asf.c 32.8 KB
Newer Older
1
2
3
4
/*****************************************************************************
 * asf.c
 *****************************************************************************
 * Copyright (C) 2003 VideoLAN
5
 * $Id$
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
 *
 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
 *****************************************************************************/

/*****************************************************************************
 * Preamble
 *****************************************************************************/
#include <stdlib.h>

#include <vlc/vlc.h>
#include <vlc/input.h>
#include <vlc/sout.h>

#include "codecs.h"

/*****************************************************************************
 * Module descriptor
 *****************************************************************************/
static int  Open   ( vlc_object_t * );
static void Close  ( vlc_object_t * );

41
42
#define SOUT_CFG_PREFIX "sout-asf-"

43
vlc_module_begin();
Sam Hocevar's avatar
Sam Hocevar committed
44
    set_description( _("ASF muxer") );
45
46
    set_capability( "sout mux", 5 );
    add_shortcut( "asf" );
47
    add_shortcut( "asfh" );
48
    set_callbacks( Open, Close );
49
50
51
52
53
54

    add_string( SOUT_CFG_PREFIX "title",    "", NULL, "title",     "title", VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "author",   "", NULL, "author",    "author", VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "copyright","", NULL, "copyright", "copyright", VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "comment",  "", NULL, "comment",   "comment", VLC_TRUE );
    add_string( SOUT_CFG_PREFIX "rating",  "", NULL, "rating",   "rating", VLC_TRUE );
55
56
57
58
59
vlc_module_end();

/*****************************************************************************
 * Locales prototypes
 *****************************************************************************/
60
61
62
63
static const char *ppsz_sout_options[] = {
    "title", "author", "copyright", "comment", "rating", NULL
};;

64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
static int  Capability(sout_mux_t *, int, void *, void * );
static int  AddStream( sout_mux_t *, sout_input_t * );
static int  DelStream( sout_mux_t *, sout_input_t * );
static int  Mux      ( sout_mux_t * );

typedef struct
{
    uint32_t v1; /* le */
    uint16_t v2; /* le */
    uint16_t v3; /* le */
    uint8_t  v4[8];
} guid_t;

typedef struct
{
79
80
    int          i_id;
    int          i_cat;
81

82
83
84
85
86
87
88
89
90
    /* codec informations */
    uint16_t     i_tag;     /* for audio */
    vlc_fourcc_t i_fourcc;  /* for video */
    char         *psz_name; /* codec name */

    int          i_sequence;

    int          i_extra;
    uint8_t     *p_extra;
91
92
93
94
95
96
97
98
} asf_track_t;

struct sout_mux_sys_t
{
    guid_t          fid;    /* file id */
    int             i_packet_size;
    int64_t         i_packet_count;
    mtime_t         i_dts_first;
99
100
    mtime_t         i_dts_last;
    int64_t         i_bitrate;
101
102
103
104
105
106

    int             i_track;
    asf_track_t     track[128];

    vlc_bool_t      b_write_header;

107
    block_t   *pk;
108
109
110
    int             i_pk_used;
    int             i_pk_frame;
    mtime_t         i_pk_dts;
111
112
113

    vlc_bool_t      b_asf_http;
    int             i_seq;
114
115
116
117
118
119
120

    /* meta data */
    char            *psz_title;
    char            *psz_author;
    char            *psz_copyright;
    char            *psz_comment;
    char            *psz_rating;
121
122
123
124
};

static int MuxGetStream( sout_mux_t *, int *pi_stream, mtime_t *pi_dts );

125
126
127
128
static block_t *asf_header_create( sout_mux_t *, vlc_bool_t b_broadcast );
static block_t *asf_packet_create( sout_mux_t *,
                                         asf_track_t *, block_t * );
static block_t *asf_stream_end_create( sout_mux_t *);
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143

typedef struct
{
    int      i_buffer_size;
    int      i_buffer;
    uint8_t  *p_buffer;
} bo_t;

static void bo_init     ( bo_t *, uint8_t *, int  );
static void bo_add_u8   ( bo_t *, uint8_t  );
static void bo_addle_u16( bo_t *, uint16_t );
static void bo_addle_u32( bo_t *, uint32_t );
static void bo_addle_u64( bo_t *, uint64_t );
static void bo_add_mem  ( bo_t *, uint8_t *, int );

144
static void bo_addle_str16( bo_t *, char * );
145
146
147
148
149
150
151
152

/*****************************************************************************
 * Open:
 *****************************************************************************/
static int Open( vlc_object_t *p_this )
{
    sout_mux_t     *p_mux = (sout_mux_t*)p_this;
    sout_mux_sys_t *p_sys;
153
    vlc_value_t    val;
154
155
156
    int i;

    msg_Dbg( p_mux, "Asf muxer opened" );
157
    sout_ParseCfg( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
158
159
160
161
162
163
164

    p_mux->pf_capacity  = Capability;
    p_mux->pf_addstream = AddStream;
    p_mux->pf_delstream = DelStream;
    p_mux->pf_mux       = Mux;

    p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
165
166
167
168
169
    p_sys->b_asf_http = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "asfh" );
    if( p_sys->b_asf_http )
    {
        msg_Dbg( p_mux, "creating asf stream to be used with mmsh" );
    }
170
    p_sys->pk = NULL;
171
172
173
174
175
    p_sys->i_pk_used    = 0;
    p_sys->i_pk_frame   = 0;
    p_sys->i_dts_first  = -1;
    p_sys->i_dts_last   = 0;
    p_sys->i_bitrate    = 0;
176
    p_sys->i_seq        = 0;
177
178
179
180
181
182
183
184
185
186
187
188
189
190

    p_sys->b_write_header = VLC_TRUE;
    p_sys->i_track = 1;
    p_sys->i_packet_size = 4096;
    p_sys->i_packet_count= 0;
    /* generate a random fid */
    srand( mdate() & 0xffffffff );
    p_sys->fid.v1 = 0xbabac001;
    p_sys->fid.v2 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
    p_sys->fid.v3 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
    for( i = 0; i < 8; i++ )
    {
        p_sys->fid.v4[i] = ( (uint64_t)rand() << 8 ) / RAND_MAX;
    }
191
    /* meta data */
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
    var_Get( p_mux, SOUT_CFG_PREFIX "title", &val );
    p_sys->psz_title = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "author", &val );
    p_sys->psz_author = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "copyright", &val );
    p_sys->psz_copyright = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "comment", &val );
    p_sys->psz_comment = val.psz_string;

    var_Get( p_mux, SOUT_CFG_PREFIX "rating", &val );
    p_sys->psz_rating = val.psz_string;

207
208
209
210
    msg_Dbg( p_mux,
             "meta data: title='%s' author='%s' copyright='%s' comment='%s' rating='%s'",
             p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
             p_sys->psz_comment, p_sys->psz_rating );
211

212
213
214
215
216
217
218
219
220
221
    return VLC_SUCCESS;
}

/*****************************************************************************
 * Close:
 *****************************************************************************/
static void Close( vlc_object_t * p_this )
{
    sout_mux_t     *p_mux = (sout_mux_t*)p_this;
    sout_mux_sys_t *p_sys = p_mux->p_sys;
222
    block_t  *out;
223
224
225
226
    int i;

    msg_Dbg( p_mux, "Asf muxer closed" );

227
228
229
230
231
    if( ( out = asf_stream_end_create( p_mux ) ) )
    {
        sout_AccessOutWrite( p_mux->p_access, out );
    }

232
233
234
    /* rewrite header */
    if( !sout_AccessOutSeek( p_mux->p_access, 0 ) )
    {
235
236
        out = asf_header_create( p_mux, VLC_FALSE );
        sout_AccessOutWrite( p_mux->p_access, out );
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
    }

    for( i = 1; i < p_sys->i_track; i++ )
    {
        free( p_sys->track[i].p_extra );
    }
    free( p_sys );
}

/*****************************************************************************
 * Capability:
 *****************************************************************************/
static int Capability( sout_mux_t *p_mux, int i_query,
                       void *p_args, void *p_answer )
{
   switch( i_query )
   {
        case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
            *(vlc_bool_t*)p_answer = VLC_FALSE;
            return( SOUT_MUX_CAP_ERR_OK );
        default:
            return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
   }
}

/*****************************************************************************
 * AddStream:
 *****************************************************************************/
static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
    sout_mux_sys_t   *p_sys = p_mux->p_sys;
    asf_track_t      *tk;
    bo_t             bo;

    msg_Dbg( p_mux, "adding input" );
    if( p_sys->i_track > 127 )
    {
        msg_Dbg( p_mux, "cannot add this track (too much track)" );
        return VLC_EGENERIC;
    }

    tk = p_input->p_sys = &p_sys->track[p_sys->i_track];
    tk->i_id  = p_sys->i_track;
    tk->i_cat = p_input->p_fmt->i_cat;
    tk->i_sequence = 0;

    switch( tk->i_cat )
    {
        case AUDIO_ES:
        {
287
            int      i_blockalign = p_input->p_fmt->audio.i_blockalign;
288
            int      i_bitspersample = 0;
289
            int      i_extra = 0;
290

291
            switch( p_input->p_fmt->i_codec )
292
293
            {
                case VLC_FOURCC( 'a', '5', '2', ' ' ):
294
295
                    tk->i_tag = WAVE_FORMAT_A52;
                    tk->psz_name = "A/52";
296
297
                    break;
                case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
298
#if 1
299
300
                    tk->psz_name = "MPEG Audio Layer 3";
                    tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
301
                    i_blockalign = 1;
302
                    i_extra = 12;
303
                    break;
304
#else
305
306
                    tk->psz_name = "MPEG Audio Layer 1/2";
                    tk->i_tag = WAVE_FORMAT_MPEG;
307
308
309
310
                    i_blockalign = 1;
                    i_extra = 22;
                    break;
#endif
311
                case VLC_FOURCC( 'w', 'm', 'a', '1' ):
312
313
                    tk->psz_name = "Windows Media Audio 1";
                    tk->i_tag = WAVE_FORMAT_WMA1;
314
315
                    break;
                case VLC_FOURCC( 'w', 'm', 'a', '2' ):
316
317
                    tk->psz_name = "Windows Media Audio 2";
                    tk->i_tag = WAVE_FORMAT_WMA2;
318
319
                    break;
                case VLC_FOURCC( 'w', 'm', 'a', '3' ):
320
321
                    tk->psz_name = "Windows Media Audio 3";
                    tk->i_tag = WAVE_FORMAT_WMA3;
322
323
324
                    break;
                    /* raw codec */
                case VLC_FOURCC( 'u', '8', ' ', ' ' ):
325
326
                    tk->psz_name = "Raw audio 8bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
327
                    i_blockalign= p_input->p_fmt->audio.i_channels;
328
329
330
                    i_bitspersample = 8;
                    break;
                case VLC_FOURCC( 's', '1', '6', 'l' ):
331
332
                    tk->psz_name = "Raw audio 16bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
333
                    i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
334
335
336
                    i_bitspersample = 16;
                    break;
                case VLC_FOURCC( 's', '2', '4', 'l' ):
337
338
                    tk->psz_name = "Raw audio 24bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
339
                    i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
340
341
342
                    i_bitspersample = 24;
                    break;
                case VLC_FOURCC( 's', '3', '2', 'l' ):
343
344
                    tk->psz_name = "Raw audio 32bits";
                    tk->i_tag = WAVE_FORMAT_PCM;
345
                    i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
346
347
348
349
350
351
                    i_bitspersample = 32;
                    break;
                default:
                    return VLC_EGENERIC;
            }

352

353
            tk->i_extra = sizeof( WAVEFORMATEX ) +
354
                          p_input->p_fmt->i_extra + i_extra;
355
356
            tk->p_extra = malloc( tk->i_extra );
            bo_init( &bo, tk->p_extra, tk->i_extra );
357
            bo_addle_u16( &bo, tk->i_tag );
358
359
            bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
            bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
360
361
362
            bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
            bo_addle_u16( &bo, i_blockalign );
            bo_addle_u16( &bo, i_bitspersample );
363
            if( p_input->p_fmt->i_extra > 0 )
364
            {
365
366
367
                bo_addle_u16( &bo, p_input->p_fmt->i_extra );
                bo_add_mem  ( &bo, p_input->p_fmt->p_extra,
                              p_input->p_fmt->i_extra );
368
            }
369
370
371
            else
            {
                bo_addle_u16( &bo, i_extra );
372
                if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
373
                {
374
                    msg_Dbg( p_mux, "adding mp3 header" );
375
376
377
378
379
380
                    bo_addle_u16( &bo, 1 );     /* wId */
                    bo_addle_u32( &bo, 2 );     /* fdwFlags */
                    bo_addle_u16( &bo, 1152 );  /* nBlockSize */
                    bo_addle_u16( &bo, 1 );     /* nFramesPerBlock */
                    bo_addle_u16( &bo, 1393 );  /* nCodecDelay */
                }
381
                else if( tk->i_tag == WAVE_FORMAT_MPEG )
382
383
384
385
                {
                    msg_Dbg( p_mux, "adding mp2 header" );
                    bo_addle_u16( &bo, 2 );     /* fwHeadLayer */
                    bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
386
                    bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
387
388
389
390
391
392
                    bo_addle_u16( &bo, 0 );     /* fwHeadModeExt */
                    bo_addle_u16( &bo, 1 );     /* wHeadEmphasis */
                    bo_addle_u16( &bo, 16 );    /* fwHeadFlags */
                    bo_addle_u32( &bo, 0 );     /* dwPTSLow */
                    bo_addle_u32( &bo, 0 );     /* dwPTSHigh */
                }
393
394
            }

395
396
397
398
399
400
401
402
            if( p_input->p_fmt->i_bitrate > 24000 )
            {
                p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
            }
            else
            {
                p_sys->i_bitrate += 512000;
            }
403
404
405
406
407
            break;
        }
        case VIDEO_ES:
        {
            tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) +
408
                          p_input->p_fmt->i_extra;
409
410
            tk->p_extra = malloc( tk->i_extra );
            bo_init( &bo, tk->p_extra, tk->i_extra );
411
412
            bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
            bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
413
414
            bo_add_u8   ( &bo, 0x02 );  /* flags */
            bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) +
415
                               p_input->p_fmt->i_extra );
416
            bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) +
417
418
419
                               p_input->p_fmt->i_extra );
            bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
            bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
420
421
            bo_addle_u16( &bo, 1 );
            bo_addle_u16( &bo, 24 );
422
            if( p_input->p_fmt->i_codec == VLC_FOURCC('m','p','4','v') )
423
            {
424
425
                tk->psz_name = "MPEG-4 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
426
            }
427
            else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','3') )
428
            {
429
430
                tk->psz_name = "MSMPEG-4 V3 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
431
            }
432
            else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','2') )
433
            {
434
435
                tk->psz_name = "MSMPEG-4 V2 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
436
            }
437
            else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','1') )
438
            {
439
440
441
                tk->psz_name = "MSMPEG-4 V1 Video";
                tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
            }
442
            else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','1') )
443
444
445
446
            {
                tk->psz_name = "Windows Media Video 1";
                tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
            }
447
            else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','2') )
448
449
450
            {
                tk->psz_name = "Windows Media Video 2";
                tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
451
            }
452
453
            else
            {
Felix Paul Kühne's avatar
Felix Paul Kühne committed
454
                tk->psz_name = _("Unknown Video");
455
                tk->i_fourcc = p_input->p_fmt->i_codec;
456
            }
457
            bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
458
459
460
461
462
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
            bo_addle_u32( &bo, 0 );
463
            if( p_input->p_fmt->i_extra > 0 )
464
            {
465
466
                bo_add_mem  ( &bo, p_input->p_fmt->p_extra,
                              p_input->p_fmt->i_extra );
467
468
            }

469
470
471
472
473
474
475
476
            if( p_input->p_fmt->i_bitrate > 50000 )
            {
                p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
            }
            else
            {
                p_sys->i_bitrate += 1000000;
            }
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
            break;
        }
        default:
            msg_Err(p_mux, "unhandled track type" );
            return VLC_EGENERIC;
    }

    p_sys->i_track++;
    return VLC_SUCCESS;
}

/*****************************************************************************
 * DelStream:
 *****************************************************************************/
static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
{
    msg_Dbg( p_mux, "removing input" );
    return VLC_SUCCESS;
}

/*****************************************************************************
 * Mux:
 *****************************************************************************/
static int Mux      ( sout_mux_t *p_mux )
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

    if( p_sys->b_write_header )
    {
506
        block_t *out = asf_header_create( p_mux, VLC_TRUE );
507

508
        out->i_flags |= BLOCK_FLAG_HEADER;
509
510
511
512
513
514
515
516
517
518
519
        sout_AccessOutWrite( p_mux->p_access, out );

        p_sys->b_write_header = VLC_FALSE;
    }

    for( ;; )
    {
        sout_input_t  *p_input;
        asf_track_t   *tk;
        int           i_stream;
        mtime_t       i_dts;
520
521
        block_t *data;
        block_t *pk;
522
523
524
525
526
527
528
529
530
531
532

        if( MuxGetStream( p_mux, &i_stream, &i_dts ) )
        {
            /* not enough data */
            return VLC_SUCCESS;
        }

        if( p_sys->i_dts_first < 0 )
        {
            p_sys->i_dts_first = i_dts;
        }
533
534
535
536
        if( p_sys->i_dts_last < i_dts )
        {
            p_sys->i_dts_last = i_dts;
        }
537
538
539
540

        p_input = p_mux->pp_inputs[i_stream];
        tk      = (asf_track_t*)p_input->p_sys;

541
        data = block_FifoGet( p_input->p_fifo );
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563

        if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
        {
            sout_AccessOutWrite( p_mux->p_access, pk );
        }
    }

    return VLC_SUCCESS;
}


static int MuxGetStream( sout_mux_t *p_mux,
                         int        *pi_stream,
                         mtime_t    *pi_dts )
{
    mtime_t i_dts;
    int     i_stream;
    int     i;

    for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
    {
        sout_input_t  *p_input = p_mux->pp_inputs[i];
564
        block_t *p_data;
565
566
567
568
569
570
571
572
573
574
575
576
577

        if( p_input->p_fifo->i_depth <= 0 )
        {
            if( p_input->p_fmt->i_cat == AUDIO_ES ||
                p_input->p_fmt->i_cat == VIDEO_ES )
            {
                /* We need that audio+video fifo contain at least 1 packet */
                return VLC_EGENERIC;
            }
            /* SPU */
            continue;
        }

578
        p_data = block_FifoShow( p_input->p_fifo );
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
        if( i_stream == -1 ||
            p_data->i_dts < i_dts )
        {
            i_stream = i;
            i_dts    = p_data->i_dts;
        }
    }

    *pi_stream = i_stream;
    *pi_dts = i_dts;

    return VLC_SUCCESS;
}

/****************************************************************************
 * Asf header construction
 ****************************************************************************/

/****************************************************************************
 * Buffer out
 ****************************************************************************/
static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
{
    p_bo->i_buffer_size = i_size;
    p_bo->i_buffer = 0;
    p_bo->p_buffer = p_buffer;
}
static void bo_add_u8( bo_t *p_bo, uint8_t i )
{
    if( p_bo->i_buffer < p_bo->i_buffer_size )
    {
        p_bo->p_buffer[p_bo->i_buffer] = i;
    }
    p_bo->i_buffer++;
}
static void bo_addle_u16( bo_t *p_bo, uint16_t i )
{
    bo_add_u8( p_bo, i &0xff );
    bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
}
static void bo_addle_u32( bo_t *p_bo, uint32_t i )
{
    bo_addle_u16( p_bo, i &0xffff );
    bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
}
static void bo_addle_u64( bo_t *p_bo, uint64_t i )
{
    bo_addle_u32( p_bo, i &0xffffffff );
    bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
}

static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
{
    int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );

    if( i_copy > 0 )
    {
        memcpy( &p_bo->p_buffer[p_bo->i_buffer],
                p_mem,
                i_copy );
    }
    p_bo->i_buffer += i_size;
}

643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
static void bo_addle_str16( bo_t *bo, char *str )
{
    bo_addle_u16( bo, strlen( str ) + 1 );
    for( ;; )
    {
        uint16_t c;

        c = (uint8_t)*str++;
        bo_addle_u16( bo, c );
        if( c == '\0' )
        {
            break;
        }
    }
}

659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
static void bo_addle_str16_nosize( bo_t *bo, char *str )
{
    for( ;; )
    {
        uint16_t c;

        c = (uint8_t)*str++;
        bo_addle_u16( bo, c );
        if( c == '\0' )
        {
            break;
        }
    }
}

674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
/****************************************************************************
 * guid
 ****************************************************************************/
static void bo_add_guid( bo_t *p_bo, const guid_t *id )
{
    int i;
    bo_addle_u32( p_bo, id->v1 );
    bo_addle_u16( p_bo, id->v2 );
    bo_addle_u16( p_bo, id->v3 );
    for( i = 0; i < 8; i++ )
    {
        bo_add_u8( p_bo, id->v4[i] );
    }
}

static const guid_t asf_object_header_guid =
{
    0x75B22630,
    0x668E,
    0x11CF,
    { 0xA6,0xD9, 0x00,0xAA,0x00,0x62,0xCE,0x6C }
};
static const guid_t asf_object_data_guid =
{
    0x75B22636,
    0x668E,
    0x11CF,
    { 0xA6,0xD9, 0x00,0xAA,0x00,0x62,0xCE,0x6C }
};

static const guid_t asf_object_file_properties_guid =
{
    0x8cabdca1,
    0xa947,
    0x11cf,
    { 0x8e,0xe4, 0x00,0xC0,0x0C,0x20,0x53,0x65 }

};
static const guid_t asf_object_stream_properties_guid =
{
    0xB7DC0791,
    0xA9B7,
    0x11CF,
    { 0x8E,0xE6, 0x00,0xC0,0x0C,0x20,0x53,0x65 }

};
static const guid_t asf_object_header_extention_guid =
{
   0x5FBF03B5,
   0xA92E,
   0x11CF,
   { 0x8E,0xE3, 0x00,0xC0,0x0C,0x20,0x53,0x65 }
};

static const guid_t asf_object_stream_type_audio =
{
    0xF8699E40,
    0x5B4D,
    0x11CF,
    { 0xA8,0xFD, 0x00,0x80,0x5F,0x5C,0x44,0x2B }
};

static const guid_t asf_object_stream_type_video =
{
    0xbc19efc0,
    0x5B4D,
    0x11CF,
    { 0xA8,0xFD, 0x00,0x80,0x5F,0x5C,0x44,0x2B }
};

static const guid_t asf_guid_audio_conceal_none =
{
    0x20FB5700,
    0x5B55,
    0x11CF,
    { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B }
};
static const guid_t asf_guid_video_conceal_none =
{
    0x20FB5700,
    0x5B55,
    0x11CF,
    { 0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B }
};
static const guid_t asf_guid_reserved_1 =
{
    0xABD3D211,
    0xA9BA,
    0x11cf,
    { 0x8E, 0xE6,0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65 }
};
765
static const guid_t asf_object_codec_comment_guid =
766
767
768
769
770
771
{
    0x86D15240,
    0x311D,
    0x11D0,
    { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 }
};
772
static const guid_t asf_object_codec_comment_reserved_guid =
773
774
775
776
777
778
{
    0x86D15241,
    0x311D,
    0x11D0,
    { 0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6 }
};
779
780
781
782
783
784
785
static const guid_t asf_object_content_description_guid =
{
    0x75B22633,
    0x668E,
    0x11CF,
    { 0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c }
};
786

787
788
789
790
791
792
793
794
795
796
static void asf_chunk_add( bo_t *bo,
                           int i_type, int i_len, int i_flags, int i_seq )
{
    bo_addle_u16( bo, i_type );
    bo_addle_u16( bo, i_len + 8 );
    bo_addle_u32( bo, i_seq );
    bo_addle_u16( bo, i_flags );
    bo_addle_u16( bo, i_len + 8 );
}

797
static block_t *asf_header_create( sout_mux_t *p_mux,
798
799
800
801
802
                                         vlc_bool_t b_broadcast )
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;
    asf_track_t    *tk;

803
    mtime_t        i_duration = 0;
804
    int i_size;
805
    int i_ci_size;
806
    int i_cd_size = 0;
807
    block_t *out;
808
809
810
    bo_t          bo;
    int           i;

811
812
813
814
815
816
817
818
819
    if( p_sys->i_dts_first > 0 )
    {
        i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
        if( i_duration < 0 )
        {
            i_duration = 0;
        }
    }

820
821
    /* calculate header size */
    i_size = 30 + 104 + 46;
822
    i_ci_size = 44;
823
824
825
    for( i = 1; i < p_sys->i_track; i++ )
    {
        i_size += 78 + p_sys->track[i].i_extra;
826
827
828
829
830
831
832
833
834
        i_ci_size += 8 + 2 * strlen( p_sys->track[i].psz_name );
        if( p_sys->track[i].i_cat == AUDIO_ES )
        {
            i_ci_size += 4;
        }
        else if( p_sys->track[i].i_cat == VIDEO_ES )
        {
            i_ci_size += 6;
        }
835
    }
836
837
838
839
840
841
842
843
844
    if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
        *p_sys->psz_comment || *p_sys->psz_rating )
    {
        i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
                             strlen( p_sys->psz_author ) + 1 +
                             strlen( p_sys->psz_copyright ) + 1 +
                             strlen( p_sys->psz_comment ) + 1 +
                             strlen( p_sys->psz_rating ) + 1 );
    }
845

846
    i_size += i_ci_size + i_cd_size;
847

848
849
    if( p_sys->b_asf_http )
    {
850
        out = block_New( p_mux, i_size + 50 + 12 );
851
852
853
854
855
        bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
        asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
    }
    else
    {
856
        out = block_New( p_mux, i_size + 50 );
857
858
        bo_init( &bo, out->p_buffer, i_size + 50 );
    }
859
860
861
    /* header object */
    bo_add_guid ( &bo, &asf_object_header_guid );
    bo_addle_u64( &bo, i_size );
862
    bo_addle_u32( &bo, 2 + p_sys->i_track - 1 );
863
864
865
866
867
868
869
870
871
    bo_add_u8   ( &bo, 1 );
    bo_add_u8   ( &bo, 2 );

    /* sub object */

    /* file properties */
    bo_add_guid ( &bo, &asf_object_file_properties_guid );
    bo_addle_u64( &bo, 104 );
    bo_add_guid ( &bo, &p_sys->fid );
872
    bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
873
                                p_sys->i_packet_size ); /* file size */
874
    bo_addle_u64( &bo, 0 );                 /* creation date */
875
    bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
876
877
    bo_addle_u64( &bo, i_duration * 10 );   /* play duration (100ns) */
    bo_addle_u64( &bo, i_duration * 10 );   /* send duration (100ns) */
878
    bo_addle_u64( &bo, 3000 );              /* preroll duration (ms) */
879
880
881
    bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x00);      /* flags */
    bo_addle_u32( &bo, p_sys->i_packet_size );  /* packet size min */
    bo_addle_u32( &bo, p_sys->i_packet_size );  /* packet size max */
882
    bo_addle_u32( &bo, p_sys->i_bitrate );      /* maxbitrate */
883
884
885
886
887
888
889
890

    /* header extention */
    bo_add_guid ( &bo, &asf_object_header_extention_guid );
    bo_addle_u64( &bo, 46 );
    bo_add_guid ( &bo, &asf_guid_reserved_1 );
    bo_addle_u16( &bo, 6 );
    bo_addle_u32( &bo, 0 );

891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
    /* content description header */
    if( i_cd_size > 0 )
    {
        bo_add_guid ( &bo, &asf_object_content_description_guid );
        bo_addle_u64( &bo, i_cd_size );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
        bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );

        bo_addle_str16_nosize( &bo, p_sys->psz_title );
        bo_addle_str16_nosize( &bo, p_sys->psz_author );
        bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
        bo_addle_str16_nosize( &bo, p_sys->psz_comment );
        bo_addle_str16_nosize( &bo, p_sys->psz_rating );
    }

909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
    /* stream properties */
    for( i = 1; i < p_sys->i_track; i++ )
    {
        tk = &p_sys->track[i];

        bo_add_guid ( &bo, &asf_object_stream_properties_guid );
        bo_addle_u64( &bo, 78 + tk->i_extra );
        if( tk->i_cat == AUDIO_ES )
        {
            bo_add_guid( &bo, &asf_object_stream_type_audio );
            bo_add_guid( &bo, &asf_guid_audio_conceal_none );
        }
        else if( tk->i_cat == VIDEO_ES )
        {
            bo_add_guid( &bo, &asf_object_stream_type_video );
            bo_add_guid( &bo, &asf_guid_video_conceal_none );
        }
        bo_addle_u64( &bo, 0 );         /* time offset */
        bo_addle_u32( &bo, tk->i_extra );
        bo_addle_u32( &bo, 0 );         /* 0 */
        bo_addle_u16( &bo, tk->i_id );  /* stream number */
        bo_addle_u32( &bo, 0 );
        bo_add_mem  ( &bo, tk->p_extra, tk->i_extra );
    }

934
    /* Codec Infos */
935
    bo_add_guid ( &bo, &asf_object_codec_comment_guid );
936
    bo_addle_u64( &bo, i_ci_size );
937
    bo_add_guid ( &bo, &asf_object_codec_comment_reserved_guid );
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
    bo_addle_u32( &bo, p_sys->i_track - 1 );
    for( i = 1; i < p_sys->i_track; i++ )
    {
        tk = &p_sys->track[i];

        bo_addle_u16( &bo, tk->i_id );
        bo_addle_str16( &bo, tk->psz_name );
        bo_addle_u16( &bo, 0 );
        if( tk->i_cat == AUDIO_ES )
        {
            bo_addle_u16( &bo, 2 );
            bo_addle_u16( &bo, tk->i_tag );
        }
        else if( tk->i_cat == VIDEO_ES )
        {
            bo_addle_u16( &bo, 4 );
            bo_add_mem  ( &bo, (uint8_t*)&tk->i_fourcc, 4 );

        }
    }

959
960
961
962
963
964
965
966
967
968
969
970
971
    /* data object */
    bo_add_guid ( &bo, &asf_object_data_guid );
    bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
    bo_add_guid ( &bo, &p_sys->fid );
    bo_addle_u64( &bo, p_sys->i_packet_count );
    bo_addle_u16( &bo, 0x101 );

    return out;
}

/****************************************************************************
 *
 ****************************************************************************/
972
973
static block_t *asf_packet_create( sout_mux_t *p_mux,
                                         asf_track_t *tk, block_t *data )
974
975
976
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

977
    int     i_data = data->i_buffer;
978
979
    int     i_pos  = 0;
    uint8_t *p_data= data->p_buffer;
980
    block_t *first = NULL, **last = &first;
981
    int     i_preheader = p_sys->b_asf_http ? 12 : 0;
982
983
984
985
986
987
988
989

    while( i_pos < i_data )
    {
        bo_t          bo;
        int           i_payload;

        if( p_sys->pk == NULL )
        {
990
991
            p_sys->pk = block_New( p_mux,
                                   p_sys->i_packet_size + i_preheader);
992
            /* reserve 14 bytes for the packet header */
993
            p_sys->i_pk_used = 14 + i_preheader;
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
            p_sys->i_pk_frame = 0;
            p_sys->i_pk_dts = data->i_dts;
        }


        bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
                      p_sys->i_packet_size - p_sys->i_pk_used );

        /* add payload (header size = 17) */
        i_payload = __MIN( i_data - i_pos,
                           p_sys->i_packet_size - p_sys->i_pk_used - 17 );
        bo_add_u8   ( &bo, 0x80 | tk->i_id );
        bo_add_u8   ( &bo, tk->i_sequence );
        bo_addle_u32( &bo, i_pos );
        bo_add_u8   ( &bo, 0x08 );  /* flags */
        bo_addle_u32( &bo, i_data );
        bo_addle_u32( &bo, ( data->i_dts - p_sys->i_dts_first )/ 1000 );
        bo_addle_u16( &bo, i_payload );
        bo_add_mem  ( &bo, &p_data[i_pos], i_payload );
        i_pos += i_payload;
        p_sys->i_pk_used += 17 + i_payload;

        p_sys->i_pk_frame++;

1018
        if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1019
1020
1021
1022
        {
            /* not enough data for another payload, flush the packet */
            int i_pad = p_sys->i_packet_size - p_sys->i_pk_used;

1023
1024
1025
1026
1027
1028
1029
            bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );

            if( p_sys->b_asf_http )
            {
                asf_chunk_add( &bo, 0x4424,
                               p_sys->i_packet_size, 0x00, p_sys->i_seq++);
            }
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
            bo_add_u8   ( &bo, 0x82 );
            bo_addle_u16( &bo, 0 );
            bo_add_u8( &bo, 0x11 );
            bo_add_u8( &bo, 0x5d );
            bo_addle_u16( &bo, i_pad );
            bo_addle_u32( &bo, ( p_sys->i_pk_dts - p_sys->i_dts_first )/ 1000 );
            bo_addle_u16( &bo, 0 * data->i_length / 1000 );
            bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );

            /* append the packet */
            *last = p_sys->pk;
            last  = &p_sys->pk->p_next;

            p_sys->pk = NULL;

            p_sys->i_packet_count++;
        }
    }

    tk->i_sequence++;
1050
    block_Release( data );
1051
1052
1053
1054

    return first;
}

1055
static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1056
1057
1058
{
    sout_mux_sys_t *p_sys = p_mux->p_sys;

1059
    block_t *out = NULL;
1060
    bo_t          bo;
1061

1062
1063
    if( p_sys->b_asf_http )
    {
1064
        out = block_New( p_mux, 12 );
1065
1066
1067
1068
1069
        bo_init( &bo, out->p_buffer, 12 );
        asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
    }
    return out;
}