1 /*****************************************************************************
2 * mp4.c : MP4 file input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_plugin.h>
35 #include <vlc_demux.h>
37 #include <vlc_charset.h>
38 #include <vlc_iso_lang.h>
40 #include <vlc_input.h>
45 /*****************************************************************************
47 *****************************************************************************/
48 static int Open ( vlc_object_t * );
49 static void Close( vlc_object_t * );
52 set_category( CAT_INPUT )
53 set_subcategory( SUBCAT_INPUT_DEMUX )
54 set_description( N_("MP4 stream demuxer") )
55 set_shortname( N_("MP4") )
56 set_capability( "demux", 242 )
57 set_callbacks( Open, Close )
60 /*****************************************************************************
62 *****************************************************************************/
63 static int Demux ( demux_t * );
64 static int DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
65 static int Seek ( demux_t *, mtime_t );
66 static int Control ( demux_t *, int, va_list );
68 /* Contain all information about a chunk */
71 uint64_t i_offset; /* absolute position of this chunk in the file */
72 uint32_t i_sample_description_index; /* index for SampleEntry to use */
73 uint32_t i_sample_count; /* how many samples in this chunk */
74 uint32_t i_sample_first; /* index of the first sample in this chunk */
76 /* now provide way to calculate pts, dts, and offset without too
77 much memory and with fast access */
79 /* with this we can calculate dts/pts without waste memory */
80 uint64_t i_first_dts; /* DTS of the first sample */
81 uint64_t i_last_dts; /* DTS of the last sample */
82 uint32_t *p_sample_count_dts;
83 uint32_t *p_sample_delta_dts; /* dts delta */
85 uint32_t *p_sample_count_pts;
86 int32_t *p_sample_offset_pts; /* pts-dts */
88 /* TODO if needed add pts
89 but quickly *add* support for edts and seeking */
93 /* Contain all needed information for read all track with vlc */
96 unsigned int i_track_ID;/* this should be unique */
98 int b_ok; /* The track is usable */
99 int b_enable; /* is the trak enable by default */
100 bool b_selected; /* is the trak being played */
101 bool b_chapter; /* True when used for chapter only */
108 /* display size only ! */
112 /* more internal data */
113 uint64_t i_timescale; /* time scale for this track only */
116 int i_elst; /* current elst */
117 int64_t i_elst_time; /* current elst start time (in movie time scale)*/
118 MP4_Box_t *p_elst; /* elst (could be NULL) */
120 /* give the next sample to read, i_chunk is to find quickly where
121 the sample is located */
122 uint32_t i_sample; /* next sample to read */
123 uint32_t i_chunk; /* chunk where next sample is stored */
124 /* total count of chunk and sample */
125 uint32_t i_chunk_count;
126 uint32_t i_sample_count;
128 mp4_chunk_t *chunk; /* always defined for each chunk */
130 /* sample size, p_sample_size defined only if i_sample_size == 0
131 else i_sample_size is size for all sample */
132 uint32_t i_sample_size;
133 uint32_t *p_sample_size; /* XXX perhaps add file offset if take
134 too much time to do sumations each time*/
136 MP4_Box_t *p_stbl; /* will contain all timing information */
137 MP4_Box_t *p_stsd; /* will contain all data to initialize decoder */
138 MP4_Box_t *p_sample;/* point on actual sdsd */
149 MP4_Box_t *p_root; /* container for the whole file */
153 uint64_t i_time; /* time position of the presentation
154 * in movie timescale */
155 uint64_t i_timescale; /* movie time scale */
156 uint64_t i_duration; /* movie duration */
157 unsigned int i_tracks; /* number of tracks */
158 mp4_track_t *track; /* array of track */
159 float f_fps; /* number of frame per seconds */
162 MP4_Box_t *p_tref_chap;
165 input_title_t *p_title;
168 /*****************************************************************************
169 * Declaration of local function
170 *****************************************************************************/
171 static void MP4_TrackCreate ( demux_t *, mp4_track_t *, MP4_Box_t *, bool b_force_enable );
172 static void MP4_TrackDestroy( mp4_track_t * );
174 static int MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
175 static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
177 static int MP4_TrackSeek ( demux_t *, mp4_track_t *, mtime_t );
179 static uint64_t MP4_TrackGetPos ( mp4_track_t * );
180 static int MP4_TrackSampleSize( mp4_track_t * );
181 static int MP4_TrackNextSample( demux_t *, mp4_track_t * );
182 static void MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
184 static void MP4_UpdateSeekpoint( demux_t * );
185 static const char *MP4_ConvertMacCode( uint16_t );
187 /* Return time in s of a track */
188 static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
190 #define chunk p_track->chunk[p_track->i_chunk]
192 unsigned int i_index = 0;
193 unsigned int i_sample = p_track->i_sample - chunk.i_sample_first;
194 int64_t i_dts = chunk.i_first_dts;
196 while( i_sample > 0 )
198 if( i_sample > chunk.p_sample_count_dts[i_index] )
200 i_dts += chunk.p_sample_count_dts[i_index] *
201 chunk.p_sample_delta_dts[i_index];
202 i_sample -= chunk.p_sample_count_dts[i_index];
207 i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
214 /* now handle elst */
215 if( p_track->p_elst )
217 demux_sys_t *p_sys = p_demux->p_sys;
218 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
220 /* convert to offset */
221 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
222 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
223 elst->i_media_time[p_track->i_elst] > 0 )
225 i_dts -= elst->i_media_time[p_track->i_elst];
228 /* add i_elst_time */
229 i_dts += p_track->i_elst_time * p_track->i_timescale /
232 if( i_dts < 0 ) i_dts = 0;
235 return INT64_C(1000000) * i_dts / p_track->i_timescale;
238 static inline int64_t MP4_TrackGetPTSDelta( mp4_track_t *p_track )
240 mp4_chunk_t *ck = &p_track->chunk[p_track->i_chunk];
241 unsigned int i_index = 0;
242 unsigned int i_sample = p_track->i_sample - ck->i_sample_first;
244 if( ck->p_sample_count_pts == NULL || ck->p_sample_offset_pts == NULL )
247 for( i_index = 0;; i_index++ )
249 if( i_sample < ck->p_sample_count_pts[i_index] )
250 return ck->p_sample_offset_pts[i_index] * INT64_C(1000000) /
251 (int64_t)p_track->i_timescale;
253 i_sample -= ck->p_sample_count_pts[i_index];
257 static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
259 return INT64_C(1000000) * p_sys->i_time / p_sys->i_timescale;
262 static void LoadChapter( demux_t *p_demux );
264 /*****************************************************************************
265 * Open: check file and initializes MP4 structures
266 *****************************************************************************/
267 static int Open( vlc_object_t * p_this )
269 demux_t *p_demux = (demux_t *)p_this;
272 const uint8_t *p_peek;
283 /* A little test to see if it could be a mp4 */
284 if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 ) return VLC_EGENERIC;
286 switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
297 case VLC_FOURCC( 'p', 'n', 'o', 't' ):
304 stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_seekable );
307 msg_Warn( p_demux, "MP4 plugin discarded (unseekable)" );
311 /*Set exported functions */
312 p_demux->pf_demux = Demux;
313 p_demux->pf_control = Control;
315 /* create our structure that will contains all data */
316 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
317 memset( p_sys, 0, sizeof( demux_sys_t ) );
319 /* Now load all boxes ( except raw data ) */
320 if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
322 msg_Warn( p_demux, "MP4 plugin discarded (not a valid file)" );
326 MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
328 if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
330 switch( p_ftyp->data.p_ftyp->i_major_brand )
334 "ISO Media file (isom) version %d.",
335 p_ftyp->data.p_ftyp->i_minor_version );
339 "unrecognized major file specification (%4.4s).",
340 (char*)&p_ftyp->data.p_ftyp->i_major_brand );
346 msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
349 /* the file need to have one moov box */
350 if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
352 MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
356 msg_Err( p_demux, "MP4 plugin discarded (no moov box)" );
359 /* we have a free box as a moov, rename it */
360 p_foov->i_type = FOURCC_moov;
363 if( ( p_rmra = MP4_BoxGet( p_sys->p_root, "/moov/rmra" ) ) )
365 int i_count = MP4_BoxCount( p_rmra, "rmda" );
368 msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
370 input_thread_t *p_input = demux_GetParentInput( p_demux );
371 input_item_t *p_current = input_GetItem( p_input );
373 input_item_node_t *p_subitems = input_item_node_Create( p_current );
375 for( i = 0; i < i_count; i++ )
377 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
381 if( !p_rdrf || !( psz_ref = strdup( p_rdrf->data.p_rdrf->psz_ref ) ) )
385 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
387 msg_Dbg( p_demux, "new ref=`%s' type=%4.4s",
388 psz_ref, (char*)&i_ref_type );
390 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
392 if( strstr( psz_ref, "qt5gateQT" ) )
394 msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
397 if( !strncmp( psz_ref, "http://", 7 ) ||
398 !strncmp( psz_ref, "rtsp://", 7 ) )
405 char *psz_path = strdup( p_demux->psz_path );
406 char *end = strrchr( psz_path, '/' );
407 if( end ) end[1] = '\0';
408 else *psz_path = '\0';
410 if( asprintf( &psz_absolute, "%s://%s%s",
411 p_demux->psz_access, psz_path, psz_ref ) < 0 )
415 vlc_object_release( p_input) ;
420 psz_ref = psz_absolute;
423 msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
424 input_item_t *p_input = input_item_New( p_demux, psz_ref, NULL );
425 input_item_CopyOptions( p_current, p_input );
426 input_item_node_AppendItem( p_subitems, p_input );
427 vlc_gc_decref( p_input );
431 msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
432 (char*)&p_rdrf->data.p_rdrf->i_ref_type );
436 input_item_node_PostAndDelete( p_subitems );
437 vlc_object_release( p_input );
440 if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
444 msg_Err( p_demux, "cannot find /moov/mvhd" );
449 msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
450 p_demux->pf_demux = DemuxRef;
456 p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
457 if( p_sys->i_timescale == 0 )
459 msg_Err( p_this, "bad timescale" );
462 p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
465 if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
467 msg_Err( p_demux, "cannot find any /moov/trak" );
470 msg_Dbg( p_demux, "found %d track%c",
472 p_sys->i_tracks ? 's':' ' );
474 /* allocate memory */
475 p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
476 if( p_sys->track == NULL )
478 memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
480 /* Search the first chap reference (like quicktime) and
481 * check that at least 1 stream is enabled */
482 p_sys->p_tref_chap = NULL;
483 b_enabled_es = false;
484 for( i = 0; i < p_sys->i_tracks; i++ )
486 MP4_Box_t *p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
489 MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
490 if( p_tkhd && (p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED) )
493 MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
494 if( p_chap && p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
495 p_sys->p_tref_chap = p_chap;
498 /* now process each track and extract all usefull information */
499 for( i = 0; i < p_sys->i_tracks; i++ )
501 p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
502 MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak, !b_enabled_es );
504 if( p_sys->track[i].b_ok && !p_sys->track[i].b_chapter )
507 switch( p_sys->track[i].fmt.i_cat )
516 psz_cat = "subtitle";
524 msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
525 p_sys->track[i].i_track_ID, psz_cat,
526 p_sys->track[i].b_enable ? "enable":"disable",
527 p_sys->track[i].fmt.psz_language ?
528 p_sys->track[i].fmt.psz_language : "undef" );
530 else if( p_sys->track[i].b_ok && p_sys->track[i].b_chapter )
532 msg_Dbg( p_demux, "using track[Id 0x%x] for chapter language %s",
533 p_sys->track[i].i_track_ID,
534 p_sys->track[i].fmt.psz_language ?
535 p_sys->track[i].fmt.psz_language : "undef" );
539 msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
540 p_sys->track[i].i_track_ID );
545 LoadChapter( p_demux );
552 MP4_BoxFree( p_demux->s, p_sys->p_root );
558 /*****************************************************************************
559 * Demux: read packet and send them to decoders
560 *****************************************************************************
561 * TODO check for newly selected track (ie audio upt to now )
562 *****************************************************************************/
563 static int Demux( demux_t *p_demux )
565 demux_sys_t *p_sys = p_demux->p_sys;
566 unsigned int i_track;
569 unsigned int i_track_selected;
571 /* check for newly selected/unselected track */
572 for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
575 mp4_track_t *tk = &p_sys->track[i_track];
578 if( !tk->b_ok || tk->b_chapter ||
579 ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
584 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
586 if( tk->b_selected && !b )
588 MP4_TrackUnselect( p_demux, tk );
590 else if( !tk->b_selected && b)
592 MP4_TrackSelect( p_demux, tk, MP4_GetMoviePTS( p_sys ) );
601 if( i_track_selected <= 0 )
603 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
604 if( p_sys->i_timescale > 0 )
606 int64_t i_length = (mtime_t)1000000 *
607 (mtime_t)p_sys->i_duration /
608 (mtime_t)p_sys->i_timescale;
609 if( MP4_GetMoviePTS( p_sys ) >= i_length )
614 msg_Warn( p_demux, "no track selected, exiting..." );
619 MP4_UpdateSeekpoint( p_demux );
621 /* first wait for the good time to read a packet */
622 es_out_Control( p_demux->out, ES_OUT_SET_PCR, VLC_TS_0 + p_sys->i_pcr );
624 p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
626 /* we will read 100ms for each stream so ...*/
627 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
629 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
631 mp4_track_t *tk = &p_sys->track[i_track];
633 if( !tk->b_ok || tk->b_chapter || !tk->b_selected || tk->i_sample >= tk->i_sample_count )
636 while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
639 msg_Dbg( p_demux, "tk(%i)=%lld mv=%lld", i_track,
640 MP4_TrackGetDTS( p_demux, tk ),
641 MP4_GetMoviePTS( p_sys ) );
644 if( MP4_TrackSampleSize( tk ) > 0 )
650 if( stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
652 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
654 MP4_TrackUnselect( p_demux, tk );
660 stream_Block( p_demux->s, MP4_TrackSampleSize(tk) )) )
662 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
664 MP4_TrackUnselect( p_demux, tk );
668 if( tk->b_drms && tk->p_drms )
673 drms_get_p_key( tk->p_drms, p_key );
675 for( size_t i_pos = tk->p_skcr->data.p_skcr->i_init; i_pos < p_block->i_buffer; )
677 int n = __MIN( tk->p_skcr->data.p_skcr->i_encr, p_block->i_buffer - i_pos );
678 drms_decrypt( tk->p_drms, (uint32_t*)&p_block->p_buffer[i_pos], n, p_key );
680 i_pos += __MIN( tk->p_skcr->data.p_skcr->i_decr, p_block->i_buffer - i_pos );
685 drms_decrypt( tk->p_drms, (uint32_t*)p_block->p_buffer,
686 p_block->i_buffer, NULL );
689 else if( tk->fmt.i_cat == SPU_ES )
691 if( tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) &&
692 p_block->i_buffer >= 2 )
694 uint16_t i_size = GetWBE( p_block->p_buffer );
696 if( i_size + 2 <= p_block->i_buffer )
699 /* remove the length field, and append a '\0' */
700 memmove( &p_block->p_buffer[0],
701 &p_block->p_buffer[2], i_size );
702 p_block->p_buffer[i_size] = '\0';
703 p_block->i_buffer = i_size + 1;
705 /* convert \r -> \n */
706 while( ( p = strchr((char *) p_block->p_buffer, '\r' ) ) )
714 p_block->i_buffer = 0;
719 p_block->i_dts = VLC_TS_0 + MP4_TrackGetDTS( p_demux, tk );
721 i_delta = MP4_TrackGetPTSDelta( tk );
723 p_block->i_pts = p_block->i_dts + i_delta;
724 else if( tk->fmt.i_cat != VIDEO_ES )
725 p_block->i_pts = p_block->i_dts;
727 p_block->i_pts = VLC_TS_INVALID;
729 if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
730 es_out_Send( p_demux->out, tk->p_es, p_block );
734 if( MP4_TrackNextSample( p_demux, tk ) )
742 static void MP4_UpdateSeekpoint( demux_t *p_demux )
744 demux_sys_t *p_sys = p_demux->p_sys;
747 if( !p_sys->p_title )
749 i_time = MP4_GetMoviePTS( p_sys );
750 for( i = 0; i < p_sys->p_title->i_seekpoint; i++ )
752 if( i_time < p_sys->p_title->seekpoint[i]->i_time_offset )
757 if( i != p_demux->info.i_seekpoint && i >= 0 )
759 p_demux->info.i_seekpoint = i;
760 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
763 /*****************************************************************************
765 ******************************************************************************/
766 static int Seek( demux_t *p_demux, mtime_t i_date )
768 demux_sys_t *p_sys = p_demux->p_sys;
769 unsigned int i_track;
771 /* First update update global time */
772 p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
773 p_sys->i_pcr = i_date;
775 /* Now for each stream try to go to this time */
776 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
778 mp4_track_t *tk = &p_sys->track[i_track];
779 MP4_TrackSeek( p_demux, tk, i_date );
781 MP4_UpdateSeekpoint( p_demux );
783 es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_date );
788 /*****************************************************************************
790 *****************************************************************************/
791 static int Control( demux_t *p_demux, int i_query, va_list args )
793 demux_sys_t *p_sys = p_demux->p_sys;
800 case DEMUX_GET_POSITION:
801 pf = (double*)va_arg( args, double * );
802 if( p_sys->i_duration > 0 )
804 *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
812 case DEMUX_SET_POSITION:
813 f = (double)va_arg( args, double );
814 if( p_sys->i_timescale > 0 )
816 i64 = (int64_t)( f * (double)1000000 *
817 (double)p_sys->i_duration /
818 (double)p_sys->i_timescale );
819 return Seek( p_demux, i64 );
821 else return VLC_SUCCESS;
824 pi64 = (int64_t*)va_arg( args, int64_t * );
825 if( p_sys->i_timescale > 0 )
827 *pi64 = (mtime_t)1000000 *
828 (mtime_t)p_sys->i_time /
829 (mtime_t)p_sys->i_timescale;
835 i64 = (int64_t)va_arg( args, int64_t );
836 return Seek( p_demux, i64 );
838 case DEMUX_GET_LENGTH:
839 pi64 = (int64_t*)va_arg( args, int64_t * );
840 if( p_sys->i_timescale > 0 )
842 *pi64 = (mtime_t)1000000 *
843 (mtime_t)p_sys->i_duration /
844 (mtime_t)p_sys->i_timescale;
850 pf = (double*)va_arg( args, double* );
856 vlc_meta_t *p_meta = (vlc_meta_t *)va_arg( args, vlc_meta_t*);
857 MP4_Box_t *p_0xa9xxx;
859 MP4_Box_t *p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta/meta/ilst" );
862 p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta" );
869 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
870 p_0xa9xxx = p_0xa9xxx->p_next )
873 if( !p_0xa9xxx || !p_0xa9xxx->data.p_0xa9xxx )
876 /* FIXME FIXME: should convert from whatever the character
877 * encoding of MP4 meta data is to UTF-8. */
878 #define SET(fct) do { char *psz_utf = strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text ? p_0xa9xxx->data.p_0xa9xxx->psz_text : "" ); \
879 if( psz_utf ) { EnsureUTF8( psz_utf ); \
880 fct( p_meta, psz_utf ); free( psz_utf ); } } while(0)
882 /* XXX Becarefull p_udta can have box that are not 0xa9xx */
883 switch( p_0xa9xxx->i_type )
885 case FOURCC_0xa9nam: /* Full name */
886 SET( vlc_meta_SetTitle );
889 SET( vlc_meta_SetArtist );
892 SET( vlc_meta_SetArtist );
895 SET( vlc_meta_SetCopyright );
897 case FOURCC_0xa9day: /* Creation Date */
898 SET( vlc_meta_SetDate );
900 case FOURCC_0xa9des: /* Description */
901 SET( vlc_meta_SetDescription );
903 case FOURCC_0xa9gen: /* Genre */
904 SET( vlc_meta_SetGenre );
907 case FOURCC_0xa9alb: /* Album */
908 SET( vlc_meta_SetAlbum );
911 case FOURCC_0xa9trk: /* Track */
912 SET( vlc_meta_SetTrackNum );
915 case FOURCC_0xa9cmt: /* Commment */
916 SET( vlc_meta_SetDescription );
919 case FOURCC_0xa9url: /* URL */
920 SET( vlc_meta_SetURL );
923 case FOURCC_0xa9enc: /* Encoded By */
924 SET( vlc_meta_SetEncodedBy );
928 case FOURCC_0xa9inf: /* Information */
929 case FOURCC_0xa9dir: /* Director */
930 case FOURCC_0xa9dis: /* Disclaimer */
931 case FOURCC_0xa9req: /* Requirements */
932 case FOURCC_0xa9fmt: /* Original Format */
933 case FOURCC_0xa9dsa: /* Display Source As */
934 case FOURCC_0xa9hst: /* Host Computer */
935 case FOURCC_0xa9prd: /* Producer */
936 case FOURCC_0xa9prf: /* Performers */
937 case FOURCC_0xa9ope: /* Original Performer */
938 case FOURCC_0xa9src: /* Providers Source Content */
939 case FOURCC_0xa9wrt: /* Writer */
940 case FOURCC_0xa9com: /* Composer */
941 case FOURCC_WLOC: /* Window Location */
942 /* TODO one day, but they aren't really meaningfull */
953 case DEMUX_GET_TITLE_INFO:
955 input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
956 int *pi_int = (int*)va_arg( args, int* );
957 int *pi_title_offset = (int*)va_arg( args, int* );
958 int *pi_seekpoint_offset = (int*)va_arg( args, int* );
960 if( !p_sys->p_title )
964 *ppp_title = malloc( sizeof( input_title_t**) );
965 (*ppp_title)[0] = vlc_input_title_Duplicate( p_sys->p_title );
966 *pi_title_offset = 0;
967 *pi_seekpoint_offset = 0;
970 case DEMUX_SET_TITLE:
972 const int i_title = (int)va_arg( args, int );
973 if( !p_sys->p_title || i_title != 0 )
977 case DEMUX_SET_SEEKPOINT:
979 const int i_seekpoint = (int)va_arg( args, int );
980 if( !p_sys->p_title )
982 return Seek( p_demux, p_sys->p_title->seekpoint[i_seekpoint]->i_time_offset );
985 case DEMUX_SET_NEXT_DEMUX_TIME:
986 case DEMUX_SET_GROUP:
987 case DEMUX_HAS_UNSUPPORTED_META:
988 case DEMUX_GET_ATTACHMENTS:
992 msg_Warn( p_demux, "control query %u unimplemented", i_query );
997 /*****************************************************************************
998 * Close: frees unused data
999 *****************************************************************************/
1000 static void Close ( vlc_object_t * p_this )
1002 demux_t * p_demux = (demux_t *)p_this;
1003 demux_sys_t *p_sys = p_demux->p_sys;
1004 unsigned int i_track;
1006 msg_Dbg( p_demux, "freeing all memory" );
1008 MP4_BoxFree( p_demux->s, p_sys->p_root );
1009 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
1011 MP4_TrackDestroy( &p_sys->track[i_track] );
1013 FREENULL( p_sys->track );
1015 if( p_sys->p_title )
1016 vlc_input_title_Delete( p_sys->p_title );
1023 /****************************************************************************
1024 * Local functions, specific to vlc
1025 ****************************************************************************/
1027 static void LoadChapterGpac( demux_t *p_demux, MP4_Box_t *p_chpl )
1029 demux_sys_t *p_sys = p_demux->p_sys;
1032 p_sys->p_title = vlc_input_title_New();
1033 for( i = 0; i < p_chpl->data.p_chpl->i_chapter; i++ )
1035 seekpoint_t *s = vlc_seekpoint_New();
1037 s->psz_name = strdup( p_chpl->data.p_chpl->chapter[i].psz_name );
1038 EnsureUTF8( s->psz_name );
1039 s->i_time_offset = p_chpl->data.p_chpl->chapter[i].i_start / 10;
1040 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1043 static void LoadChapterApple( demux_t *p_demux, mp4_track_t *tk )
1045 demux_sys_t *p_sys = p_demux->p_sys;
1047 for( tk->i_sample = 0; tk->i_sample < tk->i_sample_count; tk->i_sample++ )
1049 const int64_t i_dts = MP4_TrackGetDTS( p_demux, tk );
1050 const int64_t i_pts_delta = MP4_TrackGetPTSDelta( tk );
1051 const unsigned int i_size = MP4_TrackSampleSize( tk );
1053 if( i_size > 0 && !stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
1056 const int i_read = stream_Read( p_demux->s, p_buffer, __MIN( sizeof(p_buffer), i_size ) );
1057 const int i_len = __MIN( GetWBE(p_buffer), i_read-2 );
1061 seekpoint_t *s = vlc_seekpoint_New();
1063 s->psz_name = strndup( &p_buffer[2], i_len );
1064 EnsureUTF8( s->psz_name );
1066 s->i_time_offset = i_dts + __MAX( i_pts_delta, 0 );
1068 if( !p_sys->p_title )
1069 p_sys->p_title = vlc_input_title_New();
1070 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1073 if( tk->i_sample+1 >= tk->chunk[tk->i_chunk].i_sample_first +
1074 tk->chunk[tk->i_chunk].i_sample_count )
1078 static void LoadChapter( demux_t *p_demux )
1080 demux_sys_t *p_sys = p_demux->p_sys;
1083 if( ( p_chpl = MP4_BoxGet( p_sys->p_root, "/moov/udta/chpl" ) ) && p_chpl->data.p_chpl->i_chapter > 0 )
1085 LoadChapterGpac( p_demux, p_chpl );
1087 else if( p_sys->p_tref_chap )
1089 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
1092 /* Load the first subtitle track like quicktime */
1093 for( i = 0; i < p_chap->i_entry_count; i++ )
1095 for( j = 0; j < p_sys->i_tracks; j++ )
1097 mp4_track_t *tk = &p_sys->track[j];
1098 if( tk->b_ok && tk->i_track_ID == p_chap->i_track_ID[i] &&
1099 tk->fmt.i_cat == SPU_ES && tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) )
1102 if( j < p_sys->i_tracks )
1104 LoadChapterApple( p_demux, &p_sys->track[j] );
1111 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
1112 static int TrackCreateChunksIndex( demux_t *p_demux,
1113 mp4_track_t *p_demux_track )
1115 MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
1118 unsigned int i_chunk;
1119 unsigned int i_index, i_last;
1121 if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
1122 !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
1123 ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
1125 return( VLC_EGENERIC );
1128 p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
1129 if( !p_demux_track->i_chunk_count )
1131 msg_Warn( p_demux, "no chunk defined" );
1132 return( VLC_EGENERIC );
1134 p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
1135 sizeof( mp4_chunk_t ) );
1136 if( p_demux_track->chunk == NULL )
1141 /* first we read chunk offset */
1142 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1144 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1146 ck->i_offset = p_co64->data.p_co64->i_chunk_offset[i_chunk];
1148 ck->i_first_dts = 0;
1149 ck->p_sample_count_dts = NULL;
1150 ck->p_sample_delta_dts = NULL;
1151 ck->p_sample_count_pts = NULL;
1152 ck->p_sample_offset_pts = NULL;
1155 /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
1156 to be used for the sample XXX begin to 1
1157 We construct it begining at the end */
1158 i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
1159 i_index = p_stsc->data.p_stsc->i_entry_count;
1162 msg_Warn( p_demux, "cannot read chunk table or table empty" );
1163 return( VLC_EGENERIC );
1168 for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1169 i_chunk < i_last; i_chunk++ )
1171 if( i_chunk >= p_demux_track->i_chunk_count )
1173 msg_Warn( p_demux, "corrupted chunk table" );
1174 return VLC_EGENERIC;
1177 p_demux_track->chunk[i_chunk].i_sample_description_index =
1178 p_stsc->data.p_stsc->i_sample_description_index[i_index];
1179 p_demux_track->chunk[i_chunk].i_sample_count =
1180 p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
1182 i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1185 p_demux_track->chunk[0].i_sample_first = 0;
1186 for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1188 p_demux_track->chunk[i_chunk].i_sample_first =
1189 p_demux_track->chunk[i_chunk-1].i_sample_first +
1190 p_demux_track->chunk[i_chunk-1].i_sample_count;
1193 msg_Dbg( p_demux, "track[Id 0x%x] read %d chunk",
1194 p_demux_track->i_track_ID, p_demux_track->i_chunk_count );
1199 static int TrackCreateSamplesIndex( demux_t *p_demux,
1200 mp4_track_t *p_demux_track )
1203 MP4_Box_data_stsz_t *stsz;
1204 MP4_Box_data_stts_t *stts;
1205 /* TODO use also stss and stsh table for seeking */
1206 /* FIXME use edit table */
1211 int64_t i_index_sample_used;
1216 * Gives the sample size for each samples. There is also a stz2 table
1217 * (compressed form) that we need to implement TODO */
1218 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stsz" );
1221 /* FIXME and stz2 */
1222 msg_Warn( p_demux, "cannot find STSZ box" );
1223 return VLC_EGENERIC;
1225 stsz = p_box->data.p_stsz;
1228 * Gives mapping between sample and decoding time
1230 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
1233 msg_Warn( p_demux, "cannot find STTS box" );
1234 return VLC_EGENERIC;
1236 stts = p_box->data.p_stts;
1238 /* Use stsz table to create a sample number -> sample size table */
1239 p_demux_track->i_sample_count = stsz->i_sample_count;
1240 if( stsz->i_sample_size )
1242 /* 1: all sample have the same size, so no need to construct a table */
1243 p_demux_track->i_sample_size = stsz->i_sample_size;
1244 p_demux_track->p_sample_size = NULL;
1248 /* 2: each sample can have a different size */
1249 p_demux_track->i_sample_size = 0;
1250 p_demux_track->p_sample_size =
1251 calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
1252 if( p_demux_track->p_sample_size == NULL )
1255 for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
1257 p_demux_track->p_sample_size[i_sample] =
1258 stsz->i_entry_size[i_sample];
1262 /* Use stts table to create a sample number -> dts table.
1263 * XXX: if we don't want to waste too much memory, we can't expand
1264 * the box! so each chunk will contain an "extract" of this table
1265 * for fast research (problem with raw stream where a sample is sometime
1266 * just channels*bits_per_sample/8 */
1269 i_index = 0; i_index_sample_used = 0;
1270 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1272 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1273 int64_t i_entry, i_sample_count, i;
1275 /* save first dts */
1276 ck->i_first_dts = i_next_dts;
1277 ck->i_last_dts = i_next_dts;
1279 /* count how many entries are needed for this chunk
1280 * for p_sample_delta_dts and p_sample_count_dts */
1281 i_sample_count = ck->i_sample_count;
1284 while( i_sample_count > 0 )
1286 i_sample_count -= stts->i_sample_count[i_index+i_entry];
1287 /* don't count already used sample in this entry */
1289 i_sample_count += i_index_sample_used;
1295 ck->p_sample_count_dts = calloc( i_entry, sizeof( uint32_t ) );
1296 ck->p_sample_delta_dts = calloc( i_entry, sizeof( uint32_t ) );
1298 if( !ck->p_sample_count_dts || !ck->p_sample_delta_dts )
1302 i_sample_count = ck->i_sample_count;
1303 for( i = 0; i < i_entry; i++ )
1308 i_rest = stts->i_sample_count[i_index] - i_index_sample_used;
1310 i_used = __MIN( i_rest, i_sample_count );
1312 i_index_sample_used += i_used;
1313 i_sample_count -= i_used;
1314 i_next_dts += i_used * stts->i_sample_delta[i_index];
1316 ck->p_sample_count_dts[i] = i_used;
1317 ck->p_sample_delta_dts[i] = stts->i_sample_delta[i_index];
1319 ck->i_last_dts = i_next_dts - ck->p_sample_delta_dts[i];
1321 if( i_index_sample_used >= stts->i_sample_count[i_index] )
1324 i_index_sample_used = 0;
1330 * Gives the delta between decoding time (dts) and composition table (pts)
1332 p_box = MP4_BoxGet( p_demux_track->p_stbl, "ctts" );
1335 MP4_Box_data_ctts_t *ctts = p_box->data.p_ctts;
1337 msg_Warn( p_demux, "CTTS table" );
1339 /* Create pts-dts table per chunk */
1340 i_index = 0; i_index_sample_used = 0;
1341 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1343 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1344 int64_t i_entry, i_sample_count, i;
1346 /* count how many entries are needed for this chunk
1347 * for p_sample_delta_dts and p_sample_count_dts */
1348 i_sample_count = ck->i_sample_count;
1351 while( i_sample_count > 0 )
1353 i_sample_count -= ctts->i_sample_count[i_index+i_entry];
1355 /* don't count already used sample in this entry */
1357 i_sample_count += i_index_sample_used;
1363 ck->p_sample_count_pts = calloc( i_entry, sizeof( uint32_t ) );
1364 ck->p_sample_offset_pts = calloc( i_entry, sizeof( int32_t ) );
1365 if( !ck->p_sample_count_pts || !ck->p_sample_offset_pts )
1369 i_sample_count = ck->i_sample_count;
1370 for( i = 0; i < i_entry; i++ )
1375 i_rest = ctts->i_sample_count[i_index] -
1376 i_index_sample_used;
1378 i_used = __MIN( i_rest, i_sample_count );
1380 i_index_sample_used += i_used;
1381 i_sample_count -= i_used;
1383 ck->p_sample_count_pts[i] = i_used;
1384 ck->p_sample_offset_pts[i] = ctts->i_sample_offset[i_index];
1386 if( i_index_sample_used >= ctts->i_sample_count[i_index] )
1389 i_index_sample_used = 0;
1395 msg_Dbg( p_demux, "track[Id 0x%x] read %d samples length:%"PRId64"s",
1396 p_demux_track->i_track_ID, p_demux_track->i_sample_count,
1397 i_next_dts / p_demux_track->i_timescale );
1403 * It computes the sample rate for a video track using the given sample
1406 static void TrackGetESSampleRate( unsigned *pi_num, unsigned *pi_den,
1407 const mp4_track_t *p_track,
1408 unsigned i_sd_index,
1414 if( p_track->i_chunk_count <= 0 )
1418 const mp4_chunk_t *p_chunk = &p_track->chunk[i_chunk];
1419 while( p_chunk > &p_track->chunk[0] &&
1420 p_chunk[-1].i_sample_description_index == i_sd_index )
1425 uint64_t i_sample = 0;
1426 uint64_t i_first_dts = p_chunk->i_first_dts;
1427 uint64_t i_last_dts;
1430 i_sample += p_chunk->i_sample_count;
1431 i_last_dts = p_chunk->i_last_dts;
1434 while( p_chunk < &p_track->chunk[p_track->i_chunk_count] &&
1435 p_chunk->i_sample_description_index == i_sd_index );
1437 if( i_sample > 1 && i_first_dts < i_last_dts )
1438 vlc_ureduce( pi_num, pi_den,
1439 ( i_sample - 1) * p_track->i_timescale,
1440 i_last_dts - i_first_dts,
1446 * Create ES and PES to init decoder if needed, for a track starting at i_chunk
1448 static int TrackCreateES( demux_t *p_demux, mp4_track_t *p_track,
1449 unsigned int i_chunk, es_out_id_t **pp_es )
1451 const unsigned i_sample_description_index =
1452 p_track->chunk[i_chunk].i_sample_description_index;
1453 MP4_Box_t *p_sample;
1461 if( !i_sample_description_index )
1463 msg_Warn( p_demux, "invalid SampleEntry index (track[Id 0x%x])",
1464 p_track->i_track_ID );
1465 return VLC_EGENERIC;
1468 p_sample = MP4_BoxGet( p_track->p_stsd, "[%d]",
1469 i_sample_description_index - 1 );
1472 ( !p_sample->data.p_data && p_track->fmt.i_cat != SPU_ES ) )
1474 msg_Warn( p_demux, "cannot find SampleEntry (track[Id 0x%x])",
1475 p_track->i_track_ID );
1476 return VLC_EGENERIC;
1479 p_track->p_sample = p_sample;
1481 if( ( p_frma = MP4_BoxGet( p_track->p_sample, "sinf/frma" ) ) )
1483 msg_Warn( p_demux, "Original Format Box: %4.4s", (char *)&p_frma->data.p_frma->i_type );
1485 p_sample->i_type = p_frma->data.p_frma->i_type;
1488 p_enda = MP4_BoxGet( p_sample, "wave/enda" );
1490 p_enda = MP4_BoxGet( p_sample, "enda" );
1491 msg_Err(p_demux, "ENDA=%p %d codec=%4.4s", p_enda, p_enda ? p_enda->data.p_enda->i_little_endian : -1, &p_sample->i_type );
1493 if( p_track->fmt.i_cat == AUDIO_ES && ( p_track->i_sample_size == 1 || p_track->i_sample_size == 2 ) )
1495 MP4_Box_data_sample_soun_t *p_soun;
1497 p_soun = p_sample->data.p_sample_soun;
1499 if( p_soun->i_qt_version == 0 )
1501 switch( p_sample->i_type )
1503 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
1504 p_soun->i_qt_version = 1;
1505 p_soun->i_sample_per_packet = 64;
1506 p_soun->i_bytes_per_packet = 34;
1507 p_soun->i_bytes_per_frame = 34 * p_soun->i_channelcount;
1508 p_soun->i_bytes_per_sample = 2;
1510 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
1511 p_soun->i_qt_version = 1;
1512 p_soun->i_sample_per_packet = 6;
1513 p_soun->i_bytes_per_packet = 2;
1514 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1515 p_soun->i_bytes_per_sample = 2;
1517 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
1518 p_soun->i_qt_version = 1;
1519 p_soun->i_sample_per_packet = 12;
1520 p_soun->i_bytes_per_packet = 2;
1521 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1522 p_soun->i_bytes_per_sample = 2;
1524 case VLC_FOURCC( 'a', 'l', 'a', 'w' ):
1525 case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
1526 p_soun->i_samplesize = 8;
1528 case VLC_FOURCC( 'N', 'O', 'N', 'E' ):
1529 case VLC_FOURCC( 'r', 'a', 'w', ' ' ):
1530 case VLC_FOURCC( 't', 'w', 'o', 's' ):
1531 case VLC_FOURCC( 's', 'o', 'w', 't' ):
1532 /* What would be the fun if you could trust the .mov */
1533 p_track->i_sample_size = ((p_soun->i_samplesize+7)/8) * p_soun->i_channelcount;
1540 else if( p_soun->i_qt_version == 1 && p_soun->i_sample_per_packet <= 0 )
1542 p_soun->i_qt_version = 0;
1547 switch( p_track->fmt.i_cat )
1550 p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
1551 p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
1552 p_track->fmt.video.i_bits_per_pixel =
1553 p_sample->data.p_sample_vide->i_depth;
1555 /* fall on display size */
1556 if( p_track->fmt.video.i_width <= 0 )
1557 p_track->fmt.video.i_width = p_track->i_width;
1558 if( p_track->fmt.video.i_height <= 0 )
1559 p_track->fmt.video.i_height = p_track->i_height;
1561 /* Find out apect ratio from display size */
1562 if( p_track->i_width > 0 && p_track->i_height > 0 &&
1563 /* Work-around buggy muxed files */
1564 p_sample->data.p_sample_vide->i_width != p_track->i_width )
1566 p_track->fmt.video.i_sar_num = p_track->i_width * p_track->fmt.video.i_height;
1567 p_track->fmt.video.i_sar_den = p_track->i_height * p_track->fmt.video.i_width;
1570 /* Support for cropping (eg. in H263 files) */
1571 p_track->fmt.video.i_visible_width = p_track->fmt.video.i_width;
1572 p_track->fmt.video.i_visible_height = p_track->fmt.video.i_height;
1575 TrackGetESSampleRate( &p_track->fmt.video.i_frame_rate,
1576 &p_track->fmt.video.i_frame_rate_base,
1577 p_track, i_sample_description_index, i_chunk );
1578 p_demux->p_sys->f_fps = (float)p_track->fmt.video.i_frame_rate /
1579 (float)p_track->fmt.video.i_frame_rate_base;
1583 p_track->fmt.audio.i_channels =
1584 p_sample->data.p_sample_soun->i_channelcount;
1585 p_track->fmt.audio.i_rate =
1586 p_sample->data.p_sample_soun->i_sampleratehi;
1587 p_track->fmt.i_bitrate = p_sample->data.p_sample_soun->i_channelcount *
1588 p_sample->data.p_sample_soun->i_sampleratehi *
1589 p_sample->data.p_sample_soun->i_samplesize;
1590 p_track->fmt.audio.i_bitspersample =
1591 p_sample->data.p_sample_soun->i_samplesize;
1593 if( p_track->i_sample_size != 0 &&
1594 p_sample->data.p_sample_soun->i_qt_version == 1 && p_sample->data.p_sample_soun->i_sample_per_packet <= 0 )
1596 msg_Err( p_demux, "Invalid sample per packet value for qt_version 1" );
1597 return VLC_EGENERIC;
1606 /* It's a little ugly but .. there are special cases */
1607 switch( p_sample->i_type )
1609 case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
1610 case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
1612 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1613 p_track->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
1614 if( p_track->i_sample_size > 1 )
1615 p_soun->i_qt_version = 0;
1618 case( VLC_FOURCC( 'a', 'c', '-', '3' ) ):
1620 MP4_Box_t *p_dac3_box = MP4_BoxGet( p_sample, "dac3", 0 );
1622 p_track->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
1625 static const int pi_bitrate[] = {
1632 MP4_Box_data_dac3_t *p_dac3 = p_dac3_box->data.p_dac3;
1633 p_track->fmt.audio.i_channels = 0;
1634 p_track->fmt.i_bitrate = 0;
1635 if( p_dac3->i_bitrate_code < sizeof(pi_bitrate)/sizeof(*pi_bitrate) )
1636 p_track->fmt.i_bitrate = pi_bitrate[p_dac3->i_bitrate_code] * 1000;
1637 p_track->fmt.audio.i_bitspersample = 0;
1641 case( VLC_FOURCC( 'e', 'c', '-', '3' ) ):
1643 p_track->fmt.i_codec = VLC_FOURCC( 'e', 'a', 'c', '3' );
1647 case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
1648 case( VLC_FOURCC( 'N', 'O', 'N', 'E' ) ):
1650 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1652 if(p_soun && (p_soun->i_samplesize+7)/8 == 1 )
1653 p_track->fmt.i_codec = VLC_FOURCC( 'u', '8', ' ', ' ' );
1655 p_track->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1657 /* Buggy files workaround */
1658 if( p_sample->data.p_sample_soun && (p_track->i_timescale !=
1659 p_sample->data.p_sample_soun->i_sampleratehi) )
1661 MP4_Box_data_sample_soun_t *p_soun =
1662 p_sample->data.p_sample_soun;
1664 msg_Warn( p_demux, "i_timescale (%"PRIu64") != i_sampleratehi "
1665 "(%u), making both equal (report any problem).",
1666 p_track->i_timescale, p_soun->i_sampleratehi );
1668 if( p_soun->i_sampleratehi )
1669 p_track->i_timescale = p_soun->i_sampleratehi;
1671 p_soun->i_sampleratehi = p_track->i_timescale;
1676 case( VLC_FOURCC( 's', '2', '6', '3' ) ):
1677 p_track->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' );
1680 case( VLC_FOURCC( 't', 'e', 'x', 't' ) ):
1681 case( VLC_FOURCC( 't', 'x', '3', 'g' ) ):
1682 p_track->fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
1683 /* FIXME: Not true, could be UTF-16 with a Byte Order Mark (0xfeff) */
1684 /* FIXME UTF-8 doesn't work here ? */
1685 if( p_track->b_mac_encoding )
1686 p_track->fmt.subs.psz_encoding = strdup( "MAC" );
1688 p_track->fmt.subs.psz_encoding = strdup( "UTF-8" );
1691 case VLC_FOURCC('y','v','1','2'):
1692 p_track->fmt.i_codec = VLC_FOURCC('Y','V','1','2');
1694 case VLC_FOURCC('y','u','v','2'):
1695 p_track->fmt.i_codec = VLC_FOURCC('Y','U','Y','2');
1698 case VLC_FOURCC('i','n','2','4'):
1699 p_track->fmt.i_codec = p_enda && p_enda->data.p_enda->i_little_endian == 1 ?
1700 VLC_FOURCC('4','2','n','i') : VLC_FOURCC('i','n','2','4');
1702 case VLC_FOURCC('f','l','3','2'):
1703 p_track->fmt.i_codec = p_enda && p_enda->data.p_enda->i_little_endian == 1 ?
1704 VLC_CODEC_F32L : VLC_CODEC_F32B;
1706 case VLC_FOURCC('f','l','6','4'):
1707 p_track->fmt.i_codec = p_enda && p_enda->data.p_enda->i_little_endian == 1 ?
1708 VLC_CODEC_F64L : VLC_CODEC_F64B;
1712 p_track->fmt.i_codec = p_sample->i_type;
1716 /* now see if esds is present and if so create a data packet
1717 with decoder_specific_info */
1718 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
1719 if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
1720 ( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
1721 ( p_esds->data.p_esds )&&
1724 /* First update information based on i_objectTypeIndication */
1725 switch( p_decconfig->i_objectTypeIndication )
1727 case( 0x20 ): /* MPEG4 VIDEO */
1728 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','v' );
1731 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1738 case( 0x65): /* MPEG2 video */
1739 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1741 /* Theses are MPEG2-AAC */
1742 case( 0x66): /* main profile */
1743 case( 0x67): /* Low complexity profile */
1744 case( 0x68): /* Scaleable Sampling rate profile */
1745 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1747 /* true MPEG 2 audio */
1749 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1751 case( 0x6a): /* MPEG1 video */
1752 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1754 case( 0x6b): /* MPEG1 audio */
1755 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1757 case( 0x6c ): /* jpeg */
1758 p_track->fmt.i_codec = VLC_FOURCC( 'j','p','e','g' );
1760 case( 0x6d ): /* png */
1761 p_track->fmt.i_codec = VLC_FOURCC( 'p','n','g',' ' );
1763 case( 0x6e ): /* jpeg200 */
1764 p_track->fmt.i_codec = VLC_FOURCC( 'M','J','2','C' );
1766 case( 0xa3 ): /* vc1 */
1767 p_track->fmt.i_codec = VLC_FOURCC( 'W','V','C','1' );
1771 case( 0xe0 ): /* NeroDigital: dvd subs */
1772 if( p_track->fmt.i_cat == SPU_ES )
1774 p_track->fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
1775 if( p_track->i_width > 0 )
1776 p_track->fmt.subs.spu.i_original_frame_width = p_track->i_width;
1777 if( p_track->i_height > 0 )
1778 p_track->fmt.subs.spu.i_original_frame_height = p_track->i_height;
1781 case( 0xe1 ): /* QCelp for 3gp */
1782 if( p_track->fmt.i_cat == AUDIO_ES )
1784 p_track->fmt.i_codec = VLC_FOURCC( 'Q','c','l','p' );
1790 /* Unknown entry, but don't touch i_fourcc */
1792 "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
1793 p_decconfig->i_objectTypeIndication,
1794 p_track->i_track_ID );
1797 p_track->fmt.i_extra = p_decconfig->i_decoder_specific_info_len;
1798 if( p_track->fmt.i_extra > 0 )
1800 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1801 memcpy( p_track->fmt.p_extra, p_decconfig->p_decoder_specific_info,
1802 p_track->fmt.i_extra );
1807 switch( p_sample->i_type )
1809 /* qt decoder, send the complete chunk */
1810 case VLC_FOURCC ('h', 'd', 'v', '1'): // HDV 720p30
1811 case VLC_FOURCC ('h', 'd', 'v', '2'): // HDV 1080i60
1812 case VLC_FOURCC ('h', 'd', 'v', '3'): // HDV 1080i50
1813 case VLC_FOURCC ('h', 'd', 'v', '5'): // HDV 720p25
1814 case VLC_FOURCC ('m', 'x', '5', 'n'): // MPEG2 IMX NTSC 525/60 50mb/s produced by FCP
1815 case VLC_FOURCC ('m', 'x', '5', 'p'): // MPEG2 IMX PAL 625/60 50mb/s produced by FCP
1816 case VLC_FOURCC ('m', 'x', '4', 'n'): // MPEG2 IMX NTSC 525/60 40mb/s produced by FCP
1817 case VLC_FOURCC ('m', 'x', '4', 'p'): // MPEG2 IMX PAL 625/60 40mb/s produced by FCP
1818 case VLC_FOURCC ('m', 'x', '3', 'n'): // MPEG2 IMX NTSC 525/60 30mb/s produced by FCP
1819 case VLC_FOURCC ('m', 'x', '3', 'p'): // MPEG2 IMX PAL 625/50 30mb/s produced by FCP
1820 case VLC_FOURCC ('x', 'd', 'v', '2'): // XDCAM HD 1080i60
1821 case VLC_FOURCC ('A', 'V', 'm', 'p'): // AVID IMX PAL
1822 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1824 /* qt decoder, send the complete chunk */
1825 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1826 case VLC_FOURCC( 'S', 'V', 'Q', '1' ):
1827 case VLC_FOURCC( 'V', 'P', '3', '1' ):
1828 case VLC_FOURCC( '3', 'I', 'V', '1' ):
1829 case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
1830 p_track->fmt.i_extra =
1831 p_sample->data.p_sample_vide->i_qt_image_description;
1832 if( p_track->fmt.i_extra > 0 )
1834 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1835 memcpy( p_track->fmt.p_extra,
1836 p_sample->data.p_sample_vide->p_qt_image_description,
1837 p_track->fmt.i_extra);
1840 case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
1841 case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
1842 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1843 case VLC_FOURCC( 'a', 'l', 'a', 'c' ):
1844 p_track->fmt.i_extra =
1845 p_sample->data.p_sample_soun->i_qt_description;
1846 if( p_track->fmt.i_extra > 0 )
1848 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1849 memcpy( p_track->fmt.p_extra,
1850 p_sample->data.p_sample_soun->p_qt_description,
1851 p_track->fmt.i_extra);
1855 /* avc1: send avcC (h264 without annexe B, ie without start code)*/
1856 case VLC_FOURCC( 'a', 'v', 'c', '1' ):
1858 MP4_Box_t *p_avcC = MP4_BoxGet( p_sample, "avcC" );
1862 p_track->fmt.i_extra = p_avcC->data.p_avcC->i_avcC;
1863 if( p_track->fmt.i_extra > 0 )
1865 p_track->fmt.p_extra = malloc( p_avcC->data.p_avcC->i_avcC );
1866 memcpy( p_track->fmt.p_extra, p_avcC->data.p_avcC->p_avcC,
1867 p_track->fmt.i_extra );
1872 msg_Err( p_demux, "missing avcC" );
1877 case VLC_FOURCC('m','s',0x00,0x02):
1878 case VLC_FOURCC('m','s',0x00,0x11):
1879 case VLC_FOURCC('Q','c','l','p'):
1880 p_track->fmt.audio.i_blockalign = p_sample->data.p_sample_soun->i_bytes_per_frame;
1891 *pp_es = es_out_Add( p_demux->out, &p_track->fmt );
1896 /* given a time it return sample/chunk
1897 * it also update elst field of the track
1899 static int TrackTimeToSampleChunk( demux_t *p_demux, mp4_track_t *p_track,
1900 int64_t i_start, uint32_t *pi_chunk,
1901 uint32_t *pi_sample )
1903 demux_sys_t *p_sys = p_demux->p_sys;
1906 unsigned int i_sample;
1907 unsigned int i_chunk;
1910 /* FIXME see if it's needed to check p_track->i_chunk_count */
1911 if( p_track->i_chunk_count == 0 )
1912 return( VLC_EGENERIC );
1914 /* handle elst (find the correct one) */
1915 MP4_TrackSetELST( p_demux, p_track, i_start );
1916 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
1918 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
1919 int64_t i_mvt= i_start * p_sys->i_timescale / (int64_t)1000000;
1921 /* now calculate i_start for this elst */
1923 i_start -= p_track->i_elst_time * INT64_C(1000000) / p_sys->i_timescale;
1931 /* to track time scale */
1932 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1933 /* add elst offset */
1934 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
1935 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
1936 elst->i_media_time[p_track->i_elst] > 0 )
1938 i_start += elst->i_media_time[p_track->i_elst];
1941 msg_Dbg( p_demux, "elst (%d) gives %"PRId64"ms (movie)-> %"PRId64
1942 "ms (track)", p_track->i_elst,
1943 i_mvt * 1000 / p_sys->i_timescale,
1944 i_start * 1000 / p_track->i_timescale );
1948 /* convert absolute time to in timescale unit */
1949 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1952 /* we start from sample 0/chunk 0, hope it won't take too much time */
1953 /* *** find good chunk *** */
1954 for( i_chunk = 0; ; i_chunk++ )
1956 if( i_chunk + 1 >= p_track->i_chunk_count )
1958 /* at the end and can't check if i_start in this chunk,
1959 it will be check while searching i_sample */
1960 i_chunk = p_track->i_chunk_count - 1;
1964 if( (uint64_t)i_start >= p_track->chunk[i_chunk].i_first_dts &&
1965 (uint64_t)i_start < p_track->chunk[i_chunk + 1].i_first_dts )
1971 /* *** find sample in the chunk *** */
1972 i_sample = p_track->chunk[i_chunk].i_sample_first;
1973 i_dts = p_track->chunk[i_chunk].i_first_dts;
1974 for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
1977 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1978 p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < (uint64_t)i_start )
1981 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1982 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1984 i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
1989 if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
1993 i_sample += ( i_start - i_dts ) /
1994 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1999 if( i_sample >= p_track->i_sample_count )
2001 msg_Warn( p_demux, "track[Id 0x%x] will be disabled "
2002 "(seeking too far) chunk=%d sample=%d",
2003 p_track->i_track_ID, i_chunk, i_sample );
2004 return( VLC_EGENERIC );
2008 /* *** Try to find nearest sync points *** */
2009 if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
2011 unsigned int i_index;
2013 "track[Id 0x%x] using Sync Sample Box (stss)",
2014 p_track->i_track_ID );
2015 for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
2017 if( p_stss->data.p_stss->i_sample_number[i_index] >= i_sample )
2021 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
2023 p_stss->data.p_stss->i_sample_number[i_index-1] );
2024 i_sample = p_stss->data.p_stss->i_sample_number[i_index-1];
2025 /* new i_sample is less than old so i_chunk can only decreased */
2026 while( i_chunk > 0 &&
2027 i_sample < p_track->chunk[i_chunk].i_sample_first )
2034 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
2036 p_stss->data.p_stss->i_sample_number[i_index] );
2037 i_sample = p_stss->data.p_stss->i_sample_number[i_index];
2038 /* new i_sample is more than old so i_chunk can only increased */
2039 while( i_chunk < p_track->i_chunk_count - 1 &&
2040 i_sample >= p_track->chunk[i_chunk].i_sample_first +
2041 p_track->chunk[i_chunk].i_sample_count )
2052 msg_Dbg( p_demux, "track[Id 0x%x] does not provide Sync "
2053 "Sample Box (stss)", p_track->i_track_ID );
2056 *pi_chunk = i_chunk;
2057 *pi_sample = i_sample;
2062 static int TrackGotoChunkSample( demux_t *p_demux, mp4_track_t *p_track,
2063 unsigned int i_chunk, unsigned int i_sample )
2065 bool b_reselect = false;
2067 /* now see if actual es is ok */
2068 if( p_track->i_chunk >= p_track->i_chunk_count ||
2069 p_track->chunk[p_track->i_chunk].i_sample_description_index !=
2070 p_track->chunk[i_chunk].i_sample_description_index )
2072 msg_Warn( p_demux, "recreate ES for track[Id 0x%x]",
2073 p_track->i_track_ID );
2075 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
2076 p_track->p_es, &b_reselect );
2078 es_out_Del( p_demux->out, p_track->p_es );
2080 p_track->p_es = NULL;
2082 if( TrackCreateES( p_demux, p_track, i_chunk, &p_track->p_es ) )
2084 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2085 p_track->i_track_ID );
2087 p_track->b_ok = false;
2088 p_track->b_selected = false;
2089 return VLC_EGENERIC;
2093 /* select again the new decoder */
2096 es_out_Control( p_demux->out, ES_OUT_SET_ES, p_track->p_es );
2099 p_track->i_chunk = i_chunk;
2100 p_track->i_sample = i_sample;
2102 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2105 /****************************************************************************
2107 ****************************************************************************
2108 * Parse track information and create all needed data to run a track
2109 * If it succeed b_ok is set to 1 else to 0
2110 ****************************************************************************/
2111 static void MP4_TrackCreate( demux_t *p_demux, mp4_track_t *p_track,
2112 MP4_Box_t *p_box_trak,
2113 bool b_force_enable )
2115 demux_sys_t *p_sys = p_demux->p_sys;
2117 MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
2118 MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
2133 /* hint track unsupported */
2135 /* set default value (-> track unusable) */
2136 p_track->b_ok = false;
2137 p_track->b_enable = false;
2138 p_track->b_selected = false;
2139 p_track->b_chapter = false;
2140 p_track->b_mac_encoding = false;
2142 es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
2149 /* do we launch this track by default ? */
2151 ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
2152 if( !p_track->b_enable )
2153 p_track->fmt.i_priority = -1;
2155 p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
2156 p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
2157 p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
2161 /* msg_Warn( p_demux, "unhandled box: tref --> FIXME" ); */
2164 p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
2165 p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
2167 if( ( !p_mdhd )||( !p_hdlr ) )
2172 p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
2173 if( !p_track->i_timescale )
2176 if( p_mdhd->data.p_mdhd->i_language_code < 0x800 )
2178 /* We can convert i_language_code into iso 639 code,
2180 strcpy( language, MP4_ConvertMacCode( p_mdhd->data.p_mdhd->i_language_code ) );
2181 p_track->b_mac_encoding = true;
2185 for( i = 0; i < 3; i++ )
2186 language[i] = p_mdhd->data.p_mdhd->i_language[i];
2190 switch( p_hdlr->data.p_hdlr->i_handler_type )
2192 case( FOURCC_soun ):
2193 if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
2197 p_track->fmt.i_cat = AUDIO_ES;
2200 case( FOURCC_vide ):
2201 if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
2205 p_track->fmt.i_cat = VIDEO_ES;
2208 case( FOURCC_text ):
2209 case( FOURCC_subp ):
2210 case( FOURCC_tx3g ):
2211 case( FOURCC_sbtl ):
2212 p_track->fmt.i_cat = SPU_ES;
2219 p_track->i_elst = 0;
2220 p_track->i_elst_time = 0;
2221 if( ( p_track->p_elst = p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
2223 MP4_Box_data_elst_t *elst = p_elst->data.p_elst;
2226 msg_Warn( p_demux, "elst box found" );
2227 for( i = 0; i < elst->i_entry_count; i++ )
2229 msg_Dbg( p_demux, " - [%d] duration=%"PRId64"ms media time=%"PRId64
2230 "ms) rate=%d.%d", i,
2231 elst->i_segment_duration[i] * 1000 / p_sys->i_timescale,
2232 elst->i_media_time[i] >= 0 ?
2233 (int64_t)(elst->i_media_time[i] * 1000 / p_track->i_timescale) :
2235 elst->i_media_rate_integer[i],
2236 elst->i_media_rate_fraction[i] );
2243 p_dinf = MP4_BoxGet( p_minf, "dinf" );
2245 if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) ||
2246 !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
2251 p_drms = MP4_BoxGet( p_track->p_stsd, "drms" );
2252 p_track->b_drms = p_drms != NULL;
2253 p_track->p_drms = p_track->b_drms ?
2254 p_drms->data.p_sample_soun->p_drms : NULL;
2258 p_drms = MP4_BoxGet( p_track->p_stsd, "drmi" );
2259 p_track->b_drms = p_drms != NULL;
2260 p_track->p_drms = p_track->b_drms ?
2261 p_drms->data.p_sample_vide->p_drms : NULL;
2265 p_track->p_skcr = MP4_BoxGet( p_drms, "sinf/skcr" );
2268 if( *language && strcmp( language, "```" ) && strcmp( language, "und" ) )
2270 p_track->fmt.psz_language = strdup( language );
2273 p_udta = MP4_BoxGet( p_box_trak, "udta" );
2276 MP4_Box_t *p_0xa9xxx;
2277 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
2278 p_0xa9xxx = p_0xa9xxx->p_next )
2280 switch( p_0xa9xxx->i_type )
2282 case FOURCC_0xa9nam:
2283 p_track->fmt.psz_description =
2284 strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text );
2290 /* Create chunk index table and sample index table */
2291 if( TrackCreateChunksIndex( p_demux,p_track ) ||
2292 TrackCreateSamplesIndex( p_demux, p_track ) )
2294 return; /* cannot create chunks index */
2297 p_track->i_chunk = 0;
2298 p_track->i_sample = 0;
2300 /* Mark chapter only track */
2301 if( p_sys->p_tref_chap )
2303 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
2306 for( i = 0; i < p_chap->i_entry_count; i++ )
2308 if( p_track->i_track_ID == p_chap->i_track_ID[i] )
2310 p_track->b_chapter = true;
2311 p_track->b_enable = false;
2318 if( b_force_enable &&
2319 ( p_track->fmt.i_cat == VIDEO_ES || p_track->fmt.i_cat == AUDIO_ES ) )
2321 msg_Warn( p_demux, "Enabling track[Id 0x%x] (buggy file without enabled track)",
2322 p_track->i_track_ID );
2323 p_track->b_enable = true;
2324 p_track->fmt.i_priority = 0;
2327 p_track->p_es = NULL;
2328 if( TrackCreateES( p_demux,
2329 p_track, p_track->i_chunk,
2330 p_track->b_chapter ? NULL : &p_track->p_es ) )
2332 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2333 p_track->i_track_ID );
2336 p_track->b_ok = true;
2340 for( i = 0; i < p_track->i_chunk_count; i++ )
2342 fprintf( stderr, "%-5d sample_count=%d pts=%lld\n",
2343 i, p_track->chunk[i].i_sample_count,
2344 p_track->chunk[i].i_first_dts );
2351 /****************************************************************************
2353 ****************************************************************************
2354 * Destroy a track created by MP4_TrackCreate.
2355 ****************************************************************************/
2356 static void MP4_TrackDestroy( mp4_track_t *p_track )
2358 unsigned int i_chunk;
2360 p_track->b_ok = false;
2361 p_track->b_enable = false;
2362 p_track->b_selected = false;
2364 es_format_Clean( &p_track->fmt );
2366 for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
2368 if( p_track->chunk )
2370 FREENULL(p_track->chunk[i_chunk].p_sample_count_dts);
2371 FREENULL(p_track->chunk[i_chunk].p_sample_delta_dts );
2373 FREENULL(p_track->chunk[i_chunk].p_sample_count_pts);
2374 FREENULL(p_track->chunk[i_chunk].p_sample_offset_pts );
2377 FREENULL( p_track->chunk );
2379 if( !p_track->i_sample_size )
2381 FREENULL( p_track->p_sample_size );
2385 static int MP4_TrackSelect( demux_t *p_demux, mp4_track_t *p_track,
2388 if( !p_track->b_ok || p_track->b_chapter )
2390 return VLC_EGENERIC;
2393 if( p_track->b_selected )
2395 msg_Warn( p_demux, "track[Id 0x%x] already selected",
2396 p_track->i_track_ID );
2400 return MP4_TrackSeek( p_demux, p_track, i_start );
2403 static void MP4_TrackUnselect( demux_t *p_demux, mp4_track_t *p_track )
2405 if( !p_track->b_ok || p_track->b_chapter )
2410 if( !p_track->b_selected )
2412 msg_Warn( p_demux, "track[Id 0x%x] already unselected",
2413 p_track->i_track_ID );
2418 es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE,
2419 p_track->p_es, false );
2422 p_track->b_selected = false;
2425 static int MP4_TrackSeek( demux_t *p_demux, mp4_track_t *p_track,
2431 if( !p_track->b_ok || p_track->b_chapter )
2432 return VLC_EGENERIC;
2434 p_track->b_selected = false;
2436 if( TrackTimeToSampleChunk( p_demux, p_track, i_start,
2437 &i_chunk, &i_sample ) )
2439 msg_Warn( p_demux, "cannot select track[Id 0x%x]",
2440 p_track->i_track_ID );
2441 return VLC_EGENERIC;
2444 p_track->b_selected = true;
2446 if( !TrackGotoChunkSample( p_demux, p_track, i_chunk, i_sample ) )
2447 p_track->b_selected = true;
2449 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2454 * 3 types: for audio
2457 #define QT_V0_MAX_SAMPLES 1024
2458 static int MP4_TrackSampleSize( mp4_track_t *p_track )
2461 MP4_Box_data_sample_soun_t *p_soun;
2463 if( p_track->i_sample_size == 0 )
2465 /* most simple case */
2466 return p_track->p_sample_size[p_track->i_sample];
2468 if( p_track->fmt.i_cat != AUDIO_ES )
2470 return p_track->i_sample_size;
2473 p_soun = p_track->p_sample->data.p_sample_soun;
2475 if( p_soun->i_qt_version == 1 )
2477 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count;
2478 if( p_track->fmt.audio.i_blockalign > 1 )
2479 i_samples = p_soun->i_sample_per_packet;
2481 i_size = i_samples / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2483 else if( p_track->i_sample_size > 256 )
2485 /* We do that so we don't read too much data
2486 * (in this case we are likely dealing with compressed data) */
2487 i_size = p_track->i_sample_size;
2491 /* Read a bunch of samples at once */
2492 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
2493 ( p_track->i_sample -
2494 p_track->chunk[p_track->i_chunk].i_sample_first );
2496 i_samples = __MIN( QT_V0_MAX_SAMPLES, i_samples );
2497 i_size = i_samples * p_track->i_sample_size;
2500 //fprintf( stderr, "size=%d\n", i_size );
2504 static uint64_t MP4_TrackGetPos( mp4_track_t *p_track )
2506 unsigned int i_sample;
2509 i_pos = p_track->chunk[p_track->i_chunk].i_offset;
2511 if( p_track->i_sample_size )
2513 MP4_Box_data_sample_soun_t *p_soun =
2514 p_track->p_sample->data.p_sample_soun;
2516 if( p_soun->i_qt_version == 0 )
2518 i_pos += ( p_track->i_sample -
2519 p_track->chunk[p_track->i_chunk].i_sample_first ) *
2520 p_track->i_sample_size;
2524 /* we read chunk by chunk unless a blockalign is requested */
2525 if( p_track->fmt.audio.i_blockalign > 1 )
2526 i_pos += ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first ) /
2527 p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2532 for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
2533 i_sample < p_track->i_sample; i_sample++ )
2535 i_pos += p_track->p_sample_size[i_sample];
2542 static int MP4_TrackNextSample( demux_t *p_demux, mp4_track_t *p_track )
2544 if( p_track->fmt.i_cat == AUDIO_ES && p_track->i_sample_size != 0 )
2546 MP4_Box_data_sample_soun_t *p_soun;
2548 p_soun = p_track->p_sample->data.p_sample_soun;
2550 if( p_soun->i_qt_version == 1 )
2552 /* we read chunk by chunk unless a blockalign is requested */
2553 if( p_track->fmt.audio.i_blockalign > 1 )
2554 p_track->i_sample += p_soun->i_sample_per_packet;
2556 p_track->i_sample += p_track->chunk[p_track->i_chunk].i_sample_count;
2558 else if( p_track->i_sample_size > 256 )
2560 /* We do that so we don't read too much data
2561 * (in this case we are likely dealing with compressed data) */
2562 p_track->i_sample += 1;
2567 p_track->i_sample += QT_V0_MAX_SAMPLES;
2568 if( p_track->i_sample >
2569 p_track->chunk[p_track->i_chunk].i_sample_first +
2570 p_track->chunk[p_track->i_chunk].i_sample_count )
2573 p_track->chunk[p_track->i_chunk].i_sample_first +
2574 p_track->chunk[p_track->i_chunk].i_sample_count;
2580 p_track->i_sample++;
2583 if( p_track->i_sample >= p_track->i_sample_count )
2584 return VLC_EGENERIC;
2586 /* Have we changed chunk ? */
2587 if( p_track->i_sample >=
2588 p_track->chunk[p_track->i_chunk].i_sample_first +
2589 p_track->chunk[p_track->i_chunk].i_sample_count )
2591 if( TrackGotoChunkSample( p_demux, p_track, p_track->i_chunk + 1,
2592 p_track->i_sample ) )
2594 msg_Warn( p_demux, "track[0x%x] will be disabled "
2595 "(cannot restart decoder)", p_track->i_track_ID );
2596 MP4_TrackUnselect( p_demux, p_track );
2597 return VLC_EGENERIC;
2601 /* Have we changed elst */
2602 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
2604 demux_sys_t *p_sys = p_demux->p_sys;
2605 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
2606 uint64_t i_mvt = MP4_TrackGetDTS( p_demux, p_track ) *
2607 p_sys->i_timescale / (int64_t)1000000;
2609 if( (unsigned int)p_track->i_elst < elst->i_entry_count &&
2610 i_mvt >= p_track->i_elst_time +
2611 elst->i_segment_duration[p_track->i_elst] )
2613 MP4_TrackSetELST( p_demux, p_track,
2614 MP4_TrackGetDTS( p_demux, p_track ) );
2621 static void MP4_TrackSetELST( demux_t *p_demux, mp4_track_t *tk,
2624 demux_sys_t *p_sys = p_demux->p_sys;
2625 int i_elst_last = tk->i_elst;
2627 /* handle elst (find the correct one) */
2629 tk->i_elst_time = 0;
2630 if( tk->p_elst && tk->p_elst->data.p_elst->i_entry_count > 0 )
2632 MP4_Box_data_elst_t *elst = tk->p_elst->data.p_elst;
2633 int64_t i_mvt= i_time * p_sys->i_timescale / (int64_t)1000000;
2635 for( tk->i_elst = 0; (unsigned int)tk->i_elst < elst->i_entry_count; tk->i_elst++ )
2637 mtime_t i_dur = elst->i_segment_duration[tk->i_elst];
2639 if( tk->i_elst_time <= i_mvt && i_mvt < tk->i_elst_time + i_dur )
2643 tk->i_elst_time += i_dur;
2646 if( (unsigned int)tk->i_elst >= elst->i_entry_count )
2648 /* msg_Dbg( p_demux, "invalid number of entry in elst" ); */
2649 tk->i_elst = elst->i_entry_count - 1;
2650 tk->i_elst_time -= elst->i_segment_duration[tk->i_elst];
2653 if( elst->i_media_time[tk->i_elst] < 0 )
2656 tk->i_elst_time += elst->i_segment_duration[tk->i_elst];
2659 if( i_elst_last != tk->i_elst )
2661 msg_Warn( p_demux, "elst old=%d new=%d", i_elst_last, tk->i_elst );
2666 static const char *MP4_ConvertMacCode( uint16_t i_code )
2668 static const struct { const char *psz_iso639_1; uint16_t i_code; } p_cvt[] = {
2669 { "en", 0 }, { "fr", 1 }, { "de", 2 }, { "it", 3 }, { "nl", 4 },
2670 { "sv", 5 }, { "es", 6 }, { "da", 7 }, { "pt", 8 }, { "no", 9 },
2671 { "he", 10 }, { "ja", 11 }, { "ar", 12 }, { "fi", 13 }, { "el", 14 },
2672 { "is", 15 }, { "mt", 16 }, { "tr", 17 }, { "hr", 18 }, { "zh", 19 },
2673 { "ur", 20 }, { "hi", 21 }, { "th", 22 }, { "ko", 23 }, { "lt", 24 },
2674 { "pl", 25 }, { "hu", 26 }, { "et", 27 }, { "lv", 28 }, //{ "??", 29 },
2675 { "fo", 30 }, { "fa", 31 }, { "ru", 32 }, { "zh", 33 }, { "nl", 34 },
2676 { "ga", 35 }, { "sq", 36 }, { "ro", 37 }, { "cs", 38 }, { "sk", 39 },
2677 { "sl", 40 }, { "yi", 41 }, { "sr", 42 }, { "mk", 43 }, { "bg", 44 },
2678 { "uk", 45 }, { "be", 46 }, { "uz", 47 }, { "az", 48 }, { "kk", 48 },
2679 { "az", 50 }, { "hy", 51 }, { "ka", 52 }, { "mo", 53 }, { "ky", 54 },
2680 { "tg", 55 }, { "tk", 56 }, { "mn", 57 }, { "mn", 58 }, { "ps", 59 },
2681 { "ku", 60 }, { "ks", 61 }, { "sd", 62 }, { "bo", 63 }, { "ne", 64 },
2682 { "sa", 65 }, { "mr", 66 }, { "bn", 67 }, { "as", 68 }, { "gu", 69 },
2683 { "pa", 70 }, { "or", 71 }, { "ml", 72 }, { "kn", 73 }, { "ta", 74 },
2684 { "te", 75 }, { "si", 76 }, { "my", 77 }, { "km", 78 }, { "lo", 79 },
2685 { "vi", 80 }, { "id", 81 }, { "tl", 82 }, { "ms", 83 }, { "ms", 84 },
2686 { "am", 85 }, { "ti", 86 }, { "om", 87 }, { "so", 88 }, { "sw", 89 },
2687 { "rw", 90 }, { "rn", 91 }, { "ny", 92 }, { "mg", 93 }, { "eo", 94 },
2689 { "cy", 128 }, { "eu", 129 },
2690 { "ca", 130 }, { "la", 131 }, { "qu", 132 }, { "gn", 133 }, { "ay", 134 },
2691 { "tt", 135 }, { "ug", 136 }, { "dz", 137 }, { "jv", 138 }, { "su", 139 },
2692 { "gl", 140 }, { "af", 141 }, { "br", 142 }, { "iu", 143 }, { "gd", 144 },
2693 { "gv", 145 }, { "ga", 146 }, { "to", 147 }, { "el", 148 },
2698 for( i = 0; p_cvt[i].psz_iso639_1 != NULL; i++ )
2700 if( p_cvt[i].i_code == i_code )
2701 return p_cvt[i].psz_iso639_1;