Examples with AudioRecord android.media.AudioRecord used on opensource projects

Example 16 with AudioRecord

use of android.media.AudioRecord in project libstreaming by fyhertz.

the class AACStream method encodeWithMediaCodec.

@Override
@SuppressLint({ "InlinedApi", "NewApi" })
protected void encodeWithMediaCodec() throws IOException {
    final int bufferSize = AudioRecord.getMinBufferSize(mQuality.samplingRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT) * 2;
    ((AACLATMPacketizer) mPacketizer).setSamplingRate(mQuality.samplingRate);
    mAudioRecord = new AudioRecord(MediaRecorder.AudioSource.MIC, mQuality.samplingRate, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_16BIT, bufferSize);
    mMediaCodec = MediaCodec.createEncoderByType("audio/mp4a-latm");
    MediaFormat format = new MediaFormat();
    format.setString(MediaFormat.KEY_MIME, "audio/mp4a-latm");
    format.setInteger(MediaFormat.KEY_BIT_RATE, mQuality.bitRate);
    format.setInteger(MediaFormat.KEY_CHANNEL_COUNT, 1);
    format.setInteger(MediaFormat.KEY_SAMPLE_RATE, mQuality.samplingRate);
    format.setInteger(MediaFormat.KEY_AAC_PROFILE, MediaCodecInfo.CodecProfileLevel.AACObjectLC);
    format.setInteger(MediaFormat.KEY_MAX_INPUT_SIZE, bufferSize);
    mMediaCodec.configure(format, null, null, MediaCodec.CONFIGURE_FLAG_ENCODE);
    mAudioRecord.startRecording();
    mMediaCodec.start();
    final MediaCodecInputStream inputStream = new MediaCodecInputStream(mMediaCodec);
    final ByteBuffer[] inputBuffers = mMediaCodec.getInputBuffers();
    mThread = new Thread(new Runnable() {

        @Override
        public void run() {
            int len = 0, bufferIndex = 0;
            try {
                while (!Thread.interrupted()) {
                    bufferIndex = mMediaCodec.dequeueInputBuffer(10000);
                    if (bufferIndex >= 0) {
                        inputBuffers[bufferIndex].clear();
                        len = mAudioRecord.read(inputBuffers[bufferIndex], bufferSize);
                        if (len == AudioRecord.ERROR_INVALID_OPERATION || len == AudioRecord.ERROR_BAD_VALUE) {
                            Log.e(TAG, "An error occured with the AudioRecord API !");
                        } else {
                            // Log.v(TAG,"Pushing raw audio to the decoder: len="+len+" bs: "+inputBuffers[bufferIndex].capacity());
                            mMediaCodec.queueInputBuffer(bufferIndex, 0, len, System.nanoTime() / 1000, 0);
                        }
                    }
                }
            } catch (RuntimeException e) {
                e.printStackTrace();
            }
        }
    });
    mThread.start();
    // The packetizer encapsulates this stream in an RTP stream and send it over the network
    mPacketizer.setInputStream(inputStream);
    mPacketizer.start();
    mStreaming = true;
}

Example 17 with AudioRecord

use of android.media.AudioRecord in project robolectric by robolectric.

the class ShadowAudioRecordTest method setSource_instanceCreatedBeforeSetSourceIsCalled.

@Test
public void setSource_instanceCreatedBeforeSetSourceIsCalled() {
    AudioRecord audioRecord = createAudioRecord();
    audioRecord.startRecording();
    byte[] audioRecordInput = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
    ShadowAudioRecord.setSource(createAudioRecordSource(audioRecordInput));
    byte[] audioRecordData = new byte[100];
    int audioRecordBytesRead = audioRecord.read(audioRecordData, 0, 100);
    audioRecord.stop();
    audioRecord.release();
    assertThat(audioRecordBytesRead).isEqualTo(audioRecordInput.length);
    assertThat(Arrays.copyOf(audioRecordData, audioRecordInput.length)).isEqualTo(audioRecordInput);
}

Example 18 with AudioRecord

use of android.media.AudioRecord in project robolectric by robolectric.

the class ShadowAudioRecordTest method nativeReadByteCallsAudioRecordSourceWhenSetBlockingMOnwards.

@Test
@Config(minSdk = M)
public void nativeReadByteCallsAudioRecordSourceWhenSetBlockingMOnwards() {
    AudioRecordSource source = Mockito.mock(AudioRecordSource.class);
    ShadowAudioRecord.setSource(source);
    AudioRecord audioRecord = createAudioRecord();
    audioRecord.startRecording();
    audioRecord.read(new byte[100], 0, 100, AudioRecord.READ_BLOCKING);
    verify(source).readInByteArray(any(byte[].class), eq(0), eq(100), /* isBlocking=*/
    eq(true));
    verifyNoMoreInteractions(source);
}

Example 19 with AudioRecord

use of android.media.AudioRecord in project robolectric by robolectric.

the class ShadowAudioRecordTest method nativeReadFloatCallsAudioRecordSourceWhenSetNonBlocking.

@Test
@Config(minSdk = M)
public void nativeReadFloatCallsAudioRecordSourceWhenSetNonBlocking() {
    AudioRecordSource source = Mockito.mock(AudioRecordSource.class);
    ShadowAudioRecord.setSource(source);
    AudioRecord audioRecord = new AudioRecord(AudioSource.MIC, 16000, AudioFormat.CHANNEL_IN_MONO, AudioFormat.ENCODING_PCM_FLOAT, 1024);
    audioRecord.startRecording();
    audioRecord.read(new float[100], 0, 100, AudioRecord.READ_NON_BLOCKING);
    verify(source).readInFloatArray(any(float[].class), eq(0), eq(100), /* isBlocking=*/
    eq(false));
    verifyNoMoreInteractions(source);
}

Example 20 with AudioRecord

use of android.media.AudioRecord in project robolectric by robolectric.

the class ShadowAudioRecordTest method nativeReadByteBufferCallsAudioRecordSourceWhenSetBlockingMOnwards.

@Test
@Config(minSdk = M)
public void nativeReadByteBufferCallsAudioRecordSourceWhenSetBlockingMOnwards() {
    AudioRecordSource source = Mockito.mock(AudioRecordSource.class);
    ShadowAudioRecord.setSource(source);
    AudioRecord audioRecord = createAudioRecord();
    audioRecord.startRecording();
    audioRecord.read(ByteBuffer.allocate(100), 100, AudioRecord.READ_BLOCKING);
    verify(source).readInDirectBuffer(any(ByteBuffer.class), eq(100), /* isBlocking=*/
    eq(true));
    verifyNoMoreInteractions(source);
}