MediaCodecRenderer

Artifact: androidx.media3:media3-exoplayer

Kotlin |Java

@UnstableApi
public abstract class MediaCodecRenderer extends BaseRenderer

java.lang.Object
↳	androidx.media3.exoplayer.BaseRenderer
	↳	androidx.media3.exoplayer.mediacodec.MediaCodecRenderer

Known direct subclasses

MediaCodecAudioRenderer, MediaCodecVideoRenderer

`MediaCodecAudioRenderer`	Decodes and renders audio using `MediaCodec` and an `AudioSink`.
`MediaCodecVideoRenderer`	Decodes and renders video using `MediaCodec`.

An abstract renderer that uses MediaCodec to decode samples for rendering.

Summary

Nested types
`public class MediaCodecRenderer.DecoderInitializationException extends Exception` Thrown when a failure occurs instantiating a decoder.

Constants
`static final float`	`CODEC_OPERATING_RATE_UNSET = -1.0f` Indicates no codec operating rate should be set.

Protected fields
`@Nullable MediaCodecAdapter`	`codec`
`@Nullable MediaCodecInfo`	`codecInfo`
`boolean`	`codecNeedsEosPropagation`
`float`	`codecOperatingRate`
`@Nullable MediaFormat`	`codecOutputMediaFormat`
`DecoderCounters`	`decoderCounters`
`long`	`lastBufferInStreamPresentationTimeUs`
`@MonotonicNonNull Renderer.WakeupListener`	`@MonotonicNonNull wakeupListener`

Public constructors
`MediaCodecRenderer( @C.TrackType int trackType, MediaCodecAdapter.Factory codecAdapterFactory, MediaCodecSelector mediaCodecSelector, boolean enableDecoderFallback, float assumedMinimumCodecOperatingRate )`

Public methods
`void`	`experimentalEnableProcessedStreamChangedAtStart()` Enables the renderer to invoke `onProcessedStreamChange` on the first stream.
`final long`	`getDurationToProgressUs(long positionUs, long elapsedRealtimeUs)` Returns minimum amount of playback clock time that must pass in order for the `render` call to make progress.
`void`	`handleMessage( @Renderer.MessageType int messageType, @Nullable Object message )` Handles a message delivered to the target.
`boolean`	`isEnded()` Whether the renderer is ready for the `ExoPlayer` instance to transition to `STATE_ENDED`.
`boolean`	`isReady()` Whether the renderer is able to immediately render media from the current position.
`void`	`render(long positionUs, long elapsedRealtimeUs)` Incrementally renders the `SampleStream`.
`void`	`setPlaybackSpeed(float currentPlaybackSpeed, float targetPlaybackSpeed)` Indicates the playback speed to this renderer.
`void`	`setRenderTimeLimitMs(long renderTimeLimitMs)` Sets a limit on the time a single `render` call can spend draining and filling the decoder.
`final int`	`@RendererCapabilities.Capabilities supportsFormat(Format format)` Returns the extent to which the `Renderer` supports a given format.
`final int`	`@RendererCapabilities.AdaptiveSupport supportsMixedMimeTypeAdaptation()` Returns the extent to which the `Renderer` supports adapting between supported formats that have different MIME types.

Protected methods
`DecoderReuseEvaluation`	`canReuseCodec( MediaCodecInfo codecInfo, Format oldFormat, Format newFormat )` Evaluates whether the existing `MediaCodec` can be kept for a new `Format`, and if it can whether it requires reconfiguration.
`MediaCodecDecoderException`	`createDecoderException( Throwable cause, @Nullable MediaCodecInfo codecInfo )`
`final boolean`	`flushOrReinitializeCodec()` Flushes the codec.
`boolean`	`flushOrReleaseCodec()` Flushes the codec.
`final @Nullable MediaCodecAdapter`	`getCodec()`
`int`	`getCodecBufferFlags(DecoderInputBuffer buffer)` Returns the flags that should be set on `queueInputBuffer` or `queueSecureInputBuffer` for this buffer.
`final @Nullable MediaCodecInfo`	`getCodecInfo()`
`boolean`	`getCodecNeedsEosPropagation()` Returns whether the codec needs the renderer to propagate the end-of-stream signal directly, rather than by using an end-of-stream buffer queued to the codec.
`float`	`getCodecOperatingRate()` Returns the operating rate used by the current codec
`float`	`getCodecOperatingRateV23( float targetPlaybackSpeed, Format format, Format[] streamFormats )` Returns the `KEY_OPERATING_RATE` value for a given playback speed, current `Format` and set of possible stream formats.
`final @Nullable MediaFormat`	`getCodecOutputMediaFormat()`
`abstract 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.
`long`	`getDurationToProgressUs( long positionUs, long elapsedRealtimeUs, boolean isOnBufferAvailableListenerRegistered )` Returns minimum time playback must advance in order for the `render` call to make progress.
`long`	`getLastBufferInStreamPresentationTimeUs()` Returns the presentation time of the last buffer in the stream.
`abstract MediaCodecAdapter.Configuration`	`getMediaCodecConfiguration( MediaCodecInfo codecInfo, Format format, @Nullable MediaCrypto crypto, float codecOperatingRate )` Returns the `MediaCodecAdapter.Configuration` that will be used to create and configure a `MediaCodec` to decode the given `Format` for a playback.
`final long`	`getOutputStreamOffsetUs()` Returns the offset that should be subtracted from `bufferPresentationTimeUs` in `processOutputBuffer` to get the playback position with respect to the media.
`final long`	`getOutputStreamStartPositionUs()` Returns the start position of the current output stream in microseconds.
`float`	`getPlaybackSpeed()` Returns the current playback speed, as set by `setPlaybackSpeed`.
`final @Nullable Renderer.WakeupListener`	`getWakeupListener()` Returns listener used to signal that `render` should be called.
`void`	`handleInputBufferSupplementalData(DecoderInputBuffer buffer)` Handles supplemental data associated with an input buffer.
`final boolean`	`isBypassEnabled()` Returns whether bypass is enabled by the renderer.
`final boolean`	`isBypassPossible(Format format)` Returns whether buffers in the input format can be processed without a codec.
`final void`	`maybeInitCodecOrBypass()`
`boolean`	`maybeInitializeProcessingPipeline(Format format)` Initializes the processing pipeline, if needed by the implementation.
`void`	`onCodecError(Exception codecError)` Called when a codec error has occurred.
`void`	`onCodecInitialized( String name, MediaCodecAdapter.Configuration configuration, long initializedTimestampMs, long initializationDurationMs )` Called when a `MediaCodec` has been created and configured.
`void`	`onCodecReleased(String name)` Called when a `MediaCodec` has been released.
`void`	`onDisabled()` Called when the renderer is disabled.
`void`	`onEnabled(boolean joining, boolean mayRenderStartOfStream)` Called when the renderer is enabled.
`@Nullable DecoderReuseEvaluation`	`@CallSuper onInputFormatChanged(FormatHolder formatHolder)` Called when a new `Format` is read from the upstream `MediaPeriod`.
`void`	`onOutputFormatChanged(Format format, @Nullable MediaFormat mediaFormat)` Called when one of the output formats changes.
`void`	`onOutputStreamOffsetUsChanged(long outputStreamOffsetUs)` Called after the output stream offset changes.
`void`	`onPositionReset(long positionUs, boolean joining)` Called when the position is reset.
`void`	`@CallSuper onProcessedOutputBuffer(long presentationTimeUs)` Called when an output buffer is successfully processed.
`void`	`onProcessedStreamChange()` Called after the last output buffer before a stream change has been processed.
`void`	`onQueueInputBuffer(DecoderInputBuffer buffer)` Called immediately before an input buffer is queued into the codec.
`void`	`onReset()` Called when the renderer is reset.
`void`	`onStarted()` Called when the renderer is started.
`void`	`onStopped()` Called when the renderer is stopped.
`void`	`onStreamChanged( Format[] formats, long startPositionUs, long offsetUs, MediaSource.MediaPeriodId mediaPeriodId )` Called when the renderer's stream has changed.
`void`	`onWakeupListenerSet(Renderer.WakeupListener wakeupListener)` Called when a `WakeupListener` is set.
`abstract boolean`	`processOutputBuffer( long positionUs, long elapsedRealtimeUs, @Nullable MediaCodecAdapter codec, @Nullable ByteBuffer buffer, int bufferIndex, int bufferFlags, int sampleCount, long bufferPresentationTimeUs, boolean isDecodeOnlyBuffer, boolean isLastBuffer, Format format )` Processes an output media buffer.
`void`	`releaseCodec()`
`void`	`renderToEndOfStream()` Incrementally renders any remaining output.
`void`	`@CallSuper resetCodecStateForFlush()` Resets the renderer internal state after a codec flush.
`void`	`@CallSuper resetCodecStateForRelease()` Resets the renderer internal state after a codec release.
`final void`	`setPendingOutputEndOfStream()` Notifies the renderer that output end of stream is pending and should be handled on the next render.
`final void`	`setPendingPlaybackException(ExoPlaybackException exception)` Sets an exception to be re-thrown by render.
`boolean`	`shouldDiscardDecoderInputBuffer(DecoderInputBuffer buffer)` Returns whether the input buffer should be discarded before decoding.
`boolean`	`shouldInitCodec(MediaCodecInfo codecInfo)`
`boolean`	`shouldReinitCodec()` Returns whether the renderer needs to re-initialize the codec, possibly as a result of a change in device capabilities.
`boolean`	`shouldSkipDecoderInputBuffer(DecoderInputBuffer buffer)` Returns whether the input buffer should be skipped before the decoder.
`boolean`	`shouldUseBypass(Format format)` Returns whether buffers in the input format can be processed without a codec.
`abstract int`	`@RendererCapabilities.Capabilities supportsFormat(MediaCodecSelector mediaCodecSelector, Format format)` Returns the `Capabilities` for the given `Format`.
`static boolean`	`supportsFormatDrm(Format format)` Returns whether this renderer supports the given `Format's` DRM scheme.
`final boolean`	`updateCodecOperatingRate()` Updates the codec operating rate, or triggers codec release and re-initialization if a previously set operating rate needs to be cleared.
`final void`	`updateOutputFormatForTime(long presentationTimeUs)` Updates the output formats for the specified output buffer timestamp, calling `onOutputFormatChanged` if a change has occurred.

Inherited Constants

From androidx.media3.exoplayer.Renderer

`static final long`	`DEFAULT_DURATION_TO_PROGRESS_US = 10000` Default minimum duration that the playback clock must advance before `render` can make progress.
`static final int`	`MSG_CUSTOM_BASE = 10000` Applications or extensions may define custom `MSG_*` constants that can be passed to renderers.
`static final int`	`MSG_SET_AUDIO_ATTRIBUTES = 3` A type of a message that can be passed to an audio renderer via `createMessage`.
`static final int`	`MSG_SET_AUDIO_SESSION_ID = 10` The type of a message that can be passed to audio and video renderers via `createMessage`.
`static final int`	`MSG_SET_AUX_EFFECT_INFO = 6` A type of a message that can be passed to an audio renderer via `createMessage`.
`static final int`	`MSG_SET_CAMERA_MOTION_LISTENER = 8` The type of a message that can be passed to a camera motion renderer via `createMessage`.
`static final int`	`MSG_SET_CHANGE_FRAME_RATE_STRATEGY = 5` The type of a message that can be passed to a video renderer via `createMessage`.
`static final int`	`MSG_SET_IMAGE_OUTPUT = 15` The type of message that can be passed to an image renderer to set a desired image output.
`static final int`	`MSG_SET_PREFERRED_AUDIO_DEVICE = 12` The type of a message that can be passed to audio renderers via `createMessage`.
`static final int`	`MSG_SET_PRIORITY = 16` The type of message that can be passed to a renderer to set its priority.
`static final int`	`MSG_SET_SCALING_MODE = 4` The type of a message that can be passed to a `MediaCodec`-based video renderer via `createMessage`.
`static final int`	`MSG_SET_SKIP_SILENCE_ENABLED = 9` The type of a message that can be passed to an audio renderer via `createMessage`.
`static final int`	`MSG_SET_VIDEO_EFFECTS = 13` The type of a message that can be passed to a video renderer.
`static final int`	`MSG_SET_VIDEO_FRAME_METADATA_LISTENER = 7` The type of a message that can be passed to a video renderer via `createMessage`.
`static final int`	`MSG_SET_VIDEO_OUTPUT = 1` The type of a message that can be passed to a video renderer via `createMessage`.
`static final int`	`MSG_SET_VIDEO_OUTPUT_RESOLUTION = 14` The type of a message that can be passed to a video renderer to set the desired output resolution.
`static final int`	`MSG_SET_VOLUME = 2` A type of a message that can be passed to an audio renderer via `createMessage`.
`static final int`	`MSG_SET_WAKEUP_LISTENER = 11` The type of a message that can be passed to a `Renderer` via `createMessage`, to inform the renderer that it can schedule waking up another component.
`static final int`	`MSG_TRANSFER_RESOURCES = 17` The type of message that can be passed to a renderer to direct it to transfer relevant resources to another renderer.
`static final int`	`STATE_DISABLED = 0` The renderer is disabled.
`static final int`	`STATE_ENABLED = 1` The renderer is enabled but not started.
`static final int`	`STATE_STARTED = 2` The renderer is started.

From androidx.media3.exoplayer.RendererCapabilities

`static final int`	`ADAPTIVE_NOT_SEAMLESS = 8` The `Renderer` can adapt between formats, but may suffer a brief discontinuity (~50-100ms) when adaptation occurs.
`static final int`	`ADAPTIVE_NOT_SUPPORTED = 0` The `Renderer` does not support adaptation between formats.
`static final int`	`ADAPTIVE_SEAMLESS = 16` The `Renderer` can seamlessly adapt between formats.
`static final int`	`ADAPTIVE_SUPPORT_MASK = 24` A mask to apply to `Capabilities` to obtain the `AdaptiveSupport` only.
`static final int`	`AUDIO_OFFLOAD_GAPLESS_SUPPORTED = 1024` The renderer supports audio offload and gapless transitions with this format.
`static final int`	`AUDIO_OFFLOAD_NOT_SUPPORTED = 0` Audio offload is not supported with this format.
`static final int`	`AUDIO_OFFLOAD_SPEED_CHANGE_SUPPORTED = 2048` The renderer supports audio offload and speed changes with this format.
`static final int`	`AUDIO_OFFLOAD_SUPPORTED = 512` The renderer supports audio offload with this format.
`static final int`	`AUDIO_OFFLOAD_SUPPORT_MASK = 3584` A mask to apply to `Capabilities` to obtain `AudioOffloadSupport` only.
`static final int`	`DECODER_SUPPORT_FALLBACK = 0` The format exceeds the primary decoder's capabilities but is supported by fallback decoder
`static final int`	`DECODER_SUPPORT_FALLBACK_MIMETYPE = 256` The format's MIME type is unsupported and the renderer may use a decoder for a fallback MIME type.
`static final int`	`DECODER_SUPPORT_MASK = 384` A mask to apply to `Capabilities` to obtain `DecoderSupport` only.
`static final int`	`DECODER_SUPPORT_PRIMARY = 128` The renderer is able to use the primary decoder for the format's MIME type.
`static final int`	`FORMAT_SUPPORT_MASK = 7` A mask to apply to `Capabilities` to obtain the `C.FormatSupport` only.
`static final int`	`HARDWARE_ACCELERATION_NOT_SUPPORTED = 0` The renderer is not able to use hardware acceleration.
`static final int`	`HARDWARE_ACCELERATION_SUPPORTED = 64` The renderer is able to use hardware acceleration.
`static final int`	`HARDWARE_ACCELERATION_SUPPORT_MASK = 64` A mask to apply to `Capabilities` to obtain `HardwareAccelerationSupport` only.
`static final int`	`TUNNELING_NOT_SUPPORTED = 0` The `Renderer` does not support tunneled output.
`static final int`	`TUNNELING_SUPPORTED = 32` The `Renderer` supports tunneled output.
`static final int`	`TUNNELING_SUPPORT_MASK = 32` A mask to apply to `Capabilities` to obtain `TunnelingSupport` only.

Inherited fields

From androidx.media3.exoplayer.BaseRenderer

`@MonotonicNonNull Clock`	`@MonotonicNonNull clock`
`@Nullable RendererConfiguration`	`configuration`
`final FormatHolder`	`formatHolder`
`int`	`index`
`long`	`lastResetPositionUs`
`@MonotonicNonNull PlayerId`	`@MonotonicNonNull playerId`
`long`	`readingPositionUs`
`int`	`state`
`@Nullable SampleStream`	`stream`
`@Nullable Format[]`	`streamFormats`
`long`	`streamOffsetUs`
`Timeline`	`timeline`
`final int`	`@C.TrackType trackType`

Inherited methods

From androidx.media3.exoplayer.BaseRenderer

`final void`	`clearListener()` Clears the `Listener`.
`final ExoPlaybackException`	`createRendererException( Throwable cause, @Nullable Format format, @PlaybackException.ErrorCode int errorCode )` Creates an `ExoPlaybackException` of type `TYPE_RENDERER` for this renderer.
`final ExoPlaybackException`	`createRendererException( Throwable cause, @Nullable Format format, boolean isRecoverable, @PlaybackException.ErrorCode int errorCode )` Creates an `ExoPlaybackException` of type `TYPE_RENDERER` for this renderer.
`final void`	`disable()` Disable the renderer, transitioning it to the `STATE_DISABLED` state.
`final void`	`enable( RendererConfiguration configuration, Format[] formats, SampleStream stream, long positionUs, boolean joining, boolean mayRenderStartOfStream, long startPositionUs, long offsetUs, MediaSource.MediaPeriodId mediaPeriodId )` Enables the renderer to consume from the specified `SampleStream`.
`final RendererCapabilities`	`getCapabilities()` Returns the capabilities of the renderer.
`final Clock`	`getClock()` Returns the `Clock`.
`final RendererConfiguration`	`getConfiguration()` Returns the configuration set when the renderer was most recently enabled.
`final FormatHolder`	`getFormatHolder()` Returns a clear `FormatHolder`.
`final int`	`getIndex()` Returns the index of the renderer within the player.
`final long`	`getLastResetPositionUs()` Returns the position passed to the most recent call to `enable` or resetPosition.
`@Nullable MediaClock`	`getMediaClock()` If the renderer advances its own playback position then this method returns a corresponding `MediaClock`.
`final PlayerId`	`getPlayerId()` Returns the `PlayerId` of the player using this renderer.
`final long`	`getReadingPositionUs()` Returns the renderer time up to which the renderer has read samples, in microseconds, or `TIME_END_OF_SOURCE` if the renderer has read the current `SampleStream` to the end.
`final int`	`getState()` Returns the current state of the renderer.
`final @Nullable SampleStream`	`getStream()` Returns the `SampleStream` being consumed, or null if the renderer is disabled.
`final Format[]`	`getStreamFormats()` Returns the formats of the currently enabled stream.
`final long`	`getStreamOffsetUs()` Returns the offset added to timestamps of buffers read from the `SampleStream`.
`final Timeline`	`getTimeline()` Returns the current `Timeline` containing the rendered stream.
`final int`	`@C.TrackType getTrackType()` Returns the track type that the renderer handles.
`final boolean`	`hasReadStreamToEnd()` Returns whether the renderer has read the current `SampleStream` to the end.
`final void`	`init(int index, PlayerId playerId, Clock clock)` Initializes the renderer for playback with a player.
`final boolean`	`isCurrentStreamFinal()` Returns whether the current `SampleStream` will be the final one supplied before the renderer is next disabled or reset.
`final boolean`	`isSourceReady()` Returns whether the upstream source is ready.
`final void`	`maybeThrowStreamError()` Throws an error that's preventing the renderer from reading from its `SampleStream`.
`void`	`onInit()` Called when the renderer is initialized.
`void`	`onRelease()` Called when the renderer is released.
`final void`	`onRendererCapabilitiesChanged()` Called when the renderer capabilities are changed.
`void`	`onTimelineChanged(Timeline timeline)` Called when a new timeline is `set`.
`final int`	`@SampleStream.ReadDataResult readSource( FormatHolder formatHolder, DecoderInputBuffer buffer, @SampleStream.ReadFlags int readFlags )` Reads from the enabled upstream source.
`final void`	`release()` Releases the renderer.
`final void`	`replaceStream( Format[] formats, SampleStream stream, long startPositionUs, long offsetUs, MediaSource.MediaPeriodId mediaPeriodId )` Replaces the `SampleStream` from which samples will be consumed.
`final void`	`reset()` Forces the renderer to give up any resources (e.g. media decoders) that it may be holding.
`final void`	`resetPosition(long positionUs)` Signals to the renderer that a position discontinuity has occurred.
`final void`	`setCurrentStreamFinal()` Signals to the renderer that the current `SampleStream` will be the final one supplied before it is next disabled or reset.
`final void`	`setListener(RendererCapabilities.Listener listener)` Sets the `Listener`.
`final void`	`setTimeline(Timeline timeline)` Sets the timeline that is currently being played.
`int`	`skipSource(long positionUs)` Attempts to skip to the keyframe before the specified position, or to the end of the stream if `positionUs` is beyond it.
`final void`	`start()` Starts the renderer, meaning that calls to `render` will cause media to be rendered.
`final void`	`stop()` Stops the renderer, transitioning it to the `STATE_ENABLED` state.

From androidx.media3.exoplayer.Renderer

`abstract void`	`enable( RendererConfiguration configuration, Format[] formats, SampleStream stream, long positionUs, boolean joining, boolean mayRenderStartOfStream, long startPositionUs, long offsetUs, MediaSource.MediaPeriodId mediaPeriodId )` Enables the renderer to consume from the specified `SampleStream`.
`void`	`enableMayRenderStartOfStream()` Enables this renderer to render the start of the stream even if the state is not `STATE_STARTED` yet.
`abstract String`	`getName()` Returns the name of this renderer, for logging and debugging purposes.
`abstract void`	`replaceStream( Format[] formats, SampleStream stream, long startPositionUs, long offsetUs, MediaSource.MediaPeriodId mediaPeriodId )` Replaces the `SampleStream` from which samples will be consumed.

From androidx.media3.exoplayer.RendererCapabilities

`static int`	`@RendererCapabilities.Capabilities create(@C.FormatSupport int formatSupport)` Returns `Capabilities` for the given `C.FormatSupport`.
`static int`	`@RendererCapabilities.Capabilities create( @C.FormatSupport int formatSupport, @RendererCapabilities.AdaptiveSupport int adaptiveSupport, @RendererCapabilities.TunnelingSupport int tunnelingSupport )` Returns `Capabilities` combining the given `C.FormatSupport`, and `TunnelingSupport`.
`static int`	`@RendererCapabilities.Capabilities create( @C.FormatSupport int formatSupport, @RendererCapabilities.AdaptiveSupport int adaptiveSupport, @RendererCapabilities.TunnelingSupport int tunnelingSupport, @RendererCapabilities.AudioOffloadSupport int audioOffloadSupport )` Returns `Capabilities` combining the given `C.FormatSupport`, , `TunnelingSupport`, and `AudioOffloadSupport`.
`static int`	`@RendererCapabilities.Capabilities create( @C.FormatSupport int formatSupport, @RendererCapabilities.AdaptiveSupport int adaptiveSupport, @RendererCapabilities.TunnelingSupport int tunnelingSupport, @RendererCapabilities.HardwareAccelerationSupport int hardwareAccelerationSupport, @RendererCapabilities.DecoderSupport int decoderSupport )` Returns `Capabilities` combining the given `C.FormatSupport`, , `TunnelingSupport`, `HardwareAccelerationSupport`, and .
`static int`	`@RendererCapabilities.Capabilities create( @C.FormatSupport int formatSupport, @RendererCapabilities.AdaptiveSupport int adaptiveSupport, @RendererCapabilities.TunnelingSupport int tunnelingSupport, @RendererCapabilities.HardwareAccelerationSupport int hardwareAccelerationSupport, @RendererCapabilities.DecoderSupport int decoderSupport, @RendererCapabilities.AudioOffloadSupport int audioOffloadSupport )` Returns `Capabilities` combining the given `C.FormatSupport`, , `TunnelingSupport`, `HardwareAccelerationSupport`, and `AudioOffloadSupport`.
`static int`	`@RendererCapabilities.AdaptiveSupport getAdaptiveSupport(@RendererCapabilities.Capabilities int supportFlags)` Returns the `AdaptiveSupport` from the combined `Capabilities`.
`static int`	`@RendererCapabilities.AudioOffloadSupport getAudioOffloadSupport( @RendererCapabilities.Capabilities int supportFlags )` Returns the `AudioOffloadSupport` from the combined `Capabilities`.
`static int`	`@RendererCapabilities.DecoderSupport getDecoderSupport(@RendererCapabilities.Capabilities int supportFlags)` Returns the `DecoderSupport` from the combined `Capabilities`.
`static int`	`@C.FormatSupport getFormatSupport(@RendererCapabilities.Capabilities int supportFlags)` Returns the `C.FormatSupport` from the combined `Capabilities`.
`static int`	`@RendererCapabilities.HardwareAccelerationSupport getHardwareAccelerationSupport( @RendererCapabilities.Capabilities int supportFlags )` Returns the `HardwareAccelerationSupport` from the combined `Capabilities`.
`static int`	`@RendererCapabilities.TunnelingSupport getTunnelingSupport(@RendererCapabilities.Capabilities int supportFlags)` Returns the `TunnelingSupport` from the combined `Capabilities`.
`static boolean`	`isFormatSupported( @RendererCapabilities.Capabilities int supportFlags, boolean allowExceedsCapabilities )` Returns whether the `C.FormatSupport` from the combined `Capabilities` indicates the format is supported.
`void`	`setListener(RendererCapabilities.Listener listener)` Sets the `Listener`.

Constants

CODEC_OPERATING_RATE_UNSET

protected static final float CODEC_OPERATING_RATE_UNSET = -1.0f

Indicates no codec operating rate should be set.

Protected fields

codec

protected @Nullable MediaCodecAdapter codec

codecInfo

protected @Nullable MediaCodecInfo codecInfo

codecNeedsEosPropagation

protected boolean codecNeedsEosPropagation

codecOperatingRate

protected float codecOperatingRate

codecOutputMediaFormat

protected @Nullable MediaFormat codecOutputMediaFormat

decoderCounters

protected DecoderCounters decoderCounters

lastBufferInStreamPresentationTimeUs

protected long lastBufferInStreamPresentationTimeUs

wakeupListener

@MonotonicNonNull
protected @MonotonicNonNull Renderer.WakeupListener wakeupListener

Public constructors

MediaCodecRenderer

public MediaCodecRenderer(
    @C.TrackType int trackType,
    MediaCodecAdapter.Factory codecAdapterFactory,
    MediaCodecSelector mediaCodecSelector,
    boolean enableDecoderFallback,
    float assumedMinimumCodecOperatingRate
)

Parameters
`@C.TrackType int trackType`	The `track type` that the renderer handles.
`MediaCodecAdapter.Factory codecAdapterFactory`	A factory for `MediaCodecAdapter` instances.
`MediaCodecSelector mediaCodecSelector`	A decoder selector.
`boolean enableDecoderFallback`	Whether to enable fallback to lower-priority decoders if decoder initialization fails. This may result in using a decoder that is less efficient or slower than the primary decoder.
`float assumedMinimumCodecOperatingRate`	A codec operating rate that all codecs instantiated by this renderer are assumed to meet implicitly (i.e. without the operating rate being set explicitly using `KEY_OPERATING_RATE`).

Public methods

experimentalEnableProcessedStreamChangedAtStart

public void experimentalEnableProcessedStreamChangedAtStart()

Enables the renderer to invoke onProcessedStreamChange on the first stream.

When not enabled, onProcessedStreamChange is invoked from the second stream onwards.

getDurationToProgressUs

public final long getDurationToProgressUs(long positionUs, long elapsedRealtimeUs)

Returns minimum amount of playback clock time that must pass in order for the render call to make progress.

The default return time is DEFAULT_DURATION_TO_PROGRESS_US.

Parameters
`long positionUs`	The current render position in microseconds, measured at the start of the current iteration of the rendering loop.
`long elapsedRealtimeUs`	`elapsedRealtime` in microseconds, measured at the start of the current iteration of the rendering loop.

Returns
`long`	Minimum amount of playback clock time that must pass before renderer is able to make progress.

handleMessage

public void handleMessage(
    @Renderer.MessageType int messageType,
    @Nullable Object message
)

Handles a message delivered to the target.

Parameters
`@Renderer.MessageType int messageType`	The message type.
`@Nullable Object message`	The message payload.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurred whilst handling the message. Should only be thrown by targets that handle messages on the playback thread.

isEnded

public boolean isEnded()

Whether the renderer is ready for the ExoPlayer instance to transition to 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: STATE_ENABLED, STATE_STARTED.

Returns
`boolean`	Whether the renderer is ready for the player to transition to the ended state.

isReady

public boolean isReady()

Whether the renderer is able to immediately render media from the current position.

If the renderer is in the 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 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: STATE_ENABLED, STATE_STARTED.

Returns
`boolean`	Whether the renderer is ready to render media.

render

public void render(long positionUs, long elapsedRealtimeUs)

Incrementally renders the SampleStream.

If the renderer is in the STATE_ENABLED state then each call to this method will do work toward being ready to render the SampleStream when the renderer is started. If the renderer is in the STATE_STARTED state then calls to this method will render the SampleStream in sync with the specified media positions.

The renderer may also render the very start of the media at the current position (e.g. the first frame of a video stream) while still in the STATE_ENABLED state, unless it's the initial start of the media after calling enable with mayRenderStartOfStream set to false.

This method should return quickly, and should not block if the renderer is unable to make useful progress.

This method may be called when the renderer is in the following states: STATE_ENABLED, STATE_STARTED.

Parameters
`long positionUs`	The current media time in microseconds, measured at the start of the current iteration of the rendering loop.
`long elapsedRealtimeUs`	`elapsedRealtime` in microseconds, measured at the start of the current iteration of the rendering loop.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs.

setPlaybackSpeed

public void setPlaybackSpeed(float currentPlaybackSpeed, float targetPlaybackSpeed)

Indicates the playback speed to this renderer.

The default implementation is a no-op.

Parameters
`float currentPlaybackSpeed`	The factor by which playback is currently sped up.
`float targetPlaybackSpeed`	The target factor by which playback should be sped up. This may be different from `currentPlaybackSpeed`, for example, if the speed is temporarily adjusted for live playback.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs handling the playback speed.

setRenderTimeLimitMs

public void setRenderTimeLimitMs(long renderTimeLimitMs)

Sets a limit on the time a single render call can spend draining and filling the decoder.

This method should be called right after creating an instance of this class.

Parameters
`long renderTimeLimitMs`	The render time limit in milliseconds, or `TIME_UNSET` for no limit.

supportsFormat

@RendererCapabilities.Capabilities
public final int supportsFormat(Format format)

Returns the extent to which the Renderer supports a given format.

Parameters
`Format format`	The format.

Returns
`int`	The `Capabilities` for this format.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs.

supportsMixedMimeTypeAdaptation

@RendererCapabilities.AdaptiveSupport
public final int supportsMixedMimeTypeAdaptation()

Returns the extent to which the Renderer supports adapting between supported formats that have different MIME types.

Returns
`int`	The `AdaptiveSupport` for adapting between supported formats that have different MIME types.

Throws
`androidx.media3.exoplayer.ExoPlaybackException`	If an error occurs.

Protected methods

canReuseCodec

protected DecoderReuseEvaluation canReuseCodec(
    MediaCodecInfo codecInfo,
    Format oldFormat,
    Format newFormat
)

Evaluates whether the existing MediaCodec can be kept for a new Format, and if it can whether it requires reconfiguration.

The default implementation does not allow decoder reuse.

Parameters
`MediaCodecInfo codecInfo`	A `MediaCodecInfo` describing the decoder.
`Format oldFormat`	The `Format` for which the existing instance is configured.
`Format newFormat`	The new `Format`.

MediaCodecRenderer

Summary

Nested types

Constants

Protected fields

Public constructors

Public methods

Protected methods

Inherited Constants

Inherited fields

Inherited methods

Constants

CODEC_OPERATING_RATE_UNSET

Protected fields

codec

codecInfo

codecNeedsEosPropagation

codecOperatingRate

codecOutputMediaFormat

decoderCounters

lastBufferInStreamPresentationTimeUs

wakeupListener

Public constructors

MediaCodecRenderer

Public methods

experimentalEnableProcessedStreamChangedAtStart

getDurationToProgressUs

handleMessage

isEnded

isReady

render

setPlaybackSpeed

setRenderTimeLimitMs

supportsFormat

supportsMixedMimeTypeAdaptation

Protected methods

canReuseCodec