Exemplos de L3_set_config_mpeg_defaults em C++ (Cpp)

Exemplo n.º 1

Arquivo: main.c Projeto: mtgrosser/shine

/* Use these default settings, can be overridden */
static void set_defaults(shine_config_t *config)
{
	L3_set_config_mpeg_defaults(&config->mpeg);
}

Exemplo n.º 2

Arquivo: mp3stream.cpp Projeto: OpenQCam/qcam

MP3Stream::MP3Stream(StreamsManager *pStreamsManager, string name)
: BaseAudioStream(pStreamsManager, ST_IN_AUDIO_MP3, name)
{
  BaseAudioDevice *pAudioCapDevice= reinterpret_cast<BaseAudioDevice*> (HardwareManager::GetHardwareInstance(HT_MIC));
  _pMP3streamCapabilities= new StreamCapabilities();

  //pcmbuf = new uint8_t (PCM_PAGE_SIZE);
  //mp3 config
  L3_set_config_mpeg_defaults(&_mp3config.mpeg);
  //wave config
  _sampleRate = pAudioCapDevice->GetSampleRate();
  _numOfChannel = pAudioCapDevice->GetNumberOfChannels();
  _bitsPerSample = pAudioCapDevice->GetBitsPerSample();
  _bitRate = _mp3config.mpeg.bitr;//

  //set wave type, TODO: removed
  _mp3config.wave.type = WAVE_RIFF_PCM;
  _mp3config.wave.channels = _numOfChannel; //mono
  _mp3config.wave.samplerate = _sampleRate;
  _mp3config.wave.bits = _bitsPerSample;

  //config sample rate index, and bit rate
  _mp3config.mpeg.samplerate_index = L3_find_samplerate_index(_sampleRate, _mp3config.mpeg.type);
  if ( _mp3config.mpeg.samplerate_index < 0)
    FATAL ("invalid sample rate in mp3stream ctor"); //TODO: should throw an execption

  _mp3config.mpeg.bitrate_index = L3_find_bitrate_index(_mp3config.mpeg.bitr, _mp3config.mpeg.type);
  if (_mp3config.mpeg.bitrate_index < 0)
    FATAL ("invliad bit rate in mpstream ctor");


  open_bit_stream_w(&_bs, BITSSIZE);
  memset ((char*) &_side_info, 0, sizeof(L3_side_info_t));
  L3_subband_initialise();
  L3_mdct_initialise();
  L3_loop_initialise();
  _mp3config.mpeg.mode_gr = (_mp3config.mpeg.type==1)? 2: 1;
  _samplesInput = _mp3config.mpeg.samples_per_frame = (_mp3config.mpeg.type==1)? 1152:576;
  //config->mpeg.total_frames = ();
  _mp3config.mpeg.bits_per_slot = 8;
  _sideinfo_len = 32;

  if (_mp3config.mpeg.type==1) {
    if (_numOfChannel==1)
      _sideinfo_len += 136;
    else
      _sideinfo_len += 256;
  }
  else {  //mpeg2
    if (_numOfChannel==1)
      _sideinfo_len += 72;
    else
      _sideinfo_len += 136;
  }

  if (_mp3config.mpeg.crc) _sideinfo_len += 16;

  _avg_slots_per_frame   = ((double)_samplesInput /
                           ((double)_sampleRate/1000)) *
                          ((double)_bitRate /
                           (double)_mp3config.mpeg.bits_per_slot);

  _whole_slots_per_frame = (int)_avg_slots_per_frame;
  _frac_slots_per_frame = _avg_slots_per_frame - (double)_whole_slots_per_frame;
  _slot_lag = -_frac_slots_per_frame;

  if (_frac_slots_per_frame==0)
    _mp3config.mpeg.padding = 0;

  DEBUG ("mp3 stream info: _sideinfo_len:%d sampleInput:%d bitRate:%d sampleRate:%d avg slots per frame:%d",
    _sideinfo_len,
    _samplesInput,
    _bitRate,
    _sampleRate,
    _avg_slots_per_frame);


  GETTIMESTAMP(ats);
  mp3Duration=(1000.0/(double)_sampleRate)*(double)(_samplesInput/_numOfChannel); //m second
  _pMP3streamCapabilities->aac.InitAACCapability(_sampleRate, _numOfChannel, _bitsPerSample, (samplesInput/_numOfChannel),
                                                 (_bitRate* 1000 *_numOfChannel), mp3Duration);  //bitrate: 2 channel
  _pMP3streamCapabilities->audioCodecId = CODEC_AUDIO_MP3;

#ifdef MP3STREAM_DEBUG
  if((pfOutputMP3=fopen("MICOut.mp3", "wb")) == NULL){
    FATAL("Open output file 'MICOut.mp3' fail... !!\n");
    exit(1);
  }
  if((pfPCM=fopen("MICOut.wav", "wb")) == NULL){
    FATAL("Open output file 'MICOut.mp3' fail... !!\n");
    exit(1);
  }
  DEBUG("Initial MP3Stream End..!!\n");
#endif


}