/* GStreamer

  * Copyright (C) <2006> Renato Araujo Oliveira Filho <renato.filho@indt.org.br>

  *                      Rosfran Borges <rosfran.borges@indt.org.br>

  *

  * 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 <gst/gst.h>

 #include <gst/base/gstadapter.h>

 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; 

   /* pads */

   GstPad        *sinkpad;

   GstPad        *src_video_pad;  

   GstPad        *src_audio_pad;

   /* NUV decoding state */

   GstNuvDemuxState state;

   guint64        offset;

   guint          last_time;

   /* 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;

   /* FIXME: change these fields to private struct */

   /* first data buffer received, should sent new_segment */

   gboolean      new_audio_segment;

   gboolean      new_video_segment;

 } GstNuvDemux;

 typedef struct _GstNuvDemuxClass {

   GstElementClass parent_class;

 } GstNuvDemuxClass;

 GType           gst_nuv_demux_get_type          (void);

 G_END_DECLS

 #endif /* __GST_NUV_DEMUX_H__ */