1 /*****************************************************************************
2 * mkv.cpp : matroska demuxer
3 *****************************************************************************
4 * Copyright (C) 2003-2005, 2008, 2010 VLC authors and VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Steve Lhomme <steve.lhomme@free.fr>
10 * This program is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU Lesser General Public License as published by
12 * the Free Software Foundation; either version 2.1 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public License
21 * along with this program; if not, write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
28 #include "matroska_segment.hpp"
31 #include "chapters.hpp"
32 #include "Ebml_parser.hpp"
39 /*****************************************************************************
41 *****************************************************************************/
43 static int Open ( vlc_object_t
* );
44 static void Close( vlc_object_t
* );
49 set_shortname( "Matroska" )
50 set_description( N_("Matroska stream demuxer" ) )
51 set_capability( "demux", 50 )
52 set_callbacks( Open
, Close
)
53 set_category( CAT_INPUT
)
54 set_subcategory( SUBCAT_INPUT_DEMUX
)
56 add_bool( "mkv-use-ordered-chapters", true,
57 N_("Respect ordered chapters"),
58 N_("Play chapters in the order specified in the segment."), false );
60 add_bool( "mkv-use-chapter-codec", true,
62 N_("Use chapter codecs found in the segment."), true );
64 add_bool( "mkv-preload-local-dir", true,
65 N_("Preload MKV files in the same directory"),
66 N_("Preload matroska files in the same directory to find linked segments (not good for broken files)."), false );
68 add_bool( "mkv-seek-percent", false,
69 N_("Seek based on percent not time"),
70 N_("Seek based on percent not time."), true );
72 add_bool( "mkv-use-dummy", false,
74 N_("Read and discard unknown EBML elements (not good for broken files)."), true );
76 add_bool( "mkv-preload-clusters", false,
77 N_("Preload clusters"),
78 N_("Find all cluster positions by jumping cluster-to-cluster before playback"), true );
80 add_shortcut( "mka", "mkv" )
87 static int Demux ( demux_t
* );
88 static int Control( demux_t
*, int, va_list );
89 static int Seek ( demux_t
*, vlc_tick_t i_mk_date
, double f_percent
, virtual_chapter_c
*p_vchapter
, bool b_precise
= true );
91 /*****************************************************************************
92 * Open: initializes matroska demux structures
93 *****************************************************************************/
94 static int Open( vlc_object_t
* p_this
)
96 demux_t
*p_demux
= (demux_t
*)p_this
;
98 matroska_stream_c
*p_stream
;
99 matroska_segment_c
*p_segment
;
100 const uint8_t *p_peek
;
101 std::string s_path
, s_filename
;
102 bool b_need_preload
= false;
104 /* peek the begining */
105 if( vlc_stream_Peek( p_demux
->s
, &p_peek
, 4 ) < 4 ) return VLC_EGENERIC
;
107 /* is a valid file */
108 if( p_peek
[0] != 0x1a || p_peek
[1] != 0x45 ||
109 p_peek
[2] != 0xdf || p_peek
[3] != 0xa3 ) return VLC_EGENERIC
;
111 /* Set the demux function */
112 p_demux
->pf_demux
= Demux
;
113 p_demux
->pf_control
= Control
;
114 p_demux
->p_sys
= p_sys
= new demux_sys_t( *p_demux
);
116 vlc_stream_Control( p_demux
->s
, STREAM_CAN_SEEK
, &p_sys
->b_seekable
);
117 if ( vlc_stream_Control( p_demux
->s
, STREAM_CAN_FASTSEEK
, &p_sys
->b_fastseekable
) )
118 p_sys
->b_fastseekable
= false;
120 es_out_Control( p_demux
->out
, ES_OUT_SET_ES_CAT_POLICY
, VIDEO_ES
,
121 ES_OUT_ES_POLICY_EXCLUSIVE
);
123 p_stream
= new matroska_stream_c( p_demux
->s
, false );
124 if ( unlikely(p_stream
== NULL
) )
126 msg_Err( p_demux
, "failed to create matroska_stream_c" );
130 p_sys
->streams
.push_back( p_stream
);
132 if( !p_sys
->AnalyseAllSegmentsFound( p_demux
, p_stream
) )
134 msg_Err( p_demux
, "cannot find KaxSegment or missing mandatory KaxInfo" );
138 for (size_t i
=0; i
<p_stream
->segments
.size(); i
++)
140 p_stream
->segments
[i
]->Preload();
141 b_need_preload
|= p_stream
->segments
[i
]->b_ref_external_segments
;
142 if ( p_stream
->segments
[i
]->translations
.size() &&
143 p_stream
->segments
[i
]->translations
[0]->codec_id
== MATROSKA_CHAPTER_CODEC_DVD
&&
144 p_stream
->segments
[i
]->families
.size() )
145 b_need_preload
= true;
148 p_segment
= p_stream
->segments
[0];
149 if( p_segment
->cluster
== NULL
&& p_segment
->stored_editions
.size() == 0 )
151 msg_Err( p_demux
, "cannot find any cluster or chapter, damaged file ?" );
155 if (b_need_preload
&& var_InheritBool( p_demux
, "mkv-preload-local-dir" ))
157 msg_Dbg( p_demux
, "Preloading local dir" );
158 /* get the files from the same dir from the same family (based on p_demux->psz_path) */
159 if ( p_demux
->psz_filepath
&& !strncasecmp( p_demux
->psz_url
, "file:", 5 ) )
161 // assume it's a regular file
162 // get the directory path
163 s_path
= p_demux
->psz_filepath
;
164 if (s_path
.at(s_path
.length() - 1) == DIR_SEP_CHAR
)
166 s_path
= s_path
.substr(0,s_path
.length()-1);
170 if (s_path
.find_last_of(DIR_SEP_CHAR
) > 0)
172 s_path
= s_path
.substr(0,s_path
.find_last_of(DIR_SEP_CHAR
));
176 DIR *p_src_dir
= vlc_opendir(s_path
.c_str());
178 if (p_src_dir
!= NULL
)
180 const char *psz_file
;
181 while ((psz_file
= vlc_readdir(p_src_dir
)) != NULL
)
183 if (strlen(psz_file
) > 4)
185 s_filename
= s_path
+ DIR_SEP_CHAR
+ psz_file
;
187 #if defined(_WIN32) || defined(__OS2__)
188 if (!strcasecmp(s_filename
.c_str(), p_demux
->psz_filepath
))
190 if (!s_filename
.compare(p_demux
->psz_filepath
))
193 continue; // don't reuse the original opened file
196 if (!strcasecmp(s_filename
.c_str() + s_filename
.length() - 4, ".mkv") ||
197 !strcasecmp(s_filename
.c_str() + s_filename
.length() - 4, ".mka"))
199 // test whether this file belongs to our family
200 const uint8_t *p_peek
;
201 bool file_ok
= false;
202 char *psz_url
= vlc_path2uri( s_filename
.c_str(), "file" );
203 stream_t
*p_file_stream
= vlc_stream_NewURL(
206 /* peek the begining */
208 vlc_stream_Peek( p_file_stream
, &p_peek
, 4 ) >= 4
209 && p_peek
[0] == 0x1a && p_peek
[1] == 0x45 &&
210 p_peek
[2] == 0xdf && p_peek
[3] == 0xa3 ) file_ok
= true;
214 matroska_stream_c
*p_stream
= new matroska_stream_c( p_file_stream
, true );
216 if ( !p_sys
->AnalyseAllSegmentsFound( p_demux
, p_stream
) )
218 msg_Dbg( p_demux
, "the file '%s' will not be used", s_filename
.c_str() );
223 p_sys
->streams
.push_back( p_stream
);
228 if( p_file_stream
) {
229 vlc_stream_Delete( p_file_stream
);
231 msg_Dbg( p_demux
, "the file '%s' cannot be opened", s_filename
.c_str() );
237 closedir( p_src_dir
);
241 p_sys
->PreloadFamily( *p_segment
);
243 else if (b_need_preload
)
244 msg_Warn( p_demux
, "This file references other files, you may want to enable the preload of local directory");
246 if ( !p_sys
->PreloadLinked() ||
247 !p_sys
->PreparePlayback( *p_sys
->p_current_vsegment
, 0 ) )
249 msg_Err( p_demux
, "cannot use the segment" );
264 /*****************************************************************************
265 * Close: frees unused data
266 *****************************************************************************/
267 static void Close( vlc_object_t
*p_this
)
269 demux_t
*p_demux
= reinterpret_cast<demux_t
*>( p_this
);
270 demux_sys_t
*p_sys
= (demux_sys_t
*)p_demux
->p_sys
;
271 virtual_segment_c
*p_vsegment
= p_sys
->p_current_vsegment
;
274 matroska_segment_c
*p_segment
= p_vsegment
->CurrentSegment();
276 p_segment
->ESDestroy();
282 /*****************************************************************************
284 *****************************************************************************/
285 static int Control( demux_t
*p_demux
, int i_query
, va_list args
)
287 demux_sys_t
*p_sys
= (demux_sys_t
*)p_demux
->p_sys
;
295 input_attachment_t
***ppp_attach
;
301 return vlc_stream_vaControl( p_demux
->s
, i_query
, args
);
303 case DEMUX_GET_ATTACHMENTS
:
304 ppp_attach
= va_arg( args
, input_attachment_t
*** );
305 pi_int
= va_arg( args
, int * );
307 if( p_sys
->stored_attachments
.size() <= 0 )
310 *pi_int
= p_sys
->stored_attachments
.size();
311 *ppp_attach
= static_cast<input_attachment_t
**>( vlc_alloc( p_sys
->stored_attachments
.size(),
312 sizeof(input_attachment_t
*) ) );
315 for( size_t i
= 0; i
< p_sys
->stored_attachments
.size(); i
++ )
317 attachment_c
*a
= p_sys
->stored_attachments
[i
];
318 (*ppp_attach
)[i
] = vlc_input_attachment_New( a
->fileName(), a
->mimeType(), NULL
,
319 a
->p_data
, a
->size() );
320 if( !(*ppp_attach
)[i
] )
329 p_meta
= va_arg( args
, vlc_meta_t
* );
330 vlc_meta_Merge( p_meta
, p_sys
->meta
);
333 case DEMUX_GET_LENGTH
:
334 pi64
= va_arg( args
, int64_t * );
335 if( p_sys
->f_duration
> 0.0 )
336 *pi64
= static_cast<int64_t>( p_sys
->f_duration
* 1000 );
338 *pi64
= VLC_TICK_INVALID
;
341 case DEMUX_GET_POSITION
:
342 pf
= va_arg( args
, double * );
343 if ( p_sys
->f_duration
> 0.0 )
344 *pf
= static_cast<double> (p_sys
->i_pcr
>= (p_sys
->i_start_pts
+ p_sys
->i_mk_chapter_time
) ?
346 (p_sys
->i_start_pts
+ p_sys
->i_mk_chapter_time
) ) / (1000.0 * p_sys
->f_duration
);
349 case DEMUX_SET_POSITION
:
350 if( p_sys
->f_duration
> 0.0 )
352 f
= va_arg( args
, double );
353 b
= va_arg( args
, int ); /* precise? */
354 return Seek( p_demux
, -1, f
, NULL
, b
);
359 pi64
= va_arg( args
, int64_t * );
360 *pi64
= p_sys
->i_pcr
;
363 case DEMUX_GET_TITLE_INFO
:
364 if( p_sys
->titles
.size() > 1 || ( p_sys
->titles
.size() == 1 && p_sys
->titles
[0]->i_seekpoint
> 0 ) )
366 input_title_t
***ppp_title
= va_arg( args
, input_title_t
*** );
367 int *pi_int
= va_arg( args
, int* );
369 *pi_int
= p_sys
->titles
.size();
370 *ppp_title
= static_cast<input_title_t
**>( vlc_alloc( p_sys
->titles
.size(), sizeof( input_title_t
* ) ) );
372 for( size_t i
= 0; i
< p_sys
->titles
.size(); i
++ )
373 (*ppp_title
)[i
] = vlc_input_title_Duplicate( p_sys
->titles
[i
] );
378 case DEMUX_SET_TITLE
:
379 /* handle editions as titles */
380 i_idx
= va_arg( args
, int );
381 if(i_idx
< p_sys
->titles
.size() && p_sys
->titles
[i_idx
]->i_seekpoint
)
383 const int i_edition
= p_sys
->p_current_vsegment
->i_current_edition
;
384 const int i_title
= p_sys
->i_current_title
;
385 p_sys
->p_current_vsegment
->i_current_edition
= i_idx
;
386 p_sys
->i_current_title
= i_idx
;
388 Seek( p_demux
, static_cast<int64_t>( p_sys
->titles
[i_idx
]->seekpoint
[0]->i_time_offset
), -1, NULL
) )
390 p_sys
->i_updates
|= INPUT_UPDATE_SEEKPOINT
|INPUT_UPDATE_TITLE
;
391 p_sys
->i_current_seekpoint
= 0;
392 p_sys
->f_duration
= (float) p_sys
->titles
[i_idx
]->i_length
/ 1000.f
;
397 p_sys
->p_current_vsegment
->i_current_edition
= i_edition
;
398 p_sys
->i_current_title
= i_title
;
403 case DEMUX_SET_SEEKPOINT
:
404 i_skp
= va_arg( args
, int );
406 // TODO change the way it works with the << & >> buttons on the UI (+1/-1 instead of a number)
407 if( p_sys
->titles
.size() && i_skp
< p_sys
->titles
[p_sys
->i_current_title
]->i_seekpoint
)
409 int i_ret
= Seek( p_demux
, static_cast<int64_t>( p_sys
->titles
[p_sys
->i_current_title
]->seekpoint
[i_skp
]->i_time_offset
), -1, NULL
);
410 if( i_ret
== VLC_SUCCESS
)
412 p_sys
->i_updates
|= INPUT_UPDATE_SEEKPOINT
;
413 p_sys
->i_current_seekpoint
= i_skp
;
419 case DEMUX_TEST_AND_CLEAR_FLAGS
:
421 unsigned *restrict flags
= va_arg( args
, unsigned * );
422 *flags
&= p_sys
->i_updates
;
423 p_sys
->i_updates
&= ~*flags
;
427 case DEMUX_GET_TITLE
:
428 *va_arg( args
, int * ) = p_sys
->i_current_title
;
431 case DEMUX_GET_SEEKPOINT
:
432 *va_arg( args
, int * ) = p_sys
->i_current_seekpoint
;
436 pf
= va_arg( args
, double * );
438 if( p_sys
->p_current_vsegment
&& p_sys
->p_current_vsegment
->CurrentSegment() )
440 typedef matroska_segment_c::tracks_map_t tracks_map_t
;
442 const matroska_segment_c
*p_segment
= p_sys
->p_current_vsegment
->CurrentSegment();
443 for( tracks_map_t::const_iterator it
= p_segment
->tracks
.begin(); it
!= p_segment
->tracks
.end(); ++it
)
445 const mkv_track_t
&track
= *it
->second
;
447 if( track
.fmt
.i_cat
== VIDEO_ES
&& track
.fmt
.video
.i_frame_rate_base
> 0 )
449 *pf
= (double)track
.fmt
.video
.i_frame_rate
/ track
.fmt
.video
.i_frame_rate_base
;
457 i64
= va_arg( args
, int64_t );
458 b
= va_arg( args
, int ); /* precise? */
459 msg_Dbg(p_demux
,"SET_TIME to %" PRId64
, i64
);
460 return Seek( p_demux
, i64
, -1, NULL
, b
);
462 case DEMUX_CAN_PAUSE
:
463 case DEMUX_SET_PAUSE_STATE
:
464 case DEMUX_CAN_CONTROL_PACE
:
465 case DEMUX_GET_PTS_DELAY
:
466 return demux_vaControlHelper( p_demux
->s
, 0, -1, 0, 1, i_query
, args
);
474 static int Seek( demux_t
*p_demux
, vlc_tick_t i_mk_date
, double f_percent
, virtual_chapter_c
*p_vchapter
, bool b_precise
)
476 demux_sys_t
*p_sys
= (demux_sys_t
*)p_demux
->p_sys
;
477 virtual_segment_c
*p_vsegment
= p_sys
->p_current_vsegment
;
478 matroska_segment_c
*p_segment
= p_vsegment
->CurrentSegment();
480 if( f_percent
< 0 ) msg_Dbg( p_demux
, "seek request to i_pos = %" PRId64
, i_mk_date
);
481 else msg_Dbg( p_demux
, "seek request to %.2f%%", f_percent
* 100 );
483 if( i_mk_date
< 0 && f_percent
< 0 )
485 msg_Warn( p_demux
, "cannot seek nowhere!" );
488 if( f_percent
> 1.0 )
490 msg_Warn( p_demux
, "cannot seek so far!" );
493 if( p_sys
->f_duration
< 0 )
495 msg_Warn( p_demux
, "cannot seek without duration!");
500 msg_Warn( p_demux
, "cannot seek without valid segment position");
504 /* seek without index or without date */
505 if( f_percent
>= 0 && (var_InheritBool( p_demux
, "mkv-seek-percent" ) || i_mk_date
< 0 ))
507 i_mk_date
= int64_t( f_percent
* p_sys
->f_duration
* 1000.0 );
509 return p_vsegment
->Seek( *p_demux
, i_mk_date
, p_vchapter
, b_precise
) ? VLC_SUCCESS
: VLC_EGENERIC
;
512 /* Needed by matroska_segment::Seek() and Seek */
513 void BlockDecode( demux_t
*p_demux
, KaxBlock
*block
, KaxSimpleBlock
*simpleblock
,
514 vlc_tick_t i_pts
, vlc_tick_t i_duration
, bool b_key_picture
,
515 bool b_discardable_picture
)
517 demux_sys_t
*p_sys
= (demux_sys_t
*)p_demux
->p_sys
;
518 matroska_segment_c
*p_segment
= p_sys
->p_current_vsegment
->CurrentSegment();
520 if( !p_segment
) return;
522 mkv_track_t
*p_track
= p_segment
->FindTrackByBlock( block
, simpleblock
);
523 if( p_track
== NULL
)
525 msg_Err( p_demux
, "invalid track number" );
529 mkv_track_t
&track
= *p_track
;
531 if( track
.fmt
.i_cat
!= DATA_ES
&& track
.p_es
== NULL
)
533 msg_Err( p_demux
, "unknown track number" );
537 i_pts
-= track
.i_codec_delay
;
539 if ( track
.fmt
.i_cat
!= DATA_ES
)
542 es_out_Control( p_demux
->out
, ES_OUT_GET_ES_STATE
, track
.p_es
, &b
);
546 if( track
.fmt
.i_cat
== VIDEO_ES
|| track
.fmt
.i_cat
== AUDIO_ES
)
547 track
.i_last_dts
= VLC_TICK_INVALID
;
552 size_t frame_size
= 0;
553 size_t block_size
= 0;
555 if( simpleblock
!= NULL
)
556 block_size
= simpleblock
->GetSize();
558 block_size
= block
->GetSize();
560 const unsigned int i_number_frames
= block
!= NULL
? block
->NumberFrames() :
561 ( simpleblock
!= NULL
? simpleblock
->NumberFrames() : 0 );
563 for( unsigned int i_frame
= 0; i_frame
< i_number_frames
; i_frame
++ )
567 if( simpleblock
!= NULL
)
569 data
= &simpleblock
->GetBuffer(i_frame
);
573 data
= &block
->GetBuffer(i_frame
);
575 frame_size
+= data
->Size();
576 if( !data
->Buffer() || data
->Size() > frame_size
|| frame_size
> block_size
)
578 msg_Warn( p_demux
, "Cannot read frame (too long or no frame)" );
581 size_t extra_data
= track
.fmt
.i_codec
== VLC_CODEC_PRORES
? 8 : 0;
583 if( track
.i_compression_type
== MATROSKA_COMPRESSION_HEADER
&&
584 track
.p_compression_data
!= NULL
&&
585 track
.i_encoding_scope
& MATROSKA_ENCODING_SCOPE_ALL_FRAMES
)
586 p_block
= MemToBlock( data
->Buffer(), data
->Size(), track
.p_compression_data
->GetSize() + extra_data
);
587 else if( unlikely( track
.fmt
.i_codec
== VLC_CODEC_WAVPACK
) )
588 p_block
= packetize_wavpack( track
, data
->Buffer(), data
->Size() );
590 p_block
= MemToBlock( data
->Buffer(), data
->Size(), extra_data
);
592 if( p_block
== NULL
)
597 #if defined(HAVE_ZLIB_H)
598 if( track
.i_compression_type
== MATROSKA_COMPRESSION_ZLIB
&&
599 track
.i_encoding_scope
& MATROSKA_ENCODING_SCOPE_ALL_FRAMES
)
601 p_block
= block_zlib_decompress( VLC_OBJECT(p_demux
), p_block
);
602 if( p_block
== NULL
)
607 if( track
.i_compression_type
== MATROSKA_COMPRESSION_HEADER
&&
608 track
.i_encoding_scope
& MATROSKA_ENCODING_SCOPE_ALL_FRAMES
)
610 memcpy( p_block
->p_buffer
, track
.p_compression_data
->GetBuffer(), track
.p_compression_data
->GetSize() );
612 if ( track
.fmt
.i_codec
== VLC_CODEC_PRORES
)
613 memcpy( p_block
->p_buffer
+ 4, "icpf", 4 );
616 p_block
->i_flags
|= BLOCK_FLAG_TYPE_I
;
618 switch( track
.fmt
.i_codec
)
621 case VLC_CODEC_ATRAC3
:
623 handle_real_audio(p_demux
, &track
, p_block
, i_pts
);
624 block_Release(p_block
);
625 i_pts
= ( track
.i_default_duration
)?
626 i_pts
+ ( vlc_tick_t
)track
.i_default_duration
:
631 case VLC_CODEC_WEBVTT
:
633 p_block
= block_Realloc( p_block
, 16, p_block
->i_buffer
);
636 SetDWBE( p_block
->p_buffer
, p_block
->i_buffer
);
637 memcpy( &p_block
->p_buffer
[4], "vttc", 4 );
638 SetDWBE( &p_block
->p_buffer
[8], p_block
->i_buffer
- 8 );
639 memcpy( &p_block
->p_buffer
[12], "payl", 4 );
644 vlc_tick_t i_length
= i_duration
* track
. f_timecodescale
*
645 (double) p_segment
->i_timescale
/ 1000.0;
646 if ( i_length
< 0 ) i_length
= 0;
647 p_block
->i_nb_samples
= i_length
* track
.fmt
.audio
.i_rate
652 if( track
.fmt
.i_cat
!= VIDEO_ES
)
654 if ( track
.fmt
.i_cat
== DATA_ES
)
656 // TODO handle the start/stop times of this packet
657 p_sys
->p_ev
->SetPci( (const pci_t
*)&p_block
->p_buffer
[1]);
658 block_Release( p_block
);
661 p_block
->i_dts
= p_block
->i_pts
= i_pts
;
665 // correct timestamping when B frames are used
666 if( track
.b_dts_only
)
668 p_block
->i_pts
= VLC_TICK_INVALID
;
669 p_block
->i_dts
= i_pts
;
671 else if( track
.b_pts_only
)
673 p_block
->i_pts
= i_pts
;
674 p_block
->i_dts
= i_pts
;
678 p_block
->i_pts
= i_pts
;
679 // condition when the DTS is correct (keyframe or B frame == NOT P frame)
680 if ( b_key_picture
|| b_discardable_picture
)
681 p_block
->i_dts
= p_block
->i_pts
;
682 else if ( track
.i_last_dts
== VLC_TICK_INVALID
)
683 p_block
->i_dts
= i_pts
;
685 p_block
->i_dts
= std::min( i_pts
, track
.i_last_dts
+ ( vlc_tick_t
)track
.i_default_duration
);
689 send_Block( p_demux
, &track
, p_block
, i_number_frames
, i_duration
);
691 /* use time stamp only for first block */
692 i_pts
= ( track
.i_default_duration
)?
693 i_pts
+ ( vlc_tick_t
)track
.i_default_duration
:
694 ( track
.fmt
.b_packetized
) ? VLC_TICK_INVALID
: i_pts
+ 1;
698 /*****************************************************************************
699 * Demux: reads and demuxes data packets
700 *****************************************************************************
701 * Returns -1 in case of error, 0 in case of EOF, 1 otherwise
702 *****************************************************************************/
703 static int Demux( demux_t
*p_demux
)
705 demux_sys_t
*p_sys
= (demux_sys_t
*)p_demux
->p_sys
;
707 vlc_mutex_locker
demux_lock ( &p_sys
->lock_demuxer
);
709 virtual_segment_c
*p_vsegment
= p_sys
->p_current_vsegment
;
711 if( p_sys
->i_pts
>= p_sys
->i_start_pts
)
713 if ( p_vsegment
->UpdateCurrentToChapter( *p_demux
) )
715 p_vsegment
= p_sys
->p_current_vsegment
;
718 matroska_segment_c
*p_segment
= p_vsegment
->CurrentSegment();
719 if ( p_segment
== NULL
)
723 KaxSimpleBlock
*simpleblock
;
724 int64_t i_block_duration
= 0;
726 bool b_discardable_picture
;
728 if( p_segment
->BlockGet( block
, simpleblock
, &b_key_picture
, &b_discardable_picture
, &i_block_duration
) )
730 if ( p_vsegment
->CurrentEdition() && p_vsegment
->CurrentEdition()->b_ordered
)
732 const virtual_chapter_c
*p_chap
= p_vsegment
->CurrentChapter();
733 // check if there are more chapters to read
734 if ( p_chap
!= NULL
)
736 /* TODO handle successive chapters with the same user_start_time/user_end_time
738 p_sys
->i_pts
= p_chap
->i_mk_virtual_stop_time
+ VLC_TICK_0
;
739 p_sys
->i_pts
++; // trick to avoid staying on segments with no duration and no content
745 msg_Warn( p_demux
, "cannot get block EOF?" );
750 mkv_track_t
*p_track
= p_segment
->FindTrackByBlock( block
, simpleblock
);
752 if( p_track
== NULL
)
754 msg_Err( p_demux
, "invalid track number" );
759 mkv_track_t
&track
= *p_track
;
762 if( track
.i_skip_until_fpos
!= std::numeric_limits
<uint64_t>::max() ) {
764 uint64_t block_fpos
= 0;
766 if( block
) block_fpos
= block
->GetElementPosition();
767 else block_fpos
= simpleblock
->GetElementPosition();
769 if ( track
.i_skip_until_fpos
> block_fpos
)
772 return 1; // this block shall be ignored
779 vlc_tick_t i_pcr
= VLC_TICK_INVALID
;
781 typedef matroska_segment_c::tracks_map_t tracks_map_t
;
783 for( tracks_map_t::const_iterator it
= p_segment
->tracks
.begin(); it
!= p_segment
->tracks
.end(); ++it
)
785 mkv_track_t
&track
= *it
->second
;
787 if( track
.i_last_dts
== VLC_TICK_INVALID
)
790 if( track
.fmt
.i_cat
!= VIDEO_ES
&& track
.fmt
.i_cat
!= AUDIO_ES
)
793 if( track
.i_last_dts
< i_pcr
|| i_pcr
== VLC_TICK_INVALID
)
795 i_pcr
= track
.i_last_dts
;
799 if( i_pcr
!= VLC_TICK_INVALID
&& i_pcr
> p_sys
->i_pcr
)
801 if( es_out_SetPCR( p_demux
->out
, i_pcr
) )
803 msg_Err( p_demux
, "ES_OUT_SET_PCR failed, aborting." );
807 p_sys
->i_pcr
= i_pcr
;
813 p_sys
->i_pts
= p_sys
->i_mk_chapter_time
+ VLC_TICK_0
;
815 if( simpleblock
!= NULL
) p_sys
->i_pts
+= simpleblock
->GlobalTimecode() / INT64_C( 1000 );
816 else p_sys
->i_pts
+= block
->GlobalTimecode() / INT64_C( 1000 );
819 if ( p_vsegment
->CurrentEdition() &&
820 p_vsegment
->CurrentEdition()->b_ordered
&&
821 p_vsegment
->CurrentChapter() == NULL
)
823 /* nothing left to read in this ordered edition */
828 BlockDecode( p_demux
, block
, simpleblock
, p_sys
->i_pts
, i_block_duration
, b_key_picture
, b_discardable_picture
);
835 mkv_track_t::mkv_track_t(enum es_format_category_e es_cat
) :
844 ,b_no_duration(false)
845 ,i_default_duration(0)
846 ,f_timecodescale(1.0)
847 ,i_last_dts(VLC_TICK_INVALID
)
848 ,i_skip_until_fpos(std::numeric_limits
<uint64_t>::max())
852 ,i_chans_to_reorder(0)
854 ,b_discontinuity(false)
855 ,i_compression_type(MATROSKA_COMPRESSION_NONE
)
856 ,i_encoding_scope(MATROSKA_ENCODING_SCOPE_ALL_FRAMES
)
857 ,p_compression_data(NULL
)
861 std::memset( &pi_chan_table
, 0, sizeof( pi_chan_table
) );
863 es_format_Init(&fmt
, es_cat
, 0);
868 fmt
.audio
.i_channels
= 1;
869 fmt
.audio
.i_rate
= 8000;
873 fmt
.psz_language
= strdup("English");
876 // no language needed
881 mkv_track_t::~mkv_track_t()
883 es_format_Clean( &fmt
);
884 assert(p_es
== NULL
); // did we leak an ES ?
888 delete p_compression_data
;
892 matroska_stream_c::matroska_stream_c( stream_t
*s
, bool owner
)
893 :io_callback( s
, owner
)
894 ,estream( io_callback
)
897 bool matroska_stream_c::isUsed() const
899 for( size_t j
= 0; j
< segments
.size(); j
++ )
901 if( segments
[j
]->b_preloaded
)