com.google.android.exoplayer2.video

Class MediaCodecVideoRenderer

java.lang.Object

com.google.android.exoplayer2.BaseRenderer

com.google.android.exoplayer2.mediacodec.MediaCodecRenderer

com.google.android.exoplayer2.video.MediaCodecVideoRenderer

All Implemented Interfaces:

PlayerMessage.Target, Renderer, RendererCapabilities

public class MediaCodecVideoRenderer
extends MediaCodecRenderer

Decodes and renders video using MediaCodec.

This renderer accepts the following messages sent via ExoPlayer#createMessage(Target) on the playback thread:

• Message with type C.MSG_SET_SURFACE to set the output surface. The message payload should be the target Surface, or null.
• Message with type C.MSG_SET_SCALING_MODE to set the video scaling mode. The message payload should be one of the integer scaling modes in C.VideoScalingMode. Note that the scaling mode only applies if the Surface targeted by this renderer is owned by a SurfaceView.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	MediaCodecVideoRenderer.CodecMaxValues

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

MediaCodecRenderer.DecoderInitializationException

Field Summary

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

decoderCounters

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

STATE_DISABLED, STATE_ENABLED, STATE_STARTED

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 and Description
MediaCodecVideoRenderer(android.content.Context context, MediaCodecSelector mediaCodecSelector)
MediaCodecVideoRenderer(android.content.Context context, MediaCodecSelector mediaCodecSelector, long allowedJoiningTimeMs)
MediaCodecVideoRenderer(android.content.Context context, MediaCodecSelector mediaCodecSelector, long allowedJoiningTimeMs, DrmSessionManager<FrameworkMediaCrypto> drmSessionManager, boolean playClearSamplesWithoutKeys, android.os.Handler eventHandler, VideoRendererEventListener eventListener, int maxDroppedFramesToNotify)
MediaCodecVideoRenderer(android.content.Context context, MediaCodecSelector mediaCodecSelector, long allowedJoiningTimeMs, android.os.Handler eventHandler, VideoRendererEventListener eventListener, int maxDroppedFrameCountToNotify)

Method Summary

Modifier and Type	Method and Description
protected boolean	canReconfigureCodec(android.media.MediaCodec codec, boolean codecIsAdaptive, Format oldFormat, Format newFormat) Determines whether the existing MediaCodec should be reconfigured for a new format by sending codec specific initialization data at the start of the next input buffer.
protected void	configureCodec(MediaCodecInfo codecInfo, android.media.MediaCodec codec, Format format, android.media.MediaCrypto crypto) Configures a newly created MediaCodec.
protected void	dropOutputBuffer(android.media.MediaCodec codec, int index, long presentationTimeUs) Drops the output buffer with the specified index.
protected void	flushCodec()
protected MediaCodecVideoRenderer.CodecMaxValues	getCodecMaxValues(MediaCodecInfo codecInfo, Format format, Format[] streamFormats) Returns MediaCodecVideoRenderer.CodecMaxValues suitable for configuring a codec for format in a way that will allow possible adaptation to other compatible formats in streamFormats.
protected android.media.MediaFormat	getMediaFormat(Format format, MediaCodecVideoRenderer.CodecMaxValues codecMaxValues, boolean deviceNeedsAutoFrcWorkaround, int tunnelingAudioSessionId) Returns the framework MediaFormat that should be used to configure the decoder when playing media in the specified input format.
void	handleMessage(int messageType, java.lang.Object message) Handles a message delivered to the target.
boolean	isReady() Whether the renderer is able to immediately render media from the current position.
protected boolean	maybeDropBuffersToKeyframe(android.media.MediaCodec codec, int index, long presentationTimeUs, long positionUs) Drops frames from the current output buffer to the next keyframe at or before the playback position.
protected void	onCodecInitialized(java.lang.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) Called when the renderer is enabled.
protected void	onInputFormatChanged(Format newFormat) Called when a new format is read from the upstream MediaPeriod.
protected void	onOutputFormatChanged(android.media.MediaCodec codec, android.media.MediaFormat outputFormat) Called when the output format of the MediaCodec changes.
protected void	onPositionReset(long positionUs, boolean joining) Called when the position is reset.
protected void	onProcessedOutputBuffer(long presentationTimeUs) Called when an output buffer is successfully processed.
protected void	onQueueInputBuffer(DecoderInputBuffer buffer) Called immediately before an input buffer is queued into the codec.
protected void	onStarted() Called when the renderer is started.
protected void	onStopped() Called when the renderer is stopped.
protected void	onStreamChanged(Format[] formats, long offsetUs) Called when the renderer's stream has changed.
protected boolean	processOutputBuffer(long positionUs, long elapsedRealtimeUs, android.media.MediaCodec codec, java.nio.ByteBuffer buffer, int bufferIndex, int bufferFlags, long bufferPresentationTimeUs, boolean shouldSkip) Processes an output media buffer.
protected void	releaseCodec()
protected void	renderOutputBuffer(android.media.MediaCodec codec, int index, long presentationTimeUs) Renders the output buffer with the specified index.
protected void	renderOutputBufferV21(android.media.MediaCodec codec, int index, long presentationTimeUs, long releaseTimeNs) Renders the output buffer with the specified index.
protected boolean	shouldDropBuffersToKeyframe(long earlyUs, long elapsedRealtimeUs) Returns whether to drop all buffers from the buffer being processed to the keyframe at or after the current playback position, if possible.
protected boolean	shouldDropOutputBuffer(long earlyUs, long elapsedRealtimeUs) Returns whether the buffer being processed should be dropped.
protected boolean	shouldForceRenderOutputBuffer(long earlyUs, long elapsedSinceLastRenderUs) Returns whether to force rendering an output buffer.
protected boolean	shouldInitCodec(MediaCodecInfo codecInfo)
protected void	skipOutputBuffer(android.media.MediaCodec codec, int index, long presentationTimeUs) Skips the output buffer with the specified index.
protected int	supportsFormat(MediaCodecSelector mediaCodecSelector, DrmSessionManager<FrameworkMediaCrypto> drmSessionManager, Format format) Returns the extent to which the renderer is capable of supporting a given format.
protected void	updateDroppedBufferCounters(int droppedBufferCount) Updates decoder counters to reflect that droppedBufferCount additional buffers were dropped.

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

getCodec, getCodecInfo, getDecoderInfo, getDequeueOutputBufferTimeoutUs, getMediaFormatForPlayback, isEnded, maybeInitCodec, render, renderToEndOfStream, supportsFormat, supportsMixedMimeTypeAdaptation

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

disable, enable, getCapabilities, getConfiguration, getIndex, getMediaClock, getState, getStream, getTrackType, hasReadStreamToEnd, isCurrentStreamFinal, isSourceReady, maybeThrowStreamError, readSource, replaceStream, resetPosition, setCurrentStreamFinal, setIndex, skipSource, start, stop, supportsFormatDrm

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MediaCodecVideoRenderer

public MediaCodecVideoRenderer(android.content.Context context,
                               MediaCodecSelector mediaCodecSelector)

Parameters:

context - A context.

mediaCodecSelector - A decoder selector.

MediaCodecVideoRenderer

public MediaCodecVideoRenderer(android.content.Context context,
                               MediaCodecSelector mediaCodecSelector,
                               long allowedJoiningTimeMs)

Parameters:

context - A context.

mediaCodecSelector - A decoder selector.

allowedJoiningTimeMs - The maximum duration in milliseconds for which this video renderer can attempt to seamlessly join an ongoing playback.

MediaCodecVideoRenderer

public MediaCodecVideoRenderer(android.content.Context context,
                               MediaCodecSelector mediaCodecSelector,
                               long allowedJoiningTimeMs,
                               @Nullable
                               android.os.Handler eventHandler,
                               @Nullable
                               VideoRendererEventListener eventListener,
                               int maxDroppedFrameCountToNotify)

Parameters:

context - A context.

mediaCodecSelector - A decoder selector.

allowedJoiningTimeMs - The maximum duration in milliseconds for which this video renderer can attempt to seamlessly join an ongoing playback.

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.

maxDroppedFrameCountToNotify - The maximum number of frames that can be dropped between invocations of VideoRendererEventListener.onDroppedFrames(int, long).

MediaCodecVideoRenderer

public MediaCodecVideoRenderer(android.content.Context context,
                               MediaCodecSelector mediaCodecSelector,
                               long allowedJoiningTimeMs,
                               @Nullable
                               DrmSessionManager<FrameworkMediaCrypto> drmSessionManager,
                               boolean playClearSamplesWithoutKeys,
                               @Nullable
                               android.os.Handler eventHandler,
                               @Nullable
                               VideoRendererEventListener eventListener,
                               int maxDroppedFramesToNotify)

Parameters:

context - A context.

mediaCodecSelector - A decoder selector.

allowedJoiningTimeMs - The maximum duration in milliseconds for which this video renderer can attempt to seamlessly join an ongoing playback.

drmSessionManager - For use with encrypted content. May be null if support for encrypted content is not required.

playClearSamplesWithoutKeys - Encrypted media may contain clear (un-encrypted) regions. For example a media file may start with a short clear region so as to allow playback to begin in parallel with key acquisition. This parameter specifies whether the renderer is permitted to play clear regions of encrypted media files before drmSessionManager has obtained the keys necessary to decrypt encrypted regions of the media.

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.

maxDroppedFramesToNotify - The maximum number of frames that can be dropped between invocations of VideoRendererEventListener.onDroppedFrames(int, long).

Method Detail

supportsFormat

protected int supportsFormat(MediaCodecSelector mediaCodecSelector,
                             DrmSessionManager<FrameworkMediaCrypto> drmSessionManager,
                             Format format)
                      throws MediaCodecUtil.DecoderQueryException

Description copied from class: MediaCodecRenderer

Returns the extent to which the renderer is capable of supporting a given format.

Specified by:

supportsFormat in class MediaCodecRenderer

Parameters:

mediaCodecSelector - The decoder selector.

drmSessionManager - The renderer's DrmSessionManager.

format - The format.

Returns:

The extent to which the renderer is capable of supporting the given format. See MediaCodecRenderer.supportsFormat(Format) for more detail.

Throws:

MediaCodecUtil.DecoderQueryException - If there was an error querying decoders.

onEnabled

protected void onEnabled(boolean joining)
                  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.

Throws:

ExoPlaybackException - If an error occurs.

onStreamChanged

protected void onStreamChanged(Format[] formats,
                               long offsetUs)
                        throws ExoPlaybackException

Description copied from class: BaseRenderer

Called when the renderer's stream has changed. This occurs when the renderer is enabled after BaseRenderer.onEnabled(boolean) has been called, and also when the stream has been replaced whilst the renderer is enabled or started.

The default implementation is a no-op.

Overrides:

onStreamChanged in class BaseRenderer

Parameters:

formats - The enabled formats.

offsetUs - The offset that will be added to the timestamps of buffers read via BaseRenderer.readSource(FormatHolder, DecoderInputBuffer, boolean) so that decoder input buffers have monotonically increasing timestamps.

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) 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.

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.

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

handleMessage

public void handleMessage(int messageType,
                          java.lang.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.

shouldInitCodec

protected boolean shouldInitCodec(MediaCodecInfo codecInfo)

Overrides:

shouldInitCodec in class MediaCodecRenderer

configureCodec

protected void configureCodec(MediaCodecInfo codecInfo,
                              android.media.MediaCodec codec,
                              Format format,
                              android.media.MediaCrypto crypto)
                       throws MediaCodecUtil.DecoderQueryException

Description copied from class: MediaCodecRenderer

Configures a newly created MediaCodec.

Specified by:

configureCodec in class MediaCodecRenderer

Parameters:

codecInfo - Information about the MediaCodec being configured.

codec - The MediaCodec to configure.

format - The format for which the codec is being configured.

crypto - For drm protected playbacks, a MediaCrypto to use for decryption.

Throws:

MediaCodecUtil.DecoderQueryException - If an error occurs querying codecInfo.

releaseCodec

@CallSuper
protected void releaseCodec()

Overrides:

releaseCodec in class MediaCodecRenderer

flushCodec

@CallSuper
protected void flushCodec()
                              throws ExoPlaybackException

Overrides:

flushCodec in class MediaCodecRenderer

Throws:

ExoPlaybackException

onCodecInitialized

protected void onCodecInitialized(java.lang.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(Format newFormat)
                             throws ExoPlaybackException

Description copied from class: MediaCodecRenderer

Called when a new format is read from the upstream MediaPeriod.

Overrides:

onInputFormatChanged in class MediaCodecRenderer

Parameters:

newFormat - The new format.

Throws:

ExoPlaybackException - If an error occurs reinitializing the MediaCodec.

onQueueInputBuffer

@CallSuper
protected void onQueueInputBuffer(DecoderInputBuffer buffer)

Called immediately before an input buffer is queued into the codec.

Overrides:

onQueueInputBuffer in class MediaCodecRenderer

Parameters:

buffer - The buffer to be queued.

onOutputFormatChanged

protected void onOutputFormatChanged(android.media.MediaCodec codec,
                                     android.media.MediaFormat outputFormat)

Description copied from class: MediaCodecRenderer

Called when the output format of the MediaCodec changes.

The default implementation is a no-op.

Overrides:

onOutputFormatChanged in class MediaCodecRenderer

Parameters:

codec - The MediaCodec instance.

outputFormat - The new output format.

canReconfigureCodec

protected boolean canReconfigureCodec(android.media.MediaCodec codec,
                                      boolean codecIsAdaptive,
                                      Format oldFormat,
                                      Format newFormat)

Description copied from class: MediaCodecRenderer

Determines whether the existing MediaCodec should be reconfigured for a new format by sending codec specific initialization data at the start of the next input buffer. If true is returned then the MediaCodec instance will be reconfigured in this way. If false is returned then the instance will be released, and a new instance will be created for the new format.

The default implementation returns false.

Overrides:

canReconfigureCodec in class MediaCodecRenderer

Parameters:

codec - The existing MediaCodec instance.

codecIsAdaptive - Whether the codec is adaptive.

oldFormat - The format for which the existing instance is configured.

newFormat - The new format.

Returns:

Whether the existing instance can be reconfigured.

processOutputBuffer

protected boolean processOutputBuffer(long positionUs,
                                      long elapsedRealtimeUs,
                                      android.media.MediaCodec codec,
                                      java.nio.ByteBuffer buffer,
                                      int bufferIndex,
                                      int bufferFlags,
                                      long bufferPresentationTimeUs,
                                      boolean shouldSkip)
                               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.

buffer - The output buffer to process.

bufferIndex - The index of the output buffer.

bufferFlags - The flags attached to the output buffer.

bufferPresentationTimeUs - The presentation time of the output buffer in microseconds.

shouldSkip - Whether the buffer should be skipped (i.e. not rendered).

Returns:

Whether the output buffer was fully processed (e.g. rendered or skipped).

Throws:

ExoPlaybackException - If an error occurs processing the output buffer.

onProcessedOutputBuffer

@CallSuper
protected void onProcessedOutputBuffer(long presentationTimeUs)

Called when an output buffer is successfully processed.

Overrides:

onProcessedOutputBuffer in class MediaCodecRenderer

Parameters:

presentationTimeUs - The timestamp associated with the output buffer.

shouldDropOutputBuffer

protected boolean shouldDropOutputBuffer(long earlyUs,
                                         long elapsedRealtimeUs)

Returns whether the buffer being processed should be dropped.

Parameters:

earlyUs - The time until the buffer should be presented in microseconds. A negative value indicates that the buffer is late.

elapsedRealtimeUs - SystemClock.elapsedRealtime() in microseconds, measured at the start of the current iteration of the rendering loop.

shouldDropBuffersToKeyframe

protected boolean shouldDropBuffersToKeyframe(long earlyUs,
                                              long elapsedRealtimeUs)

Returns whether to drop all buffers from the buffer being processed to the keyframe at or after the current playback position, if possible.

Parameters:

earlyUs - The time until the current buffer should be presented in microseconds. A negative value indicates that the buffer is late.

elapsedRealtimeUs - SystemClock.elapsedRealtime() in microseconds, measured at the start of the current iteration of the rendering loop.

shouldForceRenderOutputBuffer

protected boolean shouldForceRenderOutputBuffer(long earlyUs,
                                                long elapsedSinceLastRenderUs)

Returns whether to force rendering an output buffer.

Parameters:

earlyUs - The time until the current buffer should be presented in microseconds. A negative value indicates that the buffer is late.

elapsedSinceLastRenderUs - The elapsed time since the last output buffer was rendered, in microseconds.

Returns:

Returns whether to force rendering an output buffer.

skipOutputBuffer

protected void skipOutputBuffer(android.media.MediaCodec codec,
                                int index,
                                long presentationTimeUs)

Skips the output buffer with the specified index.

Parameters:

codec - The codec that owns the output buffer.

index - The index of the output buffer to skip.

presentationTimeUs - The presentation time of the output buffer, in microseconds.

dropOutputBuffer

protected void dropOutputBuffer(android.media.MediaCodec codec,
                                int index,
                                long presentationTimeUs)

Drops the output buffer with the specified index.

Parameters:

codec - The codec that owns the output buffer.

index - The index of the output buffer to drop.

presentationTimeUs - The presentation time of the output buffer, in microseconds.

maybeDropBuffersToKeyframe

protected boolean maybeDropBuffersToKeyframe(android.media.MediaCodec codec,
                                             int index,
                                             long presentationTimeUs,
                                             long positionUs)
                                      throws ExoPlaybackException

Drops frames from the current output buffer to the next keyframe at or before the playback position. If no such keyframe exists, as the playback position is inside the same group of pictures as the buffer being processed, returns false. Returns true otherwise.

Parameters:

codec - The codec that owns the output buffer.

index - The index of the output buffer to drop.

presentationTimeUs - The presentation time of the output buffer, in microseconds.

positionUs - The current playback position, in microseconds.

Returns:

Whether any buffers were dropped.

Throws:

ExoPlaybackException - If an error occurs flushing the codec.

updateDroppedBufferCounters

protected void updateDroppedBufferCounters(int droppedBufferCount)

Updates decoder counters to reflect that droppedBufferCount additional buffers were dropped.

Parameters:

droppedBufferCount - The number of additional dropped buffers.

renderOutputBuffer

protected void renderOutputBuffer(android.media.MediaCodec codec,
                                  int index,
                                  long presentationTimeUs)

Renders the output buffer with the specified index. This method is only called if the platform API version of the device is less than 21.

Parameters:

codec - The codec that owns the output buffer.

index - The index of the output buffer to drop.

presentationTimeUs - The presentation time of the output buffer, in microseconds.

renderOutputBufferV21

protected void renderOutputBufferV21(android.media.MediaCodec codec,
                                     int index,
                                     long presentationTimeUs,
                                     long releaseTimeNs)

Renders the output buffer with the specified index. This method is only called if the platform API version of the device is 21 or later.

Parameters:

codec - The codec that owns the output buffer.

index - The index of the output buffer to drop.

presentationTimeUs - The presentation time of the output buffer, in microseconds.

releaseTimeNs - The wallclock time at which the frame should be displayed, in nanoseconds.

getCodecMaxValues

protected MediaCodecVideoRenderer.CodecMaxValues getCodecMaxValues(MediaCodecInfo codecInfo,
                                                                   Format format,
                                                                   Format[] streamFormats)
                                                            throws MediaCodecUtil.DecoderQueryException

Returns MediaCodecVideoRenderer.CodecMaxValues suitable for configuring a codec for format in a way that will allow possible adaptation to other compatible formats in streamFormats.

Parameters:

codecInfo - Information about the MediaCodec being configured.

format - The format for which the codec is being configured.

streamFormats - The possible stream formats.

Returns:

Suitable MediaCodecVideoRenderer.CodecMaxValues.

Throws:

MediaCodecUtil.DecoderQueryException - If an error occurs querying codecInfo.

getMediaFormat

protected android.media.MediaFormat getMediaFormat(Format format,
                                                   MediaCodecVideoRenderer.CodecMaxValues codecMaxValues,
                                                   boolean deviceNeedsAutoFrcWorkaround,
                                                   int tunnelingAudioSessionId)

Returns the framework MediaFormat that should be used to configure the decoder when playing media in the specified input format.

Parameters:

format - The format of input media.

codecMaxValues - The codec's maximum supported values.

deviceNeedsAutoFrcWorkaround - Whether the device is known to enable frame-rate conversion logic that negatively impacts ExoPlayer.

tunnelingAudioSessionId - The audio session id to use for tunneling, or C.AUDIO_SESSION_ID_UNSET if tunneling should not be enabled.

Returns:

The framework MediaFormat that should be used to configure the decoder.