MediaCodecAudioRenderer (ExoPlayer library)

java.lang.Object
- com.google.android.exoplayer2.BaseRenderer
- - com.google.android.exoplayer2.mediacodec.MediaCodecRenderer
  - - com.google.android.exoplayer2.audio.MediaCodecAudioRenderer

All Implemented Interfaces:

PlayerMessage.Target, Renderer, RendererCapabilities, MediaClock
```
public class MediaCodecAudioRenderer
extends MediaCodecRenderer
implements MediaClock
```
Decodes and renders audio using MediaCodec and an AudioSink.
This renderer accepts the following messages sent via ExoPlayer.createMessage(Target) on the playback thread:
- Message with type Renderer.MSG_SET_VOLUME to set the volume. The message payload should be a Float with 0 being silence and 1 being unity gain.
- Message with type Renderer.MSG_SET_AUDIO_ATTRIBUTES to set the audio attributes. The message payload should be an AudioAttributes instance that will configure the underlying audio track.
- Message with type Renderer.MSG_SET_AUX_EFFECT_INFO to set the auxiliary effect. The message payload should be an AuxEffectInfo instance that will configure the underlying audio track.
- Message with type Renderer.MSG_SET_SKIP_SILENCE_ENABLED to enable or disable skipping silences. The message payload should be a Boolean.
- Message with type Renderer.MSG_SET_AUDIO_SESSION_ID to set the audio session ID. The message payload should be a session ID Integer that will be attached to the underlying audio track.

Nested Class Summary
- Nested classes/interfaces inherited from class com.google.android.exoplayer2.mediacodec.MediaCodecRenderer
  MediaCodecRenderer.DecoderInitializationException, MediaCodecRenderer.KeepCodecResult, MediaCodecRenderer.MediaCodecOperationMode
- Nested classes/interfaces inherited from interface com.google.android.exoplayer2.Renderer
  Renderer.State, Renderer.VideoScalingMode, Renderer.WakeupListener
- Nested classes/interfaces inherited from interface com.google.android.exoplayer2.RendererCapabilities
  RendererCapabilities.AdaptiveSupport, RendererCapabilities.Capabilities, RendererCapabilities.FormatSupport, RendererCapabilities.TunnelingSupport

Field Summary
- Fields inherited from class com.google.android.exoplayer2.mediacodec.MediaCodecRenderer
  CODEC_OPERATING_RATE_UNSET, decoderCounters, KEEP_CODEC_RESULT_NO, KEEP_CODEC_RESULT_YES_WITH_FLUSH, KEEP_CODEC_RESULT_YES_WITH_RECONFIGURATION, KEEP_CODEC_RESULT_YES_WITHOUT_RECONFIGURATION, OPERATION_MODE_ASYNCHRONOUS_DEDICATED_THREAD, OPERATION_MODE_ASYNCHRONOUS_DEDICATED_THREAD_ASYNCHRONOUS_QUEUEING, OPERATION_MODE_SYNCHRONOUS
- Fields inherited from interface com.google.android.exoplayer2.Renderer
  MSG_CUSTOM_BASE, MSG_SET_AUDIO_ATTRIBUTES, MSG_SET_AUDIO_SESSION_ID, MSG_SET_AUX_EFFECT_INFO, MSG_SET_CAMERA_MOTION_LISTENER, MSG_SET_SCALING_MODE, MSG_SET_SKIP_SILENCE_ENABLED, MSG_SET_SURFACE, MSG_SET_VIDEO_DECODER_OUTPUT_BUFFER_RENDERER, MSG_SET_VIDEO_FRAME_METADATA_LISTENER, MSG_SET_VOLUME, MSG_SET_WAKEUP_LISTENER, STATE_DISABLED, STATE_ENABLED, STATE_STARTED, VIDEO_SCALING_MODE_DEFAULT, VIDEO_SCALING_MODE_SCALE_TO_FIT, VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING
- Fields inherited from interface com.google.android.exoplayer2.RendererCapabilities
  ADAPTIVE_NOT_SEAMLESS, ADAPTIVE_NOT_SUPPORTED, ADAPTIVE_SEAMLESS, ADAPTIVE_SUPPORT_MASK, FORMAT_EXCEEDS_CAPABILITIES, FORMAT_HANDLED, FORMAT_SUPPORT_MASK, FORMAT_UNSUPPORTED_DRM, FORMAT_UNSUPPORTED_SUBTYPE, FORMAT_UNSUPPORTED_TYPE, TUNNELING_NOT_SUPPORTED, TUNNELING_SUPPORT_MASK, TUNNELING_SUPPORTED

Constructor Summary

Constructors
Constructor	Description
`MediaCodecAudioRenderer(Context context, MediaCodecSelector mediaCodecSelector)`
`MediaCodecAudioRenderer(Context context, MediaCodecSelector mediaCodecSelector, boolean enableDecoderFallback, Handler eventHandler, AudioRendererEventListener eventListener, AudioSink audioSink)`
`MediaCodecAudioRenderer(Context context, MediaCodecSelector mediaCodecSelector, Handler eventHandler, AudioRendererEventListener eventListener)`
`MediaCodecAudioRenderer(Context context, MediaCodecSelector mediaCodecSelector, Handler eventHandler, AudioRendererEventListener eventListener, AudioCapabilities audioCapabilities, AudioProcessor... audioProcessors)`
`MediaCodecAudioRenderer(Context context, MediaCodecSelector mediaCodecSelector, Handler eventHandler, AudioRendererEventListener eventListener, AudioSink audioSink)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected int`	`canKeepCodec(MediaCodec codec, MediaCodecInfo codecInfo, Format oldFormat, Format newFormat)`	Determines whether the existing `MediaCodec` can be kept for a new `Format`, and if it can whether it requires reconfiguration.
`protected boolean`	`canKeepCodecWithFlush(Format oldFormat, Format newFormat)`	Returns whether the codec can be flushed and reused when switching to a new format.
`protected void`	`configureCodec(MediaCodecInfo codecInfo, MediaCodecAdapter codecAdapter, Format format, MediaCrypto crypto, float codecOperatingRate)`	Configures a newly created `MediaCodec`.
`void`	`experimentalSetEnableKeepAudioTrackOnSeek(boolean enableKeepAudioTrackOnSeek)`	Sets whether to enable the experimental feature that keeps and flushes the `AudioTrack` when a seek occurs, as opposed to releasing and reinitialising.
`protected int`	`getCodecMaxInputSize(MediaCodecInfo codecInfo, Format format, Format[] streamFormats)`	Returns a maximum input size suitable for configuring a codec for `format` in a way that will allow possible adaptation to other compatible formats in `streamFormats`.
`protected float`	`getCodecOperatingRateV23(float operatingRate, Format format, Format[] streamFormats)`	Returns the `MediaFormat.KEY_OPERATING_RATE` value for a given renderer operating rate, current `Format` and set of possible stream formats.
`protected List<MediaCodecInfo>`	`getDecoderInfos(MediaCodecSelector mediaCodecSelector, Format format, boolean requiresSecureDecoder)`	Returns a list of decoders that can decode media in the specified format, in priority order.
`MediaClock`	`getMediaClock()`	If the renderer advances its own playback position then this method returns a corresponding `MediaClock`.
`protected MediaFormat`	`getMediaFormat(Format format, String codecMimeType, int codecMaxInputSize, float codecOperatingRate)`	Returns the framework `MediaFormat` that can be used to configure a `MediaCodec` for decoding the given `Format` for playback.
`String`	`getName()`	Returns the name of this renderer, for logging and debugging purposes.
`PlaybackParameters`	`getPlaybackParameters()`	Returns the active playback parameters.
`long`	`getPositionUs()`	Returns the current media position in microseconds.
`void`	`handleMessage(int messageType, Object message)`	Handles a message delivered to the target.
`boolean`	`isEnded()`	Whether the renderer is ready for the `ExoPlayer` instance to transition to `Player.STATE_ENDED`.
`boolean`	`isReady()`	Whether the renderer is able to immediately render media from the current position.
`protected void`	`onAudioSessionId(int audioSessionId)`	Called when the audio session id becomes known.
`protected void`	`onCodecInitialized(String name, long initializedTimestampMs, long initializationDurationMs)`	Called when a `MediaCodec` has been created and configured.
`protected void`	`onDisabled()`	Called when the renderer is disabled.
`protected void`	`onEnabled(boolean joining, boolean mayRenderStartOfStream)`	Called when the renderer is enabled.
`protected void`	`onInputFormatChanged(FormatHolder formatHolder)`	Called when a new `Format` is read from the upstream `MediaPeriod`.
`protected void`	`onOutputFormatChanged(Format format, MediaFormat mediaFormat)`	Called when one of the output formats changes.
`protected void`	`onPositionDiscontinuity()`	See `AudioSink.Listener.onPositionDiscontinuity()`.
`protected void`	`onPositionReset(long positionUs, boolean joining)`	Called when the position is reset.
`protected void`	`onProcessedStreamChange()`	Called after the last output buffer before a stream change has been processed.
`protected void`	`onQueueInputBuffer(DecoderInputBuffer buffer)`	Called immediately before an input buffer is queued into the codec.
`protected void`	`onReset()`	Called when the renderer is reset.
`protected void`	`onStarted()`	Called when the renderer is started.
`protected void`	`onStopped()`	Called when the renderer is stopped.
`protected boolean`	`processOutputBuffer(long positionUs, long elapsedRealtimeUs, MediaCodec codec, ByteBuffer buffer, int bufferIndex, int bufferFlags, int sampleCount, long bufferPresentationTimeUs, boolean isDecodeOnlyBuffer, boolean isLastBuffer, Format format)`	Processes an output media buffer.
`protected void`	`renderToEndOfStream()`	Incrementally renders any remaining output.
`void`	`setPlaybackParameters(PlaybackParameters playbackParameters)`	Attempts to set the playback parameters.
`protected boolean`	`shouldUseBypass(Format format)`	Returns whether buffers in the input format can be processed without a codec.
`protected int`	`supportsFormat(MediaCodecSelector mediaCodecSelector, Format format)`	Returns the `RendererCapabilities.Capabilities` for the given `Format`.

Methods inherited from class com.google.android.exoplayer2.BaseRenderer
createRendererException, disable, enable, getCapabilities, getConfiguration, getFormatHolder, getIndex, getLastResetPositionUs, getReadingPositionUs, getState, getStream, getStreamFormats, getTrackType, hasReadStreamToEnd, isCurrentStreamFinal, isSourceReady, maybeThrowStreamError, readSource, replaceStream, reset, resetPosition, setCurrentStreamFinal, setIndex, skipSource, start, stop

Methods inherited from class com.google.android.exoplayer2.mediacodec.MediaCodecRenderer
createDecoderException, experimentalSetMediaCodecOperationMode, flushOrReinitializeCodec, flushOrReleaseCodec, getCodec, getCodecInfo, getCodecNeedsEosPropagation, getCodecOperatingRate, getCodecOutputMediaFormat, getInputFormat, getLargestQueuedPresentationTimeUs, getOperatingRate, getOutputFormat, getOutputStreamOffsetUs, getOutputStreamStartPositionUs, handleInputBufferSupplementalData, legacyKeepAvailableCodecInfosWithoutCodec, maybeInitCodecOrBypass, onProcessedOutputBuffer, onStreamChanged, releaseCodec, render, resetCodecStateForFlush, resetCodecStateForRelease, setOperatingRate, setPendingOutputEndOfStream, setPendingPlaybackException, setRenderTimeLimitMs, shouldInitCodec, supportsFormat, supportsFormatDrm, supportsMixedMimeTypeAdaptation, updateOutputFormatForTime

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.android.exoplayer2.RendererCapabilities

- Constructor Detail
  - MediaCodecAudioRenderer
```
public MediaCodecAudioRenderer(Context context,
                               MediaCodecSelector mediaCodecSelector)
```
    Parameters:
    
    context - A context.
    
    mediaCodecSelector - A decoder selector.
  - MediaCodecAudioRenderer
```
public MediaCodecAudioRenderer(Context context,
                               MediaCodecSelector mediaCodecSelector,
                               @Nullable
                               Handler eventHandler,
                               @Nullable
                               AudioRendererEventListener eventListener)
```
    Parameters:
    
    context - A context.
    
    mediaCodecSelector - A decoder selector.
    
    eventHandler - A handler to use when delivering events to eventListener. May be null if delivery of events is not required.
    
    eventListener - A listener of events. May be null if delivery of events is not required.
  - MediaCodecAudioRenderer
```
public MediaCodecAudioRenderer(Context context,
                               MediaCodecSelector mediaCodecSelector,
                               @Nullable
                               Handler eventHandler,
                               @Nullable
                               AudioRendererEventListener eventListener,
                               @Nullable
                               AudioCapabilities audioCapabilities,
                               AudioProcessor... audioProcessors)
```
    Parameters:
    
    context - A context.
    
    mediaCodecSelector - A decoder selector.
    
    eventHandler - A handler to use when delivering events to eventListener. May be null if delivery of events is not required.
    
    eventListener - A listener of events. May be null if delivery of events is not required.
    
    audioCapabilities - The audio capabilities for playback on this device. May be null if the default capabilities (no encoded audio passthrough support) should be assumed.
    
    audioProcessors - Optional AudioProcessors that will process PCM audio before output.
  - MediaCodecAudioRenderer
```
public MediaCodecAudioRenderer(Context context,
                               MediaCodecSelector mediaCodecSelector,
                               @Nullable
                               Handler eventHandler,
                               @Nullable
                               AudioRendererEventListener eventListener,
                               AudioSink audioSink)
```
    Parameters:
    
    context - A context.
    
    mediaCodecSelector - A decoder selector.
    
    eventHandler - A handler to use when delivering events to eventListener. May be null if delivery of events is not required.
    
    eventListener - A listener of events. May be null if delivery of events is not required.
    
    audioSink - The sink to which audio will be output.
  - MediaCodecAudioRenderer
```
public MediaCodecAudioRenderer(Context context,
                               MediaCodecSelector mediaCodecSelector,
                               boolean enableDecoderFallback,
                               @Nullable
                               Handler eventHandler,
                               @Nullable
                               AudioRendererEventListener eventListener,
                               AudioSink audioSink)
```
    Parameters:
    
    context - A context.
    
    mediaCodecSelector - A decoder selector.
    
    enableDecoderFallback - Whether to enable fallback to lower-priority decoders if decoder initialization fails. This may result in using a decoder that is slower/less efficient than the primary decoder.
    
    eventHandler - A handler to use when delivering events to eventListener. May be null if delivery of events is not required.
    
    eventListener - A listener of events. May be null if delivery of events is not required.
    
    audioSink - The sink to which audio will be output.
- Method Detail
  - getName
```
public String getName()
```
    Description copied from interface: Renderer
    
    Returns the name of this renderer, for logging and debugging purposes. Should typically be the renderer's (un-obfuscated) class name.
    
    Specified by:
    
    getName in interface Renderer
    
    Specified by:
    
    getName in interface RendererCapabilities
    
    Returns:
    
    The name of this renderer.
  - experimentalSetEnableKeepAudioTrackOnSeek
```
public void experimentalSetEnableKeepAudioTrackOnSeek(boolean enableKeepAudioTrackOnSeek)
```
    Sets whether to enable the experimental feature that keeps and flushes the AudioTrack when a seek occurs, as opposed to releasing and reinitialising. Off by default.
    This method is experimental, and will be renamed or removed in a future release.
    
    Parameters:
    
    enableKeepAudioTrackOnSeek - Whether to keep the AudioTrack on seek.
  - supportsFormat
```
@Capabilities
protected int supportsFormat(MediaCodecSelector mediaCodecSelector,
                             Format format)
                      throws MediaCodecUtil.DecoderQueryException
```
    Description copied from class: MediaCodecRenderer
    
    Returns the RendererCapabilities.Capabilities for the given Format.
    
    Specified by:
    
    supportsFormat in class MediaCodecRenderer
    
    Parameters:
    
    mediaCodecSelector - The decoder selector.
    
    format - The Format.
    
    Returns:
    
    The RendererCapabilities.Capabilities for this Format.
    
    Throws:
    
    MediaCodecUtil.DecoderQueryException - If there was an error querying decoders.
  - getDecoderInfos
```
protected List<MediaCodecInfo> getDecoderInfos(MediaCodecSelector mediaCodecSelector,
                                               Format format,
                                               boolean requiresSecureDecoder)
                                        throws MediaCodecUtil.DecoderQueryException
```
    Description copied from class: MediaCodecRenderer
    
    Returns a list of decoders that can decode media in the specified format, in priority order.
    
    Specified by:
    
    getDecoderInfos in class MediaCodecRenderer
    
    Parameters:
    
    mediaCodecSelector - The decoder selector.
    
    format - The Format for which a decoder is required.
    
    requiresSecureDecoder - Whether a secure decoder is required.
    
    Returns:
    
    A list of MediaCodecInfos corresponding to decoders. May be empty.
    
    Throws:
    
    MediaCodecUtil.DecoderQueryException - Thrown if there was an error querying decoders.
  - shouldUseBypass
```
protected boolean shouldUseBypass(Format format)
```
    Description copied from class: MediaCodecRenderer
    
    Returns whether buffers in the input format can be processed without a codec.
    This method is only called if the content is not DRM protected, because if the content is DRM protected use of bypass is never possible.
    
    Overrides:
    
    shouldUseBypass in class MediaCodecRenderer
    
    Parameters:
    
    format - The input Format.
    
    Returns:
    
    Whether playback bypassing MediaCodec is supported.
  - configureCodec
```
protected void configureCodec(MediaCodecInfo codecInfo,
                              MediaCodecAdapter codecAdapter,
                              Format format,
                              @Nullable
                              MediaCrypto crypto,
                              float codecOperatingRate)
```
    Description copied from class: MediaCodecRenderer
    
    Configures a newly created MediaCodec.
    
    Specified by:
    
    configureCodec in class MediaCodecRenderer
    
    Parameters:
    
    codecInfo - Information about the MediaCodec being configured.
    
    codecAdapter - The MediaCodecAdapter to configure.
    
    format - The Format for which the codec is being configured.
    
    crypto - For drm protected playbacks, a MediaCrypto to use for decryption.
    
    codecOperatingRate - The codec operating rate, or MediaCodecRenderer.CODEC_OPERATING_RATE_UNSET if no codec operating rate should be set.
  - canKeepCodec
```
@KeepCodecResult
protected int canKeepCodec(MediaCodec codec,
                           MediaCodecInfo codecInfo,
                           Format oldFormat,
                           Format newFormat)
```
    Description copied from class: MediaCodecRenderer
    
    Determines whether the existing MediaCodec can be kept for a new Format, and if it can whether it requires reconfiguration.
    The default implementation returns MediaCodecRenderer.KEEP_CODEC_RESULT_NO.
    
    Overrides:
    
    canKeepCodec in class MediaCodecRenderer
    
    Parameters:
    
    codec - The existing MediaCodec instance.
    
    codecInfo - A MediaCodecInfo describing the decoder.
    
    oldFormat - The Format for which the existing instance is configured.
    
    newFormat - The new Format.
    
    Returns:
    
    Whether the instance can be kept, and if it can whether it requires reconfiguration.
  - canKeepCodecWithFlush
```
protected boolean canKeepCodecWithFlush(Format oldFormat,
                                        Format newFormat)
```
    Returns whether the codec can be flushed and reused when switching to a new format. Reuse is generally possible when the codec would be configured in an identical way after the format change (excluding MediaFormat.KEY_MAX_INPUT_SIZE and configuration that does not come from the Format).
    
    Parameters:
    
    oldFormat - The first format.
    
    newFormat - The second format.
    
    Returns:
    
    Whether the codec can be flushed and reused when switching to a new format.
  - getMediaClock
```
@Nullable
public MediaClock getMediaClock()
```
    Description copied from interface: Renderer
    
    If the renderer advances its own playback position then this method returns a corresponding MediaClock. If provided, the player will use the returned MediaClock as its source of time during playback. A player may have at most one renderer that returns a MediaClock from this method.
    
    Specified by:
    
    getMediaClock in interface Renderer
    
    Overrides:
    
    getMediaClock in class BaseRenderer
    
    Returns:
    
    The MediaClock tracking the playback position of the renderer, or null.
  - getCodecOperatingRateV23
```
protected float getCodecOperatingRateV23(float operatingRate,
                                         Format format,
                                         Format[] streamFormats)
```
    Description copied from class: MediaCodecRenderer
    
    Returns the MediaFormat.KEY_OPERATING_RATE value for a given renderer operating rate, current Format and set of possible stream formats.
    The default implementation returns MediaCodecRenderer.CODEC_OPERATING_RATE_UNSET.
    
    Overrides:
    
    getCodecOperatingRateV23 in class MediaCodecRenderer
    
    Parameters:
    
    operatingRate - The renderer operating rate.
    
    format - The Format for which the codec is being configured.
    
    streamFormats - The possible stream formats.
    
    Returns:
    
    The codec operating rate, or MediaCodecRenderer.CODEC_OPERATING_RATE_UNSET if no codec operating rate should be set.
  - onCodecInitialized
```
protected void onCodecInitialized(String name,
                                  long initializedTimestampMs,
                                  long initializationDurationMs)
```
    Description copied from class: MediaCodecRenderer
    
    Called when a MediaCodec has been created and configured.
    The default implementation is a no-op.
    
    Overrides:
    
    onCodecInitialized in class MediaCodecRenderer
    
    Parameters:
    
    name - The name of the codec that was initialized.
    
    initializedTimestampMs - SystemClock.elapsedRealtime() when initialization finished.
    
    initializationDurationMs - The time taken to initialize the codec in milliseconds.
  - onInputFormatChanged
```
protected void onInputFormatChanged(FormatHolder formatHolder)
                             throws ExoPlaybackException
```
    Description copied from class: MediaCodecRenderer
    
    Called when a new Format is read from the upstream MediaPeriod.
    
    Overrides:
    
    onInputFormatChanged in class MediaCodecRenderer
    
    Parameters:
    
    formatHolder - A FormatHolder that holds the new Format.
    
    Throws:
    
    ExoPlaybackException - If an error occurs re-initializing the MediaCodec.
  - onOutputFormatChanged
```
protected void onOutputFormatChanged(Format format,
                                     @Nullable
                                     MediaFormat mediaFormat)
                              throws ExoPlaybackException
```
    Description copied from class: MediaCodecRenderer
    
    Called when one of the output formats changes.
    The default implementation is a no-op.
    
    Overrides:
    
    onOutputFormatChanged in class MediaCodecRenderer
    
    Parameters:
    
    format - The input Format to which future output now corresponds. If the renderer is in bypass mode, this is also the output format.
    
    mediaFormat - The codec output MediaFormat, or null if the renderer is in bypass mode.
    
    Throws:
    
    ExoPlaybackException - Thrown if an error occurs configuring the output.
  - onAudioSessionId
```
protected void onAudioSessionId(int audioSessionId)
```
    Called when the audio session id becomes known. The default implementation is a no-op. One reason for overriding this method would be to instantiate and enable a Virtualizer in order to spatialize the audio channels. For this use case, any Virtualizer instances should be released in onDisabled() (if not before).
    See AudioSink.Listener.onAudioSessionId(int).
  - onPositionDiscontinuity
```
@CallSuper
protected void onPositionDiscontinuity()
```
    See AudioSink.Listener.onPositionDiscontinuity().
  - onEnabled
```
protected void onEnabled(boolean joining,
                         boolean mayRenderStartOfStream)
                  throws ExoPlaybackException
```
    Description copied from class: BaseRenderer
    
    Called when the renderer is enabled.
    The default implementation is a no-op.
    
    Overrides:
    
    onEnabled in class MediaCodecRenderer
    
    Parameters:
    
    joining - Whether this renderer is being enabled to join an ongoing playback.
    
    mayRenderStartOfStream - Whether this renderer is allowed to render the start of the stream even if the state is not Renderer.STATE_STARTED yet.
    
    Throws:
    
    ExoPlaybackException - If an error occurs.
  - onPositionReset
```
protected void onPositionReset(long positionUs,
                               boolean joining)
                        throws ExoPlaybackException
```
    Description copied from class: BaseRenderer
    
    Called when the position is reset. This occurs when the renderer is enabled after BaseRenderer.onStreamChanged(Format[], long, long) has been called, and also when a position discontinuity is encountered.
    After a position reset, the renderer's SampleStream is guaranteed to provide samples starting from a key frame.
    The default implementation is a no-op.
    
    Overrides:
    
    onPositionReset in class MediaCodecRenderer
    
    Parameters:
    
    positionUs - The new playback position in microseconds.
    
    joining - Whether this renderer is being enabled to join an ongoing playback.
    
    Throws:
    
    ExoPlaybackException - If an error occurs.
  - onStarted
```
protected void onStarted()
```
    Description copied from class: BaseRenderer
    
    Called when the renderer is started.
    The default implementation is a no-op.
    
    Overrides:
    
    onStarted in class MediaCodecRenderer
  - onStopped
```
protected void onStopped()
```
    Description copied from class: BaseRenderer
    
    Called when the renderer is stopped.
    The default implementation is a no-op.
    
    Overrides:
    
    onStopped in class MediaCodecRenderer
  - onDisabled
```
protected void onDisabled()
```
    Description copied from class: BaseRenderer
    
    Called when the renderer is disabled.
    The default implementation is a no-op.
    
    Overrides:
    
    onDisabled in class MediaCodecRenderer
  - onReset
```
protected void onReset()
```
    Description copied from class: BaseRenderer
    
    Called when the renderer is reset.
    The default implementation is a no-op.
    
    Overrides:
    
    onReset in class MediaCodecRenderer
  - isEnded
```
public boolean isEnded()
```
    Description copied from interface: Renderer
    
    Whether the renderer is ready for the ExoPlayer instance to transition to Player.STATE_ENDED. The player will make this transition as soon as true is returned by all of its renderers.
    This method may be called when the renderer is in the following states: Renderer.STATE_ENABLED, Renderer.STATE_STARTED.
    
    Specified by:
    
    isEnded in interface Renderer
    
    Overrides:
    
    isEnded in class MediaCodecRenderer
    
    Returns:
    
    Whether the renderer is ready for the player to transition to the ended state.
  - isReady
```
public boolean isReady()
```
    Description copied from interface: Renderer
    
    Whether the renderer is able to immediately render media from the current position.
    If the renderer is in the Renderer.STATE_STARTED state then returning true indicates that the renderer has everything that it needs to continue playback. Returning false indicates that the player should pause until the renderer is ready.
    If the renderer is in the Renderer.STATE_ENABLED state then returning true indicates that the renderer is ready for playback to be started. Returning false indicates that it is not.
    This method may be called when the renderer is in the following states: Renderer.STATE_ENABLED, Renderer.STATE_STARTED.
    
    Specified by:
    
    isReady in interface Renderer
    
    Overrides:
    
    isReady in class MediaCodecRenderer
    
    Returns:
    
    Whether the renderer is ready to render media.
  - getPositionUs
```
public long getPositionUs()
```
    Description copied from interface: MediaClock
    
    Returns the current media position in microseconds.
    
    Specified by:
    
    getPositionUs in interface MediaClock
  - setPlaybackParameters
```
public void setPlaybackParameters(PlaybackParameters playbackParameters)
```
    Description copied from interface: MediaClock
    
    Attempts to set the playback parameters. The media clock may override the speed if changing the playback parameters is not supported.
    
    Specified by:
    
    setPlaybackParameters in interface MediaClock
    
    Parameters:
    
    playbackParameters - The playback parameters to attempt to set.
  - getPlaybackParameters
```
public PlaybackParameters getPlaybackParameters()
```
    Description copied from interface: MediaClock
    
    Returns the active playback parameters.
    
    Specified by:
    
    getPlaybackParameters in interface MediaClock
  - onQueueInputBuffer
```
protected void onQueueInputBuffer(DecoderInputBuffer buffer)
```
    Description copied from class: MediaCodecRenderer
    
    Called immediately before an input buffer is queued into the codec.
    The default implementation is a no-op.
    
    Overrides:
    
    onQueueInputBuffer in class MediaCodecRenderer
    
    Parameters:
    
    buffer - The buffer to be queued.
  - onProcessedStreamChange
```
protected void onProcessedStreamChange()
```
    Description copied from class: MediaCodecRenderer
    
    Called after the last output buffer before a stream change has been processed.
    
    Overrides:
    
    onProcessedStreamChange in class MediaCodecRenderer
  - processOutputBuffer
```
protected boolean processOutputBuffer(long positionUs,
                                      long elapsedRealtimeUs,
                                      @Nullable
                                      MediaCodec codec,
                                      @Nullable
                                      ByteBuffer buffer,
                                      int bufferIndex,
                                      int bufferFlags,
                                      int sampleCount,
                                      long bufferPresentationTimeUs,
                                      boolean isDecodeOnlyBuffer,
                                      boolean isLastBuffer,
                                      Format format)
                               throws ExoPlaybackException
```
    Description copied from class: MediaCodecRenderer
    
    Processes an output media buffer.
    When a new ByteBuffer is passed to this method its position and limit delineate the data to be processed. The return value indicates whether the buffer was processed in full. If true is returned then the next call to this method will receive a new buffer to be processed. If false is returned then the same buffer will be passed to the next call. An implementation of this method is free to modify the buffer and can assume that the buffer will not be externally modified between successive calls. Hence an implementation can, for example, modify the buffer's position to keep track of how much of the data it has processed.
    Note that the first call to this method following a call to MediaCodecRenderer.onPositionReset(long, boolean) will always receive a new ByteBuffer to be processed.
    
    Specified by:
    
    processOutputBuffer in class MediaCodecRenderer
    
    Parameters:
    
    positionUs - The current media time in microseconds, measured at the start of the current iteration of the rendering loop.
    
    elapsedRealtimeUs - SystemClock.elapsedRealtime() in microseconds, measured at the start of the current iteration of the rendering loop.
    
    codec - The MediaCodec instance, or null in bypass mode were no codec is used.
    
    buffer - The output buffer to process, or null if the buffer data is not made available to the application layer (see MediaCodec.getOutputBuffer(int)). This buffer can only be null for video data. Note that the buffer data can still be rendered in this case by using the bufferIndex.
    
    bufferIndex - The index of the output buffer.
    
    bufferFlags - The flags attached to the output buffer.
    
    sampleCount - The number of samples extracted from the sample queue in the buffer. This allows handling multiple samples as a batch for efficiency.
    
    bufferPresentationTimeUs - The presentation time of the output buffer in microseconds.
    
    isDecodeOnlyBuffer - Whether the buffer was marked with C.BUFFER_FLAG_DECODE_ONLY by the source.
    
    isLastBuffer - Whether the buffer is the last sample of the current stream.
    
    format - The Format associated with the buffer.
    
    Returns:
    
    Whether the output buffer was fully processed (for example, rendered or skipped).
    
    Throws:
    
    ExoPlaybackException - If an error occurs processing the output buffer.
  - renderToEndOfStream
```
protected void renderToEndOfStream()
                            throws ExoPlaybackException
```
    Description copied from class: MediaCodecRenderer
    
    Incrementally renders any remaining output.
    The default implementation is a no-op.
    
    Overrides:
    
    renderToEndOfStream in class MediaCodecRenderer
    
    Throws:
    
    ExoPlaybackException - Thrown if an error occurs rendering remaining output.
  - handleMessage
```
public void handleMessage(int messageType,
                          @Nullable
                          Object message)
                   throws ExoPlaybackException
```
    Description copied from interface: PlayerMessage.Target
    
    Handles a message delivered to the target.
    
    Specified by:
    
    handleMessage in interface PlayerMessage.Target
    
    Overrides:
    
    handleMessage in class BaseRenderer
    
    Parameters:
    
    messageType - The message type.
    
    message - The message payload.
    
    Throws:
    
    ExoPlaybackException - If an error occurred whilst handling the message. Should only be thrown by targets that handle messages on the playback thread.
  - getCodecMaxInputSize
```
protected int getCodecMaxInputSize(MediaCodecInfo codecInfo,
                                   Format format,
                                   Format[] streamFormats)
```
    Returns a maximum input size suitable for configuring a codec for format in a way that will allow possible adaptation to other compatible formats in streamFormats.
    
    Parameters:
    
    codecInfo - A MediaCodecInfo describing the decoder.
    
    format - The Format for which the codec is being configured.
    
    streamFormats - The possible stream formats.
    
    Returns:
    
    A suitable maximum input size.
  - getMediaFormat
```
protected MediaFormat getMediaFormat(Format format,
                                     String codecMimeType,
                                     int codecMaxInputSize,
                                     float codecOperatingRate)
```
    Returns the framework MediaFormat that can be used to configure a MediaCodec for decoding the given Format for playback.
    
    Parameters:
    
    format - The Format of the media.
    
    codecMimeType - The MIME type handled by the codec.
    
    codecMaxInputSize - The maximum input size supported by the codec.
    
    codecOperatingRate - The codec operating rate, or MediaCodecRenderer.CODEC_OPERATING_RATE_UNSET if no codec operating rate should be set.
    
    Returns:
    
    The framework MediaFormat.

Class MediaCodecAudioRenderer

Nested Class Summary

Nested classes/interfaces inherited from class com.google.android.exoplayer2.mediacodec.MediaCodecRenderer

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.Renderer

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.RendererCapabilities

Field Summary

Fields inherited from class com.google.android.exoplayer2.mediacodec.MediaCodecRenderer

Fields inherited from interface com.google.android.exoplayer2.Renderer

Fields inherited from interface com.google.android.exoplayer2.RendererCapabilities

Constructor Summary

Method Summary

Methods inherited from class com.google.android.exoplayer2.BaseRenderer

Methods inherited from class com.google.android.exoplayer2.mediacodec.MediaCodecRenderer

Methods inherited from class java.lang.Object

Methods inherited from interface com.google.android.exoplayer2.RendererCapabilities

Constructor Detail

MediaCodecAudioRenderer

MediaCodecAudioRenderer

MediaCodecAudioRenderer

MediaCodecAudioRenderer

MediaCodecAudioRenderer

Method Detail

getName

experimentalSetEnableKeepAudioTrackOnSeek

supportsFormat

getDecoderInfos

shouldUseBypass

configureCodec

canKeepCodec

canKeepCodecWithFlush

getMediaClock

getCodecOperatingRateV23

onCodecInitialized

onInputFormatChanged

onOutputFormatChanged

onAudioSessionId

onPositionDiscontinuity

onEnabled

onPositionReset

onStarted

onStopped

onDisabled

onReset

isEnded

isReady

getPositionUs

setPlaybackParameters

getPlaybackParameters

onQueueInputBuffer

onProcessedStreamChange

processOutputBuffer

renderToEndOfStream

handleMessage

getCodecMaxInputSize

getMediaFormat