本文整理汇总了Java中android.media.AudioFormat.CHANNEL_OUT_STEREO属性的典型用法代码示例。如果您正苦于以下问题:Java AudioFormat.CHANNEL_OUT_STEREO属性的具体用法?Java AudioFormat.CHANNEL_OUT_STEREO怎么用?Java AudioFormat.CHANNEL_OUT_STEREO使用的例子?那么, 这里精选的属性代码示例或许可以为您提供帮助。您也可以进一步了解该属性所在类android.media.AudioFormat
的用法示例。
在下文中一共展示了AudioFormat.CHANNEL_OUT_STEREO属性的15个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: initAudioTrack
private void initAudioTrack(int sampleRate, int channels) {
if (sampleRate <= 0) {
sampleRate = AUDIO_FORMAT_PCM8K;
}
if (channels <= 0) {
channels = 1;
}
if (channels == 1) {
mChannelConfig = AudioFormat.CHANNEL_OUT_MONO;
} else if (channels == 2) {
mChannelConfig = AudioFormat.CHANNEL_OUT_STEREO;
}
if (iCurrentQueueAudioFormat == sampleRate) {
if (mAudioTrack == null) {
mAudioTrack = createAudioTrack(iCurrentQueueAudioFormat);
}
} else {
Log.d(TAG, "Decoder-initAudioTrack-sampleRate=" + sampleRate);
Log.d(TAG, "Decoder-initAudioTrack-channels=" + channels);
mAudioTrack = createAudioTrack(sampleRate);
iCurrentQueueAudioFormat = sampleRate;
}
}
示例2: getMinBufferSize
private int getMinBufferSize(int sampleRate, int channelConfig, int audioFormat) {
minBufferSize = AudioTrack.getMinBufferSize(sampleRate, channelConfig, audioFormat);
// 解决异常IllegalArgumentException: Invalid audio buffer size
int channelCount = 1;
switch (channelConfig) {
// AudioFormat.CHANNEL_CONFIGURATION_DEFAULT
case AudioFormat.CHANNEL_OUT_DEFAULT:
case AudioFormat.CHANNEL_OUT_MONO:
case AudioFormat.CHANNEL_CONFIGURATION_MONO:
channelCount = 1;
break;
case AudioFormat.CHANNEL_OUT_STEREO:
case AudioFormat.CHANNEL_CONFIGURATION_STEREO:
channelCount = 2;
break;
default:
channelCount = Integer.bitCount(channelConfig);
}
// 判断minBufferSize是否在范围内,如果不在设定默认值为1152
int frameSizeInBytes = channelCount * (audioFormat == AudioFormat.ENCODING_PCM_8BIT ? 1 : 2);
if ((minBufferSize % frameSizeInBytes != 0) || (minBufferSize < 1)) {
minBufferSize = 1152;
}
return minBufferSize;
}
示例3: createAudioTrack
public AudioTrack createAudioTrack(int frameRate) {
int minBufferSizeBytes = AudioTrack.getMinBufferSize(frameRate,
AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_FLOAT);
Log.i(TAG, "AudioTrack.minBufferSize = " + minBufferSizeBytes
+ " bytes = " + (minBufferSizeBytes / BYTES_PER_FRAME)
+ " frames");
int bufferSize = 8 * minBufferSizeBytes / 8;
int outputBufferSizeFrames = bufferSize / BYTES_PER_FRAME;
Log.i(TAG, "actual bufferSize = " + bufferSize + " bytes = "
+ outputBufferSizeFrames + " frames");
AudioTrack player = new AudioTrack(AudioManager.STREAM_MUSIC,
mFrameRate, AudioFormat.CHANNEL_OUT_STEREO,
AudioFormat.ENCODING_PCM_FLOAT, bufferSize,
AudioTrack.MODE_STREAM);
Log.i(TAG, "created AudioTrack");
return player;
}
示例4: audioTrackInit
@SuppressLint("NewApi")
private int audioTrackInit(int sampleRateInHz, int channels) {
// this.sampleRateInHz=sampleRateInHz;
// this.channels=channels;
// return 0;
audioTrackRelease();
int channelConfig = channels >= 2 ? AudioFormat.CHANNEL_OUT_STEREO : AudioFormat.CHANNEL_OUT_MONO;
try {
mAudioTrackBufferSize = AudioTrack.getMinBufferSize(sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT);
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT, mAudioTrackBufferSize, AudioTrack.MODE_STREAM);
} catch (Exception e) {
mAudioTrackBufferSize = 0;
Log.e("audioTrackInit", e);
}
return mAudioTrackBufferSize;
}
示例5: generateTrack
public AudioTrack generateTrack(int sampleRate, short[] buf, int len) {
int end = len;
int c = 0;
if (RawSamples.CHANNEL_CONFIG == AudioFormat.CHANNEL_IN_MONO)
c = AudioFormat.CHANNEL_OUT_MONO;
if (RawSamples.CHANNEL_CONFIG == AudioFormat.CHANNEL_IN_STEREO)
c = AudioFormat.CHANNEL_OUT_STEREO;
// old phones bug.
// http://stackoverflow.com/questions/27602492
//
// with MODE_STATIC setNotificationMarkerPosition not called
AudioTrack track = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRate,
c, RawSamples.AUDIO_FORMAT,
len * (Short.SIZE / 8), AudioTrack.MODE_STREAM);
track.write(buf, 0, len);
if (track.setNotificationMarkerPosition(end) != AudioTrack.SUCCESS)
throw new RuntimeException("unable to set marker");
return track;
}
示例6: generateTone
static private AudioTrack generateTone(double freqHz, int durationMs) {
int count = (int) (44100.0 * 2.0 * (durationMs / 1000.0)) & ~1;
short[] samples = new short[count];
int size = count * (Short.SIZE / 8);
Log.d(TAG, freqHz + "Hz for " + durationMs + "ms = " + count + " samples at 44.1Khz 2ch = " + size + " bytes");
for (int i = 0; i < count; i += 2) {
short sample = (short) (Math.sin(2 * Math.PI * i / (44100.0 / freqHz)) * 0x7FFF * .75);
samples[i + 0] = sample;
samples[i + 1] = sample;
}
AudioTrack track = new AudioTrack(AudioManager.STREAM_MUSIC, 44100,
AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_16BIT,
size, AudioTrack.MODE_STATIC);
track.setNotificationMarkerPosition(count / 2);
track.write(samples, 0, count);
return track;
}
示例7: prepare
@Override
protected void prepare() throws IOException {
if (mState < STATE_PREPARED) {
MediaFormat format;
if (mState == STATE_UNINITIALIZED) {
mTrackIndex = selectTrack();
if (mTrackIndex < 0) {
setState(STATE_NO_TRACK_FOUND);
return;
}
mExtractor.selectTrack(mTrackIndex);
format = mExtractor.getTrackFormat(mTrackIndex);
mSampleRate = format.getInteger(MediaFormat.KEY_SAMPLE_RATE);
int audioChannels = format.getInteger(MediaFormat.KEY_CHANNEL_COUNT);
mAudioTrack = new AudioTrack(
AudioManager.STREAM_MUSIC,
mSampleRate,
(audioChannels == 1 ? AudioFormat.CHANNEL_OUT_MONO : AudioFormat.CHANNEL_OUT_STEREO),
AudioFormat.ENCODING_PCM_16BIT,
AudioTrack.getMinBufferSize(
mSampleRate,
(audioChannels == 1 ? AudioFormat.CHANNEL_OUT_MONO : AudioFormat.CHANNEL_OUT_STEREO),
AudioFormat.ENCODING_PCM_16BIT
),
AudioTrack.MODE_STREAM
);
mState = STATE_INITIALIZED;
} else {
format = mExtractor.getTrackFormat(mTrackIndex);
}
String mime = format.getString(MediaFormat.KEY_MIME);
Log.d(TAG, mime);
mMediaCodec = MediaCodec.createDecoderByType(mime);
// mMediaCodec.setCallback(mCallback);
mMediaCodec.configure(format, null, null, 0);
setState(STATE_PREPARED);
}
super.prepare();
}
示例8: audioDecoderTest
public void audioDecoderTest(String filePath) throws IOException {
AudioDecoder audioDecoderThread = new AudioDecoder(this, this);
audioDecoderThread.initExtractor(filePath);
audioDecoderThread.prepareAudio();
int buffsize = AudioTrack.getMinBufferSize(audioDecoderThread.getSampleRate(),
AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_16BIT);
audioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, audioDecoderThread.getSampleRate(),
AudioFormat.CHANNEL_OUT_STEREO, AudioFormat.ENCODING_PCM_16BIT, buffsize,
AudioTrack.MODE_STREAM);
audioTrack.play();
audioDecoderThread.start();
}
示例9: getMinOutputFrameSize
private static int getMinOutputFrameSize(int sampleRateInHz, int numChannels) {
final int bytesPerFrame = numChannels * (BITS_PER_SAMPLE / 8);
final int channelConfig =
(numChannels == 1 ? AudioFormat.CHANNEL_OUT_MONO : AudioFormat.CHANNEL_OUT_STEREO);
return AudioTrack.getMinBufferSize(
sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT)
/ bytesPerFrame;
}
示例10: createAudioTrack
private AudioTrack createAudioTrack(int sampleRate, int channelCount) {
int channelConfig = channelCount == 1 ? AudioFormat.CHANNEL_OUT_MONO : AudioFormat.CHANNEL_OUT_STEREO;
int bufferSize = ((sampleRate * 2) * channelCount / 100) * 8;//最多缓冲80毫秒的数据
return new AudioTrack(
AudioManager.STREAM_MUSIC,
sampleRate,
channelConfig,
AudioFormat.ENCODING_PCM_16BIT,
bufferSize,
AudioTrack.MODE_STREAM);
}
示例11: audioTrackInit
public int audioTrackInit() {
// Log.e(" ffff mediaplayer audiotrackinit start . sampleRateInHz:=" + sampleRateInHz + " channels:=" + channels );
audioTrackRelease();
int channelConfig = channels >= 2 ? AudioFormat.CHANNEL_OUT_STEREO : AudioFormat.CHANNEL_OUT_MONO;
try {
mAudioTrackBufferSize = AudioTrack.getMinBufferSize(sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT);
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT, mAudioTrackBufferSize, AudioTrack.MODE_STREAM);
} catch (Exception e) {
mAudioTrackBufferSize = 0;
Log.e("audioTrackInit", e);
}
return mAudioTrackBufferSize;
}
示例12: start
@Override
public void start() {
minBufferSize = AudioTrack.getMinBufferSize(frameRate,
AudioFormat.CHANNEL_OUT_STEREO,
AudioFormat.ENCODING_PCM_16BIT);
System.out.println("Audio minBufferSize = " + minBufferSize);
bufferSize = (3 * (minBufferSize / 2)) & ~3;
System.out.println("Audio bufferSize = " + bufferSize);
audioTrack = new AudioTrack(
AudioManager.STREAM_MUSIC, frameRate,
AudioFormat.CHANNEL_OUT_STEREO,
AudioFormat.ENCODING_PCM_16BIT, bufferSize,
AudioTrack.MODE_STREAM);
audioTrack.play();
}
示例13: audioTrackInit
private int audioTrackInit(int sampleRateInHz, int channels) {
audioTrackRelease();
int channelConfig = channels >= 2 ? AudioFormat.CHANNEL_OUT_STEREO : AudioFormat.CHANNEL_OUT_MONO;
try {
mAudioTrackBufferSize = AudioTrack.getMinBufferSize(sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT);
mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC, sampleRateInHz, channelConfig, AudioFormat.ENCODING_PCM_16BIT, mAudioTrackBufferSize, AudioTrack.MODE_STREAM);
} catch (Exception e) {
mAudioTrackBufferSize = 0;
Log.e("audioTrackInit", e);
}
return mAudioTrackBufferSize;
}
示例14: findFormatFromChannels
private int findFormatFromChannels(int numChannels) {
switch (numChannels) {
case 1:
return AudioFormat.CHANNEL_OUT_MONO;
case 2:
return AudioFormat.CHANNEL_OUT_STEREO;
default:
return -1; // Error
}
}
示例15: init
@Override
public void init(int streamType) {
int sampleRateInHz = 16000;
int channelConfig = AudioFormat.CHANNEL_OUT_STEREO;
int audioFormat = AudioFormat.ENCODING_PCM_16BIT;
int bufferSizeInBytes = AudioTrack.getMinBufferSize(sampleRateInHz, channelConfig, audioFormat);
int mode = AudioTrack.MODE_STREAM;
audioTrack = new AudioTrack(streamType, sampleRateInHz, channelConfig, audioFormat, bufferSizeInBytes, mode);
}