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Qt: do not show open options in both normal and advanced UI
[vlc.git] / modules / mux / ogg.c
blobb02c1edfc03c282a6c68dd6d3266d4d61ab6a0b1
1 /*****************************************************************************
2 * ogg.c: ogg muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001, 2002, 2006 the VideoLAN team
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
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 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 General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, 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 static int Open ( vlc_object_t * );
48 static void Close ( vlc_object_t * );
49
50 vlc_module_begin ()
51 set_description( N_("Ogg/OGM muxer") )
52 set_capability( "sout mux", 10 )
53 set_category( CAT_SOUT )
54 set_subcategory( SUBCAT_SOUT_MUX )
55 add_shortcut( "ogg", "ogm" )
56 set_callbacks( Open, Close )
57 vlc_module_end ()
58
59
60 /*****************************************************************************
61 * Exported prototypes
62 *****************************************************************************/
63 static int Control ( sout_mux_t *, int, va_list );
64 static int AddStream( sout_mux_t *, sout_input_t * );
65 static int DelStream( sout_mux_t *, sout_input_t * );
66 static int Mux ( sout_mux_t * );
67 static int MuxBlock ( sout_mux_t *, sout_input_t * );
68
69 static block_t *OggCreateHeader( sout_mux_t * );
70 static block_t *OggCreateFooter( sout_mux_t * );
71
72 /*****************************************************************************
73 * Misc declarations
74 *****************************************************************************/
75
76 /* Structures used for OggDS headers used in ogm files */
77
78 #define PACKET_TYPE_HEADER 0x01
79 #define PACKET_TYPE_COMMENT 0x03
80 #define PACKET_IS_SYNCPOINT 0x08
81
82 typedef struct
83 #ifdef HAVE_ATTRIBUTE_PACKED
84 __attribute__((__packed__))
85 #endif
86 {
87 int32_t i_width;
88 int32_t i_height;
89 } oggds_header_video_t;
90
91 typedef struct
92 #ifdef HAVE_ATTRIBUTE_PACKED
93 __attribute__((__packed__))
94 #endif
95 {
96 int16_t i_channels;
97 int16_t i_block_align;
98 int32_t i_avgbytespersec;
99 } oggds_header_audio_t;
100
101 typedef struct
102 #ifdef HAVE_ATTRIBUTE_PACKED
103 __attribute__((__packed__))
104 #endif
105 {
106 uint8_t i_packet_type;
107
108 char stream_type[8];
109 char sub_type[4];
110
111 int32_t i_size;
112
113 int64_t i_time_unit;
114 int64_t i_samples_per_unit;
115 int32_t i_default_len;
116
117 int32_t i_buffer_size;
118 int16_t i_bits_per_sample;
119
120 int16_t i_padding_0; /* Because the original is using MSVC packing style */
121
122 union
123 {
124 oggds_header_video_t video;
125 oggds_header_audio_t audio;
126 } header;
127
128 int32_t i_padding_1; /* Because the original is using MSVC packing style */
129
130 } oggds_header_t;
131
132 /*****************************************************************************
133 * Definitions of structures and functions used by this plugins
134 *****************************************************************************/
135 typedef struct
136 {
137 int i_cat;
138 int i_fourcc;
139
140 int b_new;
141
142 mtime_t i_dts;
143 mtime_t i_length;
144 int i_packet_no;
145 int i_serial_no;
146 int i_keyframe_granule_shift; /* Theora only */
147 int i_last_keyframe; /* dirac and theora */
148 int i_num_frames; /* Theora only */
149 uint64_t u_last_granulepos; /* Used for correct EOS page */
150 int64_t i_num_keyframes;
151 ogg_stream_state os;
152
153 oggds_header_t *p_oggds_header;
154
155 } ogg_stream_t;
156
157 struct sout_mux_sys_t
158 {
159 int i_streams;
160
161 mtime_t i_start_dts;
162 int i_next_serial_no;
163
164 /* number of logical streams pending to be added */
165 int i_add_streams;
166
167 /* logical streams pending to be deleted */
168 int i_del_streams;
169 ogg_stream_t **pp_del_streams;
170 };
171
172 static void OggSetDate( block_t *, mtime_t , mtime_t );
173 static block_t *OggStreamFlush( sout_mux_t *, ogg_stream_state *, mtime_t );
174
175 /*****************************************************************************
176 * Open: Open muxer
177 *****************************************************************************/
178 static int Open( vlc_object_t *p_this )
179 {
180 sout_mux_t *p_mux = (sout_mux_t*)p_this;
181 sout_mux_sys_t *p_sys;
182
183 msg_Info( p_mux, "Open" );
184
185 p_sys = malloc( sizeof( sout_mux_sys_t ) );
186 if( !p_sys )
187 return VLC_ENOMEM;
188 p_sys->i_streams = 0;
189 p_sys->i_add_streams = 0;
190 p_sys->i_del_streams = 0;
191 p_sys->pp_del_streams = 0;
192
193 p_mux->p_sys = p_sys;
194 p_mux->pf_control = Control;
195 p_mux->pf_addstream = AddStream;
196 p_mux->pf_delstream = DelStream;
197 p_mux->pf_mux = Mux;
198
199 /* First serial number is random.
200 * (Done like this because on win32 you need to seed the random number
201 * generator once per thread). */
202 uint32_t r;
203 vlc_rand_bytes(&r, sizeof(r));
204 p_sys->i_next_serial_no = r & INT_MAX;
205
206 return VLC_SUCCESS;
207 }
208
209 /*****************************************************************************
210 * Close: Finalize ogg bitstream and close muxer
211 *****************************************************************************/
212 static void Close( vlc_object_t * p_this )
213 {
214 sout_mux_t *p_mux = (sout_mux_t*)p_this;
215 sout_mux_sys_t *p_sys = p_mux->p_sys;
216
217 msg_Info( p_mux, "Close" );
218
219 if( p_sys->i_del_streams )
220 {
221 block_t *p_og = NULL;
222 mtime_t i_dts = p_sys->pp_del_streams[p_sys->i_del_streams - 1]->i_dts;
223
224 /* Close the current ogg stream */
225 msg_Dbg( p_mux, "writing footer" );
226 block_ChainAppend( &p_og, OggCreateFooter( p_mux ) );
227
228 /* Remove deleted logical streams */
229 for(int i = 0; i < p_sys->i_del_streams; i++ )
230 {
231 ogg_stream_clear( &p_sys->pp_del_streams[i]->os );
232 FREENULL( p_sys->pp_del_streams[i]->p_oggds_header );
233 FREENULL( p_sys->pp_del_streams[i] );
234 }
235 FREENULL( p_sys->pp_del_streams );
236 p_sys->i_streams -= p_sys->i_del_streams;
237
238 /* Write footer */
239 OggSetDate( p_og, i_dts, 0 );
240 sout_AccessOutWrite( p_mux->p_access, p_og );
241 }
242
243 free( p_sys );
244 }
245
246 /*****************************************************************************
247 * Control:
248 *****************************************************************************/
249 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
250 {
251 VLC_UNUSED(p_mux);
252 bool *pb_bool;
253 char **ppsz;
254
255 switch( i_query )
256 {
257 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
258 pb_bool = (bool*)va_arg( args, bool * );
259 *pb_bool = true;
260 return VLC_SUCCESS;
261
262 case MUX_GET_ADD_STREAM_WAIT:
263 pb_bool = (bool*)va_arg( args, bool * );
264 *pb_bool = true;
265 return VLC_SUCCESS;
266
267 case MUX_GET_MIME:
268 ppsz = (char**)va_arg( args, char ** );
269 *ppsz = strdup( "application/ogg" );
270 return VLC_SUCCESS;
271
272 default:
273 return VLC_EGENERIC;
274 }
275 }
276 /*****************************************************************************
277 * AddStream: Add an elementary stream to the muxed stream
278 *****************************************************************************/
279 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
280 {
281 sout_mux_sys_t *p_sys = p_mux->p_sys;
282 ogg_stream_t *p_stream;
283 uint16_t i_tag;
284
285 msg_Dbg( p_mux, "adding input" );
286
287 p_input->p_sys = p_stream = calloc( 1, sizeof( ogg_stream_t ) );
288 if( !p_stream )
289 return VLC_ENOMEM;
290
291 p_stream->i_cat = p_input->p_fmt->i_cat;
292 p_stream->i_fourcc = p_input->p_fmt->i_codec;
293 p_stream->i_serial_no = p_sys->i_next_serial_no++;
294 p_stream->i_packet_no = 0;
295 p_stream->i_last_keyframe = 0;
296 p_stream->i_num_keyframes = 0;
297 p_stream->i_num_frames = 0;
298
299 p_stream->p_oggds_header = 0;
300
301 switch( p_input->p_fmt->i_cat )
302 {
303 case VIDEO_ES:
304 if( !p_input->p_fmt->video.i_frame_rate ||
305 !p_input->p_fmt->video.i_frame_rate_base )
306 {
307 msg_Warn( p_mux, "Missing frame rate, assuming 25fps" );
308 p_input->p_fmt->video.i_frame_rate = 25;
309 p_input->p_fmt->video.i_frame_rate_base = 1;
310 }
311
312 switch( p_stream->i_fourcc )
313 {
314 case VLC_CODEC_MP4V:
315 case VLC_CODEC_MPGV:
316 case VLC_CODEC_DIV3:
317 case VLC_CODEC_MJPG:
318 case VLC_CODEC_WMV1:
319 case VLC_CODEC_WMV2:
320 case VLC_CODEC_WMV3:
321 case VLC_CODEC_SNOW:
322 p_stream->p_oggds_header = calloc( 1, sizeof(oggds_header_t) );
323 if( !p_stream->p_oggds_header )
324 {
325 free( p_stream );
326 return VLC_ENOMEM;
327 }
328 p_stream->p_oggds_header->i_packet_type = PACKET_TYPE_HEADER;
329
330 memcpy( p_stream->p_oggds_header->stream_type, "video", 5 );
331 if( p_stream->i_fourcc == VLC_CODEC_MP4V )
332 {
333 memcpy( p_stream->p_oggds_header->sub_type, "XVID", 4 );
334 }
335 else if( p_stream->i_fourcc == VLC_CODEC_DIV3 )
336 {
337 memcpy( p_stream->p_oggds_header->sub_type, "DIV3", 4 );
338 }
339 else
340 {
341 memcpy( p_stream->p_oggds_header->sub_type,
342 &p_stream->i_fourcc, 4 );
343 }
344 SetDWLE( &p_stream->p_oggds_header->i_size,
345 sizeof( oggds_header_t ) - 1 );
346 SetQWLE( &p_stream->p_oggds_header->i_time_unit,
347 INT64_C(10000000) * p_input->p_fmt->video.i_frame_rate_base /
348 (int64_t)p_input->p_fmt->video.i_frame_rate );
349 SetQWLE( &p_stream->p_oggds_header->i_samples_per_unit, 1 );
350 SetDWLE( &p_stream->p_oggds_header->i_default_len, 1 ); /* ??? */
351 SetDWLE( &p_stream->p_oggds_header->i_buffer_size, 1024*1024 );
352 SetWLE( &p_stream->p_oggds_header->i_bits_per_sample, 0 );
353 SetDWLE( &p_stream->p_oggds_header->header.video.i_width,
354 p_input->p_fmt->video.i_width );
355 SetDWLE( &p_stream->p_oggds_header->header.video.i_height,
356 p_input->p_fmt->video.i_height );
357 msg_Dbg( p_mux, "%4.4s stream", (char *)&p_stream->i_fourcc );
358 break;
359
360 case VLC_CODEC_DIRAC:
361 msg_Dbg( p_mux, "dirac stream" );
362 break;
363
364 case VLC_CODEC_THEORA:
365 msg_Dbg( p_mux, "theora stream" );
366 break;
367
368 default:
369 FREENULL( p_input->p_sys );
370 return VLC_EGENERIC;
371 }
372 break;
373
374 case AUDIO_ES:
375 switch( p_stream->i_fourcc )
376 {
377 case VLC_CODEC_VORBIS:
378 msg_Dbg( p_mux, "vorbis stream" );
379 break;
380
381 case VLC_CODEC_SPEEX:
382 msg_Dbg( p_mux, "speex stream" );
383 break;
384
385 case VLC_CODEC_FLAC:
386 msg_Dbg( p_mux, "flac stream" );
387 break;
388
389 default:
390 fourcc_to_wf_tag( p_stream->i_fourcc, &i_tag );
391 if( i_tag == WAVE_FORMAT_UNKNOWN )
392 {
393 FREENULL( p_input->p_sys );
394 return VLC_EGENERIC;
395 }
396
397 p_stream->p_oggds_header =
398 malloc( sizeof(oggds_header_t) + p_input->p_fmt->i_extra );
399 if( !p_stream->p_oggds_header )
400 {
401 free( p_stream );
402 return VLC_ENOMEM;
403 }
404 memset( p_stream->p_oggds_header, 0, sizeof(oggds_header_t) );
405 p_stream->p_oggds_header->i_packet_type = PACKET_TYPE_HEADER;
406
407 SetDWLE( &p_stream->p_oggds_header->i_size,
408 sizeof( oggds_header_t ) - 1 + p_input->p_fmt->i_extra );
409
410 if( p_input->p_fmt->i_extra )
411 {
412 memcpy( &p_stream->p_oggds_header[1],
413 p_input->p_fmt->p_extra, p_input->p_fmt->i_extra );
414 }
415
416 memcpy( p_stream->p_oggds_header->stream_type, "audio", 5 );
417
418 memset( p_stream->p_oggds_header->sub_type, 0, 4 );
419 char buf[5];
420 snprintf( buf, sizeof(buf), "%"PRIx16, i_tag );
421 strncpy( p_stream->p_oggds_header->sub_type, buf, 4 );
422
423 SetQWLE( &p_stream->p_oggds_header->i_time_unit, INT64_C(10000000) );
424 SetDWLE( &p_stream->p_oggds_header->i_default_len, 1 );
425 SetDWLE( &p_stream->p_oggds_header->i_buffer_size, 30*1024 );
426 SetQWLE( &p_stream->p_oggds_header->i_samples_per_unit,
427 p_input->p_fmt->audio.i_rate );
428 SetWLE( &p_stream->p_oggds_header->i_bits_per_sample,
429 p_input->p_fmt->audio.i_bitspersample );
430 SetDWLE( &p_stream->p_oggds_header->header.audio.i_channels,
431 p_input->p_fmt->audio.i_channels );
432 SetDWLE( &p_stream->p_oggds_header->header.audio.i_block_align,
433 p_input->p_fmt->audio.i_blockalign );
434 SetDWLE( &p_stream->p_oggds_header->header.audio.i_avgbytespersec,
435 p_input->p_fmt->i_bitrate / 8);
436 msg_Dbg( p_mux, "%4.4s stream", (char *)&p_stream->i_fourcc );
437 break;
438 }
439 break;
440
441 case SPU_ES:
442 switch( p_stream->i_fourcc )
443 {
444 case VLC_CODEC_SUBT:
445 p_stream->p_oggds_header = calloc( 1, sizeof(oggds_header_t) );
446 if( !p_stream->p_oggds_header )
447 {
448 free( p_stream );
449 return VLC_ENOMEM;
450 }
451 p_stream->p_oggds_header->i_packet_type = PACKET_TYPE_HEADER;
452
453 memcpy( p_stream->p_oggds_header->stream_type, "text", 4 );
454 msg_Dbg( p_mux, "subtitles stream" );
455 break;
456
457 default:
458 FREENULL( p_input->p_sys );
459 return VLC_EGENERIC;
460 }
461 break;
462 default:
463 FREENULL( p_input->p_sys );
464 return VLC_EGENERIC;
465 }
466
467 p_stream->b_new = true;
468
469 p_sys->i_add_streams++;
470
471 return VLC_SUCCESS;
472 }
473
474 /*****************************************************************************
475 * DelStream: Delete an elementary stream from the muxed stream
476 *****************************************************************************/
477 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
478 {
479 sout_mux_sys_t *p_sys = p_mux->p_sys;
480 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
481 block_t *p_og;
482
483 msg_Dbg( p_mux, "removing input" );
484
485 /* flush all remaining data */
486 if( p_input->p_sys )
487 {
488 if( !p_stream->b_new )
489 {
490 while( block_FifoCount( p_input->p_fifo ) )
491 MuxBlock( p_mux, p_input );
492 }
493
494 if( !p_stream->b_new &&
495 ( p_og = OggStreamFlush( p_mux, &p_stream->os, 0 ) ) )
496 {
497 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
498 sout_AccessOutWrite( p_mux->p_access, p_og );
499 }
500
501 /* move input in delete queue */
502 if( !p_stream->b_new )
503 {
504 p_sys->pp_del_streams = xrealloc( p_sys->pp_del_streams,
505 (p_sys->i_del_streams + 1) * sizeof(ogg_stream_t *) );
506 p_sys->pp_del_streams[p_sys->i_del_streams++] = p_stream;
507 }
508 else
509 {
510 /* wasn't already added so get rid of it */
511 FREENULL( p_stream->p_oggds_header );
512 FREENULL( p_stream );
513 p_sys->i_add_streams--;
514 }
515 }
516
517 p_input->p_sys = NULL;
518
519 return 0;
520 }
521
522 /*****************************************************************************
523 * Ogg bitstream manipulation routines
524 *****************************************************************************/
525 static block_t *OggStreamGetPage( sout_mux_t *p_mux,
526 ogg_stream_state *p_os, mtime_t i_pts,
527 bool flush )
528 {
529 (void)p_mux;
530 block_t *p_og, *p_og_first = NULL;
531 ogg_page og;
532 int (*pager)( ogg_stream_state*, ogg_page* ) = flush ? ogg_stream_flush : ogg_stream_pageout;
533
534 while( pager( p_os, &og ) )
535 {
536 /* Flush all data */
537 p_og = block_New( p_mux, og.header_len + og.body_len );
538
539 memcpy( p_og->p_buffer, og.header, og.header_len );
540 memcpy( p_og->p_buffer + og.header_len, og.body, og.body_len );
541 p_og->i_dts = 0;
542 p_og->i_pts = i_pts;
543 p_og->i_length = 0;
544
545 i_pts = 0; // write it only once
546
547 block_ChainAppend( &p_og_first, p_og );
548 }
549
550 return p_og_first;
551 }
552
553 static block_t *OggStreamFlush( sout_mux_t *p_mux,
554 ogg_stream_state *p_os, mtime_t i_pts )
555 {
556 return OggStreamGetPage( p_mux, p_os, i_pts, true );
557 }
558
559 static block_t *OggStreamPageOut( sout_mux_t *p_mux,
560 ogg_stream_state *p_os, mtime_t i_pts )
561 {
562 return OggStreamGetPage( p_mux, p_os, i_pts, false );
563 }
564
565 static block_t *OggCreateHeader( sout_mux_t *p_mux )
566 {
567 block_t *p_hdr = NULL;
568 block_t *p_og = NULL;
569 ogg_packet op;
570 int i;
571
572 /* Write header for each stream. All b_o_s (beginning of stream) packets
573 * must appear first in the ogg stream so we take care of them first. */
574 for( int pass = 0; pass < 2; pass++ )
575 {
576 for( i = 0; i < p_mux->i_nb_inputs; i++ )
577 {
578 sout_input_t *p_input = p_mux->pp_inputs[i];
579 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
580
581 bool video = ( p_stream->i_fourcc == VLC_CODEC_THEORA || p_stream->i_fourcc == VLC_CODEC_DIRAC );
582 if( ( ( pass == 0 && !video ) || ( pass == 1 && video ) ) )
583 continue;
584
585 msg_Dbg( p_mux, "creating header for %4.4s",
586 (char *)&p_stream->i_fourcc );
587
588 ogg_stream_init( &p_stream->os, p_stream->i_serial_no );
589 p_stream->b_new = false;
590 p_stream->i_packet_no = 0;
591
592 if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
593 p_stream->i_fourcc == VLC_CODEC_SPEEX ||
594 p_stream->i_fourcc == VLC_CODEC_THEORA )
595 {
596 /* First packet in order: vorbis/speex/theora info */
597 unsigned pi_size[XIPH_MAX_HEADER_COUNT];
598 void *pp_data[XIPH_MAX_HEADER_COUNT];
599 unsigned i_count;
600 if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
601 p_input->p_fmt->i_extra, p_input->p_fmt->p_extra ) )
602 {
603 i_count = 0;
604 pi_size[0] = 0;
605 pp_data[0] = NULL;
606 }
607
608 op.bytes = pi_size[0];
609 op.packet = pp_data[0];
610 if( pi_size[0] <= 0 )
611 msg_Err( p_mux, "header data corrupted");
612
613 op.b_o_s = 1;
614 op.e_o_s = 0;
615 op.granulepos = 0;
616 op.packetno = p_stream->i_packet_no++;
617 ogg_stream_packetin( &p_stream->os, &op );
618 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
619
620 /* Get keyframe_granule_shift for theora granulepos calculation */
621 if( p_stream->i_fourcc == VLC_CODEC_THEORA )
622 {
623 p_stream->i_keyframe_granule_shift =
624 ( (op.packet[40] & 0x03) << 3 ) | ( (op.packet[41] & 0xe0) >> 5 );
625 }
626
627 for( unsigned i = 0; i < i_count; i++ )
628 free( pp_data[i] );
629 }
630 else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
631 {
632 op.packet = p_input->p_fmt->p_extra;
633 op.bytes = p_input->p_fmt->i_extra;
634 op.b_o_s = 1;
635 op.e_o_s = 0;
636 op.granulepos = ~0;
637 op.packetno = p_stream->i_packet_no++;
638 ogg_stream_packetin( &p_stream->os, &op );
639 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
640 }
641 else if( p_stream->i_fourcc == VLC_CODEC_FLAC )
642 {
643 /* flac stream marker (yeah, only that in the 1st packet) */
644 op.packet = (unsigned char *)"fLaC";
645 op.bytes = 4;
646 op.b_o_s = 1;
647 op.e_o_s = 0;
648 op.granulepos = 0;
649 op.packetno = p_stream->i_packet_no++;
650 ogg_stream_packetin( &p_stream->os, &op );
651 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
652 }
653 else if( p_stream->p_oggds_header )
654 {
655 /* ds header */
656 op.packet = (uint8_t*)p_stream->p_oggds_header;
657 op.bytes = p_stream->p_oggds_header->i_size + 1;
658 op.b_o_s = 1;
659 op.e_o_s = 0;
660 op.granulepos = 0;
661 op.packetno = p_stream->i_packet_no++;
662 ogg_stream_packetin( &p_stream->os, &op );
663 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
664 }
665
666 block_ChainAppend( &p_hdr, p_og );
667 }
668 }
669
670 /* Take care of the non b_o_s headers */
671 for( i = 0; i < p_mux->i_nb_inputs; i++ )
672 {
673 sout_input_t *p_input = p_mux->pp_inputs[i];
674 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
675
676 if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
677 p_stream->i_fourcc == VLC_CODEC_SPEEX ||
678 p_stream->i_fourcc == VLC_CODEC_THEORA )
679 {
680 unsigned pi_size[XIPH_MAX_HEADER_COUNT];
681 void *pp_data[XIPH_MAX_HEADER_COUNT];
682 unsigned i_count;
683 if( xiph_SplitHeaders( pi_size, pp_data, &i_count,
684 p_input->p_fmt->i_extra, p_input->p_fmt->p_extra ) )
685 i_count = 0;
686
687 /* Special case, headers are already there in the incoming stream.
688 * We need to gather them an mark them as headers. */
689 for( unsigned i = 1; i < i_count; i++ )
690 {
691 op.bytes = pi_size[i];
692 op.packet = pp_data[i];
693 if( pi_size[i] <= 0 )
694 msg_Err( p_mux, "header data corrupted");
695
696 op.b_o_s = 0;
697 op.e_o_s = 0;
698 op.granulepos = 0;
699 op.packetno = p_stream->i_packet_no++;
700 ogg_stream_packetin( &p_stream->os, &op );
701
702 if( i == i_count - 1 )
703 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
704 else
705 p_og = OggStreamPageOut( p_mux, &p_stream->os, 0 );
706 if( p_og )
707 block_ChainAppend( &p_hdr, p_og );
708 }
709 for( unsigned i = 0; i < i_count; i++ )
710 free( pp_data[i] );
711 }
712 else if( p_stream->i_fourcc != VLC_CODEC_FLAC &&
713 p_stream->i_fourcc != VLC_CODEC_DIRAC )
714 {
715 uint8_t com[128];
716 int i_com;
717
718 /* comment */
719 com[0] = PACKET_TYPE_COMMENT;
720 i_com = snprintf( (char *)(com+1), 127,
721 PACKAGE_VERSION" stream output" )
722 + 1;
723 op.packet = com;
724 op.bytes = i_com;
725 op.b_o_s = 0;
726 op.e_o_s = 0;
727 op.granulepos = 0;
728 op.packetno = p_stream->i_packet_no++;
729 ogg_stream_packetin( &p_stream->os, &op );
730 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
731 block_ChainAppend( &p_hdr, p_og );
732 }
733
734 /* Special case for mp4v and flac */
735 if( ( p_stream->i_fourcc == VLC_CODEC_MP4V ||
736 p_stream->i_fourcc == VLC_CODEC_FLAC ) &&
737 p_input->p_fmt->i_extra )
738 {
739 /* Send a packet with the VOL data for mp4v
740 * or STREAMINFO for flac */
741 msg_Dbg( p_mux, "writing extra data" );
742 op.bytes = p_input->p_fmt->i_extra;
743 op.packet = p_input->p_fmt->p_extra;
744 if( p_stream->i_fourcc == VLC_CODEC_FLAC )
745 {
746 /* Skip the flac stream marker */
747 op.bytes -= 4;
748 op.packet+= 4;
749 }
750 op.b_o_s = 0;
751 op.e_o_s = 0;
752 op.granulepos = 0;
753 op.packetno = p_stream->i_packet_no++;
754 ogg_stream_packetin( &p_stream->os, &op );
755 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
756 block_ChainAppend( &p_hdr, p_og );
757 }
758 }
759
760 /* set HEADER flag */
761 for( p_og = p_hdr; p_og != NULL; p_og = p_og->p_next )
762 {
763 p_og->i_flags |= BLOCK_FLAG_HEADER;
764 }
765 return p_hdr;
766 }
767
768 static block_t *OggCreateFooter( sout_mux_t *p_mux )
769 {
770 sout_mux_sys_t *p_sys = p_mux->p_sys;
771 block_t *p_hdr = NULL;
772 block_t *p_og;
773 ogg_packet op;
774 int i;
775
776 /* flush all remaining data */
777 for( i = 0; i < p_mux->i_nb_inputs; i++ )
778 {
779 ogg_stream_t *p_stream = p_mux->pp_inputs[i]->p_sys;
780
781 /* skip newly added streams */
782 if( p_stream->b_new ) continue;
783
784 if( ( p_og = OggStreamFlush( p_mux, &p_stream->os, 0 ) ) )
785 {
786 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
787 sout_AccessOutWrite( p_mux->p_access, p_og );
788 }
789 }
790
791 /* Write eos packets for each stream. */
792 for( i = 0; i < p_mux->i_nb_inputs; i++ )
793 {
794 ogg_stream_t *p_stream = p_mux->pp_inputs[i]->p_sys;
795
796 /* skip newly added streams */
797 if( p_stream->b_new ) continue;
798
799 op.packet = NULL;
800 op.bytes = 0;
801 op.b_o_s = 0;
802 op.e_o_s = 1;
803 op.granulepos = p_stream->u_last_granulepos;
804 op.packetno = p_stream->i_packet_no++;
805 ogg_stream_packetin( &p_stream->os, &op );
806
807 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
808 block_ChainAppend( &p_hdr, p_og );
809 ogg_stream_clear( &p_stream->os );
810 }
811
812 for( i = 0; i < p_sys->i_del_streams; i++ )
813 {
814 op.packet = NULL;
815 op.bytes = 0;
816 op.b_o_s = 0;
817 op.e_o_s = 1;
818 op.granulepos = p_sys->pp_del_streams[i]->u_last_granulepos;
819 op.packetno = p_sys->pp_del_streams[i]->i_packet_no++;
820 ogg_stream_packetin( &p_sys->pp_del_streams[i]->os, &op );
821
822 p_og = OggStreamFlush( p_mux, &p_sys->pp_del_streams[i]->os, 0 );
823 block_ChainAppend( &p_hdr, p_og );
824 ogg_stream_clear( &p_sys->pp_del_streams[i]->os );
825 }
826
827 return p_hdr;
828 }
829
830 static void OggSetDate( block_t *p_og, mtime_t i_dts, mtime_t i_length )
831 {
832 int i_count;
833 block_t *p_tmp;
834 mtime_t i_delta;
835
836 for( p_tmp = p_og, i_count = 0; p_tmp != NULL; p_tmp = p_tmp->p_next )
837 {
838 i_count++;
839 }
840
841 if( i_count == 0 ) return; /* ignore. */
842
843 i_delta = i_length / i_count;
844
845 for( p_tmp = p_og; p_tmp != NULL; p_tmp = p_tmp->p_next )
846 {
847 p_tmp->i_dts = i_dts;
848 p_tmp->i_length = i_delta;
849
850 i_dts += i_delta;
851 }
852 }
853
854 /*****************************************************************************
855 * Mux: multiplex available data in input fifos into the Ogg bitstream
856 *****************************************************************************/
857 static int Mux( sout_mux_t *p_mux )
858 {
859 sout_mux_sys_t *p_sys = p_mux->p_sys;
860 block_t *p_og = NULL;
861 mtime_t i_dts;
862
863 if( p_sys->i_add_streams || p_sys->i_del_streams )
864 {
865 /* Open new ogg stream */
866 if( sout_MuxGetStream( p_mux, 1, &i_dts) < 0 )
867 {
868 msg_Dbg( p_mux, "waiting for data..." );
869 return VLC_SUCCESS;
870 }
871
872 if( p_sys->i_streams )
873 {
874 /* Close current ogg stream */
875 int i;
876
877 msg_Dbg( p_mux, "writing footer" );
878 block_ChainAppend( &p_og, OggCreateFooter( p_mux ) );
879
880 /* Remove deleted logical streams */
881 for( i = 0; i < p_sys->i_del_streams; i++ )
882 {
883 FREENULL( p_sys->pp_del_streams[i]->p_oggds_header );
884 FREENULL( p_sys->pp_del_streams[i] );
885 }
886 FREENULL( p_sys->pp_del_streams );
887 p_sys->i_streams = 0;
888 }
889
890 msg_Dbg( p_mux, "writing header" );
891 p_sys->i_start_dts = i_dts;
892 p_sys->i_streams = p_mux->i_nb_inputs;
893 p_sys->i_del_streams = 0;
894 p_sys->i_add_streams = 0;
895 block_ChainAppend( &p_og, OggCreateHeader( p_mux ) );
896
897 /* Write header and/or footer */
898 OggSetDate( p_og, i_dts, 0 );
899 sout_AccessOutWrite( p_mux->p_access, p_og );
900 p_og = NULL;
901 }
902
903 for( ;; )
904 {
905 int i_stream = sout_MuxGetStream( p_mux, 1, NULL );
906 if( i_stream < 0 )
907 return VLC_SUCCESS;
908 MuxBlock( p_mux, p_mux->pp_inputs[i_stream] );
909 }
910
911 return VLC_SUCCESS;
912 }
913
914 static int MuxBlock( sout_mux_t *p_mux, sout_input_t *p_input )
915 {
916 sout_mux_sys_t *p_sys = p_mux->p_sys;
917 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
918 block_t *p_data = block_FifoGet( p_input->p_fifo );
919 block_t *p_og = NULL;
920 ogg_packet op;
921
922 if( p_stream->i_fourcc != VLC_CODEC_VORBIS &&
923 p_stream->i_fourcc != VLC_CODEC_FLAC &&
924 p_stream->i_fourcc != VLC_CODEC_SPEEX &&
925 p_stream->i_fourcc != VLC_CODEC_THEORA &&
926 p_stream->i_fourcc != VLC_CODEC_DIRAC )
927 {
928 p_data = block_Realloc( p_data, 1, p_data->i_buffer );
929 p_data->p_buffer[0] = PACKET_IS_SYNCPOINT; // FIXME
930 }
931
932 op.packet = p_data->p_buffer;
933 op.bytes = p_data->i_buffer;
934 op.b_o_s = 0;
935 op.e_o_s = 0;
936 op.packetno = p_stream->i_packet_no++;
937
938 if( p_stream->i_cat == AUDIO_ES )
939 {
940 if( p_stream->i_fourcc == VLC_CODEC_VORBIS ||
941 p_stream->i_fourcc == VLC_CODEC_FLAC ||
942 p_stream->i_fourcc == VLC_CODEC_SPEEX )
943 {
944 /* number of sample from begining + current packet */
945 op.granulepos =
946 ( p_data->i_dts - p_sys->i_start_dts + p_data->i_length ) *
947 (mtime_t)p_input->p_fmt->audio.i_rate / INT64_C(1000000);
948 }
949 else if( p_stream->p_oggds_header )
950 {
951 /* number of sample from begining */
952 op.granulepos = ( p_data->i_dts - p_sys->i_start_dts ) *
953 p_stream->p_oggds_header->i_samples_per_unit / INT64_C(1000000);
954 }
955 }
956 else if( p_stream->i_cat == VIDEO_ES )
957 {
958 if( p_stream->i_fourcc == VLC_CODEC_THEORA )
959 {
960 p_stream->i_num_frames++;
961 if( p_data->i_flags & BLOCK_FLAG_TYPE_I )
962 {
963 p_stream->i_num_keyframes++;
964 p_stream->i_last_keyframe = p_stream->i_num_frames;
965 }
966
967 op.granulepos = (p_stream->i_last_keyframe << p_stream->i_keyframe_granule_shift )
968 | (p_stream->i_num_frames-p_stream->i_last_keyframe);
969 }
970 else if( p_stream->i_fourcc == VLC_CODEC_DIRAC )
971 {
972 mtime_t dt = (p_data->i_dts - p_sys->i_start_dts + 1)
973 * p_input->p_fmt->video.i_frame_rate *2
974 / p_input->p_fmt->video.i_frame_rate_base
975 / INT64_C(1000000);
976 mtime_t delay = (p_data->i_pts - p_data->i_dts + 1)
977 * p_input->p_fmt->video.i_frame_rate *2
978 / p_input->p_fmt->video.i_frame_rate_base
979 / INT64_C(1000000);
980 if( p_data->i_flags & BLOCK_FLAG_TYPE_I )
981 p_stream->i_last_keyframe = dt;
982 mtime_t dist = dt - p_stream->i_last_keyframe;
983 op.granulepos = dt << 31 | (dist&0xff00) << 14
984 | (delay&0x1fff) << 9 | (dist&0xff);
985 }
986 else if( p_stream->p_oggds_header )
987 op.granulepos = ( p_data->i_dts - p_sys->i_start_dts ) * INT64_C(10) /
988 p_stream->p_oggds_header->i_time_unit;
989 }
990 else if( p_stream->i_cat == SPU_ES )
991 {
992 /* granulepos is in millisec */
993 op.granulepos = ( p_data->i_dts - p_sys->i_start_dts ) / 1000;
994 }
995 else
996 return VLC_EGENERIC;
997
998 p_stream->u_last_granulepos = op.granulepos;
999 ogg_stream_packetin( &p_stream->os, &op );
1000
1001 if( p_stream->i_cat == SPU_ES ||
1002 p_stream->i_fourcc == VLC_CODEC_SPEEX ||
1003 p_stream->i_fourcc == VLC_CODEC_DIRAC )
1004 {
1005 /* Subtitles or Speex packets are quite small so they
1006 * need to be flushed to be sent on time */
1007 /* The OggDirac mapping suggests ever so strongly that a
1008 * page flush occurs after each OggDirac packet, so to make
1009 * the timestamps unambiguous */
1010 p_og = OggStreamFlush( p_mux, &p_stream->os, p_data->i_dts );
1011 }
1012 else
1013 {
1014 p_og = OggStreamPageOut( p_mux, &p_stream->os, p_data->i_dts );
1015 }
1016
1017 if( p_og )
1018 {
1019 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
1020 p_stream->i_dts = -1;
1021 p_stream->i_length = 0;
1022
1023 sout_AccessOutWrite( p_mux->p_access, p_og );
1024 }
1025 else
1026 {
1027 if( p_stream->i_dts < 0 )
1028 {
1029 p_stream->i_dts = p_data->i_dts;
1030 }
1031 p_stream->i_length += p_data->i_length;
1032 }
1033
1034 block_Release( p_data );
1035 return VLC_SUCCESS;
1036 }
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