/*****************************************************************************
* mp4.h : MP4 file input module for vlc
*****************************************************************************
- * Copyright (C) 2001 VideoLAN
- * $Id: mp4.h,v 1.5 2002/12/06 16:34:06 sam Exp $
+ * Copyright (C) 2001-2004 VideoLAN
+ * $Id: mp4.h,v 1.14 2004/01/25 20:05:28 hartman Exp $
* Authors: Laurent Aimar <fenrir@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
*****************************************************************************/
-
-/*****************************************************************************
- * Structure needed for decoder
- *****************************************************************************/
-typedef struct bitmapinfoheader_s
-{
- uint32_t i_size; /* size of header 40 + size of data follwoing this header */
- uint32_t i_width;
- uint32_t i_height;
- uint16_t i_planes;
- uint16_t i_bitcount;
- uint32_t i_compression;
- uint32_t i_sizeimage;
- uint32_t i_xpelspermeter;
- uint32_t i_ypelspermeter;
- uint32_t i_clrused;
- uint32_t i_clrimportant;
-} bitmapinfoheader_t;
-
-typedef struct waveformatex_s
-{
- uint16_t i_format;
- uint16_t i_channels;
- uint32_t i_samplepersec;
- uint32_t i_avgbytespersec;
- uint16_t i_blockalign;
- uint16_t i_bitspersample;
- uint16_t i_size; /* This give size of data
- imediatly following this header. */
-} waveformatex_t;
-
/*****************************************************************************
* Contain all information about a chunk
*****************************************************************************/
-typedef struct chunk_data_mp4_s
+typedef struct
{
uint64_t i_offset; /* absolute position of this chunk in the file */
uint32_t i_sample_description_index; /* index for SampleEntry to use */
/* TODO if needed add pts
but quickly *add* support for edts and seeking */
-} chunk_data_mp4_t;
+} mp4_chunk_t;
/*****************************************************************************
* Contain all needed information for read all track with vlc
*****************************************************************************/
-typedef struct track_data_mp4_s
+typedef struct
{
- int b_ok; /* The track is usable */
int i_track_ID; /* this should be unique */
+
+ int b_ok; /* The track is usable */
int b_enable; /* is the trak enable by default */
- int b_selected; /* is the trak being played */
- int i_cat; /* Type of the track, VIDEO_ES, AUDIO_ES, UNKNOWN_ES ... */
- char i_language[3];
+ vlc_bool_t b_selected; /* is the trak being played */
+
+ es_format_t fmt;
+ es_out_id_t *p_es;
/* display size only ! */
- int i_width;
- int i_height;
+ int i_width;
+ int i_height;
/* more internal data */
- uint64_t i_timescale; /* time scale for this track only */
+ uint64_t i_timescale; /* time scale for this track only */
+
+ /* elst */
+ int i_elst; /* current elst */
+ int64_t i_elst_time; /* current elst start time (in movie time scale)*/
+ MP4_Box_t *p_elst; /* elst (could be NULL) */
/* give the next sample to read, i_chunk is to find quickly where
the sample is located */
uint32_t i_chunk_count;
uint32_t i_sample_count;
- chunk_data_mp4_t *chunk; /* always defined for each chunk */
+ mp4_chunk_t *chunk; /* always defined for each chunk */
/* sample size, p_sample_size defined only if i_sample_size == 0
else i_sample_size is size for all sample */
uint32_t *p_sample_size; /* XXX perhaps add file offset if take
too much time to do sumations each time*/
- es_descriptor_t *p_es; /* vlc es for this track */
-
MP4_Box_t *p_stbl; /* will contain all timing information */
MP4_Box_t *p_stsd; /* will contain all data to initialize decoder */
+ MP4_Box_t *p_sample;/* point on actual sdsd */
+
+ vlc_bool_t b_drms;
+ void *p_drms;
- MP4_Box_t *p_sample; /* actual SampleEntry to make life simpler */
-} track_data_mp4_t;
+} mp4_track_t;
/*****************************************************************************
*****************************************************************************/
struct demux_sys_t
{
- MP4_Box_t box_root; /* container for the whole file */
+ MP4_Box_t *p_root; /* container for the whole file */
mtime_t i_pcr;
uint64_t i_timescale; /* movie time scale */
uint64_t i_duration; /* movie duration */
unsigned int i_tracks; /* number of tracks */
- track_data_mp4_t *track; /* array of track */
+ mp4_track_t *track; /* array of track */
};
-static inline uint64_t MP4_GetTrackPos( track_data_mp4_t *p_track )
-{
- unsigned int i_sample;
- uint64_t i_pos;
-
-
- i_pos = p_track->chunk[p_track->i_chunk].i_offset;
-
- if( p_track->i_sample_size )
- {
- i_pos += ( p_track->i_sample -
- p_track->chunk[p_track->i_chunk].i_sample_first ) *
- p_track->i_sample_size;
- }
- else
- {
- for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
- i_sample < p_track->i_sample; i_sample++ )
- {
- i_pos += p_track->p_sample_size[i_sample];
- }
-
- }
- return( i_pos );
-}
-
-/* Return time in µs of a track */
-static inline mtime_t MP4_GetTrackPTS( track_data_mp4_t *p_track )
-{
- unsigned int i_sample;
- unsigned int i_index;
- uint64_t i_dts;
-
- i_sample = p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first;
- i_dts = p_track->chunk[p_track->i_chunk].i_first_dts;
- i_index = 0;
- while( i_sample > 0 )
- {
- if( i_sample > p_track->chunk[p_track->i_chunk].p_sample_count_dts[i_index] )
- {
- i_dts += p_track->chunk[p_track->i_chunk].p_sample_count_dts[i_index] *
- p_track->chunk[p_track->i_chunk].p_sample_delta_dts[i_index];
- i_sample -= p_track->chunk[p_track->i_chunk].p_sample_count_dts[i_index];
- i_index++;
- }
- else
- {
- i_dts += i_sample *
- p_track->chunk[p_track->i_chunk].p_sample_delta_dts[i_index];
- i_sample = 0;
- break;
- }
- }
- return( (mtime_t)(
- (mtime_t)1000000 *
- (mtime_t)i_dts /
- (mtime_t)p_track->i_timescale ) );
-}
-
-static inline mtime_t MP4_GetMoviePTS(demux_sys_t *p_demux )
-{
- return( (mtime_t)(
- (mtime_t)1000000 *
- (mtime_t)p_demux->i_time /
- (mtime_t)p_demux->i_timescale )
- );
-}
+
projects / vlc / blobdiff