mplayer.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.

  prog_path = argv[0];
#endif
  //========= Catch terminate signals: ================
  // terminate requests:
  signal(SIGTERM,exit_sighandler); // kill
  signal(SIGHUP,exit_sighandler);  // kill -HUP  /  xterm closed

  signal(SIGINT,exit_sighandler);  // Interrupt from keyboard

  signal(SIGQUIT,exit_sighandler); // Quit from keyboard
#ifdef ENABLE_SIGHANDLER
  // fatal errors:
  signal(SIGBUS,exit_sighandler);  // bus error
  signal(SIGSEGV,exit_sighandler); // segfault
  signal(SIGILL,exit_sighandler);  // illegal instruction
  signal(SIGFPE,exit_sighandler);  // floating point exc.
  signal(SIGABRT,exit_sighandler); // abort()
#ifdef CRASH_DEBUG
  if (crash_debug)
    signal(SIGTRAP,exit_sighandler);
#endif
#endif

#ifdef HAVE_NEW_GUI
  if(use_gui){
       guiInit();
       inited_flags|=INITED_GUI;
       guiGetEvent( guiCEvent,(char *)((gui_no_filename) ? 0 : 1) );
  }
#endif

// ******************* Now, let's see the per-file stuff ********************

play_next_file:

  // init global sub numbers
  if (filename) load_per_file_config (mconfig, filename);

// We must enable getch2 here to be able to interrupt network connection
// or cache filling
if(!noconsolecontrols && !slave_mode){
  if(inited_flags&INITED_GETCH2)
    mp_msg(MSGT_CPLAYER,MSGL_WARN,MSGTR_Getch2InitializedTwice);
  else
    getch2_enable();  // prepare stdin for hotkeys...
  inited_flags|=INITED_GETCH2;
  mp_msg(MSGT_CPLAYER,MSGL_DBG2,"\n[[[init getch2]]]\n");
}

// =================== GUI idle loop (STOP state) ===========================
#ifdef HAVE_NEW_GUI
    if ( use_gui ) {
      file_format=DEMUXER_TYPE_UNKNOWN;
      guiGetEvent( guiSetDefaults,0 );
      while ( guiIntfStruct.Playing != 1 )
       {
        mp_cmd_t* cmd;                                                                                   
	usec_sleep(20000);
	guiEventHandling();
	guiGetEvent( guiReDraw,NULL );
	if ( (cmd = mp_input_get_cmd(0,0,0)) != NULL) guiGetEvent( guiIEvent,(char *)cmd->id );
       } 
      guiGetEvent( guiSetParameters,NULL );
      if ( guiIntfStruct.StreamType == STREAMTYPE_STREAM )
       {
        play_tree_t * entry = play_tree_new();
        play_tree_add_file( entry,guiIntfStruct.Filename );
        if ( playtree ) play_tree_free_list( playtree->child,1 );
         else playtree=play_tree_new();
        play_tree_set_child( playtree,entry );
        if(playtree)
	 {
	  playtree_iter = play_tree_iter_new(playtree,mconfig);
	  if(playtree_iter)
	   {
	    if(play_tree_iter_step(playtree_iter,0,0) != PLAY_TREE_ITER_ENTRY)
	     {
	      play_tree_iter_free(playtree_iter);
	      playtree_iter = NULL;
	     }
	    filename = play_tree_iter_get_file(playtree_iter,1);
	   }
         }
       } 
    }
#endif
//---------------------------------------------------------------------------

    if(filename) mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_Playing, filename);

//==================== Open VOB-Sub ============================
//============ Open & Sync STREAM --- fork cache2 ====================

  stream=NULL;
  demuxer=NULL;
  if (d_audio) {
    //free_demuxer_stream(d_audio);
    d_audio=NULL;
  }
  if (d_video) {
    //free_demuxer_stream(d_video);
    d_video=NULL;
  }
  sh_audio=NULL;
  sh_video=NULL;

  current_module="open_stream";
  stream=open_stream(filename,0,&file_format);
  if(!stream) { // error...
    eof = libmpdemux_was_interrupted(PT_NEXT_ENTRY);
    goto goto_next_file;
  }
  inited_flags|=INITED_STREAM;

#ifdef HAVE_NEW_GUI
  if ( use_gui ) guiGetEvent( guiSetStream,(char *)stream );
#endif

  if(file_format == DEMUXER_TYPE_PLAYLIST) {
    play_tree_t* entry;
    // Handle playlist
    current_module="handle_playlist";
    mp_msg(MSGT_CPLAYER,MSGL_V,"Parsing playlist %s...\n",filename);
    entry = parse_playtree(stream,0);
    eof=playtree_add_playlist(entry);
    goto goto_next_file;
  }
  stream->start_pos+=seek_to_byte;

if(stream_dump_type==5){
  unsigned char buf[4096];
  int len;
  FILE *f;
  current_module="dumpstream";
  if(stream->type==STREAMTYPE_STREAM && stream->fd<0){
    mp_msg(MSGT_CPLAYER,MSGL_FATAL,MSGTR_DumpstreamFdUnavailable);
    exit_player(MSGTR_Exit_error);
  }
  stream_reset(stream);
  stream_seek(stream,stream->start_pos);
  f=fopen(stream_dump_name,"wb");
  if(!f){
    mp_msg(MSGT_CPLAYER,MSGL_FATAL,MSGTR_CantOpenDumpfile);
    exit_player(MSGTR_Exit_error);
  }
  while(!stream->eof){
      len=stream_read(stream,buf,4096);
      if(len>0) {
        if(fwrite(buf,len,1,f) != 1) {
          mp_msg(MSGT_MENCODER,MSGL_FATAL,MSGTR_ErrorWritingFile,stream_dump_name);
          exit_player(MSGTR_Exit_error);
        }
      }
  }
  if(fclose(f)) {
    mp_msg(MSGT_MENCODER,MSGL_FATAL,MSGTR_ErrorWritingFile,stream_dump_name);
    exit_player(MSGTR_Exit_error);
  }
  mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_CoreDumped);
  exit_player_with_rc(MSGTR_Exit_eof, 0);
}

#ifdef USE_DVDREAD
if(stream->type==STREAMTYPE_DVD){
  current_module="dvd lang->id";
  if(audio_id==-1) audio_id=dvd_aid_from_lang(stream,audio_lang);
  if(dvdsub_lang && dvdsub_id==-1) dvdsub_id=dvd_sid_from_lang(stream,dvdsub_lang);
  // setup global sub numbering
  global_sub_indices[SUB_SOURCE_DEMUX] = global_sub_size; // the global # of the first demux-specific sub.
  global_sub_size += dvd_number_of_subs(stream);
  current_module=NULL;
}
#endif

#ifdef USE_DVDNAV
  if (stream->type==STREAMTYPE_DVDNAV) stream_cache_size=0;	// must disable caching...
#endif

// CACHE2: initial prefill: 20%  later: 5%  (should be set by -cacheopts)
#ifdef HAS_DVBIN_SUPPORT
goto_enable_cache:
#endif
if(stream_cache_size>0){
  current_module="enable_cache";
  if(!stream_enable_cache(stream,stream_cache_size*1024,stream_cache_size*1024*(stream_cache_min_percent / 100.0),stream_cache_size*1024*(stream_cache_prefill_percent / 100.0)))
    if((eof = libmpdemux_was_interrupted(PT_NEXT_ENTRY))) goto goto_next_file;
}

//============ Open DEMUXERS --- DETECT file type =======================
current_module="demux_open";

demuxer=demux_open(stream,file_format,audio_id,video_id,dvdsub_id,filename);

// HACK to get MOV Reference Files working

if (demuxer && demuxer->type==DEMUXER_TYPE_PLAYLIST)
{ 
  unsigned char* playlist_entry;
  play_tree_t *list = NULL, *entry = NULL;

  current_module="handle_demux_playlist";
  while (ds_get_packet(demuxer->video,&playlist_entry)>0)
  {	 
    char *temp, *bname;
    
    mp_msg(MSGT_CPLAYER,MSGL_V,"Adding file %s to element entry.\n",playlist_entry);

    bname=mp_basename(playlist_entry);
    if ((strlen(bname)>10) && !strncmp(bname,"qt",2) && !strncmp(bname+3,"gateQT",6))
        continue;

    if (!strncmp(bname,mp_basename(filename),strlen(bname))) // ignoring self-reference
        continue;

    entry = play_tree_new();
    
    if (filename && !strcmp(mp_basename(playlist_entry),playlist_entry)) // add reference path of current file
    {
      temp=malloc((strlen(filename)-strlen(mp_basename(filename))+strlen(playlist_entry)+1)*sizeof(char));
      if (temp)
      {
	strncpy(temp, filename, strlen(filename)-strlen(mp_basename(filename)));
	temp[strlen(filename)-strlen(mp_basename(filename))]='\0';
	strcat(temp, playlist_entry);
	play_tree_add_file(entry,temp);
	mp_msg(MSGT_CPLAYER,MSGL_V,"Resolving reference to %s.\n",temp);
	free(temp);
      }
    }
    else
      play_tree_add_file(entry,playlist_entry);
    
    if(!list)
      list = entry;
    else
      play_tree_append_entry(list,entry);
  }
  free_demuxer(demuxer);
  demuxer = NULL;

  if (list)
  {
    entry = play_tree_new();
    play_tree_set_child(entry,list);
    eof=playtree_add_playlist(entry);
    goto goto_next_file;
  }
}

if(!demuxer) 
{
#if 0
  play_tree_t* entry;
  // Handle playlist
  current_module="handle_playlist";
  switch(stream->type){
  case STREAMTYPE_VCD:
  case STREAMTYPE_DVD:
  case STREAMTYPE_DVDNAV:
  case STREAMTYPE_CDDA:
  case STREAMTYPE_VCDBINCUE:
    // don't try to parse raw media as playlist, it's unlikely
    goto goto_next_file;
  }
  mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_FallingBackOnPlaylist,filename);
  stream_reset(stream);
  stream_seek(stream,stream->start_pos);
  entry = parse_playtree(stream,0);
  if(!entry)
    mp_msg(MSGT_DEMUXER,MSGL_ERR,MSGTR_FormatNotRecognized);
  else
    eof=playtree_add_playlist(entry);
#endif
  goto goto_next_file;
}
inited_flags|=INITED_DEMUXER;

#ifdef HAVE_MATROSKA
if (demuxer->type==DEMUXER_TYPE_MATROSKA) {
  // setup global sub numbering
  global_sub_indices[SUB_SOURCE_DEMUX] = global_sub_size; // the global # of the first demux-specific sub.
  global_sub_size += demux_mkv_num_subs(demuxer);
}
#endif
#ifdef HAVE_OGGVORBIS
if (demuxer->type==DEMUXER_TYPE_OGG) {
  // setup global sub numbering
  global_sub_indices[SUB_SOURCE_DEMUX] = global_sub_size; // the global # of the first demux-specific sub.
  global_sub_size += demux_ogg_num_subs(demuxer);
}
#endif

current_module="demux_open2";

file_format=demuxer->file_format;

d_audio=demuxer->audio;
d_video=demuxer->video;
d_dvdsub=demuxer->sub;

// DUMP STREAMS:
if((stream_dump_type)&&(stream_dump_type<4)){
  FILE *f;
  demux_stream_t *ds=NULL;
  current_module="dump";
  // select stream to dump
  switch(stream_dump_type){
  case 1: ds=d_audio;break;
  case 2: ds=d_video;break;
  case 3: ds=d_dvdsub;break;
  }
  if(!ds){        
      mp_msg(MSGT_CPLAYER,MSGL_FATAL,MSGTR_DumpSelectedStreamMissing);
      exit_player(MSGTR_Exit_error);
  }
  // disable other streams:
  if(d_audio && d_audio!=ds) {ds_free_packs(d_audio); d_audio->id=-2; }
  if(d_video && d_video!=ds) {ds_free_packs(d_video); d_video->id=-2; }
  if(d_dvdsub && d_dvdsub!=ds) {ds_free_packs(d_dvdsub); d_dvdsub->id=-2; }
  // let's dump it!
  f=fopen(stream_dump_name,"wb");
  if(!f){
    mp_msg(MSGT_CPLAYER,MSGL_FATAL,MSGTR_CantOpenDumpfile);
    exit_player(MSGTR_Exit_error);
  }
  while(!ds->eof){
    unsigned char* start;
    int in_size=ds_get_packet(ds,&start);
    if( (demuxer->file_format==DEMUXER_TYPE_AVI || demuxer->file_format==DEMUXER_TYPE_ASF || demuxer->file_format==DEMUXER_TYPE_MOV)
	&& stream_dump_type==2) fwrite(&in_size,1,4,f);
    if(in_size>0) fwrite(start,in_size,1,f);
  }
  fclose(f);
  mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_CoreDumped);
  exit_player_with_rc(MSGTR_Exit_eof, 0);
}

sh_audio=d_audio->sh;
sh_video=d_video->sh;

fflush(stdout);

if(!sh_audio){
    mp_msg(MSGT_CPLAYER,MSGL_FATAL, MSGTR_NoStreamFound);
    goto goto_next_file; // exit_player(MSGTR_Exit_error);
}
/* display clip info */
demux_info_print(demuxer);

//================== Read SUBTITLES (DVD & TEXT) ==========================
//================== Init AUDIO (codec) ==========================
if(sh_audio){
  // Go through the codec.conf and find the best codec...
  current_module="init_audio_codec";
  mp_msg(MSGT_CPLAYER,MSGL_INFO,"==========================================================================\n");
  if(!init_best_audio_codec(sh_audio,audio_codec_list,audio_fm_list)){
    sh_audio=d_audio->sh=NULL; // failed to init :(
  } else
    inited_flags|=INITED_ACODEC;
  mp_msg(MSGT_CPLAYER,MSGL_INFO,"==========================================================================\n");
}

if(identify) {
  mp_msg(MSGT_GLOBAL,MSGL_INFO,"ID_FILENAME=%s\n", filename);
  if (sh_audio) {
    if (sh_audio->codec)
      mp_msg(MSGT_GLOBAL,MSGL_INFO, "ID_AUDIO_CODEC=%s\n", sh_audio->codec->name);
    /* Assume FOURCC if all bytes >= 0x20 (' ') */
    if (sh_audio->format >= 0x20202020)
      mp_msg(MSGT_GLOBAL,MSGL_INFO, "ID_AUDIO_FORMAT=%.4s\n", &sh_audio->format);
    else
      mp_msg(MSGT_GLOBAL,MSGL_INFO,"ID_AUDIO_FORMAT=%d\n", sh_audio->format);
    mp_msg(MSGT_GLOBAL,MSGL_INFO,"ID_AUDIO_BITRATE=%d\n", sh_audio->i_bps*8);
    mp_msg(MSGT_GLOBAL,MSGL_INFO,"ID_AUDIO_RATE=%d\n", sh_audio->samplerate);
    mp_msg(MSGT_GLOBAL,MSGL_INFO,"ID_AUDIO_NCH=%d\n", sh_audio->channels);
  }
  mp_msg(MSGT_GLOBAL,MSGL_INFO,"ID_LENGTH=%ld\n", demuxer_get_time_length(demuxer));
}
if(!sh_video) goto main; // audio-only

//================== Init VIDEO (codec & libvo) ==========================
//================== MAIN: ==========================
main:
current_module="main";

// If there is no video OSD has to be disabled.
// In case of playing a playtree we have to restore the
// old OSD level after playing one or more audio-only files.
if(!sh_video && osd_level >= 0) { // save OSD level only once
    osd_level_saved = osd_level;
    osd_level = 0;
} else if (osd_level_saved > -1) { // if there is a saved OSD level, restore it
    osd_level = osd_level_saved;
    osd_level_saved = -1;
}

fflush(stdout);

#ifdef HAVE_NEW_GUI
   if ( use_gui )
    {
     if ( sh_audio ) guiIntfStruct.AudioType=sh_audio->channels; else guiIntfStruct.AudioType=0;
     if ( !sh_video && sh_audio ) guiGetEvent( guiSetAudioOnly,(char *)1 ); else guiGetEvent( guiSetAudioOnly,(char *)0 );
     guiGetEvent( guiSetFileFormat,(char *)demuxer->file_format );
     if ( guiGetEvent( guiSetValues,(char *)sh_video ) ) goto goto_next_file;
     guiGetEvent( guiSetDemuxer,(char *)demuxer );
    }
#endif

{
//int frame_corr_num=0;   //
//float v_frame=0;    // Video
float time_frame=0; // Timer
//float num_frames=0;      // number of frames played
int grab_frames=0;
char osd_text_buffer[64];
char osd_show_text_buffer[64];
int drop_frame=0;     // current dropping status
int dropped_frames=0; // how many frames dropped since last non-dropped frame
int too_slow_frame_cnt=0;
int too_fast_frame_cnt=0;
// for auto-quality:
float AV_delay=0; // average of A-V timestamp differences
double vdecode_time;
unsigned int lastframeout_ts=0;
/*float time_frame_corr_avg=0;*/ /* unused */

float next_frame_time=0;
int frame_time_remaining=0; // flag
int blit_frame=0;

osd_text_buffer[0]=0;

//================ SETUP AUDIO ==========================

if(sh_audio){
  //const ao_info_t *info=audio_out->info;
  current_module="af_preinit";
  ao_data.samplerate=force_srate?force_srate:sh_audio->samplerate*playback_speed;
  ao_data.channels=audio_output_channels?audio_output_channels:sh_audio->channels;
  ao_data.format=audio_output_format?audio_output_format:sh_audio->sample_format;
#if 1
  if(!preinit_audio_filters(sh_audio,
        // input:
        (int)(sh_audio->samplerate*playback_speed),
	sh_audio->channels, sh_audio->sample_format,
	// output:
	&ao_data.samplerate, &ao_data.channels, &ao_data.format)){
      mp_msg(MSGT_CPLAYER,MSGL_ERR,MSGTR_AudioFilterChainPreinitError);
  }
#endif  
  current_module="ao2_init";
  if(!(audio_out=init_best_audio_out(audio_driver_list,
      0, // plugin flag
      force_srate?force_srate:ao_data.samplerate,
      audio_output_channels?audio_output_channels:ao_data.channels,
      audio_output_format?audio_output_format:ao_data.format,0))){
    // FAILED:
    mp_msg(MSGT_CPLAYER,MSGL_ERR,MSGTR_CannotInitAO);
    uninit_player(INITED_ACODEC); // close codec
    sh_audio=d_audio->sh=NULL; // -> nosound
  } else {
    // SUCCESS:
    inited_flags|=INITED_AO;
    mp_msg(MSGT_CPLAYER,MSGL_INFO,"AO: [%s] %dHz %dch %s (%d bps)\n",
      audio_out->info->short_name,
      ao_data.samplerate, ao_data.channels,
      af_fmt2str_short(ao_data.format),
      af_fmt2bits(ao_data.format)/8 );
    mp_msg(MSGT_CPLAYER,MSGL_V,"AO: Description: %s\nAO: Author: %s\n",
      audio_out->info->name, audio_out->info->author);
    if(strlen(audio_out->info->comment) > 0)
      mp_msg(MSGT_CPLAYER,MSGL_V,"AO: Comment: %s\n", audio_out->info->comment);
    // init audio filters:
#if 1
    current_module="af_init";
    if(!build_afilter_chain(sh_audio, &ao_data)) {
      mp_msg(MSGT_CPLAYER,MSGL_ERR,MSGTR_NoMatchingFilter);
//      mp_msg(MSGT_CPLAYER,MSGL_ERR,"Couldn't find matching filter / ao format! -> NOSOUND\n");
//      uninit_player(INITED_ACODEC|INITED_AO); // close codec & ao
//      sh_audio=d_audio->sh=NULL; // -> nosound
    }
#endif
  }
  mixer.audio_out = audio_out;
  mixer.volstep = volstep;