Java C.Encoding方法代码示例

import com.google.android.exoplayer2.C; //导入方法依赖的package包/类
@Override
public boolean configure(int sampleRateHz, int channelCount, @C.Encoding int encoding)
    throws UnhandledFormatException {
  if (encoding != C.ENCODING_PCM_8BIT && encoding != C.ENCODING_PCM_16BIT
      && encoding != C.ENCODING_PCM_24BIT && encoding != C.ENCODING_PCM_32BIT) {
    throw new UnhandledFormatException(sampleRateHz, channelCount, encoding);
  }
  if (this.sampleRateHz == sampleRateHz && this.channelCount == channelCount
      && this.encoding == encoding) {
    return false;
  }
  this.sampleRateHz = sampleRateHz;
  this.channelCount = channelCount;
  this.encoding = encoding;
  if (encoding == C.ENCODING_PCM_16BIT) {
    buffer = EMPTY_BUFFER;
  }
  return true;
}
 

import com.google.android.exoplayer2.C; //导入方法依赖的package包/类
@C.Encoding
private static int getEncodingForMimeType(String mimeType) {
  switch (mimeType) {
    case MimeTypes.AUDIO_AC3:
      return C.ENCODING_AC3;
    case MimeTypes.AUDIO_E_AC3:
      return C.ENCODING_E_AC3;
    case MimeTypes.AUDIO_DTS:
      return C.ENCODING_DTS;
    case MimeTypes.AUDIO_DTS_HD:
      return C.ENCODING_DTS_HD;
    default:
      return C.ENCODING_INVALID;
  }
}
 

import com.google.android.exoplayer2.C; //导入方法依赖的package包/类
private static int getFramesPerEncodedSample(@C.Encoding int encoding, ByteBuffer buffer) {
  if (encoding == C.ENCODING_DTS || encoding == C.ENCODING_DTS_HD) {
    return DtsUtil.parseDtsAudioSampleCount(buffer);
  } else if (encoding == C.ENCODING_AC3) {
    return Ac3Util.getAc3SyncframeAudioSampleCount();
  } else if (encoding == C.ENCODING_E_AC3) {
    return Ac3Util.parseEAc3SyncframeAudioSampleCount(buffer);
  } else {
    throw new IllegalStateException("Unexpected audio encoding: " + encoding);
  }
}
 

import com.google.android.exoplayer2.C; //导入方法依赖的package包/类
public UnhandledFormatException(int sampleRateHz, int channelCount, @C.Encoding int encoding) {
  super("Unhandled format: " + sampleRateHz + " Hz, " + channelCount + " channels in encoding "
      + encoding);
}
 

import com.google.android.exoplayer2.C; //导入方法依赖的package包/类
/**
 * Configures the processor to process input audio with the specified format. After calling this
 * method, {@link #isActive()} returns whether the processor needs to handle buffers; if not, the
 * processor will not accept any buffers until it is reconfigured. Returns {@code true} if the
 * processor must be flushed, or if the value returned by {@link #isActive()} has changed as a
 * result of the call. If it's active, {@link #getOutputChannelCount()} and
 * {@link #getOutputEncoding()} return the processor's output format.
 *
 * @param sampleRateHz The sample rate of input audio in Hz.
 * @param channelCount The number of interleaved channels in input audio.
 * @param encoding The encoding of input audio.
 * @return {@code true} if the processor must be flushed or the value returned by
 *     {@link #isActive()} has changed as a result of the call.
 * @throws UnhandledFormatException Thrown if the specified format can't be handled as input.
 */
boolean configure(int sampleRateHz, int channelCount, @C.Encoding int encoding)
    throws UnhandledFormatException;
 

import com.google.android.exoplayer2.C; //导入方法依赖的package包/类
/**
 * Returns the audio encoding used in the data output by the processor.
 */
@C.Encoding
int getOutputEncoding();