C++ (Cpp) getPcmAmplitudeFormat Examples

Example #1

File: pcm_windows.c Project: junwuwei/brltty

PcmAmplitudeFormat
setPcmAmplitudeFormat (PcmDevice *pcm, PcmAmplitudeFormat format) {
  WAVEFORMATEX newFormat = pcm->format;
  if (format == PCM_FMT_U8) newFormat.wBitsPerSample = 8;
  else if (format == PCM_FMT_S16L) newFormat.wBitsPerSample = 16;
  else return getPcmAmplitudeFormat(pcm);
  if (!updateWaveOutFormat(pcm, &newFormat, "setting PCM amplitude format"))
    return getPcmAmplitudeFormat(pcm);
  else
    return format;
}

Example #2

File: notes_pcm.c Project: BaJIeK/brltty

static NoteDevice *
pcmConstruct (int errorLevel) {
  NoteDevice *device;

  if ((device = malloc(sizeof(*device)))) {
    if ((device->pcm = openPcmDevice(errorLevel, opt_pcmDevice))) {
      device->blockSize = getPcmBlockSize(device->pcm);
      device->sampleRate = getPcmSampleRate(device->pcm);
      device->channelCount = getPcmChannelCount(device->pcm);
      device->amplitudeFormat = getPcmAmplitudeFormat(device->pcm);
      device->blockUsed = 0;

      if ((device->blockAddress = malloc(device->blockSize))) {
        logMessage(LOG_DEBUG, "PCM enabled: blk=%d rate=%d chan=%d fmt=%d",
                   device->blockSize, device->sampleRate, device->channelCount, device->amplitudeFormat);
        return device;
      } else {
        logMallocError();
      }

      closePcmDevice(device->pcm);
    }

    free(device);
  } else {
    logMallocError();
  }

  logMessage(LOG_DEBUG, "PCM not available");
  return NULL;
}

Example #3

File: pcm_qsa.c Project: BaJIeK/brltty

PcmAmplitudeFormat
setPcmAmplitudeFormat (PcmDevice *pcm, PcmAmplitudeFormat format) {
    const AmplitudeFormatEntry *entry = amplitudeFormatTable;
    while (entry->internal != PCM_FMT_UNKNOWN) {
        if (entry->internal == format) {
            pcm->parameters.format.format = format;
            reconfigurePcmChannel(pcm, LOG_WARNING);
            break;
        }
        ++entry;
    }
    return getPcmAmplitudeFormat(pcm);
}

Example #4

File: pcm_alsa.c Project: junwuwei/brltty

PcmAmplitudeFormat
setPcmAmplitudeFormat (PcmDevice *pcm, PcmAmplitudeFormat format) {
  const AmplitudeFormatEntry *entry = amplitudeFormatTable;
  int result;

  while (entry->internal != PCM_FMT_UNKNOWN) {
    if (entry->internal == format) break;
    ++entry;
  }

  if ((result = pcmAlsa_pcm_hw_params_set_format(pcm->handle, pcm->hardwareParameters, entry->external)) < 0) {
    logPcmError(LOG_ERR, "set format", result);
    return getPcmAmplitudeFormat(pcm);
  }

  return entry->internal;
}

Example #5

File: pcm_hpux.c Project: junwuwei/brltty

PcmAmplitudeFormat
setPcmAmplitudeFormat (PcmDevice *pcm, PcmAmplitudeFormat format) {
  return getPcmAmplitudeFormat(pcm);
}