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>
45 #define MAX_ASF_TRACKS 128
46 #define ASF_DATA_PACKET_SIZE 4096 // deprecated -- added sout-asf-packet-size
48 /*****************************************************************************
50 *****************************************************************************/
51 static int Open ( vlc_object_t * );
52 static void Close ( vlc_object_t * );
54 #define SOUT_CFG_PREFIX "sout-asf-"
56 #define TITLE_TEXT N_("Title")
57 #define TITLE_LONGTEXT N_("Title to put in ASF comments." )
58 #define AUTHOR_TEXT N_("Author")
59 #define AUTHOR_LONGTEXT N_("Author to put in ASF comments." )
60 #define COPYRIGHT_TEXT N_("Copyright")
61 #define COPYRIGHT_LONGTEXT N_("Copyright string to put in ASF comments." )
62 #define COMMENT_TEXT N_("Comment")
63 #define COMMENT_LONGTEXT N_("Comment to put in ASF comments." )
64 #define RATING_TEXT N_("Rating")
65 #define RATING_LONGTEXT N_("\"Rating\" to put in ASF comments." )
66 #define PACKETSIZE_TEXT N_("Packet Size")
67 #define PACKETSIZE_LONGTEXT N_("ASF packet size -- default is 4096 bytes")
68 #define BITRATE_TEXT N_("Bitrate override")
69 #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")
73 set_description( N_("ASF muxer") )
74 set_category( CAT_SOUT )
75 set_subcategory( SUBCAT_SOUT_MUX )
76 set_shortname( "ASF" )
78 set_capability( "sout mux", 5 )
80 add_shortcut( "asfh" )
81 set_callbacks( Open, Close )
83 add_string( SOUT_CFG_PREFIX "title", "", NULL, TITLE_TEXT, TITLE_LONGTEXT,
85 add_string( SOUT_CFG_PREFIX "author", "", NULL, AUTHOR_TEXT,
86 AUTHOR_LONGTEXT, true )
87 add_string( SOUT_CFG_PREFIX "copyright","", NULL, COPYRIGHT_TEXT,
88 COPYRIGHT_LONGTEXT, true )
89 add_string( SOUT_CFG_PREFIX "comment", "", NULL, COMMENT_TEXT,
90 COMMENT_LONGTEXT, true )
91 add_string( SOUT_CFG_PREFIX "rating", "", NULL, RATING_TEXT,
92 RATING_LONGTEXT, true )
93 add_integer( SOUT_CFG_PREFIX "packet-size", 4096, NULL, PACKETSIZE_TEXT,
94 PACKETSIZE_LONGTEXT, true )
95 add_integer( SOUT_CFG_PREFIX "bitrate-override", 0, NULL, BITRATE_TEXT,
96 BITRATE_LONGTEXT, true )
100 /*****************************************************************************
102 *****************************************************************************/
103 static const char *const ppsz_sout_options[] = {
104 "title", "author", "copyright", "comment", "rating", NULL
107 static int Control ( sout_mux_t *, int, va_list );
108 static int AddStream( sout_mux_t *, sout_input_t * );
109 static int DelStream( sout_mux_t *, sout_input_t * );
110 static int Mux ( sout_mux_t * );
117 /* codec information */
118 uint16_t i_tag; /* for audio */
119 vlc_fourcc_t i_fourcc; /* for video */
120 const char *psz_name; /* codec name */
121 int i_blockalign; /* for audio only */
122 bool b_audio_correction;
134 struct sout_mux_sys_t
136 guid_t fid; /* file id */
138 int64_t i_packet_count;
141 mtime_t i_preroll_time;
143 int64_t i_bitrate_override;
145 vlc_array_t *p_tracks;
165 static block_t *asf_header_create( sout_mux_t *, bool );
166 static block_t *asf_packet_create( sout_mux_t *, asf_track_t *, block_t * );
167 static block_t *asf_stream_end_create( sout_mux_t *);
168 static block_t *asf_packet_flush( sout_mux_t * );
178 static void bo_init ( bo_t *, uint8_t *, int );
179 static void bo_add_u8 ( bo_t *, uint8_t );
180 static void bo_addle_u16( bo_t *, uint16_t );
181 static void bo_addle_u32( bo_t *, uint32_t );
182 static void bo_addle_u64( bo_t *, uint64_t );
183 static void bo_add_mem ( bo_t *, uint8_t *, int );
185 static void bo_addle_str16( bo_t *, const char * );
187 /*****************************************************************************
189 *****************************************************************************/
190 static int Open( vlc_object_t *p_this )
192 sout_mux_t *p_mux = (sout_mux_t*)p_this;
193 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 = var_InheritInteger( p_mux, "sout-asf-packet-size" );
224 p_sys->i_bitrate_override = var_InheritInteger( 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 p_sys->fid.Data1 = 0xbabac001;
232 vlc_rand_bytes(&p_sys->fid.Data2, sizeof(p_sys->fid.Data2));
233 vlc_rand_bytes(&p_sys->fid.Data3, sizeof(p_sys->fid.Data3));
234 vlc_rand_bytes(p_sys->fid.Data4, sizeof(p_sys->fid.Data4));
237 p_sys->psz_title = var_GetString( p_mux, SOUT_CFG_PREFIX "title" );
238 p_sys->psz_author = var_GetString( p_mux, SOUT_CFG_PREFIX "author" );
239 p_sys->psz_copyright = var_GetString( p_mux, SOUT_CFG_PREFIX "copyright" );
240 p_sys->psz_comment = var_GetString( p_mux, SOUT_CFG_PREFIX "comment" );
241 p_sys->psz_rating = var_GetString( p_mux, SOUT_CFG_PREFIX "rating" );
243 msg_Dbg( p_mux, "meta data: title='%s', author='%s', copyright='%s', "
244 "comment='%s', rating='%s'",
245 p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
246 p_sys->psz_comment, p_sys->psz_rating );
251 /*****************************************************************************
253 *****************************************************************************/
254 static void Close( vlc_object_t * p_this )
256 sout_mux_t *p_mux = (sout_mux_t*)p_this;
257 sout_mux_sys_t *p_sys = p_mux->p_sys;
261 msg_Dbg( p_mux, "Asf muxer closed" );
263 /* Flush last packet if any */
264 if( (out = asf_packet_flush( p_mux ) ) )
266 sout_AccessOutWrite( p_mux->p_access, out );
269 if( ( out = asf_stream_end_create( p_mux ) ) )
271 sout_AccessOutWrite( p_mux->p_access, out );
275 if( sout_AccessOutSeek( p_mux->p_access, 0 ) == VLC_SUCCESS )
277 out = asf_header_create( p_mux, false );
278 sout_AccessOutWrite( p_mux->p_access, out );
282 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
284 asf_track_t *track = (asf_track_t *)vlc_array_item_at_index( p_sys->p_tracks, i );
285 free( track->p_extra );
286 es_format_Clean( &track->fmt );
289 vlc_array_clear( p_sys->p_tracks );
291 vlc_array_destroy( p_sys->p_tracks );
293 free( p_sys->psz_title );
294 free( p_sys->psz_author );
295 free( p_sys->psz_copyright );
296 free( p_sys->psz_comment );
297 free( p_sys->psz_rating );
301 /*****************************************************************************
303 *****************************************************************************/
304 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
306 sout_mux_sys_t *p_sys = p_mux->p_sys;
312 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
313 pb_bool = (bool*)va_arg( args, bool * );
314 if( p_sys->b_asf_http ) *pb_bool = true;
315 else *pb_bool = false;
318 case MUX_GET_ADD_STREAM_WAIT:
319 pb_bool = (bool*)va_arg( args, bool * );
324 ppsz = (char**)va_arg( args, char ** );
325 if( p_sys->b_asf_http )
326 *ppsz = strdup( "video/x-ms-asf-stream" );
328 *ppsz = strdup( "video/x-ms-asf" );
336 /*****************************************************************************
338 *****************************************************************************/
339 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
341 sout_mux_sys_t *p_sys = p_mux->p_sys;
345 msg_Dbg( p_mux, "adding input" );
346 if( vlc_array_count( p_sys->p_tracks ) >= MAX_ASF_TRACKS )
348 msg_Dbg( p_mux, "cannot add this track (too much tracks)" );
352 tk = p_input->p_sys = malloc( sizeof( asf_track_t ) );
353 memset( tk, 0, sizeof( *tk ) );
354 tk->i_cat = p_input->p_fmt->i_cat;
356 tk->b_audio_correction = 0;
357 tk->b_extended = false;
363 int i_blockalign = p_input->p_fmt->audio.i_blockalign;
364 int i_bitspersample = p_input->p_fmt->audio.i_bitspersample;
367 switch( p_input->p_fmt->i_codec )
370 tk->i_tag = WAVE_FORMAT_A52;
371 tk->psz_name = "A/52";
375 tk->i_tag = WAVE_FORMAT_AAC;
376 tk->psz_name = "MPEG-4 Audio";
381 tk->psz_name = "MPEG Audio Layer 3";
382 tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
388 tk->psz_name = "MPEG Audio Layer 1/2";
389 tk->i_tag = WAVE_FORMAT_MPEG;
396 tk->psz_name = "Windows Media Audio v1";
397 tk->i_tag = WAVE_FORMAT_WMA1;
398 tk->b_audio_correction = true;
401 tk->psz_name= "Windows Media Audio (v2) 7, 8 and 9 Series";
402 tk->i_tag = WAVE_FORMAT_WMA2;
403 tk->b_audio_correction = true;
406 tk->psz_name = "Windows Media Audio 9 Professional";
407 tk->i_tag = WAVE_FORMAT_WMAP;
408 tk->b_audio_correction = true;
411 tk->psz_name = "Windows Media Audio 9 Lossless";
412 tk->i_tag = WAVE_FORMAT_WMAL;
413 tk->b_audio_correction = true;
417 tk->psz_name = "Raw audio 8bits";
418 tk->i_tag = WAVE_FORMAT_PCM;
419 i_blockalign= p_input->p_fmt->audio.i_channels;
423 tk->psz_name = "Raw audio 16bits";
424 tk->i_tag = WAVE_FORMAT_PCM;
425 i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
426 i_bitspersample = 16;
429 tk->psz_name = "Raw audio 24bits";
430 tk->i_tag = WAVE_FORMAT_PCM;
431 i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
432 i_bitspersample = 24;
435 tk->psz_name = "Raw audio 32bits";
436 tk->i_tag = WAVE_FORMAT_PCM;
437 i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
438 i_bitspersample = 32;
444 tk->i_extra = sizeof( WAVEFORMATEX ) +
445 p_input->p_fmt->i_extra + i_extra;
446 tk->p_extra = malloc( tk->i_extra );
449 bo_init( &bo, tk->p_extra, tk->i_extra );
450 bo_addle_u16( &bo, tk->i_tag );
451 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
452 bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
453 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
454 bo_addle_u16( &bo, i_blockalign );
455 tk->i_blockalign = i_blockalign;
456 bo_addle_u16( &bo, i_bitspersample );
457 if( p_input->p_fmt->i_extra > 0 )
459 bo_addle_u16( &bo, p_input->p_fmt->i_extra );
460 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
461 p_input->p_fmt->i_extra );
465 bo_addle_u16( &bo, i_extra );
466 if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
468 msg_Dbg( p_mux, "adding mp3 header" );
469 bo_addle_u16( &bo, 1 ); /* wId */
470 bo_addle_u32( &bo, 2 ); /* fdwFlags */
471 bo_addle_u16( &bo, 1152 ); /* nBlockSize */
472 bo_addle_u16( &bo, 1 ); /* nFramesPerBlock */
473 bo_addle_u16( &bo, 1393 ); /* nCodecDelay */
475 else if( tk->i_tag == WAVE_FORMAT_MPEG )
477 msg_Dbg( p_mux, "adding mp2 header" );
478 bo_addle_u16( &bo, 2 ); /* fwHeadLayer */
479 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
480 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
481 bo_addle_u16( &bo, 0 ); /* fwHeadModeExt */
482 bo_addle_u16( &bo, 1 ); /* wHeadEmphasis */
483 bo_addle_u16( &bo, 16 ); /* fwHeadFlags */
484 bo_addle_u32( &bo, 0 ); /* dwPTSLow */
485 bo_addle_u32( &bo, 0 ); /* dwPTSHigh */
489 if( p_input->p_fmt->i_bitrate > 24000 )
491 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
495 p_sys->i_bitrate += 128000;
497 if (p_sys->i_bitrate_override)
498 p_sys->i_bitrate = p_sys->i_bitrate_override;
503 const es_format_t *p_fmt = p_input->p_fmt;
504 uint8_t *p_codec_extra = NULL;
505 int i_codec_extra = 0;
507 if( p_input->p_fmt->i_codec == VLC_CODEC_MP4V )
509 tk->psz_name = "MPEG-4 Video";
510 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
512 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV3 )
514 tk->psz_name = "MSMPEG-4 V3 Video";
515 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
517 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV2 )
519 tk->psz_name = "MSMPEG-4 V2 Video";
520 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
522 else if( p_input->p_fmt->i_codec == VLC_CODEC_DIV2 )
524 tk->psz_name = "MSMPEG-4 V1 Video";
525 tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
527 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV1 )
529 tk->psz_name = "Windows Media Video 7";
530 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
532 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV2 )
534 tk->psz_name = "Windows Media Video 8";
535 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
537 else if( p_input->p_fmt->i_codec == VLC_CODEC_WMV3 )
539 tk->psz_name = "Windows Media Video 9";
540 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '3' );
542 else if( p_input->p_fmt->i_codec == VLC_CODEC_VC1 )
544 tk->psz_name = "Windows Media Video 9 Advanced Profile";
545 tk->i_fourcc = VLC_FOURCC( 'W', 'V', 'C', '1' );
546 tk->b_extended = true;
548 if( p_fmt->i_extra > 0 )
550 p_codec_extra = malloc( 1 + p_fmt->i_extra );
553 i_codec_extra = 1 + p_fmt->i_extra;
554 p_codec_extra[0] = 0x01;
555 memcpy( &p_codec_extra[1], p_fmt->p_extra, p_fmt->i_extra );
559 else if( p_input->p_fmt->i_codec == VLC_CODEC_H264 )
561 tk->psz_name = "H.264/MPEG-4 AVC";
562 tk->i_fourcc = VLC_FOURCC('h','2','6','4');
566 tk->psz_name = _("Unknown Video");
567 tk->i_fourcc = p_input->p_fmt->i_original_fourcc ?: p_input->p_fmt->i_codec;
569 if( !i_codec_extra && p_fmt->i_extra > 0 )
571 p_codec_extra = malloc( p_fmt->i_extra );
574 i_codec_extra = p_fmt->i_extra;
575 memcpy( p_codec_extra, p_fmt->p_extra, p_fmt->i_extra );
579 tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) + i_codec_extra;
580 tk->p_extra = malloc( tk->i_extra );
583 free( p_codec_extra );
586 bo_init( &bo, tk->p_extra, tk->i_extra );
587 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
588 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
589 bo_add_u8 ( &bo, 0x02 ); /* flags */
590 bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) + i_codec_extra );
591 bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) + i_codec_extra );
592 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
593 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
594 bo_addle_u16( &bo, 1 );
595 bo_addle_u16( &bo, 24 );
596 bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
597 bo_addle_u32( &bo, 0 );
598 bo_addle_u32( &bo, 0 );
599 bo_addle_u32( &bo, 0 );
600 bo_addle_u32( &bo, 0 );
601 bo_addle_u32( &bo, 0 );
602 if( i_codec_extra > 0 )
604 bo_add_mem( &bo, p_codec_extra, i_codec_extra );
605 free( p_codec_extra );
608 if( p_input->p_fmt->i_bitrate > 50000 )
610 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
614 p_sys->i_bitrate += 512000;
616 if( p_sys->i_bitrate_override )
617 p_sys->i_bitrate = p_sys->i_bitrate_override;
621 msg_Err(p_mux, "unhandled track type" );
625 es_format_Copy( &tk->fmt, p_input->p_fmt );
627 vlc_array_append( p_sys->p_tracks, (void *)tk);
628 tk->i_id = vlc_array_index_of_item( p_sys->p_tracks, tk ) + 1;
631 if( p_sys->b_asf_http )
632 p_sys->b_write_header = true;
637 /*****************************************************************************
639 *****************************************************************************/
640 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
642 /* if bitrate ain't defined in commanline, reduce it when tracks are deleted
644 sout_mux_sys_t *p_sys = p_mux->p_sys;
645 asf_track_t *tk = p_input->p_sys;
646 msg_Dbg( p_mux, "removing input" );
647 if(!p_sys->i_bitrate_override)
649 if( tk->i_cat == AUDIO_ES )
651 if( p_input->p_fmt->i_bitrate > 24000 )
652 p_sys->i_bitrate -= p_input->p_fmt->i_bitrate;
654 p_sys->i_bitrate -= 128000;
656 else if(tk->i_cat == VIDEO_ES )
658 if( p_input->p_fmt->i_bitrate > 50000 )
659 p_sys->i_bitrate -= p_input->p_fmt->i_bitrate;
661 p_sys->i_bitrate -= 512000;
665 if( p_sys->b_asf_http )
667 vlc_array_remove( p_sys->p_tracks, vlc_array_index_of_item( p_sys->p_tracks, (void *)tk ) );
668 p_sys->b_write_header = true;
673 /*****************************************************************************
675 *****************************************************************************/
676 static int Mux( sout_mux_t *p_mux )
678 sout_mux_sys_t *p_sys = p_mux->p_sys;
680 if( p_sys->b_write_header )
682 block_t *out = asf_header_create( p_mux, true );
684 out->i_flags |= BLOCK_FLAG_HEADER;
685 sout_AccessOutWrite( p_mux->p_access, out );
687 p_sys->b_write_header = false;
692 sout_input_t *p_input;
698 int i_stream = sout_MuxGetStream( p_mux, 1, &i_dts );
701 /* not enough data */
705 if( p_sys->i_dts_first <= VLC_TS_INVALID )
707 p_sys->i_dts_first = i_dts;
709 if( p_sys->i_dts_last < i_dts )
711 p_sys->i_dts_last = i_dts;
714 p_input = p_mux->pp_inputs[i_stream];
715 tk = (asf_track_t*)p_input->p_sys;
717 data = block_FifoGet( p_input->p_fifo );
719 /* Convert VC1 to ASF special format */
720 if( tk->i_fourcc == VLC_FOURCC( 'W', 'V', 'C', '1' ) )
722 while( data->i_buffer >= 4 &&
723 ( data->p_buffer[0] != 0x00 || data->p_buffer[1] != 0x00 ||
724 data->p_buffer[2] != 0x01 ||
725 ( data->p_buffer[3] != 0x0D && data->p_buffer[3] != 0x0C ) ) )
730 if( data->i_buffer >= 4 )
737 if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
739 sout_AccessOutWrite( p_mux->p_access, pk );
746 /****************************************************************************
747 * Asf header construction
748 ****************************************************************************/
750 /****************************************************************************
752 ****************************************************************************/
753 static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
755 p_bo->i_buffer_size = i_size;
757 p_bo->p_buffer = p_buffer;
759 static void bo_add_u8( bo_t *p_bo, uint8_t i )
761 if( p_bo->i_buffer < p_bo->i_buffer_size )
763 p_bo->p_buffer[p_bo->i_buffer] = i;
767 static void bo_addle_u16( bo_t *p_bo, uint16_t i )
769 bo_add_u8( p_bo, i &0xff );
770 bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
772 static void bo_addle_u32( bo_t *p_bo, uint32_t i )
774 bo_addle_u16( p_bo, i &0xffff );
775 bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
777 static void bo_addle_u64( bo_t *p_bo, uint64_t i )
779 bo_addle_u32( p_bo, i &0xffffffff );
780 bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
783 static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
785 int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );
789 memcpy( &p_bo->p_buffer[p_bo->i_buffer], p_mem, i_copy );
791 p_bo->i_buffer += i_size;
794 static void bo_addle_str16( bo_t *bo, const char *str )
796 bo_addle_u16( bo, strlen( str ) + 1 );
799 uint16_t c = (uint8_t)*str++;
800 bo_addle_u16( bo, c );
801 if( c == '\0' ) break;
805 static void bo_addle_str16_nosize( bo_t *bo, const char *str )
809 uint16_t c = (uint8_t)*str++;
810 bo_addle_u16( bo, c );
811 if( c == '\0' ) break;
815 /****************************************************************************
817 ****************************************************************************/
818 static void bo_add_guid( bo_t *p_bo, const guid_t *id )
821 bo_addle_u32( p_bo, id->Data1 );
822 bo_addle_u16( p_bo, id->Data2 );
823 bo_addle_u16( p_bo, id->Data3 );
824 for( i = 0; i < 8; i++ )
826 bo_add_u8( p_bo, id->Data4[i] );
830 static const guid_t asf_object_header_guid =
831 {0x75B22630, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
832 static const guid_t asf_object_data_guid =
833 {0x75B22636, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
834 static const guid_t asf_object_file_properties_guid =
835 {0x8cabdca1, 0xa947, 0x11cf, {0x8e, 0xe4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
836 static const guid_t asf_object_stream_properties_guid =
837 {0xB7DC0791, 0xA9B7, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
838 static const guid_t asf_object_header_extension_guid =
839 {0x5FBF03B5, 0xA92E, 0x11CF, {0x8E, 0xE3, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
840 static const guid_t asf_object_stream_type_audio =
841 {0xF8699E40, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
842 static const guid_t asf_object_stream_type_video =
843 {0xbc19efc0, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
844 static const guid_t asf_guid_audio_conceal_none =
845 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
846 static const guid_t asf_guid_audio_conceal_spread =
847 {0xBFC3CD50, 0x618F, 0x11CF, {0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20}};
848 static const guid_t asf_guid_video_conceal_none =
849 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
850 static const guid_t asf_guid_reserved_1 =
851 {0xABD3D211, 0xA9BA, 0x11cf, {0x8E, 0xE6, 0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65}};
852 static const guid_t asf_object_codec_list_guid =
853 {0x86D15240, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
854 static const guid_t asf_object_codec_list_reserved_guid =
855 {0x86D15241, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
856 static const guid_t asf_object_content_description_guid =
857 {0x75B22633, 0x668E, 0x11CF, {0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}};
858 static const guid_t asf_object_index_guid =
859 {0x33000890, 0xE5B1, 0x11CF, {0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB}};
860 static const guid_t asf_object_metadata_guid =
861 {0xC5F8CBEA, 0x5BAF, 0x4877, {0x84, 0x67, 0xAA, 0x8C, 0x44, 0xFA, 0x4C, 0xCA}};
862 static const guid_t asf_object_extended_stream_properties_guid =
863 {0x14E6A5CB, 0xC672, 0x4332, {0x83, 0x99, 0xA9, 0x69, 0x52, 0x06, 0x5B, 0x5A}};
865 /****************************************************************************
867 ****************************************************************************/
868 static void asf_chunk_add( bo_t *bo,
869 int i_type, int i_len, int i_flags, int i_seq )
871 bo_addle_u16( bo, i_type );
872 bo_addle_u16( bo, i_len + 8 );
873 bo_addle_u32( bo, i_seq );
874 bo_addle_u16( bo, i_flags );
875 bo_addle_u16( bo, i_len + 8 );
878 static block_t *asf_header_create( sout_mux_t *p_mux, bool b_broadcast )
880 sout_mux_sys_t *p_sys = p_mux->p_sys;
882 mtime_t i_duration = 0;
883 int i_size, i_header_ext_size, i;
884 int i_ci_size, i_cm_size = 0, i_cd_size = 0;
889 msg_Dbg( p_mux, "Asf muxer creating header" );
891 if( p_sys->i_dts_first > VLC_TS_INVALID )
893 i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
894 if( i_duration < 0 ) i_duration = 0;
897 /* calculate header size */
900 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
902 tk = vlc_array_item_at_index( p_sys->p_tracks, i );
903 /* update also track-id */
906 i_size += 78 + tk->i_extra;
907 i_ci_size += 8 + 2 * strlen( tk->psz_name );
908 if( tk->i_cat == AUDIO_ES ) i_ci_size += 4;
909 else if( tk->i_cat == VIDEO_ES ) i_ci_size += 6;
911 /* Error correction data field */
912 if( tk->b_audio_correction ) i_size += 8;
915 /* size of the content description object */
916 if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
917 *p_sys->psz_comment || *p_sys->psz_rating )
919 i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
920 strlen( p_sys->psz_author ) + 1 +
921 strlen( p_sys->psz_copyright ) + 1 +
922 strlen( p_sys->psz_comment ) + 1 +
923 strlen( p_sys->psz_rating ) + 1 );
926 i_header_ext_size = 46;
928 /* size of the metadata object */
929 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
931 const asf_track_t *p_track = vlc_array_item_at_index( p_sys->p_tracks, i );
932 if( p_track->i_cat == VIDEO_ES &&
933 p_track->fmt.video.i_sar_num != 0 &&
934 p_track->fmt.video.i_sar_den != 0 )
936 i_cm_size = 26 + 2 * (16 + 2 * sizeof("AspectRatio?"));
938 if( p_track->b_extended )
939 i_header_ext_size += 88;
943 i_header_ext_size += i_cm_size;
945 i_size += i_ci_size + i_cd_size + i_header_ext_size ;
947 if( p_sys->b_asf_http )
949 out = block_New( p_mux, i_size + 50 + 12 );
950 bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
951 asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
955 out = block_New( p_mux, i_size + 50 );
956 bo_init( &bo, out->p_buffer, i_size + 50 );
960 bo_add_guid ( &bo, &asf_object_header_guid );
961 bo_addle_u64( &bo, i_size );
962 bo_addle_u32( &bo, 2 + vlc_array_count( p_sys->p_tracks ) + 1 +
963 (i_cd_size ? 1 : 0) + (i_cm_size ? 1 : 0) );
964 bo_add_u8 ( &bo, 1 );
965 bo_add_u8 ( &bo, 2 );
969 /* file properties */
970 bo_add_guid ( &bo, &asf_object_file_properties_guid );
971 bo_addle_u64( &bo, 104 );
972 bo_add_guid ( &bo, &p_sys->fid );
973 bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
974 p_sys->i_packet_size ); /* file size */
975 bo_addle_u64( &bo, 0 ); /* creation date */
976 bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
977 bo_addle_u64( &bo, i_duration * 10 ); /* play duration (100ns) */
978 bo_addle_u64( &bo, i_duration * 10 ); /* send duration (100ns) */
979 bo_addle_u64( &bo, p_sys->i_preroll_time ); /* preroll duration (ms) */
980 bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x02 /* seekable */ ); /* flags */
981 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size min */
982 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size max */
983 bo_addle_u32( &bo, p_sys->i_bitrate ); /* maxbitrate */
985 /* header extension */
986 bo_add_guid ( &bo, &asf_object_header_extension_guid );
987 bo_addle_u64( &bo, i_header_ext_size );
988 bo_add_guid ( &bo, &asf_guid_reserved_1 );
989 bo_addle_u16( &bo, 6 );
990 bo_addle_u32( &bo, i_header_ext_size - 46 );
992 /* extended stream properties */
993 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
995 const asf_track_t *p_track = vlc_array_item_at_index( p_sys->p_tracks, i );
996 const es_format_t *p_fmt = &p_track->fmt;
998 if( !p_track->b_extended )
1001 uint64_t i_avg_duration = 0;
1002 if( p_fmt->i_cat == VIDEO_ES &&
1003 p_fmt->video.i_frame_rate > 0 && p_fmt->video.i_frame_rate_base > 0 )
1004 i_avg_duration = ( INT64_C(10000000) * p_fmt->video.i_frame_rate_base +
1005 p_fmt->video.i_frame_rate/2 ) / p_fmt->video.i_frame_rate;
1007 bo_add_guid ( &bo, &asf_object_extended_stream_properties_guid );
1008 bo_addle_u64( &bo, 88 );
1009 bo_addle_u64( &bo, 0 );
1010 bo_addle_u64( &bo, 0 );
1011 bo_addle_u32( &bo, p_fmt->i_bitrate ); /* Bitrate */
1012 bo_addle_u32( &bo, 0 ); /* Buffer size */
1013 bo_addle_u32( &bo, 0 ); /* Initial buffer fullness */
1014 bo_addle_u32( &bo, p_fmt->i_bitrate ); /* Alternate Bitrate */
1015 bo_addle_u32( &bo, 0 ); /* Alternate Buffer size */
1016 bo_addle_u32( &bo, 0 ); /* Alternate Initial buffer fullness */
1017 bo_addle_u32( &bo, 0 ); /* Maximum object size (0 = unkown) */
1018 bo_addle_u32( &bo, 0x02 ); /* Flags (seekable) */
1019 bo_addle_u16( &bo, p_track->i_id ); /* Stream number */
1020 bo_addle_u16( &bo, 0 ); /* Stream language index */
1021 bo_addle_u64( &bo, i_avg_duration ); /* Average time per frame */
1022 bo_addle_u16( &bo, 0 ); /* Stream name count */
1023 bo_addle_u16( &bo, 0 ); /* Payload extension system count */
1026 /* metadata object (part of header extension) */
1029 unsigned int i_dst_num, i_dst_den;
1031 asf_track_t *tk = NULL;
1032 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1034 tk = vlc_array_item_at_index( p_sys->p_tracks, i );
1035 if( tk->i_cat == VIDEO_ES &&
1036 tk->fmt.video.i_sar_num != 0 &&
1037 tk->fmt.video.i_sar_den != 0 )
1040 assert( tk != NULL );
1042 vlc_ureduce( &i_dst_num, &i_dst_den,
1043 tk->fmt.video.i_sar_num,
1044 tk->fmt.video.i_sar_den, 0 );
1046 msg_Dbg( p_mux, "pixel aspect-ratio: %i/%i", i_dst_num, i_dst_den );
1048 bo_add_guid ( &bo, &asf_object_metadata_guid );
1049 bo_addle_u64( &bo, i_cm_size );
1050 bo_addle_u16( &bo, 2 ); /* description records count */
1051 /* 1st description record */
1052 bo_addle_u16( &bo, 0 ); /* reserved */
1053 bo_addle_u16( &bo, tk->i_id ); /* stream number (0 for the whole file) */
1054 bo_addle_u16( &bo, 2 * sizeof("AspectRatioX") ); /* name length */
1055 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
1056 bo_addle_u32( &bo, 4 ); /* data length */
1057 bo_addle_str16_nosize( &bo, "AspectRatioX" );
1058 bo_addle_u32( &bo, i_dst_num ); /* data */
1059 /* 2nd description record */
1060 bo_addle_u16( &bo, 0 ); /* reserved */
1061 bo_addle_u16( &bo, tk->i_id ); /* stream number (0 for the whole file) */
1062 bo_addle_u16( &bo, 2 * sizeof("AspectRatioY") ); /* name length */
1063 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
1064 bo_addle_u32( &bo, 4 ); /* data length */
1065 bo_addle_str16_nosize( &bo, "AspectRatioY" );
1066 bo_addle_u32( &bo, i_dst_den ); /* data */
1069 /* content description header */
1072 bo_add_guid ( &bo, &asf_object_content_description_guid );
1073 bo_addle_u64( &bo, i_cd_size );
1074 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
1075 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
1076 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
1077 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
1078 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );
1080 bo_addle_str16_nosize( &bo, p_sys->psz_title );
1081 bo_addle_str16_nosize( &bo, p_sys->psz_author );
1082 bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
1083 bo_addle_str16_nosize( &bo, p_sys->psz_comment );
1084 bo_addle_str16_nosize( &bo, p_sys->psz_rating );
1087 /* stream properties */
1088 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1090 tk = vlc_array_item_at_index( p_sys->p_tracks, i);
1092 bo_add_guid ( &bo, &asf_object_stream_properties_guid );
1093 bo_addle_u64( &bo, 78 + tk->i_extra + (tk->b_audio_correction ? 8:0) );
1095 if( tk->i_cat == AUDIO_ES )
1097 bo_add_guid( &bo, &asf_object_stream_type_audio );
1098 if( tk->b_audio_correction )
1099 bo_add_guid( &bo, &asf_guid_audio_conceal_spread );
1101 bo_add_guid( &bo, &asf_guid_audio_conceal_none );
1103 else if( tk->i_cat == VIDEO_ES )
1105 bo_add_guid( &bo, &asf_object_stream_type_video );
1106 bo_add_guid( &bo, &asf_guid_video_conceal_none );
1108 bo_addle_u64( &bo, 0 ); /* time offset */
1109 bo_addle_u32( &bo, tk->i_extra );
1110 /* correction data length */
1111 bo_addle_u32( &bo, tk->b_audio_correction ? 8 : 0 );
1112 bo_addle_u16( &bo, tk->i_id ); /* stream number */
1113 bo_addle_u32( &bo, 0 );
1114 bo_add_mem ( &bo, tk->p_extra, tk->i_extra );
1116 /* Error correction data field */
1117 if( tk->b_audio_correction )
1119 bo_add_u8( &bo, 0x1 ); /* span */
1120 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual packet length */
1121 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual chunck length */
1122 bo_addle_u16( &bo, 1 ); /* silence length */
1123 bo_add_u8( &bo, 0x0 ); /* data */
1128 bo_add_guid ( &bo, &asf_object_codec_list_guid );
1129 bo_addle_u64( &bo, i_ci_size );
1130 bo_add_guid ( &bo, &asf_object_codec_list_reserved_guid );
1131 bo_addle_u32( &bo, vlc_array_count( p_sys->p_tracks ) );
1132 for( i = 0; i < vlc_array_count( p_sys->p_tracks ); i++ )
1134 tk = vlc_array_item_at_index( p_sys->p_tracks ,i);
1136 if( tk->i_cat == VIDEO_ES ) bo_addle_u16( &bo, 1 /* video */ );
1137 else if( tk->i_cat == AUDIO_ES ) bo_addle_u16( &bo, 2 /* audio */ );
1138 else bo_addle_u16( &bo, 0xFFFF /* unknown */ );
1140 bo_addle_str16( &bo, tk->psz_name );
1141 bo_addle_u16( &bo, 0 );
1142 if( tk->i_cat == AUDIO_ES )
1144 bo_addle_u16( &bo, 2 );
1145 bo_addle_u16( &bo, tk->i_tag );
1147 else if( tk->i_cat == VIDEO_ES )
1149 bo_addle_u16( &bo, 4 );
1150 bo_add_mem ( &bo, (uint8_t*)&tk->i_fourcc, 4 );
1155 bo_add_guid ( &bo, &asf_object_data_guid );
1156 bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
1157 bo_add_guid ( &bo, &p_sys->fid );
1158 bo_addle_u64( &bo, p_sys->i_packet_count );
1159 bo_addle_u16( &bo, 0x101 );
1164 /****************************************************************************
1166 ****************************************************************************/
1167 static block_t *asf_packet_flush( sout_mux_t *p_mux )
1169 sout_mux_sys_t *p_sys = p_mux->p_sys;
1170 int i_pad, i_preheader = p_sys->b_asf_http ? 12 : 0;
1174 if( !p_sys->pk ) return 0;
1176 i_pad = p_sys->i_packet_size - p_sys->i_pk_used;
1177 memset( p_sys->pk->p_buffer + p_sys->i_pk_used, 0, i_pad );
1179 bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );
1181 if( p_sys->b_asf_http )
1182 asf_chunk_add( &bo, 0x4424, p_sys->i_packet_size, 0x0, p_sys->i_seq++);
1184 bo_add_u8 ( &bo, 0x82 );
1185 bo_addle_u16( &bo, 0 );
1186 bo_add_u8( &bo, 0x11 );
1187 bo_add_u8( &bo, 0x5d );
1188 bo_addle_u16( &bo, i_pad );
1189 bo_addle_u32( &bo, (p_sys->i_pk_dts - p_sys->i_dts_first) / 1000 +
1190 p_sys->i_preroll_time );
1191 bo_addle_u16( &bo, 0 /* data->i_length */ );
1192 bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );
1197 p_sys->i_packet_count++;
1202 static block_t *asf_packet_create( sout_mux_t *p_mux,
1203 asf_track_t *tk, block_t *data )
1205 sout_mux_sys_t *p_sys = p_mux->p_sys;
1207 int i_data = data->i_buffer;
1209 uint8_t *p_data= data->p_buffer;
1210 block_t *first = NULL, **last = &first;
1211 int i_preheader = p_sys->b_asf_http ? 12 : 0;
1213 while( i_pos < i_data )
1218 if( p_sys->pk == NULL )
1220 p_sys->pk = block_New( p_mux, p_sys->i_packet_size + i_preheader );
1221 /* reserve 14 bytes for the packet header */
1222 p_sys->i_pk_used = 14 + i_preheader;
1223 p_sys->i_pk_frame = 0;
1224 p_sys->i_pk_dts = data->i_dts;
1227 bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
1228 p_sys->i_packet_size - p_sys->i_pk_used );
1230 /* add payload (header size = 17) */
1231 i_payload = __MIN( i_data - i_pos,
1232 p_sys->i_packet_size - p_sys->i_pk_used - 17 );
1234 if( tk->b_audio_correction && p_sys->i_pk_frame && i_payload < i_data )
1236 /* Don't know why yet but WMP doesn't like splitted WMA packets */
1237 *last = asf_packet_flush( p_mux );
1238 last = &(*last)->p_next;
1242 bo_add_u8 ( &bo, !(data->i_flags & BLOCK_FLAG_TYPE_P ||
1243 data->i_flags & BLOCK_FLAG_TYPE_B) ?
1244 0x80 | tk->i_id : tk->i_id );
1245 bo_add_u8 ( &bo, tk->i_sequence );
1246 bo_addle_u32( &bo, i_pos );
1247 bo_add_u8 ( &bo, 0x08 ); /* flags */
1248 bo_addle_u32( &bo, i_data );
1249 bo_addle_u32( &bo, (data->i_dts - p_sys->i_dts_first) / 1000 +
1250 p_sys->i_preroll_time );
1251 bo_addle_u16( &bo, i_payload );
1252 bo_add_mem ( &bo, &p_data[i_pos], i_payload );
1254 p_sys->i_pk_used += 17 + i_payload;
1256 p_sys->i_pk_frame++;
1258 if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1260 /* Not enough data for another payload, flush the packet */
1261 *last = asf_packet_flush( p_mux );
1262 last = &(*last)->p_next;
1267 block_Release( data );
1272 static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1274 sout_mux_sys_t *p_sys = p_mux->p_sys;
1276 block_t *out = NULL;
1279 if( p_sys->b_asf_http )
1281 out = block_New( p_mux, 12 );
1282 bo_init( &bo, out->p_buffer, 12 );
1283 asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
1288 out = block_New( p_mux, 56 );
1289 bo_init( &bo, out->p_buffer, 56 );
1290 bo_add_guid ( &bo, &asf_object_index_guid );
1291 bo_addle_u64( &bo, 56 );
1292 bo_add_guid ( &bo, &p_sys->fid );
1293 bo_addle_u64( &bo, 10000000 );
1294 bo_addle_u32( &bo, 5 );
1295 bo_addle_u32( &bo, 0 );