diff -r aa1f309ec686 -r 81f031485b52 gst-plugins-nuvdemux/typefind/gsttypefindfunctions.c --- a/gst-plugins-nuvdemux/typefind/gsttypefindfunctions.c Tue May 01 17:03:38 2007 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,2808 +0,0 @@ -/* 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")