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 *****************************************************************************/
35 #include <vlc_common.h>
36 #include <vlc_plugin.h>
38 #include <vlc_block.h>
39 #include <vlc_codecs.h>
40 #include <vlc_arrays.h>
44 #define MAX_ASF_TRACKS 128
45 #define ASF_DATA_PACKET_SIZE 4096 // deprecated -- added sout-asf-packet-size
47 /*****************************************************************************
49 *****************************************************************************/
50 static int Open ( vlc_object_t * );
51 static void Close ( vlc_object_t * );
53 #define SOUT_CFG_PREFIX "sout-asf-"
55 #define TITLE_TEXT N_("Title")
56 #define TITLE_LONGTEXT N_("Title to put in ASF comments." )
57 #define AUTHOR_TEXT N_("Author")
58 #define AUTHOR_LONGTEXT N_("Author to put in ASF comments." )
59 #define COPYRIGHT_TEXT N_("Copyright")
60 #define COPYRIGHT_LONGTEXT N_("Copyright string to put in ASF comments." )
61 #define COMMENT_TEXT N_("Comment")
62 #define COMMENT_LONGTEXT N_("Comment to put in ASF comments." )
63 #define RATING_TEXT N_("Rating")
64 #define RATING_LONGTEXT N_("\"Rating\" to put in ASF comments." )
65 #define PACKETSIZE_TEXT N_("Packet Size")
66 #define PACKETSIZE_LONGTEXT N_("ASF packet size -- default is 4096 bytes")
67 #define BITRATE_TEXT N_("Bitrate override")
68 #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")
72 set_description( N_("ASF muxer") )
73 set_category( CAT_SOUT )
74 set_subcategory( SUBCAT_SOUT_MUX )
75 set_shortname( "ASF" )
77 set_capability( "sout mux", 5 )
79 add_shortcut( "asfh" )
80 set_callbacks( Open, Close )
82 add_string( SOUT_CFG_PREFIX "title", "", NULL, TITLE_TEXT, TITLE_LONGTEXT,
84 add_string( SOUT_CFG_PREFIX "author", "", NULL, AUTHOR_TEXT,
85 AUTHOR_LONGTEXT, true )
86 add_string( SOUT_CFG_PREFIX "copyright","", NULL, COPYRIGHT_TEXT,
87 COPYRIGHT_LONGTEXT, true )
88 add_string( SOUT_CFG_PREFIX "comment", "", NULL, COMMENT_TEXT,
89 COMMENT_LONGTEXT, true )
90 add_string( SOUT_CFG_PREFIX "rating", "", NULL, RATING_TEXT,
91 RATING_LONGTEXT, true )
92 add_integer( SOUT_CFG_PREFIX "packet-size", 4096, NULL, PACKETSIZE_TEXT,
93 PACKETSIZE_LONGTEXT, true )
94 add_integer( SOUT_CFG_PREFIX "bitrate-override", 0, NULL, BITRATE_TEXT,
95 BITRATE_LONGTEXT, true )
99 /*****************************************************************************
101 *****************************************************************************/
102 static const char *const ppsz_sout_options[] = {
103 "title", "author", "copyright", "comment", "rating", NULL
106 static int Control ( sout_mux_t *, int, va_list );
107 static int AddStream( sout_mux_t *, sout_input_t * );
108 static int DelStream( sout_mux_t *, sout_input_t * );
109 static int Mux ( sout_mux_t * );
116 /* codec information */
117 uint16_t i_tag; /* for audio */
118 vlc_fourcc_t i_fourcc; /* for video */
119 const char *psz_name; /* codec name */
120 int i_blockalign; /* for audio only */
121 bool b_audio_correction;
133 struct sout_mux_sys_t
135 guid_t fid; /* file id */
137 int64_t i_packet_count;
140 mtime_t i_preroll_time;
142 int64_t i_bitrate_override;
144 vlc_array_t *p_tracks;
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;
195 msg_Dbg( p_mux, "asf muxer opened" );
196 config_ChainParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
198 p_mux->pf_control = Control;
199 p_mux->pf_addstream = AddStream;
200 p_mux->pf_delstream = DelStream;
203 p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
206 p_sys->b_asf_http = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "asfh" );
207 if( p_sys->b_asf_http )
209 msg_Dbg( p_mux, "creating asf stream to be used with mmsh" );
212 p_sys->i_pk_used = 0;
213 p_sys->i_pk_frame = 0;
215 p_sys->i_dts_last = VLC_TS_INVALID;
216 p_sys->i_preroll_time = 2000;
217 p_sys->i_bitrate = 0;
218 p_sys->i_bitrate_override = 0;
220 p_sys->p_tracks = vlc_array_new();
222 p_sys->b_write_header = true;
223 p_sys->i_packet_size = config_GetInt( p_mux, "sout-asf-packet-size" );
224 p_sys->i_bitrate_override = config_GetInt( p_mux, "sout-asf-bitrate-override" );
225 msg_Dbg( p_mux, "Packet size %d", p_sys->i_packet_size);
226 if (p_sys->i_bitrate_override)
227 msg_Dbg( p_mux, "Bitrate override %"PRId64, p_sys->i_bitrate_override);
228 p_sys->i_packet_count= 0;
230 /* Generate a random fid */
231 srand( mdate() & 0xffffffff );
232 p_sys->fid.Data1 = 0xbabac001;
233 p_sys->fid.Data2 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
234 p_sys->fid.Data3 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
235 for( i = 0; i < 8; i++ )
237 p_sys->fid.Data4[i] = ( (uint64_t)rand() << 8 ) / RAND_MAX;
241 p_sys->psz_title = var_GetString( p_mux, SOUT_CFG_PREFIX "title" );
242 p_sys->psz_author = var_GetString( p_mux, SOUT_CFG_PREFIX "author" );
243 p_sys->psz_copyright = var_GetString( p_mux, SOUT_CFG_PREFIX "copyright" );
244 p_sys->psz_comment = var_GetString( p_mux, SOUT_CFG_PREFIX "comment" );
245 p_sys->psz_rating = var_GetString( p_mux, SOUT_CFG_PREFIX "rating" );
247 msg_Dbg( p_mux, "meta data: title='%s', author='%s', copyright='%s', "
248 "comment='%s', rating='%s'",
249 p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
250 p_sys->psz_comment, p_sys->psz_rating );
255 /*****************************************************************************
257 *****************************************************************************/
258 static void Close( vlc_object_t * p_this )
260 sout_mux_t *p_mux = (sout_mux_t*)p_this;
261 sout_mux_sys_t *p_sys = p_mux->p_sys;
265 msg_Dbg( p_mux, "Asf muxer closed" );
267 /* Flush last packet if any */
268 if( (out = asf_packet_flush( p_mux ) ) )
270 sout_AccessOutWrite( p_mux->p_access, out );
273 if( ( out = asf_stream_end_create( p_mux ) ) )
275 sout_AccessOutWrite( p_mux->p_access, out );
279 if( sout_AccessOutSeek( p_mux->p_access, 0 ) == VLC_SUCCESS )
281 out = asf_header_create( p_mux, false );
282 sout_AccessOutWrite( p_mux->p_access, out );
286 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
288 asf_track_t *track = (asf_track_t *)vlc_array_item_at_index( p_sys->p_tracks, i );
289 free( track->p_extra );
290 es_format_Clean( &track->fmt );
293 vlc_array_clear( p_sys->p_tracks );
295 vlc_array_destroy( p_sys->p_tracks );
297 free( p_sys->psz_title );
298 free( p_sys->psz_author );
299 free( p_sys->psz_copyright );
300 free( p_sys->psz_comment );
301 free( p_sys->psz_rating );
305 /*****************************************************************************
307 *****************************************************************************/
308 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
310 sout_mux_sys_t *p_sys = p_mux->p_sys;
316 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
317 pb_bool = (bool*)va_arg( args, bool * );
318 if( p_sys->b_asf_http ) *pb_bool = true;
319 else *pb_bool = false;
322 case MUX_GET_ADD_STREAM_WAIT:
323 pb_bool = (bool*)va_arg( args, bool * );
328 ppsz = (char**)va_arg( args, char ** );
329 if( p_sys->b_asf_http )
330 *ppsz = strdup( "video/x-ms-asf-stream" );
332 *ppsz = strdup( "video/x-ms-asf" );
340 /*****************************************************************************
342 *****************************************************************************/
343 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
345 sout_mux_sys_t *p_sys = p_mux->p_sys;
349 msg_Dbg( p_mux, "adding input" );
350 if( vlc_array_count( p_sys->p_tracks ) >= MAX_ASF_TRACKS )
352 msg_Dbg( p_mux, "cannot add this track (too much tracks)" );
356 tk = p_input->p_sys = malloc( sizeof( asf_track_t ) );
357 memset( tk, 0, sizeof( *tk ) );
358 tk->i_cat = p_input->p_fmt->i_cat;
360 tk->b_audio_correction = 0;
361 tk->b_extended = false;
367 int i_blockalign = p_input->p_fmt->audio.i_blockalign;
368 int i_bitspersample = p_input->p_fmt->audio.i_bitspersample;
371 switch( p_input->p_fmt->i_codec )
374 tk->i_tag = WAVE_FORMAT_A52;
375 tk->psz_name = "A/52";
379 tk->i_tag = WAVE_FORMAT_AAC;
380 tk->psz_name = "MPEG-4 Audio";
385 tk->psz_name = "MPEG Audio Layer 3";
386 tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
392 tk->psz_name = "MPEG Audio Layer 1/2";
393 tk->i_tag = WAVE_FORMAT_MPEG;
400 tk->psz_name = "Windows Media Audio v1";
401 tk->i_tag = WAVE_FORMAT_WMA1;
402 tk->b_audio_correction = true;
405 tk->psz_name= "Windows Media Audio (v2) 7, 8 and 9 Series";
406 tk->i_tag = WAVE_FORMAT_WMA2;
407 tk->b_audio_correction = true;
410 tk->psz_name = "Windows Media Audio 9 Professional";
411 tk->i_tag = WAVE_FORMAT_WMAP;
412 tk->b_audio_correction = true;
415 tk->psz_name = "Windows Media Audio 9 Lossless";
416 tk->i_tag = WAVE_FORMAT_WMAL;
417 tk->b_audio_correction = true;
421 tk->psz_name = "Raw audio 8bits";
422 tk->i_tag = WAVE_FORMAT_PCM;
423 i_blockalign= p_input->p_fmt->audio.i_channels;
427 tk->psz_name = "Raw audio 16bits";
428 tk->i_tag = WAVE_FORMAT_PCM;
429 i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
430 i_bitspersample = 16;
433 tk->psz_name = "Raw audio 24bits";
434 tk->i_tag = WAVE_FORMAT_PCM;
435 i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
436 i_bitspersample = 24;
439 tk->psz_name = "Raw audio 32bits";
440 tk->i_tag = WAVE_FORMAT_PCM;
441 i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
442 i_bitspersample = 32;
448 tk->i_extra = sizeof( WAVEFORMATEX ) +
449 p_input->p_fmt->i_extra + i_extra;
450 tk->p_extra = malloc( tk->i_extra );
453 bo_init( &bo, tk->p_extra, tk->i_extra );
454 bo_addle_u16( &bo, tk->i_tag );
455 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
456 bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
457 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
458 bo_addle_u16( &bo, i_blockalign );
459 tk->i_blockalign = i_blockalign;
460 bo_addle_u16( &bo, i_bitspersample );
461 if( p_input->p_fmt->i_extra > 0 )
463 bo_addle_u16( &bo, p_input->p_fmt->i_extra );
464 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
465 p_input->p_fmt->i_extra );
469 bo_addle_u16( &bo, i_extra );
470 if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
472 msg_Dbg( p_mux, "adding mp3 header" );
473 bo_addle_u16( &bo, 1 ); /* wId */
474 bo_addle_u32( &bo, 2 ); /* fdwFlags */
475 bo_addle_u16( &bo, 1152 ); /* nBlockSize */
476 bo_addle_u16( &bo, 1 ); /* nFramesPerBlock */
477 bo_addle_u16( &bo, 1393 ); /* nCodecDelay */
479 else if( tk->i_tag == WAVE_FORMAT_MPEG )
481 msg_Dbg( p_mux, "adding mp2 header" );
482 bo_addle_u16( &bo, 2 ); /* fwHeadLayer */
483 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
484 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
485 bo_addle_u16( &bo, 0 ); /* fwHeadModeExt */
486 bo_addle_u16( &bo, 1 ); /* wHeadEmphasis */
487 bo_addle_u16( &bo, 16 ); /* fwHeadFlags */
488 bo_addle_u32( &bo, 0 ); /* dwPTSLow */
489 bo_addle_u32( &bo, 0 ); /* dwPTSHigh */
493 if( p_input->p_fmt->i_bitrate > 24000 )
495 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
499 p_sys->i_bitrate += 128000;
501 if (p_sys->i_bitrate_override)
502 p_sys->i_bitrate = p_sys->i_bitrate_override;
507 const es_format_t *p_fmt = p_input->p_fmt;
508 uint8_t *p_codec_extra = NULL;
509 int i_codec_extra = 0;
511 if( p_input->p_fmt->i_codec == VLC_CODEC_MP4V )
513 tk->psz_name = "MPEG-4 Video";
514 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
516 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV3 )
518 tk->psz_name = "MSMPEG-4 V3 Video";
519 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
521 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV2 )
523 tk->psz_name = "MSMPEG-4 V2 Video";
524 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
526 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV2 )
528 tk->psz_name = "MSMPEG-4 V1 Video";
529 tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
531 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV1 )
533 tk->psz_name = "Windows Media Video 7";
534 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
536 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV2 )
538 tk->psz_name = "Windows Media Video 8";
539 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
541 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV3 )
543 tk->psz_name = "Windows Media Video 9";
544 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '3' );
546 else if( p_input->p_fmt->i_codec == VLC_CODEC_VC1 )
548 tk->psz_name = "Windows Media Video 9 Advanced Profile";
549 tk->i_fourcc = VLC_FOURCC( 'W', 'V', 'C', '1' );
550 tk->b_extended = true;
552 if( p_fmt->i_extra > 0 )
554 p_codec_extra = malloc( 1 + p_fmt->i_extra );
557 i_codec_extra = 1 + p_fmt->i_extra;
558 p_codec_extra[0] = 0x01;
559 memcpy( &p_codec_extra[1], p_fmt->p_extra, p_fmt->i_extra );
563 else if( p_input->p_fmt->i_codec == VLC_CODEC_H264 )
565 tk->psz_name = "H.264/MPEG-4 AVC";
566 tk->i_fourcc = VLC_FOURCC('h','2','6','4');
570 tk->psz_name = _("Unknown Video");
571 tk->i_fourcc = p_input->p_fmt->i_original_fourcc ?: p_input->p_fmt->i_codec;
573 if( !i_codec_extra && p_fmt->i_extra > 0 )
575 p_codec_extra = malloc( p_fmt->i_extra );
578 i_codec_extra = p_fmt->i_extra;
579 memcpy( p_codec_extra, p_fmt->p_extra, p_fmt->i_extra );
583 tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) + i_codec_extra;
584 tk->p_extra = malloc( tk->i_extra );
587 free( p_codec_extra );
590 bo_init( &bo, tk->p_extra, tk->i_extra );
591 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
592 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
593 bo_add_u8 ( &bo, 0x02 ); /* flags */
594 bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) + i_codec_extra );
595 bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) + i_codec_extra );
596 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
597 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
598 bo_addle_u16( &bo, 1 );
599 bo_addle_u16( &bo, 24 );
600 bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
601 bo_addle_u32( &bo, 0 );
602 bo_addle_u32( &bo, 0 );
603 bo_addle_u32( &bo, 0 );
604 bo_addle_u32( &bo, 0 );
605 bo_addle_u32( &bo, 0 );
606 if( i_codec_extra > 0 )
608 bo_add_mem( &bo, p_codec_extra, i_codec_extra );
609 free( p_codec_extra );
612 if( p_input->p_fmt->i_bitrate > 50000 )
614 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
618 p_sys->i_bitrate += 512000;
620 if( p_sys->i_bitrate_override )
621 p_sys->i_bitrate = p_sys->i_bitrate_override;
625 msg_Err(p_mux, "unhandled track type" );
629 es_format_Copy( &tk->fmt, p_input->p_fmt );
631 vlc_array_append( p_sys->p_tracks, (void *)tk);
632 tk->i_id = vlc_array_index_of_item( p_sys->p_tracks, tk ) + 1;
635 p_sys->b_write_header = true;
640 /*****************************************************************************
642 *****************************************************************************/
643 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
645 /* if bitrate ain't defined in commanline, reduce it when tracks are deleted
647 sout_mux_sys_t *p_sys = p_mux->p_sys;
648 asf_track_t *tk = p_input->p_sys;
649 msg_Dbg( p_mux, "removing input" );
650 if(!p_sys->i_bitrate_override)
652 if( tk->i_cat == AUDIO_ES )
654 if( p_input->p_fmt->i_bitrate > 24000 )
655 p_sys->i_bitrate -= p_input->p_fmt->i_bitrate;
657 p_sys->i_bitrate -= 128000;
659 else if(tk->i_cat == VIDEO_ES )
661 if( p_input->p_fmt->i_bitrate > 50000 )
662 p_sys->i_bitrate -= p_input->p_fmt->i_bitrate;
664 p_sys->i_bitrate -= 512000;
668 vlc_array_remove( p_sys->p_tracks, vlc_array_index_of_item( p_sys->p_tracks, (void *)tk ) );
671 p_sys->b_write_header = true;
675 /*****************************************************************************
677 *****************************************************************************/
678 static int Mux( sout_mux_t *p_mux )
680 sout_mux_sys_t *p_sys = p_mux->p_sys;
682 if( p_sys->b_write_header )
684 block_t *out = asf_header_create( p_mux, true );
686 out->i_flags |= BLOCK_FLAG_HEADER;
687 sout_AccessOutWrite( p_mux->p_access, out );
689 p_sys->b_write_header = false;
694 sout_input_t *p_input;
700 int i_stream = sout_MuxGetStream( p_mux, 1, &i_dts );
703 /* not enough data */
707 if( p_sys->i_dts_first <= VLC_TS_INVALID )
709 p_sys->i_dts_first = i_dts;
711 if( p_sys->i_dts_last < i_dts )
713 p_sys->i_dts_last = i_dts;
716 p_input = p_mux->pp_inputs[i_stream];
717 tk = (asf_track_t*)p_input->p_sys;
719 data = block_FifoGet( p_input->p_fifo );
721 /* Convert VC1 to ASF special format */
722 if( tk->i_fourcc == VLC_FOURCC( 'W', 'V', 'C', '1' ) )
724 while( data->i_buffer >= 4 &&
725 ( data->p_buffer[0] != 0x00 || data->p_buffer[1] != 0x00 ||
726 data->p_buffer[2] != 0x01 ||
727 ( data->p_buffer[3] != 0x0D && data->p_buffer[3] != 0x0C ) ) )
732 if( data->i_buffer >= 4 )
739 if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
741 sout_AccessOutWrite( p_mux->p_access, pk );
748 /****************************************************************************
749 * Asf header construction
750 ****************************************************************************/
752 /****************************************************************************
754 ****************************************************************************/
755 static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
757 p_bo->i_buffer_size = i_size;
759 p_bo->p_buffer = p_buffer;
761 static void bo_add_u8( bo_t *p_bo, uint8_t i )
763 if( p_bo->i_buffer < p_bo->i_buffer_size )
765 p_bo->p_buffer[p_bo->i_buffer] = i;
769 static void bo_addle_u16( bo_t *p_bo, uint16_t i )
771 bo_add_u8( p_bo, i &0xff );
772 bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
774 static void bo_addle_u32( bo_t *p_bo, uint32_t i )
776 bo_addle_u16( p_bo, i &0xffff );
777 bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
779 static void bo_addle_u64( bo_t *p_bo, uint64_t i )
781 bo_addle_u32( p_bo, i &0xffffffff );
782 bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
785 static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
787 int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );
791 memcpy( &p_bo->p_buffer[p_bo->i_buffer], p_mem, i_copy );
793 p_bo->i_buffer += i_size;
796 static void bo_addle_str16( bo_t *bo, const char *str )
798 bo_addle_u16( bo, strlen( str ) + 1 );
801 uint16_t c = (uint8_t)*str++;
802 bo_addle_u16( bo, c );
803 if( c == '\0' ) break;
807 static void bo_addle_str16_nosize( bo_t *bo, const char *str )
811 uint16_t c = (uint8_t)*str++;
812 bo_addle_u16( bo, c );
813 if( c == '\0' ) break;
817 /****************************************************************************
819 ****************************************************************************/
820 static void bo_add_guid( bo_t *p_bo, const guid_t *id )
823 bo_addle_u32( p_bo, id->Data1 );
824 bo_addle_u16( p_bo, id->Data2 );
825 bo_addle_u16( p_bo, id->Data3 );
826 for( i = 0; i < 8; i++ )
828 bo_add_u8( p_bo, id->Data4[i] );
832 static const guid_t asf_object_header_guid =
833 {0x75B22630, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
834 static const guid_t asf_object_data_guid =
835 {0x75B22636, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
836 static const guid_t asf_object_file_properties_guid =
837 {0x8cabdca1, 0xa947, 0x11cf, {0x8e, 0xe4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
838 static const guid_t asf_object_stream_properties_guid =
839 {0xB7DC0791, 0xA9B7, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
840 static const guid_t asf_object_header_extension_guid =
841 {0x5FBF03B5, 0xA92E, 0x11CF, {0x8E, 0xE3, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
842 static const guid_t asf_object_stream_type_audio =
843 {0xF8699E40, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
844 static const guid_t asf_object_stream_type_video =
845 {0xbc19efc0, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
846 static const guid_t asf_guid_audio_conceal_none =
847 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
848 static const guid_t asf_guid_audio_conceal_spread =
849 {0xBFC3CD50, 0x618F, 0x11CF, {0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20}};
850 static const guid_t asf_guid_video_conceal_none =
851 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
852 static const guid_t asf_guid_reserved_1 =
853 {0xABD3D211, 0xA9BA, 0x11cf, {0x8E, 0xE6, 0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65}};
854 static const guid_t asf_object_codec_list_guid =
855 {0x86D15240, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
856 static const guid_t asf_object_codec_list_reserved_guid =
857 {0x86D15241, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
858 static const guid_t asf_object_content_description_guid =
859 {0x75B22633, 0x668E, 0x11CF, {0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}};
860 static const guid_t asf_object_index_guid =
861 {0x33000890, 0xE5B1, 0x11CF, {0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB}};
862 static const guid_t asf_object_metadata_guid =
863 {0xC5F8CBEA, 0x5BAF, 0x4877, {0x84, 0x67, 0xAA, 0x8C, 0x44, 0xFA, 0x4C, 0xCA}};
864 static const guid_t asf_object_extended_stream_properties_guid =
865 {0x14E6A5CB, 0xC672, 0x4332, {0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A}};
867 /****************************************************************************
869 ****************************************************************************/
870 static void asf_chunk_add( bo_t *bo,
871 int i_type, int i_len, int i_flags, int i_seq )
873 bo_addle_u16( bo, i_type );
874 bo_addle_u16( bo, i_len + 8 );
875 bo_addle_u32( bo, i_seq );
876 bo_addle_u16( bo, i_flags );
877 bo_addle_u16( bo, i_len + 8 );
880 static block_t *asf_header_create( sout_mux_t *p_mux, bool b_broadcast )
882 sout_mux_sys_t *p_sys = p_mux->p_sys;
884 mtime_t i_duration = 0;
885 int i_size, i_header_ext_size, i;
886 int i_ci_size, i_cm_size = 0, i_cd_size = 0;
891 msg_Dbg( p_mux, "Asf muxer creating header" );
893 if( p_sys->i_dts_first > VLC_TS_INVALID )
895 i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
896 if( i_duration < 0 ) i_duration = 0;
899 /* calculate header size */
902 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
904 tk = vlc_array_item_at_index( p_sys->p_tracks, i );
905 /* update also track-id */
908 i_size += 78 + tk->i_extra;
909 i_ci_size += 8 + 2 * strlen( tk->psz_name );
910 if( tk->i_cat == AUDIO_ES ) i_ci_size += 4;
911 else if( tk->i_cat == VIDEO_ES ) i_ci_size += 6;
913 /* Error correction data field */
914 if( tk->b_audio_correction ) i_size += 8;
917 /* size of the content description object */
918 if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
919 *p_sys->psz_comment || *p_sys->psz_rating )
921 i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
922 strlen( p_sys->psz_author ) + 1 +
923 strlen( p_sys->psz_copyright ) + 1 +
924 strlen( p_sys->psz_comment ) + 1 +
925 strlen( p_sys->psz_rating ) + 1 );
928 i_header_ext_size = 46;
930 /* size of the metadata object */
931 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
933 const asf_track_t *p_track = vlc_array_item_at_index( p_sys->p_tracks, i );
934 if( p_track->i_cat == VIDEO_ES && p_track->fmt.video.i_aspect != 0 )
936 i_cm_size = 26 + 2 * (16 + 2 * sizeof("AspectRatio?"));
939 if( p_track->b_extended )
940 i_header_ext_size += 88;
944 i_header_ext_size += i_cm_size;
946 i_size += i_ci_size + i_cd_size + i_header_ext_size ;
948 if( p_sys->b_asf_http )
950 out = block_New( p_mux, i_size + 50 + 12 );
951 bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
952 asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
956 out = block_New( p_mux, i_size + 50 );
957 bo_init( &bo, out->p_buffer, i_size + 50 );
961 bo_add_guid ( &bo, &asf_object_header_guid );
962 bo_addle_u64( &bo, i_size );
963 bo_addle_u32( &bo, 2 + vlc_array_count( p_sys->p_tracks ) + 1 +
964 (i_cd_size ? 1 : 0) + (i_cm_size ? 1 : 0) );
965 bo_add_u8 ( &bo, 1 );
966 bo_add_u8 ( &bo, 2 );
970 /* file properties */
971 bo_add_guid ( &bo, &asf_object_file_properties_guid );
972 bo_addle_u64( &bo, 104 );
973 bo_add_guid ( &bo, &p_sys->fid );
974 bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
975 p_sys->i_packet_size ); /* file size */
976 bo_addle_u64( &bo, 0 ); /* creation date */
977 bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
978 bo_addle_u64( &bo, i_duration * 10 ); /* play duration (100ns) */
979 bo_addle_u64( &bo, i_duration * 10 ); /* send duration (100ns) */
980 bo_addle_u64( &bo, p_sys->i_preroll_time ); /* preroll duration (ms) */
981 bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x02 /* seekable */ ); /* flags */
982 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size min */
983 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size max */
984 bo_addle_u32( &bo, p_sys->i_bitrate ); /* maxbitrate */
986 /* header extension */
987 bo_add_guid ( &bo, &asf_object_header_extension_guid );
988 bo_addle_u64( &bo, i_header_ext_size );
989 bo_add_guid ( &bo, &asf_guid_reserved_1 );
990 bo_addle_u16( &bo, 6 );
991 bo_addle_u32( &bo, i_header_ext_size - 46 );
993 /* extended stream properties */
994 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
996 const asf_track_t *p_track = vlc_array_item_at_index( p_sys->p_tracks, i );
997 const es_format_t *p_fmt = &p_track->fmt;
999 if( !p_track->b_extended )
1002 uint64_t i_avg_duration = 0;
1003 if( p_fmt->i_cat == VIDEO_ES &&
1004 p_fmt->video.i_frame_rate > 0 && p_fmt->video.i_frame_rate_base > 0 )
1005 i_avg_duration = ( INT64_C(10000000) * p_fmt->video.i_frame_rate_base +
1006 p_fmt->video.i_frame_rate/2 ) / p_fmt->video.i_frame_rate;
1008 bo_add_guid ( &bo, &asf_object_extended_stream_properties_guid );
1009 bo_addle_u64( &bo, 88 );
1010 bo_addle_u64( &bo, 0 );
1011 bo_addle_u64( &bo, 0 );
1012 bo_addle_u32( &bo, p_fmt->i_bitrate ); /* Bitrate */
1013 bo_addle_u32( &bo, 0 ); /* Buffer size */
1014 bo_addle_u32( &bo, 0 ); /* Initial buffer fullness */
1015 bo_addle_u32( &bo, p_fmt->i_bitrate ); /* Alternate Bitrate */
1016 bo_addle_u32( &bo, 0 ); /* Alternate Buffer size */
1017 bo_addle_u32( &bo, 0 ); /* Alternate Initial buffer fullness */
1018 bo_addle_u32( &bo, 0 ); /* Maximum object size (0 = unkown) */
1019 bo_addle_u32( &bo, 0x02 ); /* Flags (seekable) */
1020 bo_addle_u16( &bo, p_track->i_id ); /* Stream number */
1021 bo_addle_u16( &bo, 0 ); /* Stream language index */
1022 bo_addle_u64( &bo, i_avg_duration ); /* Average time per frame */
1023 bo_addle_u16( &bo, 0 ); /* Stream name count */
1024 bo_addle_u16( &bo, 0 ); /* Payload extension system count */
1027 /* metadata object (part of header extension) */
1030 int64_t i_num, i_den;
1031 unsigned int i_dst_num, i_dst_den;
1035 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1037 tk = vlc_array_item_at_index( p_sys->p_tracks, i );
1038 if( tk->i_cat == VIDEO_ES ) break;
1040 assert( tk != NULL );
1042 i_num = tk->fmt.video.i_aspect *
1043 (int64_t)tk->fmt.video.i_height;
1044 i_den = VOUT_ASPECT_FACTOR * tk->fmt.video.i_width;
1045 vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
1047 msg_Dbg( p_mux, "pixel aspect-ratio: %i/%i", i_dst_num, i_dst_den );
1049 bo_add_guid ( &bo, &asf_object_metadata_guid );
1050 bo_addle_u64( &bo, i_cm_size );
1051 bo_addle_u16( &bo, 2 ); /* description records count */
1052 /* 1st description record */
1053 bo_addle_u16( &bo, 0 ); /* reserved */
1054 bo_addle_u16( &bo, tk->i_id ); /* stream number (0 for the whole file) */
1055 bo_addle_u16( &bo, 2 * sizeof("AspectRatioX") ); /* name length */
1056 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
1057 bo_addle_u32( &bo, 4 ); /* data length */
1058 bo_addle_str16_nosize( &bo, "AspectRatioX" );
1059 bo_addle_u32( &bo, i_dst_num ); /* data */
1060 /* 2nd description record */
1061 bo_addle_u16( &bo, 0 ); /* reserved */
1062 bo_addle_u16( &bo, tk->i_id ); /* stream number (0 for the whole file) */
1063 bo_addle_u16( &bo, 2 * sizeof("AspectRatioY") ); /* name length */
1064 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
1065 bo_addle_u32( &bo, 4 ); /* data length */
1066 bo_addle_str16_nosize( &bo, "AspectRatioY" );
1067 bo_addle_u32( &bo, i_dst_den ); /* data */
1070 /* content description header */
1073 bo_add_guid ( &bo, &asf_object_content_description_guid );
1074 bo_addle_u64( &bo, i_cd_size );
1075 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
1076 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
1077 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
1078 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
1079 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );
1081 bo_addle_str16_nosize( &bo, p_sys->psz_title );
1082 bo_addle_str16_nosize( &bo, p_sys->psz_author );
1083 bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
1084 bo_addle_str16_nosize( &bo, p_sys->psz_comment );
1085 bo_addle_str16_nosize( &bo, p_sys->psz_rating );
1088 /* stream properties */
1089 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1091 tk = vlc_array_item_at_index( p_sys->p_tracks, i);
1093 bo_add_guid ( &bo, &asf_object_stream_properties_guid );
1094 bo_addle_u64( &bo, 78 + tk->i_extra + (tk->b_audio_correction ? 8:0) );
1096 if( tk->i_cat == AUDIO_ES )
1098 bo_add_guid( &bo, &asf_object_stream_type_audio );
1099 if( tk->b_audio_correction )
1100 bo_add_guid( &bo, &asf_guid_audio_conceal_spread );
1102 bo_add_guid( &bo, &asf_guid_audio_conceal_none );
1104 else if( tk->i_cat == VIDEO_ES )
1106 bo_add_guid( &bo, &asf_object_stream_type_video );
1107 bo_add_guid( &bo, &asf_guid_video_conceal_none );
1109 bo_addle_u64( &bo, 0 ); /* time offset */
1110 bo_addle_u32( &bo, tk->i_extra );
1111 /* correction data length */
1112 bo_addle_u32( &bo, tk->b_audio_correction ? 8 : 0 );
1113 bo_addle_u16( &bo, tk->i_id ); /* stream number */
1114 bo_addle_u32( &bo, 0 );
1115 bo_add_mem ( &bo, tk->p_extra, tk->i_extra );
1117 /* Error correction data field */
1118 if( tk->b_audio_correction )
1120 bo_add_u8( &bo, 0x1 ); /* span */
1121 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual packet length */
1122 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual chunck length */
1123 bo_addle_u16( &bo, 1 ); /* silence length */
1124 bo_add_u8( &bo, 0x0 ); /* data */
1129 bo_add_guid ( &bo, &asf_object_codec_list_guid );
1130 bo_addle_u64( &bo, i_ci_size );
1131 bo_add_guid ( &bo, &asf_object_codec_list_reserved_guid );
1132 bo_addle_u32( &bo, vlc_array_count( p_sys->p_tracks ) );
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 if( tk->i_cat == VIDEO_ES ) bo_addle_u16( &bo, 1 /* video */ );
1138 else if( tk->i_cat == AUDIO_ES ) bo_addle_u16( &bo, 2 /* audio */ );
1139 else bo_addle_u16( &bo, 0xFFFF /* unknown */ );
1141 bo_addle_str16( &bo, tk->psz_name );
1142 bo_addle_u16( &bo, 0 );
1143 if( tk->i_cat == AUDIO_ES )
1145 bo_addle_u16( &bo, 2 );
1146 bo_addle_u16( &bo, tk->i_tag );
1148 else if( tk->i_cat == VIDEO_ES )
1150 bo_addle_u16( &bo, 4 );
1151 bo_add_mem ( &bo, (uint8_t*)&tk->i_fourcc, 4 );
1156 bo_add_guid ( &bo, &asf_object_data_guid );
1157 bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
1158 bo_add_guid ( &bo, &p_sys->fid );
1159 bo_addle_u64( &bo, p_sys->i_packet_count );
1160 bo_addle_u16( &bo, 0x101 );
1165 /****************************************************************************
1167 ****************************************************************************/
1168 static block_t *asf_packet_flush( sout_mux_t *p_mux )
1170 sout_mux_sys_t *p_sys = p_mux->p_sys;
1171 int i_pad, i_preheader = p_sys->b_asf_http ? 12 : 0;
1175 if( !p_sys->pk ) return 0;
1177 i_pad = p_sys->i_packet_size - p_sys->i_pk_used;
1178 memset( p_sys->pk->p_buffer + p_sys->i_pk_used, 0, i_pad );
1180 bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );
1182 if( p_sys->b_asf_http )
1183 asf_chunk_add( &bo, 0x4424, p_sys->i_packet_size, 0x0, p_sys->i_seq++);
1185 bo_add_u8 ( &bo, 0x82 );
1186 bo_addle_u16( &bo, 0 );
1187 bo_add_u8( &bo, 0x11 );
1188 bo_add_u8( &bo, 0x5d );
1189 bo_addle_u16( &bo, i_pad );
1190 bo_addle_u32( &bo, (p_sys->i_pk_dts - p_sys->i_dts_first) / 1000 +
1191 p_sys->i_preroll_time );
1192 bo_addle_u16( &bo, 0 /* data->i_length */ );
1193 bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );
1198 p_sys->i_packet_count++;
1203 static block_t *asf_packet_create( sout_mux_t *p_mux,
1204 asf_track_t *tk, block_t *data )
1206 sout_mux_sys_t *p_sys = p_mux->p_sys;
1208 int i_data = data->i_buffer;
1210 uint8_t *p_data= data->p_buffer;
1211 block_t *first = NULL, **last = &first;
1212 int i_preheader = p_sys->b_asf_http ? 12 : 0;
1214 while( i_pos < i_data )
1219 if( p_sys->pk == NULL )
1221 p_sys->pk = block_New( p_mux, p_sys->i_packet_size + i_preheader );
1222 /* reserve 14 bytes for the packet header */
1223 p_sys->i_pk_used = 14 + i_preheader;
1224 p_sys->i_pk_frame = 0;
1225 p_sys->i_pk_dts = data->i_dts;
1228 bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
1229 p_sys->i_packet_size - p_sys->i_pk_used );
1231 /* add payload (header size = 17) */
1232 i_payload = __MIN( i_data - i_pos,
1233 p_sys->i_packet_size - p_sys->i_pk_used - 17 );
1235 if( tk->b_audio_correction && p_sys->i_pk_frame && i_payload < i_data )
1237 /* Don't know why yet but WMP doesn't like splitted WMA packets */
1238 *last = asf_packet_flush( p_mux );
1239 last = &(*last)->p_next;
1243 bo_add_u8 ( &bo, !(data->i_flags & BLOCK_FLAG_TYPE_P ||
1244 data->i_flags & BLOCK_FLAG_TYPE_B) ?
1245 0x80 | tk->i_id : tk->i_id );
1246 bo_add_u8 ( &bo, tk->i_sequence );
1247 bo_addle_u32( &bo, i_pos );
1248 bo_add_u8 ( &bo, 0x08 ); /* flags */
1249 bo_addle_u32( &bo, i_data );
1250 bo_addle_u32( &bo, (data->i_dts - p_sys->i_dts_first) / 1000 +
1251 p_sys->i_preroll_time );
1252 bo_addle_u16( &bo, i_payload );
1253 bo_add_mem ( &bo, &p_data[i_pos], i_payload );
1255 p_sys->i_pk_used += 17 + i_payload;
1257 p_sys->i_pk_frame++;
1259 if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1261 /* Not enough data for another payload, flush the packet */
1262 *last = asf_packet_flush( p_mux );
1263 last = &(*last)->p_next;
1268 block_Release( data );
1273 static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1275 sout_mux_sys_t *p_sys = p_mux->p_sys;
1277 block_t *out = NULL;
1280 if( p_sys->b_asf_http )
1282 out = block_New( p_mux, 12 );
1283 bo_init( &bo, out->p_buffer, 12 );
1284 asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
1289 out = block_New( p_mux, 56 );
1290 bo_init( &bo, out->p_buffer, 56 );
1291 bo_add_guid ( &bo, &asf_object_index_guid );
1292 bo_addle_u64( &bo, 56 );
1293 bo_add_guid ( &bo, &p_sys->fid );
1294 bo_addle_u64( &bo, 10000000 );
1295 bo_addle_u32( &bo, 5 );
1296 bo_addle_u32( &bo, 0 );