libmpdemux/demux_viv.c

   1 /*
   2  * VIVO file parser
   3  * copyright (c) 2001 A'rpi
   4  * VIVO text header parser and audio support by alex
   5  *
   6  * This file is part of MPlayer.
   7  *
   8  * MPlayer is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * MPlayer is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with MPlayer; if not, write to the Free Software Foundation, Inc.,
  20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  21  */
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <unistd.h>
  26 #include <string.h> /* strtok */
  27
  28 #include "config.h"
  29 #include "mp_msg.h"
  30
  31 #include "stream/stream.h"
  32 #include "demuxer.h"
  33 #include "stheader.h"
  34
  35 /* parameters ! */
  36 int vivo_param_version = -1;
  37 char *vivo_param_acodec = NULL;
  38 int vivo_param_abitrate = -1;
  39 int vivo_param_samplerate = -1;
  40 int vivo_param_bytesperblock = -1;
  41 int vivo_param_width = -1;
  42 int vivo_param_height = -1;
  43 int vivo_param_vformat = -1;
  44
  45 /* VIVO audio standards from vivog723.acm:
  46
  47     G.723:
  48         FormatTag = 0x111
  49         Channels = 1 - mono
  50         SamplesPerSec = 8000 - 8khz
  51         AvgBytesPerSec = 800
  52         BlockAlign (bytes per block) = 24
  53         BitsPerSample = 8
  54
  55     Siren:
  56         FormatTag = 0x112
  57         Channels = 1 - mono
  58         SamplesPerSec = 16000 - 16khz
  59         AvgBytesPerSec = 2000
  60         BlockAlign (bytes per block) = 40
  61         BitsPerSample = 8
  62 */
  63
  64 //enum { VIVO_AUDIO_G723, VIVO_AUDIO_SIREN };
  65
  66 #define VIVO_AUDIO_G723 1
  67 #define VIVO_AUDIO_SIREN 2
  68
  69 typedef struct {
  70     /* generic */
  71     char        version;
  72     int         supported;
  73     /* info */
  74     char        *title;
  75     char        *author;
  76     char        *copyright;
  77     char        *producer;
  78     /* video */
  79     float       fps;
  80     int         width;
  81     int         height;
  82     int         disp_width;
  83     int         disp_height;
  84     /* audio */
  85     int         audio_codec;
  86     int         audio_bitrate;
  87     int         audio_samplerate;
  88     int         audio_bytesperblock;
  89 } vivo_priv_t;
  90
  91 /* parse all possible extra headers */
  92 /* (audio headers are separate - mostly with recordtype=3 or 4) */
  93 #define TEXTPARSE_ALL 1
  94
  95 static void vivo_parse_text_header(demuxer_t *demux, int header_len)
  96 {
  97     vivo_priv_t* priv = demux->priv;
  98     char *buf;
  99     char *token;
 100     char *opt, *param;
 101     int parser_in_audio_block = 0;
 102
 103     if (!demux->priv)
 104     {
 105         priv = malloc(sizeof(vivo_priv_t));
 106         memset(priv, 0, sizeof(vivo_priv_t));
 107         demux->priv = priv;
 108         priv->supported = 0;
 109     }
 110
 111     buf = malloc(header_len + 1);
 112     opt = malloc(header_len + 1);
 113     param = malloc(header_len + 1);
 114     stream_read(demux->stream, buf, header_len);
 115     buf[header_len] = 0;
 116
 117     token = strtok(buf, (char *)&("\x0d\x0a"));
 118     while (token)
 119     {
 120         if (sscanf(token, "%[^:]:%[^\n]", opt, param) != 2)
 121         {
 122             mp_msg(MSGT_DEMUX, MSGL_V, "viv_text_header_parser: bad line: '%s' at ~%#"PRIx64"\n",
 123                 token, (int64_t)stream_tell(demux->stream));
 124             break;
 125         }
 126         mp_dbg(MSGT_DEMUX, MSGL_DBG3, "token: '%s' (%zd bytes)\n",
 127             token, strlen(token));
 128         mp_dbg(MSGT_DEMUX, MSGL_DBG3, "token => o: '%s', p: '%s'\n",
 129             opt, param);
 130
 131         /* checking versions: only v1 or v2 is suitable (or known?:) */
 132         if (!strcmp(opt, "Version"))
 133         {
 134             mp_msg(MSGT_DEMUX, MSGL_DBG2, "Version: %s\n", param);
 135             if (!strncmp(param, "Vivo/1", 6) || !strncmp(param, "Vivo/2", 6))
 136             {
 137                 priv->supported = 1;
 138                 /* save major version for fourcc */
 139                 priv->version = param[5];
 140             }
 141         }
 142
 143         /* video specific */
 144         if (!strcmp(opt, "FPS"))
 145         {
 146             mp_msg(MSGT_DEMUX, MSGL_DBG2, "FPS: %f\n", atof(param));
 147             priv->fps = atof(param);
 148         }
 149         if (!strcmp(opt, "Width"))
 150         {
 151             mp_msg(MSGT_DEMUX, MSGL_DBG2, "Width: %d\n", atoi(param));
 152             priv->width = atoi(param);
 153         }
 154         if (!strcmp(opt, "Height"))
 155         {
 156             mp_msg(MSGT_DEMUX, MSGL_DBG2, "Height: %d\n", atoi(param));
 157             priv->height = atoi(param);
 158         }
 159         if (!strcmp(opt, "DisplayWidth"))
 160         {
 161             mp_msg(MSGT_DEMUX, MSGL_DBG2, "Display Width: %d\n", atoi(param));
 162             priv->disp_width = atoi(param);
 163         }
 164         if (!strcmp(opt, "DisplayHeight"))
 165         {
 166             mp_msg(MSGT_DEMUX, MSGL_DBG2, "Display Height: %d\n", atoi(param));
 167             priv->disp_height = atoi(param);
 168         }
 169
 170         /* audio specific */
 171         if (!strcmp(opt, "RecordType"))
 172         {
 173             /* no audio recordblock by Vivo/1.00, 3 and 4 by Vivo/2.00 */
 174             if ((atoi(param) == 3) || (atoi(param) == 4))
 175                 parser_in_audio_block = 1;
 176             else
 177                 parser_in_audio_block = 0;
 178         }
 179         if (!strcmp(opt, "NominalBitrate"))
 180         {
 181             priv->audio_bitrate = atoi(param);
 182             if (priv->audio_bitrate == 2000)
 183                 priv->audio_codec = VIVO_AUDIO_SIREN;
 184             if (priv->audio_bitrate == 800)
 185                 priv->audio_codec = VIVO_AUDIO_G723;
 186         }
 187         if (!strcmp(opt, "SamplingFrequency"))
 188         {
 189             priv->audio_samplerate = atoi(param);
 190             if (priv->audio_samplerate == 16000)
 191                 priv->audio_codec = VIVO_AUDIO_SIREN;
 192             if (priv->audio_samplerate == 8000)
 193                 priv->audio_codec = VIVO_AUDIO_G723;
 194         }
 195         if (!strcmp(opt, "Length") && (parser_in_audio_block == 1))
 196         {
 197             priv->audio_bytesperblock = atoi(param); /* 24 or 40 kbps */
 198             if (priv->audio_bytesperblock == 40)
 199                 priv->audio_codec = VIVO_AUDIO_SIREN;
 200             if (priv->audio_bytesperblock == 24)
 201                 priv->audio_codec = VIVO_AUDIO_G723;
 202         }
 203
 204         /* only for displaying some informations about movie*/
 205         if (!strcmp(opt, "Title"))
 206         {
 207             demux_info_add(demux, "title", param);
 208             priv->title = strdup(param);
 209         }
 210         if (!strcmp(opt, "Author"))
 211         {
 212             demux_info_add(demux, "author", param);
 213             priv->author = strdup(param);
 214         }
 215         if (!strcmp(opt, "Copyright"))
 216         {
 217             demux_info_add(demux, "copyright", param);
 218             priv->copyright = strdup(param);
 219         }
 220         if (!strcmp(opt, "Producer"))
 221         {
 222             demux_info_add(demux, "encoder", param);
 223             priv->producer = strdup(param);
 224         }
 225
 226         /* get next token */
 227         token = strtok(NULL, (char *)&("\x0d\x0a"));
 228     }
 229
 230     free(buf);
 231     free(opt);
 232     free(param);
 233 }
 234
 235 static int vivo_check_file(demuxer_t* demuxer){
 236     int i=0;
 237     int len;
 238     int c;
 239     unsigned char buf[2048+256];
 240     vivo_priv_t* priv;
 241     int orig_pos = stream_tell(demuxer->stream);
 242
 243     mp_msg(MSGT_DEMUX,MSGL_V,"Checking for VIVO\n");
 244
 245     c=stream_read_char(demuxer->stream);
 246     if(c==-256) return 0;
 247     len=0;
 248     while((c=stream_read_char(demuxer->stream))>=0x80){
 249         len+=0x80*(c-0x80);
 250         if(len>1024) return 0;
 251     }
 252     len+=c;
 253     mp_msg(MSGT_DEMUX,MSGL_V,"header block 1 size: %d\n",len);
 254     //stream_skip(demuxer->stream,len);
 255
 256     priv=malloc(sizeof(vivo_priv_t));
 257     memset(priv,0,sizeof(vivo_priv_t));
 258     demuxer->priv=priv;
 259
 260 #if 0
 261     vivo_parse_text_header(demuxer, len);
 262     if (priv->supported == 0)
 263         return 0;
 264 #else
 265     /* this is enought for check (for now) */
 266     stream_read(demuxer->stream,buf,len);
 267     buf[len]=0;
 268 //    printf("VIVO header: '%s'\n",buf);
 269
 270     // parse header:
 271     i=0;
 272     while(i<len && buf[i]==0x0D && buf[i+1]==0x0A) i+=2; // skip empty lines
 273     if(strncmp(buf+i,"Version:Vivo/",13)) return 0; // bad version/type!
 274 #endif
 275
 276 #if 0
 277     c=stream_read_char(demuxer->stream);
 278     if(c) return 0;
 279     len2=0;
 280     while((c=stream_read_char(demuxer->stream))>=0x80){
 281         len2+=0x80*(c-0x80);
 282         if(len+len2>2048) return 0;
 283     }
 284     len2+=c;
 285     mp_msg(MSGT_DEMUX,MSGL_V,"header block 2 size: %d\n",len2);
 286     stream_skip(demuxer->stream,len2);
 287 //    stream_read(demuxer->stream,buf+len,len2);
 288 #endif
 289
 290 //    c=stream_read_char(demuxer->stream);
 291 //    printf("first packet: %02X\n",c);
 292
 293     stream_seek(demuxer->stream, orig_pos);
 294
 295 return DEMUXER_TYPE_VIVO;
 296 }
 297
 298 static int audio_pos=0;
 299 static int audio_rate=0;
 300
 301 // return value:
 302 //     0 = EOF or no stream found
 303 //     1 = successfully read a packet
 304 static int demux_vivo_fill_buffer(demuxer_t *demux, demux_stream_t *dsds){
 305   demux_stream_t *ds=NULL;
 306   int c;
 307   int len=0;
 308   int seq;
 309   int prefix=0;
 310   demux->filepos=stream_tell(demux->stream);
 311
 312   c=stream_read_char(demux->stream);
 313   if (c == -256) /* EOF */
 314     return 0;
 315 //  printf("c=%x,%02X\n",c,c&0xf0);
 316   if (c == 0x82)
 317   {
 318       /* ok, this works, but pts calculating from header is required! */
 319       /* FIXME: "Calculate PTS from picture header!" */
 320       prefix = 1;
 321       c = stream_read_char(demux->stream);
 322       mp_msg(MSGT_DEMUX, MSGL_V, "packet 0x82(pos=%u) chunk=%x\n",
 323         (int)stream_tell(demux->stream), c);
 324   }
 325   switch(c&0xF0){
 326   case 0x00: // header - skip it!
 327   {
 328       len=stream_read_char(demux->stream);
 329       if(len>=0x80) len=0x80*(len-0x80)+stream_read_char(demux->stream);
 330       mp_msg(MSGT_DEMUX, MSGL_V, "vivo extra header: %d bytes\n",len);
 331 #ifdef TEXTPARSE_ALL
 332 {
 333       int pos;
 334       /* also try to parse all headers */
 335       pos = stream_tell(demux->stream);
 336       vivo_parse_text_header(demux, len);
 337       stream_seek(demux->stream, pos);
 338 }
 339 #endif
 340       break;
 341   }
 342   case 0x10:  // video packet
 343       if (prefix == 1)
 344         len = stream_read_char(demux->stream);
 345       else
 346         len=128;
 347       ds=demux->video;
 348       break;
 349   case 0x20:  // video packet
 350       len=stream_read_char(demux->stream);
 351       ds=demux->video;
 352       break;
 353   case 0x30:  // audio packet
 354       if (prefix == 1)
 355         len = stream_read_char(demux->stream);
 356       else
 357         len=40; /* 40kbps */
 358       ds=demux->audio;
 359       audio_pos+=len;
 360       break;
 361   case 0x40:  // audio packet
 362       if (prefix == 1)
 363         len = stream_read_char(demux->stream);
 364       else
 365         len=24; /* 24kbps */
 366       ds=demux->audio;
 367       audio_pos+=len;
 368       break;
 369   default:
 370       mp_msg(MSGT_DEMUX,MSGL_WARN,"VIVO - unknown ID found: %02X at pos %"PRIu64" contact author!\n",
 371         c, (int64_t)stream_tell(demux->stream));
 372       return 0;
 373   }
 374
 375 //  printf("chunk=%x, len=%d\n", c, len);
 376
 377   if(!ds || ds->id<-1){
 378       if(len) stream_skip(demux->stream,len);
 379       return 1;
 380   }
 381
 382   seq=c&0x0F;
 383
 384     if(ds->asf_packet){
 385       if(ds->asf_seq!=seq){
 386         // closed segment, finalize packet:
 387         ds_add_packet(ds,ds->asf_packet);
 388         ds->asf_packet=NULL;
 389 //      printf("packet!\n");
 390       } else {
 391         // append data to it!
 392         demux_packet_t* dp=ds->asf_packet;
 393         if(dp->len + len + MP_INPUT_BUFFER_PADDING_SIZE < 0)
 394             return 0;
 395         dp->buffer=realloc(dp->buffer,dp->len+len+MP_INPUT_BUFFER_PADDING_SIZE);
 396         memset(dp->buffer+dp->len+len, 0, MP_INPUT_BUFFER_PADDING_SIZE);
 397         //memcpy(dp->buffer+dp->len,data,len);
 398         stream_read(demux->stream,dp->buffer+dp->len,len);
 399         mp_dbg(MSGT_DEMUX,MSGL_DBG4,"data appended! %d+%d\n",dp->len,len);
 400         dp->len+=len;
 401         // we are ready now.
 402         if((c&0xF0)==0x20) --ds->asf_seq; // hack!
 403         return 1;
 404       }
 405     }
 406     // create new packet:
 407     { demux_packet_t* dp;
 408       dp=new_demux_packet(len);
 409       //memcpy(dp->buffer,data,len);
 410       stream_read(demux->stream,dp->buffer,len);
 411       dp->pts=audio_rate?((float)audio_pos/(float)audio_rate):0;
 412 //      dp->flags=keyframe;
 413 //      if(ds==demux->video) printf("ASF time: %8d  dur: %5d  \n",time,dur);
 414       dp->pos=demux->filepos;
 415       ds->asf_packet=dp;
 416       ds->asf_seq=seq;
 417       // we are ready now.
 418       return 1;
 419     }
 420
 421 }
 422
 423 static const short h263_format[8][2] = {
 424     { 0, 0 },
 425     { 128, 96 },
 426     { 176, 144 },
 427     { 352, 288 },
 428     { 704, 576 },
 429     { 1408, 1152 },
 430     { 320, 240 }   // ??????? or 240x180 (found in vivo2) ?
 431 };
 432
 433 static unsigned char* buffer;
 434 static int bufptr=0;
 435 static int bitcnt=0;
 436 static unsigned char buf=0;
 437 static int format, width, height;
 438
 439 static unsigned int x_get_bits(int n){
 440     unsigned int x=0;
 441     while(n-->0){
 442         if(!bitcnt){
 443             // fill buff
 444             buf=buffer[bufptr++];
 445             bitcnt=8;
 446         }
 447         //x=(x<<1)|(buf&1);buf>>=1;
 448         x=(x<<1)|(buf>>7);buf<<=1;
 449         --bitcnt;
 450     }
 451     return x;
 452 }
 453
 454 #define get_bits(xxx,n) x_get_bits(n)
 455 #define get_bits1(xxx) x_get_bits(1)
 456 #define skip_bits(xxx,n) x_get_bits(n)
 457 #define skip_bits1(xxx) x_get_bits(1)
 458
 459 /* most is hardcoded. should extend to handle all h263 streams */
 460 static int h263_decode_picture_header(unsigned char *b_ptr)
 461 {
 462 //    int i;
 463
 464 //    for(i=0;i<16;i++) printf(" %02X",b_ptr[i]); printf("\n");
 465
 466     buffer=b_ptr;
 467     bufptr=bitcnt=buf=0;
 468
 469     /* picture header */
 470     if (get_bits(&s->gb, 22) != 0x20){
 471         mp_msg(MSGT_DEMUX, MSGL_FATAL, "bad picture header\n");
 472         return -1;
 473     }
 474     skip_bits(&s->gb, 8); /* picture timestamp */
 475
 476     if (get_bits1(&s->gb) != 1){
 477         mp_msg(MSGT_DEMUX, MSGL_FATAL, "bad marker\n");
 478         return -1;      /* marker */
 479     }
 480     if (get_bits1(&s->gb) != 0){
 481         mp_msg(MSGT_DEMUX, MSGL_FATAL, "bad h263 id\n");
 482         return -1;      /* h263 id */
 483     }
 484     skip_bits1(&s->gb); /* split screen off */
 485     skip_bits1(&s->gb); /* camera  off */
 486     skip_bits1(&s->gb); /* freeze picture release off */
 487
 488     format = get_bits(&s->gb, 3);
 489
 490     if (format != 7) {
 491         mp_msg(MSGT_DEMUX, MSGL_V, "h263_plus = 0  format = %d\n", format);
 492         /* H.263v1 */
 493         width = h263_format[format][0];
 494         height = h263_format[format][1];
 495         mp_msg(MSGT_DEMUX, MSGL_V, "%d x %d\n", width, height);
 496 //        if (!width) return -1;
 497
 498         mp_msg(MSGT_DEMUX, MSGL_V, "pict_type=%d\n", get_bits1(&s->gb));
 499         mp_msg(MSGT_DEMUX, MSGL_V, "unrestricted_mv=%d\n", get_bits1(&s->gb));
 500 #if 1
 501         mp_msg(MSGT_DEMUX, MSGL_V, "SAC: %d\n", get_bits1(&s->gb));
 502         mp_msg(MSGT_DEMUX, MSGL_V, "advanced prediction mode: %d\n", get_bits1(&s->gb));
 503         mp_msg(MSGT_DEMUX, MSGL_V, "PB frame: %d\n", get_bits1(&s->gb));
 504 #else
 505         if (get_bits1(&s->gb) != 0)
 506             return -1;  /* SAC: off */
 507         if (get_bits1(&s->gb) != 0)
 508             return -1;  /* advanced prediction mode: off */
 509         if (get_bits1(&s->gb) != 0)
 510             return -1;  /* not PB frame */
 511 #endif
 512         mp_msg(MSGT_DEMUX, MSGL_V, "qscale=%d\n", get_bits(&s->gb, 5));
 513         skip_bits1(&s->gb);     /* Continuous Presence Multipoint mode: off */
 514     } else {
 515         mp_msg(MSGT_DEMUX, MSGL_V, "h263_plus = 1\n");
 516         /* H.263v2 */
 517         if (get_bits(&s->gb, 3) != 1){
 518             mp_msg(MSGT_DEMUX, MSGL_FATAL, "H.263v2 A error\n");
 519             return -1;
 520         }
 521         if (get_bits(&s->gb, 3) != 6){ /* custom source format */
 522             mp_msg(MSGT_DEMUX, MSGL_FATAL, "custom source format\n");
 523             return -1;
 524         }
 525         skip_bits(&s->gb, 12);
 526         skip_bits(&s->gb, 3);
 527         mp_msg(MSGT_DEMUX, MSGL_V, "pict_type=%d\n", get_bits(&s->gb, 3) + 1);
 528 //        if (s->pict_type != I_TYPE &&
 529 //            s->pict_type != P_TYPE)
 530 //            return -1;
 531         skip_bits(&s->gb, 7);
 532         skip_bits(&s->gb, 4); /* aspect ratio */
 533         width = (get_bits(&s->gb, 9) + 1) * 4;
 534         skip_bits1(&s->gb);
 535         height = get_bits(&s->gb, 9) * 4;
 536         mp_msg(MSGT_DEMUX, MSGL_V, "%d x %d\n", width, height);
 537         //if (height == 0)
 538         //    return -1;
 539         mp_msg(MSGT_DEMUX, MSGL_V, "qscale=%d\n", get_bits(&s->gb, 5));
 540     }
 541
 542     /* PEI */
 543     while (get_bits1(&s->gb) != 0) {
 544         skip_bits(&s->gb, 8);
 545     }
 546 //    s->f_code = 1;
 547 //    s->width = width;
 548 //    s->height = height;
 549     return 0;
 550 }
 551
 552
 553
 554 static demuxer_t* demux_open_vivo(demuxer_t* demuxer){
 555     vivo_priv_t* priv=demuxer->priv;
 556
 557   if(!ds_fill_buffer(demuxer->video)){
 558       mp_msg(MSGT_DEMUX, MSGL_ERR, "VIVO: %s",
 559              mp_gtext("Missing video stream!? Contact the author, it may be a bug :(\n"));
 560     return NULL;
 561   }
 562
 563     audio_pos=0;
 564
 565   h263_decode_picture_header(demuxer->video->buffer);
 566
 567   if (vivo_param_version != -1)
 568     priv->version = '0' + vivo_param_version;
 569
 570 {               sh_video_t* sh=new_sh_video(demuxer,0);
 571
 572                 /* viv1, viv2 (for better codecs.conf) */
 573                 sh->format = mmioFOURCC('v', 'i', 'v', priv->version);
 574                 if(!sh->fps)
 575                 {
 576                     if (priv->fps)
 577                         sh->fps=priv->fps;
 578                     else
 579                         sh->fps=15.0f;
 580                 }
 581                 sh->frametime=1.0f/sh->fps;
 582
 583                 /* XXX: FIXME: can't scale image. */
 584                 /* hotfix to disable: */
 585                 priv->disp_width = priv->width;
 586                 priv->disp_height = priv->height;
 587
 588                 if (vivo_param_width != -1)
 589                     priv->disp_width = priv->width = vivo_param_width;
 590
 591                 if (vivo_param_height != -1)
 592                     priv->disp_height = priv->height = vivo_param_height;
 593
 594                 if (vivo_param_vformat != -1)
 595                 {
 596                     priv->disp_width = priv->width = h263_format[vivo_param_vformat][0];
 597                     priv->disp_height = priv->height = h263_format[vivo_param_vformat][1];
 598                 }
 599
 600                 if (priv->disp_width)
 601                     sh->disp_w = priv->disp_width;
 602                 else
 603                     sh->disp_w = width;
 604                 if (priv->disp_height)
 605                     sh->disp_h = priv->disp_height;
 606                 else
 607                     sh->disp_h = height;
 608
 609                 // emulate BITMAPINFOHEADER:
 610                 sh->bih=calloc(1, sizeof(*sh->bih));
 611                 sh->bih->biSize=40;
 612                 if (priv->width)
 613                     sh->bih->biWidth = priv->width;
 614                 else
 615                     sh->bih->biWidth = width;
 616                 if (priv->height)
 617                     sh->bih->biHeight = priv->height;
 618                 else
 619                     sh->bih->biHeight = height;
 620                 sh->bih->biPlanes=1;
 621                 sh->bih->biBitCount=24;
 622                 sh->bih->biCompression=sh->format;
 623                 sh->bih->biSizeImage=sh->bih->biWidth*sh->bih->biHeight*3;
 624
 625                 /* insert as stream */
 626                 demuxer->video->sh=sh;
 627                 sh->ds=demuxer->video;
 628                 demuxer->video->id=0;
 629
 630                 /* disable seeking */
 631                 demuxer->seekable = 0;
 632
 633                 mp_msg(MSGT_DEMUX,MSGL_V,"VIVO Video stream %d size: display: %dx%d, codec: %ux%u\n",
 634                     demuxer->video->id, sh->disp_w, sh->disp_h, sh->bih->biWidth,
 635                     sh->bih->biHeight);
 636 }
 637
 638 /* AUDIO init */
 639 if (demuxer->audio->id >= -1){
 640   if(!ds_fill_buffer(demuxer->audio)){
 641       mp_msg(MSGT_DEMUX, MSGL_ERR, "VIVO: %s",
 642              mp_gtext("No audio stream found -> no sound.\n"));
 643   } else
 644 {               sh_audio_t* sh=new_sh_audio(demuxer,1);
 645
 646                 /* Select audio codec */
 647                 if (priv->audio_codec == 0)
 648                 {
 649                     if (priv->version == '2')
 650                         priv->audio_codec = VIVO_AUDIO_SIREN;
 651                     else
 652                         priv->audio_codec = VIVO_AUDIO_G723;
 653                 }
 654                 if (vivo_param_acodec != NULL)
 655                 {
 656                     if (!strcasecmp(vivo_param_acodec, "g723"))
 657                         priv->audio_codec = VIVO_AUDIO_G723;
 658                     if (!strcasecmp(vivo_param_acodec, "siren"))
 659                         priv->audio_codec = VIVO_AUDIO_SIREN;
 660                 }
 661
 662                 if (priv->audio_codec == VIVO_AUDIO_G723)
 663                     sh->format = 0x111;
 664                 else if (priv->audio_codec == VIVO_AUDIO_SIREN)
 665                     sh->format = 0x112;
 666                 else
 667                 {
 668                     mp_msg(MSGT_DEMUX, MSGL_ERR, "VIVO: Not support audio codec (%d)\n",
 669                         priv->audio_codec);
 670                     free_sh_audio(demuxer, 1);
 671                     goto nosound;
 672                 }
 673
 674                 // Emulate WAVEFORMATEX struct:
 675                 sh->wf=calloc(1, sizeof(*sh->wf));
 676                 sh->wf->wFormatTag=sh->format;
 677                 sh->wf->nChannels=1; /* 1 channels for both Siren and G.723 */
 678
 679                 /* Set bits per sample */
 680                 if (priv->audio_codec == VIVO_AUDIO_SIREN)
 681                     sh->wf->wBitsPerSample = 16;
 682                 else
 683                 if (priv->audio_codec == VIVO_AUDIO_G723)
 684                     sh->wf->wBitsPerSample = 8;
 685
 686                 /* Set sampling rate */
 687                 if (priv->audio_samplerate) /* got from header */
 688                     sh->wf->nSamplesPerSec = priv->audio_samplerate;
 689                 else
 690                 {
 691                     if (priv->audio_codec == VIVO_AUDIO_SIREN)
 692                         sh->wf->nSamplesPerSec = 16000;
 693                     if (priv->audio_codec == VIVO_AUDIO_G723)
 694                         sh->wf->nSamplesPerSec = 8000;
 695                 }
 696                 if (vivo_param_samplerate != -1)
 697                     sh->wf->nSamplesPerSec = vivo_param_samplerate;
 698
 699                 /* Set audio bitrate */
 700                 if (priv->audio_bitrate) /* got from header */
 701                     sh->wf->nAvgBytesPerSec = priv->audio_bitrate;
 702                 else
 703                 {
 704                     if (priv->audio_codec == VIVO_AUDIO_SIREN)
 705                         sh->wf->nAvgBytesPerSec = 2000;
 706                     if (priv->audio_codec == VIVO_AUDIO_G723)
 707                         sh->wf->nAvgBytesPerSec = 800;
 708                 }
 709                 if (vivo_param_abitrate != -1)
 710                     sh->wf->nAvgBytesPerSec = vivo_param_abitrate;
 711                 audio_rate=sh->wf->nAvgBytesPerSec;
 712
 713                 if (!priv->audio_bytesperblock)
 714                 {
 715                     if (priv->audio_codec == VIVO_AUDIO_SIREN)
 716                         sh->wf->nBlockAlign = 40;
 717                     if (priv->audio_codec == VIVO_AUDIO_G723)
 718                         sh->wf->nBlockAlign = 24;
 719                 }
 720                 else
 721                     sh->wf->nBlockAlign = priv->audio_bytesperblock;
 722                 if (vivo_param_bytesperblock != -1)
 723                     sh->wf->nBlockAlign = vivo_param_bytesperblock;
 724
 725 /*sound_ok:*/
 726                 /* insert as stream */
 727                 demuxer->audio->sh=sh;
 728                 sh->ds=demuxer->audio;
 729                 demuxer->audio->id=1;
 730 nosound:
 731                 return demuxer;
 732 }
 733 }
 734     return demuxer;
 735 }
 736
 737 static void demux_close_vivo(demuxer_t *demuxer)
 738 {
 739     vivo_priv_t* priv=demuxer->priv;
 740
 741     if (priv) {
 742         free(priv->title);
 743         free(priv->author);
 744         free(priv->copyright);
 745         free(priv->producer);
 746         free(priv);
 747     }
 748     return;
 749 }
 750
 751
 752 const demuxer_desc_t demuxer_desc_vivo = {
 753   "Vivo demuxer",
 754   "vivo",
 755   "VIVO",
 756   "A'rpi, Alex Beregszasi",
 757   "",
 758   DEMUXER_TYPE_VIVO,
 759   0, // unsafe autodetect
 760   vivo_check_file,
 761   demux_vivo_fill_buffer,
 762   demux_open_vivo,
 763   demux_close_vivo,
 764   NULL,
 765   NULL
 766 };