C++ (Cpp) sa_stream_get_min_write Exemples

Exemple #1

Fichier : sydney_audio_alsa.c Projet : hadicoffee/jb412gecko

int
sa_stream_drain(sa_stream_t *s)
{
  if (s == NULL || s->output_unit == NULL) {
    return SA_ERROR_NO_INIT;
  }

  if (snd_pcm_state(s->output_unit) == SND_PCM_STATE_PREPARED) {
    size_t min_samples = 0;
    size_t min_bytes = 0;
    void *buf;

    if (sa_stream_get_min_write(s, &min_samples) < 0)
      return SA_ERROR_SYSTEM;
    min_bytes = snd_pcm_frames_to_bytes(s->output_unit, min_samples);    

    buf = malloc(min_bytes);
    if (!buf)
      return SA_ERROR_SYSTEM;
    memset(buf, 0, min_bytes);
    sa_stream_write(s, buf, min_bytes);
    free(buf);
  }

  if (snd_pcm_state(s->output_unit) != SND_PCM_STATE_RUNNING) {
    return SA_ERROR_INVALID;
  }
  snd_pcm_drain(s->output_unit);
  return SA_SUCCESS;
}

Exemple #2

Fichier : AudioStream.cpp Projet : PinZhang/releases-mozilla-central

int32_t nsNativeAudioStream::GetMinWriteSize()
{
  size_t size;
  int r = sa_stream_get_min_write(static_cast<sa_stream_t*>(mAudioHandle),
                                  &size);
  if (r == SA_ERROR_NOT_SUPPORTED)
    return 1;
  else if (r != SA_SUCCESS || size > INT32_MAX)
    return -1;

  return static_cast<int32_t>(size / mChannels / sizeof(short));
}