Av1SampleDependencyParser

Artifact: androidx.media3:media3-exoplayer

Kotlin |Java

@UnstableApi
public final class Av1SampleDependencyParser

An AV1 bitstream parser that identifies frames that are not depended on.

Summary

Public constructors
`Av1SampleDependencyParser()`

Public methods
`void`	`queueInputBuffer(ByteBuffer sample)` Updates the parser state with the next sample data.
`void`	`reset()` Resets the parser state.
`int`	`sampleLimitAfterSkippingNonReferenceFrame( ByteBuffer sample, boolean skipFrameHeaders )` Returns the new sample `limit` after deleting any frames that are not used as reference.

Public constructors

Av1SampleDependencyParser

public Av1SampleDependencyParser()

Public methods

queueInputBuffer

public void queueInputBuffer(ByteBuffer sample)

Updates the parser state with the next sample data.

reset

public void reset()

Resets the parser state.

sampleLimitAfterSkippingNonReferenceFrame

public int sampleLimitAfterSkippingNonReferenceFrame(
    ByteBuffer sample,
    boolean skipFrameHeaders
)

Returns the new sample limit after deleting any frames that are not used as reference.

Each AV1 temporal unit must have exactly one shown frame. Other frames in the temporal unit that aren't shown are used as reference, but the shown frame may not be used as reference. Frequently, the shown frame is the last frame in the temporal unit.

If the last frame in the temporal unit is a non-reference OBU_FRAME or OBU_FRAME_HEADER, this method returns a new limit value that would leave only the frames used as reference in the input sample.

See Ordering of OBUs.

Parameters
`ByteBuffer sample`	The sample data for one AV1 temporal unit.
`boolean skipFrameHeaders`	Whether to skip `OBU_FRAME_HEADER`.