# include "config.h"
#endif
-#include <vlc_common.h>
+#include "mp4.h"
+
#include <vlc_plugin.h>
#include <vlc_demux.h>
#include <vlc_charset.h> /* EnsureUTF8 */
#include <vlc_meta.h> /* vlc_meta_t, vlc_meta_ */
#include <vlc_input.h>
+#include <vlc_aout.h>
#include <assert.h>
-#include "libmp4.h"
#include "id3genres.h" /* for ATOM_gnre */
/*****************************************************************************
static int Demux ( demux_t * );
static int DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
static int DemuxFrg( demux_t * );
+static int DemuxAsLeaf( demux_t * );
static int Seek ( demux_t *, mtime_t );
static int Control ( demux_t *, int, va_list );
-typedef struct mp4_fragment_t mp4_fragment_t;
-struct mp4_fragment_t
-{
- uint64_t i_chunk_range_min_offset;
- uint64_t i_chunk_range_max_offset;
- uint64_t i_duration;
- MP4_Box_t *p_moox;
- mp4_fragment_t *p_next;
-};
-
struct demux_sys_t
{
MP4_Box_t *p_root; /* container for the whole file */
bool b_fragmented; /* fMP4 */
bool b_seekable;
bool b_fastseekable;
+ bool b_seekmode;
bool b_smooth; /* Is it Smooth Streaming? */
+ bool b_index_probed;
bool b_fragments_probed;
mp4_fragment_t moovfragment; /* moov */
mp4_fragment_t *p_fragments; /* known fragments (moof following moov) */
+ struct
+ {
+ mp4_fragment_t *p_fragment;
+ uint32_t i_current_box_type;
+ uint32_t i_mdatbytesleft;
+ } context;
+
/* */
MP4_Box_t *p_tref_chap;
static int MP4_frg_TrackCreate( demux_t *, mp4_track_t *, MP4_Box_t *);
static void MP4_TrackDestroy( mp4_track_t * );
+static block_t * MP4_Block_Read( demux_t *, const mp4_track_t *, int );
+static void MP4_Block_Send( demux_t *, mp4_track_t *, block_t * );
+
static int MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
static int MP4_TrackSeek ( demux_t *, mp4_track_t *, mtime_t );
static uint64_t MP4_TrackGetPos ( mp4_track_t * );
-static uint32_t MP4_TrackSampleSize( mp4_track_t *, uint32_t * );
+static uint32_t MP4_TrackGetReadSize( mp4_track_t *, uint32_t * );
static int MP4_TrackNextSample( demux_t *, mp4_track_t *, uint32_t );
static void MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
static void MP4_UpdateSeekpoint( demux_t * );
-static const char *MP4_ConvertMacCode( uint16_t );
static MP4_Box_t * MP4_GetTrexByTrackID( MP4_Box_t *p_moov, const uint32_t i_id );
static bool AddFragment( demux_t *p_demux, MP4_Box_t *p_moox );
-static int ProbeFragments( demux_t *p_demux );
+static int ProbeFragments( demux_t *p_demux, bool b_force );
+static int ProbeIndex( demux_t *p_demux );
+static mp4_fragment_t *GetFragmentByPos( demux_t *p_demux, uint64_t i_pos, bool b_exact );
+static mp4_fragment_t *GetFragmentByTime( demux_t *p_demux, const mtime_t i_time );
+
+static int LeafIndexGetMoofPosByTime( demux_t *p_demux, const mtime_t i_target_time,
+ uint64_t *pi_pos, mtime_t *pi_mooftime );
+static mtime_t LeafGetFragmentTimeOffset( demux_t *p_demux, mp4_fragment_t * );
+static int LeafGetTrackAndChunkByMOOVPos( demux_t *p_demux, uint64_t *pi_pos,
+ mp4_track_t **pp_tk, unsigned int *pi_chunk );
+static int LeafMapTrafTrunContextes( demux_t *p_demux, MP4_Box_t *p_moof );
/* Helpers */
MP4_Box_t *p_trex = MP4_BoxGet( p_moov, "mvex/trex" );
while( p_trex )
{
- if ( p_trex->i_type == ATOM_trex && BOXDATA(p_trex)->i_track_ID == i_id )
+ if ( p_trex->i_type == ATOM_trex &&
+ BOXDATA(p_trex) && BOXDATA(p_trex)->i_track_ID == i_id )
break;
else
p_trex = p_trex->p_next;
while( p_trak )
{
if( p_trak->i_type == ATOM_trak &&
- (p_tkhd = MP4_BoxGet( p_trak, "tkhd" )) &&
+ (p_tkhd = MP4_BoxGet( p_trak, "tkhd" )) && BOXDATA(p_tkhd) &&
BOXDATA(p_tkhd)->i_track_ID == i_id )
break;
else
for( int i = 0; i < 3; i++ )
{
MP4_Box_t *p_stra = MP4_BoxGet( p_smoo, "uuid[%d]", i );
- if( p_stra && BOXDATA(p_stra)->i_track_ID )
+ if( p_stra && BOXDATA(p_stra) && BOXDATA(p_stra)->i_track_ID )
p_sys->i_tracks++;
/* Get timescale and duration of the video track; */
if( p_sys->i_timescale == 0 )
{
- p_sys->i_timescale = BOXDATA(p_stra)->i_timescale;
- p_sys->i_duration = BOXDATA(p_stra)->i_duration;
+ if ( p_stra && BOXDATA(p_stra) )
+ {
+ p_sys->i_timescale = BOXDATA(p_stra)->i_timescale;
+ p_sys->i_duration = BOXDATA(p_stra)->i_duration;
+ p_sys->i_overall_duration = BOXDATA(p_stra)->i_duration;
+ }
if( p_sys->i_timescale == 0 )
{
msg_Err( p_demux, "bad timescale" );
for( int i = 0; i < 3; i++ )
{
MP4_Box_t *p_stra = MP4_BoxGet( p_smoo, "uuid[%d]", i );
- if( !p_stra || BOXDATA(p_stra)->i_track_ID == 0 )
+ if( !p_stra || !BOXDATA(p_stra) || BOXDATA(p_stra)->i_track_ID == 0 )
continue;
else
{
}
}
+static block_t * MP4_EIA608_Convert( block_t * p_block )
+{
+ /* Rebuild codec data from encap */
+ size_t i_copied = 0;
+ size_t i_remaining = p_block->i_buffer;
+ uint32_t i_bytes = 0;
+ block_t *p_newblock;
+
+ if ( i_remaining < 10 ||
+ !(i_bytes = GetDWBE(p_block->p_buffer)) ||
+ (i_bytes + 8 > i_remaining) ||
+ memcmp("cdat", &p_block->p_buffer[4], 4) ||
+ !(p_newblock = block_Alloc( i_remaining * 3 - 8 )) )
+ {
+ p_block->i_buffer = 0;
+ return p_block;
+ }
+
+ uint8_t *p_write = p_newblock->p_buffer;
+ uint8_t *p_read = &p_block->p_buffer[8];
+ i_bytes -= 8;
+ i_remaining -= 8;
+
+ do
+ {
+ p_write[i_copied++] = 0; /* cc1 == field 0 */
+ p_write[i_copied++] = p_read[0];
+ p_write[i_copied++] = p_read[1];
+ p_read += 2;
+ i_bytes -= 2;
+ i_remaining -= 2;
+ } while( i_bytes >= 2 );
+
+ if ( i_remaining >= 10 &&
+ (i_bytes = GetDWBE(p_read)) &&
+ (i_bytes + 8 <= i_remaining) &&
+ !memcmp("cdt2", &p_read[4], 4) )
+ {
+ p_read += 8;
+ i_bytes -= 8;
+ i_remaining -= 8;
+ do
+ {
+ p_write[i_copied++] = 0; /* cc1 == field 0 */
+ p_write[i_copied++] = p_read[0];
+ p_write[i_copied++] = p_read[1];
+ p_read += 2;
+ i_bytes -= 2;
+ } while( i_bytes >= 2 );
+ }
+
+ block_Release( p_block );
+ p_newblock->i_buffer = i_copied;
+ return p_newblock;
+}
+
+static block_t * MP4_Block_Read( demux_t *p_demux, const mp4_track_t *p_track, int i_size )
+{
+ block_t *p_block = stream_Block( p_demux->s, i_size );
+ if ( !p_block )
+ return NULL;
+
+ /* might have some encap */
+ if( p_track->fmt.i_cat == SPU_ES )
+ {
+ switch( p_track->fmt.i_codec )
+ {
+ case VLC_CODEC_TX3G:
+ case VLC_CODEC_SPU:
+ /* accept as-is */
+ break;
+ case VLC_CODEC_EIA608_1:
+ p_block = MP4_EIA608_Convert( p_block );
+ break;
+ default:
+ p_block->i_buffer = 0;
+ break;
+ }
+ }
+
+ return p_block;
+}
+
+static void MP4_Block_Send( demux_t *p_demux, mp4_track_t *p_track, block_t *p_block )
+{
+ if ( p_track->b_chans_reorder && aout_BitsPerSample( p_track->fmt.i_codec ) )
+ {
+ aout_ChannelReorder( p_block->p_buffer, p_block->i_buffer,
+ p_track->fmt.audio.i_channels,
+ p_track->rgi_chans_reordering,
+ p_track->fmt.i_codec );
+ }
+ es_out_Send( p_demux->out, p_track->p_es, p_block );
+}
+
/*****************************************************************************
* Open: check file and initializes MP4 structures
*****************************************************************************/
return VLC_EGENERIC;
}
stream_Control( p_demux->s, STREAM_CAN_FASTSEEK, &p_sys->b_fastseekable );
+ p_sys->b_seekmode = p_sys->b_fastseekable;
/*Set exported functions */
p_demux->pf_demux = Demux;
{
/* Probe remaining to check if there's really fragments
or if that file is just ready to append fragments */
- ProbeFragments( p_demux );
+ ProbeFragments( p_demux, false );
p_sys->b_fragmented = !!MP4_BoxCount( p_sys->p_root, "/moof" );
}
else
p_sys->b_fragmented = true;
+
+ if ( p_sys->b_fragmented && !p_sys->i_overall_duration )
+ ProbeFragments( p_demux, true );
}
if ( !p_sys->moovfragment.p_moox )
/* we always need a moov entry, but smooth has a workaround */
if ( !p_sys->moovfragment.p_moox && !p_sys->b_smooth )
- {
goto error;
- }
- if( p_sys->b_fragmented || p_sys->b_smooth )
+ if ( p_sys->b_smooth )
{
p_demux->pf_demux = DemuxFrg;
}
+ else if( p_sys->b_fragmented )
+ {
+ p_demux->pf_demux = DemuxAsLeaf;
+ }
if( p_sys->b_smooth )
{
CreateTracksFromSmooBox( p_demux );
return VLC_SUCCESS;
}
- else if( p_sys->b_fragmented )
- {
- /* We are not yet able to demux a fragmented MP4 file, using the 'mfra'
- * a file, and we let avformat do the job. */
- msg_Warn( p_demux, "MP4 plugin discarded "\
- "(fragmented, let avformat demux it)" );
- stream_Seek( p_demux->s, 0 ); /* rewind, for other demux */
- goto error;
- }
MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
char *psz_ref;
uint32_t i_ref_type;
- if( !p_rdrf || !( psz_ref = strdup( BOXDATA(p_rdrf)->psz_ref ) ) )
+ if( !p_rdrf || !BOXDATA(p_rdrf) || !( psz_ref = strdup( BOXDATA(p_rdrf)->psz_ref ) ) )
{
continue;
}
{
/* Try in mehd if fragmented */
MP4_Box_t *p_mehd = MP4_BoxGet( p_demux->p_sys->p_root, "moov/mvex/mehd");
- if ( p_mehd )
+ if ( p_mehd && p_mehd->data.p_mehd )
p_sys->i_overall_duration = p_mehd->data.p_mehd->i_fragment_duration;
else
p_sys->i_overall_duration = p_sys->moovfragment.i_duration;
MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
- if( p_tkhd && (BOXDATA(p_tkhd)->i_flags&MP4_TRACK_ENABLED) )
+ if( p_tkhd && BOXDATA(p_tkhd) && (BOXDATA(p_tkhd)->i_flags&MP4_TRACK_ENABLED) )
b_enabled_es = true;
MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
- if( p_chap && p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
+ if( p_chap && p_chap->data.p_tref_generic &&
+ p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
p_sys->p_tref_chap = p_chap;
}
mp4_fragment_t *p_fragment = &p_sys->moovfragment;
while ( p_fragment )
{
- msg_Dbg( p_demux, "fragment offset %"PRId64", data %"PRId64"<->%"PRId64", time %"PRId64,
+ msg_Dbg( p_demux, "fragment offset %"PRId64", data %"PRIu64"<->%"PRIu64", duration %"PRId64,
p_fragment->p_moox->i_pos, p_fragment->i_chunk_range_min_offset,
- p_fragment->i_chunk_range_max_offset, p_fragment->i_duration );
+ p_fragment->i_chunk_range_max_offset, CLOCK_FREQ * p_fragment->i_duration / p_sys->i_timescale );
p_fragment = p_fragment->p_next;
}
/* Find next track matching contiguous data */
mp4_track_t *tk = NULL;
uint64_t i_candidate_pos = UINT64_MAX;
+ mtime_t i_candidate_dts = INT64_MAX;
for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
{
mp4_track_t *tk_tmp = &p_sys->track[i_track];
if( !tk_tmp->b_ok || tk_tmp->b_chapter || !tk_tmp->b_selected || tk_tmp->i_sample >= tk_tmp->i_sample_count )
continue;
- uint64_t i_pos = MP4_TrackGetPos( tk_tmp );
- if ( i_pos <= i_candidate_pos )
+ if ( p_sys->b_seekmode )
+ {
+ mtime_t i_dts = MP4_TrackGetDTS( p_demux, tk_tmp );
+ if ( i_dts <= i_candidate_dts )
+ {
+ tk = tk_tmp;
+ i_candidate_dts = i_dts;
+ i_candidate_pos = MP4_TrackGetPos( tk_tmp );
+ }
+ }
+ else
{
- i_candidate_pos = i_pos;
- tk = tk_tmp;
+ /* Try to avoid seeking on non fastseekable. Will fail with non interleaved content */
+ uint64_t i_pos = MP4_TrackGetPos( tk_tmp );
+ if ( i_pos <= i_candidate_pos )
+ {
+ i_candidate_pos = i_pos;
+ tk = tk_tmp;
+ }
}
}
msg_Dbg( p_demux, "Could not select track by data position" );
goto end;
}
+ else if ( p_sys->b_seekmode )
+ {
+ if( stream_Seek( p_demux->s, i_candidate_pos ) )
+ {
+ msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
+ tk->i_track_ID );
+ MP4_TrackUnselect( p_demux, tk );
+ goto end;
+ }
+ }
#if 0
msg_Dbg( p_demux, "tk(%i)=%"PRId64" mv=%"PRId64" pos=%"PRIu64, i_track,
#endif
uint32_t i_nb_samples = 0;
- uint32_t i_samplessize = MP4_TrackSampleSize( tk, &i_nb_samples );
+ uint32_t i_samplessize = MP4_TrackGetReadSize( tk, &i_nb_samples );
if( i_samplessize > 0 )
{
block_t *p_block;
{
if( stream_Seek( p_demux->s, i_candidate_pos ) )
{
- msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
- tk->i_track_ID );
+ msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)"
+ ": Failed to seek to %"PRIu64,
+ tk->i_track_ID, i_candidate_pos );
MP4_TrackUnselect( p_demux, tk );
goto end;
}
+ i_current_pos = i_candidate_pos;
}
/* now read pes */
- if( !(p_block = stream_Block( p_demux->s, i_samplessize )) )
+ if( !(p_block = MP4_Block_Read( p_demux, tk, i_samplessize )) )
{
- msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
- tk->i_track_ID );
+ msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)"
+ ": Failed to read %d bytes sample at %"PRIu64,
+ tk->i_track_ID, i_samplessize, i_current_pos );
MP4_TrackUnselect( p_demux, tk );
goto end;
}
- else if( tk->fmt.i_cat == SPU_ES )
- {
- if ( tk->fmt.i_codec != VLC_CODEC_TX3G &&
- tk->fmt.i_codec != VLC_CODEC_SPU )
- p_block->i_buffer = 0;
- }
/* dts */
p_block->i_dts = VLC_TS_0 + MP4_TrackGetDTS( p_demux, tk );
es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
b_data_sent = true;
}
- es_out_Send( p_demux->out, tk->p_es, p_block );
+ MP4_Block_Send( p_demux, tk, p_block );
+ }
- /* Next sample */
+ /* Next sample */
+ if ( i_nb_samples ) /* sample size could be 0, need to go fwd. see return */
MP4_TrackNextSample( p_demux, tk, i_nb_samples );
- }
end:
if ( b_data_sent )
for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
{
mp4_track_t *tk = &p_sys->track[i_track];
- if ( !tk->b_ok || !tk->b_selected ) continue;
- p_sys->i_pcr = __MIN( MP4_TrackGetDTS( p_demux, tk ), p_sys->i_pcr );
+ if ( !tk->b_ok || !tk->b_selected ||
+ (tk->fmt.i_cat != AUDIO_ES && tk->fmt.i_cat != VIDEO_ES) )
+ continue;
+
+ mtime_t i_dts = MP4_TrackGetDTS( p_demux, tk );
+ p_sys->i_pcr = __MIN( i_dts, p_sys->i_pcr );
+
+ if ( !p_sys->b_seekmode && i_dts > p_sys->i_pcr + 2*CLOCK_FREQ )
+ {
+ msg_Dbg( p_demux, "that media doesn't look interleaved, will need to seek");
+ p_sys->b_seekmode = true;
+ }
+
p_sys->i_time = p_sys->i_pcr * p_sys->i_timescale / CLOCK_FREQ;
}
}
- return b_data_sent;
+ return b_data_sent || ( i_samplessize == 0 && i_nb_samples );
}
static void MP4_UpdateSeekpoint( demux_t *p_demux )
return VLC_SUCCESS;
}
+static int LeafSeekIntoFragment( demux_t *p_demux, mp4_fragment_t *p_fragment )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ uint64_t i64 = p_fragment->i_chunk_range_min_offset;
+
+ if ( p_fragment->p_moox->i_type == ATOM_moov )
+ {
+ mp4_track_t *p_track;
+ unsigned int i_chunk;
+ int i_ret = LeafGetTrackAndChunkByMOOVPos( p_demux, &i64, &p_track, &i_chunk );
+ if ( i_ret == VLC_EGENERIC )
+ {
+ msg_Dbg( p_demux, "moov seek failed to identify %"PRIu64, i64 );
+ return i_ret;
+ }
+ msg_Dbg( p_demux, "moov seeking to %"PRIu64, i64 );
+ }
+ else
+ {
+ i64 = p_fragment->i_chunk_range_min_offset;
+ msg_Dbg( p_demux, "moof seeking to %"PRIu64, i64 );
+ }
+
+ if( stream_Seek( p_demux->s, i64 ) )
+ {
+ msg_Err( p_demux, "seek failed to %"PRIu64, i64 );
+ return VLC_EGENERIC;
+ }
+
+ /* map context */
+ p_sys->context.p_fragment = p_fragment;
+ p_sys->context.i_current_box_type = ATOM_mdat;
+ LeafMapTrafTrunContextes( p_demux, p_fragment->p_moox );
+ p_sys->context.i_mdatbytesleft = p_fragment->i_chunk_range_max_offset - i64;
+
+ mtime_t i_time_base = LeafGetFragmentTimeOffset( p_demux, p_fragment );
+ for( unsigned int i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ p_sys->track[i_track].i_time = i_time_base * p_sys->track[i_track].i_timescale / p_sys->i_timescale;
+ }
+ p_sys->i_time = i_time_base;
+ p_sys->i_pcr = VLC_TS_INVALID;
+
+ return VLC_SUCCESS;
+}
+
+static int LeafSeekToTime( demux_t *p_demux, mtime_t i_nztime )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ mp4_fragment_t *p_fragment;
+ uint64_t i64 = 0;
+ if ( !p_sys->i_timescale || !p_sys->i_overall_duration || !p_sys->b_seekable )
+ return VLC_EGENERIC;
+
+ if ( !p_sys->b_fragments_probed && !p_sys->b_index_probed && p_sys->b_seekable )
+ {
+ ProbeIndex( p_demux );
+ p_sys->b_index_probed = true;
+ }
+
+ p_fragment = GetFragmentByTime( p_demux, i_nztime );
+ if ( !p_fragment )
+ {
+ mtime_t i_mooftime;
+ msg_Dbg( p_demux, "seek can't find matching fragment for %"PRId64", trying index", i_nztime );
+ if ( LeafIndexGetMoofPosByTime( p_demux, i_nztime, &i64, &i_mooftime ) == VLC_SUCCESS )
+ {
+ msg_Dbg( p_demux, "seek trying to go to unknown but indexed fragment at %"PRId64, i64 );
+ if( stream_Seek( p_demux->s, i64 ) )
+ {
+ msg_Err( p_demux, "seek to moof failed %"PRId64, i64 );
+ return VLC_EGENERIC;
+ }
+ p_sys->context.i_current_box_type = 0;
+ p_sys->context.i_mdatbytesleft = 0;
+ p_sys->context.p_fragment = NULL;
+ for( unsigned int i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ p_sys->track[i_track].i_time = i_mooftime / CLOCK_FREQ * p_sys->track[i_track].i_timescale;
+ }
+ p_sys->i_time = i_mooftime / CLOCK_FREQ * p_sys->i_timescale;
+ p_sys->i_pcr = VLC_TS_INVALID;
+ }
+ else
+ {
+ msg_Warn( p_demux, "seek by index failed" );
+ return VLC_EGENERIC;
+ }
+ }
+ else
+ {
+ msg_Dbg( p_demux, "seeking to fragment data starting at %"PRIu64" for time %"PRId64,
+ p_fragment->i_chunk_range_min_offset, i_nztime );
+ if ( LeafSeekIntoFragment( p_demux, p_fragment ) != VLC_SUCCESS )
+ return VLC_EGENERIC;
+ }
+
+ /* And set next display time in that trun/fragment */
+ es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME, VLC_TS_0 + i_nztime );
+ return VLC_SUCCESS;
+}
+
+static int LeafSeekToPos( demux_t *p_demux, double f )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ if ( !p_sys->b_seekable )
+ return VLC_EGENERIC;
+
+ if ( p_sys->i_timescale && p_sys->i_overall_duration )
+ {
+ return LeafSeekToTime( p_demux,
+ (mtime_t)( f * CLOCK_FREQ * p_sys->i_overall_duration /
+ p_sys->i_timescale ) );
+ }
+
+ if ( !p_sys->b_fragments_probed && !p_sys->b_index_probed && p_sys->b_seekable )
+ {
+ ProbeIndex( p_demux );
+ p_sys->b_index_probed = true;
+ }
+
+ /* Blind seek to pos only */
+ uint64_t i64 = (uint64_t) stream_Size( p_demux->s ) * f;
+ mp4_fragment_t *p_fragment = GetFragmentByPos( p_demux, i64, false );
+ if ( p_fragment )
+ {
+ msg_Dbg( p_demux, "Seeking to fragment data starting at %"PRIu64" for pos %"PRIu64,
+ p_fragment->i_chunk_range_min_offset, i64 );
+ return LeafSeekIntoFragment( p_demux, p_fragment );
+ }
+ else
+ {
+ msg_Dbg( p_demux, "Cant get fragment for data starting at %"PRIu64, i64 );
+ return VLC_EGENERIC;
+ }
+}
+
static int MP4_frg_Seek( demux_t *p_demux, double f )
{
demux_sys_t *p_sys = p_demux->p_sys;
case DEMUX_SET_POSITION:
f = (double)va_arg( args, double );
- if( p_sys->b_fragmented )
- {
+ if ( p_demux->pf_demux == DemuxAsLeaf )
+ return LeafSeekToPos( p_demux, f );
+ else if ( p_demux->pf_demux == DemuxFrg )
return MP4_frg_Seek( p_demux, f );
- }
else if( p_sys->i_timescale > 0 )
{
i64 = (int64_t)( f * CLOCK_FREQ *
(double)p_sys->i_timescale );
return Seek( p_demux, i64 );
}
- else return VLC_SUCCESS;
+ else return VLC_EGENERIC;
case DEMUX_GET_TIME:
pi64 = (int64_t*)va_arg( args, int64_t * );
case DEMUX_SET_TIME:
i64 = (int64_t)va_arg( args, int64_t );
- return Seek( p_demux, i64 );
+ if ( p_demux->pf_demux == DemuxAsLeaf )
+ return LeafSeekToTime( p_demux, i64 );
+ else
+ return Seek( p_demux, i64 );
case DEMUX_GET_LENGTH:
pi64 = (int64_t*)va_arg( args, int64_t * );
const int64_t i_dts = MP4_TrackGetDTS( p_demux, tk );
const int64_t i_pts_delta = MP4_TrackGetPTSDelta( p_demux, tk );
uint32_t i_nb_samples = 0;
- const uint32_t i_size = MP4_TrackSampleSize( tk, &i_nb_samples );
+ const uint32_t i_size = MP4_TrackGetReadSize( tk, &i_nb_samples );
if( i_size > 0 && !stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
{
demux_sys_t *p_sys = p_demux->p_sys;
MP4_Box_t *p_chpl;
- if( ( p_chpl = MP4_BoxGet( p_sys->p_root, "/moov/udta/chpl" ) ) && BOXDATA(p_chpl)->i_chapter > 0 )
+ if( ( p_chpl = MP4_BoxGet( p_sys->p_root, "/moov/udta/chpl" ) ) &&
+ BOXDATA(p_chpl) && BOXDATA(p_chpl)->i_chapter > 0 )
{
LoadChapterGpac( p_demux, p_chpl );
}
i_last = BOXDATA(p_stsc)->i_first_chunk[i_index] - 1;
}
- p_demux_track->chunk[0].i_sample_first = 0;
- for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
+ if ( p_demux_track->i_chunk_count )
{
- p_demux_track->chunk[i_chunk].i_sample_first =
- p_demux_track->chunk[i_chunk-1].i_sample_first +
- p_demux_track->chunk[i_chunk-1].i_sample_count;
+ p_demux_track->chunk[0].i_sample_first = 0;
+ for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
+ {
+ p_demux_track->chunk[i_chunk].i_sample_first =
+ p_demux_track->chunk[i_chunk-1].i_sample_first +
+ p_demux_track->chunk[i_chunk-1].i_sample_count;
+ }
}
msg_Dbg( p_demux, "track[Id 0x%x] read %d chunk",
* Gives the delta between decoding time (dts) and composition table (pts)
*/
p_box = MP4_BoxGet( p_demux_track->p_stbl, "ctts" );
- if( p_box )
+ if( p_box && p_box->data.p_ctts )
{
MP4_Box_data_ctts_t *ctts = p_box->data.p_ctts;
MP4_Box_t *p_trak = MP4_GetTrakByTrackID( MP4_BoxGet( p_demux->p_sys->p_root, "/moov" ),
p_track->i_track_ID );
MP4_Box_t *p_mdhd = MP4_BoxGet( p_trak, "mdia/mdhd" );
- if ( p_mdhd )
+ if ( p_mdhd && BOXDATA(p_mdhd) )
{
vlc_ureduce( pi_num, pi_den,
(uint64_t) BOXDATA(p_mdhd)->i_timescale * p_track->i_sample_count,
p_track->p_sample = p_sample;
- if( ( p_frma = MP4_BoxGet( p_track->p_sample, "sinf/frma" ) ) )
+ if( ( p_frma = MP4_BoxGet( p_track->p_sample, "sinf/frma" ) ) && p_frma->data.p_frma )
{
msg_Warn( p_demux, "Original Format Box: %4.4s", (char *)&p_frma->data.p_frma->i_type );
switch( p_track->fmt.i_cat )
{
case VIDEO_ES:
+ if ( !p_sample->data.p_sample_vide || p_sample->i_handler != ATOM_vide )
+ break;
p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
p_track->fmt.video.i_bits_per_pixel =
break;
case AUDIO_ES:
+ if ( !p_sample->data.p_sample_soun || p_sample->i_handler != ATOM_soun )
+ break;
p_track->fmt.audio.i_channels =
p_sample->data.p_sample_soun->i_channelcount;
p_track->fmt.audio.i_rate =
p_track->fmt.audio.i_bitspersample =
p_sample->data.p_sample_soun->i_samplesize;
+ MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
+
+ p_track->fmt.i_original_fourcc = p_sample->i_type;
+
if( ( p_track->i_sample_size == 1 || p_track->i_sample_size == 2 ) )
{
- MP4_Box_data_sample_soun_t *p_soun;
- p_soun = p_sample->data.p_sample_soun;
-
if( p_soun->i_qt_version == 0 )
{
switch( p_sample->i_type )
}
else if( p_sample->data.p_sample_soun->i_qt_version == 1 )
{
- MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
-
switch( p_sample->i_type )
{
case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
p_soun->i_qt_version = 0;
break;
}
- case( VLC_FOURCC( 'a', 'c', '-', '3' ) ):
- case( VLC_FOURCC( 'e', 'c', '-', '3' ) ):
+ case( ATOM_ac3 ):
+ case( ATOM_eac3 ):
case( VLC_FOURCC( 'm', 's', 0x20, 0x00 ) ):
p_soun->i_qt_version = 0;
break;
msg_Err( p_demux, "Invalid sample per packet value for qt_version 1. Broken muxer!" );
p_sample->data.p_sample_soun->i_qt_version = 0;
}
+
+ /* Lookup for then channels extension */
+ const MP4_Box_t *p_chan = MP4_BoxGet( p_sample, "chan" );
+ if ( p_chan )
+ {
+ if ( BOXDATA(p_chan)->layout.i_channels_layout_tag == MP4_CHAN_USE_CHANNELS_BITMAP )
+ {
+ uint32_t rgi_chans_sequence[AOUT_CHAN_MAX + 1];
+ uint16_t i_vlc_mapping = 0;
+ uint8_t i_channels = 0;
+ const uint32_t i_bitmap = BOXDATA(p_chan)->layout.i_channels_bitmap;
+ for (uint8_t i=0;i<MP4_CHAN_BITMAP_MAPPING_COUNT;i++)
+ {
+ if ( chan_bitmap_mapping[i].i_bitmap & i_bitmap )
+ {
+ i_channels++;
+ if ( (chan_bitmap_mapping[i].i_vlc & i_vlc_mapping) ||
+ i_channels > AOUT_CHAN_MAX )
+ {
+ /* double mapping or unsupported number of channels */
+ i_vlc_mapping = 0;
+ msg_Warn( p_demux, "discarding chan mapping" );
+ break;
+ }
+ i_vlc_mapping |= chan_bitmap_mapping[i].i_vlc;
+ rgi_chans_sequence[i_channels - 1] = chan_bitmap_mapping[i].i_vlc;
+ }
+ }
+ rgi_chans_sequence[i_channels] = 0;
+ p_track->b_chans_reorder = !!
+ aout_CheckChannelReorder( rgi_chans_sequence, NULL, i_vlc_mapping,
+ p_track->rgi_chans_reordering );
+ }
+
+ }
+
break;
default:
break;
}
-
/* It's a little ugly but .. there are special cases */
switch( p_sample->i_type )
{
p_track->fmt.i_codec = VLC_CODEC_MPGA;
break;
}
- case( VLC_FOURCC( 'a', 'c', '-', '3' ) ):
+ case( ATOM_eac3 ):
+ {
+ const MP4_Box_t *p_dec3 = MP4_BoxGet( p_sample, "dec3", 0 );
+
+ p_track->fmt.i_codec = VLC_CODEC_EAC3;
+ if( p_dec3 && BOXDATA(p_dec3) )
+ {
+ p_track->fmt.audio.i_channels = 0;
+ p_track->fmt.i_bitrate = BOXDATA(p_dec3)->i_data_rate * 1000;
+ p_track->fmt.audio.i_bitspersample = 0;
+ }
+ break;
+ }
+ case( ATOM_ac3 ):
{
- MP4_Box_t *p_dac3_box = MP4_BoxGet( p_sample, "dac3", 0 );
+ const MP4_Box_t *p_dac3 = MP4_BoxGet( p_sample, "dac3", 0 );
p_track->fmt.i_codec = VLC_CODEC_A52;
- if( p_dac3_box )
+ if( p_dac3 && BOXDATA(p_dac3) )
{
static const int pi_bitrate[] = {
32, 40, 48, 56,
256, 320, 384, 448,
512, 576, 640,
};
- MP4_Box_data_dac3_t *p_dac3 = p_dac3_box->data.p_dac3;
p_track->fmt.audio.i_channels = 0;
p_track->fmt.i_bitrate = 0;
- if( p_dac3->i_bitrate_code < sizeof(pi_bitrate)/sizeof(*pi_bitrate) )
- p_track->fmt.i_bitrate = pi_bitrate[p_dac3->i_bitrate_code] * 1000;
+ if( BOXDATA(p_dac3)->i_bitrate_code < sizeof(pi_bitrate)/sizeof(*pi_bitrate) )
+ p_track->fmt.i_bitrate = pi_bitrate[BOXDATA(p_dac3)->i_bitrate_code] * 1000;
p_track->fmt.audio.i_bitspersample = 0;
}
break;
}
- case( VLC_FOURCC( 'e', 'c', '-', '3' ) ):
- {
- p_track->fmt.i_codec = VLC_CODEC_EAC3;
- break;
- }
case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
case( VLC_FOURCC( 'N', 'O', 'N', 'E' ) ):
{
+ if ( p_sample->i_handler != ATOM_soun )
+ break;
MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
if(p_soun && (p_soun->i_samplesize+7)/8 == 1 )
if( p_sample->data.p_sample_soun && (p_track->i_timescale !=
p_sample->data.p_sample_soun->i_sampleratehi) )
{
- MP4_Box_data_sample_soun_t *p_soun =
- p_sample->data.p_sample_soun;
-
msg_Warn( p_demux, "i_timescale (%"PRId32") != i_sampleratehi "
"(%u), making both equal (report any problem).",
p_track->i_timescale, p_soun->i_sampleratehi );
p_track->fmt.i_codec = VLC_CODEC_H263;
break;
+ case( ATOM_c608 ): /* EIA608 closed captions */
+ //case( ATOM_c708 ): /* EIA708 closed captions */
+ p_track->fmt.i_codec = VLC_CODEC_EIA608_1;
+ p_track->fmt.i_cat = SPU_ES;
+ break;
+
case( VLC_FOURCC( 't', 'e', 'x', 't' ) ):
case( VLC_FOURCC( 't', 'x', '3', 'g' ) ):
{
+ if ( p_sample->i_handler != ATOM_text )
+ break;
p_track->fmt.i_codec = VLC_CODEC_TX3G;
MP4_Box_data_sample_text_t *p_text = p_sample->data.p_sample_text;
if ( p_text )
break;
case VLC_CODEC_DVD_LPCM:
{
+ if ( p_sample->i_handler != ATOM_soun )
+ break;
MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
- if( p_soun->i_qt_version == 2 &&
- p_soun->i_qt_description > 20 + 28 )
+ if( p_soun->i_qt_version == 2 )
{
/* Flags:
* 0x01: IsFloat
{0, 0, 0, 0}
};
- uint32_t i_bits = GetDWBE(&p_soun->p_qt_description[20 + 20]);
- uint32_t i_flags = GetDWBE(&p_soun->p_qt_description[20 + 24]);
for( int i = 0; p_formats[i].i_codec; i++ )
{
- if( p_formats[i].i_bits == i_bits &&
- (i_flags & p_formats[i].i_mask) == p_formats[i].i_flags )
+ if( p_formats[i].i_bits == p_soun->i_constbitsperchannel &&
+ (p_soun->i_formatflags & p_formats[i].i_mask) == p_formats[i].i_flags )
{
p_track->fmt.i_codec = p_formats[i].i_codec;
- p_track->fmt.audio.i_bitspersample = i_bits;
- p_track->fmt.audio.i_blockalign = p_soun->i_channelcount * i_bits / 8;
+ p_track->fmt.audio.i_bitspersample = p_soun->i_constbitsperchannel;
+ p_track->fmt.audio.i_blockalign =
+ p_soun->i_channelcount * p_soun->i_constbitsperchannel / 8;
p_track->i_sample_size = p_track->fmt.audio.i_blockalign;
p_soun->i_qt_version = 0;
/* now see if esds is present and if so create a data packet
with decoder_specific_info */
+
+ /* Only if MP4V */
#define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
( p_decconfig ) )
{
/* First update information based on i_objectTypeIndication */
- switch( p_decconfig->i_objectTypeIndication )
+ switch( p_decconfig->i_objectProfileIndication )
{
case( 0x20 ): /* MPEG4 VIDEO */
p_track->fmt.i_codec = VLC_CODEC_MP4V;
default:
/* Unknown entry, but don't touch i_fourcc */
msg_Warn( p_demux,
- "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
- p_decconfig->i_objectTypeIndication,
+ "unknown objectProfileIndication(0x%x) (Track[ID 0x%x])",
+ p_decconfig->i_objectProfileIndication,
p_track->i_track_ID );
break;
}
case VLC_FOURCC( 'V', 'P', '3', '1' ):
case VLC_FOURCC( '3', 'I', 'V', '1' ):
case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
+ {
+ if ( p_sample->i_handler != ATOM_vide )
+ break;
p_track->fmt.i_extra =
p_sample->data.p_sample_vide->i_qt_image_description;
if( p_track->fmt.i_extra > 0 )
p_track->fmt.i_extra);
}
break;
+ }
case VLC_CODEC_AMR_NB:
p_track->fmt.audio.i_rate = 8000;
case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
case VLC_CODEC_QDM2:
case VLC_CODEC_ALAC:
+ {
+ if ( p_sample->i_handler != ATOM_soun )
+ break;
p_track->fmt.i_extra =
p_sample->data.p_sample_soun->i_qt_description;
if( p_track->fmt.i_extra > 0 )
p_track->fmt.audio.i_rate = GetDWBE((uint8_t*)p_track->fmt.p_extra + 52);
}
break;
-
+ }
case VLC_FOURCC( 'v', 'c', '-', '1' ):
{
MP4_Box_t *p_dvc1 = MP4_BoxGet( p_sample, "dvc1" );
- if( p_dvc1 )
+ if( p_dvc1 && BOXDATA(p_dvc1) )
{
p_track->fmt.i_extra = BOXDATA(p_dvc1)->i_vc1;
if( p_track->fmt.i_extra > 0 )
{
MP4_Box_t *p_avcC = MP4_BoxGet( p_sample, "avcC" );
- if( p_avcC )
+ if( p_avcC && BOXDATA(p_avcC) )
{
p_track->fmt.i_extra = BOXDATA(p_avcC)->i_avcC;
if( p_track->fmt.i_extra > 0 )
{
MP4_Box_t *p_hvcC = MP4_BoxGet( p_sample, "hvcC" );
- if( p_hvcC )
+ if( p_hvcC && BOXDATA(p_hvcC) )
{
- p_track->fmt.i_extra = p_hvcC->data.p_hvcC->i_hvcC;
+ p_track->fmt.i_extra = BOXDATA(p_hvcC)->i_hvcC;
if( p_track->fmt.i_extra > 0 )
{
- p_track->fmt.p_extra = malloc( p_hvcC->data.p_hvcC->i_hvcC );
- memcpy( p_track->fmt.p_extra, p_hvcC->data.p_hvcC->p_hvcC,
+ p_track->fmt.p_extra = malloc( BOXDATA(p_hvcC)->i_hvcC );
+ memcpy( p_track->fmt.p_extra, BOXDATA(p_hvcC)->p_hvcC,
p_track->fmt.i_extra );
}
p_track->fmt.i_codec = VLC_CODEC_HEVC;
case VLC_CODEC_ADPCM_MS:
case VLC_CODEC_ADPCM_IMA_WAV:
case VLC_CODEC_QCELP:
- p_track->fmt.audio.i_blockalign = p_sample->data.p_sample_soun->i_bytes_per_frame;
+ {
+ if ( p_sample->i_handler == ATOM_soun )
+ p_track->fmt.audio.i_blockalign = p_sample->data.p_sample_soun->i_bytes_per_frame;
break;
+ }
default:
msg_Dbg( p_demux, "Unrecognized FourCC %4.4s", (char *)&p_sample->i_type );
if( p_track->i_timescale == 0 )
return;
- if( BOXDATA(p_mdhd)->i_language_code < 0x400 )
- {
- strcpy( language, MP4_ConvertMacCode( BOXDATA(p_mdhd)->i_language_code ) );
- p_track->b_mac_encoding = true;
- }
- else if( BOXDATA(p_mdhd)->i_language_code == 0x7fff )
- p_track->b_mac_encoding = true;
- else
- {
- for( unsigned i = 0; i < 3; i++ )
- language[i] = BOXDATA(p_mdhd)->i_language[i];
- language[3] = '\0';
- }
+ memcpy( &language, BOXDATA(p_mdhd)->rgs_language, 3 );
+ p_track->b_mac_encoding = BOXDATA(p_mdhd)->b_mac_encoding;
switch( p_hdlr->data.p_hdlr->i_handler_type )
{
p_track->fmt.i_cat = SPU_ES;
break;
+ /* closed captions */
+ case( ATOM_clcp ):
+ p_track->fmt.i_cat = SPU_ES;
+ break;
+
default:
return;
}
}
p_track->b_selected = true;
-
if( !TrackGotoChunkSample( p_demux, p_track, i_chunk, i_sample ) )
p_track->b_selected = true;
*
*/
#define QT_V0_MAX_SAMPLES 1024
-static uint32_t MP4_TrackSampleSize( mp4_track_t *p_track, uint32_t *pi_nb_samples )
+static uint32_t MP4_TrackGetReadSize( mp4_track_t *p_track, uint32_t *pi_nb_samples )
{
- uint32_t i_size;
- MP4_Box_data_sample_soun_t *p_soun;
+ uint32_t i_size = 0;
+ *pi_nb_samples = 0;
- if( p_track->i_sample_size == 0 )
- {
- /* most simple case */
- *pi_nb_samples = 1;
- return p_track->p_sample_size[p_track->i_sample];
- }
+ if ( p_track->i_sample == p_track->i_sample_count )
+ return 0;
- if( p_track->fmt.i_cat != AUDIO_ES )
+ if ( p_track->fmt.i_cat != AUDIO_ES )
{
*pi_nb_samples = 1;
- return p_track->i_sample_size;
- }
- p_soun = p_track->p_sample->data.p_sample_soun;
-
- if( p_soun->i_qt_version == 1 )
- {
- uint32_t i_samples = p_track->chunk[p_track->i_chunk].i_sample_count;
- if( p_track->fmt.audio.i_blockalign > 1 )
- i_samples = p_soun->i_sample_per_packet;
- i_size = i_samples / p_soun->i_sample_per_packet;
- if ( UINT32_MAX / i_size >= p_soun->i_bytes_per_frame )
- i_size *= p_soun->i_bytes_per_frame;
+ if( p_track->i_sample_size == 0 ) /* all sizes are different */
+ return p_track->p_sample_size[p_track->i_sample];
else
- i_size = UINT32_MAX;
- *pi_nb_samples = i_samples;
- }
- else if( p_track->i_sample_size > 256 )
- {
- /* We do that so we don't read too much data
- * (in this case we are likely dealing with compressed data) */
- i_size = p_track->i_sample_size;
- *pi_nb_samples = 1;
+ return p_track->i_sample_size;
}
else
{
- mp4_chunk_t *p_chunk = &p_track->chunk[p_track->i_chunk];
- int64_t i_length = CLOCK_FREQ / 10;
- uint32_t i_samples = 0;
- uint32_t i_maxsamples = 0;
- for( uint32_t i=p_track->i_sample; i<p_chunk->i_sample_count; i++ )
+ const MP4_Box_data_sample_soun_t *p_soun = p_track->p_sample->data.p_sample_soun;
+ const mp4_chunk_t *p_chunk = &p_track->chunk[p_track->i_chunk];
+ uint32_t i_max_samples = p_chunk->i_sample_count - p_chunk->i_sample + 1;
+
+ /* Group audio packets so we don't call demux for single sample unit */
+ if( p_track->fmt.i_original_fourcc == VLC_CODEC_DVD_LPCM &&
+ p_soun->i_constLPCMframesperaudiopacket &&
+ p_soun->i_constbytesperaudiopacket )
{
- i_length -= CLOCK_FREQ * p_chunk->p_sample_delta_dts[i] / p_track->i_timescale;
- if ( i_length < 0 ) break;
- i_maxsamples++;
+ /* uncompressed case */
+ uint32_t i_packets = i_max_samples / p_soun->i_constLPCMframesperaudiopacket;
+ if ( UINT32_MAX / p_soun->i_constbytesperaudiopacket < i_packets )
+ i_packets = UINT32_MAX / p_soun->i_constbytesperaudiopacket;
+ *pi_nb_samples = i_packets * p_soun->i_constLPCMframesperaudiopacket;
+ return i_packets * p_soun->i_constbytesperaudiopacket;
}
- i_samples = __MIN( QT_V0_MAX_SAMPLES, i_samples );
- i_samples = __MIN( i_maxsamples, i_samples );
- if ( i_samples == 0 ) i_samples = 1;
- i_size = i_samples * p_track->i_sample_size;
- *pi_nb_samples = i_samples;
+ /* all samples have a different size */
+ if( p_track->i_sample_size == 0 )
+ {
+ *pi_nb_samples = 1;
+ return p_track->p_sample_size[p_track->i_sample];
+ }
+
+ if( p_soun->i_qt_version == 1 )
+ {
+ if ( p_soun->i_compressionid != 0 || p_soun->i_bytes_per_sample > 1 ) /* compressed */
+ {
+ /* in this case we are dealing with compressed data
+ -2 in V1: additional fields are meaningless (VBR and such) */
+ *pi_nb_samples = i_max_samples;//p_track->chunk[p_track->i_chunk].i_sample_count;
+ if( p_track->fmt.audio.i_blockalign > 1 )
+ *pi_nb_samples = p_soun->i_sample_per_packet;
+ i_size = *pi_nb_samples / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
+ return i_size;
+ }
+ else /* uncompressed case */
+ {
+ uint32_t i_packets;
+ if( p_track->fmt.audio.i_blockalign > 1 )
+ i_packets = 1;
+ else
+ i_packets = i_max_samples / p_soun->i_sample_per_packet;
+
+ if ( UINT32_MAX / p_soun->i_bytes_per_frame < i_packets )
+ i_packets = UINT32_MAX / p_soun->i_bytes_per_frame;
+
+ *pi_nb_samples = i_packets * p_soun->i_sample_per_packet;
+ i_size = i_packets * p_soun->i_bytes_per_frame;
+ return i_size;
+ }
+ }
+
+ /* uncompressed v0 */
+ *pi_nb_samples = 0;
+ for( uint32_t i=p_track->i_sample;
+ i<p_chunk->i_sample_first+p_chunk->i_sample_count &&
+ i<p_track->i_sample_count;
+ i++ )
+ {
+ (*pi_nb_samples)++;
+ if ( p_track->i_sample_size == 0 )
+ i_size += p_track->p_sample_size[i];
+ else
+ i_size += p_track->i_sample_size;
+ if ( *pi_nb_samples == QT_V0_MAX_SAMPLES )
+ break;
+ }
}
//fprintf( stderr, "size=%d\n", i_size );
static int MP4_TrackNextSample( demux_t *p_demux, mp4_track_t *p_track, uint32_t i_samples )
{
- if( p_track->fmt.i_cat == AUDIO_ES && p_track->i_sample_size != 0 )
+ if ( UINT32_MAX - p_track->i_sample < i_samples )
{
- MP4_Box_data_sample_soun_t *p_soun;
+ p_track->i_sample = UINT32_MAX;
+ return VLC_EGENERIC;
+ }
- p_soun = p_track->p_sample->data.p_sample_soun;
+ p_track->i_sample += i_samples;
- if( p_soun->i_qt_version == 1 )
- {
- /* we read chunk by chunk unless a blockalign is requested */
- if( p_track->fmt.audio.i_blockalign > 1 )
- p_track->i_sample += p_soun->i_sample_per_packet;
- else
- p_track->i_sample += p_track->chunk[p_track->i_chunk].i_sample_count;
- }
- else if( p_track->i_sample_size > 256 )
- {
- /* We do that so we don't read too much data
- * (in this case we are likely dealing with compressed data) */
- p_track->i_sample += 1;
- }
- else
- {
- /* FIXME */
- p_track->i_sample += i_samples;
- if( p_track->i_sample >
- p_track->chunk[p_track->i_chunk].i_sample_first +
- p_track->chunk[p_track->i_chunk].i_sample_count )
- {
- p_track->i_sample =
- p_track->chunk[p_track->i_chunk].i_sample_first +
- p_track->chunk[p_track->i_chunk].i_sample_count;
- }
- }
- }
- else
- {
- p_track->i_sample++;
- }
-
- if( p_track->i_sample >= p_track->i_sample_count )
- return VLC_EGENERIC;
-
- /* Have we changed chunk ? */
- if( p_track->i_sample >=
- p_track->chunk[p_track->i_chunk].i_sample_first +
- p_track->chunk[p_track->i_chunk].i_sample_count )
- {
- if( TrackGotoChunkSample( p_demux, p_track, p_track->i_chunk + 1,
- p_track->i_sample ) )
+ if( p_track->i_sample >= p_track->i_sample_count )
+ return VLC_EGENERIC;
+
+ /* Have we changed chunk ? */
+ if( p_track->i_sample >=
+ p_track->chunk[p_track->i_chunk].i_sample_first +
+ p_track->chunk[p_track->i_chunk].i_sample_count )
+ {
+ if( TrackGotoChunkSample( p_demux, p_track, p_track->i_chunk + 1,
+ p_track->i_sample ) )
{
msg_Warn( p_demux, "track[0x%x] will be disabled "
"(cannot restart decoder)", p_track->i_track_ID );
}
}
-/* */
-static const char *MP4_ConvertMacCode( uint16_t i_code )
-{
- static const struct { const char psz_iso639_1[3]; uint16_t i_code; } p_cvt[] = {
- { "en", 0 }, { "fr", 1 }, { "de", 2 }, { "it", 3 }, { "nl", 4 },
- { "sv", 5 }, { "es", 6 }, { "da", 7 }, { "pt", 8 }, { "no", 9 },
- { "he", 10 }, { "ja", 11 }, { "ar", 12 }, { "fi", 13 }, { "el", 14 },
- { "is", 15 }, { "mt", 16 }, { "tr", 17 }, { "hr", 18 }, { "zh", 19 },
- { "ur", 20 }, { "hi", 21 }, { "th", 22 }, { "ko", 23 }, { "lt", 24 },
- { "pl", 25 }, { "hu", 26 }, { "et", 27 }, { "lv", 28 }, //{ "??", 29 },
- { "fo", 30 }, { "fa", 31 }, { "ru", 32 }, { "zh", 33 }, { "nl", 34 },
- { "ga", 35 }, { "sq", 36 }, { "ro", 37 }, { "cs", 38 }, { "sk", 39 },
- { "sl", 40 }, { "yi", 41 }, { "sr", 42 }, { "mk", 43 }, { "bg", 44 },
- { "uk", 45 }, { "be", 46 }, { "uz", 47 }, { "az", 48 }, { "kk", 48 },
- { "az", 50 }, { "hy", 51 }, { "ka", 52 }, { "mo", 53 }, { "ky", 54 },
- { "tg", 55 }, { "tk", 56 }, { "mn", 57 }, { "mn", 58 }, { "ps", 59 },
- { "ku", 60 }, { "ks", 61 }, { "sd", 62 }, { "bo", 63 }, { "ne", 64 },
- { "sa", 65 }, { "mr", 66 }, { "bn", 67 }, { "as", 68 }, { "gu", 69 },
- { "pa", 70 }, { "or", 71 }, { "ml", 72 }, { "kn", 73 }, { "ta", 74 },
- { "te", 75 }, { "si", 76 }, { "my", 77 }, { "km", 78 }, { "lo", 79 },
- { "vi", 80 }, { "id", 81 }, { "tl", 82 }, { "ms", 83 }, { "ms", 84 },
- { "am", 85 }, { "ti", 86 }, { "om", 87 }, { "so", 88 }, { "sw", 89 },
- { "rw", 90 }, { "rn", 91 }, { "ny", 92 }, { "mg", 93 }, { "eo", 94 },
-
- { "cy", 128 }, { "eu", 129 },
- { "ca", 130 }, { "la", 131 }, { "qu", 132 }, { "gn", 133 }, { "ay", 134 },
- { "tt", 135 }, { "ug", 136 }, { "dz", 137 }, { "jv", 138 }, { "su", 139 },
- { "gl", 140 }, { "af", 141 }, { "br", 142 }, { "iu", 143 }, { "gd", 144 },
- { "gv", 145 }, { "ga", 146 }, { "to", 147 }, { "el", 148 },
- /* */
- { "", 0 }
- };
- int i;
- for( i = 0; *p_cvt[i].psz_iso639_1; i++ )
- {
- if( p_cvt[i].i_code == i_code )
- return p_cvt[i].psz_iso639_1;
- }
- return "";
-}
-
/******************************************************************************
* Here are the functions used for fragmented MP4
*****************************************************************************/
else
p_block->i_pts = VLC_TS_INVALID;
- es_out_Send( p_demux->out, tk->p_es, p_block );
+ MP4_Block_Send( p_demux, tk, p_block );
tk->i_sample++;
}
return VLC_SUCCESS;
}
+
/**
* Get the next chunk of the track identified by i_tk_id.
* \Note We don't want to seek all the time, so if the first chunk given by the
* input method doesn't belong to the right track, we don't throw it away,
* and so, in general, this function fetch more than one chunk.
- * Not to mention that a new init segment might be put everywhere
+ * Not to mention that a new init fragment might be put everywhere
* between two chunks by the input method.
*/
static int MP4_frg_GetChunks( demux_t *p_demux, const unsigned i_tk_id )
msg_Warn( p_demux, "No tkhd found!" );
goto MP4_frg_GetChunks_Error;
}
- tid = BOXDATA(p_tkhd)->i_track_ID;
+ tid = p_tkhd->data.p_tkhd->i_track_ID;
}
else /* Smooth Streaming */
{
msg_Warn( p_demux, "No StraBox found!" );
goto MP4_frg_GetChunks_Error;
}
- tid = BOXDATA(p_stra)->i_track_ID;
+ tid = p_stra->data.p_stra->i_track_ID;
}
p_track = MP4_frg_GetTrackByID( p_demux, tid );
return VLC_SUCCESS;
}
+/**
+ * DemuxFrg: read packet and send them to decoders
+ * \return 1 on success, 0 on error.
+ * TODO check for newly selected track
+ */
+int DemuxFrg( demux_t *p_demux )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ unsigned i_track;
+ unsigned i_track_selected;
+
+ /* check for newly selected/unselected track */
+ for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ mp4_track_t *tk = &p_sys->track[i_track];
+ bool b;
+
+ if( !tk->b_ok || tk->b_chapter )
+ continue;
+
+ es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
+ msg_Dbg( p_demux, "track %u %s!", tk->i_track_ID, b ? "enabled" : "disabled" );
+
+ if( tk->b_selected && !b )
+ {
+ MP4_TrackUnselect( p_demux, tk );
+ }
+ else if( !tk->b_selected && b)
+ {
+ MP4_frg_TrackSelect( p_demux, tk );
+ }
+
+ if( tk->b_selected )
+ i_track_selected++;
+ }
+
+ if( i_track_selected <= 0 )
+ {
+ p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
+ if( p_sys->i_timescale > 0 )
+ {
+ int64_t i_length = CLOCK_FREQ *
+ (mtime_t)p_sys->moovfragment.i_duration /
+ (mtime_t)p_sys->i_timescale;
+ if( MP4_GetMoviePTS( p_sys ) >= i_length )
+ return 0;
+ return 1;
+ }
+
+ msg_Warn( p_demux, "no track selected, exiting..." );
+ return 0;
+ }
+
+ /* first wait for the good time to read a packet */
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
+
+ p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
+
+ /* we will read 100ms for each stream so ...*/
+ p_sys->i_time += __MAX( p_sys->i_timescale / 10, 1 );
+
+ for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ mp4_track_t *tk = &p_sys->track[i_track];
+
+ if( !tk->b_ok || tk->b_chapter || !tk->b_selected )
+ {
+ msg_Warn( p_demux, "Skipping track id %u", tk->i_track_ID );
+ continue;
+ }
+
+ if( !tk->b_has_non_empty_cchunk )
+ {
+ if( MP4_frg_GetChunks( p_demux, tk->i_track_ID ) != VLC_SUCCESS )
+ {
+ msg_Info( p_demux, "MP4_frg_GetChunks returned error. End of stream?" );
+ return 0;
+ }
+ }
+
+ while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
+ {
+ block_t *p_block;
+ int64_t i_delta;
+
+ mp4_chunk_t *ck = tk->cchunk;
+ if( ck->i_sample >= ck->i_sample_count )
+ {
+ msg_Err( p_demux, "sample %"PRIu32" of %"PRIu32"",
+ ck->i_sample, ck->i_sample_count );
+ return 0;
+ }
+
+ uint32_t sample_size = ck->p_sample_size[ck->i_sample];
+ p_block = block_Alloc( sample_size );
+ uint8_t *src = ck->p_sample_data[ck->i_sample];
+ memcpy( p_block->p_buffer, src, sample_size );
+
+ ck->i_sample++;
+ if( ck->i_sample == ck->i_sample_count )
+ tk->b_has_non_empty_cchunk = false;
+
+ /* dts */
+ p_block->i_dts = VLC_TS_0 + MP4_TrackGetDTS( p_demux, tk );
+ /* pts */
+ i_delta = MP4_TrackGetPTSDelta( p_demux, tk );
+ if( i_delta != -1 )
+ p_block->i_pts = p_block->i_dts + i_delta;
+ else if( tk->fmt.i_cat != VIDEO_ES )
+ p_block->i_pts = p_block->i_dts;
+ else
+ p_block->i_pts = VLC_TS_INVALID;
+
+ MP4_Block_Send( p_demux, tk, p_block );
+
+ tk->i_sample++;
+
+ if( !tk->b_has_non_empty_cchunk )
+ break;
+ }
+ }
+ return 1;
+}
+
+static MP4_Box_t * LoadNextChunk( demux_t *p_demux )
+{
+ /* Read Next Chunk */
+ MP4_Box_t *p_chunk = MP4_BoxGetNextChunk( p_demux->s );
+ if( !p_chunk )
+ {
+ msg_Warn( p_demux, "no next chunk" );
+ return NULL;
+ }
+
+ if( !p_chunk->p_first )
+ {
+ msg_Warn( p_demux, "no next chunk child" );
+ return NULL;
+ }
+
+ return p_chunk;
+}
+
+static bool BoxExistsInRootTree( MP4_Box_t *p_root, uint32_t i_type, off_t i_pos )
+{
+ while ( p_root )
+ {
+ if ( p_root->i_pos == i_pos )
+ {
+ assert( i_type == p_root->i_type );
+ break;
+ }
+ p_root = p_root->p_next;
+ }
+ return (p_root != NULL);
+}
/* Keeps an ordered chain of all fragments */
static bool AddFragment( demux_t *p_demux, MP4_Box_t *p_moox )
if ( !p_sys->moovfragment.p_moox )
{
p_sys->moovfragment.p_moox = p_moox;
-
MP4_Box_t *p_mvhd;
if( (p_mvhd = MP4_BoxGet( p_moox, "mvhd" )) )
{
p_sys->i_timescale = BOXDATA(p_mvhd)->i_timescale;
- p_sys->moovfragment.i_duration = BOXDATA(p_mvhd)->i_duration;
+ p_sys->i_overall_duration = BOXDATA(p_mvhd)->i_duration;
+ }
+
+ if ( MP4_BoxCount( p_moox, "mvex" ) || !p_mvhd )
+ { /* duration might be wrong an be set to whole duration :/ */
+ p_sys->moovfragment.i_duration = 0;
+ MP4_Box_t *p_tkhd;
+ MP4_Box_t *p_trak = MP4_BoxGet( p_moox, "trak" );
+ while( p_trak )
+ {
+ if ( p_trak->i_type == ATOM_trak && (p_tkhd = MP4_BoxGet( p_trak, "tkhd" )) )
+ {
+ if ( BOXDATA(p_tkhd)->i_duration > p_sys->moovfragment.i_duration )
+ p_sys->moovfragment.i_duration = BOXDATA(p_tkhd)->i_duration;
+ }
+ p_trak = p_trak->p_next;
+ }
}
+
msg_Dbg( p_demux, "added fragment %4.4s", (char*) &p_moox->i_type );
return true;
}
i_track_defaultsamplesize = BOXDATA(p_trex)->i_default_sample_size;
i_track_defaultsampleduration = BOXDATA(p_trex)->i_default_sample_duration;
}
+
MP4_Box_t *p_trak = MP4_GetTrakByTrackID( p_sys->moovfragment.p_moox, BOXDATA(p_tfhd)->i_track_ID );
if ( p_trak )
{
}
else if ( BOXDATA(p_tfhd)->i_flags & MP4_TFHD_DEFAULT_BASE_IS_MOOF )
{
- i_traf_base_data_offset = p_new->p_moox->i_pos + 8;
+ i_traf_base_data_offset = p_new->p_moox->i_pos /* + 8*/;
}
else
{
if ( !p_mehd )
{
p_sys->i_overall_duration = 0;
- p_new = &p_sys->moovfragment;
- while ( p_new )
+ if ( p_sys->b_fragments_probed )
{
- p_sys->i_overall_duration += p_new->i_duration;
- p_new = p_new->p_next;
+ p_new = &p_sys->moovfragment;
+ while ( p_new )
+ {
+ p_sys->i_overall_duration += p_new->i_duration;
+ p_new = p_new->p_next;
+ }
}
}
else
return true;
}
-static int ProbeFragments( demux_t *p_demux )
+static int ProbeIndex( demux_t *p_demux )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ uint64_t i_backup_pos, i_stream_size;
+ uint8_t mfro[MP4_MFRO_BOXSIZE];
+ assert( p_sys->b_seekable );
+
+ if ( MP4_BoxCount( p_sys->p_root, "/mfra" ) )
+ return VLC_SUCCESS;
+
+ i_stream_size = stream_Size( p_demux->s );
+ if ( ( i_stream_size >> 62 ) ||
+ ( i_stream_size < MP4_MFRO_BOXSIZE ) ||
+ ( !MP4_stream_Tell( p_demux->s, &i_backup_pos ) ) ||
+ ( stream_Seek( p_demux->s, i_stream_size - MP4_MFRO_BOXSIZE ) != VLC_SUCCESS )
+ )
+ {
+ msg_Dbg( p_demux, "Probing tail for mfro has failed" );
+ return VLC_EGENERIC;
+ }
+
+ if ( stream_Read( p_demux->s, &mfro, MP4_MFRO_BOXSIZE ) == MP4_MFRO_BOXSIZE &&
+ VLC_FOURCC(mfro[4],mfro[5],mfro[6],mfro[7]) == ATOM_mfro &&
+ GetDWBE( &mfro ) == MP4_MFRO_BOXSIZE )
+ {
+ uint32_t i_offset = GetDWBE( &mfro[12] );
+ msg_Dbg( p_demux, "will read mfra index at %"PRIu64, i_stream_size - i_offset );
+ if ( i_stream_size > i_offset &&
+ stream_Seek( p_demux->s, i_stream_size - i_offset ) == VLC_SUCCESS )
+ {
+ msg_Dbg( p_demux, "reading mfra index at %"PRIu64, i_stream_size - i_offset );
+ MP4_ReadBoxContainerChildren( p_demux->s, p_sys->p_root, ATOM_mfra );
+ }
+ }
+
+ return stream_Seek( p_demux->s, i_backup_pos );
+}
+
+static int ProbeFragments( demux_t *p_demux, bool b_force )
{
demux_sys_t *p_sys = p_demux->p_sys;
uint64_t i_current_pos;
assert( p_sys->p_root );
- MP4_ReadBoxContainerChildren( p_demux->s, p_sys->p_root, 0 ); /* Get the rest of the file */
+ if ( p_sys->b_fastseekable || b_force )
+ {
+ MP4_ReadBoxContainerChildren( p_demux->s, p_sys->p_root, 0 ); /* Get the rest of the file */
+ p_sys->b_fragments_probed = true;
+ }
+ else
+ {
+ /* We stop at first moof, which validates our fragmentation condition
+ * and we'll find others while reading. */
+ MP4_ReadBoxContainerChildren( p_demux->s, p_sys->p_root, ATOM_moof );
+ }
- MP4_Box_t *p_moov = MP4_BoxGet( p_sys->p_root, "/moov" );
- if ( !p_moov )
+ if ( !p_sys->moovfragment.p_moox )
{
- MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
- return VLC_EGENERIC;
+ MP4_Box_t *p_moov = MP4_BoxGet( p_sys->p_root, "/moov" );
+ if ( !p_moov )
+ {
+ /* moov/mvex before probing should be present anyway */
+ MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
+ return VLC_EGENERIC;
+ }
+ AddFragment( p_demux, p_moov );
}
- AddFragment( p_demux, p_moov );
MP4_Box_t *p_moof = MP4_BoxGet( p_sys->p_root, "moof" );
while ( p_moof )
p_moof = p_moof->p_next;
}
- p_sys->b_fragments_probed = true;
-
MP4_Box_t *p_mdat = MP4_BoxGet( p_sys->p_root, "mdat" );
- assert( p_mdat );
- stream_Seek( p_demux->s, p_mdat->i_pos );
- msg_Dbg( p_demux, "rewinding to mdat %"PRId64, p_mdat->i_pos );
+ if ( p_mdat )
+ {
+ stream_Seek( p_demux->s, p_mdat->i_pos );
+ msg_Dbg( p_demux, "rewinding to mdat %"PRId64, p_mdat->i_pos );
+ }
return VLC_SUCCESS;
}
-/**
- * DemuxFrg: read packet and send them to decoders
- * \return 1 on success, 0 on error.
- * TODO check for newly selected track
- */
-int DemuxFrg( demux_t *p_demux )
+static mp4_fragment_t * GetFragmentByPos( demux_t *p_demux, uint64_t i_pos, bool b_exact )
{
- demux_sys_t *p_sys = p_demux->p_sys;
- unsigned i_track;
- unsigned i_track_selected;
-
- /* check for newly selected/unselected track */
- for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks; i_track++ )
+ mp4_fragment_t *p_fragment = &p_demux->p_sys->moovfragment;
+ while ( p_fragment )
{
- mp4_track_t *tk = &p_sys->track[i_track];
- bool b;
-
- if( !tk->b_ok || tk->b_chapter )
- continue;
-
- es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
- msg_Dbg( p_demux, "track %u %s!", tk->i_track_ID, b ? "enabled" : "disabled" );
-
- if( tk->b_selected && !b )
+ if ( i_pos <= p_fragment->i_chunk_range_max_offset &&
+ ( !b_exact || i_pos >= p_fragment->i_chunk_range_min_offset ) )
{
- MP4_TrackUnselect( p_demux, tk );
+ msg_Dbg( p_demux, "fragment matched %"PRIu64" << %"PRIu64" << %"PRIu64,
+ p_fragment->i_chunk_range_min_offset, i_pos,
+ p_fragment->i_chunk_range_max_offset );
+ return p_fragment;
}
- else if( !tk->b_selected && b)
+ else
{
- MP4_frg_TrackSelect( p_demux, tk );
+ p_fragment = p_fragment->p_next;
}
-
- if( tk->b_selected )
- i_track_selected++;
}
+ return NULL;
+}
- if( i_track_selected <= 0 )
+/* Get a matching fragment data start by clock time */
+static mp4_fragment_t * GetFragmentByTime( demux_t *p_demux, const mtime_t i_time )
+{
+ mp4_fragment_t *p_fragment = &p_demux->p_sys->moovfragment;
+ mtime_t i_base_time = 0;
+ while ( p_fragment )
{
- p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
- if( p_sys->i_timescale > 0 )
+ mtime_t i_length = CLOCK_FREQ * p_fragment->i_duration / p_demux->p_sys->i_timescale;
+ if ( i_time >= i_base_time &&
+ i_time <= i_base_time + i_length )
{
- int64_t i_length = CLOCK_FREQ *
- (mtime_t)p_sys->moovfragment.i_duration /
- (mtime_t)p_sys->i_timescale;
- if( MP4_GetMoviePTS( p_sys ) >= i_length )
- return 0;
- return 1;
+ return p_fragment;
+ }
+ else
+ {
+ i_base_time += i_length;
+ p_fragment = p_fragment->p_next;
}
- msg_Warn( p_demux, "no track selected, exiting..." );
- return 0;
+ if ( !p_demux->p_sys->b_fragments_probed )
+ return NULL; /* We have no way to guess missing fragments time */
}
+ return NULL;
+}
- /* first wait for the good time to read a packet */
- es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
+/* Returns fragment scaled time offset */
+static mtime_t LeafGetFragmentTimeOffset( demux_t *p_demux, mp4_fragment_t *p_fragment )
+{
+ mtime_t i_base_scaledtime = 0;
+ mp4_fragment_t *p_current = &p_demux->p_sys->moovfragment;
+ while ( p_current != p_fragment )
+ {
+ i_base_scaledtime += p_current->i_duration;
+ p_current = p_current->p_next;
+ }
+ return i_base_scaledtime;
+}
- p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
+static int LeafParseTRUN( demux_t *p_demux, mp4_track_t *p_track,
+ const uint32_t i_defaultduration, const uint32_t i_defaultsize,
+ const MP4_Box_data_trun_t *p_trun, uint32_t * const pi_mdatlen )
+{
+ assert( p_trun->i_sample_count );
+ msg_Dbg( p_demux, "Default sample duration %"PRIu32" size %"PRIu32" firstdts %"PRIu64,
+ i_defaultduration, i_defaultsize, p_track->i_first_dts );
- /* we will read 100ms for each stream so ...*/
- p_sys->i_time += __MAX( p_sys->i_timescale / 10, 1 );
+ uint32_t dur = 0, len;
+ uint32_t chunk_size = 0;
+ mtime_t i_nzdts = CLOCK_FREQ * p_track->i_time / p_track->i_timescale;
- for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ mtime_t i_nzpts;
+
+ for( uint32_t i = 0; i < p_trun->i_sample_count; i++)
{
- mp4_track_t *tk = &p_sys->track[i_track];
+ i_nzdts += CLOCK_FREQ * dur / p_track->i_timescale;
+ i_nzpts = i_nzdts;
- if( !tk->b_ok || tk->b_chapter || !tk->b_selected )
+ if( p_trun->i_flags & MP4_TRUN_SAMPLE_DURATION )
+ dur = p_trun->p_samples[i].i_duration;
+ else
+ dur = i_defaultduration;
+
+ p_track->i_time += dur;
+
+ if( p_trun->i_flags & MP4_TRUN_SAMPLE_TIME_OFFSET )
{
- msg_Warn( p_demux, "Skipping track id %u", tk->i_track_ID );
+ if ( p_trun->i_version == 0 )
+ i_nzpts += CLOCK_FREQ * (int32_t) p_trun->p_samples[i].i_composition_time_offset / p_track->i_timescale;
+ else
+ i_nzpts += CLOCK_FREQ * p_trun->p_samples[i].i_composition_time_offset / p_track->i_timescale;
+ }
+
+ if( p_trun->i_flags & MP4_TRUN_SAMPLE_SIZE )
+ len = p_trun->p_samples[i].i_size;
+ else
+ len = i_defaultsize;
+
+ assert( dur ); /* dur, dur ! */
+ assert( len );
+
+ if ( chunk_size + len > *pi_mdatlen )
+ {
+ /* update data left in mdat */
+ *pi_mdatlen -= chunk_size;
+ return VLC_EGENERIC;
+ }
+
+ block_t *p_block = MP4_Block_Read( p_demux, p_track, __MIN( len, INT32_MAX ) );
+ uint32_t i_read = ( p_block ) ? p_block->i_buffer : 0;
+ if( i_read < len )
+ {
+ /* update data left in mdat */
+ *pi_mdatlen -= chunk_size;
+ *pi_mdatlen -= i_read;
+ free( p_block );
+ return VLC_EGENERIC;
+ }
+
+ if ( p_demux->p_sys->i_pcr < VLC_TS_0 )
+ {
+ p_demux->p_sys->i_pcr = i_nzdts;
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + i_nzdts );
+ }
+
+ if ( p_track->p_es )
+ {
+ p_block->i_dts = VLC_TS_0 + i_nzdts;
+ p_block->i_pts = VLC_TS_0 + i_nzpts;
+ p_block->i_length = CLOCK_FREQ * dur / p_track->i_timescale;
+ MP4_Block_Send( p_demux, p_track, p_block );
+ }
+ else free( p_block );
+
+ chunk_size += len;
+ }
+
+ /* update data left in mdat */
+ *pi_mdatlen -= chunk_size;
+ return VLC_SUCCESS;
+}
+
+static int LeafGetTrackAndChunkByMOOVPos( demux_t *p_demux, uint64_t *pi_pos,
+ mp4_track_t **pp_tk, unsigned int *pi_chunk )
+{
+ const demux_sys_t *p_sys = p_demux->p_sys;
+
+ mp4_track_t *p_tk_closest = NULL;
+ uint64_t i_closest = UINT64_MAX;
+ unsigned int i_chunk_closest;
+
+ *pp_tk = NULL;
+
+ for ( unsigned int i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ for( unsigned int i_chunk = 0; i_chunk < p_sys->track[i_track].i_chunk_count; i_chunk++ )
+ {
+ if ( p_sys->track[i_track].chunk[i_chunk].i_offset > *pi_pos )
+ {
+ i_closest = __MIN( i_closest, p_sys->track[i_track].chunk[i_chunk].i_offset );
+ p_tk_closest = &p_sys->track[i_track];
+ i_chunk_closest = i_chunk;
+ }
+
+ if ( *pi_pos == p_sys->track[i_track].chunk[i_chunk].i_offset )
+ {
+ *pp_tk = &p_sys->track[i_track];
+ *pi_chunk = i_chunk;
+ return VLC_SUCCESS;
+ }
+ }
+ }
+
+ if ( i_closest != UINT64_MAX )
+ {
+ *pi_pos = i_closest;
+ *pp_tk = p_tk_closest;
+ *pi_chunk = i_chunk_closest;
+ return VLC_ENOOBJ;
+ }
+ else return VLC_EGENERIC;
+}
+
+static int LeafMOOVGetSamplesSize( const mp4_track_t *p_track, const uint32_t i_sample,
+ uint32_t *pi_samplestoread, uint32_t *pi_samplessize,
+ const uint32_t i_maxbytes, const uint32_t i_maxsamples )
+{
+ MP4_Box_t *p_stsz = MP4_BoxGet( p_track->p_stbl, "stsz" );
+ if ( !p_stsz )
+ return VLC_EGENERIC;
+
+ if ( BOXDATA(p_stsz)->i_sample_size == 0 )
+ {
+ uint32_t i_entry = i_sample;
+ uint32_t i_totalbytes = 0;
+ *pi_samplestoread = 1;
+
+ if ( i_sample >= BOXDATA(p_stsz)->i_sample_count )
+ return VLC_EGENERIC;
+
+ *pi_samplessize = BOXDATA(p_stsz)->i_entry_size[i_sample];
+ i_totalbytes += *pi_samplessize;
+
+ if ( *pi_samplessize > i_maxbytes )
+ return VLC_EGENERIC;
+
+ i_entry++;
+ while( i_entry < BOXDATA(p_stsz)->i_sample_count &&
+ *pi_samplessize == BOXDATA(p_stsz)->i_entry_size[i_entry] &&
+ i_totalbytes + *pi_samplessize < i_maxbytes &&
+ *pi_samplestoread < i_maxsamples
+ )
+ {
+ i_totalbytes += *pi_samplessize;
+ (*pi_samplestoread)++;
+ }
+
+ *pi_samplessize = i_totalbytes;
+ }
+ else
+ {
+ /* all samples have same size */
+ *pi_samplessize = BOXDATA(p_stsz)->i_sample_size;
+ *pi_samplestoread = __MIN( i_maxsamples, BOXDATA(p_stsz)->i_sample_count );
+ *pi_samplestoread = __MIN( i_maxbytes / *pi_samplessize, *pi_samplestoread );
+ *pi_samplessize = *pi_samplessize * *pi_samplestoread;
+ }
+
+ return VLC_SUCCESS;
+}
+
+static inline mtime_t LeafGetMOOVTimeInChunk( const mp4_chunk_t *p_chunk, uint32_t i_sample )
+{
+ mtime_t i_time = 0;
+ uint32_t i_index = 0;
+
+ while( i_sample > 0 )
+ {
+ if( i_sample > p_chunk->p_sample_count_dts[i_index] )
+ {
+ i_time += p_chunk->p_sample_count_dts[i_index] *
+ p_chunk->p_sample_delta_dts[i_index];
+ i_sample -= p_chunk->p_sample_count_dts[i_index];
+ i_index++;
+ }
+ else
+ {
+ i_time += i_sample * p_chunk->p_sample_delta_dts[i_index];
+ break;
+ }
+ }
+
+ return i_time;
+}
+
+static int LeafParseMDATwithMOOV( demux_t *p_demux )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+
+ assert( p_sys->context.i_current_box_type == ATOM_mdat );
+ assert( p_sys->context.p_fragment->p_moox->i_type == ATOM_moov );
+
+ uint64_t i_current_pos;
+ if ( !MP4_stream_Tell( p_demux->s, &i_current_pos ) )
+ return VLC_EGENERIC;
+
+ if ( p_sys->context.i_mdatbytesleft == 0 ) /* Start parsing new mdat */
+ {
+ /* Ready mdat section */
+ uint8_t mdat[8];
+ int i_read = stream_Read( p_demux->s, &mdat, 8 );
+ p_sys->context.i_mdatbytesleft = GetDWBE( mdat );
+ if ( i_read < 8 || p_sys->context.i_mdatbytesleft < 8 ||
+ VLC_FOURCC( mdat[4], mdat[5], mdat[6], mdat[7] ) != ATOM_mdat )
+ {
+ uint64_t i_pos;
+ if ( !MP4_stream_Tell( p_demux->s, &i_pos ) )
+ msg_Err( p_demux, "No mdat atom at %"PRIu64, i_pos - __MAX( 0, i_read ) );
+ return VLC_EGENERIC;
+ }
+ i_current_pos += 8;
+ p_sys->context.i_mdatbytesleft -= 8;
+ }
+
+ while( p_sys->context.i_mdatbytesleft > 0 )
+ {
+ mp4_track_t *p_track;
+ unsigned int i_chunk;
+
+ /**/
+ uint64_t i_pos = i_current_pos;
+ int i_ret = LeafGetTrackAndChunkByMOOVPos( p_demux, &i_pos, &p_track, &i_chunk );
+ if ( i_ret == VLC_EGENERIC )
+ {
+ msg_Err(p_demux, "can't find referenced chunk for start at %"PRIu64, i_current_pos );
+ goto error;
+ }
+ else if( i_ret == VLC_ENOOBJ )
+ {
+ assert( i_pos - i_current_pos > p_sys->context.i_mdatbytesleft );
+ int i_read = stream_Read( p_demux->s, NULL, i_pos - i_current_pos );
+ i_current_pos += i_read;
+ p_sys->context.i_mdatbytesleft -= i_read;
+ if ( i_read == 0 ) goto error;
continue;
}
+ /**/
- if( !tk->b_has_non_empty_cchunk )
+ mp4_chunk_t *p_chunk = &p_track->chunk[i_chunk];
+
+ uint32_t i_nb_samples_at_chunk_start = p_chunk->i_sample_first;
+ uint32_t i_nb_samples_in_chunk = p_chunk->i_sample_count;
+
+ assert(i_nb_samples_in_chunk);
+
+ uint32_t i_nb_samples = 0;
+ while ( i_nb_samples < i_nb_samples_in_chunk )
{
- if( MP4_frg_GetChunks( p_demux, tk->i_track_ID ) != VLC_SUCCESS )
+ uint32_t i_samplessize = 0;
+ uint32_t i_samplescounttoread = 0;
+ i_ret = LeafMOOVGetSamplesSize( p_track,
+ i_nb_samples_at_chunk_start + i_nb_samples,
+ &i_samplescounttoread, &i_samplessize,
+ p_sys->context.i_mdatbytesleft,
+ /*i_nb_samples_in_chunk - i_nb_samples*/ 1 );
+ if ( i_ret != VLC_SUCCESS )
+ goto error;
+
+ if( p_sys->context.i_mdatbytesleft &&
+ p_sys->context.i_mdatbytesleft >= i_samplessize )
{
- msg_Info( p_demux, "MP4_frg_GetChunks returned error. End of stream?" );
- return 0;
+ block_t *p_block;
+
+ /* now read pes */
+
+ if( !(p_block = MP4_Block_Read( p_demux, p_track, i_samplessize )) )
+ {
+ uint64_t i_pos;
+ if ( MP4_stream_Tell( p_demux->s, &i_pos ) )
+ {
+ p_sys->context.i_mdatbytesleft -= ( i_pos - i_current_pos );
+ msg_Err( p_demux, "stream block error %"PRId64" %"PRId64, i_pos, i_pos - i_current_pos );
+ }
+ goto error;
+ }
+
+ i_nb_samples += i_samplescounttoread;
+ i_current_pos += i_samplessize;
+ p_sys->context.i_mdatbytesleft -= i_samplessize;
+
+ /* dts */
+ mtime_t i_time = LeafGetMOOVTimeInChunk( p_chunk, i_nb_samples );
+ i_time += p_chunk->i_first_dts;
+ p_track->i_time = i_time;
+ p_block->i_dts = VLC_TS_0 + CLOCK_FREQ * i_time / p_track->i_timescale;
+
+ /* pts */
+ int64_t i_delta = MP4_TrackGetPTSDelta( p_demux, p_track );
+ if( i_delta != -1 )
+ p_block->i_pts = p_block->i_dts + i_delta;
+ else if( p_track->fmt.i_cat != VIDEO_ES )
+ p_block->i_pts = p_block->i_dts;
+ else
+ p_block->i_pts = VLC_TS_INVALID;
+
+ MP4_Block_Send( p_demux, p_track, p_block );
+
+ if ( p_demux->p_sys->i_pcr < VLC_TS_0 )
+ {
+ p_sys->i_time = p_track->i_time * p_sys->i_timescale / p_track->i_timescale;
+ p_demux->p_sys->i_pcr = MP4_GetMoviePTS( p_demux->p_sys );
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_demux->p_sys->i_pcr );
+ }
+
+ }
+ else
+ {
+ // sample size > left bytes
+ break;
}
+
+ p_track->i_sample += i_samplescounttoread;
}
- while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
+ /* flag end of mdat section if needed */
+ if ( p_sys->context.i_mdatbytesleft == 0 )
+ p_sys->context.i_current_box_type = 0;
+
+ // next chunk
+ return VLC_SUCCESS;
+ }
+
+error:
+ /* Skip if we didn't reach the end of mdat box */
+ if ( p_sys->context.i_mdatbytesleft > 0 )
+ {
+ msg_Err( p_demux, "mdat had still %"PRIu32" bytes unparsed as samples",
+ p_sys->context.i_mdatbytesleft );
+ stream_ReadU32( p_demux->s, NULL, p_sys->context.i_mdatbytesleft );
+ }
+ p_sys->context.i_current_box_type = 0;
+
+ return VLC_SUCCESS;
+}
+
+static mp4_track_t * LeafGetTrackByTrunPos( demux_t *p_demux, const uint64_t i_pos, const uint64_t i_moofpos )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+
+ for ( uint32_t i=0; i<p_sys->i_tracks; i++ )
+ {
+ mp4_track_t *p_track = &p_sys->track[i];
+ if ( !p_track->context.p_trun || !p_track->context.p_tfhd )
+ continue;
+ const MP4_Box_data_trun_t *p_trun_data = p_track->context.BOXDATA(p_trun);
+ uint64_t i_offset = 0;
+
+ if ( p_track->context.BOXDATA(p_tfhd)->i_flags & MP4_TFHD_BASE_DATA_OFFSET )
+ i_offset = p_track->context.BOXDATA(p_tfhd)->i_base_data_offset;
+ else
+ i_offset = i_moofpos;
+
+ //if ( p_track->context.BOXDATA(p_tfhd)->i_flags & MP4_TFHD_DEFAULT_BASE_IS_MOOF )
+ // i_offset += i_moofpos;
+
+ if (p_trun_data->i_flags & MP4_TRUN_DATA_OFFSET)
+ i_offset += p_trun_data->i_data_offset;
+ else
+ return p_track;
+
+ if ( i_offset == i_pos )
+ return p_track;
+ }
+
+ return NULL;
+}
+
+static int LeafMapTrafTrunContextes( demux_t *p_demux, MP4_Box_t *p_moof )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+
+ /* reset */
+ for ( uint32_t i=0; i<p_sys->i_tracks; i++ )
+ {
+ mp4_track_t *p_track = &p_sys->track[i];
+ p_track->context.p_tfhd = NULL;
+ p_track->context.p_traf = NULL;
+ p_track->context.p_trun = NULL;
+ }
+
+ if ( p_moof->i_type == ATOM_moov )
+ return VLC_SUCCESS;
+
+ MP4_Box_t *p_traf = MP4_BoxGet( p_moof, "traf" );
+ if( !p_traf )
+ {
+ msg_Warn( p_demux, "no traf box found!" );
+ return VLC_EGENERIC;
+ }
+
+ /* map contexts */
+ while ( p_traf )
+ {
+ if ( p_traf->i_type == ATOM_traf )
{
- block_t *p_block;
- int64_t i_delta;
+ MP4_Box_t *p_tfhd = MP4_BoxGet( p_traf, "tfhd" );
+ for ( uint32_t i=0; p_tfhd && i<p_sys->i_tracks; i++ )
+ {
+ mp4_track_t *p_track = &p_sys->track[i];
+ if ( BOXDATA(p_tfhd)->i_track_ID == p_track->i_track_ID )
+ {
+ MP4_Box_t *p_trun = MP4_BoxGet( p_traf, "trun" );
+ if ( p_trun )
+ {
+ p_track->context.p_tfhd = p_tfhd;
+ p_track->context.p_traf = p_traf;
+ p_track->context.p_trun = p_trun;
+ }
+ p_tfhd = NULL; /* break loop */
+ }
+ }
+ }
+ p_traf = p_traf->p_next;
+ }
- mp4_chunk_t *ck = tk->cchunk;
- if( ck->i_sample >= ck->i_sample_count )
+ return VLC_SUCCESS;
+}
+
+static int LeafIndexGetMoofPosByTime( demux_t *p_demux, const mtime_t i_target_time,
+ uint64_t *pi_pos, mtime_t *pi_mooftime )
+{
+ MP4_Box_t *p_tfra = MP4_BoxGet( p_demux->p_sys->p_root, "mfra/tfra" );
+ while ( p_tfra )
+ {
+ if ( p_tfra->i_type == ATOM_tfra )
+ {
+ int64_t i_pos = -1;
+ const MP4_Box_data_tfra_t *p_data = BOXDATA(p_tfra);
+ mp4_track_t *p_track = MP4_frg_GetTrackByID( p_demux, p_data->i_track_ID );
+ if ( p_track && (p_track->fmt.i_cat == AUDIO_ES || p_track->fmt.i_cat == VIDEO_ES) )
{
- msg_Err( p_demux, "sample %"PRIu32" of %"PRIu32"",
- ck->i_sample, ck->i_sample_count );
- return 0;
+ for ( uint32_t i = 0; i<p_data->i_number_of_entries; i += ( p_data->i_version == 1 ) ? 2 : 1 )
+ {
+ mtime_t i_time;
+ uint64_t i_offset;
+ if ( p_data->i_version == 1 )
+ {
+ i_time = *((uint64_t *)(p_data->p_time + i));
+ i_offset = *((uint64_t *)(p_data->p_moof_offset + i));
+ }
+ else
+ {
+ i_time = p_data->p_time[i];
+ i_offset = p_data->p_moof_offset[i];
+ }
+
+ if ( CLOCK_FREQ * i_time / p_track->i_timescale >= i_target_time )
+ {
+ if ( i_pos == -1 ) /* Not in this traf */
+ break;
+
+ *pi_pos = (uint64_t) i_pos;
+ *pi_mooftime = CLOCK_FREQ * i_time / p_track->i_timescale;
+ if ( p_track->fmt.i_cat == AUDIO_ES )
+ *pi_mooftime -= CLOCK_FREQ / p_track->fmt.audio.i_rate * p_data->p_sample_number[i];
+ else
+ *pi_mooftime -= CLOCK_FREQ / p_demux->p_sys->f_fps * p_data->p_sample_number[i];
+ return VLC_SUCCESS;
+ }
+ else
+ i_pos = i_offset;
+ }
}
+ }
+ p_tfra = p_tfra->p_next;
+ }
+ return VLC_EGENERIC;
+}
- uint32_t sample_size = ck->p_sample_size[ck->i_sample];
- p_block = block_Alloc( sample_size );
- uint8_t *src = ck->p_sample_data[ck->i_sample];
- memcpy( p_block->p_buffer, src, sample_size );
+static int LeafParseMDATwithMOOF( demux_t *p_demux, MP4_Box_t *p_moof )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ uint64_t i_pos;
+ assert( p_moof->i_type == ATOM_moof );
+ assert( p_sys->context.i_current_box_type == ATOM_mdat );
- ck->i_sample++;
- if( ck->i_sample == ck->i_sample_count )
- tk->b_has_non_empty_cchunk = false;
+ if ( p_sys->context.i_mdatbytesleft == 0 )
+ {
+ int i_ret = LeafMapTrafTrunContextes( p_demux, p_moof );
+ if ( i_ret != VLC_SUCCESS )
+ return i_ret;
- /* dts */
- p_block->i_dts = VLC_TS_0 + MP4_TrackGetDTS( p_demux, tk );
- /* pts */
- i_delta = MP4_TrackGetPTSDelta( p_demux, tk );
- if( i_delta != -1 )
- p_block->i_pts = p_block->i_dts + i_delta;
- else if( tk->fmt.i_cat != VIDEO_ES )
- p_block->i_pts = p_block->i_dts;
- else
- p_block->i_pts = VLC_TS_INVALID;
+ /* Ready mdat section */
+ uint8_t mdat[8];
+ int i_read = stream_Read( p_demux->s, &mdat, 8 );
+ p_sys->context.i_mdatbytesleft = GetDWBE( mdat );
+ if ( i_read < 8 || p_sys->context.i_mdatbytesleft < 8 ||
+ VLC_FOURCC( mdat[4], mdat[5], mdat[6], mdat[7] ) != ATOM_mdat )
+ {
+ if ( MP4_stream_Tell( p_demux->s, &i_pos ) )
+ msg_Err(p_demux, "No mdat atom at %"PRIu64, i_pos - i_read );
+ return VLC_EGENERIC;
+ }
+ p_sys->context.i_mdatbytesleft -= 8;
+ }
- es_out_Send( p_demux->out, tk->p_es, p_block );
+ if ( !MP4_stream_Tell( p_demux->s, &i_pos ) )
+ return VLC_EGENERIC;
+ if ( p_sys->b_smooth )
+ i_pos -= p_moof->i_pos;
+ mp4_track_t *p_track = LeafGetTrackByTrunPos( p_demux, i_pos, p_moof->i_pos );
+ if( p_track )
+ {
+ MP4_Box_data_tfhd_t *p_tfhd_data = p_track->context.BOXDATA(p_tfhd);
+ uint32_t i_trun_sample_default_duration = 0;
+ uint32_t i_trun_sample_default_size = 0;
- tk->i_sample++;
+ if ( p_track->context.p_trun )
+ {
+ /* Get defaults for this/these RUN */
+ if( p_tfhd_data->i_flags & MP4_TFHD_DFLT_SAMPLE_DURATION )
+ i_trun_sample_default_duration = p_tfhd_data->i_default_sample_duration;
- if( !tk->b_has_non_empty_cchunk )
- break;
+ if( p_tfhd_data->i_flags & MP4_TFHD_DFLT_SAMPLE_SIZE )
+ i_trun_sample_default_size = p_tfhd_data->i_default_sample_size;
+
+ if( !i_trun_sample_default_duration || !i_trun_sample_default_size )
+ {
+ MP4_Box_t *p_trex = MP4_BoxGet( p_demux->p_sys->p_root, "moov/mvex/trex");
+ if ( p_trex )
+ {
+ while( p_trex && BOXDATA(p_trex)->i_track_ID != p_tfhd_data->i_track_ID )
+ p_trex = p_trex->p_next;
+ if ( p_trex && !i_trun_sample_default_duration )
+ i_trun_sample_default_duration = BOXDATA(p_trex)->i_default_sample_duration;
+ if ( p_trex && !i_trun_sample_default_size )
+ i_trun_sample_default_size = BOXDATA(p_trex)->i_default_sample_size;
+ }
+ }
+
+ const MP4_Box_data_trun_t *p_trun_data = p_track->context.BOXDATA(p_trun);
+
+ /* NOW PARSE TRUN WITH MDAT */
+ int i_ret = LeafParseTRUN( p_demux, p_track,
+ i_trun_sample_default_duration, i_trun_sample_default_size,
+ p_trun_data, & p_sys->context.i_mdatbytesleft );
+ if ( i_ret != VLC_SUCCESS )
+ goto end;
+
+ p_track->context.p_trun = p_track->context.p_trun->p_next;
}
+
+ if ( p_sys->context.i_mdatbytesleft == 0 )
+ p_sys->context.i_current_box_type = 0;
+ return VLC_SUCCESS;
+ }
+
+end:
+ /* Skip if we didn't reach the end of mdat box */
+ if ( p_sys->context.i_mdatbytesleft > 0 )
+ {
+ msg_Warn( p_demux, "mdat had still %"PRIu32" bytes unparsed as samples", p_sys->context.i_mdatbytesleft - 8 );
+ stream_ReadU32( p_demux->s, NULL, p_sys->context.i_mdatbytesleft );
+ }
+
+ p_sys->context.i_current_box_type = 0;
+
+ return VLC_SUCCESS;
+}
+
+static int DemuxAsLeaf( demux_t *p_demux )
+{
+ demux_sys_t *p_sys = p_demux->p_sys;
+ unsigned i_track_selected = 0;
+
+ /* check for newly selected/unselected track */
+ for( unsigned i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ mp4_track_t *tk = &p_sys->track[i_track];
+ bool b;
+
+ if( !tk->b_ok || tk->b_chapter )
+ continue;
+
+ es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
+ msg_Dbg( p_demux, "track %u %s!", tk->i_track_ID, b ? "enabled" : "disabled" );
+
+ if( tk->b_selected && !b )
+ MP4_TrackUnselect( p_demux, tk );
+ else if( !tk->b_selected && b)
+ MP4_frg_TrackSelect( p_demux, tk );
+
+ if( tk->b_selected )
+ i_track_selected++;
}
+
+ if( i_track_selected <= 0 )
+ {
+ msg_Warn( p_demux, "no track selected, exiting..." );
+ return 0;
+ }
+
+ if ( p_sys->context.i_current_box_type != ATOM_mdat )
+ {
+ /* Othewise mdat is skipped. FIXME: mdat reading ! */
+ const uint8_t *p_peek;
+ int i_read = stream_Peek( p_demux->s, &p_peek, 8 );
+ if ( i_read < 8 )
+ return 0;
+
+ p_sys->context.i_current_box_type = VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] );
+
+ if ( p_sys->context.i_current_box_type != ATOM_mdat )
+ {
+ if ( ! BoxExistsInRootTree( p_sys->p_root, p_sys->context.i_current_box_type, stream_Tell( p_demux->s ) ) )
+ {// only if !b_probed ??
+ MP4_Box_t *p_vroot = LoadNextChunk( p_demux );
+ switch( p_sys->context.i_current_box_type )
+ {
+ case ATOM_moov:
+ case ATOM_moof:
+ /* create fragment */
+ AddFragment( p_demux, p_vroot->p_first );
+ //ft
+ default:
+ break;
+ }
+
+ /* Append to root */
+ p_sys->p_root->p_last->p_next = p_vroot->p_first;
+ p_sys->p_root->p_last = p_vroot->p_first;
+ p_vroot->p_last = NULL;
+ p_vroot->p_next = NULL;
+ p_vroot->p_first = NULL;
+ MP4_BoxFree( p_demux->s, p_vroot );
+ }
+ else
+ {
+ /* Skip */
+ msg_Err( p_demux, "skipping known chunk type %4.4s size %"PRIu32, (char*)& p_sys->context.i_current_box_type, GetDWBE( p_peek ) );
+ stream_Read( p_demux->s, NULL, GetDWBE( p_peek ) );
+ }
+ }
+ else
+ {
+ /* skip mdat header */
+ p_sys->context.p_fragment = GetFragmentByPos( p_demux,
+ stream_Tell( p_demux->s ) + 8, true );
+ }
+
+ }
+
+ if ( p_sys->context.i_current_box_type == ATOM_mdat )
+ {
+ assert(p_sys->context.p_fragment);
+ if ( p_sys->context.p_fragment )
+ switch( p_sys->context.p_fragment->p_moox->i_type )
+ {
+ case ATOM_moov://[ftyp/moov, mdat]+ -> [moof, mdat]+
+ LeafParseMDATwithMOOV( p_demux );
+ break;
+ case ATOM_moof:
+ LeafParseMDATwithMOOF( p_demux, p_sys->context.p_fragment->p_moox ); // BACKUP CHUNK!
+ break;
+ default:
+ msg_Err( p_demux, "fragment type %4.4s", (char*) &p_sys->context.p_fragment->p_moox->i_type );
+ break;
+ }
+ }
+
+ /* Get current time */
+ mtime_t i_lowest_dts = VLC_TS_INVALID;
+ mtime_t i_lowest_time = INT64_MAX;
+ for( unsigned int i_track = 0; i_track < p_sys->i_tracks; i_track++ )
+ {
+ const mp4_track_t *p_track = &p_sys->track[i_track];
+ if( !p_track->b_selected || ( p_track->fmt.i_cat != VIDEO_ES && p_track->fmt.i_cat != AUDIO_ES ) )
+ continue;
+
+ i_lowest_time = __MIN( i_lowest_time, p_track->i_time * p_sys->i_timescale / p_track->i_timescale );
+
+ if ( i_lowest_dts == VLC_TS_INVALID )
+ i_lowest_dts = CLOCK_FREQ * p_track->i_time / p_track->i_timescale;
+ else
+ i_lowest_dts = __MIN( i_lowest_dts, CLOCK_FREQ * p_track->i_time / p_track->i_timescale );
+ }
+
+ p_sys->i_time = i_lowest_time;
+ p_sys->i_pcr = i_lowest_dts;
+ es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
+
return 1;
}
projects / vlc / blobdiff