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

   1 /*****************************************************************************
   2  * avi.c
   3  *****************************************************************************
   4  * Copyright (C) 2001, 2002 the VideoLAN team
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 /* TODO: add OpenDML write support */
  28
  29
  30 #ifdef HAVE_CONFIG_H
  31 # include "config.h"
  32 #endif
  33
  34 #include <vlc/vlc.h>
  35 #include <vlc_sout.h>
  36 #include <vlc_block.h>
  37 #include <vlc_codecs.h>
  38
  39 /*****************************************************************************
  40  * Module descriptor
  41  *****************************************************************************/
  42 static int  Open   ( vlc_object_t * );
  43 static void Close  ( vlc_object_t * );
  44
  45 vlc_module_begin();
  46     set_description( _("AVI muxer") );
  47     set_category( CAT_SOUT );
  48     set_subcategory( SUBCAT_SOUT_MUX );
  49     set_capability( "sout mux", 5 );
  50     add_shortcut( "avi" );
  51     set_callbacks( Open, Close );
  52 vlc_module_end();
  53
  54
  55 /*****************************************************************************
  56  * Local prototypes
  57  *****************************************************************************/
  58 static int Control( sout_mux_t *, int, va_list );
  59 static int AddStream( sout_mux_t *, sout_input_t * );
  60 static int DelStream( sout_mux_t *, sout_input_t * );
  61 static int Mux      ( sout_mux_t * );
  62
  63 typedef struct avi_stream_s
  64 {
  65     int i_cat;
  66
  67     char fcc[4];
  68
  69     mtime_t i_duration;       // in µs
  70
  71     int     i_frames;        // total frame count
  72     int64_t i_totalsize;    // total stream size
  73
  74     float   f_fps;
  75     int     i_bitrate;
  76
  77     BITMAPINFOHEADER    *p_bih;
  78     WAVEFORMATEX        *p_wf;
  79
  80 } avi_stream_t;
  81
  82 typedef struct avi_idx1_entry_s
  83 {
  84     char     fcc[4];
  85     uint32_t i_flags;
  86     uint32_t i_pos;
  87     uint32_t i_length;
  88
  89 } avi_idx1_entry_t;
  90
  91 typedef struct avi_idx1_s
  92 {
  93     unsigned int i_entry_count;
  94     unsigned int i_entry_max;
  95
  96     avi_idx1_entry_t *entry;
  97 } avi_idx1_t;
  98
  99 struct sout_mux_sys_t
 100 {
 101     vlc_bool_t b_write_header;
 102
 103     int i_streams;
 104     int i_stream_video;
 105
 106     off_t i_movi_size;
 107     avi_stream_t stream[100];
 108
 109     avi_idx1_t idx1;
 110     off_t i_idx1_size;
 111
 112 };
 113
 114 // FIXME FIXME
 115 #define HDR_SIZE 10240
 116
 117 /* Flags in avih */
 118 #define AVIF_HASINDEX       0x00000010  // Index at end of file?
 119 #define AVIF_ISINTERLEAVED  0x00000100
 120 #define AVIF_TRUSTCKTYPE    0x00000800  // Use CKType to find key frames?
 121
 122 /* Flags for index */
 123 #define AVIIF_KEYFRAME      0x00000010L /* this frame is a key frame.*/
 124
 125
 126 static block_t *avi_HeaderCreateRIFF( sout_mux_t * );
 127 static block_t *avi_HeaderCreateidx1( sout_mux_t * );
 128
 129 static void SetFCC( uint8_t *p, char *fcc )
 130 {
 131     memcpy( p, fcc, 4 );
 132 }
 133
 134 /*****************************************************************************
 135  * Open:
 136  *****************************************************************************/
 137 static int Open( vlc_object_t *p_this )
 138 {
 139     sout_mux_t      *p_mux = (sout_mux_t*)p_this;
 140     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 141
 142     msg_Dbg( p_mux, "AVI muxer opened" );
 143
 144     p_sys = malloc( sizeof( sout_mux_sys_t ) );
 145     p_sys->i_streams = 0;
 146     p_sys->i_stream_video = -1;
 147     p_sys->i_movi_size = 0;
 148
 149     p_sys->idx1.i_entry_count = 0;
 150     p_sys->idx1.i_entry_max = 10000;
 151     p_sys->idx1.entry = calloc( p_sys->idx1.i_entry_max,
 152                                 sizeof( avi_idx1_entry_t ) );
 153     p_sys->b_write_header = VLC_TRUE;
 154
 155
 156     p_mux->pf_control   = Control;
 157     p_mux->pf_addstream = AddStream;
 158     p_mux->pf_delstream = DelStream;
 159     p_mux->pf_mux       = Mux;
 160     p_mux->p_sys        = p_sys;
 161
 162     return VLC_SUCCESS;
 163 }
 164
 165 /*****************************************************************************
 166  * Close:
 167  *****************************************************************************/
 168 static void Close( vlc_object_t * p_this )
 169 {
 170     sout_mux_t      *p_mux = (sout_mux_t*)p_this;
 171     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 172
 173     block_t       *p_hdr, *p_idx1;
 174     int                 i_stream;
 175
 176     msg_Dbg( p_mux, "AVI muxer closed" );
 177
 178     /* first create idx1 chunk (write at the end of the stream */
 179     p_idx1 = avi_HeaderCreateidx1( p_mux );
 180     p_sys->i_idx1_size = p_idx1->i_buffer;
 181     sout_AccessOutWrite( p_mux->p_access, p_idx1 );
 182
 183     /* calculate some value for headers creations */
 184     for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
 185     {
 186         avi_stream_t *p_stream;
 187
 188         p_stream = &p_sys->stream[i_stream];
 189
 190         p_stream->f_fps = 25;
 191         if( p_stream->i_duration > 0 )
 192         {
 193             p_stream->f_fps = (float)p_stream->i_frames /
 194                               ( (float)p_stream->i_duration /
 195                                 (float)1000000 );
 196         }
 197         p_stream->i_bitrate = 128 * 1024;
 198         if( p_stream->i_duration > 0 )
 199         {
 200             p_stream->i_bitrate =
 201                 8 * (uint64_t)1000000 *
 202                     (uint64_t)p_stream->i_totalsize /
 203                     (uint64_t)p_stream->i_duration;
 204         }
 205         msg_Info( p_mux, "stream[%d] duration:"I64Fd" totalsize:"I64Fd
 206                   " frames:%d fps:%f kb/s:%d",
 207                   i_stream,
 208                   (int64_t)p_stream->i_duration / (int64_t)1000000,
 209                   p_stream->i_totalsize,
 210                   p_stream->i_frames,
 211                   p_stream->f_fps, p_stream->i_bitrate/1024 );
 212     }
 213
 214     p_hdr = avi_HeaderCreateRIFF( p_mux );
 215     sout_AccessOutSeek( p_mux->p_access, 0 );
 216     sout_AccessOutWrite( p_mux->p_access, p_hdr );
 217 }
 218
 219 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
 220 {
 221     VLC_UNUSED(p_mux);
 222     vlc_bool_t *pb_bool;
 223     char **ppsz;
 224
 225    switch( i_query )
 226    {
 227        case MUX_CAN_ADD_STREAM_WHILE_MUXING:
 228            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 229            *pb_bool = VLC_FALSE;
 230            return VLC_SUCCESS;
 231
 232        case MUX_GET_ADD_STREAM_WAIT:
 233            pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
 234            *pb_bool = VLC_TRUE;
 235            return VLC_SUCCESS;
 236
 237        case MUX_GET_MIME:
 238            ppsz = (char**)va_arg( args, char ** );
 239            *ppsz = strdup( "video/avi" );
 240            return VLC_SUCCESS;
 241
 242         default:
 243             return VLC_EGENERIC;
 244    }
 245 }
 246
 247 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
 248 {
 249     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 250     avi_stream_t    *p_stream;
 251
 252     if( p_sys->i_streams >= 100 )
 253     {
 254         msg_Err( p_mux, "too many streams" );
 255         return( -1 );
 256     }
 257
 258     msg_Dbg( p_mux, "adding input" );
 259     p_input->p_sys = malloc( sizeof( int ) );
 260
 261     *((int*)p_input->p_sys) = p_sys->i_streams;
 262     p_stream = &p_sys->stream[p_sys->i_streams];
 263
 264     switch( p_input->p_fmt->i_cat )
 265     {
 266         case AUDIO_ES:
 267             p_stream->i_cat = AUDIO_ES;
 268             p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
 269             p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
 270             p_stream->fcc[2] = 'w';
 271             p_stream->fcc[3] = 'b';
 272
 273             p_stream->p_bih = NULL;
 274
 275             p_stream->p_wf  = malloc( sizeof( WAVEFORMATEX ) +
 276                                       p_input->p_fmt->i_extra );
 277 #define p_wf p_stream->p_wf
 278             p_wf->cbSize = p_input->p_fmt->i_extra;
 279             if( p_wf->cbSize > 0 )
 280             {
 281                 memcpy( &p_wf[1],
 282                         p_input->p_fmt->p_extra,
 283                         p_input->p_fmt->i_extra );
 284             }
 285             p_wf->nChannels      = p_input->p_fmt->audio.i_channels;
 286             p_wf->nSamplesPerSec = p_input->p_fmt->audio.i_rate;
 287             p_wf->nBlockAlign    = p_input->p_fmt->audio.i_blockalign;
 288             p_wf->nAvgBytesPerSec= p_input->p_fmt->i_bitrate / 8;
 289             p_wf->wBitsPerSample = 0;
 290
 291             switch( p_input->p_fmt->i_codec )
 292             {
 293                 case VLC_FOURCC( 'a', '5', '2', ' ' ):
 294                     p_wf->wFormatTag = WAVE_FORMAT_A52;
 295                     break;
 296                 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
 297                     p_wf->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
 298                     break;
 299                 case VLC_FOURCC( 'w', 'm', 'a', '1' ):
 300                     p_wf->wFormatTag = WAVE_FORMAT_WMA1;
 301                     break;
 302                 case VLC_FOURCC( 'w', 'm', 'a', ' ' ):
 303                 case VLC_FOURCC( 'w', 'm', 'a', '2' ):
 304                     p_wf->wFormatTag = WAVE_FORMAT_WMA2;
 305                     break;
 306                 case VLC_FOURCC( 'w', 'm', 'a', 'p' ):
 307                     p_wf->wFormatTag = WAVE_FORMAT_WMAP;
 308                     break;
 309                 case VLC_FOURCC( 'w', 'm', 'a', 'l' ):
 310                     p_wf->wFormatTag = WAVE_FORMAT_WMAL;
 311                     break;
 312                     /* raw codec */
 313                 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
 314                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 315                     p_wf->nBlockAlign= p_wf->nChannels;
 316                     p_wf->wBitsPerSample = 8;
 317                     break;
 318                 case VLC_FOURCC( 's', '1', '6', 'l' ):
 319                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 320                     p_wf->nBlockAlign= 2 * p_wf->nChannels;
 321                     p_wf->wBitsPerSample = 16;
 322                     break;
 323                 case VLC_FOURCC( 's', '2', '4', 'l' ):
 324                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 325                     p_wf->nBlockAlign= 3 * p_wf->nChannels;
 326                     p_wf->wBitsPerSample = 24;
 327                     break;
 328                 case VLC_FOURCC( 's', '3', '2', 'l' ):
 329                     p_wf->wFormatTag = WAVE_FORMAT_PCM;
 330                     p_wf->nBlockAlign= 4 * p_wf->nChannels;
 331                     p_wf->wBitsPerSample = 32;
 332                     break;
 333                 default:
 334                     return VLC_EGENERIC;
 335             }
 336 #undef p_wf
 337             break;
 338         case VIDEO_ES:
 339             p_stream->i_cat = VIDEO_ES;
 340             p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
 341             p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
 342             p_stream->fcc[2] = 'd';
 343             p_stream->fcc[3] = 'c';
 344             if( p_sys->i_stream_video < 0 )
 345             {
 346                 p_sys->i_stream_video = p_sys->i_streams;
 347             }
 348             p_stream->p_wf  = NULL;
 349             p_stream->p_bih = malloc( sizeof( BITMAPINFOHEADER ) +
 350                                       p_input->p_fmt->i_extra );
 351 #define p_bih p_stream->p_bih
 352             p_bih->biSize  = sizeof( BITMAPINFOHEADER ) +
 353                              p_input->p_fmt->i_extra;
 354             if( p_input->p_fmt->i_extra > 0 )
 355             {
 356                 memcpy( &p_bih[1],
 357                         p_input->p_fmt->p_extra,
 358                         p_input->p_fmt->i_extra );
 359             }
 360             p_bih->biWidth = p_input->p_fmt->video.i_width;
 361             p_bih->biHeight= p_input->p_fmt->video.i_height;
 362             p_bih->biPlanes= 1;
 363             p_bih->biBitCount       = 24;
 364             p_bih->biSizeImage      = 0;
 365             p_bih->biXPelsPerMeter  = 0;
 366             p_bih->biYPelsPerMeter  = 0;
 367             p_bih->biClrUsed        = 0;
 368             p_bih->biClrImportant   = 0;
 369             switch( p_input->p_fmt->i_codec )
 370             {
 371                 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
 372                     p_bih->biCompression = VLC_FOURCC( 'X', 'V', 'I', 'D' );
 373                     break;
 374                 default:
 375                     p_bih->biCompression = p_input->p_fmt->i_codec;
 376                     break;
 377             }
 378 #undef p_bih
 379             break;
 380         default:
 381             return( VLC_EGENERIC );
 382     }
 383     p_stream->i_totalsize = 0;
 384     p_stream->i_frames    = 0;
 385     p_stream->i_duration  = 0;
 386
 387     /* fixed later */
 388     p_stream->f_fps = 25;
 389     p_stream->i_bitrate = 128 * 1024;
 390
 391     p_sys->i_streams++;
 392     return( VLC_SUCCESS );
 393 }
 394
 395 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
 396 {
 397
 398     msg_Dbg( p_mux, "removing input" );
 399
 400     free( p_input->p_sys );
 401     return( 0 );
 402 }
 403
 404 static int Mux      ( sout_mux_t *p_mux )
 405 {
 406     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 407     avi_stream_t    *p_stream;
 408     int i_stream, i;
 409
 410     if( p_sys->b_write_header )
 411     {
 412         block_t *p_hdr;
 413
 414         msg_Dbg( p_mux, "writing header" );
 415
 416         p_hdr = avi_HeaderCreateRIFF( p_mux );
 417         sout_AccessOutWrite( p_mux->p_access, p_hdr );
 418
 419         p_sys->b_write_header = VLC_FALSE;
 420     }
 421
 422     for( i = 0; i < p_mux->i_nb_inputs; i++ )
 423     {
 424         int i_count;
 425         block_fifo_t *p_fifo;
 426
 427         i_stream = *((int*)p_mux->pp_inputs[i]->p_sys );
 428         p_stream = &p_sys->stream[i_stream];
 429
 430         p_fifo = p_mux->pp_inputs[i]->p_fifo;
 431         i_count = block_FifoCount(  p_fifo );
 432         while( i_count > 1 )
 433         {
 434             avi_idx1_entry_t *p_idx;
 435             block_t *p_data;
 436
 437             p_data = block_FifoGet( p_fifo );
 438             if( block_FifoCount( p_fifo ) > 0 )
 439             {
 440                 block_t *p_next = block_FifoShow( p_fifo );
 441                 p_data->i_length = p_next->i_dts - p_data->i_dts;
 442             }
 443
 444             p_stream->i_frames++;
 445             if( p_data->i_length < 0 )
 446             {
 447                 msg_Warn( p_mux, "argg length < 0 l" );
 448                 block_Release( p_data );
 449                 i_count--;
 450                 continue;
 451             }
 452             p_stream->i_duration  += p_data->i_length;
 453             p_stream->i_totalsize += p_data->i_buffer;
 454
 455             /* add idx1 entry for this frame */
 456             p_idx = &p_sys->idx1.entry[p_sys->idx1.i_entry_count];
 457             memcpy( p_idx->fcc, p_stream->fcc, 4 );
 458             p_idx->i_flags = AVIIF_KEYFRAME;
 459             p_idx->i_pos   = p_sys->i_movi_size + 4;
 460             p_idx->i_length= p_data->i_buffer;
 461             p_sys->idx1.i_entry_count++;
 462             if( p_sys->idx1.i_entry_count >= p_sys->idx1.i_entry_max )
 463             {
 464                 p_sys->idx1.i_entry_max += 10000;
 465                 p_sys->idx1.entry = realloc( p_sys->idx1.entry,
 466                                              p_sys->idx1.i_entry_max * sizeof( avi_idx1_entry_t ) );
 467             }
 468
 469             p_data = block_Realloc( p_data, 8, p_data->i_buffer );
 470             if( p_data )
 471             {
 472                 SetFCC( p_data->p_buffer, p_stream->fcc );
 473                 SetDWLE( p_data->p_buffer + 4, p_data->i_buffer - 8 );
 474
 475                 if( p_data->i_buffer & 0x01 )
 476                 {
 477                     p_data = block_Realloc( p_data, 0, p_data->i_buffer + 1 );
 478                     p_data->p_buffer[ p_data->i_buffer - 1 ] = '\0';
 479                 }
 480
 481                 p_sys->i_movi_size += p_data->i_buffer;
 482                 sout_AccessOutWrite( p_mux->p_access, p_data );
 483             }
 484
 485             i_count--;
 486         }
 487
 488     }
 489     return( 0 );
 490 }
 491
 492 /****************************************************************************/
 493 /****************************************************************************/
 494 /****************************************************************************/
 495 /****************************************************************************/
 496
 497 typedef struct buffer_out_s
 498 {
 499     int      i_buffer_size;
 500     int      i_buffer;
 501     uint8_t  *p_buffer;
 502
 503 } buffer_out_t;
 504
 505 static void bo_Init( buffer_out_t *p_bo, int i_size, uint8_t *p_buffer )
 506 {
 507     p_bo->i_buffer_size = i_size;
 508     p_bo->i_buffer = 0;
 509     p_bo->p_buffer = p_buffer;
 510 }
 511 static void bo_AddByte( buffer_out_t *p_bo, uint8_t i )
 512 {
 513     if( p_bo->i_buffer < p_bo->i_buffer_size )
 514     {
 515         p_bo->p_buffer[p_bo->i_buffer] = i;
 516     }
 517     p_bo->i_buffer++;
 518 }
 519 static void bo_AddWordLE( buffer_out_t *p_bo, uint16_t i )
 520 {
 521     bo_AddByte( p_bo, i &0xff );
 522     bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
 523 }
 524 static void bo_AddWordBE( buffer_out_t *p_bo, uint16_t i )
 525 {
 526     bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
 527     bo_AddByte( p_bo, i &0xff );
 528 }
 529 static void bo_AddDWordLE( buffer_out_t *p_bo, uint32_t i )
 530 {
 531     bo_AddWordLE( p_bo, i &0xffff );
 532     bo_AddWordLE( p_bo, ( ( i >> 16) &0xffff ) );
 533 }
 534 static void bo_AddDWordBE( buffer_out_t *p_bo, uint32_t i )
 535 {
 536     bo_AddWordBE( p_bo, ( ( i >> 16) &0xffff ) );
 537     bo_AddWordBE( p_bo, i &0xffff );
 538 }
 539 #if 0
 540 static void bo_AddLWordLE( buffer_out_t *p_bo, uint64_t i )
 541 {
 542     bo_AddDWordLE( p_bo, i &0xffffffff );
 543     bo_AddDWordLE( p_bo, ( ( i >> 32) &0xffffffff ) );
 544 }
 545 static void bo_AddLWordBE( buffer_out_t *p_bo, uint64_t i )
 546 {
 547     bo_AddDWordBE( p_bo, ( ( i >> 32) &0xffffffff ) );
 548     bo_AddDWordBE( p_bo, i &0xffffffff );
 549 }
 550 #endif
 551
 552 static void bo_AddFCC( buffer_out_t *p_bo, const char *fcc )
 553 {
 554     bo_AddByte( p_bo, fcc[0] );
 555     bo_AddByte( p_bo, fcc[1] );
 556     bo_AddByte( p_bo, fcc[2] );
 557     bo_AddByte( p_bo, fcc[3] );
 558 }
 559
 560 static void bo_AddMem( buffer_out_t *p_bo, int i_size, uint8_t *p_mem )
 561 {
 562     int i;
 563
 564     for( i = 0; i < i_size; i++ )
 565     {
 566         bo_AddByte( p_bo, p_mem[i] );
 567     }
 568 }
 569
 570 /****************************************************************************
 571  ****************************************************************************
 572  **
 573  ** avi header generation
 574  **
 575  ****************************************************************************
 576  ****************************************************************************/
 577 #define AVI_BOX_ENTER( fcc ) \
 578     buffer_out_t _bo_sav_; \
 579     bo_AddFCC( p_bo, fcc ); \
 580     _bo_sav_ = *p_bo; \
 581     bo_AddDWordLE( p_bo, 0 )
 582
 583 #define AVI_BOX_ENTER_LIST( fcc ) \
 584     AVI_BOX_ENTER( "LIST" ); \
 585     bo_AddFCC( p_bo, fcc )
 586
 587 #define AVI_BOX_EXIT( i_err ) \
 588     if( p_bo->i_buffer&0x01 ) bo_AddByte( p_bo, 0 ); \
 589     bo_AddDWordLE( &_bo_sav_, p_bo->i_buffer - _bo_sav_.i_buffer - 4 ); \
 590     return( i_err );
 591
 592 static int avi_HeaderAdd_avih( sout_mux_t *p_mux,
 593                                buffer_out_t *p_bo )
 594 {
 595     sout_mux_sys_t  *p_sys = p_mux->p_sys;
 596     avi_stream_t    *p_video = NULL;
 597     int         i_stream;
 598     uint32_t    i_microsecperframe;
 599     int         i_maxbytespersec;
 600     int         i_totalframes;
 601     AVI_BOX_ENTER( "avih" );
 602
 603     if( p_sys->i_stream_video >= 0 )
 604     {
 605         p_video = &p_sys->stream[p_sys->i_stream_video];
 606         if( p_video->i_frames <= 0 )
 607         {
 608         //    p_video = NULL;
 609         }
 610     }
 611
 612     if( p_video )
 613     {
 614         i_microsecperframe =
 615             (uint32_t)( (float)1000000 /
 616                         (float)p_sys->stream[p_sys->i_stream_video].f_fps );
 617         i_totalframes = p_sys->stream[p_sys->i_stream_video].i_frames;
 618     }
 619     else
 620     {
 621         msg_Warn( p_mux, "avi file without video track isn't a good idea..." );
 622         i_microsecperframe = 0;
 623         i_totalframes = 0;
 624     }
 625
 626     for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
 627     {
 628         if( p_sys->stream[i_stream].i_duration > 0 )
 629         {
 630             i_maxbytespersec +=
 631                 p_sys->stream[i_stream].i_totalsize /
 632                 p_sys->stream[i_stream].i_duration;
 633         }
 634     }
 635
 636     bo_AddDWordLE( p_bo, i_microsecperframe );
 637     bo_AddDWordLE( p_bo, i_maxbytespersec );
 638     bo_AddDWordLE( p_bo, 0 );                   /* padding */
 639     bo_AddDWordLE( p_bo, AVIF_TRUSTCKTYPE |
 640                          AVIF_HASINDEX |
 641                          AVIF_ISINTERLEAVED );  /* flags */
 642     bo_AddDWordLE( p_bo, i_totalframes );
 643     bo_AddDWordLE( p_bo, 0 );                   /* initial frame */
 644     bo_AddDWordLE( p_bo, p_sys->i_streams );    /* streams count */
 645     bo_AddDWordLE( p_bo, 1024 * 1024 );         /* suggested buffer size */
 646     if( p_video )
 647     {
 648         bo_AddDWordLE( p_bo, p_video->p_bih->biWidth );
 649         bo_AddDWordLE( p_bo, p_video->p_bih->biHeight );
 650     }
 651     else
 652     {
 653         bo_AddDWordLE( p_bo, 0 );
 654         bo_AddDWordLE( p_bo, 0 );
 655     }
 656     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 657     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 658     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 659     bo_AddDWordLE( p_bo, 0 );                   /* ???? */
 660
 661     AVI_BOX_EXIT( 0 );
 662 }
 663 static int avi_HeaderAdd_strh( buffer_out_t *p_bo, avi_stream_t *p_stream )
 664 {
 665     AVI_BOX_ENTER( "strh" );
 666
 667     switch( p_stream->i_cat )
 668     {
 669         case VIDEO_ES:
 670             {
 671                 bo_AddFCC( p_bo, "vids" );
 672                 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
 673                 bo_AddDWordLE( p_bo, 0 );   /* flags */
 674                 bo_AddWordLE(  p_bo, 0 );   /* priority */
 675                 bo_AddWordLE(  p_bo, 0 );   /* langage */
 676                 bo_AddDWordLE( p_bo, 0 );   /* initial frame */
 677                 bo_AddDWordLE( p_bo, 1000 );/* scale */
 678                 bo_AddDWordLE( p_bo, (uint32_t)( 1000 * p_stream->f_fps ));
 679                 bo_AddDWordLE( p_bo, 0 );   /* start */
 680                 bo_AddDWordLE( p_bo, p_stream->i_frames );
 681                 bo_AddDWordLE( p_bo, 1024 * 1024 );
 682                 bo_AddDWordLE( p_bo, -1 );  /* quality */
 683                 bo_AddDWordLE( p_bo, 0 );   /* samplesize */
 684                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 685                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 686                 bo_AddWordLE(  p_bo, p_stream->p_bih->biWidth );
 687                 bo_AddWordLE(  p_bo, p_stream->p_bih->biHeight );
 688             }
 689             break;
 690         case AUDIO_ES:
 691             {
 692                 int i_rate, i_scale, i_samplesize;
 693
 694                 i_samplesize = p_stream->p_wf->nBlockAlign;
 695                 if( i_samplesize > 1 )
 696                 {
 697                     i_scale = i_samplesize;
 698                     i_rate = /*i_scale **/ p_stream->i_bitrate / 8;
 699                 }
 700                 else
 701                 {
 702                     i_samplesize = 1;
 703                     i_scale = 1000;
 704                     i_rate = 1000 * p_stream->i_bitrate / 8;
 705                 }
 706                 bo_AddFCC( p_bo, "auds" );
 707                 bo_AddDWordLE( p_bo, 0 );   /* tag */
 708                 bo_AddDWordLE( p_bo, 0 );   /* flags */
 709                 bo_AddWordLE(  p_bo, 0 );   /* priority */
 710                 bo_AddWordLE(  p_bo, 0 );   /* langage */
 711                 bo_AddDWordLE( p_bo, 0 );   /* initial frame */
 712                 bo_AddDWordLE( p_bo, i_scale );/* scale */
 713                 bo_AddDWordLE( p_bo, i_rate );
 714                 bo_AddDWordLE( p_bo, 0 );   /* start */
 715                 bo_AddDWordLE( p_bo, p_stream->i_frames );
 716                 bo_AddDWordLE( p_bo, 10 * 1024 );
 717                 bo_AddDWordLE( p_bo, -1 );  /* quality */
 718                 bo_AddDWordLE( p_bo, i_samplesize );
 719                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 720                 bo_AddWordLE(  p_bo, 0 );   /* ??? */
 721                 bo_AddWordLE(  p_bo, 0 );
 722                 bo_AddWordLE(  p_bo, 0 );
 723             }
 724             break;
 725     }
 726
 727     AVI_BOX_EXIT( 0 );
 728 }
 729
 730 static int avi_HeaderAdd_strf( buffer_out_t *p_bo, avi_stream_t *p_stream )
 731 {
 732     AVI_BOX_ENTER( "strf" );
 733
 734     switch( p_stream->i_cat )
 735     {
 736         case AUDIO_ES:
 737             bo_AddWordLE( p_bo, p_stream->p_wf->wFormatTag );
 738             bo_AddWordLE( p_bo, p_stream->p_wf->nChannels );
 739             bo_AddDWordLE( p_bo, p_stream->p_wf->nSamplesPerSec );
 740             bo_AddDWordLE( p_bo, p_stream->p_wf->nAvgBytesPerSec );
 741             bo_AddWordLE( p_bo, p_stream->p_wf->nBlockAlign );
 742             bo_AddWordLE( p_bo, p_stream->p_wf->wBitsPerSample );
 743             bo_AddWordLE( p_bo, p_stream->p_wf->cbSize );
 744             bo_AddMem( p_bo, p_stream->p_wf->cbSize, (uint8_t*)&p_stream->p_wf[1] );
 745             break;
 746         case VIDEO_ES:
 747             bo_AddDWordLE( p_bo, p_stream->p_bih->biSize );
 748             bo_AddDWordLE( p_bo, p_stream->p_bih->biWidth );
 749             bo_AddDWordLE( p_bo, p_stream->p_bih->biHeight );
 750             bo_AddWordLE( p_bo, p_stream->p_bih->biPlanes );
 751             bo_AddWordLE( p_bo, p_stream->p_bih->biBitCount );
 752             if( VLC_FOURCC( 0, 0, 0, 1 ) == 0x00000001 )
 753             {
 754                 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
 755             }
 756             else
 757             {
 758                 bo_AddDWordLE( p_bo, p_stream->p_bih->biCompression );
 759             }
 760             bo_AddDWordLE( p_bo, p_stream->p_bih->biSizeImage );
 761             bo_AddDWordLE( p_bo, p_stream->p_bih->biXPelsPerMeter );
 762             bo_AddDWordLE( p_bo, p_stream->p_bih->biYPelsPerMeter );
 763             bo_AddDWordLE( p_bo, p_stream->p_bih->biClrUsed );
 764             bo_AddDWordLE( p_bo, p_stream->p_bih->biClrImportant );
 765             bo_AddMem( p_bo,
 766                        p_stream->p_bih->biSize - sizeof( BITMAPINFOHEADER ),
 767                        (uint8_t*)&p_stream->p_bih[1] );
 768             break;
 769     }
 770
 771     AVI_BOX_EXIT( 0 );
 772 }
 773
 774 static int avi_HeaderAdd_strl( buffer_out_t *p_bo, avi_stream_t *p_stream )
 775 {
 776     AVI_BOX_ENTER_LIST( "strl" );
 777
 778     avi_HeaderAdd_strh( p_bo, p_stream );
 779     avi_HeaderAdd_strf( p_bo, p_stream );
 780
 781     AVI_BOX_EXIT( 0 );
 782 }
 783
 784 static block_t *avi_HeaderCreateRIFF( sout_mux_t *p_mux )
 785 {
 786     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 787     block_t       *p_hdr;
 788     int                 i_stream;
 789     int                 i_maxbytespersec;
 790     int                 i_junk;
 791     buffer_out_t        bo;
 792
 793     p_hdr = block_New( p_mux, HDR_SIZE );
 794     memset( p_hdr->p_buffer, 0, HDR_SIZE );
 795
 796     bo_Init( &bo, HDR_SIZE, p_hdr->p_buffer );
 797
 798     bo_AddFCC( &bo, "RIFF" );
 799     bo_AddDWordLE( &bo, p_sys->i_movi_size + HDR_SIZE - 8 + p_sys->i_idx1_size );
 800     bo_AddFCC( &bo, "AVI " );
 801
 802     bo_AddFCC( &bo, "LIST" );
 803     bo_AddDWordLE( &bo, HDR_SIZE - 8);
 804     bo_AddFCC( &bo, "hdrl" );
 805
 806     avi_HeaderAdd_avih( p_mux, &bo );
 807     for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
 808     {
 809         avi_HeaderAdd_strl( &bo, &p_sys->stream[i_stream] );
 810     }
 811
 812     i_junk = HDR_SIZE - bo.i_buffer - 8 - 12;
 813     bo_AddFCC( &bo, "JUNK" );
 814     bo_AddDWordLE( &bo, i_junk );
 815
 816     bo.i_buffer += i_junk;
 817     bo_AddFCC( &bo, "LIST" );
 818     bo_AddDWordLE( &bo, p_sys->i_movi_size + 4 );
 819     bo_AddFCC( &bo, "movi" );
 820
 821     return( p_hdr );
 822 }
 823
 824 static block_t * avi_HeaderCreateidx1( sout_mux_t *p_mux )
 825 {
 826     sout_mux_sys_t      *p_sys = p_mux->p_sys;
 827     block_t       *p_idx1;
 828     uint32_t            i_idx1_size;
 829     unsigned int        i;
 830     buffer_out_t        bo;
 831
 832     i_idx1_size = 16 * p_sys->idx1.i_entry_count;
 833
 834     p_idx1 = block_New( p_mux, i_idx1_size + 8 );
 835     memset( p_idx1->p_buffer, 0, i_idx1_size );
 836
 837     bo_Init( &bo, i_idx1_size, p_idx1->p_buffer );
 838     bo_AddFCC( &bo, "idx1" );
 839     bo_AddDWordLE( &bo, i_idx1_size );
 840
 841     for( i = 0; i < p_sys->idx1.i_entry_count; i++ )
 842     {
 843         bo_AddFCC( &bo, p_sys->idx1.entry[i].fcc );
 844         bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_flags );
 845         bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_pos );
 846         bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_length );
 847     }
 848
 849     return( p_idx1 );
 850 }
 851