All Known Implementing Classes:

SynchronousMediaCodecAdapter
```
public interface MediaCodecAdapter
```
Abstracts MediaCodec operations.
MediaCodecAdapter offers a common interface to interact with a MediaCodec regardless of the mode the MediaCodec is operating in.

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`MediaCodecAdapter.Configuration`	Configuration parameters for a `MediaCodecAdapter`.
`static interface`	`MediaCodecAdapter.Factory`	A factory for `MediaCodecAdapter` instances.
`static interface`	`MediaCodecAdapter.OnFrameRenderedListener`	Listener to be called when an output frame has rendered on the output surface.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`int`	`dequeueInputBufferIndex()`	Returns the next available input buffer index from the underlying `MediaCodec` or `MediaCodec.INFO_TRY_AGAIN_LATER` if no such buffer exists.
`int`	`dequeueOutputBufferIndex(MediaCodec.BufferInfo bufferInfo)`	Returns the next available output buffer index from the underlying `MediaCodec`.
`void`	`flush()`	Flushes the adapter and the underlying `MediaCodec`.
`ByteBuffer`	`getInputBuffer(int index)`	Returns a writable ByteBuffer object for a dequeued input buffer index.
`PersistableBundle`	`getMetrics()`	Returns metrics data about the current codec instance.
`ByteBuffer`	`getOutputBuffer(int index)`	Returns a read-only ByteBuffer for a dequeued output buffer index.
`MediaFormat`	`getOutputFormat()`	Gets the `MediaFormat` that was output from the `MediaCodec`.
`boolean`	`needsReconfiguration()`	Whether the adapter needs to be reconfigured before it is used.
`void`	`queueInputBuffer(int index, int offset, int size, long presentationTimeUs, int flags)`	Submit an input buffer for decoding.
`void`	`queueSecureInputBuffer(int index, int offset, CryptoInfo info, long presentationTimeUs, int flags)`	Submit an input buffer that is potentially encrypted for decoding.
`void`	`release()`	Releases the adapter and the underlying `MediaCodec`.
`void`	`releaseOutputBuffer(int index, boolean render)`	Returns the buffer to the `MediaCodec`.
`void`	`releaseOutputBuffer(int index, long renderTimeStampNs)`	Updates the output buffer's surface timestamp and sends it to the `MediaCodec` to render it on the output surface.
`void`	`setOnFrameRenderedListener(MediaCodecAdapter.OnFrameRenderedListener listener, Handler handler)`	Registers a callback to be invoked when an output frame is rendered on the output surface.
`void`	`setOutputSurface(Surface surface)`	Dynamically sets the output surface of a `MediaCodec`.
`void`	`setParameters(Bundle params)`	Communicate additional parameter changes to the `MediaCodec` instance.
`void`	`setVideoScalingMode(@com.google.android.exoplayer2.C.VideoScalingMode int scalingMode)`	Specifies the scaling mode to use, if a surface was specified when the codec was created.

- Method Detail
  - dequeueInputBufferIndex
```
int dequeueInputBufferIndex()
```
    Returns the next available input buffer index from the underlying MediaCodec or MediaCodec.INFO_TRY_AGAIN_LATER if no such buffer exists.
    
    Throws:
    
    IllegalStateException - If the underlying MediaCodec raised an error.
  - dequeueOutputBufferIndex
```
int dequeueOutputBufferIndex(MediaCodec.BufferInfo bufferInfo)
```
    Returns the next available output buffer index from the underlying MediaCodec. If the next available output is a MediaFormat change, it will return MediaCodec.INFO_OUTPUT_FORMAT_CHANGED and you should call getOutputFormat() to get the format. If there is no available output, this method will return MediaCodec.INFO_TRY_AGAIN_LATER.
    
    Throws:
    
    IllegalStateException - If the underlying MediaCodec raised an error.
  - getOutputFormat
```
MediaFormat getOutputFormat()
```
    Gets the MediaFormat that was output from the MediaCodec.
    Call this method if a previous call to dequeueOutputBufferIndex(android.media.MediaCodec.BufferInfo) returned MediaCodec.INFO_OUTPUT_FORMAT_CHANGED.
  - getInputBuffer
```
@Nullable
ByteBuffer getInputBuffer(int index)
```
    Returns a writable ByteBuffer object for a dequeued input buffer index.
    
    See Also:
    
    MediaCodec.getInputBuffer(int)
  - getOutputBuffer
```
@Nullable
ByteBuffer getOutputBuffer(int index)
```
    Returns a read-only ByteBuffer for a dequeued output buffer index.
    
    See Also:
    
    MediaCodec.getOutputBuffer(int)
  - queueInputBuffer
```
void queueInputBuffer(int index,
                      int offset,
                      int size,
                      long presentationTimeUs,
                      int flags)
```
    Submit an input buffer for decoding.
    The index must be an input buffer index that has been obtained from a previous call to dequeueInputBufferIndex().
    
    See Also:
    
    MediaCodec.queueInputBuffer(int, int, int, long, int)
  - queueSecureInputBuffer
```
void queueSecureInputBuffer(int index,
                            int offset,
                            CryptoInfo info,
                            long presentationTimeUs,
                            int flags)
```
    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 MediaCodec.queueSecureInputBuffer(int, int, android.media.MediaCodec.CryptoInfo, long, int), with the difference that info is of type CryptoInfo and not MediaCodec.CryptoInfo.
    
    See Also:
    
    MediaCodec.queueSecureInputBuffer(int, int, android.media.MediaCodec.CryptoInfo, long, int)
  - releaseOutputBuffer
```
void releaseOutputBuffer(int index,
                         boolean render)
```
    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.
    
    See Also:
    
    MediaCodec.releaseOutputBuffer(int, boolean)
  - releaseOutputBuffer
```
@RequiresApi(21)
void releaseOutputBuffer(int index,
                         long renderTimeStampNs)
```
    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.
    
    See Also:
    
    MediaCodec.releaseOutputBuffer(int, long)
  - flush
```
void flush()
```
    Flushes the adapter and the underlying MediaCodec.
  - release
```
void release()
```
    Releases the adapter and the underlying MediaCodec.
  - setOnFrameRenderedListener
```
@RequiresApi(23)
void setOnFrameRenderedListener(MediaCodecAdapter.OnFrameRenderedListener listener,
                                Handler handler)
```
    Registers a callback to be invoked when an output frame is rendered on the output surface.
    
    See Also:
    
    MediaCodec.setOnFrameRenderedListener(android.media.MediaCodec.OnFrameRenderedListener, android.os.Handler)
  - setOutputSurface
```
@RequiresApi(23)
void setOutputSurface(Surface surface)
```
    Dynamically sets the output surface of a MediaCodec.
    
    See Also:
    
    MediaCodec.setOutputSurface(Surface)
  - setParameters
```
@RequiresApi(19)
void setParameters(Bundle params)
```
    Communicate additional parameter changes to the MediaCodec instance.
    
    See Also:
    
    MediaCodec.setParameters(Bundle)
  - setVideoScalingMode
```
void setVideoScalingMode(@VideoScalingMode
                         @com.google.android.exoplayer2.C.VideoScalingMode int scalingMode)
```
    Specifies the scaling mode to use, if a surface was specified when the codec was created.
    
    See Also:
    
    MediaCodec.setVideoScalingMode(int)
  - needsReconfiguration
```
boolean needsReconfiguration()
```
    Whether the adapter needs to be reconfigured before it is used.
  - getMetrics
```
@RequiresApi(26)
PersistableBundle getMetrics()
```
    Returns metrics data about the current codec instance.
    
    See Also:
    
    MediaCodec.getMetrics()

Interface MediaCodecAdapter

Nested Class Summary

Method Summary

Method Detail

dequeueInputBufferIndex

dequeueOutputBufferIndex

getOutputFormat

getInputBuffer

getOutputBuffer

queueInputBuffer

queueSecureInputBuffer

releaseOutputBuffer

releaseOutputBuffer

flush

release

setOnFrameRenderedListener

setOutputSurface

setParameters

setVideoScalingMode

needsReconfiguration

getMetrics