1 /*****************************************************************************
2 * ogg.c: ogg muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@netcourrier.com>
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.
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.
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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
36 #include <vlc/input.h>
43 /*****************************************************************************
45 *****************************************************************************/
46 static int Open ( vlc_object_t * );
47 static void Close ( vlc_object_t * );
50 set_description( _("Ogg/ogm muxer") );
51 set_capability( "sout mux", 10 );
52 add_shortcut( "ogg" );
53 add_shortcut( "ogm" );
54 set_callbacks( Open, Close );
58 /*****************************************************************************
60 *****************************************************************************/
61 static int Capability(sout_mux_t *, int, void *, void * );
62 static int AddStream( sout_mux_t *, sout_input_t * );
63 static int DelStream( sout_mux_t *, sout_input_t * );
64 static int Mux ( sout_mux_t * );
66 static block_t *OggCreateHeader( sout_mux_t *, mtime_t );
67 static block_t *OggCreateFooter( sout_mux_t *, mtime_t );
69 /*****************************************************************************
71 *****************************************************************************/
72 #define FREE( p ) if( p ) { free( p ); (p) = NULL; }
74 /* Structures used for OggDS headers used in ogm files */
76 #define PACKET_TYPE_HEADER 0x01
77 #define PACKET_TYPE_COMMENT 0x03
78 #define PACKET_IS_SYNCPOINT 0x08
81 #ifdef HAVE_ATTRIBUTE_PACKED
82 __attribute__((__packed__))
87 } oggds_header_video_t;
90 #ifdef HAVE_ATTRIBUTE_PACKED
91 __attribute__((__packed__))
95 int16_t i_block_align;
96 int32_t i_avgbytespersec;
97 } oggds_header_audio_t;
100 #ifdef HAVE_ATTRIBUTE_PACKED
101 __attribute__((__packed__))
104 uint8_t i_packet_type;
112 int64_t i_samples_per_unit;
113 int32_t i_default_len;
115 int32_t i_buffer_size;
116 int16_t i_bits_per_sample;
118 int16_t i_padding_0; /* Because the original is using MSVC packing style */
122 oggds_header_video_t video;
123 oggds_header_audio_t audio;
126 int32_t i_padding_1; /* Because the original is using MSVC packing style */
131 * TODO move this function to src/stream_output.c (used by nearly all muxers)
133 static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
139 for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
141 block_fifo_t *p_fifo;
143 p_fifo = p_mux->pp_inputs[i]->p_fifo;
145 /* We don't really need to have anything in the SPU fifo */
146 if( p_mux->pp_inputs[i]->p_fmt->i_cat == SPU_ES &&
147 p_fifo->i_depth == 0 ) continue;
149 if( p_fifo->i_depth > 2 ||
150 /* Special case for SPUs */
151 ( p_mux->pp_inputs[i]->p_fmt->i_cat == SPU_ES &&
152 p_fifo->i_depth > 0 ) )
156 p_buf = block_FifoShow( p_fifo );
157 if( i_stream < 0 || p_buf->i_dts < i_dts )
159 i_dts = p_buf->i_dts;
165 // wait that all fifo have at least 3 packets (3 vorbis headers)
171 *pi_stream = i_stream;
180 /*****************************************************************************
181 * Definitions of structures and functions used by this plugins
182 *****************************************************************************/
194 int i_keyframe_granule_shift; /* Theora only */
197 oggds_header_t oggds_header;
199 block_t *pp_sout_headers[3];
204 struct sout_mux_sys_t
209 int i_next_serial_no;
211 /* number of logical streams pending to be added */
214 /* logical streams pending to be deleted */
216 ogg_stream_t **pp_del_streams;
219 static void OggSetDate( block_t *, mtime_t , mtime_t );
220 static block_t *OggStreamFlush( sout_mux_t *, ogg_stream_state *, mtime_t );
222 /*****************************************************************************
224 *****************************************************************************/
225 static int Open( vlc_object_t *p_this )
227 sout_mux_t *p_mux = (sout_mux_t*)p_this;
228 sout_mux_sys_t *p_sys;
230 msg_Info( p_mux, "Open" );
232 p_sys = malloc( sizeof( sout_mux_sys_t ) );
233 p_sys->i_streams = 0;
234 p_sys->i_add_streams = 0;
235 p_sys->i_del_streams = 0;
236 p_sys->pp_del_streams = 0;
238 p_mux->p_sys = p_sys;
239 p_mux->pf_capacity = Capability;
240 p_mux->pf_addstream = AddStream;
241 p_mux->pf_delstream = DelStream;
244 /* First serial number is random.
245 * (Done like this because on win32 you need to seed the random number
246 * generator once per thread). */
247 srand( (unsigned int)time( NULL ) );
248 p_sys->i_next_serial_no = rand();
253 /*****************************************************************************
254 * Close: Finalize ogg bitstream and close muxer
255 *****************************************************************************/
256 static void Close( vlc_object_t * p_this )
258 sout_mux_t *p_mux = (sout_mux_t*)p_this;
259 sout_mux_sys_t *p_sys = p_mux->p_sys;
261 msg_Info( p_mux, "Close" );
263 if( p_sys->i_del_streams )
265 block_t *p_og = NULL;
269 /* Close the current ogg stream */
270 msg_Dbg( p_mux, "writing footer" );
271 block_ChainAppend( &p_og, OggCreateFooter( p_mux, 0 ) );
273 /* Remove deleted logical streams */
274 for( i = 0; i < p_sys->i_del_streams; i++ )
276 i_dts = p_sys->pp_del_streams[i]->i_dts;
277 ogg_stream_clear( &p_sys->pp_del_streams[i]->os );
278 FREE( p_sys->pp_del_streams[i] );
280 FREE( p_sys->pp_del_streams );
281 p_sys->i_streams -= p_sys->i_del_streams;
284 OggSetDate( p_og, i_dts, 0 );
285 sout_AccessOutWrite( p_mux->p_access, p_og );
291 static int Capability( sout_mux_t *p_mux, int i_query, void *p_args,
296 case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
297 *(vlc_bool_t*)p_answer = VLC_TRUE;
298 return( SOUT_MUX_CAP_ERR_OK );
299 case SOUT_MUX_CAP_GET_ADD_STREAM_WAIT:
300 *(vlc_bool_t*)p_answer = VLC_TRUE;
301 return( SOUT_MUX_CAP_ERR_OK );
303 return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
307 /*****************************************************************************
308 * AddStream: Add an elementary stream to the muxed stream
309 *****************************************************************************/
310 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
312 sout_mux_sys_t *p_sys = p_mux->p_sys;
313 ogg_stream_t *p_stream;
315 msg_Dbg( p_mux, "adding input" );
317 p_input->p_sys = p_stream = malloc( sizeof( ogg_stream_t ) );
319 p_stream->i_cat = p_input->p_fmt->i_cat;
320 p_stream->i_fourcc = p_input->p_fmt->i_codec;
321 p_stream->i_serial_no = p_sys->i_next_serial_no++;
322 p_stream->i_packet_no = 0;
324 p_stream->i_sout_headers = 0;
326 memset( &p_stream->oggds_header, 0, sizeof(p_stream->oggds_header) );
327 p_stream->oggds_header.i_packet_type = PACKET_TYPE_HEADER;
328 switch( p_input->p_fmt->i_cat )
331 switch( p_stream->i_fourcc )
333 case VLC_FOURCC( 'm', 'p', 'g', 'v' ):
334 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
335 case VLC_FOURCC( 'D', 'I', 'V', '3' ):
336 case VLC_FOURCC( 'M', 'J', 'P', 'G' ):
337 case VLC_FOURCC( 'W', 'M', 'V', '1' ):
338 case VLC_FOURCC( 'W', 'M', 'V', '2' ):
339 memcpy( p_stream->oggds_header.stream_type, "video", 5 );
340 if( p_stream->i_fourcc == VLC_FOURCC( 'm', 'p', '4', 'v' ) )
342 memcpy( p_stream->oggds_header.sub_type, "XVID", 4 );
344 else if( p_stream->i_fourcc == VLC_FOURCC( 'D', 'I', 'V', '3' ) )
346 memcpy( p_stream->oggds_header.sub_type, "DIV3", 4 );
350 memcpy(p_stream->oggds_header.sub_type,&p_stream->i_fourcc,4);
352 SetDWLE( &p_stream->oggds_header.i_size,
353 sizeof( oggds_header_t ) - 1);
354 SetQWLE( &p_stream->oggds_header.i_time_unit,
355 I64C(10000000)/(int64_t)25 ); // FIXME (25fps)
356 SetQWLE( &p_stream->oggds_header.i_samples_per_unit, 1 );
357 SetDWLE( &p_stream->oggds_header.i_default_len, 1 ); /* ??? */
358 SetDWLE( &p_stream->oggds_header.i_buffer_size, 1024*1024 );
359 SetWLE( &p_stream->oggds_header.i_bits_per_sample, 0 );
360 SetDWLE( &p_stream->oggds_header.header.video.i_width,
361 p_input->p_fmt->video.i_width );
362 SetDWLE( &p_stream->oggds_header.header.video.i_height,
363 p_input->p_fmt->video.i_height );
364 msg_Dbg( p_mux, "%4.4s stream", (char *)&p_stream->i_fourcc );
367 case VLC_FOURCC( 't', 'h', 'e', 'o' ):
368 msg_Dbg( p_mux, "theora stream" );
372 FREE( p_input->p_sys );
378 switch( p_stream->i_fourcc )
380 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
381 case VLC_FOURCC( 'a', '5', '2', ' ' ):
382 memcpy( p_stream->oggds_header.stream_type, "audio", 5 );
383 if( p_stream->i_fourcc == VLC_FOURCC( 'm', 'p', 'g', 'a' ) )
385 memcpy( p_stream->oggds_header.sub_type, "55 ", 4 );
387 else if( p_stream->i_fourcc == VLC_FOURCC( 'a', '5', '2', ' ' ) )
389 memcpy( p_stream->oggds_header.sub_type, "2000", 4 );
391 SetDWLE( &p_stream->oggds_header.i_size,
392 sizeof( oggds_header_t ) - 1);
393 SetQWLE( &p_stream->oggds_header.i_time_unit, 0 /* not used */ );
394 SetDWLE( &p_stream->oggds_header.i_default_len, 1 );
395 SetDWLE( &p_stream->oggds_header.i_buffer_size, 30*1024 );
396 SetQWLE( &p_stream->oggds_header.i_samples_per_unit,
397 p_input->p_fmt->audio.i_rate );
398 SetWLE( &p_stream->oggds_header.i_bits_per_sample, 0 );
399 SetDWLE( &p_stream->oggds_header.header.audio.i_channels,
400 p_input->p_fmt->audio.i_channels );
401 SetDWLE( &p_stream->oggds_header.header.audio.i_block_align,
402 p_input->p_fmt->audio.i_blockalign );
403 SetDWLE( &p_stream->oggds_header.header.audio.i_avgbytespersec, 0);
404 msg_Dbg( p_mux, "mpga/a52 stream" );
407 case VLC_FOURCC( 'v', 'o', 'r', 'b' ):
408 msg_Dbg( p_mux, "vorbis stream" );
411 case VLC_FOURCC( 's', 'p', 'x', ' ' ):
412 msg_Dbg( p_mux, "speex stream" );
415 case VLC_FOURCC( 'f', 'l', 'a', 'c' ):
416 msg_Dbg( p_mux, "flac stream" );
420 FREE( p_input->p_sys );
426 switch( p_stream->i_fourcc )
428 case VLC_FOURCC( 's', 'u','b', 't' ):
429 memcpy( p_stream->oggds_header.stream_type, "text", 4 );
430 msg_Dbg( p_mux, "subtitles stream" );
434 FREE( p_input->p_sys );
439 FREE( p_input->p_sys );
443 p_stream->b_new = VLC_TRUE;
445 p_sys->i_add_streams++;
450 /*****************************************************************************
451 * DelStream: Delete an elementary stream from the muxed stream
452 *****************************************************************************/
453 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
455 sout_mux_sys_t *p_sys = p_mux->p_sys;
456 ogg_stream_t *p_stream = (ogg_stream_t*)p_input->p_sys;
459 msg_Dbg( p_mux, "removing input" );
461 /* flush all remaining data */
466 if( !p_stream->b_new &&
467 ( p_og = OggStreamFlush( p_mux, &p_stream->os, 0 ) ) )
469 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
470 sout_AccessOutWrite( p_mux->p_access, p_og );
473 for( i = 0; i < p_stream->i_sout_headers; i++ )
475 block_Release( p_stream->pp_sout_headers[i] );
476 p_stream->i_sout_headers = 0;
479 /* move input in delete queue */
480 if( !p_stream->b_new )
482 p_sys->pp_del_streams = realloc( p_sys->pp_del_streams,
483 (p_sys->i_del_streams + 1) *
484 sizeof(ogg_stream_t *) );
485 p_sys->pp_del_streams[p_sys->i_del_streams++] = p_stream;
489 /* Wasn't already added so get rid of it */
491 p_sys->i_add_streams--;
495 p_input->p_sys = NULL;
500 /*****************************************************************************
501 * Ogg bitstream manipulation routines
502 *****************************************************************************/
503 static block_t *OggStreamFlush( sout_mux_t *p_mux,
504 ogg_stream_state *p_os, mtime_t i_pts )
506 block_t *p_og, *p_og_first = NULL;
509 while( ogg_stream_flush( p_os, &og ) )
512 p_og = block_New( p_mux, og.header_len + og.body_len );
514 memcpy( p_og->p_buffer, og.header, og.header_len );
515 memcpy( p_og->p_buffer + og.header_len, og.body, og.body_len );
520 i_pts = 0; // write it only once
522 block_ChainAppend( &p_og_first, p_og );
528 static block_t *OggStreamPageOut( sout_mux_t *p_mux,
529 ogg_stream_state *p_os, mtime_t i_pts )
531 block_t *p_og, *p_og_first = NULL;
534 while( ogg_stream_pageout( p_os, &og ) )
537 p_og = block_New( p_mux, og.header_len + og.body_len );
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 );
545 i_pts = 0; // write them only once
547 block_ChainAppend( &p_og_first, p_og );
553 static block_t *OggCreateHeader( sout_mux_t *p_mux, mtime_t i_dts )
555 block_t *p_hdr = NULL;
560 /* Write header for each stream. All b_o_s (beginning of stream) packets
561 * must appear first in the ogg stream so we take care of them first. */
562 for( i = 0; i < p_mux->i_nb_inputs; i++ )
564 ogg_stream_t *p_stream = (ogg_stream_t*)p_mux->pp_inputs[i]->p_sys;
565 p_stream->b_new = VLC_FALSE;
567 msg_Dbg( p_mux, "creating header for %4.4s",
568 (char *)&p_stream->i_fourcc );
570 ogg_stream_init( &p_stream->os, p_stream->i_serial_no );
571 p_stream->i_packet_no = 0;
573 if( p_stream->i_fourcc == VLC_FOURCC( 'v', 'o', 'r', 'b' ) ||
574 p_stream->i_fourcc == VLC_FOURCC( 's', 'p', 'x', ' ' ) ||
575 p_stream->i_fourcc == VLC_FOURCC( 't', 'h', 'e', 'o' ) )
577 /* Special case, headers are already there in the
578 * incoming stream or we backed them up earlier */
580 /* first packet in order: vorbis/speex/theora info */
581 if( !p_stream->i_sout_headers )
583 p_og = block_FifoGet( p_mux->pp_inputs[i]->p_fifo );
584 op.packet = p_og->p_buffer;
585 op.bytes = p_og->i_buffer;
589 op.packetno = p_stream->i_packet_no++;
590 ogg_stream_packetin( &p_stream->os, &op );
591 p_stream->pp_sout_headers[0] =
592 OggStreamFlush( p_mux, &p_stream->os, 0 );
593 p_stream->i_sout_headers++;
595 p_og = block_Duplicate( p_stream->pp_sout_headers[0] );
597 /* Get keyframe_granule_shift for theora granulepos calculation */
598 if( p_stream->i_fourcc == VLC_FOURCC( 't', 'h', 'e', 'o' ) )
600 int i_keyframe_frequency_force = 1 << (op.packet[36] >> 3);
602 /* granule_shift = i_log( frequency_force -1 ) */
603 p_stream->i_keyframe_granule_shift = 0;
604 i_keyframe_frequency_force--;
605 while( i_keyframe_frequency_force )
607 p_stream->i_keyframe_granule_shift++;
608 i_keyframe_frequency_force >>= 1;
612 else if( p_stream->i_fourcc == VLC_FOURCC( 'f', 'l', 'a', 'c' ) )
614 /* flac stream marker (yeah, only that in the 1st packet) */
620 op.packetno = p_stream->i_packet_no++;
621 ogg_stream_packetin( &p_stream->os, &op );
622 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
627 op.packet = (uint8_t*)&p_stream->oggds_header;
628 op.bytes = sizeof( oggds_header_t );
632 op.packetno = p_stream->i_packet_no++;
633 ogg_stream_packetin( &p_stream->os, &op );
634 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
637 block_ChainAppend( &p_hdr, p_og );
640 /* Take care of the non b_o_s headers */
641 for( i = 0; i < p_mux->i_nb_inputs; i++ )
643 ogg_stream_t *p_stream = (ogg_stream_t*)p_mux->pp_inputs[i]->p_sys;
645 if( p_stream->i_fourcc == VLC_FOURCC( 'v', 'o', 'r', 'b' ) ||
646 p_stream->i_fourcc == VLC_FOURCC( 's', 'p', 'x', ' ' ) ||
647 p_stream->i_fourcc == VLC_FOURCC( 't', 'h', 'e', 'o' ) )
649 /* Special case, headers are already there in the incoming stream.
650 * We need to gather them an mark them as headers. */
652 for( j = 0; j < 2; j++ )
654 if( p_stream->i_sout_headers < j + 2 )
656 /* next packets in order: comments and codebooks */
657 p_og = block_FifoGet( p_mux->pp_inputs[i]->p_fifo );
658 op.packet = p_og->p_buffer;
659 op.bytes = p_og->i_buffer;
663 op.packetno = p_stream->i_packet_no++;
664 ogg_stream_packetin( &p_stream->os, &op );
665 p_stream->pp_sout_headers[j+1] =
666 OggStreamFlush( p_mux, &p_stream->os, 0 );
667 p_stream->i_sout_headers++;
670 p_og = block_Duplicate( p_stream->pp_sout_headers[j+1] );
671 block_ChainAppend( &p_hdr, p_og );
674 else if( p_stream->i_fourcc != VLC_FOURCC( 'f', 'l', 'a', 'c' ) )
680 com[0] = PACKET_TYPE_COMMENT;
681 i_com = snprintf( &com[1], 128, VERSION" stream output" ) + 1;
687 op.packetno = p_stream->i_packet_no++;
688 ogg_stream_packetin( &p_stream->os, &op );
689 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
690 block_ChainAppend( &p_hdr, p_og );
693 /* Special case for mp4v and flac */
694 if( ( p_stream->i_fourcc == VLC_FOURCC( 'm', 'p', '4', 'v' ) ||
695 p_stream->i_fourcc == VLC_FOURCC( 'f', 'l', 'a', 'c' ) ) &&
696 p_mux->pp_inputs[i]->p_fmt->i_extra )
698 /* Send a packet with the VOL data for mp4v
699 * or STREAMINFO for flac */
700 msg_Dbg( p_mux, "writing extra data" );
701 op.bytes = p_mux->pp_inputs[i]->p_fmt->i_extra;
702 op.packet = p_mux->pp_inputs[i]->p_fmt->p_extra;
703 if( p_stream->i_fourcc == VLC_FOURCC( 'f', 'l', 'a', 'c' ) )
705 /* Skip the flac stream marker */
712 op.packetno = p_stream->i_packet_no++;
713 ogg_stream_packetin( &p_stream->os, &op );
714 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
715 block_ChainAppend( &p_hdr, p_og );
719 /* set HEADER flag */
720 for( p_og = p_hdr; p_og != NULL; p_og = p_og->p_next )
722 p_og->i_flags |= BLOCK_FLAG_HEADER;
727 static block_t *OggCreateFooter( sout_mux_t *p_mux, mtime_t i_dts )
729 sout_mux_sys_t *p_sys = p_mux->p_sys;
730 block_t *p_hdr = NULL;
735 /* flush all remaining data */
736 for( i = 0; i < p_mux->i_nb_inputs; i++ )
738 ogg_stream_t *p_stream = p_mux->pp_inputs[i]->p_sys;
740 /* skip newly added streams */
741 if( p_stream->b_new ) continue;
743 if( ( p_og = OggStreamFlush( p_mux, &p_stream->os, 0 ) ) )
745 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
746 sout_AccessOutWrite( p_mux->p_access, p_og );
750 /* Write eos packets for each stream. */
751 for( i = 0; i < p_mux->i_nb_inputs; i++ )
753 ogg_stream_t *p_stream = p_mux->pp_inputs[i]->p_sys;
755 /* skip newly added streams */
756 if( p_stream->b_new ) continue;
763 op.packetno = p_stream->i_packet_no++;
764 ogg_stream_packetin( &p_stream->os, &op );
766 p_og = OggStreamFlush( p_mux, &p_stream->os, 0 );
767 block_ChainAppend( &p_hdr, p_og );
768 ogg_stream_clear( &p_stream->os );
771 for( i = 0; i < p_sys->i_del_streams; i++ )
778 op.packetno = p_sys->pp_del_streams[i]->i_packet_no++;
779 ogg_stream_packetin( &p_sys->pp_del_streams[i]->os, &op );
781 p_og = OggStreamFlush( p_mux, &p_sys->pp_del_streams[i]->os, 0 );
782 block_ChainAppend( &p_hdr, p_og );
783 ogg_stream_clear( &p_sys->pp_del_streams[i]->os );
789 static void OggSetDate( block_t *p_og, mtime_t i_dts, mtime_t i_length )
795 for( p_tmp = p_og, i_count = 0; p_tmp != NULL; p_tmp = p_tmp->p_next )
799 i_delta = i_length / i_count;
801 for( p_tmp = p_og; p_tmp != NULL; p_tmp = p_tmp->p_next )
803 p_tmp->i_dts = i_dts;
804 p_tmp->i_length = i_delta;
810 /*****************************************************************************
811 * Mux: multiplex available data in input fifos into the Ogg bitstream
812 *****************************************************************************/
813 static int Mux( sout_mux_t *p_mux )
815 sout_mux_sys_t *p_sys = p_mux->p_sys;
816 block_t *p_og = NULL;
820 if( p_sys->i_add_streams || p_sys->i_del_streams )
822 /* Open new ogg stream */
823 if( MuxGetStream( p_mux, &i_stream, &i_dts) < 0 )
825 msg_Dbg( p_mux, "waiting for data..." );
829 if( p_sys->i_streams )
831 /* Close current ogg stream */
834 msg_Dbg( p_mux, "writing footer" );
835 block_ChainAppend( &p_og, OggCreateFooter( p_mux, 0 ) );
837 /* Remove deleted logical streams */
838 for( i = 0; i < p_sys->i_del_streams; i++ )
840 FREE( p_sys->pp_del_streams[i] );
842 FREE( p_sys->pp_del_streams );
843 p_sys->i_streams = 0;
846 msg_Dbg( p_mux, "writing header" );
847 p_sys->i_start_dts = i_dts;
848 p_sys->i_streams = p_mux->i_nb_inputs;
849 p_sys->i_del_streams = 0;
850 p_sys->i_add_streams = 0;
851 block_ChainAppend( &p_og, OggCreateHeader( p_mux, i_dts ) );
853 /* Write header and/or footer */
854 OggSetDate( p_og, i_dts, 0 );
855 sout_AccessOutWrite( p_mux->p_access, p_og );
861 sout_input_t *p_input;
862 ogg_stream_t *p_stream;
866 if( MuxGetStream( p_mux, &i_stream, &i_dts) < 0 )
871 p_input = p_mux->pp_inputs[i_stream];
872 p_stream = (ogg_stream_t*)p_input->p_sys;
873 p_data = block_FifoGet( p_input->p_fifo );
875 if( p_stream->i_fourcc != VLC_FOURCC( 'v', 'o', 'r', 'b' ) &&
876 p_stream->i_fourcc != VLC_FOURCC( 'f', 'l', 'a', 'c' ) &&
877 p_stream->i_fourcc != VLC_FOURCC( 's', 'p', 'x', ' ' ) &&
878 p_stream->i_fourcc != VLC_FOURCC( 't', 'h', 'e', 'o' ) )
880 p_data = block_Realloc( p_data, 1, p_data->i_buffer );
881 p_data->p_buffer[0] = PACKET_IS_SYNCPOINT; // FIXME
884 op.packet = p_data->p_buffer;
885 op.bytes = p_data->i_buffer;
888 op.packetno = p_stream->i_packet_no++;
890 if( p_stream->i_cat == AUDIO_ES )
892 if( p_stream->i_fourcc == VLC_FOURCC( 'v', 'o', 'r', 'b' ) ||
893 p_stream->i_fourcc == VLC_FOURCC( 'f', 'l', 'a', 'c' ) ||
894 p_stream->i_fourcc == VLC_FOURCC( 's', 'p', 'x', ' ' ) )
896 /* number of sample from begining + current packet */
898 ( i_dts - p_sys->i_start_dts + p_data->i_length ) *
899 (mtime_t)p_input->p_fmt->audio.i_rate / I64C(1000000);
903 /* number of sample from begining */
904 op.granulepos = ( i_dts - p_sys->i_start_dts ) *
905 p_stream->oggds_header.i_samples_per_unit / I64C(1000000);
908 else if( p_stream->i_cat == VIDEO_ES )
910 if( p_stream->i_fourcc == VLC_FOURCC( 't', 'h', 'e', 'o' ) )
912 /* FIXME, we assume only keyframes and 25fps */
913 op.granulepos = ( ( i_dts - p_sys->i_start_dts ) * I64C(25)
914 / I64C(1000000) ) << p_stream->i_keyframe_granule_shift;
917 op.granulepos = ( i_dts - p_sys->i_start_dts ) * I64C(10) /
918 p_stream->oggds_header.i_time_unit;
920 else if( p_stream->i_cat == SPU_ES )
922 /* granulepos is in milisec */
923 op.granulepos = ( i_dts - p_sys->i_start_dts ) / 1000;
926 ogg_stream_packetin( &p_stream->os, &op );
928 if( p_stream->i_cat == SPU_ES ||
929 p_stream->i_fourcc == VLC_FOURCC( 's', 'p', 'x', ' ' ) )
931 /* Subtitles or Speex packets are quite small so they
932 * need to be flushed to be sent on time */
933 p_og = OggStreamFlush( p_mux, &p_stream->os, p_data->i_dts );
937 p_og = OggStreamPageOut( p_mux, &p_stream->os, p_data->i_dts );
942 OggSetDate( p_og, p_stream->i_dts, p_stream->i_length );
943 p_stream->i_dts = -1;
944 p_stream->i_length = 0;
946 sout_AccessOutWrite( p_mux->p_access, p_og );
950 if( p_stream->i_dts < 0 )
952 p_stream->i_dts = p_data->i_dts;
954 p_stream->i_length += p_data->i_length;
957 block_Release( p_data );