mplayer_novideo_0.20.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.

//==================== START PLAYING =======================

if(loop_times>1) loop_times--; else
if(loop_times==1) loop_times = -1;

mp_msg(MSGT_CPLAYER,MSGL_INFO,MSGTR_StartPlaying);fflush(stdout); //"starting  playback..."

InitTimer();



total_time_usage_start=GetTimer();
audio_time_usage=0; video_time_usage=0; vout_time_usage=0;
total_frame_cnt=0; drop_frame_cnt=0; // fix for multifile fps benchmark
play_n_frames=play_n_frames_mf;

if(play_n_frames==0){
  eof=PT_NEXT_ENTRY; goto goto_next_file;
}

while(!eof){
    float aq_sleep_time=0;

    if(play_n_frames>=0){
      --play_n_frames;
      if(play_n_frames<0) eof = PT_NEXT_ENTRY;
    }

/*========================== PLAY AUDIO ============================*/

while(sh_audio){
  unsigned int t;
  double tt;
  int playsize;

  current_module="play_audio";
  
  ao_data.pts=((sh_video?sh_video->timer:0)+sh_audio->delay)*90000.0;
  playsize=audio_out->get_space();
  
  // handle audio-only case:
  if(playsize < ao_data.outburst &&
      !sh_video) {  // buffer is full, do not block here!!!
    usec_sleep(10000); // Wait a tick before retry
    continue;
  }
  
  if(playsize>MAX_OUTBURST) playsize=MAX_OUTBURST; // we shouldn't exceed it!

  // Fill buffer if needed:
  current_module="decode_audio";   // Enter AUDIO decoder module
  t=GetTimer();
  while(sh_audio->a_out_buffer_len<playsize && !d_audio->eof){
    int ret=decode_audio(sh_audio,&sh_audio->a_out_buffer[sh_audio->a_out_buffer_len],
        playsize-sh_audio->a_out_buffer_len,sh_audio->a_out_buffer_size-sh_audio->a_out_buffer_len);
    if(ret<=0) break; // EOF?
    sh_audio->a_out_buffer_len+=ret;
  }
  t=GetTimer()-t;
  tt = t*0.000001f; audio_time_usage+=tt;
  if(playsize>sh_audio->a_out_buffer_len) playsize=sh_audio->a_out_buffer_len;

  // play audio:  
  current_module="play_audio";
  playsize=audio_out->play(sh_audio->a_out_buffer,playsize,0);

  if(playsize>0){
      sh_audio->a_out_buffer_len-=playsize;
      memmove(sh_audio->a_out_buffer,&sh_audio->a_out_buffer[playsize],sh_audio->a_out_buffer_len);
      sh_audio->delay+=playback_speed*playsize/((float)((ao_data.bps && sh_audio->afilter) ?
          ao_data.bps : sh_audio->o_bps));
  }

  break;
} // while(sh_audio)


  if(!quiet) {
    float a_pos = sh_audio->delay - audio_out->get_delay() * playback_speed;
    print_status(a_pos, 0, 0);
  }
  if(d_audio->eof) eof = PT_NEXT_ENTRY;



/*========================== PLAY VIDEO ============================*/

//============================ Handle PAUSE ===============================

  current_module="pause";

#ifdef USE_OSD
  if(osd_visible){
    if (!--osd_visible){
       vo_osd_progbar_type=-1; // disable
       vo_osd_changed(OSDTYPE_PROGBAR);
       if (osd_function != OSD_PAUSE)
	   osd_function = OSD_PLAY;
    }
  }
#endif

  if(osd_function==OSD_PAUSE){
    mp_cmd_t* cmd;
      if(!quiet) {
	mp_msg(MSGT_CPLAYER,MSGL_STATUS,MSGTR_Paused);
	fflush(stdout);
      }

      if (video_out && sh_video && vo_config_count)
	 video_out->control(VOCTRL_PAUSE, NULL);

      if (audio_out && sh_audio)
         audio_out->pause();	// pause audio, keep data if possible

      while( (cmd = mp_input_get_cmd(20,1,1)) == NULL) {
	     if(sh_video && video_out && vo_config_count) video_out->check_events();


             usec_sleep(20000);
         }
      if (cmd && cmd->id == MP_CMD_PAUSE) {
      cmd = mp_input_get_cmd(0,1,0);
      mp_cmd_free(cmd);
      }
         osd_function=OSD_PLAY;
      if (audio_out && sh_audio)
        audio_out->resume();	// resume audio
      if (video_out && sh_video && vo_config_count)
        video_out->control(VOCTRL_RESUME, NULL);	// resume video
      (void)GetRelativeTime();	// keep TF around FT in next cycle

  }

// handle -sstep
if(step_sec>0) {
	osd_function=OSD_FFW;
	rel_seek_secs+=step_sec;
}



//================= EDL =========================================



//================= Keyboard events, SEEKing ====================

  current_module="key_events";

{
  mp_cmd_t* cmd;
  int brk_cmd = 0;
  while( !brk_cmd && (cmd = mp_input_get_cmd(0,0,0)) != NULL) {
    switch(cmd->id) {
    case MP_CMD_SEEK : {
      float v;
      int abs;
      osd_show_percentage = 25;
      v = cmd->args[0].v.f;
      abs = (cmd->nargs > 1) ? cmd->args[1].v.i : 0;
      if(abs==2) { /* Absolute seek to a specific timestamp in seconds */
        abs_seek_pos = 1;
	if(sh_video)
	  osd_function= (v > sh_video->timer) ? OSD_FFW : OSD_REW;
	rel_seek_secs = v;
      }
      else if(abs) { /* Absolute seek by percentage */
	abs_seek_pos = 3;
	if(sh_video)
	  osd_function= (v > sh_video->timer) ? OSD_FFW : OSD_REW;
	rel_seek_secs = v/100.0;
      }
      else {
	rel_seek_secs+= v;
	osd_function= (v > 0) ? OSD_FFW : OSD_REW;
      }
      brk_cmd = 1;
    } break;

    case MP_CMD_SWITCH_RATIO : {
      if (cmd->nargs == 0)
	movie_aspect = (float) sh_video->disp_w / sh_video->disp_h;
      else
	movie_aspect = cmd->args[0].v.f;
      mpcodecs_config_vo (sh_video, sh_video->disp_w, sh_video->disp_h, 0);
    } break;
    case MP_CMD_AUDIO_DELAY : {
      float v = cmd->args[0].v.f;
      audio_delay += v;
      osd_show_av_delay = 9;
      if(sh_audio) sh_audio->delay+= v;
    } break;
    case MP_CMD_SPEED_INCR : {
      float v = cmd->args[0].v.f;
      playback_speed += v;
      if (sh_video)
      osd_show_speed = sh_video->fps;
      build_afilter_chain(sh_audio, &ao_data);
    } break;
    case MP_CMD_SPEED_MULT : {
      float v = cmd->args[0].v.f;
      playback_speed *= v;
      if (sh_video)
      osd_show_speed = sh_video->fps;
      build_afilter_chain(sh_audio, &ao_data);
    } break;
    case MP_CMD_SPEED_SET : {
      float v = cmd->args[0].v.f;
      playback_speed = v;
      if (sh_video)
      osd_show_speed = sh_video->fps;
      build_afilter_chain(sh_audio, &ao_data);
    } break;
    case MP_CMD_FRAME_STEP :
    case MP_CMD_PAUSE : {
      cmd->pausing = 1;
      brk_cmd = 1;
    } break;
    case MP_CMD_QUIT : {
      exit_player_with_rc(MSGTR_Exit_quit, (cmd->nargs > 0)? cmd->args[0].v.i : 0);
    }
    case MP_CMD_GRAB_FRAMES : {
      grab_frames=2;
    } break;
    case MP_CMD_PLAY_TREE_STEP : {
      int n = cmd->args[0].v.i == 0 ? 1 : cmd->args[0].v.i;
      int force = cmd->args[1].v.i;

      if(!force && playtree_iter) {
	play_tree_iter_t* i = play_tree_iter_new_copy(playtree_iter);
	
	if(play_tree_iter_step(i,n,0) == PLAY_TREE_ITER_ENTRY)
	  eof = (n > 0) ? PT_NEXT_ENTRY : PT_PREV_ENTRY;
	play_tree_iter_free(i);
      } else
	eof = (n > 0) ? PT_NEXT_ENTRY : PT_PREV_ENTRY;
      if(eof)
	play_tree_step = n;
      brk_cmd = 1;
    } break;
    case MP_CMD_PLAY_TREE_UP_STEP : {
      int n = cmd->args[0].v.i > 0 ? 1 : -1;
      int force = cmd->args[1].v.i;

      if(!force && playtree_iter) {
	play_tree_iter_t* i = play_tree_iter_new_copy(playtree_iter);
	if(play_tree_iter_up_step(i,n,0) == PLAY_TREE_ITER_ENTRY)
	  eof = (n > 0) ? PT_UP_NEXT : PT_UP_PREV;
	play_tree_iter_free(i);
      } else
	eof = (n > 0) ? PT_UP_NEXT : PT_UP_PREV;
      brk_cmd = 1;
    } break;
    case MP_CMD_PLAY_ALT_SRC_STEP : {
      if(playtree_iter && playtree_iter->num_files > 1) {
	int v = cmd->args[0].v.i;
	if(v > 0 && playtree_iter->file < playtree_iter->num_files)
	  eof = PT_NEXT_SRC;
	else if(v < 0 && playtree_iter->file > 1)
	  eof = PT_PREV_SRC;
      }
      brk_cmd = 1;
    } break;
    case MP_CMD_SUB_DELAY : {
#ifdef USE_SUB
    if (sh_video) {
      int abs= cmd->args[1].v.i;
      float v = cmd->args[0].v.f;
      if(abs)
	sub_delay = v;
      else
	sub_delay += v;
      osd_show_sub_delay = 9; // show the subdelay in OSD
    }
#endif
    } break;
    case MP_CMD_SUB_STEP : {
#ifdef USE_SUB
    if (sh_video) {
      int movement = cmd->args[0].v.i;
      step_sub(subdata, sh_video->pts, movement);
      osd_show_sub_delay = 9; // show the subdelay in OSD
    }
#endif
    } break;
    case MP_CMD_SUB_LOG : {
#ifdef USE_SUB
	log_sub();
#endif
    } break;
    case MP_CMD_OSD :  {
#ifdef USE_OSD
      if(sh_video) {
	int v = cmd->args[0].v.i;
	if(v < 0)
	  osd_level=(osd_level+1)%(MAX_OSD_LEVEL+1);
	else
	  osd_level= v > MAX_OSD_LEVEL ? MAX_OSD_LEVEL : v;
      }
#endif
    } break;
    case MP_CMD_OSD_SHOW_TEXT :  {
#ifdef USE_OSD
      if(osd_level && sh_video){
	osd_show_text=sh_video->fps; // 1 sec
        strncpy(osd_show_text_buffer, cmd->args[0].v.s, 64);
      }
#endif
    } break;
    case MP_CMD_VOLUME :  {
      int v = cmd->args[0].v.i;

		// start change for absolute volume value
		int abs = (cmd->nargs > 1) ? cmd->args[1].v.i : 0;
		

		if( abs )
		{
			mixer_setvolume(&mixer, (float)v, (float)v );
		} else {
      if(v > 0)
	mixer_incvolume(&mixer);
      else
	mixer_decvolume(&mixer);
		}
	  
#ifdef USE_OSD
      if(osd_level && sh_video){
        float vol;
	osd_visible=sh_video->fps; // 1 sec
	vo_osd_progbar_type=OSD_VOLUME;
	mixer_getbothvolume(&mixer, &vol);
	vo_osd_progbar_value=(vol*256.0)/100.0;
	vo_osd_changed(OSDTYPE_PROGBAR);
      }
#endif
    } break;
    case MP_CMD_MUTE:

      mixer_mute(&mixer);
      break;
    case MP_CMD_LOADFILE : {
      play_tree_t* e = play_tree_new();
      play_tree_add_file(e,cmd->args[0].v.s);

      // Go back to the start point
      while(play_tree_iter_up_step(playtree_iter,0,1) != PLAY_TREE_ITER_END)
	/* NOP */;
      play_tree_free_list(playtree->child,1);
      play_tree_set_child(playtree,e);
      play_tree_iter_step(playtree_iter,0,0);
      eof = PT_NEXT_SRC;
      brk_cmd = 1;
    } break;
    case MP_CMD_LOADLIST : {
      play_tree_t* e = parse_playlist_file(cmd->args[0].v.s);
      if(!e)
	mp_msg(MSGT_CPLAYER,MSGL_ERR,MSGTR_PlaylistLoadUnable,cmd->args[0].v.s);
      else {
	// Go back to the start point
	while(play_tree_iter_up_step(playtree_iter,0,1) != PLAY_TREE_ITER_END)
	  /* NOP */;
	play_tree_free_list(playtree->child,1);
	play_tree_set_child(playtree,e);
	play_tree_iter_step(playtree_iter,0,0);
	eof = PT_NEXT_SRC;	
      }
      brk_cmd = 1;
    } break;
    case MP_CMD_GAMMA :  {
      int v = cmd->args[0].v.i, abs = cmd->args[1].v.i;

      if (!sh_video)
	break;

      if (vo_gamma_gamma == 1000)
      {
	vo_gamma_gamma = 0;
	get_video_colors (sh_video, "gamma", &vo_gamma_gamma);
      }

      if (abs)
        vo_gamma_gamma = v;
      else
        vo_gamma_gamma += v;

      if (vo_gamma_gamma > 100)
        vo_gamma_gamma = 100;
      else if (vo_gamma_gamma < -100)
        vo_gamma_gamma = -100;
      set_video_colors(sh_video, "gamma", vo_gamma_gamma);
#ifdef USE_OSD
       if(osd_level){
	 osd_visible=sh_video->fps; // 1 sec
	 vo_osd_progbar_type=OSD_BRIGHTNESS;
	 vo_osd_progbar_value=(vo_gamma_gamma<<7)/100 + 128;
	 vo_osd_changed(OSDTYPE_PROGBAR);
       }
#endif // USE_OSD
    } break;
    case MP_CMD_BRIGHTNESS :  {
      int v = cmd->args[0].v.i, abs = cmd->args[1].v.i;
      
      if (!sh_video)
	break;
      
      if (vo_gamma_brightness == 1000)
      {
	vo_gamma_brightness = 0;
	get_video_colors(sh_video, "brightness", &vo_gamma_brightness);
      }

      if (abs)
        vo_gamma_brightness = v;
      else
        vo_gamma_brightness += v;

      if (vo_gamma_brightness > 100)
        vo_gamma_brightness = 100;
      else if (vo_gamma_brightness < -100)
        vo_gamma_brightness = -100;
      if(set_video_colors(sh_video, "brightness", vo_gamma_brightness)){
#ifdef USE_OSD
       if(osd_level){
	 osd_visible=sh_video->fps; // 1 sec
	 vo_osd_progbar_type=OSD_BRIGHTNESS;
	 vo_osd_progbar_value=(vo_gamma_brightness<<7)/100 + 128;
	 vo_osd_changed(OSDTYPE_PROGBAR);
       }
#endif // USE_OSD
      }
    } break;
    case MP_CMD_CONTRAST :  {
      int v = cmd->args[0].v.i, abs = cmd->args[1].v.i;

      if (!sh_video)
	break;
      
      if (vo_gamma_contrast == 1000)
      {
	vo_gamma_contrast = 0;
	get_video_colors(sh_video, "contrast", &vo_gamma_contrast);
      }
     
      if (abs)
        vo_gamma_contrast = v;
      else
        vo_gamma_contrast += v;

      if (vo_gamma_contrast > 100)
        vo_gamma_contrast = 100;
      else if (vo_gamma_contrast < -100)
        vo_gamma_contrast = -100;
      if(set_video_colors(sh_video, "contrast", vo_gamma_contrast)){
#ifdef USE_OSD
       if(osd_level){
	 osd_visible=sh_video->fps; // 1 sec
	 vo_osd_progbar_type=OSD_CONTRAST;
	 vo_osd_progbar_value=(vo_gamma_contrast<<7)/100 + 128;
	 vo_osd_changed(OSDTYPE_PROGBAR);
       }
#endif // USE_OSD
      }
    } break;
    case MP_CMD_SATURATION :  {
      int v = cmd->args[0].v.i, abs = cmd->args[1].v.i;

      if (!sh_video)
	break;
      
      if (vo_gamma_saturation ==