = GST_READ_UINT16_BE (&data[n]); + if ((snc & 0xfff6) == 0xfff0) { + /* ADTS header - find frame length */ + gint len; + + GST_DEBUG ("Found one ADTS syncpoint at offset 0x%x, tracing next...", + n); + if (AAC_AMOUNT - n < 5) { + GST_DEBUG ("Not enough data to parse ADTS header"); + break; + } + len = ((data[n + 3] & 0x03) << 11) | + (data[n + 4] << 3) | ((data[n + 5] & 0xe0) >> 5); + if (n + len + 2 >= AAC_AMOUNT) { + GST_DEBUG ("Next frame is not within reach"); + break; + } else if (len == 0) { + continue; + } + + snc = GST_READ_UINT16_BE (&data[n + len]); + if ((snc & 0xfff6) == 0xfff0) { + gint mpegversion = (data[n + 1] & 0x08) ? 2 : 4; + GstCaps *caps = gst_caps_new_simple ("audio/mpeg", + "framed", G_TYPE_BOOLEAN, FALSE, + "mpegversion", G_TYPE_INT, mpegversion, + NULL); + + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, caps); + gst_caps_unref (caps); + + GST_DEBUG ("Found ADTS-%d syncpoint at offset 0x%x (framelen %u)", + mpegversion, n, len); + break; + } + + GST_DEBUG ("No next frame found... (should be at 0x%x)", n + len); + } else if (!memcmp (&data[n], "ADIF", 4)) { + /* ADIF header */ + GstCaps *caps = gst_caps_new_simple ("audio/mpeg", + "framed", G_TYPE_BOOLEAN, FALSE, + "mpegversion", G_TYPE_INT, 4, + NULL); + + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, caps); + gst_caps_unref (caps); + } + } + } +} + +/*** audio/mpeg version 1 ***/ + +/* + * The chance that random data is identified as a valid mp3 header is 63 / 2^18 + * (0.024%) per try. This makes the function for calculating false positives + * 1 - (1 - ((63 / 2 ^18) ^ GST_MP3_TYPEFIND_MIN_HEADERS)) ^ buffersize) + * This has the following probabilities of false positives: + * datasize MIN_HEADERS + * (bytes) 1 2 3 4 + * 4096 62.6% 0.02% 0% 0% + * 16384 98% 0.09% 0% 0% + * 1 MiB 100% 5.88% 0% 0% + * 1 GiB 100% 100% 1.44% 0% + * 1 TiB 100% 100% 100% 0.35% + * This means that the current choice (3 headers by most of the time 4096 byte + * buffers is pretty safe for now. + * + * The max. size of each frame is 1440 bytes, which means that for N frames to + * be detected, we need 1440 * GST_MP3_TYPEFIND_MIN_HEADERS + 3 bytes of data. + * Assuming we step into the stream right after the frame header, this + * means we need 1440 * (GST_MP3_TYPEFIND_MIN_HEADERS + 1) - 1 + 3 bytes + * of data (5762) to always detect any mp3. + */ + +static const guint mp3types_bitrates[2][3][16] = + { {{0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448,}, + {0, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384,}, + {0, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320,}}, +{{0, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256,}, + {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160,}, + {0, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160,}}, +}; + +static const guint mp3types_freqs[3][3] = { {11025, 12000, 8000}, +{22050, 24000, 16000}, +{44100, 48000, 32000} +}; + +static inline guint +mp3_type_frame_length_from_header (guint32 header, guint * put_layer, + guint * put_channels, guint * put_bitrate, guint * put_samplerate, + gboolean * may_be_free_format, gint possible_free_framelen) +{ + guint bitrate, layer, length, mode, samplerate, version, channels; + + if ((header & 0xffe00000) != 0xffe00000) + return 0; + + /* we don't need extension, copyright, original or + * emphasis for the frame length */ + header >>= 6; + + /* mode */ + mode = header & 0x3; + header >>= 3; + + /* padding */ + length = header & 0x1; + header >>= 1; + + /* sampling frequency */ + samplerate = header & 0x3; + if (samplerate == 3) + return 0; + header >>= 2; + + /* bitrate index */ + bitrate = header & 0xF; + if (bitrate == 0 && possible_free_framelen == -1) { + GST_LOG ("Possibly a free format mp3 - signalling"); + *may_be_free_format = TRUE; + } + if (bitrate == 15 || (bitrate == 0 && possible_free_framelen == -1)) + return 0; + + /* ignore error correction, too */ + header >>= 5; + + /* layer */ + layer = 4 - (header & 0x3); + if (layer == 4) + return 0; + header >>= 2; + + /* version 0=MPEG2.5; 2=MPEG2; 3=MPEG1 */ + version = header & 0x3; + if (version == 1) + return 0; + + /* lookup */ + channels = (mode == 3) ? 1 : 2; + samplerate = mp3types_freqs[version > 0 ? version - 1 : 0][samplerate]; + if (bitrate == 0) { + if (layer == 1) { + length *= 4; + length += possible_free_framelen; + bitrate = length * samplerate / 48000; + } else { + length += possible_free_framelen; + bitrate = length * samplerate / + ((layer == 3 && version != 3) ? 72000 : 144000); + } + } else { + /* calculating */ + bitrate = mp3types_bitrates[version == 3 ? 0 : 1][layer - 1][bitrate]; + if (layer == 1) { + length = ((12000 * bitrate / samplerate) + length) * 4; + } else { + length += ((layer == 3 + && version != 3) ? 72000 : 144000) * bitrate / samplerate; + } + } + + GST_LOG ("mp3typefind: calculated mp3 frame length of %u bytes", length); + GST_LOG + ("mp3typefind: samplerate = %u - bitrate = %u - layer = %u - version = %u" + " - channels = %u", samplerate, bitrate, layer, version, channels); + + if (put_layer) + *put_layer = layer; + if (put_channels) + *put_channels = channels; + if (put_bitrate) + *put_bitrate = bitrate; + if (put_samplerate) + *put_samplerate = samplerate; + + return length; +} + + +static GstStaticCaps mp3_caps = GST_STATIC_CAPS ("audio/mpeg, " + "mpegversion = (int) 1, layer = (int) [ 1, 3 ]"); +#define MP3_CAPS (gst_static_caps_get(&mp3_caps)) +/* + * random values for typefinding + * if no more data is available, we will return a probability of + * (found_headers/TRY_HEADERS) * (MAXIMUM * (TRY_SYNC - bytes_skipped) + * / TRY_SYNC) + * if found_headers >= MIN_HEADERS + */ +#define GST_MP3_TYPEFIND_MIN_HEADERS (2) +#define GST_MP3_TYPEFIND_TRY_HEADERS (5) +#define GST_MP3_TYPEFIND_TRY_SYNC (GST_TYPE_FIND_MAXIMUM * 100) /* 10kB */ +#define GST_MP3_TYPEFIND_SYNC_SIZE (2048) +#define GST_MP3_WRONG_HEADER (10) + +static void +mp3_type_find_at_offset (GstTypeFind * tf, guint64 start_off, + guint * found_layer, GstTypeFindProbability * found_prob) +{ + guint8 *data = NULL; + guint8 *data_end = NULL; + guint size; + guint64 skipped; + gint last_free_offset = -1; + gint last_free_framelen = -1; + gboolean headerstart = TRUE; + + *found_layer = 0; + *found_prob = 0; + + size = 0; + skipped = 0; + while (skipped < GST_MP3_TYPEFIND_TRY_SYNC) { + if (size <= 0) { + size = GST_MP3_TYPEFIND_SYNC_SIZE * 2; + do { + size /= 2; + data = gst_type_find_peek (tf, skipped + start_off, size); + } while (size > 10 && !data); + if (!data) + break; + data_end = data + size; + } + if (*data == 0xFF) { + guint8 *head_data = NULL; + guint layer = 0, bitrate, samplerate, channels; + guint found = 0; /* number of valid headers found */ + guint64 offset = skipped; + + while (found < GST_MP3_TYPEFIND_TRY_HEADERS) { + guint32 head; + guint length; + guint prev_layer = 0, prev_bitrate = 0; + guint prev_channels = 0, prev_samplerate = 0; + gboolean free = FALSE; + + if ((gint64) (offset - skipped + 4) >= 0 && + data + offset - skipped + 4 < data_end) { + head_data = data + offset - skipped; + } else { + head_data = gst_type_find_peek (tf, offset + start_off, 4); + } + if (!head_data) + break; + head = GST_READ_UINT32_BE (head_data); + if (!(length = mp3_type_frame_length_from_header (head, &layer, + &channels, &bitrate, &samplerate, &free, + last_free_framelen))) { + if (free) { + if (last_free_offset == -1) + last_free_offset = offset; + else { + last_free_framelen = offset - last_free_offset; + offset = last_free_offset; + continue; + } + } else { + last_free_framelen = -1; + } + + /* Mark the fact that we didn't find a valid header at the beginning */ + if (found == 0) + headerstart = FALSE; + + GST_LOG ("%d. header at offset %" G_GUINT64_FORMAT + " (0x%" G_GINT64_MODIFIER "x) was not an mp3 header " + "(possibly-free: %s)", found + 1, start_off + offset, + start_off + offset, free ? "yes" : "no"); + break; + } + if ((prev_layer && prev_layer != layer) || + /* (prev_bitrate && prev_bitrate != bitrate) || <-- VBR */ + (prev_samplerate && prev_samplerate != samplerate) || + (prev_channels && prev_channels != channels)) { + /* this means an invalid property, or a change, which might mean + * that this is not a mp3 but just a random bytestream. It could + * be a freaking funky encoded mp3 though. We'll just not count + * this header*/ + prev_layer = layer; + prev_bitrate = bitrate; + prev_channels = channels; + prev_samplerate = samplerate; + } else { + found++; + GST_LOG ("found %d. header at offset %" G_GUINT64_FORMAT " (0x%" + G_GINT64_MODIFIER "X)", found, start_off + offset, + start_off + offset); + } + offset += length; + } + g_assert (found <= GST_MP3_TYPEFIND_TRY_HEADERS); + if (found == GST_MP3_TYPEFIND_TRY_HEADERS || + (found >= GST_MP3_TYPEFIND_MIN_HEADERS && head_data == NULL)) { + /* we can make a valid guess */ + guint probability = found * GST_TYPE_FIND_MAXIMUM * + (GST_MP3_TYPEFIND_TRY_SYNC - skipped) / + GST_MP3_TYPEFIND_TRY_HEADERS / GST_MP3_TYPEFIND_TRY_SYNC; + + if (!headerstart + && ((probability - GST_MP3_WRONG_HEADER) > GST_TYPE_FIND_MINIMUM)) + probability -= GST_MP3_WRONG_HEADER; + if (probability < GST_TYPE_FIND_MINIMUM) + probability = GST_TYPE_FIND_MINIMUM; + if (start_off > 0) + probability /= 2; + + GST_INFO + ("audio/mpeg calculated %u = %u * %u / %u * (%u - %" + G_GUINT64_FORMAT ") / %u", probability, GST_TYPE_FIND_MAXIMUM, + found, GST_MP3_TYPEFIND_TRY_HEADERS, GST_MP3_TYPEFIND_TRY_SYNC, + (guint64) skipped, GST_MP3_TYPEFIND_TRY_SYNC); + /* make sure we're not id3 tagged */ + head_data = gst_type_find_peek (tf, -128, 3); + if (head_data && (memcmp (head_data, "TAG", 3) == 0)) { + probability = 0; + } + g_assert (probability <= GST_TYPE_FIND_MAXIMUM); + + *found_prob = probability; + if (probability > 0) + *found_layer = layer; + return; + } + } + data++; + skipped++; + size--; + } +} + +static void +mp3_type_find (GstTypeFind * tf, gpointer unused) +{ + GstTypeFindProbability prob, mid_prob; + guint8 *data; + guint layer, mid_layer; + guint64 length; + + mp3_type_find_at_offset (tf, 0, &layer, &prob); + length = gst_type_find_get_length (tf); + + if (length == 0 || length == (guint64) - 1) { + if (prob != 0) + goto suggest; + return; + } + + /* if we're pretty certain already, skip the additional check */ + if (prob >= GST_TYPE_FIND_LIKELY) + goto suggest; + + mp3_type_find_at_offset (tf, length / 2, &mid_layer, &mid_prob); + + if (mid_prob > 0) { + if (prob == 0) { + GST_LOG ("detected audio/mpeg only in the middle (p=%u)", mid_prob); + layer = mid_layer; + prob = mid_prob; + goto suggest; + } + + if (layer != mid_layer) { + GST_WARNING ("audio/mpeg layer discrepancy: %u vs. %u", layer, mid_layer); + return; /* FIXME: or should we just go with the one in the middle? */ + } + + /* detected mpeg audio both in middle of the file and at the start */ + prob = (prob + mid_prob) / 2; + goto suggest; + } + + /* let's see if there's a valid header right at the start */ + data = gst_type_find_peek (tf, 0, 4); /* use min. frame size? */ + if (data && mp3_type_frame_length_from_header (GST_READ_UINT32_BE (data), + &layer, NULL, NULL, NULL, NULL, 0) != 0) { + if (prob == 0) + prob = GST_TYPE_FIND_POSSIBLE - 10; + else + prob = MAX (GST_TYPE_FIND_POSSIBLE - 10, prob + 10); + } + + if (prob > 0) + goto suggest; + + return; + +suggest: + { + GstCaps *caps; + + g_assert (layer > 0); + + caps = gst_caps_make_writable (MP3_CAPS); + gst_structure_set (gst_caps_get_structure (caps, 0), "layer", + G_TYPE_INT, layer, NULL); + gst_type_find_suggest (tf, prob, caps); + gst_caps_unref (caps); + return; + } +} + +/*** audio/x-musepack ***/ + +static GstStaticCaps musepack_caps = GST_STATIC_CAPS ("audio/x-musepack"); + +#define MUSEPACK_CAPS (gst_static_caps_get(&musepack_caps)) +static void +musepack_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data && memcmp (data, "MP+", 3) == 0) { + if ((data[3] & 0x7f) == 7) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MUSEPACK_CAPS); + } else { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY + 10, MUSEPACK_CAPS); + } + } +} + +/*** audio/x-ac3 ***/ +static GstStaticCaps ac3_caps = GST_STATIC_CAPS ("audio/x-ac3"); + +#define AC3_CAPS (gst_static_caps_get(&ac3_caps)) + +static void +ac3_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 2); + + if (data) { + /* pretty lame method... */ + if (data[0] == 0x0b && data[1] == 0x77) { + gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, AC3_CAPS); + return; + } + } +} + +/*** wavpack ***/ + +static GstStaticCaps wavpack_caps = +GST_STATIC_CAPS ("audio/x-wavpack, framed = (boolean) false"); + +#define WAVPACK_CAPS (gst_static_caps_get(&wavpack_caps)) + +static GstStaticCaps wavpack_correction_caps = +GST_STATIC_CAPS ("audio/x-wavpack-correction, framed = (boolean) false"); + +#define WAVPACK_CORRECTION_CAPS (gst_static_caps_get(&wavpack_correction_caps)) + +static void +wavpack_type_find (GstTypeFind * tf, gpointer unused) +{ + guint64 offset; + guint32 blocksize; + guint8 *data; + + data = gst_type_find_peek (tf, 0, 32); + if (!data) + return; + + if (data[0] != 'w' || data[1] != 'v' || data[2] != 'p' || data[3] != 'k') + return; + + /* Note: wavpack blocks can be fairly large (easily 60-110k), possibly + * larger than the max. limits imposed by certain typefinding elements + * like id3demux or apedemux, so typefinding is most likely only going to + * work in pull-mode */ + blocksize = GST_READ_UINT32_LE (data + 4); + GST_LOG ("wavpack header, blocksize=0x%04x", blocksize); + offset = 32; + while (offset < 32 + blocksize) { + guint32 sublen; + + /* get chunk header */ + GST_LOG ("peeking at chunk at offset 0x%04x", (guint) offset); + data = gst_type_find_peek (tf, offset, 4); + if (data == NULL) + break; + sublen = ((guint32) data[1]) << 1; + if (data[0] & 0x80) { + sublen |= (((guint32) data[2]) << 9) | (((guint32) data[3]) << 17); + sublen += 1 + 3; /* id + length */ + } else { + sublen += 1 + 1; /* id + length */ + } + if (sublen > blocksize - offset + 32) { + GST_LOG ("chunk length too big (%u > %" G_GUINT64_FORMAT ")", sublen, + blocksize - offset); + break; + } + if ((data[0] & 0x20) == 0) { + switch (data[0] & 0x0f) { + case 0xa: /* ID_WV_BITSTREAM */ + case 0xc: /* ID_WVX_BITSTREAM */ + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, WAVPACK_CAPS); + return; + case 0xb: /* ID_WVC_BITSTREAM */ + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, + WAVPACK_CORRECTION_CAPS); + return; + default: + break; + } + } + offset += sublen; + } +} + +/*** multipart/x-mixed-replace mimestream ***/ + +static GstStaticCaps multipart_caps = +GST_STATIC_CAPS ("multipart/x-mixed-replace"); +#define MULTIPART_CAPS gst_static_caps_get(&multipart_caps) + +/* multipart/x-mixed replace is: + * --[\r]\n + * [\r]\nContent-type:[\r]\n */ +static void +multipart_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data; + guint8 *x; + +#define MULTIPART_MAX_BOUNDARY_OFFSET 16 + data = gst_type_find_peek (tf, 0, MULTIPART_MAX_BOUNDARY_OFFSET); + if (!data) + return; + + for (x = data; + x - data < MULTIPART_MAX_BOUNDARY_OFFSET - 2 && g_ascii_isspace (*x); + x++); + if (x[0] != '-' || x[1] != '-') + return; + + /* Could be okay, peek what should be enough for a complete header */ +#define MULTIPART_MAX_HEADER_SIZE 256 + data = gst_type_find_peek (tf, 0, MULTIPART_MAX_HEADER_SIZE); + if (!data) + return; + + for (x = data; x - data < MULTIPART_MAX_HEADER_SIZE - 14; x++) { + if (!isascii (*x)) { + return; + } + if (*x == '\n' && + !g_ascii_strncasecmp ("content-type:", (gchar *) x + 1, 13)) { + GstCaps *caps = gst_caps_copy (MULTIPART_CAPS); + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, caps); + gst_caps_unref (caps); + return; + } + } +} + +/*** video/mpeg systemstream ***/ +static GstStaticCaps mpeg_sys_caps = GST_STATIC_CAPS ("video/mpeg, " + "systemstream = (boolean) true, mpegversion = (int) [ 1, 2 ]"); + +#define MPEG_SYS_CAPS gst_static_caps_get(&mpeg_sys_caps) +#define IS_MPEG_HEADER(data) ((((guint8 *)(data))[0] == 0x00) && \ + (((guint8 *)(data))[1] == 0x00) && \ + (((guint8 *)(data))[2] == 0x01)) + +#define IS_MPEG_PACK_HEADER(data) (IS_MPEG_HEADER (data) && \ + (((guint8 *)(data))[3] == 0xBA)) + +#define IS_MPEG_SYSTEM_HEADER(data) (IS_MPEG_HEADER (data) && \ + (((guint8 *)(data))[3] == 0xBB)) +#define IS_MPEG_PACKET_HEADER(data) (IS_MPEG_HEADER (data) && \ + ((((guint8 *)(data))[3] & 0x80) == 0x80)) + +#define IS_MPEG_PES_HEADER(data) (IS_MPEG_HEADER (data) && \ + ((((guint8 *)(data))[3] == 0xE0) || \ + (((guint8 *)(data))[3] == 0xC0) || \ + (((guint8 *)(data))[3] == 0xBD))) + +static void +mpeg2_sys_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 5); + gint mpegversion; + + if (data && IS_MPEG_PACK_HEADER (data)) { + if ((data[4] & 0xC0) == 0x40) { + /* type 2 */ + mpegversion = 2; + goto suggest; + } else if ((data[4] & 0xF0) == 0x20) { + mpegversion = 1; + goto suggest; + } + } else if (data && IS_MPEG_PES_HEADER (data)) { + /* PES stream */ + mpegversion = 2; + goto suggest; + } + + return; +suggest: + { + GstCaps *caps = gst_caps_copy (MPEG_SYS_CAPS); + + gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion", + G_TYPE_INT, mpegversion, NULL); + gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, caps); + gst_caps_unref (caps); + } +}; + +/* ATTENTION: ugly return value: + * 0 - invalid data + * 1 - not enough data + * anything else - size until next package + */ +static guint +mpeg1_parse_header (GstTypeFind * tf, guint64 offset) +{ + guint8 *data = gst_type_find_peek (tf, offset, 4); + guint size; + + if (!data) { + GST_LOG ("couldn't get MPEG header bytes"); + return 1; + } + + if (data[0] != 0 || data[1] != 0 || data[2] != 1) { + GST_LOG ("no sync"); + return 0; + } + offset += 4; + + GST_LOG ("sync %02x", data[3]); + + switch (data[3]) { + case 0xBA: /* pack header */ + data = gst_type_find_peek (tf, offset, 8); + if (!data) { + GST_LOG ("couldn't get MPEG pack header bytes"); + return 1; + } + size = 12; + /* check marker bits */ + if ((data[0] & 0xF1) != 0x21 || + (data[2] & 0x01) != 0x01 || + (data[4] & 0x01) != 0x01 || + (data[5] & 0x80) != 0x80 || (data[7] & 0x01) != 0x01) { + GST_LOG ("wrong marker bits"); + return 0; + } + break; + + case 0xB9: /* ISO end code */ + size = 4; + break; + + case 0xBB: /* system header */ + data = gst_type_find_peek (tf, offset, 2); + if (!data) { + GST_LOG ("couldn't get MPEG pack header bytes"); + return 1; + } + size = GST_READ_UINT16_BE (data) + 6; + offset += 2; + data = gst_type_find_peek (tf, offset, size - 6); + if (!data) { + GST_LOG ("couldn't get MPEG pack header bytes"); + return 1; + } + /* check marker bits */ + if ((data[0] & 0x80) != 0x80 || + (data[2] & 0x01) != 0x01 || (data[4] & 0x20) != 0x20) { + GST_LOG ("wrong marker bits"); + return 0; + } + /* check stream marker bits */ + for (offset = 6; offset < (size - 6); offset += 3) { + if (data[offset] <= 0xBB || (data[offset + 1] & 0xC0) != 0xC0) { + GST_LOG ("wrong marker bits"); + return 0; + } + } + break; + + default: + if (data[3] < 0xB9) + return 0; + data = gst_type_find_peek (tf, offset, 2); + if (!data) { + GST_LOG ("couldn't get MPEG pack header bytes"); + return 1; + } + size = GST_READ_UINT16_BE (data) + 6; + /* FIXME: we could check PTS/DTS marker bits here... (bit overkill) */ + break; + } + + return size; +} + +/* calculation of possibility to identify random data as mpeg systemstream: + * bits that must match in header detection: 32 (or more) + * chance that random data is identifed: 1/2^32 + * chance that GST_MPEG_TYPEFIND_TRY_HEADERS headers are identified: + * 1/2^(32*GST_MPEG_TYPEFIND_TRY_HEADERS) + * chance that this happens in GST_MPEG_TYPEFIND_TRY_SYNC bytes: + * 1-(1+1/2^(32*GST_MPEG_TYPEFIND_TRY_HEADERS)^GST_MPEG_TYPEFIND_TRY_SYNC) + * for current values: + * 1-(1+1/2^(32*4)^101024) + * = + */ +#define GST_MPEG_TYPEFIND_TRY_HEADERS 4 +#define GST_MPEG_TYPEFIND_TRY_SYNC (100 * 1024) /* 100kB */ +#define GST_MPEG_TYPEFIND_SYNC_SIZE 2048 +static void +mpeg1_sys_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = NULL; + guint size = 0; + guint64 skipped = 0; + GstCaps *caps; + + while (skipped < GST_MPEG_TYPEFIND_TRY_SYNC) { + if (size < 4) { + data = gst_type_find_peek (tf, skipped, GST_MPEG_TYPEFIND_SYNC_SIZE); + if (!data) + break; + size = GST_MPEG_TYPEFIND_SYNC_SIZE; + } + if (IS_MPEG_PACK_HEADER (data)) { + /* found packet start code */ + guint found = 0; + guint packet_size = 0; + guint64 offset = skipped; + + while (found < GST_MPEG_TYPEFIND_TRY_HEADERS) { + packet_size = mpeg1_parse_header (tf, offset); + if (packet_size <= 1) + break; + offset += packet_size; + found++; + } + g_assert (found <= GST_MPEG_TYPEFIND_TRY_HEADERS); + if (found == GST_MPEG_TYPEFIND_TRY_HEADERS || packet_size == 1) { + GST_LOG ("suggesting mpeg1 system steeam"); + caps = gst_caps_copy (MPEG_SYS_CAPS); + gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion", + G_TYPE_INT, 1, NULL); + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 1, caps); + gst_caps_unref (caps); + return; + } + } + data++; + skipped++; + size--; + } +} + +/** video/mpegts Transport Stream **/ +static GstStaticCaps mpegts_caps = GST_STATIC_CAPS ("video/mpegts, " + "systemstream = (boolean) true, packetsize = (int) [ 188, 208 ]"); +#define MPEGTS_CAPS gst_static_caps_get(&mpegts_caps) + +#define GST_MPEGTS_TYPEFIND_MIN_HEADERS 4 +#define GST_MPEGTS_TYPEFIND_MAX_HEADERS 10 +#define GST_MPEGTS_MAX_PACKET_SIZE 204 +#define GST_MPEGTS_TYPEFIND_SYNC_SIZE \ + (GST_MPEGTS_TYPEFIND_MIN_HEADERS * GST_MPEGTS_MAX_PACKET_SIZE) +#define GST_MPEGTS_TYPEFIND_MAX_SYNC \ + (GST_MPEGTS_TYPEFIND_MAX_HEADERS * GST_MPEGTS_MAX_PACKET_SIZE) + +#define MPEGTS_HDR_SIZE 4 +#define IS_MPEGTS_HEADER(data) (((data)[0] == 0x47) && \ + (((data)[1] & 0x80) == 0x00) && \ + (((data)[3] & 0x10) == 0x10)) + +/* Helper function to search ahead at intervals of packet_size for mpegts + * headers */ +gint +mpeg_ts_probe_headers (GstTypeFind * tf, guint64 offset, gint packet_size) +{ + /* We always enter this function having found at least one header already */ + gint found = 1; + guint8 *data = NULL; + + while (found < GST_MPEGTS_TYPEFIND_MAX_HEADERS) { + offset += packet_size; + + data = gst_type_find_peek (tf, offset, MPEGTS_HDR_SIZE); + if (data == NULL || !IS_MPEGTS_HEADER (data)) + return found; + + found++; + } + + return found; +} + +/* Try and detect at least 4 packets in at most 10 packets worth of + * data. Need to try several possible packet sizes */ +static void +mpeg_ts_type_find (GstTypeFind * tf, gpointer unused) +{ + /* TS packet sizes to test: normal, DVHS packet size and + * FEC with 16 or 20 byte codes packet size. */ + const gint pack_sizes[] = { 188, 192, 204, 208 }; + const gint n_pack_sizes = sizeof (pack_sizes) / sizeof (gint); + + guint8 *data = NULL; + guint size = 0; + guint64 skipped = 0; + + while (skipped < GST_MPEGTS_TYPEFIND_MAX_SYNC) { + if (size < MPEGTS_HDR_SIZE) { + data = gst_type_find_peek (tf, skipped, GST_MPEGTS_TYPEFIND_SYNC_SIZE); + if (!data) + break; + size = GST_MPEGTS_TYPEFIND_SYNC_SIZE; + } + + /* Have at least MPEGTS_HDR_SIZE bytes at this point */ + if (IS_MPEGTS_HEADER (data)) { + gint p; + + for (p = 0; p < n_pack_sizes; p++) { + gint found; + + /* Probe ahead at size pack_sizes[p] */ + found = mpeg_ts_probe_headers (tf, skipped, pack_sizes[p]); + if (found >= GST_MPEGTS_TYPEFIND_MIN_HEADERS) { + gint probability; + GstCaps *caps = gst_caps_copy (MPEGTS_CAPS); + + gst_structure_set (gst_caps_get_structure (caps, 0), "packetsize", + G_TYPE_INT, pack_sizes[p], NULL); + + /* found at least 4 headers. 10 headers = MAXIMUM probability. + * Arbitrarily, I assigned 10% probability for each header we + * found, 40% -> 100% */ + + probability = 10 * MIN (found, 10); + + gst_type_find_suggest (tf, probability, caps); + gst_caps_unref (caps); + return; + } + } + } + data++; + skipped++; + size--; + } +} + +/*** video/mpeg MPEG-4 elementary video stream ***/ + +static GstStaticCaps mpeg4_video_caps = GST_STATIC_CAPS ("video/mpeg, " + "systemstream = (boolean) false, mpegversion = 4"); +#define MPEG4_VIDEO_CAPS gst_static_caps_get(&mpeg4_video_caps) +static void +mpeg4_video_type_find (GstTypeFind * tf, gpointer unused) +{ + /* Header consists of: a series of start codes (00 00 01 xx), some with + * associated data. + * Optionally, we start with a visual_object_sequence_start_code, followed by + * (optionally) visual_object_start_code), then the mandatory + * video_object_start_code and video_object_layer_start_code) + */ + guint8 *data = NULL; + int offset = 0; + gboolean seen_vos = FALSE; + + while (TRUE) { + data = gst_type_find_peek (tf, offset, 4); + if (data && data[0] == 0 && data[1] == 0 && data[2] == 1) { + int sc = data[3]; + + if (sc == 0xB0) /* visual_object_sequence_start_code */ + offset += 5; + else if (sc == 0xB5) /* visual_object_start_code */ + offset += 5; + else if (sc >= 0x00 && sc <= 0x1F) { /* video_object_start_code */ + offset += 4; + seen_vos = TRUE; + } else if (sc >= 0x20 && sc <= 0x2F) { /* video_object_layer_start_code */ + if (seen_vos) { + GstCaps *caps = gst_caps_copy (MPEG4_VIDEO_CAPS); + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 1, caps); + gst_caps_unref (caps); + return; + } + } else + return; + } else + return; + } +} + +/*** video/mpeg video stream ***/ + +static GstStaticCaps mpeg_video_caps = GST_STATIC_CAPS ("video/mpeg, " + "systemstream = (boolean) false"); +#define MPEG_VIDEO_CAPS gst_static_caps_get(&mpeg_video_caps) +static void +mpeg_video_type_find (GstTypeFind * tf, gpointer unused) +{ + static const guint8 sequence_header[] = { 0x00, 0x00, 0x01, 0xb3 }; + guint8 *data = NULL; + + data = gst_type_find_peek (tf, 0, 8); + + if (data && memcmp (data, sequence_header, 4) == 0) { + GstCaps *caps = gst_caps_copy (MPEG_VIDEO_CAPS); + + gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion", + G_TYPE_INT, 1, NULL); + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 1, caps); + gst_caps_unref (caps); + } +} + +/* + * Idea is the same as MPEG system stream typefinding: We check each + * byte of the stream to see if - from that point on - the stream + * matches a predefined set of marker bits as defined in the MPEG + * video specs. + * + * I'm sure someone will do a chance calculation here too. + */ + +#define GST_MPEGVID_TYPEFIND_TRY_PICTURES 6 +#define GST_MPEGVID_TYPEFIND_TRY_SYNC (100 * 1024) /* 100 kB */ +#define GST_MPEGVID_TYPEFIND_SYNC_SIZE 2048 + +static void +mpeg_video_stream_type_find (GstTypeFind * tf, gpointer unused) +{ + gint size = 0, found = 0; + guint64 skipped = 0; + guint8 *data = NULL; + + while (1) { + if (found >= GST_MPEGVID_TYPEFIND_TRY_PICTURES) { + GstCaps *caps = gst_caps_copy (MPEG_VIDEO_CAPS); + + gst_structure_set (gst_caps_get_structure (caps, 0), "mpegversion", + G_TYPE_INT, 1, NULL); + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM - 2, caps); + gst_caps_unref (caps); + return; + } + + if (skipped > GST_MPEGVID_TYPEFIND_TRY_SYNC) + break; + + if (size < 5) { + data = gst_type_find_peek (tf, skipped, GST_MPEGVID_TYPEFIND_SYNC_SIZE); + if (!data) + break; + size = GST_MPEGVID_TYPEFIND_SYNC_SIZE; + } + + /* are we a sequence (0xB3) or GOP (0xB8) header? */ + if (data[0] == 0x0 && data[1] == 0x0 && data[2] == 0x1 && + (data[3] == 0xB3 || data[3] == 0xB8)) { + size -= 8; + data += 8; + skipped += 8; + if (data[3] == 0xB3) + continue; + else if (size < 4) { + data = gst_type_find_peek (tf, skipped, GST_MPEGVID_TYPEFIND_SYNC_SIZE); + size = GST_MPEGVID_TYPEFIND_SYNC_SIZE; + if (!data) + break; + } + /* else, we should now see an image */ + } + + /* image header (and, when found, slice header) */ + if (data[0] == 0x0 && data[1] == 0x0 && data[2] == 0x1 && data[4] == 0x0) { + size -= 8; + data += 8; + skipped += 8; + if (size < 5) { + data = gst_type_find_peek (tf, skipped, GST_MPEGVID_TYPEFIND_SYNC_SIZE); + size = GST_MPEGVID_TYPEFIND_SYNC_SIZE; + if (!data) + break; + } + if ((data[0] == 0x0 && data[1] == 0x0 && + data[2] == 0x1 && data[3] == 0x1) || + (data[1] == 0x0 && data[2] == 0x0 && + data[3] == 0x1 && data[4] == 0x1)) { + size -= 4; + data += 4; + skipped += 4; + found += 1; + continue; + } + } + + size--; + data++; + skipped++; + } +} + +/*** audio/x-aiff ***/ + +static GstStaticCaps aiff_caps = GST_STATIC_CAPS ("audio/x-aiff"); + +#define AIFF_CAPS gst_static_caps_get(&aiff_caps) +static void +aiff_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data && memcmp (data, "FORM", 4) == 0) { + data += 8; + if (memcmp (data, "AIFF", 4) == 0 || memcmp (data, "AIFC", 4) == 0) + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, AIFF_CAPS); + } +} + +/*** audio/x-aiff ***/ + +static GstStaticCaps svx_caps = GST_STATIC_CAPS ("audio/x-svx"); + +#define SVX_CAPS gst_static_caps_get(&svx_caps) +static void +svx_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data && memcmp (data, "FORM", 4) == 0) { + data += 8; + if (memcmp (data, "8SVX", 4) == 0 || memcmp (data, "16SV", 4) == 0) + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SVX_CAPS); + } +} + +/*** audio/x-shorten ***/ + +static GstStaticCaps shn_caps = GST_STATIC_CAPS ("audio/x-shorten"); + +#define SHN_CAPS gst_static_caps_get(&shn_caps) +static void +shn_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data && memcmp (data, "ajkg", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SHN_CAPS); + } + data = gst_type_find_peek (tf, -8, 8); + if (data && memcmp (data, "SHNAMPSK", 8) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SHN_CAPS); + } +} + +/*** application/x-ape ***/ + +static GstStaticCaps ape_caps = GST_STATIC_CAPS ("application/x-ape"); + +#define APE_CAPS gst_static_caps_get(&ape_caps) +static void +ape_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data && memcmp (data, "MAC ", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY + 10, APE_CAPS); + } +} + +/*** ISO FORMATS ***/ + +/*** audio/x-m4a ***/ + +static GstStaticCaps m4a_caps = GST_STATIC_CAPS ("audio/x-m4a"); + +#define M4A_CAPS (gst_static_caps_get(&m4a_caps)) +static void +m4a_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 4, 8); + + if (data && + (memcmp (data, "ftypM4A ", 8) == 0 || + memcmp (data, "ftypmp42", 8) == 0)) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, M4A_CAPS); + } +} + +/*** application/x-3gp ***/ + +/* The Q is there because variables can't start with a number. */ + + +static GstStaticCaps q3gp_caps = GST_STATIC_CAPS ("application/x-3gp"); + +#define Q3GP_CAPS (gst_static_caps_get(&q3gp_caps)) +static void +q3gp_type_find (GstTypeFind * tf, gpointer unused) +{ + + guint32 ftyp_size = 0; + gint offset = 0; + guint8 *data = NULL; + + if ((data = gst_type_find_peek (tf, 0, 12)) == NULL) { + return; + } + + data += 4; + if (memcmp (data, "ftyp", 4) != 0) { + return; + } + + /* check major brand */ + data += 4; + if (memcmp (data, "3gp", 3) == 0 || + memcmp (data, "3gr", 3) == 0 || + memcmp (data, "3gs", 3) == 0 || memcmp (data, "3gg", 3) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, Q3GP_CAPS); + return; + } + + /* check compatible brands */ + if ((data = gst_type_find_peek (tf, 0, 4)) != NULL) { + ftyp_size = GST_READ_UINT32_BE (data); + } + for (offset = 16; offset < ftyp_size; offset += 4) { + if ((data = gst_type_find_peek (tf, offset, 3)) == NULL) { + break; + } + if (memcmp (data, "3gp", 3) == 0 || + memcmp (data, "3gr", 3) == 0 || + memcmp (data, "3gs", 3) == 0 || memcmp (data, "3gg", 3) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, Q3GP_CAPS); + break; + } + } + + return; + +} + +/*** video/quicktime ***/ + +static GstStaticCaps qt_caps = GST_STATIC_CAPS ("video/quicktime"); + +#define QT_CAPS gst_static_caps_get(&qt_caps) +#define STRNCMP(x,y,z) (strncmp ((char*)(x), (char*)(y), z)) + +static void +qt_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data; + guint tip = 0; + guint64 offset = 0; + guint64 size; + + while ((data = gst_type_find_peek (tf, offset, 8)) != NULL) { + /* box/atom types that are in common with ISO base media file format */ + if (STRNCMP (&data[4], "moov", 4) == 0 || + STRNCMP (&data[4], "mdat", 4) == 0 || + STRNCMP (&data[4], "ftyp", 4) == 0 || + STRNCMP (&data[4], "free", 4) == 0 || + STRNCMP (&data[4], "uuid", 4) == 0 || + STRNCMP (&data[4], "skip", 4) == 0) { + if (tip == 0) { + tip = GST_TYPE_FIND_LIKELY; + } else { + tip = GST_TYPE_FIND_NEARLY_CERTAIN; + } + } + /* other box/atom types, apparently quicktime specific */ + else if (STRNCMP (&data[4], "pnot", 4) == 0 || + STRNCMP (&data[4], "PICT", 4) == 0 || + STRNCMP (&data[4], "wide", 4) == 0 || + STRNCMP (&data[4], "prfl", 4) == 0) { + tip = GST_TYPE_FIND_MAXIMUM; + break; + } else { + tip = 0; + break; + } + size = GST_READ_UINT32_BE (data); + if (size == 1) { + guint8 *sizedata; + + sizedata = gst_type_find_peek (tf, offset + 8, 8); + if (sizedata == NULL) + break; + + size = GST_READ_UINT64_BE (sizedata); + } else { + if (size < 8) + break; + } + offset += size; + } + if (tip > 0) { + gst_type_find_suggest (tf, tip, QT_CAPS); + } +}; + + +/*** image/x-quicktime ***/ + +static GstStaticCaps qtif_caps = GST_STATIC_CAPS ("image/x-quicktime"); + +#define QTIF_CAPS gst_static_caps_get(&qtif_caps) + +/* how many atoms we check before we give up */ +#define QTIF_MAXROUNDS 25 + +static void +qtif_type_find (GstTypeFind * tf, gpointer unused) +{ + const guint8 *data; + gboolean found_idsc = FALSE; + gboolean found_idat = FALSE; + guint64 offset = 0; + guint rounds = 0; + + while ((data = gst_type_find_peek (tf, offset, 8)) != NULL) { + guint64 size; + + size = GST_READ_UINT32_BE (data); + if (size == 1) { + const guint8 *sizedata; + + sizedata = gst_type_find_peek (tf, offset + 8, 8); + if (sizedata == NULL) + break; + + size = GST_READ_UINT64_BE (sizedata); + } + if (size < 8) + break; + + if (STRNCMP (data + 4, "idsc", 4) == 0) + found_idsc = TRUE; + if (STRNCMP (data + 4, "idat", 4) == 0) + found_idat = TRUE; + + if (found_idsc && found_idat) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, QTIF_CAPS); + return; + } + + offset += size; + if (++rounds > QTIF_MAXROUNDS) + break; + } + + if (found_idsc || found_idat) { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, QTIF_CAPS); + return; + } +}; + +/*** audio/x-mod ***/ + +static GstStaticCaps mod_caps = GST_STATIC_CAPS ("audio/x-mod"); + +#define MOD_CAPS gst_static_caps_get(&mod_caps) +/* FIXME: M15 CheckType to do */ +static void +mod_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data; + + /* MOD */ + if ((data = gst_type_find_peek (tf, 1080, 4)) != NULL) { + /* Protracker and variants */ + if ((memcmp (data, "M.K.", 4) == 0) || (memcmp (data, "M!K!", 4) == 0) || + /* Star Tracker */ + (memcmp (data, "FLT", 3) == 0 && isdigit (data[3])) || + (memcmp (data, "EXO", 3) == 0 && isdigit (data[3])) || + /* Oktalyzer (Amiga) */ + (memcmp (data, "OKTA", 4) == 0) || + /* Oktalyser (Atari) */ + (memcmp (data, "CD81", 4) == 0) || + /* Fasttracker */ + (memcmp (data + 1, "CHN", 3) == 0 && isdigit (data[0])) || + /* Fasttracker or Taketracker */ + (memcmp (data + 2, "CH", 2) == 0 && isdigit (data[0]) + && isdigit (data[1])) || (memcmp (data + 2, "CN", 2) == 0 + && isdigit (data[0]) && isdigit (data[1]))) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } + /* XM */ + if ((data = gst_type_find_peek (tf, 0, 38)) != NULL) { + if (memcmp (data, "Extended Module: ", 17) == 0 && data[37] == 0x1A) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } + /* OKT */ + if (data || (data = gst_type_find_peek (tf, 0, 8)) != NULL) { + if (memcmp (data, "OKTASONG", 8) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } + if (data || (data = gst_type_find_peek (tf, 0, 4)) != NULL) { + /* 669 */ + if ((memcmp (data, "if", 2) == 0) || (memcmp (data, "JN", 2) == 0)) { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS); + return; + } + /* AMF */ + if ((memcmp (data, "AMF", 3) == 0 && data[3] > 10 && data[3] < 14) || + /* IT */ + (memcmp (data, "IMPM", 4) == 0) || + /* MED */ + (memcmp (data, "MMD0", 4) == 0) || (memcmp (data, "MMD1", 4) == 0) || + /* MTM */ + (memcmp (data, "MTM", 3) == 0)) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + /* DSM */ + if (memcmp (data, "RIFF", 4) == 0) { + guint8 *data2 = gst_type_find_peek (tf, 8, 4); + + if (data2) { + if (memcmp (data2, "DSMF", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } + } + /* FAM */ + if (memcmp (data, "FAM\xFE", 4) == 0) { + guint8 *data2 = gst_type_find_peek (tf, 44, 3); + + if (data2) { + if (memcmp (data2, "compare", 3) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } else { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS); + return; + } + } + /* GDM */ + if (memcmp (data, "GDM\xFE", 4) == 0) { + guint8 *data2 = gst_type_find_peek (tf, 71, 4); + + if (data2) { + if (memcmp (data2, "GMFS", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } else { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, MOD_CAPS); + return; + } + } + } + /* IMF */ + if ((data = gst_type_find_peek (tf, 60, 4)) != NULL) { + if (memcmp (data, "IM10", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } + /* S3M */ + if ((data = gst_type_find_peek (tf, 44, 4)) != NULL) { + if (memcmp (data, "SCRM", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MOD_CAPS); + return; + } + } +} + +/*** application/x-shockwave-flash ***/ + +static GstStaticCaps swf_caps = +GST_STATIC_CAPS ("application/x-shockwave-flash"); +#define SWF_CAPS (gst_static_caps_get(&swf_caps)) +static void +swf_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data && (data[0] == 'F' || data[0] == 'C') && + data[1] == 'W' && data[2] == 'S') { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SWF_CAPS); + } +} + +/*** image/jpeg ***/ + +static GstStaticCaps jpeg_caps = GST_STATIC_CAPS ("image/jpeg"); + +#define JPEG_CAPS (gst_static_caps_get(&jpeg_caps)) +static void +jpeg_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 10); + guint8 header[2] = { 0xFF, 0xD8 }; + + if (data && memcmp (data, header, 2) == 0) { + if (memcmp (data + 6, "JFIF", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, JPEG_CAPS); + } else if (memcmp (data + 6, "Exif", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, JPEG_CAPS); + } else { + gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, JPEG_CAPS); + } + } +} + +/*** image/bmp ***/ + +static GstStaticCaps bmp_caps = GST_STATIC_CAPS ("image/bmp"); + +#define BMP_CAPS (gst_static_caps_get(&bmp_caps)) +static void +bmp_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 18); + + if (data && memcmp (data, "BM", 2) == 0) { + if ((data[14] == 0x0C || + data[14] == 0x28 || + data[14] == 0xF0) && + data[15] == 0 && data[16] == 0 && data[17] == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, BMP_CAPS); + } + } +} + +/*** image/tiff ***/ +static GstStaticCaps tiff_caps = GST_STATIC_CAPS ("image/tiff, " + "endianness = (int) { BIG_ENDIAN, LITTLE_ENDIAN }"); +#define TIFF_CAPS (gst_static_caps_get(&tiff_caps)) +static GstStaticCaps tiff_be_caps = GST_STATIC_CAPS ("image/tiff, " + "endianness = (int) BIG_ENDIAN"); +#define TIFF_BE_CAPS (gst_static_caps_get(&tiff_be_caps)) +static GstStaticCaps tiff_le_caps = GST_STATIC_CAPS ("image/tiff, " + "endianness = (int) LITTLE_ENDIAN"); +#define TIFF_LE_CAPS (gst_static_caps_get(&tiff_le_caps)) +static void +tiff_type_find (GstTypeFind * tf, gpointer ununsed) +{ + guint8 *data = gst_type_find_peek (tf, 0, 8); + guint8 le_header[4] = { 0x49, 0x49, 0x2A, 0x00 }; + guint8 be_header[4] = { 0x4D, 0x4D, 0x00, 0x2A }; + + if (data) { + if (memcmp (data, le_header, 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, TIFF_LE_CAPS); + } else if (memcmp (data, be_header, 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, TIFF_BE_CAPS); + } + } +} + +static GstStaticCaps sds_caps = GST_STATIC_CAPS ("audio/x-sds"); + +#define SDS_CAPS (gst_static_caps_get(&sds_caps)) +static void +sds_type_find (GstTypeFind * tf, gpointer ununsed) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + guint8 mask[4] = { 0xFF, 0xFF, 0x80, 0xFF }; + guint8 match[4] = { 0xF0, 0x7E, 0, 0x01 }; + gint x; + + if (data) { + for (x = 0; x < 4; x++) { + if ((data[x] & mask[x]) != match[x]) { + return; + } + } + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SDS_CAPS); + } +} + +static GstStaticCaps ircam_caps = GST_STATIC_CAPS ("audio/x-ircam"); + +#define IRCAM_CAPS (gst_static_caps_get(&ircam_caps)) +static void +ircam_type_find (GstTypeFind * tf, gpointer ununsed) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + guint8 mask[4] = { 0xFF, 0xFF, 0xF8, 0xFF }; + guint8 match[4] = { 0x64, 0xA3, 0x00, 0x00 }; + gint x; + gboolean matched = TRUE; + + if (!data) { + return; + } + for (x = 0; x < 4; x++) { + if ((data[x] & mask[x]) != match[x]) { + matched = FALSE; + } + } + if (matched) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, IRCAM_CAPS); + return; + } + /* now try the reverse version */ + matched = TRUE; + for (x = 0; x < 4; x++) { + if ((data[x] & mask[3 - x]) != match[3 - x]) { + matched = FALSE; + } + } +} + + +/*** video/x-matroska ***/ +static GstStaticCaps matroska_caps = GST_STATIC_CAPS ("video/x-matroska"); + +#define MATROSKA_CAPS (gst_static_caps_get(&matroska_caps)) +static void +matroska_type_find (GstTypeFind * tf, gpointer ununsed) +{ + /* 4 bytes for EBML ID, 1 byte for header length identifier */ + guint8 *data = gst_type_find_peek (tf, 0, 4 + 1); + gint len_mask = 0x80, size = 1, n = 1, total; + guint8 probe_data[] = { 'm', 'a', 't', 'r', 'o', 's', 'k', 'a' }; + + if (!data) + return; + + /* ebml header? */ + if (data[0] != 0x1A || data[1] != 0x45 || data[2] != 0xDF || data[3] != 0xA3) + return; + + /* length of header */ + total = data[4]; + while (size <= 8 && !(total & len_mask)) { + size++; + len_mask >>= 1; + } + if (size > 8) + return; + total &= (len_mask - 1); + while (n < size) + total = (total << 8) | data[4 + n++]; + + /* get new data for full header, 4 bytes for EBML ID, + * EBML length tag and the actual header */ + data = gst_type_find_peek (tf, 0, 4 + size + total); + if (!data) + return; + + /* the header must contain the document type 'matroska'. For now, + * we don't parse the whole header but simply check for the + * availability of that array of characters inside the header. + * Not fully fool-proof, but good enough. */ + for (n = 4 + size; n <= 4 + size + total - sizeof (probe_data); n++) + if (!memcmp (&data[n], probe_data, sizeof (probe_data))) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, MATROSKA_CAPS); + break; + } +} + +/*** video/x-dv ***/ + +static GstStaticCaps dv_caps = GST_STATIC_CAPS ("video/x-dv, " + "systemstream = (boolean) true"); +#define DV_CAPS (gst_static_caps_get(&dv_caps)) +static void +dv_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data; + + data = gst_type_find_peek (tf, 0, 5); + + /* check for DIF and DV flag */ + if (data && (data[0] == 0x1f) && (data[1] == 0x07) && (data[2] == 0x00) && + ((data[4] & 0x01) == 0)) { + gchar *format; + GstCaps *caps = gst_caps_copy (DV_CAPS); + + if (data[3] & 0x80) { + format = "PAL"; + } else { + format = "NTSC"; + } + gst_structure_set (gst_caps_get_structure (caps, 0), "format", + G_TYPE_STRING, format, NULL); + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, caps); + gst_caps_unref (caps); + } +} + + +/*** application/ogg and application/x-annodex ***/ +static GstStaticCaps ogg_caps = GST_STATIC_CAPS ("application/ogg"); +static GstStaticCaps annodex_caps = GST_STATIC_CAPS ("application/x-annodex"); + +#define OGGANX_CAPS (gst_static_caps_get(&annodex_caps)) + +static void +ogganx_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if ((data != NULL) && (memcmp (data, "OggS", 4) == 0)) { + + /* Check for an annodex fishbone header */ + data = gst_type_find_peek (tf, 28, 8); + if (data && memcmp (data, "fishead\0", 8) == 0) + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGGANX_CAPS); + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, + gst_static_caps_get (&ogg_caps)); + } +} + +/*** audio/x-vorbis ***/ +static GstStaticCaps vorbis_caps = GST_STATIC_CAPS ("audio/x-vorbis"); + +#define VORBIS_CAPS (gst_static_caps_get(&vorbis_caps)) +static void +vorbis_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 30); + + if (data) { + guint blocksize_0; + guint blocksize_1; + + /* 1 byte packet type (identification=0x01) + 6 byte string "vorbis" + 4 byte vorbis version */ + if (memcmp (data, "\001vorbis\000\000\000\000", 11) != 0) + return; + data += 11; + /* 1 byte channels must be != 0 */ + if (data[0] == 0) + return; + data++; + /* 4 byte samplerate must be != 0 */ + if (*((guint32 *) data) == 0) + return; + data += 16; + /* blocksize checks */ + blocksize_0 = data[0] & 0x0F; + blocksize_1 = (data[0] & 0xF0) >> 4; + if (blocksize_0 > blocksize_1) + return; + if (blocksize_0 < 6 || blocksize_0 > 13) + return; + if (blocksize_1 < 6 || blocksize_1 > 13) + return; + data++; + /* framing bit */ + if ((data[0] & 0x01) != 1) + return; + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, VORBIS_CAPS); + } +} + +/*** video/x-theora ***/ + +static GstStaticCaps theora_caps = GST_STATIC_CAPS ("video/x-theora"); + +#define THEORA_CAPS (gst_static_caps_get(&theora_caps)) +static void +theora_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 7); //42); + + if (data) { + if (data[0] != 0x80) + return; + if (memcmp (&data[1], "theora", 6) != 0) + return; + /* FIXME: make this more reliable when specs are out */ + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, THEORA_CAPS); + } +} + +/*** application/x-ogm-video or audio***/ + +static GstStaticCaps ogmvideo_caps = +GST_STATIC_CAPS ("application/x-ogm-video"); +#define OGMVIDEO_CAPS (gst_static_caps_get(&ogmvideo_caps)) +static void +ogmvideo_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 9); + + if (data) { + if (memcmp (data, "\001video\000\000\000", 9) != 0) + return; + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGMVIDEO_CAPS); + } +} + +static GstStaticCaps ogmaudio_caps = +GST_STATIC_CAPS ("application/x-ogm-audio"); +#define OGMAUDIO_CAPS (gst_static_caps_get(&ogmaudio_caps)) +static void +ogmaudio_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 9); + + if (data) { + if (memcmp (data, "\001audio\000\000\000", 9) != 0) + return; + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGMAUDIO_CAPS); + } +} + +static GstStaticCaps ogmtext_caps = GST_STATIC_CAPS ("application/x-ogm-text"); + +#define OGMTEXT_CAPS (gst_static_caps_get(&ogmtext_caps)) +static void +ogmtext_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 9); + + if (data) { + if (memcmp (data, "\001text\000\000\000\000", 9) != 0) + return; + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGMTEXT_CAPS); + } +} + +/*** audio/x-speex ***/ + +static GstStaticCaps speex_caps = GST_STATIC_CAPS ("audio/x-speex"); + +#define SPEEX_CAPS (gst_static_caps_get(&speex_caps)) +static void +speex_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 80); + + if (data) { + /* 8 byte string "Speex " + 24 byte speex version string + int */ + if (memcmp (data, "Speex ", 8) != 0) + return; + data += 32; + + /* 4 byte header size >= 80 */ + if (GST_READ_UINT32_LE (data) < 80) + return; + data += 4; + + /* 4 byte sample rate <= 48000 */ + if (GST_READ_UINT32_LE (data) > 48000) + return; + data += 4; + + /* currently there are only 3 speex modes. */ + if (GST_READ_UINT32_LE (data) > 3) + return; + data += 12; + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, SPEEX_CAPS); + } +} + +/*** application/x-ogg-skeleton ***/ +static GstStaticCaps ogg_skeleton_caps = +GST_STATIC_CAPS ("application/x-ogg-skeleton, parsed=(boolean)FALSE"); +#define OGG_SKELETON_CAPS (gst_static_caps_get(&ogg_skeleton_caps)) +static void +oggskel_type_find (GstTypeFind * tf, gpointer private) +{ + guint8 *data = gst_type_find_peek (tf, 0, 12); + + if (data) { + /* 8 byte string "fishead\0" for the ogg skeleton stream */ + if (memcmp (data, "fishead\0", 8) != 0) + return; + data += 8; + + /* Require that the header contains version 3.0 */ + if (GST_READ_UINT16_LE (data) != 3) + return; + data += 2; + if (GST_READ_UINT16_LE (data) != 0) + return; + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, OGG_SKELETON_CAPS); + } +} + +static GstStaticCaps cmml_caps = GST_STATIC_CAPS ("text/x-cmml"); + +#define CMML_CAPS (gst_static_caps_get(&cmml_caps)) +static void +cmml_type_find (GstTypeFind * tf, gpointer private) +{ + /* Header is 12 bytes minimum (though we don't check the minor version */ + guint8 *data = gst_type_find_peek (tf, 0, 12); + + if (data) { + + /* 8 byte string "CMML\0\0\0\0" for the magic number */ + if (memcmp (data, "CMML\0\0\0\0", 8) != 0) + return; + data += 8; + + /* Require that the header contains at least version 2.0 */ + if (GST_READ_UINT16_LE (data) < 2) + return; + + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, CMML_CAPS); + } +} + +/*** application/x-tar ***/ + +static GstStaticCaps tar_caps = GST_STATIC_CAPS ("application/x-tar"); + +#define TAR_CAPS (gst_static_caps_get(&tar_caps)) +#define OLDGNU_MAGIC "ustar " /* 7 chars and a NUL */ +#define NEWGNU_MAGIC "ustar" /* 5 chars and a NUL */ +static void +tar_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 257, 8); + + /* of course we are not certain, but we don't want other typefind funcs + * to detect formats of files within the tar archive, e.g. mp3s */ + if (data) { + if (memcmp (data, OLDGNU_MAGIC, 8) == 0) { /* sic */ + gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, TAR_CAPS); + } else if (memcmp (data, NEWGNU_MAGIC, 6) == 0 && /* sic */ + g_ascii_isdigit (data[6]) && g_ascii_isdigit (data[7])) { + gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, TAR_CAPS); + } + } +} + +/*** application/x-ar ***/ + +static GstStaticCaps ar_caps = GST_STATIC_CAPS ("application/x-ar"); + +#define AR_CAPS (gst_static_caps_get(&ar_caps)) +static void +ar_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 24); + + if (data && memcmp (data, "!", 7) == 0) { + gint i; + + for (i = 7; i < 24; ++i) { + if (!g_ascii_isprint (data[i]) && data[i] != '\n') { + gst_type_find_suggest (tf, GST_TYPE_FIND_POSSIBLE, AR_CAPS); + } + } + + gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, AR_CAPS); + } +} + +/*** audio/x-au ***/ + +/* NOTE: we cannot replace this function with TYPE_FIND_REGISTER_START_WITH, + * as it is only possible to register one typefind factory per 'name' + * (which is in this case the caps), and the first one would be replaced by + * the second one. */ +static GstStaticCaps au_caps = GST_STATIC_CAPS ("audio/x-au"); + +#define AU_CAPS (gst_static_caps_get(&au_caps)) +static void +au_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data) { + if (memcmp (data, ".snd", 4) == 0 || memcmp (data, "dns.", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, AU_CAPS); + } + } +} + + +/*** video/x-nuv ***/ + +/* NOTE: we cannot replace this function with TYPE_FIND_REGISTER_START_WITH, + * as it is only possible to register one typefind factory per 'name' + * (which is in this case the caps), and the first one would be replaced by + * the second one. */ +static GstStaticCaps nuv_caps = GST_STATIC_CAPS ("video/x-nuv"); + +#define NUV_CAPS (gst_static_caps_get(&nuv_caps)) +static void +nuv_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 11); + + if (data) { + if (memcmp (data, "MythTVVideo", 11) == 0 + || memcmp (data, "NuppelVideo", 11) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, NUV_CAPS); + } + } +} + +/*** audio/x-paris ***/ +/* NOTE: do not replace this function with two TYPE_FIND_REGISTER_START_WITH */ +static GstStaticCaps paris_caps = GST_STATIC_CAPS ("audio/x-paris"); + +#define PARIS_CAPS (gst_static_caps_get(&paris_caps)) +static void +paris_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 4); + + if (data) { + if (memcmp (data, " paf", 4) == 0 || memcmp (data, "fap ", 4) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_MAXIMUM, PARIS_CAPS); + } + } +} + +/*** audio/iLBC-sh ***/ +/* NOTE: do not replace this function with two TYPE_FIND_REGISTER_START_WITH */ +static GstStaticCaps ilbc_caps = GST_STATIC_CAPS ("audio/iLBC-sh"); + +#define ILBC_CAPS (gst_static_caps_get(&ilbc_caps)) +static void +ilbc_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 8); + + if (data) { + if (memcmp (data, "#!iLBC30", 8) == 0 || memcmp (data, "#!iLBC20", 8) == 0) { + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, ILBC_CAPS); + } + } +} + +/*** application/x-ms-dos-executable ***/ + +static GstStaticCaps msdos_caps = +GST_STATIC_CAPS ("application/x-ms-dos-executable"); +#define MSDOS_CAPS (gst_static_caps_get(&msdos_caps)) +/* see http://www.madchat.org/vxdevl/papers/winsys/pefile/pefile.htm */ +static void +msdos_type_find (GstTypeFind * tf, gpointer unused) +{ + guint8 *data = gst_type_find_peek (tf, 0, 64); + + if (data && data[0] == 'M' && data[1] == 'Z' && + GST_READ_UINT16_LE (data + 8) == 4) { + guint32 pe_offset = GST_READ_UINT32_LE (data + 60); + + data = gst_type_find_peek (tf, pe_offset, 2); + if (data && data[0] == 'P' && data[1] == 'E') { + gst_type_find_suggest (tf, GST_TYPE_FIND_NEARLY_CERTAIN, MSDOS_CAPS); + } + } +} + +/*** application/x-mmsh ***/ + +static GstStaticCaps mmsh_caps = GST_STATIC_CAPS ("application/x-mmsh"); + +#define MMSH_CAPS gst_static_caps_get(&mmsh_caps) + +/* This is to recognise mssh-over-http */ +static void +mmsh_type_find (GstTypeFind * tf, gpointer unused) +{ + static const guint8 asf_marker[16] = { 0x30, 0x26, 0xb2, 0x75, 0x8e, 0x66, + 0xcf, 0x11, 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c + }; + + guint8 *data; + + data = gst_type_find_peek (tf, 0, 2 + 2 + 4 + 2 + 2 + 16); + if (data && data[0] == 0x24 && data[1] == 0x48 && + GST_READ_UINT16_LE (data + 2) > 2 + 2 + 4 + 2 + 2 + 16 && + memcmp (data + 2 + 2 + 4 + 2 + 2, asf_marker, 16) == 0) { + GstCaps *caps = gst_caps_copy (MMSH_CAPS); + + gst_type_find_suggest (tf, GST_TYPE_FIND_LIKELY, caps); + gst_caps_unref (caps); + return; + } +} + +/*** generic typefind for streams that have some data at a specific position***/ +typedef struct +{ + const guint8 *data; + guint size; + guint probability; + GstCaps *caps; +} +GstTypeFindData; + +static void +start_with_type_find (GstTypeFind * tf, gpointer private) +{ + GstTypeFindData *start_with = (GstTypeFindData *) private; + guint8 *data; + + GST_LOG ("trying to find mime type %s with the first %u bytes of data", + gst_structure_get_name (gst_caps_get_structure (start_with->caps, 0)), + start_with->size); + data = gst_type_find_peek (tf, 0, start_with->size); + if (data && memcmp (data, start_with->data, start_with->size) == 0) { + gst_type_find_suggest (tf, start_with->probability, start_with->caps); + } +} + +static void +sw_data_destroy (GstTypeFindData * sw_data) +{ + if (G_LIKELY (sw_data->caps != NULL)) + gst_caps_unref (sw_data->caps); + g_free (sw_data); +} + +#define TYPE_FIND_REGISTER_START_WITH(plugin,name,rank,ext,_data,_size,_probability)\ +G_BEGIN_DECLS{ \ + GstTypeFindData *sw_data = g_new (GstTypeFindData, 1); \ + sw_data->data = (const guint8 *)_data; \ + sw_data->size = _size; \ + sw_data->probability = _probability; \ + sw_data->caps = gst_caps_new_simple (name, NULL); \ + if (!gst_type_find_register (plugin, name, rank, start_with_type_find,\ + ext, sw_data->caps, sw_data, \ + (GDestroyNotify) (sw_data_destroy))) { \ + gst_caps_unref (sw_data->caps); \ + g_free (sw_data); \ + } \ +}G_END_DECLS + +/*** same for riff types ***/ + +static void +riff_type_find (GstTypeFind * tf, gpointer private) +{ + GstTypeFindData *riff_data = (GstTypeFindData *) private; + guint8 *data = gst_type_find_peek (tf, 0, 12); + + if (data && memcmp (data, "RIFF", 4) == 0) { + data += 8; + if (memcmp (data, riff_data->data, 4) == 0) + gst_type_find_suggest (tf, riff_data->probability, riff_data->caps); + } +} + +#define TYPE_FIND_REGISTER_RIFF(plugin,name,rank,ext,_data) \ +G_BEGIN_DECLS{ \ + GstTypeFindData *sw_data = g_new (GstTypeFindData, 1); \ + sw_data->data = (gpointer)_data; \ + sw_data->size = 4; \ + sw_data->probability = GST_TYPE_FIND_MAXIMUM; \ + sw_data->caps = gst_caps_new_simple (name, NULL); \ + if (!gst_type_find_register (plugin, name, rank, riff_type_find, \ + ext, sw_data->caps, sw_data, \ + (GDestroyNotify) (sw_data_destroy))) { \ + gst_caps_unref (sw_data->caps); \ + g_free (sw_data); \ + } \ +}G_END_DECLS + + + +/*** plugin initialization ***/ + +#define TYPE_FIND_REGISTER(plugin,name,rank,func,ext,caps,priv,notify) \ +G_BEGIN_DECLS{\ + if (!gst_type_find_register (plugin, name, rank, func, ext, caps, priv, notify))\ + return FALSE; \ +}G_END_DECLS +static gboolean +plugin_init (GstPlugin * plugin) +{ + /* can't initialize this via a struct as caps can't be statically initialized */ + + /* note: asx/wax/wmx are XML files, asf doesn't handle them */ + /* FIXME-0.11: these should be const, + this requires gstreamer/gst/gsttypefind::gst_type_find_register() + to have define the parameter as const + */ + static gchar *asf_exts[] = { "asf", "wm", "wma", "wmv", NULL }; + static gchar *au_exts[] = { "au", "snd", NULL }; + static gchar *avi_exts[] = { "avi", NULL }; + static gchar *cdxa_exts[] = { "dat", NULL }; + static gchar *flac_exts[] = { "flac", NULL }; + static gchar *flx_exts[] = { "flc", "fli", NULL }; + static gchar *id3_exts[] = + { "mp3", "mp2", "mp1", "mpga", "ogg", "flac", "tta", NULL }; + static gchar *apetag_exts[] = { "ape", "mpc", "wv", NULL }; /* and mp3 and wav? */ + static gchar *tta_exts[] = { "tta", NULL }; + static gchar *mod_exts[] = { "669", "amf", "dsm", "gdm", "far", "imf", + "it", "med", "mod", "mtm", "okt", "sam", + "s3m", "stm", "stx", "ult", "xm", NULL + }; + static gchar *mp3_exts[] = { "mp3", "mp2", "mp1", "mpga", NULL }; + static gchar *ac3_exts[] = { "ac3", NULL }; + static gchar *musepack_exts[] = { "mpc", NULL }; + static gchar *mpeg_sys_exts[] = { "mpe", "mpeg", "mpg", NULL }; + static gchar *mpeg_video_exts[] = { "mpv", "mpeg", "mpg", NULL }; + static gchar *mpeg_ts_exts[] = { "ts", NULL }; + static gchar *ogg_exts[] = { "anx", "ogg", "ogm", NULL }; + static gchar *qt_exts[] = { "mov", NULL }; + static gchar *qtif_exts[] = { "qif", "qtif", "qti", NULL }; + static gchar *rm_exts[] = { "ra", "ram", "rm", "rmvb", NULL }; + static gchar *swf_exts[] = { "swf", "swfl", NULL }; + static gchar *utf8_exts[] = { "txt", NULL }; + static gchar *wav_exts[] = { "wav", NULL }; + static gchar *aiff_exts[] = { "aiff", "aif", "aifc", NULL }; + static gchar *svx_exts[] = { "iff", "svx", NULL }; + static gchar *paris_exts[] = { "paf", NULL }; + static gchar *nist_exts[] = { "nist", NULL }; + static gchar *voc_exts[] = { "voc", NULL }; + static gchar *sds_exts[] = { "sds", NULL }; + static gchar *ircam_exts[] = { "sf", NULL }; + static gchar *w64_exts[] = { "w64", NULL }; + static gchar *shn_exts[] = { "shn", NULL }; + static gchar *ape_exts[] = { "ape", NULL }; + static gchar *uri_exts[] = { "ram", NULL }; + static gchar *smil_exts[] = { "smil", NULL }; + static gchar *html_exts[] = { "htm", "html", NULL }; + static gchar *xml_exts[] = { "xml", NULL }; + static gchar *jpeg_exts[] = { "jpg", "jpe", "jpeg", NULL }; + static gchar *gif_exts[] = { "gif", NULL }; + static gchar *png_exts[] = { "png", NULL }; + static gchar *bmp_exts[] = { "bmp", NULL }; + static gchar *tiff_exts[] = { "tif", "tiff", NULL }; + static gchar *matroska_exts[] = { "mkv", "mka", NULL }; + static gchar *mve_exts[] = { "mve", NULL }; + static gchar *dv_exts[] = { "dv", "dif", NULL }; + static gchar *amr_exts[] = { "amr", NULL }; + static gchar *ilbc_exts[] = { "ilbc", NULL }; + static gchar *sid_exts[] = { "sid", NULL }; + static gchar *xcf_exts[] = { "xcf", NULL }; + static gchar *mng_exts[] = { "mng", NULL }; + static gchar *jng_exts[] = { "jng", NULL }; + static gchar *xpm_exts[] = { "xpm", NULL }; + static gchar *ras_exts[] = { "ras", NULL }; + static gchar *bz2_exts[] = { "bz2", NULL }; + static gchar *gz_exts[] = { "gz", NULL }; + static gchar *zip_exts[] = { "zip", NULL }; + static gchar *compress_exts[] = { "Z", NULL }; + static gchar *m4a_exts[] = { "m4a", NULL }; + static gchar *q3gp_exts[] = { "3gp", NULL }; + static gchar *aac_exts[] = { "aac", NULL }; + static gchar *spc_exts[] = { "spc", NULL }; + static gchar *wavpack_exts[] = { "wv", "wvp", NULL }; + static gchar *wavpack_correction_exts[] = { "wvc", NULL }; + static gchar *rar_exts[] = { "rar", NULL }; + static gchar *tar_exts[] = { "tar", NULL }; + static gchar *ar_exts[] = { "a", NULL }; + static gchar *msdos_exts[] = { "dll", "exe", "ocx", "sys", "scr", + "msstyles", "cpl", NULL + }; + static gchar *flv_exts[] = { "flv", NULL }; + static gchar *m4v_exts[] = { "m4v", NULL }; + static gchar *nuv_exts[] = { "nuv", NULL }; + + GST_DEBUG_CATEGORY_INIT (type_find_debug, "typefindfunctions", + GST_DEBUG_FG_GREEN | GST_DEBUG_BG_RED, "generic type find functions"); + + /* must use strings, macros don't accept initializers */ + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-ms-asf", GST_RANK_SECONDARY, + asf_exts, + "\060\046\262\165\216\146\317\021\246\331\000\252\000\142\316\154", 16, + GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "audio/x-musepack", GST_RANK_PRIMARY, + musepack_type_find, musepack_exts, MUSEPACK_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-au", GST_RANK_MARGINAL, + au_type_find, au_exts, AU_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_RIFF (plugin, "video/x-msvideo", GST_RANK_PRIMARY, + avi_exts, "AVI "); + TYPE_FIND_REGISTER_RIFF (plugin, "video/x-cdxa", GST_RANK_PRIMARY, + cdxa_exts, "CDXA"); + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-vcd", GST_RANK_PRIMARY, + cdxa_exts, "\000\377\377\377\377\377\377\377\377\377\377\000", 12, + GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-flac", GST_RANK_PRIMARY, + flac_exts, "fLaC", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "video/x-fli", GST_RANK_MARGINAL, flx_type_find, + flx_exts, FLX_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-id3v2", GST_RANK_PRIMARY + 3, + id3v2_type_find, id3_exts, ID3_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-id3v1", GST_RANK_PRIMARY + 1, + id3v1_type_find, id3_exts, ID3_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-apetag", GST_RANK_PRIMARY + 2, + apetag_type_find, apetag_exts, APETAG_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-ttafile", GST_RANK_PRIMARY, + tta_type_find, tta_exts, TTA_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-mod", GST_RANK_SECONDARY, mod_type_find, + mod_exts, MOD_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/mpeg", GST_RANK_PRIMARY, mp3_type_find, + mp3_exts, MP3_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-ac3", GST_RANK_PRIMARY, ac3_type_find, + ac3_exts, AC3_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/mpeg1", GST_RANK_PRIMARY, + mpeg1_sys_type_find, mpeg_sys_exts, MPEG_SYS_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/mpeg2", GST_RANK_SECONDARY, + mpeg2_sys_type_find, mpeg_sys_exts, MPEG_SYS_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/mpegts", GST_RANK_PRIMARY, + mpeg_ts_type_find, mpeg_ts_exts, MPEGTS_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/ogg", GST_RANK_PRIMARY, + ogganx_type_find, ogg_exts, OGGANX_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/mpeg", GST_RANK_SECONDARY, + mpeg_video_type_find, mpeg_video_exts, MPEG_VIDEO_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/mpeg-stream", GST_RANK_MARGINAL, + mpeg_video_stream_type_find, mpeg_video_exts, MPEG_VIDEO_CAPS, NULL, + NULL); + TYPE_FIND_REGISTER (plugin, "video/mpeg4", GST_RANK_PRIMARY, + mpeg4_video_type_find, m4v_exts, MPEG_VIDEO_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/x-nuv", GST_RANK_SECONDARY, + nuv_type_find, nuv_exts, NUV_CAPS, NULL, NULL); + + /* ISO formats */ + TYPE_FIND_REGISTER (plugin, "audio/x-m4a", GST_RANK_PRIMARY, m4a_type_find, + m4a_exts, M4A_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-3gp", GST_RANK_PRIMARY, + q3gp_type_find, q3gp_exts, Q3GP_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/quicktime", GST_RANK_SECONDARY, + qt_type_find, qt_exts, QT_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "image/x-quicktime", GST_RANK_SECONDARY, + qtif_type_find, qtif_exts, QTIF_CAPS, NULL, NULL); + + TYPE_FIND_REGISTER (plugin, "text/html", GST_RANK_SECONDARY, html_type_find, + html_exts, HTML_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/vnd.rn-realmedia", + GST_RANK_SECONDARY, rm_exts, ".RMF", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-pn-realaudio", + GST_RANK_SECONDARY, rm_exts, ".ra\375", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "application/x-shockwave-flash", + GST_RANK_SECONDARY, swf_type_find, swf_exts, SWF_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-flv", GST_RANK_SECONDARY, + flv_exts, "FLV", 3, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "text/plain", GST_RANK_MARGINAL, utf8_type_find, + utf8_exts, UTF8_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "text/uri-list", GST_RANK_MARGINAL, uri_type_find, + uri_exts, URI_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/smil", GST_RANK_SECONDARY, + smil_type_find, smil_exts, SMIL_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/xml", GST_RANK_MARGINAL, + xml_type_find, xml_exts, GENERIC_XML_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_RIFF (plugin, "audio/x-wav", GST_RANK_PRIMARY, wav_exts, + "WAVE"); + TYPE_FIND_REGISTER (plugin, "audio/x-aiff", GST_RANK_SECONDARY, + aiff_type_find, aiff_exts, AIFF_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-svx", GST_RANK_SECONDARY, svx_type_find, + svx_exts, SVX_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-paris", GST_RANK_SECONDARY, + paris_type_find, paris_exts, PARIS_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-nist", GST_RANK_SECONDARY, + nist_exts, "NIST", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-voc", GST_RANK_SECONDARY, + voc_exts, "Creative", 8, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "audio/x-sds", GST_RANK_SECONDARY, sds_type_find, + sds_exts, SDS_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-ircam", GST_RANK_SECONDARY, + ircam_type_find, ircam_exts, IRCAM_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-w64", GST_RANK_SECONDARY, + w64_exts, "riff", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "audio/x-shorten", GST_RANK_SECONDARY, + shn_type_find, shn_exts, SHN_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ape", GST_RANK_SECONDARY, + ape_type_find, ape_exts, APE_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "image/jpeg", GST_RANK_PRIMARY, jpeg_type_find, + jpeg_exts, JPEG_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "image/gif", GST_RANK_PRIMARY, + gif_exts, "GIF8", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "image/png", GST_RANK_PRIMARY, + png_exts, "\211PNG\015\012\032\012", 8, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "image/bmp", GST_RANK_PRIMARY, bmp_type_find, + bmp_exts, BMP_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "image/tiff", GST_RANK_PRIMARY, tiff_type_find, + tiff_exts, TIFF_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/x-matroska", GST_RANK_PRIMARY, + matroska_type_find, matroska_exts, MATROSKA_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-mve", GST_RANK_SECONDARY, + mve_exts, "Interplay MVE File\032\000\032\000\000\001\063\021", 26, + GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "video/x-dv", GST_RANK_SECONDARY, dv_type_find, + dv_exts, DV_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-amr-nb-sh", GST_RANK_PRIMARY, + amr_exts, "#!AMR", 5, GST_TYPE_FIND_LIKELY); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-amr-wb-sh", GST_RANK_PRIMARY, + amr_exts, "#!AMR-WB", 7, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "audio/iLBC-sh", GST_RANK_PRIMARY, + ilbc_type_find, ilbc_exts, ILBC_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-sid", GST_RANK_MARGINAL, + sid_exts, "PSID", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-xcf", GST_RANK_SECONDARY, + xcf_exts, "gimp xcf", 8, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-mng", GST_RANK_SECONDARY, + mng_exts, "\212MNG\015\012\032\012", 8, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-jng", GST_RANK_SECONDARY, + jng_exts, "\213JNG\015\012\032\012", 8, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-xpixmap", GST_RANK_SECONDARY, + xpm_exts, "/* XPM */", 9, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "image/x-sun-raster", + GST_RANK_SECONDARY, ras_exts, "\131\246\152\225", 4, + GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-bzip", + GST_RANK_SECONDARY, bz2_exts, "BZh", 3, GST_TYPE_FIND_LIKELY); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-gzip", + GST_RANK_SECONDARY, gz_exts, "\037\213", 2, GST_TYPE_FIND_LIKELY); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/zip", GST_RANK_SECONDARY, + zip_exts, "PK\003\004", 4, GST_TYPE_FIND_LIKELY); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-compress", + GST_RANK_SECONDARY, compress_exts, "\037\235", 2, GST_TYPE_FIND_LIKELY); + TYPE_FIND_REGISTER (plugin, "audio/x-vorbis", GST_RANK_PRIMARY, + vorbis_type_find, NULL, VORBIS_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "video/x-theora", GST_RANK_PRIMARY, + theora_type_find, NULL, THEORA_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ogm-video", GST_RANK_PRIMARY, + ogmvideo_type_find, NULL, OGMVIDEO_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ogm-audio", GST_RANK_PRIMARY, + ogmaudio_type_find, NULL, OGMAUDIO_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ogm-text", GST_RANK_PRIMARY, + ogmtext_type_find, NULL, OGMTEXT_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-speex", GST_RANK_PRIMARY, + speex_type_find, NULL, SPEEX_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ogg-skeleton", GST_RANK_PRIMARY, + oggskel_type_find, NULL, OGG_SKELETON_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "text/x-cmml", GST_RANK_PRIMARY, cmml_type_find, + NULL, CMML_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-executable", + GST_RANK_MARGINAL, NULL, "\177ELF", 4, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "adts_mpeg_stream", GST_RANK_SECONDARY, + aac_type_find, aac_exts, AAC_CAPS, NULL, NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "audio/x-spc", GST_RANK_SECONDARY, + spc_exts, "SNES-SPC700 Sound File Data", 27, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "audio/x-wavpack", GST_RANK_SECONDARY, + wavpack_type_find, wavpack_exts, WAVPACK_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "audio/x-wavpack-correction", GST_RANK_SECONDARY, + wavpack_type_find, wavpack_correction_exts, WAVPACK_CORRECTION_CAPS, NULL, + NULL); + TYPE_FIND_REGISTER_START_WITH (plugin, "application/x-rar", + GST_RANK_SECONDARY, rar_exts, "Rar!", 4, GST_TYPE_FIND_LIKELY); + TYPE_FIND_REGISTER (plugin, "application/x-tar", GST_RANK_SECONDARY, + tar_type_find, tar_exts, TAR_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ar", GST_RANK_SECONDARY, + ar_type_find, ar_exts, AR_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-ms-dos-executable", + GST_RANK_SECONDARY, msdos_type_find, msdos_exts, MSDOS_CAPS, NULL, NULL); +#if 0 + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-dirac", + GST_RANK_PRIMARY, NULL, "BBCD", 4, GST_TYPE_FIND_MAXIMUM); +#endif + TYPE_FIND_REGISTER_START_WITH (plugin, "video/x-dirac", + GST_RANK_PRIMARY, NULL, "KW-DIRAC", 8, GST_TYPE_FIND_MAXIMUM); + TYPE_FIND_REGISTER (plugin, "multipart/x-mixed-replace", GST_RANK_SECONDARY, + multipart_type_find, NULL, MULTIPART_CAPS, NULL, NULL); + TYPE_FIND_REGISTER (plugin, "application/x-mmsh", GST_RANK_SECONDARY, + mmsh_type_find, NULL, MMSH_CAPS, NULL, NULL); + return TRUE; +} + +GST_PLUGIN_DEFINE (GST_VERSION_MAJOR, + GST_VERSION_MINOR, + "typefindfunctions", + "default typefind functions", + plugin_init, VERSION, "LGPL", "GStreamer Base Plug-ins CVS/prerelease", "Gstreamer CVS")