PassthroughSamplePipeline.java
/*
* Copyright 2021 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.media3.transformer;
import androidx.annotation.Nullable;
import androidx.media3.common.Format;
import androidx.media3.decoder.DecoderInputBuffer;
/** Pipeline that passes through the samples without any re-encoding or transformation. */
/* package */ final class PassthroughSamplePipeline extends BaseSamplePipeline {
private final DecoderInputBuffer buffer;
private final Format format;
private boolean hasPendingBuffer;
public PassthroughSamplePipeline(
Format format,
long streamOffsetUs,
long streamStartPositionUs,
TransformationRequest transformationRequest,
MuxerWrapper muxerWrapper,
FallbackListener fallbackListener) {
super(
format,
streamOffsetUs,
streamStartPositionUs,
transformationRequest.flattenForSlowMotion,
muxerWrapper);
this.format = format;
buffer = new DecoderInputBuffer(DecoderInputBuffer.BUFFER_REPLACEMENT_MODE_DIRECT);
fallbackListener.onTransformationRequestFinalized(transformationRequest);
}
@Override
public void release() {}
@Override
@Nullable
protected DecoderInputBuffer dequeueInputBufferInternal() {
return hasPendingBuffer ? null : buffer;
}
@Override
protected void queueInputBufferInternal() {
if (buffer.data != null && buffer.data.hasRemaining()) {
hasPendingBuffer = true;
}
}
@Override
protected boolean processDataUpToMuxer() {
return false;
}
@Override
protected Format getMuxerInputFormat() {
return format;
}
@Override
@Nullable
protected DecoderInputBuffer getMuxerInputBuffer() {
return hasPendingBuffer ? buffer : null;
}
@Override
protected void releaseMuxerInputBuffer() {
buffer.clear();
hasPendingBuffer = false;
}
@Override
protected boolean isMuxerInputEnded() {
return buffer.isEndOfStream();
}
}