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

Example 6 with AudioRecord

use of android.media.AudioRecord in project android_frameworks_base by AOSPA.

the class AudioPolicy method createAudioRecordSink.

/**
     * Create an {@link AudioRecord} instance that is associated with the given {@link AudioMix}.
     * Audio buffers recorded through the created instance will contain the mix of the audio
     * streams that fed the given mixer.
     * @param mix a non-null {@link AudioMix} instance whose routing flags was defined with
     *     {@link AudioMix#ROUTE_FLAG_LOOP_BACK}, previously added to this policy.
     * @return a new {@link AudioRecord} instance whose data format is the one defined in the
     *     {@link AudioMix}, or null if this policy was not successfully registered
     *     with {@link AudioManager#registerAudioPolicy(AudioPolicy)}.
     * @throws IllegalArgumentException
     */
@SystemApi
public AudioRecord createAudioRecordSink(AudioMix mix) throws IllegalArgumentException {
    if (!policyReadyToUse()) {
        Log.e(TAG, "Cannot create AudioRecord sink for AudioMix");
        return null;
    }
    checkMixReadyToUse(mix, false);
    // create an AudioFormat from the mix format compatible with recording, as the mix
    // was defined for playback
    AudioFormat mixFormat = new AudioFormat.Builder(mix.getFormat()).setChannelMask(AudioFormat.inChannelMaskFromOutChannelMask(mix.getFormat().getChannelMask())).build();
    // create the AudioRecord, configured for loop back, using the same format as the mix
    AudioRecord ar = new AudioRecord(new AudioAttributes.Builder().setInternalCapturePreset(MediaRecorder.AudioSource.REMOTE_SUBMIX).addTag(addressForTag(mix)).build(), mixFormat, AudioRecord.getMinBufferSize(mix.getFormat().getSampleRate(), // using stereo for buffer size to avoid the current poor support for masks
    AudioFormat.CHANNEL_IN_STEREO, mix.getFormat().getEncoding()), AudioManager.AUDIO_SESSION_ID_GENERATE);
    return ar;
}

Example 7 with AudioRecord

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

the class AudioPolicy method createAudioRecordSink.

/**
     * Create an {@link AudioRecord} instance that is associated with the given {@link AudioMix}.
     * Audio buffers recorded through the created instance will contain the mix of the audio
     * streams that fed the given mixer.
     * @param mix a non-null {@link AudioMix} instance whose routing flags was defined with
     *     {@link AudioMix#ROUTE_FLAG_LOOP_BACK}, previously added to this policy.
     * @return a new {@link AudioRecord} instance whose data format is the one defined in the
     *     {@link AudioMix}, or null if this policy was not successfully registered
     *     with {@link AudioManager#registerAudioPolicy(AudioPolicy)}.
     * @throws IllegalArgumentException
     */
@SystemApi
public AudioRecord createAudioRecordSink(AudioMix mix) throws IllegalArgumentException {
    if (!policyReadyToUse()) {
        Log.e(TAG, "Cannot create AudioRecord sink for AudioMix");
        return null;
    }
    checkMixReadyToUse(mix, false);
    // create an AudioFormat from the mix format compatible with recording, as the mix
    // was defined for playback
    AudioFormat mixFormat = new AudioFormat.Builder(mix.getFormat()).setChannelMask(AudioFormat.inChannelMaskFromOutChannelMask(mix.getFormat().getChannelMask())).build();
    // create the AudioRecord, configured for loop back, using the same format as the mix
    AudioRecord ar = new AudioRecord(new AudioAttributes.Builder().setInternalCapturePreset(MediaRecorder.AudioSource.REMOTE_SUBMIX).addTag(addressForTag(mix)).build(), mixFormat, AudioRecord.getMinBufferSize(mix.getFormat().getSampleRate(), // using stereo for buffer size to avoid the current poor support for masks
    AudioFormat.CHANNEL_IN_STEREO, mix.getFormat().getEncoding()), AudioManager.AUDIO_SESSION_ID_GENERATE);
    return ar;
}

Example 8 with AudioRecord

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

the class MediaAudioEffectTest method test1_0ConstructorFromType.

//Test case 1.0: test constructor from effect type and get effect ID
@LargeTest
public void test1_0ConstructorFromType() throws Exception {
    boolean result = true;
    String msg = "test1_0ConstructorFromType()";
    AudioEffect.Descriptor[] desc = AudioEffect.queryEffects();
    assertTrue(msg + ": no effects found", (desc.length != 0));
    try {
        int sessionId;
        AudioRecord ar = null;
        if (AudioEffect.EFFECT_PRE_PROCESSING.equals(desc[0].connectMode)) {
            ar = getAudioRecord();
            sessionId = ar.getAudioSessionId();
        } else {
            sessionId = 0;
        }
        AudioEffect effect = new AudioEffect(desc[0].type, AudioEffect.EFFECT_TYPE_NULL, 0, sessionId);
        assertNotNull(msg + ": could not create AudioEffect", effect);
        try {
            assertTrue(msg + ": invalid effect ID", (effect.getId() != 0));
        } catch (IllegalStateException e) {
            msg = msg.concat(": AudioEffect not initialized");
            result = false;
        } finally {
            effect.release();
            if (ar != null) {
                ar.release();
            }
        }
    } catch (IllegalArgumentException e) {
        msg = msg.concat(": Effect not found: " + desc[0].name);
        result = false;
    } catch (UnsupportedOperationException e) {
        msg = msg.concat(": Effect library not loaded");
        result = false;
    }
    assertTrue(msg, result);
}

Example 9 with AudioRecord

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

the class MediaAudioEffectTest method test1_1ConstructorFromUuid.

//Test case 1.1: test constructor from effect uuid
@LargeTest
public void test1_1ConstructorFromUuid() throws Exception {
    boolean result = true;
    String msg = "test1_1ConstructorFromUuid()";
    AudioEffect.Descriptor[] desc = AudioEffect.queryEffects();
    assertTrue(msg + "no effects found", (desc.length != 0));
    try {
        int sessionId;
        AudioRecord ar = null;
        if (AudioEffect.EFFECT_PRE_PROCESSING.equals(desc[0].connectMode)) {
            ar = getAudioRecord();
            sessionId = ar.getAudioSessionId();
        } else {
            sessionId = 0;
        }
        AudioEffect effect = new AudioEffect(AudioEffect.EFFECT_TYPE_NULL, desc[0].uuid, 0, sessionId);
        assertNotNull(msg + ": could not create AudioEffect", effect);
        effect.release();
        if (ar != null) {
            ar.release();
        }
    } catch (IllegalArgumentException e) {
        msg = msg.concat(": Effect not found: " + desc[0].name);
        result = false;
    } catch (UnsupportedOperationException e) {
        msg = msg.concat(": Effect library not loaded");
        result = false;
    }
    assertTrue(msg, result);
}

Example 10 with AudioRecord

use of android.media.AudioRecord in project android_frameworks_base by crdroidandroid.

the class AudioPolicy method createAudioRecordSink.

/**
     * Create an {@link AudioRecord} instance that is associated with the given {@link AudioMix}.
     * Audio buffers recorded through the created instance will contain the mix of the audio
     * streams that fed the given mixer.
     * @param mix a non-null {@link AudioMix} instance whose routing flags was defined with
     *     {@link AudioMix#ROUTE_FLAG_LOOP_BACK}, previously added to this policy.
     * @return a new {@link AudioRecord} instance whose data format is the one defined in the
     *     {@link AudioMix}, or null if this policy was not successfully registered
     *     with {@link AudioManager#registerAudioPolicy(AudioPolicy)}.
     * @throws IllegalArgumentException
     */
@SystemApi
public AudioRecord createAudioRecordSink(AudioMix mix) throws IllegalArgumentException {
    if (!policyReadyToUse()) {
        Log.e(TAG, "Cannot create AudioRecord sink for AudioMix");
        return null;
    }
    checkMixReadyToUse(mix, false);
    // create an AudioFormat from the mix format compatible with recording, as the mix
    // was defined for playback
    AudioFormat mixFormat = new AudioFormat.Builder(mix.getFormat()).setChannelMask(AudioFormat.inChannelMaskFromOutChannelMask(mix.getFormat().getChannelMask())).build();
    // create the AudioRecord, configured for loop back, using the same format as the mix
    AudioRecord ar = new AudioRecord(new AudioAttributes.Builder().setInternalCapturePreset(MediaRecorder.AudioSource.REMOTE_SUBMIX).addTag(addressForTag(mix)).build(), mixFormat, AudioRecord.getMinBufferSize(mix.getFormat().getSampleRate(), // using stereo for buffer size to avoid the current poor support for masks
    AudioFormat.CHANNEL_IN_STEREO, mix.getFormat().getEncoding()), AudioManager.AUDIO_SESSION_ID_GENERATE);
    return ar;
}