com.otaliastudios.transcoder.transcode

Class AudioTrackTranscoder

java.lang.Object

com.otaliastudios.transcoder.transcode.BaseTrackTranscoder

com.otaliastudios.transcoder.transcode.AudioTrackTranscoder

All Implemented Interfaces:

TrackTranscoder

public class AudioTrackTranscoder
extends BaseTrackTranscoder

Constructor Summary

Constructors

Constructor and Description
AudioTrackTranscoder(DataSource dataSource, DataSink dataSink, TimeInterpolator timeInterpolator, AudioStretcher audioStretcher, AudioResampler audioResampler)

Method Summary

Modifier and Type	Method and Description
protected void	onCodecsStarted(android.media.MediaFormat inputFormat, android.media.MediaFormat outputFormat, android.media.MediaCodec decoder, android.media.MediaCodec encoder) Called when both codecs have been started with the given formats.
protected void	onDecoderOutputFormatChanged(android.media.MediaCodec decoder, android.media.MediaFormat format) Called when the decoder has defined its actual output format.
protected void	onDrainDecoder(android.media.MediaCodec decoder, int bufferIndex, java.nio.ByteBuffer bufferData, long presentationTimeUs, boolean endOfStream) Called to drain the decoder.
protected boolean	onFeedEncoder(android.media.MediaCodec encoder, MediaCodecBuffers encoderBuffers, long timeoutUs) Called to feed the encoder with processed data.

Methods inherited from class com.otaliastudios.transcoder.transcode.BaseTrackTranscoder

isFinished, onConfigureDecoder, onConfigureEncoder, onEncoderOutputFormatChanged, onStartDecoder, onStartEncoder, release, setUp, transcode

Methods inherited from class java.lang.Object

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

Constructor Detail

AudioTrackTranscoder

public AudioTrackTranscoder(@NonNull
                            DataSource dataSource,
                            @NonNull
                            DataSink dataSink,
                            @NonNull
                            TimeInterpolator timeInterpolator,
                            @NonNull
                            AudioStretcher audioStretcher,
                            @NonNull
                            AudioResampler audioResampler)

Method Detail

onCodecsStarted

protected void onCodecsStarted(@NonNull
                               android.media.MediaFormat inputFormat,
                               @NonNull
                               android.media.MediaFormat outputFormat,
                               @NonNull
                               android.media.MediaCodec decoder,
                               @NonNull
                               android.media.MediaCodec encoder)

Description copied from class: BaseTrackTranscoder

Called when both codecs have been started with the given formats.

Overrides:

onCodecsStarted in class BaseTrackTranscoder

Parameters:

inputFormat - input format

outputFormat - output format

decoder - decoder

encoder - encoder

onFeedEncoder

protected boolean onFeedEncoder(@NonNull
                                android.media.MediaCodec encoder,
                                @NonNull
                                MediaCodecBuffers encoderBuffers,
                                long timeoutUs)

Description copied from class: BaseTrackTranscoder

Called to feed the encoder with processed data.

Specified by:

onFeedEncoder in class BaseTrackTranscoder

Parameters:

encoder - the encoder

timeoutUs - a timeout for this op

Returns:

true if we want to keep working

onDecoderOutputFormatChanged

protected void onDecoderOutputFormatChanged(@NonNull
                                            android.media.MediaCodec decoder,
                                            @NonNull
                                            android.media.MediaFormat format)

Description copied from class: BaseTrackTranscoder

Called when the decoder has defined its actual output format.

Overrides:

onDecoderOutputFormatChanged in class BaseTrackTranscoder

format - format

onDrainDecoder

protected void onDrainDecoder(@NonNull
                              android.media.MediaCodec decoder,
                              int bufferIndex,
                              @NonNull
                              java.nio.ByteBuffer bufferData,
                              long presentationTimeUs,
                              boolean endOfStream)

Description copied from class: BaseTrackTranscoder

Called to drain the decoder. Implementors are required to call MediaCodec.releaseOutputBuffer(int, boolean) with the given bufferIndex at some point.

Specified by:

onDrainDecoder in class BaseTrackTranscoder

Parameters:

decoder - the decoder

bufferIndex - the buffer index to be released

bufferData - the buffer data

presentationTimeUs - frame timestamp

endOfStream - whether we are in end of stream