MediaCodecAdapter

fun dequeueInputBufferIndex(): Int

Returns the next available input buffer index from the underlying MediaCodec or INFO_TRY_AGAIN_LATER if no such buffer exists.

fun dequeueOutputBufferIndex(bufferInfo: MediaCodec.BufferInfo!): Int

Returns the next available output buffer index from the underlying MediaCodec. If the next available output is a MediaFormat change, it will return INFO_OUTPUT_FORMAT_CHANGED and you should call getOutputFormat to get the format. If there is no available output, this method will return INFO_TRY_AGAIN_LATER.

@RequiresApi(value = 35)
fun detachOutputSurface(): Unit

Detaches the current output surface.

fun flush(): Unit

Flushes the adapter and the underlying MediaCodec.

fun getInputBuffer(index: Int): ByteBuffer?

Returns a writable ByteBuffer object for a dequeued input buffer index.

@RequiresApi(value = 26)
fun getMetrics(): PersistableBundle!

Returns metrics data about the current codec instance.

fun getOutputBuffer(index: Int): ByteBuffer?

Returns a read-only ByteBuffer for a dequeued output buffer index.

fun getOutputFormat(): MediaFormat!

Gets the MediaFormat that was output from the MediaCodec.

Call this method if a previous call to dequeueOutputBufferIndex returned INFO_OUTPUT_FORMAT_CHANGED.

fun needsReconfiguration(): Boolean

Whether the adapter needs to be reconfigured before it is used.

fun queueInputBuffer(
    index: Int,
    offset: Int,
    size: Int,
    presentationTimeUs: Long,
    flags: Int
): Unit

Submit an input buffer for decoding.

The index must be an input buffer index that has been obtained from a previous call to dequeueInputBufferIndex.

fun queueSecureInputBuffer(
    index: Int,
    offset: Int,
    info: CryptoInfo!,
    presentationTimeUs: Long,
    flags: Int
): Unit

Submit an input buffer that is potentially encrypted for decoding.

The index must be an input buffer index that has been obtained from a previous call to dequeueInputBufferIndex.

This method behaves like queueSecureInputBuffer, with the difference that info is of type CryptoInfo and not android.media.MediaCodec.CryptoInfo.

fun registerOnBufferAvailableListener(
    listener: MediaCodecAdapter.OnBufferAvailableListener!
): Boolean

Registers a listener that will be called when an input or output buffer becomes available.

Returns false if listener was not successfully registered for callbacks.

fun release(): Unit

Releases the adapter and the underlying MediaCodec.

fun releaseOutputBuffer(index: Int, render: Boolean): Unit

Returns the buffer to the MediaCodec. If the MediaCodec was configured with an output surface, setting render to true will first send the buffer to the output surface. The surface will release the buffer back to the codec once it is no longer used/displayed.

fun releaseOutputBuffer(index: Int, renderTimeStampNs: Long): Unit

Updates the output buffer's surface timestamp and sends it to the MediaCodec to render it on the output surface. If the MediaCodec is not configured with an output surface, this call will simply return the buffer to the MediaCodec.

@RequiresApi(value = 23)
fun setOnFrameRenderedListener(
    listener: MediaCodecAdapter.OnFrameRenderedListener!,
    handler: Handler!
): Unit

Registers a callback to be invoked when an output frame is rendered on the output surface.

@RequiresApi(value = 23)
fun setOutputSurface(surface: Surface!): Unit

Dynamically sets the output surface of a MediaCodec.

fun setParameters(params: Bundle!): Unit

Communicate additional parameter changes to the MediaCodec instance.

fun setVideoScalingMode(@C.VideoScalingMode scalingMode: Int): Unit

Specifies the scaling mode to use, if a surface was specified when the codec was created.