NoSampleRenderer


@UnstableApi
public abstract class NoSampleRenderer implements Renderer, RendererCapabilities


A Renderer implementation whose track type is TRACK_TYPE_NONE and does not consume data from its SampleStream.

Summary

Public fields

int
@Nullable SampleStream

Public constructors

Public methods

final void

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

Returns the capabilities of the renderer.

@Nullable MediaClock

If the renderer advances its own playback position then this method returns a corresponding MediaClock.

long

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

Returns the current state of the renderer.

final @Nullable SampleStream

Returns the SampleStream being consumed, or null if the renderer is disabled.

final int

Returns the track type that the renderer handles.

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

Handles a message delivered to the target.

final boolean

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

Returns whether the current SampleStream will be the final one supplied before the renderer is next disabled or reset.

boolean

Whether the renderer is ready for the ExoPlayer instance to transition to STATE_ENDED.

boolean

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

final void

Throws an error that's preventing the renderer from reading from its SampleStream.

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

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

Signals to the renderer that the current SampleStream will be the final one supplied before it is next disabled or reset.

void

Sets the timeline that is currently being played.

final void

Starts the renderer, meaning that calls to render will cause media to be rendered.

final void

Stops the renderer, transitioning it to the STATE_ENABLED state.

int

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

int

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

Protected methods

final @Nullable RendererConfiguration

Returns the configuration set when the renderer was most recently enabled, or null if the renderer has never been enabled.

final int

Returns the index of the renderer within the player.

void

Called when the renderer is disabled.

void
onEnabled(boolean joining)

Called when the renderer is enabled.

void
onPositionReset(long positionUs, boolean joining)

Called when the position is reset.

void
onRendererOffsetChanged(long offsetUs)

Called when the renderer's offset has been changed.

void

Called when the renderer is reset.

void

Called when the renderer is started.

void

Called when the renderer is stopped.

Inherited Constants

From androidx.media3.exoplayer.Renderer
static final long

Default minimum duration that the playback clock must advance before render can make progress.

static final int

Applications or extensions may define custom MSG_* constants that can be passed to renderers.

static final int

A type of a message that can be passed to an audio renderer via createMessage.

static final int

The type of a message that can be passed to audio and video renderers via createMessage.

static final int

A type of a message that can be passed to an audio renderer via createMessage.

static final int

The type of a message that can be passed to a camera motion renderer via createMessage.

static final int

The type of a message that can be passed to a video renderer via createMessage.

static final int

The type of message that can be passed to an image renderer to set a desired image output.

static final int

The type of a message that can be passed to audio renderers via createMessage.

static final int

The type of message that can be passed to a renderer to set its priority.

static final int

The type of a message that can be passed to a MediaCodec-based video renderer via createMessage.

static final int

The type of a message that can be passed to an audio renderer via createMessage.

static final int

The type of a message that can be passed to a video renderer.

static final int

The type of a message that can be passed to a video renderer via createMessage.

static final int

The type of a message that can be passed to a video renderer via createMessage.

static final int

The type of a message that can be passed to a video renderer to set the desired output resolution.

static final int

A type of a message that can be passed to an audio renderer via createMessage.

static final int

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

The renderer is disabled.

static final int

The renderer is enabled but not started.

static final int

The renderer is started.

From androidx.media3.exoplayer.RendererCapabilities
static final int

The Renderer can adapt between formats, but may suffer a brief discontinuity (~50-100ms) when adaptation occurs.

static final int

The Renderer does not support adaptation between formats.

static final int

The Renderer can seamlessly adapt between formats.

static final int

A mask to apply to Capabilities to obtain the AdaptiveSupport only.

static final int

The renderer supports audio offload and gapless transitions with this format.

static final int

Audio offload is not supported with this format.

static final int

The renderer supports audio offload and speed changes with this format.

static final int

The renderer supports audio offload with this format.

static final int

A mask to apply to Capabilities to obtain AudioOffloadSupport only.

static final int

The format exceeds the primary decoder's capabilities but is supported by fallback decoder

static final int

The format's MIME type is unsupported and the renderer may use a decoder for a fallback MIME type.

static final int

A mask to apply to Capabilities to obtain DecoderSupport only.

static final int

The renderer is able to use the primary decoder for the format's MIME type.

static final int

A mask to apply to Capabilities to obtain the C.FormatSupport only.

static final int

The renderer is not able to use hardware acceleration.

static final int

The renderer is able to use hardware acceleration.

static final int

A mask to apply to Capabilities to obtain HardwareAccelerationSupport only.

static final int

The Renderer does not support tunneled output.

static final int

The Renderer supports tunneled output.

static final int

A mask to apply to Capabilities to obtain TunnelingSupport only.

Inherited methods

From androidx.media3.exoplayer.Renderer
void

Enables this renderer to render the start of the stream even if the state is not STATE_STARTED yet.

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.

abstract String

Returns the name of this renderer, for logging and debugging purposes.

void

Releases the renderer.

abstract void
render(long positionUs, long elapsedRealtimeUs)

Incrementally renders the SampleStream.

void
setPlaybackSpeed(float currentPlaybackSpeed, float targetPlaybackSpeed)

Indicates the playback speed to this renderer.

From androidx.media3.exoplayer.RendererCapabilities
void

Clears the Listener.

static int

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

Returns the AdaptiveSupport from the combined Capabilities.

static int

Returns the AudioOffloadSupport from the combined Capabilities.

static int

Returns the DecoderSupport from the combined Capabilities.

static int

Returns the C.FormatSupport from the combined Capabilities.

static int

Returns the HardwareAccelerationSupport from the combined Capabilities.

static int

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

Sets the Listener.

Public fields

state

public int state

stream

public @Nullable SampleStream stream

Protected fields

index

protected int index

Public constructors

NoSampleRenderer

public NoSampleRenderer()

Public methods

disable

public final void disable()

Disable the renderer, transitioning it to the STATE_DISABLED state.

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

enable

public 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.

This method may be called when the renderer is in the following states: STATE_DISABLED.

Parameters
RendererConfiguration configuration

The renderer configuration.

Format[] formats

The enabled formats.

SampleStream stream

The SampleStream from which the renderer should consume.

long positionUs

The player's current position.

boolean joining

Whether this renderer is being enabled to join an ongoing playback.

boolean mayRenderStartOfStream

Whether this renderer is allowed to render the start of the stream even if the state is not STATE_STARTED yet.

long startPositionUs

The start position of the stream in renderer time (microseconds).

long offsetUs

The offset to be added to timestamps of buffers read from stream before they are rendered.

MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId of the MediaPeriod producing the stream.

getCapabilities

public final RendererCapabilities getCapabilities()

Returns the capabilities of the renderer.

Returns
RendererCapabilities

The capabilities of the renderer.

getMediaClock

public @Nullable MediaClock getMediaClock()

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 from this method.

Returns
@Nullable MediaClock

The MediaClock tracking the playback position of the renderer, or null.

getReadingPositionUs

public 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.

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

getState

public final int getState()

Returns the current state of the renderer.

Returns
int

The current state. One of STATE_DISABLED, STATE_ENABLED and STATE_STARTED.

getStream

public final @Nullable SampleStream getStream()

Returns the SampleStream being consumed, or null if the renderer is disabled.

getTrackType

@C.TrackType
public final int getTrackType()

Returns the track type that the renderer handles.

Returns
int

The track type.

See also
getRendererType

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.

hasReadStreamToEnd

public final boolean hasReadStreamToEnd()

Returns whether the renderer has read the current SampleStream to the end.

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

init

public final void init(int index, PlayerId playerId, Clock clock)

Initializes the renderer for playback with a player.

Parameters
int index

The renderer index within the player.

PlayerId playerId

The PlayerId of the player.

Clock clock

The Clock.

isCurrentStreamFinal

public final boolean isCurrentStreamFinal()

Returns whether the current SampleStream will be the final one supplied before the renderer is next disabled or reset.

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.

maybeThrowStreamError

public final void maybeThrowStreamError()

Throws an error that's preventing the renderer from reading from its SampleStream. Does nothing if no such error exists.

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

Throws
java.io.IOException

An error that's preventing the renderer from making progress or buffering more data.

replaceStream

public final void replaceStream(
    Format[] formats,
    SampleStream stream,
    long startPositionUs,
    long offsetUs,
    MediaSource.MediaPeriodId mediaPeriodId
)

Replaces the SampleStream from which samples will be consumed.

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

Parameters
Format[] formats

The enabled formats.

SampleStream stream

The SampleStream from which the renderer should consume.

long startPositionUs

The start position of the new stream in renderer time (microseconds).

long offsetUs

The offset to be added to timestamps of buffers read from stream before they are rendered.

MediaSource.MediaPeriodId mediaPeriodId

The MediaPeriodId of the MediaPeriod producing the stream.

reset

public final void reset()

Forces the renderer to give up any resources (e.g. media decoders) that it may be holding. If the renderer is not holding any resources, the call is a no-op.

This method may be called when the renderer is in the following states: STATE_DISABLED.

resetPosition

public final void resetPosition(long positionUs)

Signals to the renderer that a position discontinuity has occurred.

After a position discontinuity, the renderer's SampleStream is guaranteed to provide samples starting from a key frame.

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

Parameters
long positionUs

The new playback position in microseconds.

Throws
androidx.media3.exoplayer.ExoPlaybackException

If an error occurs handling the reset.

setCurrentStreamFinal

public final void setCurrentStreamFinal()

Signals to the renderer that the current SampleStream will be the final one supplied before it is next disabled or reset.

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

setTimeline

public void setTimeline(Timeline timeline)

Sets the timeline that is currently being played.

start

public final void start()

Starts the renderer, meaning that calls to render will cause media to be rendered.

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

stop

public final void stop()

Stops the renderer, transitioning it to the STATE_ENABLED state.

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

supportsFormat

@RendererCapabilities.Capabilities
public 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.

supportsMixedMimeTypeAdaptation

@RendererCapabilities.AdaptiveSupport
public 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.

Protected methods

getConfiguration

protected final @Nullable RendererConfiguration getConfiguration()

Returns the configuration set when the renderer was most recently enabled, or null if the renderer has never been enabled.

getIndex

protected final int getIndex()

Returns the index of the renderer within the player.

onDisabled

protected void onDisabled()

Called when the renderer is disabled.

The default implementation is a no-op.

onEnabled

protected void onEnabled(boolean joining)

Called when the renderer is enabled.

The default implementation is a no-op.

Parameters
boolean joining

Whether this renderer is being enabled to join an ongoing playback.

onPositionReset

protected void onPositionReset(long positionUs, boolean joining)

Called when the position is reset. This occurs when the renderer is enabled after onRendererOffsetChanged has been called, and also when a position discontinuity is encountered.

The default implementation is a no-op.

Parameters
long positionUs

The new playback position in microseconds.

boolean joining

Whether this renderer is being enabled to join an ongoing playback.

onRendererOffsetChanged

protected void onRendererOffsetChanged(long offsetUs)

Called when the renderer's offset has been changed.

The default implementation is a no-op.

Parameters
long offsetUs

The offset that should be subtracted from positionUs in render to get the playback position with respect to the media.

onReset

protected void onReset()

Called when the renderer is reset.

The default implementation is a no-op.

onStarted

protected void onStarted()

Called when the renderer is started.

The default implementation is a no-op.

onStopped

protected void onStopped()

Called when the renderer is stopped.

The default implementation is a no-op.