?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
Change the gmp download URL to https://gmplib.org/download
[vlc/gmpfix.git] / modules / mux / ogg.c
blob02b844f3bb6ba46a66364b8b46b01d93d4ebe700
1 /*****************************************************************************
2 * ogg.c: ogg muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001, 2002, 2006 VLC authors and VideoLAN
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
9 *
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.
14 *
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.
19 *
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 *****************************************************************************/
24
25 /*****************************************************************************
26 * Preamble
27 *****************************************************************************/
28
29 #ifdef HAVE_CONFIG_H
30 # include "config.h"
31 #endif
32
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
35 #include <vlc_sout.h>
36 #include <vlc_block.h>
37 #include <vlc_codecs.h>
38 #include <limits.h>
39 #include <vlc_rand.h>
40 #include "../demux/xiph.h"
41
42 #include <ogg/ogg.h>
43
44 /*****************************************************************************
45 * Module descriptor
46 *****************************************************************************/
47 #define INDEXINTVL_TEXT N_("Index interval")
48 #define INDEXINTVL_LONGTEXT N_("Minimal index interval, in microseconds. " \
49 "Set to 0 to disable index creation.")
50 #define INDEXRATIO_TEXT N_("Index size ratio")
51 #define INDEXRATIO_LONGTEXT N_(\
52 "Set index size ratio. Alters default (60min content) or estimated size." )
53
54 static int Open ( vlc_object_t * );
55 static void Close ( vlc_object_t * );
56
57 #define SOUT_CFG_PREFIX "sout-ogg-"
58
59 vlc_module_begin ()
60 set_description( N_("Ogg/OGM muxer") )
61 set_capability( "sout mux", 10 )
62 set_category( CAT_SOUT )
63 set_subcategory( SUBCAT_SOUT_MUX )
64 add_shortcut( "ogg", "ogm" )
65 add_integer_with_range( SOUT_CFG_PREFIX "indexintvl", 1000, 0, INT_MAX,
66 INDEXINTVL_TEXT, INDEXINTVL_LONGTEXT, true )
67 add_float_with_range( SOUT_CFG_PREFIX "indexratio", 1.0, 1.0, 1000,
68 INDEXRATIO_TEXT, INDEXRATIO_LONGTEXT, true )
69 set_callbacks( Open, Close )
70 vlc_module_end ()
71
72
73 /*****************************************************************************
74 * Exported prototypes
75 *****************************************************************************/
76 static int Control ( sout_mux_t *, int, va_list );
77 static int AddStream( sout_mux_t *, sout_input_t * );
78 static int DelStream( sout_mux_t *, sout_input_t * );
79 static int Mux ( sout_mux_t * );
80 static int MuxBlock ( sout_mux_t *, sout_input_t * );
81
82 static bool OggCreateHeaders( sout_mux_t * );
83 static void OggFillSkeletonFishead( uint8_t *p_buffer, sout_mux_t *p_mux );
84
85 /*****************************************************************************
86 * Misc declarations
87 *****************************************************************************/
88
89 /* Skeleton */
90 #define FISBONE_BASE_SIZE 52
91 #define FISBONE_BASE_OFFSET 44
92 #define INDEX_BASE_SIZE 42
93
94 /* Structures used for OggDS headers used in ogm files */
95
96 #define PACKET_TYPE_HEADER 0x01
97 #define PACKET_TYPE_COMMENT 0x03
98 #define PACKET_IS_SYNCPOINT 0x08
99
100 typedef struct
101 {
102 int32_t i_width;
103 int32_t i_height;
104 } oggds_header_video_t;
105
106 typedef struct
107 {
108 int16_t i_channels;
109 int16_t i_block_align;
110 int32_t i_avgbytespersec;
111 } oggds_header_audio_t;
112
113 typedef struct
114 {
115 uint8_t i_packet_type;
116
117 char stream_type[8];
118 char sub_type[4];
119
120 int32_t i_size;
121
122 int64_t i_time_unit;
123 int64_t i_samples_per_unit;
124 int32_t i_default_len;
125
126 int32_t i_buffer_size;
127 int16_t i_bits_per_sample;
128
129 int16_t i_padding_0; /* Because the original is using MSVC packing style */
130
131 union
132 {
133 oggds_header_video_t video;
134 oggds_header_audio_t audio;
135 } header;
136
137 int32_t i_padding_1; /* Because the original is using MSVC packing style */
138
139 } oggds_header_t;
140
141 /*****************************************************************************
142 * Definitions of structures and functions used by this plugins
143 *****************************************************************************/
144 typedef struct
145 {
146 int i_cat;
147 vlc_fourcc_t i_fourcc;
148
149 int b_new;
150
151 mtime_t i_dts;
152 mtime_t i_length;
153 int i_packet_no;
154 int i_serial_no;
155 int i_keyframe_granule_shift; /* Theora only */
156 int i_last_keyframe; /* dirac and theora */
157 int i_num_frames; /* Theora only */
158 uint64_t u_last_granulepos; /* Used for correct EOS page */
159 int64_t i_num_keyframes;
160 ogg_stream_state os;
161
162 oggds_header_t *p_oggds_header;
163 bool b_started;
164 bool b_finished;
165
166 struct
167 {
168 bool b_fisbone_done;
169 bool b_index_done;
170 /* Skeleton index storage */
171 unsigned char *p_index;
172 uint64_t i_index_size;
173 uint64_t i_index_payload; /* real index size */
174 uint64_t i_index_count;
175 /* backup values for rewriting index page later */
176 uint64_t i_index_offset; /* sout offset of the index page */
177 int64_t i_index_packetno; /* index packet no */
178 int i_index_pageno;
179 /* index creation tracking values */
180 uint64_t i_last_keyframe_pos;
181 uint64_t i_last_keyframe_time;
182 } skeleton;
183
184 int i_dirac_last_pt;
185 int i_dirac_last_dt;
186 mtime_t i_baseptsdelay;
187
188 } ogg_stream_t;
189
190 struct sout_mux_sys_t
191 {
192 int i_streams;
193
194 mtime_t i_start_dts;
195 int i_next_serial_no;
196
197 /* number of logical streams pending to be added */
198 int i_add_streams;
199 bool b_can_add_streams;
200
201 /* logical streams pending to be deleted */
202 int i_del_streams;
203 ogg_stream_t **pp_del_streams;
204
205 /* Skeleton */
206 struct
207 {
208 bool b_create;
209 int i_serial_no;
210 int i_packet_no;
211 ogg_stream_state os;
212 bool b_head_done;
213 /* backup values for rewriting fishead page later */
214 uint64_t i_fishead_offset; /* sout offset of the fishead page */
215 int i_index_intvl;
216 float i_index_ratio;
217 } skeleton;
218
219 /* access position */
220 ssize_t i_pos;
221 ssize_t i_data_start;
222 ssize_t i_segment_start;
223 };
224
225 static void OggSetDate( block_t *, mtime_t , mtime_t );
226 static block_t *OggStreamFlush( sout_mux_t *, ogg_stream_state *, mtime_t );
227 static void OggCreateStreamFooter( sout_mux_t *p_mux, ogg_stream_t *p_stream );
228 static void OggRewriteFisheadPage( sout_mux_t *p_mux );
229 static bool AllocateIndex( sout_mux_t *p_mux, sout_input_t *p_input );
230
231 /*****************************************************************************
232 * Open: Open muxer
233 *****************************************************************************/
234 static int Open( vlc_object_t *p_this )
235 {
236 sout_mux_t *p_mux = (sout_mux_t*)p_this;
237 sout_mux_sys_t *p_sys;
238
239 msg_Info( p_mux, "Open" );
240
241 p_sys = malloc( sizeof( sout_mux_sys_t ) );
242 if( !p_sys )
243 return VLC_ENOMEM;
244 p_sys->i_streams = 0;
245 p_sys->i_add_streams = 0;
246 p_sys->b_can_add_streams = true;
247 p_sys->i_del_streams = 0;
248 p_sys->pp_del_streams = 0;
249 p_sys->i_pos = 0;
250 p_sys->skeleton.b_create = false;
251 p_sys->skeleton.b_head_done = false;
252 p_sys->skeleton.i_index_intvl =
253 var_InheritInteger( p_this, SOUT_CFG_PREFIX "indexintvl" );
254 p_sys->skeleton.i_index_ratio =
255 var_InheritFloat( p_this, SOUT_CFG_PREFIX "indexratio" );
256 p_sys->i_data_start = 0;
257 p_sys->i_segment_start = 0;
258 p_mux->p_sys = p_sys;
259 p_mux->pf_control = Control;
260 p_mux->pf_addstream = AddStream;
261 p_mux->pf_delstream = DelStream;
262 p_mux->pf_mux = Mux;
263
264 /* First serial number is random.
265 * (Done like this because on win32 you need to seed the random number
266 * generator once per thread). */
267 uint32_t r;
268 vlc_rand_bytes(&r, sizeof(r));
269 p_sys->i_next_serial_no = r & INT_MAX;
270
271 return VLC_SUCCESS;
272 }
273
274 /*****************************************************************************
275 * Close: Finalize ogg bitstream and close muxer
276 *****************************************************************************/
277 static void Close( vlc_object_t * p_this )
278 {
279 sout_mux_t *p_mux = (sout_mux_t*)p_this;
280 sout_mux_sys_t *p_sys = p_mux->p_sys;
281 ogg_stream_t *p_stream;
282
283 msg_Info( p_mux, "Close" );
284
285 if( p_sys->i_del_streams )
286 {
287 /* Close the current ogg stream */
288 msg_Dbg( p_mux, "writing footers" );
289
290 for(int i = 0; i < p_mux->i_nb_inputs; i++ )
291 {
292 p_stream = (ogg_stream_t *) p_mux->pp_inputs[i]->p_sys;
293 OggCreateStreamFooter( p_mux, p_stream );
294 free( p_stream->skeleton.p_index );
295 }
296
297 /* Remove deleted logical streams */
298 for(int i = 0; i < p_sys->i_del_streams; i++ )
299 {
300 OggCreateStreamFooter( p_mux, p_sys->pp_del_streams[i] );
301 free( p_sys->pp_del_streams[i]->p_oggds_header );
302 free( p_sys->pp_del_streams[i]->skeleton.p_index );
303 free( p_sys->pp_del_streams[i] );
304 }
305 free( p_sys->pp_del_streams );
306 p_sys->i_streams -= p_sys->i_del_streams;
307 }
308
309 /* rewrite fishead with final values */
310 if ( p_sys->skeleton.b_create && p_sys->skeleton.b_head_done )
311 {
312 OggRewriteFisheadPage( p_mux );
313 }
314
315 free( p_sys );
316 }
317
318 /*****************************************************************************
319 * Control:
320 *****************************************************************************/
321 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
322 {
323 VLC_UNUSED(p_mux);
324 bool *pb_bool;
325 char **ppsz;
326
327 switch( i_query )
328 {
329 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
330 pb_bool = (bool*)va_arg( args, bool * );
331 *pb_bool = true;
332 return VLC_SUCCESS;
333
334 case MUX_GET_ADD_STREAM_WAIT:
335 pb_bool = (bool*)va_arg( args, bool * );
336 *pb_bool = true;
337 return VLC_SUCCESS;
338
339 case MUX_GET_MIME:
340 ppsz = (char**)va_arg( args, char ** );
341 *ppsz = strdup( "application/ogg" );
342 return VLC_SUCCESS;
343
344 default:
345 return VLC_EGENERIC;
346 }
347 }
348 /*****************************************************************************
349 * AddStream: Add an elementary stream to the muxed stream
350 *****************************************************************************/
351 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
352 {
353 sout_mux_sys_t *p_sys = p_mux->p_sys;
354 ogg_stream_t *p_stream;
355 uint16_t i_tag;
356
357 msg_Dbg( p_mux, "adding input" );
358
359 p_input->p_sys = p_stream = calloc( 1, sizeof( ogg_stream_t ) );
360 if( !p_stream )
361 return VLC_ENOMEM;
362
363 p_stream->i_cat = p_input->p_fmt->i_cat;
364 p_stream->i_fourcc = p_input->p_fmt->i_codec;
365 p_stream->i_serial_no = p_sys->i_next_serial_no++;
366 p_stream->i_packet_no = 0;
367 p_stream->i_last_keyframe = 0;
368 p_stream->i_num_keyframes = 0;
369 p_stream->i_num_frames = 0;
370
371 p_stream->p_oggds_header = 0;
372
373 p_stream->i_baseptsdelay = -1;
374 p_stream->i_dirac_last_pt = -1;
375 p_stream->i_dirac_last_dt = -1;
376
377 switch( p_input->p_fmt->i_cat )
378 {
379 case VIDEO_ES:
380 if( !p_input->p_fmt->video.i_frame_rate ||
381 !p_input->p_fmt->video.i_frame_rate_base )
382 {
383 msg_Warn( p_mux, "Missing frame rate, assuming 25fps" );
384 p_input->p_fmt->video.i_frame_rate = 25;
385 p_input->p_fmt->video.i_frame_rate_base = 1;
386 }
387
388 switch( p_stream->i_fourcc )
389 {
390 case VLC_CODEC_MP4V:
391 case VLC_CODEC_MPGV:
392 case VLC_CODEC_MP1V:
393 case VLC_CODEC_MP2V:
394 case VLC_CODEC_DIV3:
395 case VLC_CODEC_MJPG:
396 case VLC_CODEC_WMV1:
397 case VLC_CODEC_WMV2:
398 case VLC_CODEC_WMV3:
399 p_stream->p_oggds_header = calloc( 1, sizeof(oggds_header_t) );
400 if( !p_stream->p_oggds_header )
401 {
402 free( p_stream );
403 return VLC_ENOMEM;
404 }
405 p_stream->p_oggds_header->i_packet_type = PACKET_TYPE_HEADER;
406
407 memcpy( p_stream->p_oggds_header->stream_type, "video", 5 );
408 if( p_stream->i_fourcc == VLC_CODEC_MP4V )
409 {
410 memcpy( p_stream->p_oggds_header->sub_type, "XVID", 4 );
411 }
412 else if( p_stream->i_fourcc == VLC_CODEC_DIV3 )
413 {
414 memcpy( p_stream->p_oggds_header->sub_type, "DIV3", 4 );
415 }
416 else
417 {
418 memcpy( p_stream->p_oggds_header->sub_type,
419 &p_stream->i_fourcc, 4 );
420 }
421 p_stream->p_oggds_header->i_size = 0 ;
422 p_stream->p_oggds_header->i_time_unit =
423 INT64_C(10000000) * p_input->p_fmt->video.i_frame_rate_base /
424 (int64_t)p_input->p_fmt->video.i_frame_rate;
425 p_stream->p_oggds_header->i_samples_per_unit = 1;
426 p_stream->p_oggds_header->i_default_len = 1 ; /* ??? */
427 p_stream->p_oggds_header->i_buffer_size = 1024*1024;
428 p_stream->p_oggds_header->i_bits_per_sample = 0;
429 p_stream->p_oggds_header->header.video.i_width = p_input->p_fmt->video.i_width;
430 p_stream->p_oggds_header->header.video.i_height = p_input->p_fmt->video.i_height;
431 msg_Dbg( p_mux, "%4.4s stream", (char *)&p_stream->i_fourcc );
432 break;
433
434 case VLC_CODEC_DIRAC:
435 msg_Dbg( p_mux, "dirac stream" );
436 break;
437
438 case VLC_CODEC_THEORA:
439 msg_Dbg( p_mux, "theora stream" );
440 break;
441
442 case VLC_CODEC_VP8:
443 msg_Dbg( p_mux, "VP8 stream" );
444 break;
445
446 default:
447 FREENULL( p_input->p_sys );
448 return VLC_EGENERIC;
449 }
450 break;
451
452 case AUDIO_ES:
453 switch( p_stream->i_fourcc )
454 {
455 case VLC_CODEC_OPUS:
456 msg_Dbg( p_mux, "opus stream" );
457 break;
458
459 case VLC_CODEC_VORBIS:
460 msg_Dbg( p_mux, "vorbis stream" );
461 break;
462
463 case VLC_CODEC_SPEEX:
464 msg_Dbg( p_mux, "speex stream" );
465 break;
466
467 case VLC_CODEC_FLAC:
468 msg_Dbg( p_mux, "flac stream" );
469 break;
470
471 default:
472 fourcc_to_wf_tag( p_stream->i_fourcc, &i_tag );
473 if( i_tag == WAVE_FORMAT_UNKNOWN )
474 {
475 FREENULL( p_input->p_sys );
476 return VLC_EGENERIC;
477 }
478
479 p_stream->p_oggds_header =
480 malloc( sizeof(oggds_header_t) + p_input->p_fmt->i_extra );
481 if( !p_stream->p_oggds_header )
482 {
483 free( p_stream );
484 return VLC_ENOMEM;
485 }
486 memset( p_stream->p_oggds_header, 0, sizeof(oggds_header_t) );
487 p_stream->p_oggds_header->i_packet_type = PACKET_TYPE_HEADER;
488
489 p_stream->p_oggds_header->i_size = p_input->p_fmt->i_extra;
490
491 if( p_input->p_fmt->i_extra )
492 {
493 memcpy( &p_stream->p_oggds_header[1],
494 p_input->p_fmt->p_extra, p_input->p_fmt->i_extra );
495 }
496
497 memcpy( p_stream->p_oggds_header->stream_type, "audio", 5 );
498
499 memset( p_stream->p_oggds_header->sub_type, 0, 4 );
500 char buf[5];
501 snprintf( buf, sizeof(buf), "%"PRIx16, i_tag );
502 strncpy( p_stream->p_oggds_header->sub_type, buf, 4 );
503
504 p_stream->p_oggds_header->i_time_unit = INT64_C(10000000);
505 p_stream->p_oggds_header->i_default_len = 1;
506 p_stream->p_oggds_header->i_buffer_size = 30*1024 ;
507 p_stream->p_oggds_header->i_samples_per_unit = p_input->p_fmt->audio.i_rate;
508 p_stream->p_oggds_header->i_bits_per_sample = p_input->p_fmt->audio.i_bitspersample;
509 p_stream->p_oggds_header->header.audio.i_channels = p_input->p_fmt->audio.i_channels;
510 p_stream->p_oggds_header->header.audio.i_block_align = p_input->p_fmt->audio.i_blockalign;
511 p_stream->p_oggds_header->header.audio.i_avgbytespersec = p_input->p_fmt->i_bitrate / 8;
512 msg_Dbg( p_mux, "%4.4s stream", (char *)&p_stream->i_fourcc );
513 break;
514 }
515 break;
516
517 case SPU_ES:
518 switch( p_stream->i_fourcc )
519 {
520 case VLC_CODEC_SUBT:
521 p_stream->p_oggds_header = calloc( 1, sizeof(oggds_header_t) );
522 if( !p_stream->p_oggds_header )
523 {
524 free( p_stream );
525 return VLC_ENOMEM;
526 }
527 p_stream->p_oggds_header->i_packet_type = PACKET_TYPE_HEADER;
528
529 memcpy( p_stream->p_oggds_header->stream_type, "text", 4 );
530 msg_Dbg( p_mux, "subtitles stream" );
531 break;
532
533 default:
534 FREENULL( p_input->p_sys );
535 return VLC_EGENERIC;
536 }
537 break;
538 default:
539 FREENULL( p_input->p_sys );
540 return VLC_EGENERIC;
541 }
542
543 p_stream->b_new = true;
544
545 p_sys->i_add_streams++;
546
547 return VLC_SUCCESS;
548 }
549
550 /*****************************************************************************
551 * DelStream: Delete an elementary stream from the muxed stream
552 *****************************************************************************/
553 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
554 {
555 sout_mux_sys_t *p_sys = p_mux->p_sys;
556 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
557 block_t *p_og;
558
559 msg_Dbg( p_mux, "removing input" );
560
561 /* flush all remaining data */
562 if( p_input->p_sys )
563 {
564 if( !p_stream->b_new )
565 {
566 while( block_FifoCount( p_input->p_fifo ) )
567 MuxBlock( p_mux, p_input );
568 }
569
570 if( !p_stream->b_new &&
571 ( p_og = OggStreamFlush( p_mux, &p_stream->os, 0 ) ) )
572 {
573 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
574 p_mux->p_sys->i_pos += sout_AccessOutWrite( p_mux->p_access, p_og );
575 }
576
577 /* move input in delete queue */
578 if( !p_stream->b_new )
579 {
580 p_sys->pp_del_streams = xrealloc( p_sys->pp_del_streams,
581 (p_sys->i_del_streams + 1) * sizeof(ogg_stream_t *) );
582 p_sys->pp_del_streams[p_sys->i_del_streams++] = p_stream;
583 }
584 else
585 {
586 /* wasn't already added so get rid of it */
587 FREENULL( p_stream->p_oggds_header );
588 FREENULL( p_stream );
589 p_sys->i_add_streams--;
590 }
591 }
592
593 p_input->p_sys = NULL;
594
595 return 0;
596 }
597
598 /*****************************************************************************
599 * Ogg Skeleton helpers
600 *****************************************************************************/
601 static int WriteQWVariableLE( uint64_t i_64, uint64_t i_offset,
602 uint8_t *p_buffer, int i_buffer_size )
603 {
604 uint8_t *p_dest = p_buffer + i_offset;
605 int i_written = 0;
606
607 for(;;)
608 {
609 if ( p_dest - p_buffer >= i_buffer_size ) return -1;
610
611 *p_dest = (uint8_t) ( i_64 & 0x7F );
612 i_64 >>= 7;
613 i_written++;
614
615 if ( i_64 == 0 )
616 {
617 *p_dest |= 0x80;
618 return i_written;
619 }
620
621 p_dest++;
622 }
623 }
624
625 static bool AddIndexEntry( sout_mux_t *p_mux, uint64_t i_time, sout_input_t *p_input )
626 {
627 sout_mux_sys_t *p_sys = p_mux->p_sys;
628 ogg_stream_t *p_stream = (ogg_stream_t *) p_input->p_sys;
629 uint64_t i_posdelta;
630 uint64_t i_timedelta;
631 if ( !p_sys->skeleton.b_create || p_mux->p_sys->skeleton.i_index_intvl == 0
632 || !p_stream->skeleton.p_index )
633 return false;
634
635 if ( p_stream->skeleton.i_last_keyframe_pos == 0 )
636 p_stream->skeleton.i_last_keyframe_pos = p_sys->i_segment_start;
637 i_posdelta = p_sys->i_pos - p_stream->skeleton.i_last_keyframe_pos;
638 i_timedelta = i_time - p_stream->skeleton.i_last_keyframe_time;
639
640 if ( i_timedelta <= ( (uint64_t) p_mux->p_sys->skeleton.i_index_intvl * 1000 )
641 || i_posdelta <= 0xFFFF )
642 return false;
643
644 /* do inserts */
645 int i_ret;
646 if ( !p_stream->skeleton.p_index ) return false;
647 uint64_t i_offset = p_stream->skeleton.i_index_payload;
648 i_ret = WriteQWVariableLE( i_posdelta, i_offset, p_stream->skeleton.p_index,
649 p_stream->skeleton.i_index_size );
650 if ( i_ret == -1 ) return false;
651 i_offset += i_ret;
652 i_ret = WriteQWVariableLE( i_timedelta, i_offset, p_stream->skeleton.p_index,
653 p_stream->skeleton.i_index_size );
654 if ( i_ret == -1 ) return false;
655 p_stream->skeleton.i_index_payload = i_offset + i_ret;
656 p_stream->skeleton.i_index_count++;
657
658 /* update diff points */
659 p_stream->skeleton.i_last_keyframe_pos = p_sys->i_pos;
660 p_stream->skeleton.i_last_keyframe_time = i_time;
661 msg_Dbg( p_mux, "Added index on stream %d entry %zd %"PRIu64,
662 p_stream->i_serial_no, p_sys->i_pos - p_sys->i_segment_start, i_time );
663
664 return true;
665 }
666
667 /*****************************************************************************
668 * Ogg bitstream manipulation routines
669 *****************************************************************************/
670 static block_t *OggStreamGetPage( sout_mux_t *p_mux,
671 ogg_stream_state *p_os, mtime_t i_pts,
672 bool flush )
673 {
674 (void)p_mux;
675 block_t *p_og, *p_og_first = NULL;
676 ogg_page og;
677 int (*pager)( ogg_stream_state*, ogg_page* ) = flush ? ogg_stream_flush : ogg_stream_pageout;
678
679 while( pager( p_os, &og ) )
680 {
681 /* Flush all data */
682 p_og = block_Alloc( og.header_len + og.body_len );
683
684 memcpy( p_og->p_buffer, og.header, og.header_len );
685 memcpy( p_og->p_buffer + og.header_len, og.body, og.body_len );
686 p_og->i_dts = 0;
687 p_og->i_pts = i_pts;
688 p_og->i_length = 0;
689
690 i_pts = 0; // write it only once
691
692 block_ChainAppend( &p_og_first, p_og );
693 }
694
695 return p_og_first;
696 }
697
698 static block_t *OggStreamFlush( sout_mux_t *p_mux,
699 ogg_stream_state *p_os, mtime_t i_pts )
700 {
701 return OggStreamGetPage( p_mux, p_os, i_pts, true );
702 }
703
704 static block_t *OggStreamPageOut( sout_mux_t *p_mux,
705 ogg_stream_state *p_os, mtime_t i_pts )
706 {
707 return OggStreamGetPage( p_mux, p_os, i_pts, false );
708 }
709
710 static void OggGetSkeletonIndex( uint8_t **pp_buffer, long *pi_size, ogg_stream_t *p_stream )
711 {
712 uint8_t *p_buffer = calloc( INDEX_BASE_SIZE + p_stream->skeleton.i_index_size, sizeof(uint8_t) );
713 if ( !p_buffer ) return;
714 *pp_buffer = p_buffer;
715
716 memcpy( p_buffer, "index", 6 );
717 SetDWLE( &p_buffer[6], p_stream->i_serial_no );
718 SetQWLE( &p_buffer[10], p_stream->skeleton.i_index_count ); /* num keypoints */
719 SetQWLE( &p_buffer[18], 1000000 );
720 SetQWLE( &p_buffer[34], p_stream->i_length );
721 memcpy( p_buffer + INDEX_BASE_SIZE, p_stream->skeleton.p_index, p_stream->skeleton.i_index_payload );
722 *pi_size = INDEX_BASE_SIZE + p_stream->skeleton.i_index_size;
723 }
724
725 static void OggGetSkeletonFisbone( uint8_t **pp_buffer, long *pi_size,
726 sout_input_t *p_input, sout_mux_t *p_mux )
727 {
728 uint8_t *psz_header;
729 uint8_t *p_buffer;
730 const char *psz_value = NULL;
731 ogg_stream_t *p_stream = (ogg_stream_t *) p_input->p_sys;
732 struct
733 {
734 char *psz_content_type;
735 char *psz_role;
736 long int i_size;
737 unsigned int i_count;
738 } headers = { NULL, NULL, 0, 0 };
739 *pi_size = 0;
740
741 switch( p_stream->i_fourcc )
742 {
743 case VLC_CODEC_VORBIS:
744 psz_value = "audio/vorbis";
745 break;
746 case VLC_CODEC_THEORA:
747 psz_value = "video/theora";
748 break;
749 case VLC_CODEC_SPEEX:
750 psz_value = "audio/speex";
751 break;
752 case VLC_CODEC_FLAC:
753 psz_value = "audio/flac";
754 break;
755 case VLC_CODEC_CMML:
756 psz_value = "text/cmml";
757 break;
758 case VLC_CODEC_KATE:
759 psz_value = "application/kate";
760 break;
761 case VLC_CODEC_VP8:
762 psz_value = "video/x-vp8";
763 break;
764 default:
765 psz_value = "application/octet-stream";
766 msg_Warn( p_mux, "Unkown fourcc for stream %s, setting Content-Type to %s",
767 vlc_fourcc_GetDescription( p_stream->i_cat, p_stream->i_fourcc ),
768 psz_value );
769 }
770
771 /* Content Type Header */
772 if ( asprintf( &headers.psz_content_type, "Content-Type: %s\r\n", psz_value ) != -1 )
773 {
774 headers.i_size += strlen( headers.psz_content_type );
775 headers.i_count++;
776 }
777
778 /* Set Role Header */
779 if ( p_input->p_fmt->i_priority > ES_PRIORITY_NOT_SELECTABLE )
780 {
781 int i_max_prio = ES_PRIORITY_MIN;
782 for ( int i=0; i< p_mux->i_nb_inputs; i++ )
783 {
784 if ( p_mux->pp_inputs[i]->p_fmt->i_cat != p_input->p_fmt->i_cat ) continue;
785 i_max_prio = __MAX( p_mux->pp_inputs[i]->p_fmt->i_priority, i_max_prio );
786 }
787
788 psz_value = NULL;
789 if ( p_input->p_fmt->i_cat == AUDIO_ES || p_input->p_fmt->i_cat == VIDEO_ES )
790 {
791 if ( p_input->p_fmt->i_priority == i_max_prio && i_max_prio >= ES_PRIORITY_SELECTABLE_MIN )
792 psz_value = ( p_input->p_fmt->i_cat == VIDEO_ES ) ?
793 "video/main" : "audio/main";
794 else
795 psz_value = ( p_input->p_fmt->i_cat == VIDEO_ES ) ?
796 "video/alternate" : "audio/alternate";
797 }
798 else if ( p_input->p_fmt->i_cat == SPU_ES )
799 {
800 psz_value = ( p_input->p_fmt->i_codec == VLC_CODEC_KATE ) ?
801 "text/karaoke" : "text/subtitle";
802 }
803
804 if ( psz_value && asprintf( &headers.psz_role, "Role: %s\r\n", psz_value ) != -1 )
805 {
806 headers.i_size += strlen( headers.psz_role );
807 headers.i_count++;
808 }
809 }
810
811 *pp_buffer = calloc( FISBONE_BASE_SIZE + headers.i_size, sizeof(uint8_t) );
812 if ( !*pp_buffer ) return;
813 p_buffer = *pp_buffer;
814
815 memcpy( p_buffer, "fisbone", 8 );
816 SetDWLE( &p_buffer[8], FISBONE_BASE_OFFSET ); /* offset to message headers */
817 SetDWLE( &p_buffer[12], p_stream->i_serial_no );
818 SetDWLE( &p_buffer[16], headers.i_count );
819
820 /* granulerate den */
821 switch ( p_input->p_fmt->i_cat )
822 {
823 case VIDEO_ES:
824 SetQWLE( &(*pp_buffer)[20], p_input->p_fmt->video.i_frame_rate );
825 SetQWLE( &(*pp_buffer)[28], p_input->p_fmt->video.i_frame_rate_base );
826 break;
827 case AUDIO_ES:
828 SetQWLE( &(*pp_buffer)[20], p_input->p_fmt->audio.i_rate );
829 SetQWLE( &(*pp_buffer)[28], 1 );
830 break;
831 default:
832 SetQWLE( &(*pp_buffer)[20], 1000 );
833 SetQWLE( &(*pp_buffer)[28], 1 );
834 }
835
836 /* preroll */
837 if ( p_input->p_fmt->p_extra )
838 SetDWLE( &(*pp_buffer)[44], xiph_CountHeaders( p_input->p_fmt->p_extra, p_input->p_fmt->i_extra ) );
839
840 if ( headers.i_size > 0 )
841 {
842 psz_header = *pp_buffer + FISBONE_BASE_SIZE;
843 memcpy( psz_header, headers.psz_content_type, strlen( headers.psz_content_type ) );
844 psz_header += strlen( headers.psz_content_type );
845 if ( headers.psz_role )
846 memcpy( psz_header, headers.psz_role, strlen( headers.psz_role ) );
847 }
848 *pi_size = FISBONE_BASE_SIZE + headers.i_size;
849
850 free( headers.psz_content_type );
851 free( headers.psz_role );
852 }
853
854 static void OggFillSkeletonFishead( uint8_t *p_buffer, sout_mux_t *p_mux )
855 {
856 memcpy( p_buffer, "fishead", 8 );
857 SetWLE( &p_buffer[8], 4 );
858 SetWLE( &p_buffer[10], 0 );
859 SetQWLE( &p_buffer[20], 1000 );
860 SetQWLE( &p_buffer[36], 1000 );
861 SetQWLE( &p_buffer[64], p_mux->p_sys->i_pos - p_mux->p_sys->i_segment_start ); /* segment length */
862 SetQWLE( &p_buffer[72], p_mux->p_sys->i_data_start - p_mux->p_sys->i_segment_start ); /* data start offset */
863 }
864
865 static int32_t OggFillDsHeader( uint8_t *p_buffer, oggds_header_t *p_oggds_header, int i_cat )
866 {
867 int index = 0;
868 p_buffer[index] = p_oggds_header->i_packet_type;
869 index++;
870 memcpy( &p_buffer[index], p_oggds_header->stream_type, sizeof(p_oggds_header->stream_type) );
871 index += sizeof(p_oggds_header->stream_type);
872 memcpy(&p_buffer[index], p_oggds_header->sub_type, sizeof(p_oggds_header->sub_type) );
873 index += sizeof(p_oggds_header->sub_type);
874
875 /* The size is filled at the end */
876 uint8_t *p_isize = &p_buffer[index];
877 index += 4;
878
879 SetQWLE( &p_buffer[index], p_oggds_header->i_time_unit );
880 index += 8;
881 SetQWLE( &p_buffer[index], p_oggds_header->i_samples_per_unit );
882 index += 8;
883 SetDWLE( &p_buffer[index], p_oggds_header->i_default_len );
884 index += 4;
885 SetDWLE( &p_buffer[index], p_oggds_header->i_buffer_size );
886 index += 4;
887 SetWLE( &p_buffer[index], p_oggds_header->i_bits_per_sample );
888 index += 2;
889 SetWLE( &p_buffer[index], p_oggds_header->i_padding_0 );
890 index += 2;
891 /* audio or video */
892 switch( i_cat )
893 {
894 case VIDEO_ES:
895 SetDWLE( &p_buffer[index], p_oggds_header->header.video.i_width );
896 SetDWLE( &p_buffer[index+4], p_oggds_header->header.video.i_height );
897 break;
898 case AUDIO_ES:
899 SetWLE( &p_buffer[index], p_oggds_header->header.audio.i_channels );
900 SetWLE( &p_buffer[index+2], p_oggds_header->header.audio.i_block_align );
901 SetDWLE( &p_buffer[index+4], p_oggds_header->header.audio.i_avgbytespersec );
902 break;
903 }
904 index += 8;
905 SetDWLE( &p_buffer[index], p_oggds_header->i_padding_1 );
906 index += 4;
907
908 /* extra header */
909 if( p_oggds_header->i_size > 0 )
910 {
911 memcpy( &p_buffer[index], p_oggds_header + sizeof(*p_oggds_header), p_oggds_header->i_size );
912 index += p_oggds_header->i_size;
913 }
914
915 SetDWLE( p_isize, index-1 );
916 return index;
917 }
918
919 static void OggFillVP8Header( uint8_t *p_buffer, sout_input_t *p_input )
920 {
921 memcpy( p_buffer, "OVP80\x01\x01\x00", 8 );
922 SetWBE( &p_buffer[8], p_input->p_fmt->video.i_width );
923 SetDWBE( &p_buffer[14], p_input->p_fmt->video.i_sar_den );/* 24 bits, 15~ */
924 SetDWBE( &p_buffer[11], p_input->p_fmt->video.i_sar_num );/* 24 bits, 12~ */
925 SetWBE( &p_buffer[10], p_input->p_fmt->video.i_height );
926 SetDWBE( &p_buffer[18], p_input->p_fmt->video.i_frame_rate );
927 SetDWBE( &p_buffer[22], p_input->p_fmt->video.i_frame_rate_base );
928 }
929
930 static bool OggCreateHeaders( sout_mux_t *p_mux )
931 {
932 block_t *p_hdr = NULL;
933 block_t *p_og = NULL;
934 ogg_packet op;
935 ogg_stream_t *p_stream;
936 sout_mux_sys_t *p_sys = p_mux->p_sys;
937 int i;
938
939 if( sout_AccessOutControl( p_mux->p_access,
940 ACCESS_OUT_CAN_SEEK,
941 &p_sys->skeleton.b_create ) )
942 {
943 p_sys->skeleton.b_create = false;
944 }
945
946 p_sys->skeleton.b_create &= !! p_mux->i_nb_inputs;
947
948 /* no skeleton for solo vorbis/speex/opus tracks */
949 if ( p_mux->i_nb_inputs == 1 && p_mux->pp_inputs[0]->p_fmt->i_cat == AUDIO_ES )
950 {
951 p_sys->skeleton.b_create = false;
952 }
953 else
954 {
955 for ( int i=0; i< p_mux->i_nb_inputs; i++ )
956 {
957 p_stream = (ogg_stream_t*) p_mux->pp_inputs[i]->p_sys;
958 if ( p_stream->p_oggds_header )
959 {
960 /* We don't want skeleton for OggDS */
961 p_sys->skeleton.b_create = false;
962 break;
963 }
964 }
965 }
966
967 /* Skeleton's Fishead must be the first page of the stream */
968 if ( p_sys->skeleton.b_create && !p_sys->skeleton.b_head_done )
969 {
970 msg_Dbg( p_mux, "creating header for skeleton" );
971 p_sys->skeleton.i_serial_no = p_sys->i_next_serial_no++;
972 ogg_stream_init( &p_sys->skeleton.os, p_sys->skeleton.i_serial_no );
973 op.bytes = 80;
974 op.packet = calloc( 1, op.bytes );
975 if ( op.packet == NULL ) return false;
976 op.b_o_s = 1;
977 op.e_o_s = 0;
978 op.granulepos = 0;
979 op.packetno = 0;
980 OggFillSkeletonFishead( op.packet, p_mux );
981 ogg_stream_packetin( &p_sys->skeleton.os, &op );
982 p_og = OggStreamFlush( p_mux, &p_sys->skeleton.os, 0 );
983 block_ChainAppend( &p_hdr, p_og );
984 p_sys->skeleton.b_head_done = true;
985 p_sys->skeleton.i_fishead_offset = p_sys->i_pos;
986 }
987
988 /* Write header for each stream. All b_o_s (beginning of stream) packets
989 * must appear first in the ogg stream so we take care of them first. */
990 for( int pass = 0; pass < 2; pass++ )
991 {
992 for( i = 0; i < p_mux->i_nb_inputs; i++ )
993 {
994 sout_input_t *p_input = p_mux->pp_inputs[i];
995 p_stream = (ogg_stream_t*)p_input->p_sys;
996
997 bool video = ( p_stream->i_fourcc == VLC_CODEC_THEORA || p_stream->i_fourcc == VLC_CODEC_DIRAC );
998 if( ( ( pass == 0 && !video ) || ( pass == 1 && video ) ) )
999 continue;
1000
1001 msg_Dbg( p_mux, "creating header for %4.4s",
1002 (char *)&p_stream->i_fourcc );
1003
1004 ogg_stream_init( &p_stream->os, p_stream->i_serial_no );
1005 p_stream->b_new = false;
1006 p_stream->i_packet_no = 0;
1007 p_stream->b_started = true;
1008
1009 if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
1010 p_stream->i_fourcc == VLC_CODEC_SPEEX ||
1011 p_stream->i_fourcc == VLC_CODEC_OPUS ||
1012 p_stream->i_fourcc == VLC_CODEC_THEORA )
1013 {
1014 /* First packet in order: vorbis/speex/theora info */
1015 unsigned pi_size[XIPH_MAX_HEADER_COUNT];
1016 void *pp_data[XIPH_MAX_HEADER_COUNT];
1017 unsigned i_count;
1018 if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
1019 p_input->p_fmt->i_extra, p_input->p_fmt->p_extra ) )
1020 {
1021 i_count = 0;
1022 pi_size[0] = 0;
1023 pp_data[0] = NULL;
1024 }
1025
1026 op.bytes = pi_size[0];
1027 op.packet = pp_data[0];
1028 if( pi_size[0] <= 0 )
1029 msg_Err( p_mux, "header data corrupted");
1030
1031 op.b_o_s = 1;
1032 op.e_o_s = 0;
1033 op.granulepos = 0;
1034 op.packetno = p_stream->i_packet_no++;
1035 ogg_stream_packetin( &p_stream->os, &op );
1036 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1037
1038 /* Get keyframe_granule_shift for theora granulepos calculation */
1039 if( p_stream->i_fourcc == VLC_CODEC_THEORA )
1040 {
1041 p_stream->i_keyframe_granule_shift =
1042 ( (op.packet[40] & 0x03) << 3 ) | ( (op.packet[41] & 0xe0) >> 5 );
1043 }
1044 }
1045 else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
1046 {
1047 op.packet = p_input->p_fmt->p_extra;
1048 op.bytes = p_input->p_fmt->i_extra;
1049 op.b_o_s = 1;
1050 op.e_o_s = 0;
1051 op.granulepos = ~0;
1052 op.packetno = p_stream->i_packet_no++;
1053 ogg_stream_packetin( &p_stream->os, &op );
1054 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1055 }
1056 else if( p_stream->i_fourcc == VLC_CODEC_FLAC )
1057 {
1058 /* flac stream marker (yeah, only that in the 1st packet) */
1059 op.packet = (unsigned char *)"fLaC";
1060 op.bytes = 4;
1061 op.b_o_s = 1;
1062 op.e_o_s = 0;
1063 op.granulepos = 0;
1064 op.packetno = p_stream->i_packet_no++;
1065 ogg_stream_packetin( &p_stream->os, &op );
1066 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1067 }
1068 else if( p_stream->i_fourcc == VLC_CODEC_VP8 )
1069 {
1070 /* VP8 Header */
1071 op.packet = malloc( 26 );
1072 if( !op.packet )
1073 return false;
1074 op.bytes = 26;
1075 OggFillVP8Header( op.packet, p_input );
1076 op.b_o_s = 1;
1077 op.e_o_s = 0;
1078 op.granulepos = 0;
1079 op.packetno = p_stream->i_packet_no++;
1080 ogg_stream_packetin( &p_stream->os, &op );
1081 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1082 free( op.packet );
1083 }
1084 else if( p_stream->p_oggds_header )
1085 {
1086 /* ds header */
1087 op.packet = malloc( sizeof(*p_stream->p_oggds_header) + p_stream->p_oggds_header->i_size );
1088 if( !op.packet )
1089 return false;
1090 op.bytes = OggFillDsHeader( op.packet, p_stream->p_oggds_header, p_stream->i_cat );
1091 op.b_o_s = 1;
1092 op.e_o_s = 0;
1093 op.granulepos = 0;
1094 op.packetno = p_stream->i_packet_no++;
1095 ogg_stream_packetin( &p_stream->os, &op );
1096 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1097 free( op.packet );
1098 }
1099
1100 block_ChainAppend( &p_hdr, p_og );
1101 }
1102 }
1103
1104 /* Create fisbones if any */
1105 if ( p_sys->skeleton.b_create )
1106 {
1107 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1108 {
1109 sout_input_t *p_input = p_mux->pp_inputs[i];
1110 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
1111 if ( p_stream->skeleton.b_fisbone_done ) continue;
1112 OggGetSkeletonFisbone( &op.packet, &op.bytes, p_input, p_mux );
1113 if ( op.packet == NULL ) return false;
1114 op.b_o_s = 0;
1115 op.e_o_s = 0;
1116 op.granulepos = 0;
1117 op.packetno = p_sys->skeleton.i_packet_no++;
1118 ogg_stream_packetin( &p_sys->skeleton.os, &op );
1119 p_og = OggStreamFlush( p_mux, &p_sys->skeleton.os, 0 );
1120 block_ChainAppend( &p_hdr, p_og );
1121 p_stream->skeleton.b_fisbone_done = true;
1122 }
1123 }
1124
1125 /* Write previous headers */
1126 for( p_og = p_hdr; p_og != NULL; p_og = p_og->p_next )
1127 {
1128 /* flag headers to be resent for streaming clients */
1129 p_og->i_flags |= BLOCK_FLAG_HEADER;
1130 }
1131 p_mux->p_sys->i_pos += sout_AccessOutWrite( p_mux->p_access, p_hdr );
1132 p_hdr = NULL;
1133
1134 /* Create indexes if any */
1135 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1136 {
1137 sout_input_t *p_input = p_mux->pp_inputs[i];
1138 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
1139 /* flush stream && save offset */
1140 if ( p_sys->skeleton.b_create && !p_stream->skeleton.b_index_done )
1141 {
1142 if ( !p_stream->skeleton.p_index ) AllocateIndex( p_mux, p_input );
1143 if ( p_stream->skeleton.p_index )
1144 {
1145 msg_Dbg( p_mux, "Creating index for stream %d", p_stream->i_serial_no );
1146 OggGetSkeletonIndex( &op.packet, &op.bytes, p_stream );
1147 if ( op.packet == NULL ) return false;
1148 op.b_o_s = 0;
1149 op.e_o_s = 0;
1150 op.granulepos = 0;
1151 op.packetno = p_sys->skeleton.i_packet_no++;
1152
1153 /* backup some values */
1154 p_stream->skeleton.i_index_offset = p_mux->p_sys->i_pos;
1155 p_stream->skeleton.i_index_packetno = p_sys->skeleton.os.packetno;
1156 p_stream->skeleton.i_index_pageno = p_sys->skeleton.os.pageno;
1157
1158 ogg_stream_packetin( &p_sys->skeleton.os, &op );
1159 p_og = OggStreamFlush( p_mux, &p_sys->skeleton.os, 0 );
1160 p_mux->p_sys->i_pos += sout_AccessOutWrite( p_mux->p_access, p_og );
1161 }
1162 p_stream->skeleton.b_index_done = true;
1163 }
1164 }
1165
1166 /* Take care of the non b_o_s headers */
1167 for( i = 0; i < p_mux->i_nb_inputs; i++ )
1168 {
1169 sout_input_t *p_input = p_mux->pp_inputs[i];
1170 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
1171
1172 if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
1173 p_stream->i_fourcc == VLC_CODEC_SPEEX ||
1174 p_stream->i_fourcc == VLC_CODEC_OPUS ||
1175 p_stream->i_fourcc == VLC_CODEC_THEORA )
1176 {
1177 unsigned pi_size[XIPH_MAX_HEADER_COUNT];
1178 void *pp_data[XIPH_MAX_HEADER_COUNT];
1179 unsigned i_count;
1180 if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
1181 p_input->p_fmt->i_extra, p_input->p_fmt->p_extra ) )
1182 i_count = 0;
1183
1184 /* Special case, headers are already there in the incoming stream.
1185 * We need to gather them an mark them as headers. */
1186 for( unsigned i = 1; i < i_count; i++ )
1187 {
1188 op.bytes = pi_size[i];
1189 op.packet = pp_data[i];
1190 if( pi_size[i] <= 0 )
1191 msg_Err( p_mux, "header data corrupted");
1192
1193 op.b_o_s = 0;
1194 op.e_o_s = 0;
1195 op.granulepos = 0;
1196 op.packetno = p_stream->i_packet_no++;
1197 ogg_stream_packetin( &p_stream->os, &op );
1198 msg_Dbg( p_mux, "adding non bos, secondary header" );
1199 if( i == i_count - 1 )
1200 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1201 else
1202 p_og = OggStreamPageOut( p_mux, &p_stream->os, 0 );
1203 if( p_og )
1204 block_ChainAppend( &p_hdr, p_og );
1205 }
1206 }
1207 else if( p_stream->i_fourcc != VLC_CODEC_FLAC &&
1208 p_stream->i_fourcc != VLC_CODEC_DIRAC )
1209 {
1210 uint8_t com[128];
1211 int i_com;
1212
1213 /* comment */
1214 com[0] = PACKET_TYPE_COMMENT;
1215 i_com = snprintf( (char *)(com+1), 127,
1216 PACKAGE_VERSION" stream output" )
1217 + 1;
1218 op.packet = com;
1219 op.bytes = i_com;
1220 op.b_o_s = 0;
1221 op.e_o_s = 0;
1222 op.granulepos = 0;
1223 op.packetno = p_stream->i_packet_no++;
1224 ogg_stream_packetin( &p_stream->os, &op );
1225 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1226 block_ChainAppend( &p_hdr, p_og );
1227 }
1228
1229 /* Special case for mp4v and flac */
1230 if( ( p_stream->i_fourcc == VLC_CODEC_MP4V ||
1231 p_stream->i_fourcc == VLC_CODEC_FLAC ) &&
1232 p_input->p_fmt->i_extra )
1233 {
1234 /* Send a packet with the VOL data for mp4v
1235 * or STREAMINFO for flac */
1236 msg_Dbg( p_mux, "writing extra data" );
1237 op.bytes = p_input->p_fmt->i_extra;
1238 op.packet = p_input->p_fmt->p_extra;
1239 uint8_t flac_streaminfo[34 + 4];
1240 if( p_stream->i_fourcc == VLC_CODEC_FLAC )
1241 {
1242 if (op.bytes == 42 && !memcmp(op.packet, "fLaC", 4)) {
1243 op.bytes -= 4;
1244 memcpy(flac_streaminfo, op.packet + 4, 38);
1245 op.packet = flac_streaminfo;
1246 } else if (op.bytes == 34) {
1247 op.bytes += 4;
1248 memcpy(flac_streaminfo + 4, op.packet, 34);
1249 flac_streaminfo[0] = 0x80; /* last block, streaminfo */
1250 flac_streaminfo[1] = 0;
1251 flac_streaminfo[2] = 0;
1252 flac_streaminfo[3] = 34; /* block size */
1253 op.packet = flac_streaminfo;
1254 } else {
1255 msg_Err(p_mux, "Invalid FLAC streaminfo (%ld bytes)",
1256 op.bytes);
1257 }
1258 }
1259 op.b_o_s = 0;
1260 op.e_o_s = 0;
1261 op.granulepos = 0;
1262 op.packetno = p_stream->i_packet_no++;
1263 ogg_stream_packetin( &p_stream->os, &op );
1264 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
1265 block_ChainAppend( &p_hdr, p_og );
1266 }
1267 }
1268
1269 if ( p_sys->skeleton.b_create )
1270 {
1271 msg_Dbg( p_mux, "ending skeleton" );
1272 op.packet = NULL;
1273 op.bytes = 0;
1274 op.b_o_s = 0;
1275 op.e_o_s = 1;
1276 op.granulepos = 0;
1277 op.packetno = p_sys->skeleton.i_packet_no++;
1278 ogg_stream_packetin( &p_sys->skeleton.os, &op );
1279 p_og = OggStreamFlush( p_mux, &p_sys->skeleton.os, 0 );
1280 block_ChainAppend( &p_hdr, p_og );
1281 }
1282
1283 /* set HEADER flag */
1284 /* flag headers to be resent for streaming clients */
1285 for( p_og = p_hdr; p_og != NULL; p_og = p_og->p_next )
1286 {
1287 p_og->i_flags |= BLOCK_FLAG_HEADER;
1288 }
1289
1290 /* Write previous headers */
1291 p_mux->p_sys->i_pos += sout_AccessOutWrite( p_mux->p_access, p_hdr );
1292
1293 return true;
1294 }
1295
1296 static void OggCreateStreamFooter( sout_mux_t *p_mux, ogg_stream_t *p_stream )
1297 {
1298 block_t *p_og;
1299 ogg_packet op;
1300 sout_mux_sys_t *p_sys = p_mux->p_sys;
1301
1302 /* as stream is finished, overwrite the index, if there was any */
1303 if ( p_sys->skeleton.b_create && p_stream->skeleton.p_index
1304 && p_stream->skeleton.i_index_payload )
1305 {
1306 sout_AccessOutSeek( p_mux->p_access, p_stream->skeleton.i_index_offset );
1307 OggGetSkeletonIndex( &op.packet, &op.bytes, p_stream );
1308 if ( op.packet != NULL )
1309 {
1310 msg_Dbg(p_mux, "Rewriting index at %"PRId64, p_stream->skeleton.i_index_offset );
1311 ogg_stream_reset_serialno( &p_sys->skeleton.os, p_sys->skeleton.i_serial_no );
1312 op.b_o_s = 0;
1313 op.e_o_s = 0;
1314 op.granulepos = 0;
1315 op.packetno = p_stream->skeleton.i_index_packetno + 1;
1316 /* fake our stream state */
1317 p_sys->skeleton.os.pageno = p_stream->skeleton.i_index_pageno;
1318 p_sys->skeleton.os.packetno = p_stream->skeleton.i_index_packetno;
1319 p_sys->skeleton.os.granulepos = 0;
1320 p_sys->skeleton.os.b_o_s = 1;
1321 p_sys->skeleton.os.e_o_s = 0;
1322 ogg_stream_packetin( &p_sys->skeleton.os, &op );
1323 p_og = OggStreamFlush( p_mux, &p_sys->skeleton.os, 0 );
1324 sout_AccessOutWrite( p_mux->p_access, p_og );
1325 }
1326 sout_AccessOutSeek( p_mux->p_access, p_sys->i_pos );
1327 }
1328
1329 /* clear skeleton */
1330 p_stream->skeleton.b_fisbone_done = false;
1331 p_stream->skeleton.b_index_done = false;
1332 p_stream->skeleton.i_index_offset = 0;
1333 p_stream->skeleton.i_index_payload = 0;
1334 p_stream->skeleton.i_last_keyframe_pos = 0;
1335 p_stream->skeleton.i_last_keyframe_time = 0;
1336 /* clear accounting */
1337 p_stream->i_num_frames = 0;
1338 p_stream->i_num_keyframes = 0;
1339
1340 /* Write eos packet for stream. */
1341 op.packet = NULL;
1342 op.bytes = 0;
1343 op.b_o_s = 0;
1344 op.e_o_s = 1;
1345 op.granulepos = p_stream->u_last_granulepos;
1346 op.packetno = p_stream->i_packet_no++;
1347 ogg_stream_packetin( &p_stream->os, &op );
1348
1349 /* flush it with all remaining data */
1350 if( ( p_og = OggStreamFlush( p_mux, &p_stream->os, 0 ) ) )
1351 {
1352 /* Write footer */
1353 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
1354 p_mux->p_sys->i_pos += sout_AccessOutWrite( p_mux->p_access, p_og );
1355 }
1356
1357 ogg_stream_clear( &p_stream->os );
1358 }
1359
1360 static void OggSetDate( block_t *p_og, mtime_t i_dts, mtime_t i_length )
1361 {
1362 int i_count;
1363 block_t *p_tmp;
1364 mtime_t i_delta;
1365
1366 for( p_tmp = p_og, i_count = 0; p_tmp != NULL; p_tmp = p_tmp->p_next )
1367 {
1368 i_count++;
1369 }
1370
1371 if( i_count == 0 ) return; /* ignore. */
1372
1373 i_delta = i_length / i_count;
1374
1375 for( p_tmp = p_og; p_tmp != NULL; p_tmp = p_tmp->p_next )
1376 {
1377 p_tmp->i_dts = i_dts;
1378 p_tmp->i_length = i_delta;
1379
1380 i_dts += i_delta;
1381 }
1382 }
1383
1384 static void OggRewriteFisheadPage( sout_mux_t *p_mux )
1385 {
1386 sout_mux_sys_t *p_sys = p_mux->p_sys;
1387 ogg_packet op;
1388 op.bytes = 80;
1389 op.packet = calloc( 1, op.bytes );
1390 if ( op.packet != NULL )
1391 {
1392 op.b_o_s = 1;
1393 op.e_o_s = 0;
1394 op.granulepos = 0;
1395 op.packetno = 0;
1396 ogg_stream_reset_serialno( &p_sys->skeleton.os, p_sys->skeleton.i_serial_no );
1397 OggFillSkeletonFishead( op.packet, p_mux );
1398 ogg_stream_packetin( &p_sys->skeleton.os, &op );
1399 msg_Dbg( p_mux, "rewriting fishead at %"PRId64, p_mux->p_sys->skeleton.i_fishead_offset );
1400 sout_AccessOutSeek( p_mux->p_access, p_mux->p_sys->skeleton.i_fishead_offset );
1401 sout_AccessOutWrite( p_mux->p_access,
1402 OggStreamFlush( p_mux, &p_sys->skeleton.os, 0 ) );
1403 sout_AccessOutSeek( p_mux->p_access, p_mux->p_sys->i_pos );
1404 }
1405 }
1406
1407 static bool AllocateIndex( sout_mux_t *p_mux, sout_input_t *p_input )
1408 {
1409 ogg_stream_t *p_stream = (ogg_stream_t *) p_input->p_sys;
1410 size_t i_size;
1411
1412 if ( p_stream->i_length )
1413 {
1414 uint64_t i_interval = (uint64_t)p_mux->p_sys->skeleton.i_index_intvl * 1000;
1415 uint64_t i;
1416
1417 if( p_input->p_fmt->i_cat == VIDEO_ES &&
1418 p_input->p_fmt->video.i_frame_rate )
1419 {
1420 /* optimize for fps < 1 */
1421 i_interval= __MAX( p_mux->p_sys->skeleton.i_index_intvl * 1000,
1422 INT64_C(10000000) *
1423 p_input->p_fmt->video.i_frame_rate_base /
1424 p_input->p_fmt->video.i_frame_rate );
1425 }
1426
1427 size_t i_tuple_size = 0;
1428 /* estimate length of pos value */
1429 if ( p_input->p_fmt->i_bitrate )
1430 {
1431 i = i_interval * p_input->p_fmt->i_bitrate / 1000000;
1432 while ( i <<= 1 ) i_tuple_size++;
1433 }
1434 else
1435 {
1436 /* Likely 64KB<<keyframe interval<<16MB */
1437 /* We can't really guess due to muxing */
1438 i_tuple_size = 24 / 8;
1439 }
1440
1441 /* add length of interval value */
1442 i = i_interval;
1443 while ( i <<= 1 ) i_tuple_size++;
1444
1445 i_size = i_tuple_size * ( p_stream->i_length / i_interval + 2 );
1446 }
1447 else
1448 {
1449 i_size = ( INT64_C(3600) * 11.2 * 1000 / p_mux->p_sys->skeleton.i_index_intvl )
1450 * p_mux->p_sys->skeleton.i_index_ratio;
1451 msg_Dbg( p_mux, "No stream length, using default allocation for index" );
1452 }
1453 i_size *= ( 8.0 / 7 ); /* 7bits encoding overhead */
1454 msg_Dbg( p_mux, "allocating %zu bytes for index", i_size );
1455 p_stream->skeleton.p_index = calloc( i_size, sizeof(uint8_t) );
1456 if ( !p_stream->skeleton.p_index ) return false;
1457 p_stream->skeleton.i_index_size = i_size;
1458 p_stream->skeleton.i_index_payload = 0;
1459 return true;
1460 }
1461
1462 /*****************************************************************************
1463 * Mux: multiplex available data in input fifos into the Ogg bitstream
1464 *****************************************************************************/
1465 static int Mux( sout_mux_t *p_mux )
1466 {
1467 sout_mux_sys_t *p_sys = p_mux->p_sys;
1468 mtime_t i_dts;
1469
1470 /* End any stream that ends in that group */
1471 if ( p_sys->i_del_streams )
1472 {
1473 /* Remove deleted logical streams */
1474 for( int i = 0; i < p_sys->i_del_streams; i++ )
1475 {
1476 OggCreateStreamFooter( p_mux, p_sys->pp_del_streams[i] );
1477 FREENULL( p_sys->pp_del_streams[i]->p_oggds_header );
1478 FREENULL( p_sys->pp_del_streams[i] );
1479 }
1480 FREENULL( p_sys->pp_del_streams );
1481 p_sys->i_del_streams = 0;
1482 }
1483
1484 if ( p_sys->i_streams == 0 )
1485 {
1486 /* All streams have been deleted, or none have ever been created
1487 From this point, we are allowed to start a new group of logical streams */
1488 p_sys->skeleton.b_head_done = false;
1489 p_sys->b_can_add_streams = true;
1490 p_sys->i_segment_start = p_sys->i_pos;
1491 }
1492
1493 if ( p_sys->i_add_streams )
1494 {
1495 if ( !p_sys->b_can_add_streams )
1496 {
1497 msg_Warn( p_mux, "Can't add new stream %d/%d: Considerer increasing sout-mux-caching variable", p_sys->i_del_streams, p_mux->p_sys->i_streams);
1498 msg_Warn( p_mux, "Resetting and setting new identity to current streams");
1499
1500 /* resetting all active streams */
1501 for ( int i=0; i < p_mux->p_sys->i_streams; i++ )
1502 {
1503 ogg_stream_t * p_stream = (ogg_stream_t *) p_mux->pp_inputs[i]->p_sys;
1504 if ( p_stream->b_finished || !p_stream->b_started ) continue;
1505 OggCreateStreamFooter( p_mux, p_stream );
1506 p_stream->i_serial_no = p_sys->i_next_serial_no++;
1507 p_stream->i_packet_no = 0;
1508 p_stream->b_finished = true;
1509 }
1510
1511 /* rewrite fishead with final values */
1512 if ( p_sys->skeleton.b_head_done )
1513 {
1514 OggRewriteFisheadPage( p_mux );
1515 }
1516
1517 p_sys->b_can_add_streams = true;
1518 p_sys->skeleton.b_head_done = false;
1519 p_sys->i_segment_start = p_sys->i_pos;
1520 }
1521
1522 /* Open new ogg stream */
1523 if( sout_MuxGetStream( p_mux, 1, &i_dts) < 0 )
1524 {
1525 msg_Dbg( p_mux, "waiting for data..." );
1526 return VLC_SUCCESS;
1527 }
1528 msg_Dbg( p_mux, "writing streams headers" );
1529 p_sys->i_start_dts = i_dts;
1530 p_sys->i_streams = p_mux->i_nb_inputs;
1531 p_sys->i_del_streams = 0;
1532 p_sys->i_add_streams = 0;
1533 p_sys->skeleton.b_create = true;
1534
1535 if ( ! OggCreateHeaders( p_mux ) )
1536 return VLC_ENOMEM;
1537
1538 /* If we're switching to end of headers, then that's data start */
1539 if ( p_sys->b_can_add_streams )
1540 {
1541 msg_Dbg( p_mux, "data starts from %zu", p_sys->i_pos );
1542 p_sys->i_data_start = p_sys->i_pos;
1543 }
1544
1545 /* Since we started sending secondaryheader or data pages,
1546 * we're no longer allowed to create new streams, until all streams end */
1547 p_sys->b_can_add_streams = false;
1548 }
1549
1550 /* Do the regular data mux thing */
1551 for( ;; )
1552 {
1553 int i_stream = sout_MuxGetStream( p_mux, 1, NULL );
1554 if( i_stream < 0 )
1555 return VLC_SUCCESS;
1556 MuxBlock( p_mux, p_mux->pp_inputs[i_stream] );
1557 }
1558
1559 return VLC_SUCCESS;
1560 }
1561
1562 static int MuxBlock( sout_mux_t *p_mux, sout_input_t *p_input )
1563 {
1564 sout_mux_sys_t *p_sys = p_mux->p_sys;
1565 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
1566 block_t *p_data = block_FifoGet( p_input->p_fifo );
1567 block_t *p_og = NULL;
1568 ogg_packet op;
1569 uint64_t i_time;
1570
1571 if( p_stream->i_fourcc != VLC_CODEC_VORBIS &&
1572 p_stream->i_fourcc != VLC_CODEC_FLAC &&
1573 p_stream->i_fourcc != VLC_CODEC_SPEEX &&
1574 p_stream->i_fourcc != VLC_CODEC_OPUS &&
1575 p_stream->i_fourcc != VLC_CODEC_THEORA &&
1576 p_stream->i_fourcc != VLC_CODEC_VP8 &&
1577 p_stream->i_fourcc != VLC_CODEC_DIRAC )
1578 {
1579 p_data = block_Realloc( p_data, 1, p_data->i_buffer );
1580 p_data->p_buffer[0] = PACKET_IS_SYNCPOINT; // FIXME
1581 }
1582
1583 if ( p_stream->i_fourcc == VLC_CODEC_DIRAC && p_stream->i_baseptsdelay < 0 )
1584 p_stream->i_baseptsdelay = p_data->i_pts - p_data->i_dts;
1585
1586 op.packet = p_data->p_buffer;
1587 op.bytes = p_data->i_buffer;
1588 op.b_o_s = 0;
1589 op.e_o_s = 0;
1590 op.packetno = p_stream->i_packet_no++;
1591 op.granulepos = -1;
1592
1593 if( p_stream->i_cat == AUDIO_ES )
1594 {
1595 if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
1596 p_stream->i_fourcc == VLC_CODEC_FLAC ||
1597 p_stream->i_fourcc == VLC_CODEC_OPUS ||
1598 p_stream->i_fourcc == VLC_CODEC_SPEEX )
1599 {
1600 /* number of sample from begining + current packet */
1601 op.granulepos =
1602 ( p_data->i_dts - p_sys->i_start_dts + p_data->i_length ) *
1603 (mtime_t)p_input->p_fmt->audio.i_rate / CLOCK_FREQ;
1604
1605 i_time = p_data->i_dts - p_sys->i_start_dts;
1606 AddIndexEntry( p_mux, i_time, p_input );
1607 }
1608 else if( p_stream->p_oggds_header )
1609 {
1610 /* number of sample from begining */
1611 op.granulepos = ( p_data->i_dts - p_sys->i_start_dts ) *
1612 p_stream->p_oggds_header->i_samples_per_unit / CLOCK_FREQ;
1613 }
1614 }
1615 else if( p_stream->i_cat == VIDEO_ES )
1616 {
1617 if( p_stream->i_fourcc == VLC_CODEC_THEORA )
1618 {
1619 p_stream->i_num_frames++;
1620 if( p_data->i_flags & BLOCK_FLAG_TYPE_I )
1621 {
1622 p_stream->i_num_keyframes++;
1623 p_stream->i_last_keyframe = p_stream->i_num_frames;
1624
1625 /* presentation time */
1626 i_time = CLOCK_FREQ * ( p_stream->i_num_frames - 1 ) *
1627 p_input->p_fmt->video.i_frame_rate_base / p_input->p_fmt->video.i_frame_rate;
1628 AddIndexEntry( p_mux, i_time, p_input );
1629 }
1630
1631 op.granulepos = (p_stream->i_last_keyframe << p_stream->i_keyframe_granule_shift )
1632 | (p_stream->i_num_frames-p_stream->i_last_keyframe);
1633 }
1634 else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
1635 {
1636
1637 #define FRAME_ROUND(a) \
1638 if ( ( a + 5000 / CLOCK_FREQ ) > ( a / CLOCK_FREQ ) )\
1639 a += 5000;\
1640 a /= CLOCK_FREQ;
1641
1642 mtime_t dt = (p_data->i_dts - p_sys->i_start_dts) * p_input->p_fmt->video.i_frame_rate / p_input->p_fmt->video.i_frame_rate_base;
1643 FRAME_ROUND( dt );
1644
1645 mtime_t pt = (p_data->i_pts - p_sys->i_start_dts - p_stream->i_baseptsdelay ) * p_input->p_fmt->video.i_frame_rate / p_input->p_fmt->video.i_frame_rate_base;
1646 FRAME_ROUND( pt );
1647
1648 /* (shro) some PTS could be repeated within 1st frames */
1649 if ( pt == p_stream->i_dirac_last_pt )
1650 pt++;
1651 else
1652 p_stream->i_dirac_last_pt = pt;
1653
1654 /* (shro) some DTS could be repeated within 1st frames */
1655 if ( dt == p_stream->i_dirac_last_dt )
1656 dt++;
1657 else
1658 p_stream->i_dirac_last_dt = dt;
1659
1660 if( p_data->i_flags & BLOCK_FLAG_TYPE_I )
1661 p_stream->i_last_keyframe = dt;
1662 mtime_t dist = dt - p_stream->i_last_keyframe;
1663
1664 /* Everything increments by two for progressive */
1665 if ( true )
1666 {
1667 pt *=2;
1668 dt *=2;
1669 }
1670
1671 mtime_t delay = pt - dt;
1672 if ( delay < 0 ) delay *= -1;
1673
1674 op.granulepos = (pt - delay) << 31 | (dist&0xff00) << 14
1675 | (delay&0x1fff) << 9 | (dist&0xff);
1676 #ifndef NDEBUG
1677 msg_Dbg( p_mux, "dts %"PRId64" pts %"PRId64" dt %"PRId64" pt %"PRId64" delay %"PRId64" granule %"PRId64,
1678 (p_data->i_dts - p_sys->i_start_dts),
1679 (p_data->i_pts - p_sys->i_start_dts ),
1680 dt, pt, delay, op.granulepos );
1681 #endif
1682
1683 AddIndexEntry( p_mux, dt, p_input );
1684 }
1685 else if( p_stream->i_fourcc == VLC_CODEC_VP8 )
1686 {
1687 p_stream->i_num_frames++;
1688 if( p_data->i_flags & BLOCK_FLAG_TYPE_I )
1689 {
1690 p_stream->i_num_keyframes++;
1691 p_stream->i_last_keyframe = p_stream->i_num_frames;
1692
1693 /* presentation time */
1694 i_time = CLOCK_FREQ * ( p_stream->i_num_frames - 1 ) *
1695 p_input->p_fmt->video.i_frame_rate_base / p_input->p_fmt->video.i_frame_rate;
1696 AddIndexEntry( p_mux, i_time, p_input );
1697 }
1698 op.granulepos = ( ((int64_t)p_stream->i_num_frames) << 32 ) |
1699 ( ( ( p_stream->i_num_frames - p_stream->i_last_keyframe ) & 0x07FFFFFF ) << 3 );
1700 }
1701 else if( p_stream->p_oggds_header )
1702 op.granulepos = ( p_data->i_dts - p_sys->i_start_dts ) * INT64_C(10) /
1703 p_stream->p_oggds_header->i_time_unit;
1704 }
1705 else if( p_stream->i_cat == SPU_ES )
1706 {
1707 /* granulepos is in millisec */
1708 op.granulepos = ( p_data->i_dts - p_sys->i_start_dts ) / 1000;
1709 }
1710 else
1711 return VLC_EGENERIC;
1712
1713 p_stream->u_last_granulepos = op.granulepos;
1714 ogg_stream_packetin( &p_stream->os, &op );
1715
1716 if( p_stream->i_cat == SPU_ES ||
1717 p_stream->i_fourcc == VLC_CODEC_SPEEX ||
1718 p_stream->i_fourcc == VLC_CODEC_DIRAC )
1719 {
1720 /* Subtitles or Speex packets are quite small so they
1721 * need to be flushed to be sent on time */
1722 /* The OggDirac mapping suggests ever so strongly that a
1723 * page flush occurs after each OggDirac packet, so to make
1724 * the timestamps unambiguous */
1725 p_og = OggStreamFlush( p_mux, &p_stream->os, p_data->i_dts );
1726 }
1727 else
1728 {
1729 p_og = OggStreamPageOut( p_mux, &p_stream->os, p_data->i_dts );
1730 }
1731
1732 if( p_og )
1733 {
1734 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
1735 p_stream->i_dts = -1;
1736 p_stream->i_length = 0;
1737 p_mux->p_sys->i_pos += sout_AccessOutWrite( p_mux->p_access, p_og );
1738 }
1739 else
1740 {
1741 if( p_stream->i_dts < 0 )
1742 {
1743 p_stream->i_dts = p_data->i_dts;
1744 }
1745 p_stream->i_length += p_data->i_length;
1746 }
1747
1748 block_Release( p_data );
1749 return VLC_SUCCESS;
1750 }