Examples with AudioProcessor com.google.android.exoplayer2.audio.AudioProcessor used on opensource projects

Example 1 with AudioProcessor

use of com.google.android.exoplayer2.audio.AudioProcessor in project ExoPlayer by google.

the class SimpleExoPlayer method buildAudioRenderers.

/**
   * Builds audio renderers for use by the player.
   *
   * @param context The {@link Context} associated with the player.
   * @param mainHandler A handler associated with the main thread's looper.
   * @param drmSessionManager An optional {@link DrmSessionManager}. May be null if the player will
   *     not be used for DRM protected playbacks.
   * @param extensionRendererMode The extension renderer mode.
   * @param eventListener An event listener.
   * @param audioProcessors An array of {@link AudioProcessor}s that will process PCM audio buffers
   *     before output. May be empty.
   * @param out An array to which the built renderers should be appended.
   */
protected void buildAudioRenderers(Context context, Handler mainHandler, DrmSessionManager<FrameworkMediaCrypto> drmSessionManager, @ExtensionRendererMode int extensionRendererMode, AudioRendererEventListener eventListener, AudioProcessor[] audioProcessors, ArrayList<Renderer> out) {
    out.add(new MediaCodecAudioRenderer(MediaCodecSelector.DEFAULT, drmSessionManager, true, mainHandler, eventListener, AudioCapabilities.getCapabilities(context), audioProcessors));
    if (extensionRendererMode == EXTENSION_RENDERER_MODE_OFF) {
        return;
    }
    int extensionRendererIndex = out.size();
    if (extensionRendererMode == EXTENSION_RENDERER_MODE_PREFER) {
        extensionRendererIndex--;
    }
    try {
        Class<?> clazz = Class.forName("com.google.android.exoplayer2.ext.opus.LibopusAudioRenderer");
        Constructor<?> constructor = clazz.getConstructor(Handler.class, AudioRendererEventListener.class, AudioProcessor[].class);
        Renderer renderer = (Renderer) constructor.newInstance(mainHandler, componentListener, audioProcessors);
        out.add(extensionRendererIndex++, renderer);
        Log.i(TAG, "Loaded LibopusAudioRenderer.");
    } catch (ClassNotFoundException e) {
    // Expected if the app was built without the extension.
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    try {
        Class<?> clazz = Class.forName("com.google.android.exoplayer2.ext.flac.LibflacAudioRenderer");
        Constructor<?> constructor = clazz.getConstructor(Handler.class, AudioRendererEventListener.class, AudioProcessor[].class);
        Renderer renderer = (Renderer) constructor.newInstance(mainHandler, componentListener, audioProcessors);
        out.add(extensionRendererIndex++, renderer);
        Log.i(TAG, "Loaded LibflacAudioRenderer.");
    } catch (ClassNotFoundException e) {
    // Expected if the app was built without the extension.
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
    try {
        Class<?> clazz = Class.forName("com.google.android.exoplayer2.ext.ffmpeg.FfmpegAudioRenderer");
        Constructor<?> constructor = clazz.getConstructor(Handler.class, AudioRendererEventListener.class, AudioProcessor[].class);
        Renderer renderer = (Renderer) constructor.newInstance(mainHandler, componentListener, audioProcessors);
        out.add(extensionRendererIndex++, renderer);
        Log.i(TAG, "Loaded FfmpegAudioRenderer.");
    } catch (ClassNotFoundException e) {
    // Expected if the app was built without the extension.
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

Example 2 with AudioProcessor

use of com.google.android.exoplayer2.audio.AudioProcessor in project ExoPlayer by google.

the class DefaultAudioSink method configure.

@Override
public void configure(Format inputFormat, int specifiedBufferSize, @Nullable int[] outputChannels) throws ConfigurationException {
    int inputPcmFrameSize;
    @Nullable AudioProcessor[] availableAudioProcessors;
    @OutputMode int outputMode;
    @C.Encoding int outputEncoding;
    int outputSampleRate;
    int outputChannelConfig;
    int outputPcmFrameSize;
    if (MimeTypes.AUDIO_RAW.equals(inputFormat.sampleMimeType)) {
        Assertions.checkArgument(Util.isEncodingLinearPcm(inputFormat.pcmEncoding));
        inputPcmFrameSize = Util.getPcmFrameSize(inputFormat.pcmEncoding, inputFormat.channelCount);
        availableAudioProcessors = shouldUseFloatOutput(inputFormat.pcmEncoding) ? toFloatPcmAvailableAudioProcessors : toIntPcmAvailableAudioProcessors;
        trimmingAudioProcessor.setTrimFrameCount(inputFormat.encoderDelay, inputFormat.encoderPadding);
        if (Util.SDK_INT < 21 && inputFormat.channelCount == 8 && outputChannels == null) {
            // AudioTrack doesn't support 8 channel output before Android L. Discard the last two (side)
            // channels to give a 6 channel stream that is supported.
            outputChannels = new int[6];
            for (int i = 0; i < outputChannels.length; i++) {
                outputChannels[i] = i;
            }
        }
        channelMappingAudioProcessor.setChannelMap(outputChannels);
        AudioProcessor.AudioFormat outputFormat = new AudioProcessor.AudioFormat(inputFormat.sampleRate, inputFormat.channelCount, inputFormat.pcmEncoding);
        for (AudioProcessor audioProcessor : availableAudioProcessors) {
            try {
                AudioProcessor.AudioFormat nextFormat = audioProcessor.configure(outputFormat);
                if (audioProcessor.isActive()) {
                    outputFormat = nextFormat;
                }
            } catch (UnhandledAudioFormatException e) {
                throw new ConfigurationException(e, inputFormat);
            }
        }
        outputMode = OUTPUT_MODE_PCM;
        outputEncoding = outputFormat.encoding;
        outputSampleRate = outputFormat.sampleRate;
        outputChannelConfig = Util.getAudioTrackChannelConfig(outputFormat.channelCount);
        outputPcmFrameSize = Util.getPcmFrameSize(outputEncoding, outputFormat.channelCount);
    } else {
        inputPcmFrameSize = C.LENGTH_UNSET;
        availableAudioProcessors = new AudioProcessor[0];
        outputSampleRate = inputFormat.sampleRate;
        outputPcmFrameSize = C.LENGTH_UNSET;
        if (useOffloadedPlayback(inputFormat, audioAttributes)) {
            outputMode = OUTPUT_MODE_OFFLOAD;
            outputEncoding = MimeTypes.getEncoding(checkNotNull(inputFormat.sampleMimeType), inputFormat.codecs);
            outputChannelConfig = Util.getAudioTrackChannelConfig(inputFormat.channelCount);
        } else {
            outputMode = OUTPUT_MODE_PASSTHROUGH;
            @Nullable Pair<Integer, Integer> encodingAndChannelConfig = getEncodingAndChannelConfigForPassthrough(inputFormat, audioCapabilities);
            if (encodingAndChannelConfig == null) {
                throw new ConfigurationException("Unable to configure passthrough for: " + inputFormat, inputFormat);
            }
            outputEncoding = encodingAndChannelConfig.first;
            outputChannelConfig = encodingAndChannelConfig.second;
        }
    }
    int bufferSize = specifiedBufferSize != 0 ? specifiedBufferSize : audioTrackBufferSizeProvider.getBufferSizeInBytes(getAudioTrackMinBufferSize(outputSampleRate, outputChannelConfig, outputEncoding), outputEncoding, outputMode, outputPcmFrameSize, outputSampleRate, enableAudioTrackPlaybackParams ? MAX_PLAYBACK_SPEED : DEFAULT_PLAYBACK_SPEED);
    if (outputEncoding == C.ENCODING_INVALID) {
        throw new ConfigurationException("Invalid output encoding (mode=" + outputMode + ") for: " + inputFormat, inputFormat);
    }
    if (outputChannelConfig == AudioFormat.CHANNEL_INVALID) {
        throw new ConfigurationException("Invalid output channel config (mode=" + outputMode + ") for: " + inputFormat, inputFormat);
    }
    offloadDisabledUntilNextConfiguration = false;
    Configuration pendingConfiguration = new Configuration(inputFormat, inputPcmFrameSize, outputMode, outputPcmFrameSize, outputSampleRate, outputChannelConfig, outputEncoding, bufferSize, availableAudioProcessors);
    if (isAudioTrackInitialized()) {
        this.pendingConfiguration = pendingConfiguration;
    } else {
        configuration = pendingConfiguration;
    }
}