git.sesse.net Git - vlc/blob - modules/mux/avi.c

   1 /*****************************************************************************
   2  * avi.c
   3  *****************************************************************************
   4  * Copyright (C) 2001, 2002 VideoLAN
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir@via.ecp.fr>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 /* TODO: add OpenDML write support */
  28
  29 #include <stdlib.h>
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc/input.h>
  33 #include <vlc/sout.h>
  34
  35 #include "codecs.h"
  36
  37 /*****************************************************************************
  38  * Module descriptor
  39  *****************************************************************************/
  40 static int  Open   ( vlc_object_t * );
  41 static void Close  ( vlc_object_t * );
  42
  43 vlc_module_begin();
  44     set_description( _("AVI muxer") );
  45     set_capability( "sout mux", 5 );
  46     add_shortcut( "avi" );
  47     set_callbacks( Open, Close );
  48 vlc_module_end();
  49
  50
  51 /*****************************************************************************
  52  * Local prototypes
  53  *****************************************************************************/
  54 static int  Capability(sout_mux_t *, int , void *, void * );
  55 static int  AddStream( sout_mux_t *, sout_input_t * );
  56 static int  DelStream( sout_mux_t *, sout_input_t * );
  57 static int  Mux      ( sout_mux_t * );
  58
  59 typedef struct avi_stream_s
  60 {
  61     int i_cat;
  62
  63     char fcc[4];
  64
  65     mtime_t i_duration;       // in µs
  66
  67     int     i_frames;        // total frame count
  68     int64_t i_totalsize;    // total stream size
  69
  70     float   f_fps;
  71     int     i_bitrate;
  72
  73     BITMAPINFOHEADER    *p_bih;
  74     WAVEFORMATEX        *p_wf;
  75
  76 } avi_stream_t;
  77
  78 typedef struct avi_idx1_entry_s
  79 {
  80     char     fcc[4];
  81     uint32_t i_flags;
  82     uint32_t i_pos;
  83     uint32_t i_length;
  84
  85 } avi_idx1_entry_t;
  86
  87 typedef struct avi_idx1_s
  88 {
  89     unsigned int i_entry_count;
  90     unsigned int i_entry_max;
  91
  92     avi_idx1_entry_t *entry;
  93 } avi_idx1_t;
  94
  95 struct sout_mux_sys_t
  96 {
  97     vlc_bool_t b_write_header;
  98
  99     int i_streams;
 100     int i_stream_video;
 101
 102     off_t i_movi_size;
 103     avi_stream_t stream[100];
 104
 105     avi_idx1_t idx1;
 106     off_t i_idx1_size;
 107
 108 };
 109
 110 // FIXME FIXME
 111 #define HDR_SIZE 10240
 112
 113 /* Flags in avih */
 114 #define AVIF_HASINDEX       0x00000010  // Index at end of file?
 115 #define AVIF_ISINTERLEAVED  0x00000100
 116 #define AVIF_TRUSTCKTYPE    0x00000800  // Use CKType to find key frames?
 117
 118 /* Flags for index */
 119 #define AVIIF_KEYFRAME      0x00000010L /* this frame is a key frame.*/
 120
 121
 122 static block_t *avi_HeaderCreateRIFF( sout_mux_t * );
 123 static block_t *avi_HeaderCreateidx1( sout_mux_t * );
 124
 125 static void SetFCC( uint8_t *p, char *fcc )
 126 {
 127     memcpy( p, fcc, 4 );
 128 }
 129
 130 /*****************************************************************************
 131  * Open:
 132  *****************************************************************************/
 133 static int Open( vlc_object_t *p_this )
 134 {
 135     sout_mux_t      *p_mux = (sout_mux_t*)p_this;
 136     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 137
 138     msg_Dbg( p_mux, "AVI muxer opened" );
 139
 140     p_sys = malloc( sizeof( sout_mux_sys_t ) );
 141     p_sys->i_streams = 0;
 142     p_sys->i_stream_video = -1;
 143     p_sys->i_movi_size = 0;
 144
 145     p_sys->idx1.i_entry_count = 0;
 146     p_sys->idx1.i_entry_max = 10000;
 147     p_sys->idx1.entry = calloc( p_sys->idx1.i_entry_max,
 148                                 sizeof( avi_idx1_entry_t ) );
 149     p_sys->b_write_header = VLC_TRUE;
 150
 151
 152     p_mux->pf_capacity  = Capability;
 153     p_mux->pf_addstream = AddStream;
 154     p_mux->pf_delstream = DelStream;
 155     p_mux->pf_mux       = Mux;
 156     p_mux->p_sys        = p_sys;
 157
 158     return VLC_SUCCESS;
 159 }
 160
 161 /*****************************************************************************
 162  * Close:
 163  *****************************************************************************/
 164 static void Close( vlc_object_t * p_this )
 165 {
 166     sout_mux_t      *p_mux = (sout_mux_t*)p_this;
 167     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 168
 169     block_t       *p_hdr, *p_idx1;
 170     int                 i_stream;
 171
 172     msg_Dbg( p_mux, "AVI muxer closed" );
 173
 174     /* first create idx1 chunk (write at the end of the stream */
 175     p_idx1 = avi_HeaderCreateidx1( p_mux );
 176     p_sys->i_idx1_size = p_idx1->i_buffer;
 177     sout_AccessOutWrite( p_mux->p_access, p_idx1 );
 178
 179     /* calculate some value for headers creations */
 180     for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
 181     {
 182         avi_stream_t *p_stream;
 183
 184         p_stream = &p_sys->stream[i_stream];
 185
 186         p_stream->f_fps = 25;
 187         if( p_stream->i_duration > 0 )
 188         {
 189             p_stream->f_fps = (float)p_stream->i_frames /
 190                               ( (float)p_stream->i_duration /
 191                                 (float)1000000 );
 192         }
 193         p_stream->i_bitrate = 128 * 1024;
 194         if( p_stream->i_duration > 0 )
 195         {
 196             p_stream->i_bitrate =
 197                 8 * (uint64_t)1000000 *
 198                     (uint64_t)p_stream->i_totalsize /
 199                     (uint64_t)p_stream->i_duration;
 200         }
 201         msg_Info( p_mux, "stream[%d] duration:"I64Fd" totalsize:"I64Fd
 202                   " frames:%d fps:%f kb/s:%d",
 203                   i_stream,
 204                   (int64_t)p_stream->i_duration / (int64_t)1000000,
 205                   p_stream->i_totalsize,
 206                   p_stream->i_frames,
 207                   p_stream->f_fps, p_stream->i_bitrate/1024 );
 208     }
 209
 210     p_hdr = avi_HeaderCreateRIFF( p_mux );
 211     sout_AccessOutSeek( p_mux->p_access, 0 );
 212     sout_AccessOutWrite( p_mux->p_access, p_hdr );
 213 }
 214
 215 static int Capability( sout_mux_t *p_mux, int i_query,
 216                        void *p_args, void *p_answer )
 217 {
 218    switch( i_query )
 219    {
 220         case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
 221             *(vlc_bool_t*)p_answer = VLC_FALSE;
 222             return( SOUT_MUX_CAP_ERR_OK );
 223         default:
 224             return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
 225    }
 226 }
 227
 228 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
 229 {
 230     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 231     avi_stream_t    *p_stream;
 232
 233     if( p_sys->i_streams >= 100 )
 234     {
 235         msg_Err( p_mux, "too many streams" );
 236         return( -1 );
 237     }
 238
 239     msg_Dbg( p_mux, "adding input" );
 240     p_input->p_sys = malloc( sizeof( int ) );
 241
 242     *((int*)p_input->p_sys) = p_sys->i_streams;
 243     p_stream = &p_sys->stream[p_sys->i_streams];
 244
 245     switch( p_input->p_fmt->i_cat )
 246     {
 247         case AUDIO_ES:
 248             p_stream->i_cat = AUDIO_ES;
 249             p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
 250             p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
 251             p_stream->fcc[2] = 'w';
 252             p_stream->fcc[3] = 'b';
 253
 254             p_stream->p_bih = NULL;
 255
 256             p_stream->p_wf  = malloc( sizeof( WAVEFORMATEX ) +
 257                                       p_input->p_fmt->i_extra );
 258 #define p_wf p_stream->p_wf
 259             p_wf->cbSize = p_input->p_fmt->i_extra;
 260             if( p_wf->cbSize > 0 )
 261             {
 262                 memcpy( &p_wf[1],
 263                         p_input->p_fmt->p_extra,
 264                         p_input->p_fmt->i_extra );
 265             }
 266             p_wf->nChannels      = p_input->p_fmt->audio.i_channels;
 267             p_wf->nSamplesPerSec = p_input->p_fmt->audio.i_rate;
 268             p_wf->nBlockAlign    = p_input->p_fmt->audio.i_blockalign;
 269             p_wf->nAvgBytesPerSec= p_input->p_fmt->i_bitrate / 8;
 270             p_wf->wBitsPerSample = 0;
 271
 272             switch( p_input->p_fmt->i_codec )
 273             {
 274                 case VLC_FOURCC( 'a', '5', '2', ' ' ):
 275                     p_wf->wFormatTag = WAVE_FORMAT_A52;
 276                     break;
 277                 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
 278                     p_wf->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
 279                     break;
 280                 case VLC_FOURCC( 'w', 'm', 'a', '1' ):
 281                     p_wf->wFormatTag = WAVE_FORMAT_WMA1;
 282                     break;
 283                 case VLC_FOURCC( 'w', 'm', 'a', '2' ):
 284                     p_wf->wFormatTag = WAVE_FORMAT_WMA2;
 285                     break;
 286                 case VLC_FOURCC( 'w', 'm', 'a', '3' ):
 287                     p_wf->wFormatTag = WAVE_FORMAT_WMA3;
 288                     break;
 289                     /* raw codec */
 290                 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
 291                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 292                     p_wf->nBlockAlign= p_wf->nChannels;
 293                     p_wf->wBitsPerSample = 8;
 294                     break;
 295                 case VLC_FOURCC( 's', '1', '6', 'l' ):
 296                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 297                     p_wf->nBlockAlign= 2 * p_wf->nChannels;
 298                     p_wf->wBitsPerSample = 16;
 299                     break;
 300                 case VLC_FOURCC( 's', '2', '4', 'l' ):
 301                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 302                     p_wf->nBlockAlign= 3 * p_wf->nChannels;
 303                     p_wf->wBitsPerSample = 24;
 304                     break;
 305                 case VLC_FOURCC( 's', '3', '2', 'l' ):
 306                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 307                     p_wf->nBlockAlign= 4 * p_wf->nChannels;
 308                     p_wf->wBitsPerSample = 32;
 309                     break;
 310                 default:
 311                     return VLC_EGENERIC;
 312             }
 313 #undef p_wf
 314             break;
 315         case VIDEO_ES:
 316             p_stream->i_cat = VIDEO_ES;
 317             p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
 318             p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
 319             p_stream->fcc[2] = 'd';
 320             p_stream->fcc[3] = 'c';
 321             if( p_sys->i_stream_video < 0 )
 322             {
 323                 p_sys->i_stream_video = p_sys->i_streams;
 324             }
 325             p_stream->p_wf  = NULL;
 326             p_stream->p_bih = malloc( sizeof( BITMAPINFOHEADER ) +
 327                                       p_input->p_fmt->i_extra );
 328 #define p_bih p_stream->p_bih
 329             p_bih->biSize  = sizeof( BITMAPINFOHEADER ) +
 330                              p_input->p_fmt->i_extra;
 331             if( p_input->p_fmt->i_extra > 0 )
 332             {
 333                 memcpy( &p_bih[1],
 334                         p_input->p_fmt->p_extra,
 335                         p_input->p_fmt->i_extra );
 336             }
 337             p_bih->biWidth = p_input->p_fmt->video.i_width;
 338             p_bih->biHeight= p_input->p_fmt->video.i_height;
 339             p_bih->biPlanes= 1;
 340             p_bih->biBitCount       = 24;
 341             p_bih->biSizeImage      = 0;
 342             p_bih->biXPelsPerMeter  = 0;
 343             p_bih->biYPelsPerMeter  = 0;
 344             p_bih->biClrUsed        = 0;
 345             p_bih->biClrImportant   = 0;
 346             switch( p_input->p_fmt->i_codec )
 347             {
 348                 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
 349                     p_bih->biCompression = VLC_FOURCC( 'X', 'V', 'I', 'D' );
 350                     break;
 351                 default:
 352                     p_bih->biCompression = p_input->p_fmt->i_codec;
 353                     break;
 354             }
 355 #undef p_bih
 356             break;
 357         default:
 358             return( VLC_EGENERIC );
 359     }
 360     p_stream->i_totalsize = 0;
 361     p_stream->i_frames    = 0;
 362     p_stream->i_duration  = 0;
 363
 364     /* fixed later */
 365     p_stream->f_fps = 25;
 366     p_stream->i_bitrate = 128 * 1024;
 367
 368     p_sys->i_streams++;
 369     return( VLC_SUCCESS );
 370 }
 371
 372 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
 373 {
 374
 375     msg_Dbg( p_mux, "removing input" );
 376
 377     free( p_input->p_sys );
 378     return( 0 );
 379 }
 380
 381 static int Mux      ( sout_mux_t *p_mux )
 382 {
 383     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 384     avi_stream_t    *p_stream;
 385     int i_stream;
 386     int i;
 387
 388     if( p_sys->b_write_header )
 389     {
 390         block_t *p_hdr;
 391
 392         msg_Dbg( p_mux, "writing header" );
 393
 394         p_hdr = avi_HeaderCreateRIFF( p_mux );
 395         sout_AccessOutWrite( p_mux->p_access, p_hdr );
 396
 397         p_sys->b_write_header = VLC_FALSE;
 398     }
 399
 400     for( i = 0; i < p_mux->i_nb_inputs; i++ )
 401     {
 402         int i_count;
 403         block_fifo_t *p_fifo;
 404
 405         i_stream = *((int*)p_mux->pp_inputs[i]->p_sys );
 406         p_stream = &p_sys->stream[i_stream];
 407
 408         p_fifo = p_mux->pp_inputs[i]->p_fifo;
 409         i_count = p_fifo->i_depth;
 410         while( i_count > 0 )
 411         {
 412             avi_idx1_entry_t *p_idx;
 413             block_t *p_data;
 414
 415             p_data = block_FifoGet( p_fifo );
 416             if( p_fifo->i_depth > 0 )
 417             {
 418                 block_t *p_next = block_FifoShow( p_fifo );
 419                 p_data->i_length = p_next->i_dts - p_data->i_dts;
 420             }
 421
 422             p_stream->i_frames++;
 423             if( p_data->i_length < 0 )
 424             {
 425                 msg_Warn( p_mux, "argg length < 0 l" );
 426                 block_Release( p_data );
 427                 i_count--;
 428                 continue;
 429             }
 430             p_stream->i_duration  += p_data->i_length;
 431             p_stream->i_totalsize += p_data->i_buffer;
 432
 433             /* add idx1 entry for this frame */
 434             p_idx = &p_sys->idx1.entry[p_sys->idx1.i_entry_count];
 435             memcpy( p_idx->fcc, p_stream->fcc, 4 );
 436             p_idx->i_flags = AVIIF_KEYFRAME;
 437             p_idx->i_pos   = p_sys->i_movi_size + 4;
 438             p_idx->i_length= p_data->i_buffer;
 439             p_sys->idx1.i_entry_count++;
 440             if( p_sys->idx1.i_entry_count >= p_sys->idx1.i_entry_max )
 441             {
 442                 p_sys->idx1.i_entry_max += 10000;
 443                 p_sys->idx1.entry = realloc( p_sys->idx1.entry,
 444                                              p_sys->idx1.i_entry_max * sizeof( avi_idx1_entry_t ) );
 445             }
 446
 447             p_data = block_Realloc( p_data, 8, p_data->i_buffer );
 448             if( p_data )
 449             {
 450                 SetFCC( p_data->p_buffer, p_stream->fcc );
 451                 SetDWLE( p_data->p_buffer + 4, p_data->i_buffer - 8 );
 452
 453                 if( p_data->i_buffer & 0x01 )
 454                 {
 455                     p_data = block_Realloc( p_data, 0, p_data->i_buffer + 1 );
 456                 }
 457
 458                 p_sys->i_movi_size += p_data->i_buffer;
 459                 sout_AccessOutWrite( p_mux->p_access, p_data );
 460             }
 461
 462             i_count--;
 463         }
 464
 465     }
 466     return( 0 );
 467 }
 468
 469 /****************************************************************************/
 470 /****************************************************************************/
 471 /****************************************************************************/
 472 /****************************************************************************/
 473
 474 typedef struct buffer_out_s
 475 {
 476     int      i_buffer_size;
 477     int      i_buffer;
 478     uint8_t  *p_buffer;
 479
 480 } buffer_out_t;
 481
 482 static void bo_Init( buffer_out_t *p_bo, int i_size, uint8_t *p_buffer )
 483 {
 484     p_bo->i_buffer_size = i_size;
 485     p_bo->i_buffer = 0;
 486     p_bo->p_buffer = p_buffer;
 487 }
 488 static void bo_AddByte( buffer_out_t *p_bo, uint8_t i )
 489 {
 490     if( p_bo->i_buffer < p_bo->i_buffer_size )
 491     {
 492         p_bo->p_buffer[p_bo->i_buffer] = i;
 493     }
 494     p_bo->i_buffer++;
 495 }
 496 static void bo_AddWordLE( buffer_out_t *p_bo, uint16_t i )
 497 {
 498     bo_AddByte( p_bo, i &0xff );
 499     bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
 500 }
 501 static void bo_AddWordBE( buffer_out_t *p_bo, uint16_t i )
 502 {
 503     bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
 504     bo_AddByte( p_bo, i &0xff );
 505 }
 506 static void bo_AddDWordLE( buffer_out_t *p_bo, uint32_t i )
 507 {
 508     bo_AddWordLE( p_bo, i &0xffff );
 509     bo_AddWordLE( p_bo, ( ( i >> 16) &0xffff ) );
 510 }
 511 static void bo_AddDWordBE( buffer_out_t *p_bo, uint32_t i )
 512 {
 513     bo_AddWordBE( p_bo, ( ( i >> 16) &0xffff ) );
 514     bo_AddWordBE( p_bo, i &0xffff );
 515 }
 516 #if 0
 517 static void bo_AddLWordLE( buffer_out_t *p_bo, uint64_t i )
 518 {
 519     bo_AddDWordLE( p_bo, i &0xffffffff );
 520     bo_AddDWordLE( p_bo, ( ( i >> 32) &0xffffffff ) );
 521 }
 522 static void bo_AddLWordBE( buffer_out_t *p_bo, uint64_t i )
 523 {
 524     bo_AddDWordBE( p_bo, ( ( i >> 32) &0xffffffff ) );
 525     bo_AddDWordBE( p_bo, i &0xffffffff );
 526 }
 527 #endif
 528
 529 static void bo_AddFCC( buffer_out_t *p_bo, char *fcc )
 530 {
 531     bo_AddByte( p_bo, fcc[0] );
 532     bo_AddByte( p_bo, fcc[1] );
 533     bo_AddByte( p_bo, fcc[2] );
 534     bo_AddByte( p_bo, fcc[3] );
 535 }
 536
 537 static void bo_AddMem( buffer_out_t *p_bo, int i_size, uint8_t *p_mem )
 538 {
 539     int i;
 540
 541     for( i = 0; i < i_size; i++ )
 542     {
 543         bo_AddByte( p_bo, p_mem[i] );
 544     }
 545 }
 546
 547 /****************************************************************************
 548  ****************************************************************************
 549  **
 550  ** avi header generation
 551  **
 552  ****************************************************************************
 553  ****************************************************************************/
 554 #define AVI_BOX_ENTER( fcc ) \
 555     buffer_out_t _bo_sav_; \
 556     bo_AddFCC( p_bo, fcc ); \
 557     _bo_sav_ = *p_bo; \
 558     bo_AddDWordLE( p_bo, 0 )
 559
 560 #define AVI_BOX_ENTER_LIST( fcc ) \
 561     AVI_BOX_ENTER( "LIST" ); \
 562     bo_AddFCC( p_bo, fcc )
 563
 564 #define AVI_BOX_EXIT( i_err ) \
 565     if( p_bo->i_buffer&0x01 ) bo_AddByte( p_bo, 0 ); \
 566     bo_AddDWordLE( &_bo_sav_, p_bo->i_buffer - _bo_sav_.i_buffer - 4 ); \
 567     return( i_err );
 568
 569 static int avi_HeaderAdd_avih( sout_mux_t *p_mux,
 570                                buffer_out_t *p_bo )
 571 {
 572     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 573     avi_stream_t    *p_video = NULL;
 574     int         i_stream;
 575     uint32_t    i_microsecperframe;
 576     int         i_maxbytespersec;
 577     int         i_totalframes;
 578     AVI_BOX_ENTER( "avih" );
 579
 580     if( p_sys->i_stream_video >= 0 )
 581     {
 582         p_video = &p_sys->stream[p_sys->i_stream_video];
 583         if( p_video->i_frames <= 0 )
 584         {
 585         //    p_video = NULL;
 586         }
 587     }
 588
 589     if( p_video )
 590     {
 591         i_microsecperframe =
 592             (uint32_t)( (float)1000000 /
 593                         (float)p_sys->stream[p_sys->i_stream_video].f_fps );
 594         i_totalframes = p_sys->stream[p_sys->i_stream_video].i_frames;
 595     }
 596     else
 597     {
 598         msg_Warn( p_mux, "avi file without video track isn't a good idea..." );
 599         i_microsecperframe = 0;
 600         i_totalframes = 0;
 601     }
 602
 603     for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
 604     {
 605         if( p_sys->stream[i_stream].i_duration > 0 )
 606         {
 607             i_maxbytespersec +=
 608                 p_sys->stream[p_sys->i_stream_video].i_totalsize /
 609                 p_sys->stream[p_sys->i_stream_video].i_duration;
 610         }
 611     }
 612
 613     bo_AddDWordLE( p_bo, i_microsecperframe );
 614     bo_AddDWordLE( p_bo, i_maxbytespersec );
 615     bo_AddDWordLE( p_bo, 0 );                   /* padding */
 616     bo_AddDWordLE( p_bo, AVIF_TRUSTCKTYPE |
 617                          AVIF_HASINDEX |
 618                          AVIF_ISINTERLEAVED );  /* flags */
 619     bo_AddDWordLE( p_bo, i_totalframes );
 620     bo_AddDWordLE( p_bo, 0 );                   /* initial frame */
 621     bo_AddDWordLE( p_bo, p_sys->i_streams );    /* streams count */
 622     bo_AddDWordLE( p_bo, 1024 * 1024 );         /* suggested buffer size */
 623     if( p_video )
 624     {
 625         bo_AddDWordLE( p_bo, p_video->p_bih->biWidth );
 626         bo_AddDWordLE( p_bo, p_video->p_bih->biHeight );
 627     }
 628     else
 629     {
 630         bo_AddDWordLE( p_bo, 0 );
 631         bo_AddDWordLE( p_bo, 0 );
 632     }
 633     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 634     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 635     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 636     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 637
 638     AVI_BOX_EXIT( 0 );
 639 }
 640 static int avi_HeaderAdd_strh( sout_mux_t   *p_mux,
 641                                buffer_out_t *p_bo,
 642                                avi_stream_t *p_stream )
 643 {
 644     AVI_BOX_ENTER( "strh" );
 645
 646     switch( p_stream->i_cat )
 647     {
 648         case VIDEO_ES:
 649             {
 650                 bo_AddFCC( p_bo, "vids" );
 651                 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
 652                 bo_AddDWordLE( p_bo, 0 );   /* flags */
 653                 bo_AddWordLE(  p_bo, 0 );   /* priority */
 654                 bo_AddWordLE(  p_bo, 0 );   /* langage */
 655                 bo_AddDWordLE( p_bo, 0 );   /* initial frame */
 656                 bo_AddDWordLE( p_bo, 1000 );/* scale */
 657                 bo_AddDWordLE( p_bo, (uint32_t)( 1000 * p_stream->f_fps ));
 658                 bo_AddDWordLE( p_bo, 0 );   /* start */
 659                 bo_AddDWordLE( p_bo, p_stream->i_frames );
 660                 bo_AddDWordLE( p_bo, 1024 * 1024 );
 661                 bo_AddDWordLE( p_bo, -1 );  /* quality */
 662                 bo_AddDWordLE( p_bo, 0 );   /* samplesize */
 663                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 664                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 665                 bo_AddWordLE(  p_bo, p_stream->p_bih->biWidth );
 666                 bo_AddWordLE(  p_bo, p_stream->p_bih->biHeight );
 667             }
 668             break;
 669         case AUDIO_ES:
 670             {
 671                 int i_rate, i_scale, i_samplesize;
 672
 673                 i_samplesize = p_stream->p_wf->nBlockAlign;
 674                 if( i_samplesize > 1 )
 675                 {
 676                     i_scale = i_samplesize;
 677                     i_rate = /*i_scale **/ p_stream->i_bitrate / 8;
 678                 }
 679                 else
 680                 {
 681                     i_samplesize = 1;
 682                     i_scale = 1000;
 683                     i_rate = 1000 * p_stream->i_bitrate / 8;
 684                 }
 685                 bo_AddFCC( p_bo, "auds" );
 686                 bo_AddDWordLE( p_bo, 0 );   /* tag */
 687                 bo_AddDWordLE( p_bo, 0 );   /* flags */
 688                 bo_AddWordLE(  p_bo, 0 );   /* priority */
 689                 bo_AddWordLE(  p_bo, 0 );   /* langage */
 690                 bo_AddDWordLE( p_bo, 0 );   /* initial frame */
 691                 bo_AddDWordLE( p_bo, i_scale );/* scale */
 692                 bo_AddDWordLE( p_bo, i_rate );
 693                 bo_AddDWordLE( p_bo, 0 );   /* start */
 694                 bo_AddDWordLE( p_bo, p_stream->i_frames );
 695                 bo_AddDWordLE( p_bo, 10 * 1024 );
 696                 bo_AddDWordLE( p_bo, -1 );  /* quality */
 697                 bo_AddDWordLE( p_bo, i_samplesize );
 698                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 699                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 700                 bo_AddWordLE(  p_bo, 0 );
 701                 bo_AddWordLE(  p_bo, 0 );
 702             }
 703             break;
 704     }
 705
 706     AVI_BOX_EXIT( 0 );
 707 }
 708
 709 static int avi_HeaderAdd_strf( sout_mux_t *p_mux,
 710                                buffer_out_t *p_bo,
 711                                avi_stream_t *p_stream )
 712 {
 713     AVI_BOX_ENTER( "strf" );
 714
 715     switch( p_stream->i_cat )
 716     {
 717         case AUDIO_ES:
 718             bo_AddWordLE( p_bo, p_stream->p_wf->wFormatTag );
 719             bo_AddWordLE( p_bo, p_stream->p_wf->nChannels );
 720             bo_AddDWordLE( p_bo, p_stream->p_wf->nSamplesPerSec );
 721             bo_AddDWordLE( p_bo, p_stream->p_wf->nAvgBytesPerSec );
 722             bo_AddWordLE( p_bo, p_stream->p_wf->nBlockAlign );
 723             bo_AddWordLE( p_bo, p_stream->p_wf->wBitsPerSample );
 724             bo_AddWordLE( p_bo, p_stream->p_wf->cbSize );
 725             bo_AddMem( p_bo, p_stream->p_wf->cbSize, (uint8_t*)&p_stream->p_wf[1] );
 726             break;
 727         case VIDEO_ES:
 728             bo_AddDWordLE( p_bo, p_stream->p_bih->biSize );
 729             bo_AddDWordLE( p_bo, p_stream->p_bih->biWidth );
 730             bo_AddDWordLE( p_bo, p_stream->p_bih->biHeight );
 731             bo_AddWordLE( p_bo, p_stream->p_bih->biPlanes );
 732             bo_AddWordLE( p_bo, p_stream->p_bih->biBitCount );
 733             if( VLC_FOURCC( 0, 0, 0, 1 ) == 0x00000001 )
 734             {
 735                 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
 736             }
 737             else
 738             {
 739                 bo_AddDWordLE( p_bo, p_stream->p_bih->biCompression );
 740             }
 741             bo_AddDWordLE( p_bo, p_stream->p_bih->biSizeImage );
 742             bo_AddDWordLE( p_bo, p_stream->p_bih->biXPelsPerMeter );
 743             bo_AddDWordLE( p_bo, p_stream->p_bih->biYPelsPerMeter );
 744             bo_AddDWordLE( p_bo, p_stream->p_bih->biClrUsed );
 745             bo_AddDWordLE( p_bo, p_stream->p_bih->biClrImportant );
 746             bo_AddMem( p_bo,
 747                        p_stream->p_bih->biSize - sizeof( BITMAPINFOHEADER ),
 748                        (uint8_t*)&p_stream->p_bih[1] );
 749             break;
 750     }
 751
 752     AVI_BOX_EXIT( 0 );
 753 }
 754
 755 static int avi_HeaderAdd_strl( sout_mux_t *p_mux,
 756                                buffer_out_t *p_bo,
 757                                avi_stream_t *p_stream )
 758 {
 759     AVI_BOX_ENTER_LIST( "strl" );
 760
 761     avi_HeaderAdd_strh( p_mux, p_bo, p_stream );
 762     avi_HeaderAdd_strf( p_mux, p_bo, p_stream );
 763
 764     AVI_BOX_EXIT( 0 );
 765 }
 766
 767 static block_t *avi_HeaderCreateRIFF( sout_mux_t *p_mux )
 768 {
 769     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 770     block_t       *p_hdr;
 771     int                 i_stream;
 772     int                 i_maxbytespersec;
 773     int                 i_junk;
 774     buffer_out_t        bo;
 775
 776     p_hdr = block_New( p_mux, HDR_SIZE );
 777     memset( p_hdr->p_buffer, 0, HDR_SIZE );
 778
 779     bo_Init( &bo, HDR_SIZE, p_hdr->p_buffer );
 780
 781     bo_AddFCC( &bo, "RIFF" );
 782     bo_AddDWordLE( &bo, p_sys->i_movi_size + HDR_SIZE - 8 + p_sys->i_idx1_size );
 783     bo_AddFCC( &bo, "AVI " );
 784
 785     bo_AddFCC( &bo, "LIST" );
 786     bo_AddDWordLE( &bo, HDR_SIZE - 8);
 787     bo_AddFCC( &bo, "hdrl" );
 788
 789     avi_HeaderAdd_avih( p_mux, &bo );
 790     for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
 791     {
 792         avi_HeaderAdd_strl( p_mux, &bo, &p_sys->stream[i_stream] );
 793     }
 794
 795     i_junk = HDR_SIZE - bo.i_buffer - 8 - 12;
 796     bo_AddFCC( &bo, "JUNK" );
 797     bo_AddDWordLE( &bo, i_junk );
 798
 799     bo.i_buffer += i_junk;
 800     bo_AddFCC( &bo, "LIST" );
 801     bo_AddDWordLE( &bo, p_sys->i_movi_size + 4 );
 802     bo_AddFCC( &bo, "movi" );
 803
 804     return( p_hdr );
 805 }
 806
 807 static block_t * avi_HeaderCreateidx1( sout_mux_t *p_mux )
 808 {
 809     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 810     block_t       *p_idx1;
 811     uint32_t            i_idx1_size;
 812     unsigned int        i;
 813     buffer_out_t        bo;
 814
 815     i_idx1_size = 16 * p_sys->idx1.i_entry_count;
 816
 817     p_idx1 = block_New( p_mux, i_idx1_size + 8 );
 818     memset( p_idx1->p_buffer, 0, i_idx1_size );
 819
 820     bo_Init( &bo, i_idx1_size, p_idx1->p_buffer );
 821     bo_AddFCC( &bo, "idx1" );
 822     bo_AddDWordLE( &bo, i_idx1_size );
 823
 824     for( i = 0; i < p_sys->idx1.i_entry_count; i++ )
 825     {
 826         bo_AddFCC( &bo, p_sys->idx1.entry[i].fcc );
 827         bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_flags );
 828         bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_pos );
 829         bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_length );
 830     }
 831
 832     return( p_idx1 );
 833 }
 834