1 /*****************************************************************************
2 * asf.c: asf muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2003-2004, 2006 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
33 #include <vlc_common.h>
34 #include <vlc_plugin.h>
36 #include <vlc_block.h>
37 #include <vlc_codecs.h>
38 #include <vlc_arrays.h>
42 #define MAX_ASF_TRACKS 128
43 #define ASF_DATA_PACKET_SIZE 4096 // deprecated -- added sout-asf-packet-size
45 /*****************************************************************************
47 *****************************************************************************/
48 static int Open ( vlc_object_t * );
49 static void Close ( vlc_object_t * );
51 #define SOUT_CFG_PREFIX "sout-asf-"
53 #define TITLE_TEXT N_("Title")
54 #define TITLE_LONGTEXT N_("Title to put in ASF comments." )
55 #define AUTHOR_TEXT N_("Author")
56 #define AUTHOR_LONGTEXT N_("Author to put in ASF comments." )
57 #define COPYRIGHT_TEXT N_("Copyright")
58 #define COPYRIGHT_LONGTEXT N_("Copyright string to put in ASF comments." )
59 #define COMMENT_TEXT N_("Comment")
60 #define COMMENT_LONGTEXT N_("Comment to put in ASF comments." )
61 #define RATING_TEXT N_("Rating")
62 #define RATING_LONGTEXT N_("\"Rating\" to put in ASF comments." )
63 #define PACKETSIZE_TEXT N_("Packet Size")
64 #define PACKETSIZE_LONGTEXT N_("ASF packet size -- default is 4096 bytes")
65 #define BITRATE_TEXT N_("Bitrate override")
66 #define BITRATE_LONGTEXT N_("Do not try to guess ASF bitrate. Setting this, allows you to control how Windows Media Player will cache streamed content. Set to audio+video bitrate in bytes")
70 set_description( N_("ASF muxer") )
71 set_category( CAT_SOUT )
72 set_subcategory( SUBCAT_SOUT_MUX )
73 set_shortname( "ASF" )
75 set_capability( "sout mux", 5 )
77 add_shortcut( "asfh" )
78 set_callbacks( Open, Close )
80 add_string( SOUT_CFG_PREFIX "title", "", NULL, TITLE_TEXT, TITLE_LONGTEXT,
82 add_string( SOUT_CFG_PREFIX "author", "", NULL, AUTHOR_TEXT,
83 AUTHOR_LONGTEXT, true )
84 add_string( SOUT_CFG_PREFIX "copyright","", NULL, COPYRIGHT_TEXT,
85 COPYRIGHT_LONGTEXT, true )
86 add_string( SOUT_CFG_PREFIX "comment", "", NULL, COMMENT_TEXT,
87 COMMENT_LONGTEXT, true )
88 add_string( SOUT_CFG_PREFIX "rating", "", NULL, RATING_TEXT,
89 RATING_LONGTEXT, true )
90 add_integer( SOUT_CFG_PREFIX "packet-size", 4096, NULL, PACKETSIZE_TEXT,
91 PACKETSIZE_LONGTEXT, true )
92 add_integer( SOUT_CFG_PREFIX "bitrate-override", 0, NULL, BITRATE_TEXT,
93 BITRATE_LONGTEXT, true )
97 /*****************************************************************************
99 *****************************************************************************/
100 static const char *const ppsz_sout_options[] = {
101 "title", "author", "copyright", "comment", "rating", NULL
104 static int Control ( sout_mux_t *, int, va_list );
105 static int AddStream( sout_mux_t *, sout_input_t * );
106 static int DelStream( sout_mux_t *, sout_input_t * );
107 static int Mux ( sout_mux_t * );
114 /* codec information */
115 uint16_t i_tag; /* for audio */
116 vlc_fourcc_t i_fourcc; /* for video */
117 const char *psz_name; /* codec name */
118 int i_blockalign; /* for audio only */
119 bool b_audio_correction;
131 struct sout_mux_sys_t
133 guid_t fid; /* file id */
135 int64_t i_packet_count;
138 mtime_t i_preroll_time;
140 int64_t i_bitrate_override;
142 vlc_array_t *p_tracks;
162 static int MuxGetStream( sout_mux_t *, int *pi_stream, mtime_t *pi_dts );
164 static block_t *asf_header_create( sout_mux_t *, bool );
165 static block_t *asf_packet_create( sout_mux_t *, asf_track_t *, block_t * );
166 static block_t *asf_stream_end_create( sout_mux_t *);
167 static block_t *asf_packet_flush( sout_mux_t * );
177 static void bo_init ( bo_t *, uint8_t *, int );
178 static void bo_add_u8 ( bo_t *, uint8_t );
179 static void bo_addle_u16( bo_t *, uint16_t );
180 static void bo_addle_u32( bo_t *, uint32_t );
181 static void bo_addle_u64( bo_t *, uint64_t );
182 static void bo_add_mem ( bo_t *, uint8_t *, int );
184 static void bo_addle_str16( bo_t *, const char * );
186 /*****************************************************************************
188 *****************************************************************************/
189 static int Open( vlc_object_t *p_this )
191 sout_mux_t *p_mux = (sout_mux_t*)p_this;
192 sout_mux_sys_t *p_sys;
196 msg_Dbg( p_mux, "asf muxer opened" );
197 config_ChainParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
199 p_mux->pf_control = Control;
200 p_mux->pf_addstream = AddStream;
201 p_mux->pf_delstream = DelStream;
204 p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
207 p_sys->b_asf_http = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "asfh" );
208 if( p_sys->b_asf_http )
210 msg_Dbg( p_mux, "creating asf stream to be used with mmsh" );
213 p_sys->i_pk_used = 0;
214 p_sys->i_pk_frame = 0;
215 p_sys->i_dts_first = -1;
216 p_sys->i_dts_last = 0;
217 p_sys->i_preroll_time = 2000;
218 p_sys->i_bitrate = 0;
219 p_sys->i_bitrate_override = 0;
221 p_sys->p_tracks = vlc_array_new();
223 p_sys->b_write_header = true;
224 p_sys->i_packet_size = config_GetInt( p_mux, "sout-asf-packet-size" );
225 p_sys->i_bitrate_override = config_GetInt( p_mux, "sout-asf-bitrate-override" );
226 msg_Dbg( p_mux, "Packet size %d", p_sys->i_packet_size);
227 if (p_sys->i_bitrate_override)
228 msg_Dbg( p_mux, "Bitrate override %"PRId64, p_sys->i_bitrate_override);
229 p_sys->i_packet_count= 0;
231 /* Generate a random fid */
232 srand( mdate() & 0xffffffff );
233 p_sys->fid.Data1 = 0xbabac001;
234 p_sys->fid.Data2 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
235 p_sys->fid.Data3 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
236 for( i = 0; i < 8; i++ )
238 p_sys->fid.Data4[i] = ( (uint64_t)rand() << 8 ) / RAND_MAX;
242 var_Get( p_mux, SOUT_CFG_PREFIX "title", &val );
243 p_sys->psz_title = val.psz_string;
245 var_Get( p_mux, SOUT_CFG_PREFIX "author", &val );
246 p_sys->psz_author = val.psz_string;
248 var_Get( p_mux, SOUT_CFG_PREFIX "copyright", &val );
249 p_sys->psz_copyright = val.psz_string;
251 var_Get( p_mux, SOUT_CFG_PREFIX "comment", &val );
252 p_sys->psz_comment = val.psz_string;
254 var_Get( p_mux, SOUT_CFG_PREFIX "rating", &val );
255 p_sys->psz_rating = val.psz_string;
257 msg_Dbg( p_mux, "meta data: title='%s', author='%s', copyright='%s', "
258 "comment='%s', rating='%s'",
259 p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
260 p_sys->psz_comment, p_sys->psz_rating );
265 /*****************************************************************************
267 *****************************************************************************/
268 static void Close( vlc_object_t * p_this )
270 sout_mux_t *p_mux = (sout_mux_t*)p_this;
271 sout_mux_sys_t *p_sys = p_mux->p_sys;
275 msg_Dbg( p_mux, "Asf muxer closed" );
277 /* Flush last packet if any */
278 if( (out = asf_packet_flush( p_mux ) ) )
280 sout_AccessOutWrite( p_mux->p_access, out );
283 if( ( out = asf_stream_end_create( p_mux ) ) )
285 sout_AccessOutWrite( p_mux->p_access, out );
289 if( sout_AccessOutSeek( p_mux->p_access, 0 ) == VLC_SUCCESS )
291 out = asf_header_create( p_mux, false );
292 sout_AccessOutWrite( p_mux->p_access, out );
296 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
298 asf_track_t *track = (asf_track_t *)vlc_array_item_at_index( p_sys->p_tracks, i );
299 free( track->p_extra );
300 es_format_Clean( &track->fmt );
303 vlc_array_clear( p_sys->p_tracks );
305 vlc_array_destroy( p_sys->p_tracks );
307 free( p_sys->psz_title );
308 free( p_sys->psz_author );
309 free( p_sys->psz_copyright );
310 free( p_sys->psz_comment );
311 free( p_sys->psz_rating );
315 /*****************************************************************************
317 *****************************************************************************/
318 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
320 sout_mux_sys_t *p_sys = p_mux->p_sys;
326 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
327 pb_bool = (bool*)va_arg( args, bool * );
328 if( p_sys->b_asf_http ) *pb_bool = true;
329 else *pb_bool = true;
332 case MUX_GET_ADD_STREAM_WAIT:
333 pb_bool = (bool*)va_arg( args, bool * );
338 ppsz = (char**)va_arg( args, char ** );
339 if( p_sys->b_asf_http )
340 *ppsz = strdup( "video/x-ms-asf-stream" );
342 *ppsz = strdup( "video/x-ms-asf" );
350 /*****************************************************************************
352 *****************************************************************************/
353 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
355 sout_mux_sys_t *p_sys = p_mux->p_sys;
359 msg_Dbg( p_mux, "adding input" );
360 if( vlc_array_count( p_sys->p_tracks ) >= MAX_ASF_TRACKS )
362 msg_Dbg( p_mux, "cannot add this track (too much tracks)" );
366 tk = p_input->p_sys = malloc( sizeof( asf_track_t ) );
367 memset( tk, 0, sizeof( *tk ) );
368 tk->i_cat = p_input->p_fmt->i_cat;
370 tk->b_audio_correction = 0;
371 tk->b_extended = false;
377 int i_blockalign = p_input->p_fmt->audio.i_blockalign;
378 int i_bitspersample = p_input->p_fmt->audio.i_bitspersample;
381 switch( p_input->p_fmt->i_codec )
384 tk->i_tag = WAVE_FORMAT_A52;
385 tk->psz_name = "A/52";
389 tk->i_tag = WAVE_FORMAT_AAC;
390 tk->psz_name = "MPEG-4 Audio";
395 tk->psz_name = "MPEG Audio Layer 3";
396 tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
402 tk->psz_name = "MPEG Audio Layer 1/2";
403 tk->i_tag = WAVE_FORMAT_MPEG;
410 tk->psz_name = "Windows Media Audio v1";
411 tk->i_tag = WAVE_FORMAT_WMA1;
412 tk->b_audio_correction = true;
415 tk->psz_name= "Windows Media Audio (v2) 7, 8 and 9 Series";
416 tk->i_tag = WAVE_FORMAT_WMA2;
417 tk->b_audio_correction = true;
420 tk->psz_name = "Windows Media Audio 9 Professional";
421 tk->i_tag = WAVE_FORMAT_WMAP;
422 tk->b_audio_correction = true;
425 tk->psz_name = "Windows Media Audio 9 Lossless";
426 tk->i_tag = WAVE_FORMAT_WMAL;
427 tk->b_audio_correction = true;
431 tk->psz_name = "Raw audio 8bits";
432 tk->i_tag = WAVE_FORMAT_PCM;
433 i_blockalign= p_input->p_fmt->audio.i_channels;
437 tk->psz_name = "Raw audio 16bits";
438 tk->i_tag = WAVE_FORMAT_PCM;
439 i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
440 i_bitspersample = 16;
443 tk->psz_name = "Raw audio 24bits";
444 tk->i_tag = WAVE_FORMAT_PCM;
445 i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
446 i_bitspersample = 24;
449 tk->psz_name = "Raw audio 32bits";
450 tk->i_tag = WAVE_FORMAT_PCM;
451 i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
452 i_bitspersample = 32;
458 tk->i_extra = sizeof( WAVEFORMATEX ) +
459 p_input->p_fmt->i_extra + i_extra;
460 tk->p_extra = malloc( tk->i_extra );
463 bo_init( &bo, tk->p_extra, tk->i_extra );
464 bo_addle_u16( &bo, tk->i_tag );
465 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
466 bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
467 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
468 bo_addle_u16( &bo, i_blockalign );
469 tk->i_blockalign = i_blockalign;
470 bo_addle_u16( &bo, i_bitspersample );
471 if( p_input->p_fmt->i_extra > 0 )
473 bo_addle_u16( &bo, p_input->p_fmt->i_extra );
474 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
475 p_input->p_fmt->i_extra );
479 bo_addle_u16( &bo, i_extra );
480 if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
482 msg_Dbg( p_mux, "adding mp3 header" );
483 bo_addle_u16( &bo, 1 ); /* wId */
484 bo_addle_u32( &bo, 2 ); /* fdwFlags */
485 bo_addle_u16( &bo, 1152 ); /* nBlockSize */
486 bo_addle_u16( &bo, 1 ); /* nFramesPerBlock */
487 bo_addle_u16( &bo, 1393 ); /* nCodecDelay */
489 else if( tk->i_tag == WAVE_FORMAT_MPEG )
491 msg_Dbg( p_mux, "adding mp2 header" );
492 bo_addle_u16( &bo, 2 ); /* fwHeadLayer */
493 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
494 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
495 bo_addle_u16( &bo, 0 ); /* fwHeadModeExt */
496 bo_addle_u16( &bo, 1 ); /* wHeadEmphasis */
497 bo_addle_u16( &bo, 16 ); /* fwHeadFlags */
498 bo_addle_u32( &bo, 0 ); /* dwPTSLow */
499 bo_addle_u32( &bo, 0 ); /* dwPTSHigh */
503 if( p_input->p_fmt->i_bitrate > 24000 )
505 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
509 p_sys->i_bitrate += 128000;
511 if (p_sys->i_bitrate_override)
512 p_sys->i_bitrate = p_sys->i_bitrate_override;
517 const es_format_t *p_fmt = p_input->p_fmt;
518 uint8_t *p_codec_extra = NULL;
519 int i_codec_extra = 0;
521 if( p_input->p_fmt->i_codec == VLC_CODEC_MP4V )
523 tk->psz_name = "MPEG-4 Video";
524 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
526 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV3 )
528 tk->psz_name = "MSMPEG-4 V3 Video";
529 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
531 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV2 )
533 tk->psz_name = "MSMPEG-4 V2 Video";
534 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
536 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV2 )
538 tk->psz_name = "MSMPEG-4 V1 Video";
539 tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
541 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV1 )
543 tk->psz_name = "Windows Media Video 7";
544 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
546 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV2 )
548 tk->psz_name = "Windows Media Video 8";
549 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
551 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV3 )
553 tk->psz_name = "Windows Media Video 9";
554 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '3' );
556 else if( p_input->p_fmt->i_codec == VLC_CODEC_VC1 )
558 tk->psz_name = "Windows Media Video 9 Advanced Profile";
559 tk->i_fourcc = VLC_FOURCC( 'W', 'V', 'C', '1' );
560 tk->b_extended = true;
562 if( p_fmt->i_extra > 0 )
564 p_codec_extra = malloc( 1 + p_fmt->i_extra );
567 i_codec_extra = 1 + p_fmt->i_extra;
568 p_codec_extra[0] = 0x01;
569 memcpy( &p_codec_extra[1], p_fmt->p_extra, p_fmt->i_extra );
573 else if( p_input->p_fmt->i_codec == VLC_CODEC_H264 )
575 tk->psz_name = "H.264/MPEG-4 AVC";
576 tk->i_fourcc = VLC_FOURCC('h','2','6','4');
580 tk->psz_name = _("Unknown Video");
581 tk->i_fourcc = p_input->p_fmt->i_original_fourcc ?: p_input->p_fmt->i_codec;
583 if( !i_codec_extra && p_fmt->i_extra > 0 )
585 p_codec_extra = malloc( p_fmt->i_extra );
588 i_codec_extra = p_fmt->i_extra;
589 memcpy( p_codec_extra, p_fmt->p_extra, p_fmt->i_extra );
593 tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) + i_codec_extra;
594 tk->p_extra = malloc( tk->i_extra );
597 free( p_codec_extra );
600 bo_init( &bo, tk->p_extra, tk->i_extra );
601 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
602 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
603 bo_add_u8 ( &bo, 0x02 ); /* flags */
604 bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) + i_codec_extra );
605 bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) + i_codec_extra );
606 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
607 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
608 bo_addle_u16( &bo, 1 );
609 bo_addle_u16( &bo, 24 );
610 bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
611 bo_addle_u32( &bo, 0 );
612 bo_addle_u32( &bo, 0 );
613 bo_addle_u32( &bo, 0 );
614 bo_addle_u32( &bo, 0 );
615 bo_addle_u32( &bo, 0 );
616 if( i_codec_extra > 0 )
618 bo_add_mem( &bo, p_codec_extra, i_codec_extra );
619 free( p_codec_extra );
622 if( p_input->p_fmt->i_bitrate > 50000 )
624 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
628 p_sys->i_bitrate += 512000;
630 if( p_sys->i_bitrate_override )
631 p_sys->i_bitrate = p_sys->i_bitrate_override;
635 msg_Err(p_mux, "unhandled track type" );
639 es_format_Copy( &tk->fmt, p_input->p_fmt );
641 vlc_array_append( p_sys->p_tracks, (void *)tk);
642 tk->i_id = vlc_array_index_of_item( p_sys->p_tracks, tk ) + 1;
645 p_sys->b_write_header = true;
650 /*****************************************************************************
652 *****************************************************************************/
653 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
655 /* if bitrate ain't defined in commanline, reduce it when tracks are deleted
657 sout_mux_sys_t *p_sys = p_mux->p_sys;
658 asf_track_t *tk = p_input->p_sys;
659 msg_Dbg( p_mux, "removing input" );
660 if(!p_sys->i_bitrate_override)
662 if( tk->i_cat == AUDIO_ES )
664 if( p_input->p_fmt->i_bitrate > 24000 )
665 p_sys->i_bitrate -= p_input->p_fmt->i_bitrate;
667 p_sys->i_bitrate -= 128000;
669 else if(tk->i_cat == VIDEO_ES )
671 if( p_input->p_fmt->i_bitrate > 50000 )
672 p_sys->i_bitrate -= p_input->p_fmt->i_bitrate;
674 p_sys->i_bitrate -= 512000;
678 vlc_array_remove( p_sys->p_tracks, vlc_array_index_of_item( p_sys->p_tracks, (void *)tk ) );
681 p_sys->b_write_header = true;
685 /*****************************************************************************
687 *****************************************************************************/
688 static int Mux( sout_mux_t *p_mux )
690 sout_mux_sys_t *p_sys = p_mux->p_sys;
692 if( p_sys->b_write_header )
694 block_t *out = asf_header_create( p_mux, true );
696 out->i_flags |= BLOCK_FLAG_HEADER;
697 sout_AccessOutWrite( p_mux->p_access, out );
699 p_sys->b_write_header = false;
704 sout_input_t *p_input;
711 if( MuxGetStream( p_mux, &i_stream, &i_dts ) )
713 /* not enough data */
717 if( p_sys->i_dts_first < 0 )
719 p_sys->i_dts_first = i_dts;
721 if( p_sys->i_dts_last < i_dts )
723 p_sys->i_dts_last = i_dts;
726 p_input = p_mux->pp_inputs[i_stream];
727 tk = (asf_track_t*)p_input->p_sys;
729 data = block_FifoGet( p_input->p_fifo );
731 /* Convert VC1 to ASF special format */
732 if( tk->i_fourcc == VLC_FOURCC( 'W', 'V', 'C', '1' ) )
734 while( data->i_buffer >= 4 &&
735 ( data->p_buffer[0] != 0x00 || data->p_buffer[1] != 0x00 ||
736 data->p_buffer[2] != 0x01 ||
737 ( data->p_buffer[3] != 0x0D && data->p_buffer[3] != 0x0C ) ) )
742 if( data->i_buffer >= 4 )
749 if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
751 sout_AccessOutWrite( p_mux->p_access, pk );
758 static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
764 for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
766 sout_input_t *p_input = p_mux->pp_inputs[i];
769 if( block_FifoCount( p_input->p_fifo ) <= 0 )
771 if( p_input->p_fmt->i_cat == AUDIO_ES ||
772 p_input->p_fmt->i_cat == VIDEO_ES )
774 /* We need that audio+video fifo contain at least 1 packet */
781 p_data = block_FifoShow( p_input->p_fifo );
782 if( i_stream == -1 || p_data->i_dts < i_dts )
785 i_dts = p_data->i_dts;
789 *pi_stream = i_stream;
795 /****************************************************************************
796 * Asf header construction
797 ****************************************************************************/
799 /****************************************************************************
801 ****************************************************************************/
802 static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
804 p_bo->i_buffer_size = i_size;
806 p_bo->p_buffer = p_buffer;
808 static void bo_add_u8( bo_t *p_bo, uint8_t i )
810 if( p_bo->i_buffer < p_bo->i_buffer_size )
812 p_bo->p_buffer[p_bo->i_buffer] = i;
816 static void bo_addle_u16( bo_t *p_bo, uint16_t i )
818 bo_add_u8( p_bo, i &0xff );
819 bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
821 static void bo_addle_u32( bo_t *p_bo, uint32_t i )
823 bo_addle_u16( p_bo, i &0xffff );
824 bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
826 static void bo_addle_u64( bo_t *p_bo, uint64_t i )
828 bo_addle_u32( p_bo, i &0xffffffff );
829 bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
832 static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
834 int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );
838 memcpy( &p_bo->p_buffer[p_bo->i_buffer], p_mem, i_copy );
840 p_bo->i_buffer += i_size;
843 static void bo_addle_str16( bo_t *bo, const char *str )
845 bo_addle_u16( bo, strlen( str ) + 1 );
848 uint16_t c = (uint8_t)*str++;
849 bo_addle_u16( bo, c );
850 if( c == '\0' ) break;
854 static void bo_addle_str16_nosize( bo_t *bo, const char *str )
858 uint16_t c = (uint8_t)*str++;
859 bo_addle_u16( bo, c );
860 if( c == '\0' ) break;
864 /****************************************************************************
866 ****************************************************************************/
867 static void bo_add_guid( bo_t *p_bo, const guid_t *id )
870 bo_addle_u32( p_bo, id->Data1 );
871 bo_addle_u16( p_bo, id->Data2 );
872 bo_addle_u16( p_bo, id->Data3 );
873 for( i = 0; i < 8; i++ )
875 bo_add_u8( p_bo, id->Data4[i] );
879 static const guid_t asf_object_header_guid =
880 {0x75B22630, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
881 static const guid_t asf_object_data_guid =
882 {0x75B22636, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
883 static const guid_t asf_object_file_properties_guid =
884 {0x8cabdca1, 0xa947, 0x11cf, {0x8e, 0xe4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
885 static const guid_t asf_object_stream_properties_guid =
886 {0xB7DC0791, 0xA9B7, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
887 static const guid_t asf_object_header_extension_guid =
888 {0x5FBF03B5, 0xA92E, 0x11CF, {0x8E, 0xE3, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
889 static const guid_t asf_object_stream_type_audio =
890 {0xF8699E40, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
891 static const guid_t asf_object_stream_type_video =
892 {0xbc19efc0, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
893 static const guid_t asf_guid_audio_conceal_none =
894 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
895 static const guid_t asf_guid_audio_conceal_spread =
896 {0xBFC3CD50, 0x618F, 0x11CF, {0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20}};
897 static const guid_t asf_guid_video_conceal_none =
898 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
899 static const guid_t asf_guid_reserved_1 =
900 {0xABD3D211, 0xA9BA, 0x11cf, {0x8E, 0xE6, 0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65}};
901 static const guid_t asf_object_codec_list_guid =
902 {0x86D15240, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
903 static const guid_t asf_object_codec_list_reserved_guid =
904 {0x86D15241, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
905 static const guid_t asf_object_content_description_guid =
906 {0x75B22633, 0x668E, 0x11CF, {0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}};
907 static const guid_t asf_object_index_guid =
908 {0x33000890, 0xE5B1, 0x11CF, {0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB}};
909 static const guid_t asf_object_metadata_guid =
910 {0xC5F8CBEA, 0x5BAF, 0x4877, {0x84, 0x67, 0xAA, 0x8C, 0x44, 0xFA, 0x4C, 0xCA}};
911 static const guid_t asf_object_extended_stream_properties_guid =
912 {0x14E6A5CB, 0xC672, 0x4332, {0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A}};
914 /****************************************************************************
916 ****************************************************************************/
917 static void asf_chunk_add( bo_t *bo,
918 int i_type, int i_len, int i_flags, int i_seq )
920 bo_addle_u16( bo, i_type );
921 bo_addle_u16( bo, i_len + 8 );
922 bo_addle_u32( bo, i_seq );
923 bo_addle_u16( bo, i_flags );
924 bo_addle_u16( bo, i_len + 8 );
927 static block_t *asf_header_create( sout_mux_t *p_mux, bool b_broadcast )
929 sout_mux_sys_t *p_sys = p_mux->p_sys;
931 mtime_t i_duration = 0;
932 int i_size, i_header_ext_size, i;
933 int i_ci_size, i_cm_size = 0, i_cd_size = 0;
937 msg_Dbg( p_mux, "Asf muxer creating header" );
939 if( p_sys->i_dts_first > 0 )
941 i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
942 if( i_duration < 0 ) i_duration = 0;
945 /* calculate header size */
948 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
950 tk = vlc_array_item_at_index( p_sys->p_tracks, i );
951 /* update also track-id */
954 i_size += 78 + tk->i_extra;
955 i_ci_size += 8 + 2 * strlen( tk->psz_name );
956 if( tk->i_cat == AUDIO_ES ) i_ci_size += 4;
957 else if( tk->i_cat == VIDEO_ES ) i_ci_size += 6;
959 /* Error correction data field */
960 if( tk->b_audio_correction ) i_size += 8;
963 /* size of the content description object */
964 if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
965 *p_sys->psz_comment || *p_sys->psz_rating )
967 i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
968 strlen( p_sys->psz_author ) + 1 +
969 strlen( p_sys->psz_copyright ) + 1 +
970 strlen( p_sys->psz_comment ) + 1 +
971 strlen( p_sys->psz_rating ) + 1 );
974 i_header_ext_size = 46;
976 /* size of the metadata object */
977 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
979 const asf_track_t *p_track = vlc_array_item_at_index( p_sys->p_tracks, i );
980 if( p_track->i_cat == VIDEO_ES && p_track->fmt.video.i_aspect != 0 )
982 i_cm_size = 26 + 2 * (16 + 2 * sizeof("AspectRatio?"));
985 if( p_track->b_extended )
986 i_header_ext_size += 88;
990 i_header_ext_size += i_cm_size;
992 i_size += i_ci_size + i_cd_size + i_header_ext_size ;
994 if( p_sys->b_asf_http )
996 out = block_New( p_mux, i_size + 50 + 12 );
997 bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
998 asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
1002 out = block_New( p_mux, i_size + 50 );
1003 bo_init( &bo, out->p_buffer, i_size + 50 );
1007 bo_add_guid ( &bo, &asf_object_header_guid );
1008 bo_addle_u64( &bo, i_size );
1009 bo_addle_u32( &bo, 2 + vlc_array_count( p_sys->p_tracks ) + 1 +
1010 (i_cd_size ? 1 : 0) + (i_cm_size ? 1 : 0) );
1011 bo_add_u8 ( &bo, 1 );
1012 bo_add_u8 ( &bo, 2 );
1016 /* file properties */
1017 bo_add_guid ( &bo, &asf_object_file_properties_guid );
1018 bo_addle_u64( &bo, 104 );
1019 bo_add_guid ( &bo, &p_sys->fid );
1020 bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
1021 p_sys->i_packet_size ); /* file size */
1022 bo_addle_u64( &bo, 0 ); /* creation date */
1023 bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
1024 bo_addle_u64( &bo, i_duration * 10 ); /* play duration (100ns) */
1025 bo_addle_u64( &bo, i_duration * 10 ); /* send duration (100ns) */
1026 bo_addle_u64( &bo, p_sys->i_preroll_time ); /* preroll duration (ms) */
1027 bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x02 /* seekable */ ); /* flags */
1028 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size min */
1029 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size max */
1030 bo_addle_u32( &bo, p_sys->i_bitrate ); /* maxbitrate */
1032 /* header extension */
1033 bo_add_guid ( &bo, &asf_object_header_extension_guid );
1034 bo_addle_u64( &bo, i_header_ext_size );
1035 bo_add_guid ( &bo, &asf_guid_reserved_1 );
1036 bo_addle_u16( &bo, 6 );
1037 bo_addle_u32( &bo, i_header_ext_size - 46 );
1039 /* extended stream properties */
1040 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1042 const asf_track_t *p_track = vlc_array_item_at_index( p_sys->p_tracks, i );
1043 const es_format_t *p_fmt = &p_track->fmt;
1045 if( !p_track->b_extended )
1048 uint64_t i_avg_duration = 0;
1049 if( p_fmt->i_cat == VIDEO_ES &&
1050 p_fmt->video.i_frame_rate > 0 && p_fmt->video.i_frame_rate_base > 0 )
1051 i_avg_duration = ( INT64_C(10000000) * p_fmt->video.i_frame_rate_base +
1052 p_fmt->video.i_frame_rate/2 ) / p_fmt->video.i_frame_rate;
1054 bo_add_guid ( &bo, &asf_object_extended_stream_properties_guid );
1055 bo_addle_u64( &bo, 88 );
1056 bo_addle_u64( &bo, 0 );
1057 bo_addle_u64( &bo, 0 );
1058 bo_addle_u32( &bo, p_fmt->i_bitrate ); /* Bitrate */
1059 bo_addle_u32( &bo, 0 ); /* Buffer size */
1060 bo_addle_u32( &bo, 0 ); /* Initial buffer fullness */
1061 bo_addle_u32( &bo, p_fmt->i_bitrate ); /* Alternate Bitrate */
1062 bo_addle_u32( &bo, 0 ); /* Alternate Buffer size */
1063 bo_addle_u32( &bo, 0 ); /* Alternate Initial buffer fullness */
1064 bo_addle_u32( &bo, 0 ); /* Maximum object size (0 = unkown) */
1065 bo_addle_u32( &bo, 0x02 ); /* Flags (seekable) */
1066 bo_addle_u16( &bo, tk->i_id ); /* Stream number */
1067 bo_addle_u16( &bo, 0 ); /* Stream language index */
1068 bo_addle_u64( &bo, i_avg_duration ); /* Average time per frame */
1069 bo_addle_u16( &bo, 0 ); /* Stream name count */
1070 bo_addle_u16( &bo, 0 ); /* Payload extension system count */
1073 /* metadata object (part of header extension) */
1076 int64_t i_num, i_den;
1077 unsigned int i_dst_num, i_dst_den;
1080 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1082 tk = vlc_array_item_at_index( p_sys->p_tracks, i );
1083 if( tk->i_cat == VIDEO_ES ) break;
1086 i_num = tk->fmt.video.i_aspect *
1087 (int64_t)tk->fmt.video.i_height;
1088 i_den = VOUT_ASPECT_FACTOR * tk->fmt.video.i_width;
1089 vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
1091 msg_Dbg( p_mux, "pixel aspect-ratio: %i/%i", i_dst_num, i_dst_den );
1093 bo_add_guid ( &bo, &asf_object_metadata_guid );
1094 bo_addle_u64( &bo, i_cm_size );
1095 bo_addle_u16( &bo, 2 ); /* description records count */
1096 /* 1st description record */
1097 bo_addle_u16( &bo, 0 ); /* reserved */
1098 bo_addle_u16( &bo, tk->i_id ); /* stream number (0 for the whole file) */
1099 bo_addle_u16( &bo, 2 * sizeof("AspectRatioX") ); /* name length */
1100 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
1101 bo_addle_u32( &bo, 4 ); /* data length */
1102 bo_addle_str16_nosize( &bo, "AspectRatioX" );
1103 bo_addle_u32( &bo, i_dst_num ); /* data */
1104 /* 2nd description record */
1105 bo_addle_u16( &bo, 0 ); /* reserved */
1106 bo_addle_u16( &bo, tk->i_id ); /* stream number (0 for the whole file) */
1107 bo_addle_u16( &bo, 2 * sizeof("AspectRatioY") ); /* name length */
1108 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
1109 bo_addle_u32( &bo, 4 ); /* data length */
1110 bo_addle_str16_nosize( &bo, "AspectRatioY" );
1111 bo_addle_u32( &bo, i_dst_den ); /* data */
1114 /* content description header */
1117 bo_add_guid ( &bo, &asf_object_content_description_guid );
1118 bo_addle_u64( &bo, i_cd_size );
1119 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
1120 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
1121 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
1122 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
1123 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );
1125 bo_addle_str16_nosize( &bo, p_sys->psz_title );
1126 bo_addle_str16_nosize( &bo, p_sys->psz_author );
1127 bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
1128 bo_addle_str16_nosize( &bo, p_sys->psz_comment );
1129 bo_addle_str16_nosize( &bo, p_sys->psz_rating );
1132 /* stream properties */
1133 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1135 tk = vlc_array_item_at_index( p_sys->p_tracks, i);
1137 bo_add_guid ( &bo, &asf_object_stream_properties_guid );
1138 bo_addle_u64( &bo, 78 + tk->i_extra + (tk->b_audio_correction ? 8:0) );
1140 if( tk->i_cat == AUDIO_ES )
1142 bo_add_guid( &bo, &asf_object_stream_type_audio );
1143 if( tk->b_audio_correction )
1144 bo_add_guid( &bo, &asf_guid_audio_conceal_spread );
1146 bo_add_guid( &bo, &asf_guid_audio_conceal_none );
1148 else if( tk->i_cat == VIDEO_ES )
1150 bo_add_guid( &bo, &asf_object_stream_type_video );
1151 bo_add_guid( &bo, &asf_guid_video_conceal_none );
1153 bo_addle_u64( &bo, 0 ); /* time offset */
1154 bo_addle_u32( &bo, tk->i_extra );
1155 /* correction data length */
1156 bo_addle_u32( &bo, tk->b_audio_correction ? 8 : 0 );
1157 bo_addle_u16( &bo, tk->i_id ); /* stream number */
1158 bo_addle_u32( &bo, 0 );
1159 bo_add_mem ( &bo, tk->p_extra, tk->i_extra );
1161 /* Error correction data field */
1162 if( tk->b_audio_correction )
1164 bo_add_u8( &bo, 0x1 ); /* span */
1165 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual packet length */
1166 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual chunck length */
1167 bo_addle_u16( &bo, 1 ); /* silence length */
1168 bo_add_u8( &bo, 0x0 ); /* data */
1173 bo_add_guid ( &bo, &asf_object_codec_list_guid );
1174 bo_addle_u64( &bo, i_ci_size );
1175 bo_add_guid ( &bo, &asf_object_codec_list_reserved_guid );
1176 bo_addle_u32( &bo, vlc_array_count( p_sys->p_tracks ) );
1177 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1179 tk = vlc_array_item_at_index( p_sys->p_tracks ,i);
1181 if( tk->i_cat == VIDEO_ES ) bo_addle_u16( &bo, 1 /* video */ );
1182 else if( tk->i_cat == AUDIO_ES ) bo_addle_u16( &bo, 2 /* audio */ );
1183 else bo_addle_u16( &bo, 0xFFFF /* unknown */ );
1185 bo_addle_str16( &bo, tk->psz_name );
1186 bo_addle_u16( &bo, 0 );
1187 if( tk->i_cat == AUDIO_ES )
1189 bo_addle_u16( &bo, 2 );
1190 bo_addle_u16( &bo, tk->i_tag );
1192 else if( tk->i_cat == VIDEO_ES )
1194 bo_addle_u16( &bo, 4 );
1195 bo_add_mem ( &bo, (uint8_t*)&tk->i_fourcc, 4 );
1200 bo_add_guid ( &bo, &asf_object_data_guid );
1201 bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
1202 bo_add_guid ( &bo, &p_sys->fid );
1203 bo_addle_u64( &bo, p_sys->i_packet_count );
1204 bo_addle_u16( &bo, 0x101 );
1209 /****************************************************************************
1211 ****************************************************************************/
1212 static block_t *asf_packet_flush( sout_mux_t *p_mux )
1214 sout_mux_sys_t *p_sys = p_mux->p_sys;
1215 int i_pad, i_preheader = p_sys->b_asf_http ? 12 : 0;
1219 if( !p_sys->pk ) return 0;
1221 i_pad = p_sys->i_packet_size - p_sys->i_pk_used;
1222 memset( p_sys->pk->p_buffer + p_sys->i_pk_used, 0, i_pad );
1224 bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );
1226 if( p_sys->b_asf_http )
1227 asf_chunk_add( &bo, 0x4424, p_sys->i_packet_size, 0x0, p_sys->i_seq++);
1229 bo_add_u8 ( &bo, 0x82 );
1230 bo_addle_u16( &bo, 0 );
1231 bo_add_u8( &bo, 0x11 );
1232 bo_add_u8( &bo, 0x5d );
1233 bo_addle_u16( &bo, i_pad );
1234 bo_addle_u32( &bo, (p_sys->i_pk_dts - p_sys->i_dts_first) / 1000 +
1235 p_sys->i_preroll_time );
1236 bo_addle_u16( &bo, 0 /* data->i_length */ );
1237 bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );
1242 p_sys->i_packet_count++;
1247 static block_t *asf_packet_create( sout_mux_t *p_mux,
1248 asf_track_t *tk, block_t *data )
1250 sout_mux_sys_t *p_sys = p_mux->p_sys;
1252 int i_data = data->i_buffer;
1254 uint8_t *p_data= data->p_buffer;
1255 block_t *first = NULL, **last = &first;
1256 int i_preheader = p_sys->b_asf_http ? 12 : 0;
1258 while( i_pos < i_data )
1263 if( p_sys->pk == NULL )
1265 p_sys->pk = block_New( p_mux, p_sys->i_packet_size + i_preheader );
1266 /* reserve 14 bytes for the packet header */
1267 p_sys->i_pk_used = 14 + i_preheader;
1268 p_sys->i_pk_frame = 0;
1269 p_sys->i_pk_dts = data->i_dts;
1272 bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
1273 p_sys->i_packet_size - p_sys->i_pk_used );
1275 /* add payload (header size = 17) */
1276 i_payload = __MIN( i_data - i_pos,
1277 p_sys->i_packet_size - p_sys->i_pk_used - 17 );
1279 if( tk->b_audio_correction && p_sys->i_pk_frame && i_payload < i_data )
1281 /* Don't know why yet but WMP doesn't like splitted WMA packets */
1282 *last = asf_packet_flush( p_mux );
1283 last = &(*last)->p_next;
1287 bo_add_u8 ( &bo, !(data->i_flags & BLOCK_FLAG_TYPE_P ||
1288 data->i_flags & BLOCK_FLAG_TYPE_B) ?
1289 0x80 | tk->i_id : tk->i_id );
1290 bo_add_u8 ( &bo, tk->i_sequence );
1291 bo_addle_u32( &bo, i_pos );
1292 bo_add_u8 ( &bo, 0x08 ); /* flags */
1293 bo_addle_u32( &bo, i_data );
1294 bo_addle_u32( &bo, (data->i_dts - p_sys->i_dts_first) / 1000 +
1295 p_sys->i_preroll_time );
1296 bo_addle_u16( &bo, i_payload );
1297 bo_add_mem ( &bo, &p_data[i_pos], i_payload );
1299 p_sys->i_pk_used += 17 + i_payload;
1301 p_sys->i_pk_frame++;
1303 if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1305 /* Not enough data for another payload, flush the packet */
1306 *last = asf_packet_flush( p_mux );
1307 last = &(*last)->p_next;
1312 block_Release( data );
1317 static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1319 sout_mux_sys_t *p_sys = p_mux->p_sys;
1321 block_t *out = NULL;
1324 if( p_sys->b_asf_http )
1326 out = block_New( p_mux, 12 );
1327 bo_init( &bo, out->p_buffer, 12 );
1328 asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
1333 out = block_New( p_mux, 56 );
1334 bo_init( &bo, out->p_buffer, 56 );
1335 bo_add_guid ( &bo, &asf_object_index_guid );
1336 bo_addle_u64( &bo, 56 );
1337 bo_add_guid ( &bo, &p_sys->fid );
1338 bo_addle_u64( &bo, 10000000 );
1339 bo_addle_u32( &bo, 5 );
1340 bo_addle_u32( &bo, 0 );