本文整理匯總了Java中android.media.AudioFormat.CHANNEL_OUT_7POINT1屬性的典型用法代碼示例。如果您正苦於以下問題：Java AudioFormat.CHANNEL_OUT_7POINT1屬性的具體用法？Java AudioFormat.CHANNEL_OUT_7POINT1怎麽用？Java AudioFormat.CHANNEL_OUT_7POINT1使用的例子？那麽, 這裏精選的屬性代碼示例或許可以為您提供幫助。您也可以進一步了解該屬性所在類android.media.AudioFormat的用法示例。
在下文中一共展示了AudioFormat.CHANNEL_OUT_7POINT1屬性的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: reconfigure
/**
* Reconfigures the audio track to play back media in {@code format}.
*
* @param format Specifies the channel count and sample rate to play back.
* @param specifiedBufferSize A specific size for the playback buffer in bytes, or 0 to use a
* size inferred from the format.
*/
public void reconfigure(MediaFormat format, int specifiedBufferSize) {
int channelCount = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
int channelConfig;
switch (channelCount) {
case 1:
channelConfig = AudioFormat.CHANNEL_OUT_MONO;
break;
case 2:
channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
break;
case 6:
channelConfig = AudioFormat.CHANNEL_OUT_5POINT1;
break;
case 8:
channelConfig = AudioFormat.CHANNEL_OUT_7POINT1;
break;
default:
throw new IllegalArgumentException("Unsupported channel count: " + channelCount);
}
int sampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
String mimeType = format.getString(MediaFormat.KEY_MIME);
// TODO: Does channelConfig determine channelCount?
int encoding = MimeTypes.getEncodingForMimeType(mimeType);
boolean isAc3 = encoding == C.ENCODING_AC3 || encoding == C.ENCODING_E_AC3;
if (isInitialized() && this.sampleRate == sampleRate && this.channelConfig == channelConfig
&& !this.isAc3 && !isAc3) {
// We already have an existing audio track with the correct sample rate and channel config.
return;
}
reset();
this.encoding = encoding;
this.sampleRate = sampleRate;
this.channelConfig = channelConfig;
this.isAc3 = isAc3;
ac3Bitrate = UNKNOWN_AC3_BITRATE; // Calculated on receiving the first buffer if isAc3 is true.
frameSize = 2 * channelCount; // 2 bytes per 16 bit sample * number of channels.
minBufferSize = android.media.AudioTrack.getMinBufferSize(sampleRate, channelConfig, encoding);
Assertions.checkState(minBufferSize != android.media.AudioTrack.ERROR_BAD_VALUE);
if (specifiedBufferSize != 0) {
bufferSize = specifiedBufferSize;
} else {
int multipliedBufferSize = minBufferSize * BUFFER_MULTIPLICATION_FACTOR;
int minAppBufferSize = (int) durationUsToFrames(MIN_BUFFER_DURATION_US) * frameSize;
int maxAppBufferSize = (int) Math.max(minBufferSize,
durationUsToFrames(MAX_BUFFER_DURATION_US) * frameSize);
bufferSize = multipliedBufferSize < minAppBufferSize
? minAppBufferSize
: multipliedBufferSize > maxAppBufferSize
? maxAppBufferSize
: multipliedBufferSize;
}
}