demuxer.c

自己移植的linux下的流媒体播放器原代码,支持mms协议,支持ftp和http协议.

 case DEMUXER_TYPE_H264_ES:
 case DEMUXER_TYPE_MPEG4_ES:
 case DEMUXER_TYPE_MPEG_ES: {
   sh_audio=NULL;   // ES streams has no audio channel
   d_video->sh=new_sh_video(demuxer,0); // create dummy video stream header, id=0
   sh_video=d_video->sh;sh_video->ds=d_video;
   break;
 }

// case DEMUXER_TYPE_MPEG_TY: 
 case DEMUXER_TYPE_MPEG_PS: {
  sh_video=d_video->sh;sh_video->ds=d_video;
//  if(demuxer->stream->type!=STREAMTYPE_VCD) demuxer->movi_start=0; // for VCD

  if(audio_id!=-2) {
   if(!ds_fill_buffer(d_audio)){
    mp_msg(MSGT_DEMUXER,MSGL_INFO,"MPEG: " MSGTR_MissingAudioStream);
    sh_audio=NULL;
   } else {
    sh_audio=d_audio->sh;sh_audio->ds=d_audio;
   }
  }
  break;
 }
#ifdef USE_TV
 case DEMUXER_TYPE_TV: {
    if (!demux_open_tv(demuxer)) return(NULL);
    break;
 }
#endif
#ifdef STREAMING_LIVE_DOT_COM
 case DEMUXER_TYPE_RTP: {
   if (!(demuxer = demux_open_rtp(demuxer))) return NULL;
   break;
 }
#endif
 case DEMUXER_TYPE_MPEG_TS: {
  demux_open_ts(demuxer);
  break;
 }
 case DEMUXER_TYPE_REALAUDIO: {
  if (!demux_open_ra(demuxer)) return NULL;
  break;
 }
// case DEMUXER_TYPE_VQF: {
//  if (!demux_open_vqf(demuxer)) return NULL;
//  break;
// }
#ifdef USE_LIBAVFORMAT
  case DEMUXER_TYPE_LAVF: {
  if (!demux_open_lavf(demuxer)) return NULL;
  break;
 }
#endif
#ifdef USE_WIN32DLL
  case DEMUXER_TYPE_AVS: {
  if (!demux_open_avs(demuxer)) return NULL;
  break;
 }
#endif
} // switch(file_format)
pts_from_bps=0; // !!!
if ((sh_video=demuxer->video->sh) && sh_video->bih)
  mp_msg(MSGT_DEMUX,MSGL_INFO,"VIDEO:  [%.4s]  %ldx%ld  %dbpp  %5.3f fps  %5.1f kbps (%4.1f kbyte/s)\n",
    (char *)&sh_video->bih->biCompression,
    sh_video->bih->biWidth,
    sh_video->bih->biHeight,
    sh_video->bih->biBitCount,
    sh_video->fps,
    sh_video->i_bps*0.008f,
    sh_video->i_bps/1024.0f );
return demuxer;
}

char* audio_stream = NULL;
char* sub_stream = NULL;
int demuxer_type = 0, audio_demuxer_type = 0, sub_demuxer_type = 0;
int audio_stream_cache = 0;

extern int hr_mp3_seek;

extern float stream_cache_min_percent;
extern float stream_cache_prefill_percent;

demuxer_t* demux_open(stream_t *vs,int file_format,int audio_id,int video_id,int dvdsub_id,char* filename){
  stream_t *as = NULL,*ss = NULL;
  demuxer_t *vd,*ad = NULL,*sd = NULL;
  int afmt =DEMUXER_TYPE_UNKNOWN,sfmt = DEMUXER_TYPE_UNKNOWN ;

  demux_aid_vid_mismatch = 0;

  if(audio_stream) {
    as = open_stream(audio_stream,0,&afmt);
    if(!as) {
      mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_CannotOpenAudioStream,audio_stream);
      return NULL;
    }
    if(audio_stream_cache) {
      if(!stream_enable_cache(as,audio_stream_cache*1024,audio_stream_cache*1024*(stream_cache_min_percent / 100.0),
			      audio_stream_cache*1024*(stream_cache_prefill_percent / 100.0))) {
	free_stream(as);
	mp_msg(MSGT_DEMUXER,MSGL_ERR,"Can't enable audio stream cache\n");
	return NULL;
      }
    }
  }
  if(sub_stream) {
    ss = open_stream(sub_stream,0,&sfmt);
    if(!ss) {
      mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_CannotOpenSubtitlesStream,sub_stream);
      return NULL;
    }
  }

  vd = demux_open_stream(vs,demuxer_type ? demuxer_type : file_format,audio_stream ? -2 : audio_id,video_id, sub_stream ? -2 : dvdsub_id, filename);
  if(!vd) {
    if(as) free_stream(as);
    if(ss) free_stream(ss);
    return NULL;
  }
  if(as) {
    ad = demux_open_stream(as,audio_demuxer_type ? audio_demuxer_type : afmt,audio_id,-2,-2, audio_stream);
    if(!ad) {
      mp_msg(MSGT_DEMUXER,MSGL_WARN,MSGTR_OpeningAudioDemuxerFailed,audio_stream);
      free_stream(as);
    }
    else if(ad->audio->sh && ((sh_audio_t*)ad->audio->sh)->format == 0x55) // MP3
      hr_mp3_seek=1; // Enable high res seeking
  }
  if(ss) {
    sd = demux_open_stream(ss,sub_demuxer_type ? sub_demuxer_type : sfmt,-2,-2,dvdsub_id, sub_stream);
    if(!sd) {
      mp_msg(MSGT_DEMUXER,MSGL_WARN,MSGTR_OpeningSubtitlesDemuxerFailed,sub_stream);
      free_stream(ss);
    }
  }

  if(ad && sd)
    return new_demuxers_demuxer(vd,ad,sd);
  else if(ad)
    return new_demuxers_demuxer(vd,ad,vd);
  else if(sd)
    return new_demuxers_demuxer(vd,vd,sd);
  else
    return vd;
}

int demux_seek_avi(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_asf(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_mpg(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_ty(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_y4m(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_fli(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_film(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_mf(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_nuv(demuxer_t *demuxer,float rel_seek_secs,int flags);
//void demux_seek_mov(demuxer_t *demuxer,float pts,int flags);
int demux_seek_real(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_pva(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_ts(demuxer_t *demuxer,float rel_seek_secs,int flags);
int demux_seek_lavf(demuxer_t *demuxer,float rel_seek_secs,int flags);
#ifdef USE_WIN32DLL
int demux_seek_avs(demuxer_t *demuxer,float rel_seek_secs,int flags);
#endif

#ifdef HAVE_LIBDV095
int demux_seek_rawdv(demuxer_t *demuxer, float pts, int flags);
#endif

extern void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_demuxers_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_ogg_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_rawaudio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_rawvideo_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_xmms_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
extern void demux_mkv_seek(demuxer_t *demuxer,float rel_seek_secs,int flags);
//extern void demux_seek_vqf(demuxer_t *demuxer,float rel_seek_secs,int flags);

int demux_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
    demux_stream_t *d_audio=demuxer->audio;
    demux_stream_t *d_video=demuxer->video;
    sh_audio_t *sh_audio=d_audio->sh;
    sh_video_t *sh_video=d_video->sh;

if(!demuxer->seekable){
    if(demuxer->file_format==DEMUXER_TYPE_AVI)
	mp_msg(MSGT_SEEK,MSGL_WARN,MSGTR_CantSeekRawAVI);
#ifdef USE_TV
    else if (demuxer->file_format==DEMUXER_TYPE_TV)
	mp_msg(MSGT_SEEK,MSGL_WARN,MSGTR_TVInputNotSeekable);
#endif
    else
	mp_msg(MSGT_SEEK,MSGL_WARN,MSGTR_CantSeekFile);
    return 0;
}

    // clear demux buffers:
    if(sh_audio){ ds_free_packs(d_audio);sh_audio->a_buffer_len=0;}
    ds_free_packs(d_video);
    
    demuxer->stream->eof=0; // clear eof flag
    demuxer->video->eof=0;
    demuxer->audio->eof=0;

#if 0
    if(sh_audio) sh_audio->timer=sh_video->timer;
#else
    if(sh_audio) sh_audio->delay=0;
    if(sh_video) sh_video->timer=0; // !!!!!!
#endif

switch(demuxer->file_format){

#ifdef HAVE_LIBDV095
  case DEMUXER_TYPE_RAWDV:
      demux_seek_rawdv(demuxer,rel_seek_secs,flags);  break;
#endif
  case DEMUXER_TYPE_AVI:
      demux_seek_avi(demuxer,rel_seek_secs,flags);  break;

  case DEMUXER_TYPE_ASF:
      demux_seek_asf(demuxer,rel_seek_secs,flags);  break;

//  case DEMUXER_TYPE_MPEG_TY:
//      demux_seek_ty(demuxer,rel_seek_secs,flags);  break;
  
  case DEMUXER_TYPE_H264_ES:
  case DEMUXER_TYPE_MPEG4_ES:
  case DEMUXER_TYPE_MPEG_ES:
  case DEMUXER_TYPE_MPEG_PS:
      demux_seek_mpg(demuxer,rel_seek_secs,flags);  break;

//  case DEMUXER_TYPE_MOV:
//      demux_seek_mov(demuxer,rel_seek_secs,flags);  break;

  case DEMUXER_TYPE_REAL:
      demux_seek_real(demuxer,rel_seek_secs,flags);  break;

  case DEMUXER_TYPE_Y4M:
      demux_seek_y4m(demuxer,rel_seek_secs,flags);  break;

  case DEMUXER_TYPE_MF:
      demux_seek_mf(demuxer,rel_seek_secs,flags);  break;

  case DEMUXER_TYPE_PVA:
      demux_seek_pva(demuxer,rel_seek_secs,flags); break;
      
  case DEMUXER_TYPE_FLI:
      demux_seek_fli(demuxer,rel_seek_secs,flags);  break;
  case DEMUXER_TYPE_FILM:
      demux_seek_film(demuxer,rel_seek_secs,flags);  break;
  case DEMUXER_TYPE_NUV:
      demux_seek_nuv(demuxer,rel_seek_secs,flags);  break;
  case DEMUXER_TYPE_AUDIO:
      demux_audio_seek(demuxer,rel_seek_secs,flags);  break;
 case DEMUXER_TYPE_DEMUXERS:
      demux_demuxers_seek(demuxer,rel_seek_secs,flags);  break;
#ifdef HAVE_OGGVORBIS
 case DEMUXER_TYPE_OGG:
      demux_ogg_seek(demuxer,rel_seek_secs,flags);  break;
#endif
 case DEMUXER_TYPE_RAWAUDIO:
      demux_rawaudio_seek(demuxer,rel_seek_secs,flags);  break;
 case DEMUXER_TYPE_RAWVIDEO:
      demux_rawvideo_seek(demuxer,rel_seek_secs,flags);  break;
#ifdef HAVE_XMMS
 case DEMUXER_TYPE_XMMS:
      demux_xmms_seek(demuxer,rel_seek_secs,flags); break;
#endif
#ifdef HAVE_MATROSKA
 case DEMUXER_TYPE_MATROSKA:
      demux_mkv_seek(demuxer,rel_seek_secs,flags);  break;
#endif
 case DEMUXER_TYPE_MPEG_TS:
      demux_seek_ts(demuxer,rel_seek_secs,flags); break;
 #ifdef USE_LIBAVFORMAT
 case DEMUXER_TYPE_LAVF:
      demux_seek_lavf(demuxer,rel_seek_secs,flags); break;
 #endif
// case DEMUXER_TYPE_VQF:
//      demux_seek_vqf(demuxer,rel_seek_secs,flags); break;
 #ifdef USE_WIN32DLL
 case DEMUXER_TYPE_AVS:
      demux_seek_avs(demuxer,rel_seek_secs,flags); break;
 #endif

} // switch(demuxer->file_format)

return 1;
}

int demux_info_add(demuxer_t *demuxer, char *opt, char *param)
{
    char **info = demuxer->info;
    int n = 0;


    for(n = 0; info && info[2*n] != NULL; n++) 
      {
	if(!strcasecmp(opt,info[2*n]))
	  {
	    mp_msg(MSGT_DEMUX, MSGL_WARN,MSGTR_DemuxerInfoAlreadyPresent,opt);
	    return 0;
	  }
      }
    
    info = demuxer->info = (char**)realloc(info,(2*(n+2))*sizeof(char*));
    info[2*n] = strdup(opt);
    info[2*n+1] = strdup(param);
    memset(&info[2*(n+1)],0,2*sizeof(char*));

    return 1;
}

int demux_info_print(demuxer_t *demuxer)
{
    char **info = demuxer->info;
    int n;

    if(!info)
      return 0;

    mp_msg(MSGT_DEMUX, MSGL_INFO,MSGTR_ClipInfo);
    for(n = 0; info[2*n] != NULL ; n++)
      mp_msg(MSGT_DEMUX, MSGL_INFO, " %s: %s\n",info[2*n],info[2*n+1]);

    return 0;
}

char* demux_info_get(demuxer_t *demuxer, char *opt) {
  int i;
  char **info = demuxer->info;

  for(i = 0; info && info[2*i] != NULL; i++) {
    if(!strcasecmp(opt,info[2*i]))
      return info[2*i+1];
  }

  return NULL;
}

extern int demux_ty_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_mpg_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_asf_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_avi_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_xmms_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_mkv_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_audio_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_ogg_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_real_control(demuxer_t *demuxer, int cmd, void *arg);
extern int demux_lavf_control(demuxer_t *demuxer, int cmd, void *arg);
//extern int demux_mov_control(demuxer_t *demuxer, int cmd, void *arg);
#ifdef USE_WIN32DLL
extern int demux_avs_control(demuxer_t *demuxer, int cmd, void *arg);
#endif
#ifdef HAVE_LIBDV095
extern int demux_rawdv_control(demuxer_t *demuxer,int cmd, void *arg);
#endif

int demux_control(demuxer_t *demuxer, int cmd, void *arg) {
    switch(demuxer->type) {
//	case DEMUXER_TYPE_MPEG_TY:
//	    return demux_ty_control(demuxer,cmd,arg);
	case DEMUXER_TYPE_MPEG4_ES:
	case DEMUXER_TYPE_MPEG_ES:
	case DEMUXER_TYPE_MPEG_PS:
	case DEMUXER_TYPE_MPEG_TS:
	    return demux_mpg_control(demuxer,cmd,arg);
	case DEMUXER_TYPE_ASF:
	    return demux_asf_control(demuxer,cmd,arg);
	case DEMUXER_TYPE_AVI:
	case DEMUXER_TYPE_AVI_NI:
	case DEMUXER_TYPE_AVI_NINI:
	    return demux_avi_control(demuxer,cmd,arg);
	case DEMUXER_TYPE_AUDIO:
	    return demux_audio_control(demuxer,cmd,arg);
#ifdef HAVE_OGGVORBIS
	case DEMUXER_TYPE_OGG:
	    return demux_ogg_control(demuxer,cmd,arg);
#endif
#ifdef HAVE_XMMS
	case DEMUXER_TYPE_XMMS:
	    return demux_xmms_control(demuxer,cmd,arg);
#endif
#ifdef HAVE_MATROSKA
        case DEMUXER_TYPE_MATROSKA:
	    return demux_mkv_control(demuxer,cmd,arg);
#endif
	case DEMUXER_TYPE_REAL:
	    return demux_real_control(demuxer, cmd, arg);
#ifdef USE_LIBAVFORMAT
        case DEMUXER_TYPE_LAVF:
	    return demux_lavf_control(demuxer, cmd, arg);
#endif
//        case DEMUXER_TYPE_MOV:
//   	    return demux_mov_control(demuxer, cmd, arg);
#ifdef USE_WIN32DLL
        case DEMUXER_TYPE_AVS:
   	    return demux_avs_control(demuxer, cmd, arg);
#endif 
#ifdef HAVE_LIBDV095
        case DEMUXER_TYPE_RAWDV:
            return demux_rawdv_control(demuxer,cmd, arg);
#endif
	default:
	    return DEMUXER_CTRL_NOTIMPL;
    }
}



unsigned long demuxer_get_time_length(demuxer_t *demuxer){     
    unsigned long get_time_ans;     
    sh_video_t *sh_video = demuxer->video->sh;
    // <= 0 means DEMUXER_CTRL_NOTIMPL or DEMUXER_CTRL_DONTKNOW
    if (demux_control(demuxer, DEMUXER_CTRL_GET_TIME_LENGTH,(void *)&get_time_ans)<=0)  {
      if (sh_video && sh_video->i_bps)
        get_time_ans = (demuxer->movi_end-demuxer->movi_start)/sh_video->i_bps;
      else
        get_time_ans=0;     
    }
    return get_time_ans;
}

int demuxer_get_percent_pos(demuxer_t *demuxer){     
    int ans = 0;
    int res = demux_control(demuxer, DEMUXER_CTRL_GET_PERCENT_POS, &ans);
    int len = (demuxer->movi_end - demuxer->movi_start) / 100;
    if (res <= 0) {
      if (len > 0)
      ans = (demuxer->filepos - demuxer->movi_start) / len;
      else
       ans = 0;
    }
    if (ans < 0) ans = 0;
    if (ans > 100) ans = 100;
    return ans;
}

int demuxer_switch_audio(demuxer_t *demuxer){     
    int ans = 0;
    int res = demux_control(demuxer, DEMUXER_CTRL_SWITCH_AUDIO, &ans);
    return ans;
}