示例#1
0
static void *audio_decoder_loop (void *stream_gen) {

  buf_element_t   *buf = NULL;
  buf_element_t   *first_header = NULL;
  buf_element_t   *last_header = NULL;
  int              replaying_headers = 0;
  xine_stream_t   *stream = (xine_stream_t *) stream_gen;
  xine_ticket_t   *running_ticket = stream->xine->port_ticket;
  int              running = 1;
  int              prof_audio_decode = -1;
  uint32_t         buftype_unknown = 0;
  int              audio_channel_user = stream->audio_channel_user;

  if (prof_audio_decode == -1)
    prof_audio_decode = xine_profiler_allocate_slot ("audio decoder/output");

  while (running) {

    lprintf ("audio_loop: waiting for package...\n");

    if( !replaying_headers )
      buf = stream->audio_fifo->get (stream->audio_fifo);

    lprintf ("audio_loop: got package pts = %"PRId64", type = %08x\n", buf->pts, buf->type);

    _x_extra_info_merge( stream->audio_decoder_extra_info, buf->extra_info );
    stream->audio_decoder_extra_info->seek_count = stream->video_seek_count;

    switch (buf->type) {

    case BUF_CONTROL_HEADERS_DONE:
      pthread_mutex_lock (&stream->counter_lock);
      stream->header_count_audio++;
      pthread_cond_broadcast (&stream->counter_changed);
      pthread_mutex_unlock (&stream->counter_lock);
      break;

    case BUF_CONTROL_START:

      lprintf ("start\n");

      /* decoder dispose might call port functions */
      running_ticket->acquire(running_ticket, 0);

      if (stream->audio_decoder_plugin) {

	lprintf ("close old decoder\n");

	stream->keep_ao_driver_open = !!(buf->decoder_flags & BUF_FLAG_GAPLESS_SW);
	_x_free_audio_decoder (stream, stream->audio_decoder_plugin);
	stream->audio_decoder_plugin = NULL;
	stream->audio_track_map_entries = 0;
	stream->audio_type = 0;
	stream->keep_ao_driver_open = 0;
      }

      running_ticket->release(running_ticket, 0);

      if( !(buf->decoder_flags & BUF_FLAG_GAPLESS_SW) )
        stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_STREAMSTART, 0);

      buftype_unknown = 0;
      break;

    case BUF_CONTROL_END:

      /* free all held header buffers, see comments below */
      if( first_header ) {
        buf_element_t  *cur, *next;

        cur = first_header;
        while( cur ) {
          next = cur->next;
          cur->free_buffer (cur);
          cur = next;
        }
        first_header = last_header = NULL;
      }

      /*
       * wait the output fifos to run dry before sending the notification event
       * to the frontend. this test is only valid if there is only a single
       * stream attached to the current output port.
       */
      while(1) {
        int num_bufs, num_streams;

        running_ticket->acquire(running_ticket, 0);
        num_bufs = stream->audio_out->get_property(stream->audio_out, AO_PROP_BUFS_IN_FIFO);
        num_streams = stream->audio_out->get_property(stream->audio_out, AO_PROP_NUM_STREAMS);
        running_ticket->release(running_ticket, 0);

        if( num_bufs > 0 && num_streams == 1 && !stream->early_finish_event)
          xine_usec_sleep (10000);
        else
          break;
      }

      /* wait for video to reach this marker, if necessary */
      pthread_mutex_lock (&stream->counter_lock);

      stream->finished_count_audio++;

      lprintf ("reached end marker # %d\n", stream->finished_count_audio);

      pthread_cond_broadcast (&stream->counter_changed);

      if (stream->video_thread_created) {
        while (stream->finished_count_video < stream->finished_count_audio) {
          struct timeval tv;
          struct timespec ts;
          gettimeofday(&tv, NULL);
          ts.tv_sec  = tv.tv_sec + 1;
          ts.tv_nsec = tv.tv_usec * 1000;
          /* use timedwait to workaround buggy pthread broadcast implementations */
          pthread_cond_timedwait (&stream->counter_changed, &stream->counter_lock, &ts);
        }
      }
      pthread_mutex_unlock (&stream->counter_lock);
      stream->audio_channel_auto = -1;

      break;

    case BUF_CONTROL_QUIT:
      /* decoder dispose might call port functions */
      running_ticket->acquire(running_ticket, 0);

      if (stream->audio_decoder_plugin) {
	_x_free_audio_decoder (stream, stream->audio_decoder_plugin);
	stream->audio_decoder_plugin = NULL;
	stream->audio_track_map_entries = 0;
	stream->audio_type = 0;
      }

      running_ticket->release(running_ticket, 0);
      running = 0;
      break;

    case BUF_CONTROL_NOP:
      break;

    case BUF_CONTROL_RESET_DECODER:
      lprintf ("reset\n");

      _x_extra_info_reset( stream->audio_decoder_extra_info );
      if (stream->audio_decoder_plugin) {
	running_ticket->acquire(running_ticket, 0);
	stream->audio_decoder_plugin->reset (stream->audio_decoder_plugin);
	running_ticket->release(running_ticket, 0);
      }
      break;

    case BUF_CONTROL_DISCONTINUITY:
      if (stream->audio_decoder_plugin) {
	running_ticket->acquire(running_ticket, 0);
	stream->audio_decoder_plugin->discontinuity (stream->audio_decoder_plugin);
	running_ticket->release(running_ticket, 0);
      }

      stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_RELATIVE, buf->disc_off);
      break;

    case BUF_CONTROL_NEWPTS:
      if (stream->audio_decoder_plugin) {
	running_ticket->acquire(running_ticket, 0);
	stream->audio_decoder_plugin->discontinuity (stream->audio_decoder_plugin);
	running_ticket->release(running_ticket, 0);
      }

      if (buf->decoder_flags & BUF_FLAG_SEEK) {
        stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_STREAMSEEK, buf->disc_off);
      } else {
        stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_ABSOLUTE, buf->disc_off);
      }
      break;

    case BUF_CONTROL_AUDIO_CHANNEL:
      {
	xprintf(stream->xine, XINE_VERBOSITY_DEBUG,
		"audio_decoder: suggested switching to stream_id %02x\n", buf->decoder_info[0]);
	stream->audio_channel_auto = buf->decoder_info[0] & 0xff;
      }
      break;

    case BUF_CONTROL_RESET_TRACK_MAP:
      if (stream->audio_track_map_entries)
      {
        xine_event_t ui_event;

        stream->audio_track_map_entries = 0;

        ui_event.type        = XINE_EVENT_UI_CHANNELS_CHANGED;
        ui_event.data_length = 0;
        xine_event_send(stream, &ui_event);
      }
      break;


    default:

      if (_x_stream_info_get(stream, XINE_STREAM_INFO_IGNORE_AUDIO))
        break;

      xine_profiler_start_count (prof_audio_decode);

      running_ticket->acquire(running_ticket, 0);

      if ( (buf->type & 0xFF000000) == BUF_AUDIO_BASE ) {

	uint32_t audio_type = 0;
	int      i,j;
	uint32_t chan=buf->type&0x0000FFFF;

	/*
        printf("audio_decoder: buf_type=%08x auto=%08x user=%08x\n",
	       buf->type,
	       stream->audio_channel_auto,
	       audio_channel_user);
	       */

        /* update track map */

        i = 0;
        while ( (i<stream->audio_track_map_entries) && ((stream->audio_track_map[i]&0x0000FFFF)<chan) )
          i++;

        if ( (i==stream->audio_track_map_entries)
	     || ((stream->audio_track_map[i]&0x0000FFFF)!=chan) ) {
          xine_event_t  ui_event;

          j = stream->audio_track_map_entries;

          if (j >= 50)
            break;

          while (j>i) {
            stream->audio_track_map[j] = stream->audio_track_map[j-1];
            j--;
          }
          stream->audio_track_map[i] = buf->type;
          stream->audio_track_map_entries++;
          /* implicit channel change - reopen decoder below */
          if ((i == 0) && (audio_channel_user == -1) && (stream->audio_channel_auto < 0))
            stream->audio_decoder_streamtype = -1;

	  ui_event.type        = XINE_EVENT_UI_CHANNELS_CHANGED;
	  ui_event.data_length = 0;
	  xine_event_send (stream, &ui_event);
        }

	/* find out which audio type to decode */

	lprintf ("audio_channel_user = %d, map[0]=%08x\n",
		 audio_channel_user,
		 stream->audio_track_map[0]);

	if (audio_channel_user > -2) {

	  if (audio_channel_user == -1) {

	    /* auto */

	    lprintf ("audio_channel_auto = %d\n", stream->audio_channel_auto);

	    if (stream->audio_channel_auto>=0) {

	      if ((buf->type & 0xFF) == stream->audio_channel_auto) {
		audio_type = buf->type;
	      } else
		audio_type = -1;

	    } else
	      audio_type = stream->audio_track_map[0];

	  } else {
	    if (audio_channel_user <= stream->audio_track_map_entries)
	      audio_type = stream->audio_track_map[audio_channel_user];
	    else
	      audio_type = -1;
	  }

	  /* now, decode stream buffer if it's the right audio type */

	  if (buf->type == audio_type) {

	    int streamtype = (buf->type>>16) & 0xFF;

	    /* close old decoder of audio type has changed */

            if( buf->type != buftype_unknown &&
                (stream->audio_decoder_streamtype != streamtype ||
                !stream->audio_decoder_plugin) ) {

              if (stream->audio_decoder_plugin) {
                _x_free_audio_decoder (stream, stream->audio_decoder_plugin);
              }

              stream->audio_decoder_streamtype = streamtype;
              stream->audio_decoder_plugin = _x_get_audio_decoder (stream, streamtype);

              _x_stream_info_set(stream, XINE_STREAM_INFO_AUDIO_HANDLED,
				 (stream->audio_decoder_plugin != NULL));
            }

	    if (audio_type != stream->audio_type) {

	      if (stream->audio_decoder_plugin) {
		xine_event_t event;

		stream->audio_type = audio_type;

		event.type         = XINE_EVENT_UI_CHANNELS_CHANGED;
		event.data_length  = 0;
		xine_event_send(stream, &event);
	      }
	    }

	    /* finally - decode data */

	    if (stream->audio_decoder_plugin)
	      stream->audio_decoder_plugin->decode_data (stream->audio_decoder_plugin, buf);

	    if (buf->type != buftype_unknown &&
	        !_x_stream_info_get(stream, XINE_STREAM_INFO_AUDIO_HANDLED)) {
	      xine_log (stream->xine, XINE_LOG_MSG,
			_("audio_decoder: no plugin available to handle '%s'\n"), _x_buf_audio_name( buf->type ) );

              if( !_x_meta_info_get(stream, XINE_META_INFO_AUDIOCODEC) )
                _x_meta_info_set_utf8(stream, XINE_META_INFO_AUDIOCODEC, _x_buf_audio_name( buf->type ));

	      buftype_unknown = buf->type;

	      /* fatal error - dispose plugin */
	      if (stream->audio_decoder_plugin) {
	        _x_free_audio_decoder (stream, stream->audio_decoder_plugin);
	        stream->audio_decoder_plugin = NULL;
	      }
	    }
	  }
	}
      } else if( buf->type != buftype_unknown ) {
示例#2
0
static void *audio_decoder_loop (void *stream_gen) {

  buf_element_t   *buf;
  xine_stream_t   *stream = (xine_stream_t *) stream_gen;
  int              running = 1;
  int              prof_audio_decode = -1;
  uint32_t         buftype_unknown = 0;

  if (prof_audio_decode == -1)
    prof_audio_decode = xine_profiler_allocate_slot ("audio decoder/output");

  while (running) {

#ifdef LOG
    printf ("audio_loop: waiting for package...\n");  
#endif

    buf = stream->audio_fifo->get (stream->audio_fifo);

    
#ifdef LOG
    printf ("audio_loop: got package pts = %lld, type = %08x\n", 
	    buf->pts, buf->type); 
#endif    

    extra_info_merge( stream->audio_decoder_extra_info, buf->extra_info );
    stream->audio_decoder_extra_info->seek_count = stream->video_seek_count;
      
    /* check for a new port to use */
    if (stream->next_audio_port) {
      uint32_t bits, rate;
      int mode;
      
      /* noone is allowed to modify the next port from now on */
      pthread_mutex_lock(&stream->next_audio_port_lock);
      if (stream->audio_out->status(stream->audio_out, stream, &bits, &rate, &mode)) {
        /* register our stream at the new output port */
        stream->next_audio_port->open(stream->next_audio_port, stream, bits, rate, mode);
        stream->audio_out->close(stream->audio_out, stream);
      }
      stream->audio_out = stream->next_audio_port;
      stream->next_audio_port = NULL;
      pthread_mutex_unlock(&stream->next_audio_port_lock);
      pthread_cond_broadcast(&stream->next_audio_port_wired);
    }

    switch (buf->type) {
      
    case BUF_CONTROL_HEADERS_DONE:
      pthread_mutex_lock (&stream->counter_lock);
      stream->header_count_audio++;
      pthread_cond_broadcast (&stream->counter_changed);
      pthread_mutex_unlock (&stream->counter_lock);
      break;

    case BUF_CONTROL_START:

#ifdef LOG
      printf ("audio_decoder: start\n");
#endif

      if (stream->audio_decoder_plugin) {

#ifdef LOG
	printf ("audio_decoder: close old decoder\n");
#endif	

	free_audio_decoder (stream, stream->audio_decoder_plugin);
	stream->audio_decoder_plugin = NULL;
	stream->audio_track_map_entries = 0;
	stream->audio_type = 0;
      }
      
      stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_STREAMSTART, 0);
      
      buftype_unknown = 0;
      break;
      
    case BUF_CONTROL_END:

      /* wait for video to reach this marker, if necessary */
      
      pthread_mutex_lock (&stream->counter_lock);

      stream->finished_count_audio++;

#ifdef LOG
      printf ("audio_decoder: reached end marker # %d\n", 
	      stream->finished_count_audio);
#endif

      pthread_cond_broadcast (&stream->counter_changed);

      while (stream->finished_count_video < stream->finished_count_audio) {
        struct timeval tv;
        struct timespec ts;
        gettimeofday(&tv, NULL);
        ts.tv_sec  = tv.tv_sec + 1;
        ts.tv_nsec = tv.tv_usec * 1000;
        /* use timedwait to workaround buggy pthread broadcast implementations */
        pthread_cond_timedwait (&stream->counter_changed, &stream->counter_lock, &ts);
      }
          
      pthread_mutex_unlock (&stream->counter_lock);

      stream->audio_channel_auto = -1;

      break;
      
    case BUF_CONTROL_QUIT:
      if (stream->audio_decoder_plugin) {
	free_audio_decoder (stream, stream->audio_decoder_plugin);
	stream->audio_decoder_plugin = NULL;
	stream->audio_track_map_entries = 0;
	stream->audio_type = 0;
      }
      running = 0;
      break;

    case BUF_CONTROL_NOP:
      break;

    case BUF_CONTROL_RESET_DECODER:
#ifdef LOG
      printf ("audio_decoder: reset\n");
#endif
      extra_info_reset( stream->audio_decoder_extra_info );
      if (stream->audio_decoder_plugin)
        stream->audio_decoder_plugin->reset (stream->audio_decoder_plugin);
      break;
          
    case BUF_CONTROL_DISCONTINUITY:
      if (stream->audio_decoder_plugin)
        stream->audio_decoder_plugin->discontinuity (stream->audio_decoder_plugin);
      stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_RELATIVE, buf->disc_off);
      break;

    case BUF_CONTROL_NEWPTS:
      if (stream->audio_decoder_plugin)
        stream->audio_decoder_plugin->discontinuity (stream->audio_decoder_plugin);
      if (buf->decoder_flags && BUF_FLAG_SEEK) {
        stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_STREAMSEEK, buf->disc_off);
      } else {
        stream->metronom->handle_audio_discontinuity (stream->metronom, DISC_ABSOLUTE, buf->disc_off);
      }
      break;

    case BUF_CONTROL_AUDIO_CHANNEL:
      {
	if (stream->xine->verbosity >= XINE_VERBOSITY_DEBUG)
	  printf ("audio_decoder: suggested switching to stream_id %02x\n",
		  buf->decoder_info[0]);
	stream->audio_channel_auto = buf->decoder_info[0] & 0xff;
      }
      break;

    default:

      if (stream->stream_info[XINE_STREAM_INFO_IGNORE_AUDIO])
        break;

      xine_profiler_start_count (prof_audio_decode);

      if ( (buf->type & 0xFF000000) == BUF_AUDIO_BASE ) {
	
	uint32_t audio_type = 0;
	int      i,j;

	/*
        printf("audio_decoder: buf_type=%08x auto=%08x user=%08x\n",
	       buf->type, 
	       stream->audio_channel_auto,
	       stream->audio_channel_user);
	       */

        /* update track map */
        
        i = 0;
        while ( (i<stream->audio_track_map_entries) && (stream->audio_track_map[i]<buf->type) ) 
          i++;
        
        if ( (i==stream->audio_track_map_entries) 
	     || (stream->audio_track_map[i] != buf->type) ) {
          
          j = stream->audio_track_map_entries;

          if (j >= 50)
            break;

          while (j>i) {
            stream->audio_track_map[j] = stream->audio_track_map[j-1];
            j--;
          }
          stream->audio_track_map[i] = buf->type;
          stream->audio_track_map_entries++;
        }

	/* find out which audio type to decode */

#ifdef LOG
	printf ("audio_decoder: audio_channel_user = %d, map[0]=%08x\n",
		stream->audio_channel_user,
		stream->audio_track_map[0]);
#endif

	if (stream->audio_channel_user > -2) {

	  if (stream->audio_channel_user == -1) {

	    /* auto */

#ifdef LOG
	    printf ("audio_decoder: audio_channel_auto = %d\n",
		    stream->audio_channel_auto);
#endif

	    if (stream->audio_channel_auto>=0) {
 
	      if ((buf->type & 0xFF) == stream->audio_channel_auto) {
		audio_type = buf->type;
	      } else
		audio_type = -1;

	    } else
	      audio_type = stream->audio_track_map[0];

	  } else {
	    if (stream->audio_channel_user <= stream->audio_track_map_entries)
	      audio_type = stream->audio_track_map[stream->audio_channel_user];
	    else
	      audio_type = -1;
	  }

	  /* now, decode stream buffer if it's the right audio type */
	  
	  if (buf->type == audio_type) {
	    
	    int streamtype = (buf->type>>16) & 0xFF;

	    /* close old decoder of audio type has changed */
        
            if( buf->type != buftype_unknown && 
                (stream->audio_decoder_streamtype != streamtype ||
                !stream->audio_decoder_plugin) ) {
              
              if (stream->audio_decoder_plugin) {
                free_audio_decoder (stream, stream->audio_decoder_plugin);
              }
              
              stream->audio_decoder_streamtype = streamtype;
              stream->audio_decoder_plugin = get_audio_decoder (stream, streamtype);
              
              stream->stream_info[XINE_STREAM_INFO_AUDIO_HANDLED] = 
                (stream->audio_decoder_plugin != NULL);
            }
	    
	    if (audio_type != stream->audio_type) {
	      
	      if (stream->audio_decoder_plugin) {
		xine_event_t event;

		stream->audio_type = audio_type;

		event.type         = XINE_EVENT_UI_CHANNELS_CHANGED;
		event.data_length  = 0;
		xine_event_send(stream, &event);
	      }
	    }
	    
	    /* finally - decode data */
	    
	    if (stream->audio_decoder_plugin) 
	      stream->audio_decoder_plugin->decode_data (stream->audio_decoder_plugin, buf);
       
	    if (buf->type != buftype_unknown && 
	        !stream->stream_info[XINE_STREAM_INFO_AUDIO_HANDLED]) {
	      xine_log (stream->xine, XINE_LOG_MSG, 
			"audio_decoder: no plugin available to handle '%s'\n",
		        buf_audio_name( buf->type ) );
              
              if( !stream->meta_info[XINE_META_INFO_AUDIOCODEC] )
                stream->meta_info[XINE_META_INFO_AUDIOCODEC] 
                  = strdup (buf_audio_name( buf->type ));
                
	      buftype_unknown = buf->type;

	      /* fatal error - dispose plugin */       
	      if (stream->audio_decoder_plugin) {
	        free_audio_decoder (stream, stream->audio_decoder_plugin);
	        stream->audio_decoder_plugin = NULL;
	      }
	    }
	  }
	} 
      } else if( buf->type != buftype_unknown ) {