CapturingDecoderFactory.java
/*
* Copyright 2022 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 android.view.Surface;
import androidx.annotation.Nullable;
import androidx.media3.common.Format;
/** A forwarding {@link Codec.DecoderFactory} that captures details about the codecs created. */
/* package */ final class CapturingDecoderFactory implements Codec.DecoderFactory {
private final Codec.DecoderFactory decoderFactory;
@Nullable private String audioDecoderName;
@Nullable private String videoDecoderName;
public CapturingDecoderFactory(Codec.DecoderFactory decoderFactory) {
this.decoderFactory = decoderFactory;
}
@Override
public Codec createForAudioDecoding(Format format) throws ExportException {
Codec audioDecoder = decoderFactory.createForAudioDecoding(format);
audioDecoderName = audioDecoder.getName();
return audioDecoder;
}
@Override
public Codec createForVideoDecoding(
Format format, Surface outputSurface, boolean requestSdrToneMapping) throws ExportException {
Codec videoDecoder =
decoderFactory.createForVideoDecoding(format, outputSurface, requestSdrToneMapping);
videoDecoderName = videoDecoder.getName();
return videoDecoder;
}
/**
* Returns the name of the last audio {@linkplain Codec decoder} created, or {@code null} if none
* were created.
*/
@Nullable
public String getAudioDecoderName() {
return audioDecoderName;
}
/**
* Returns the name of the last video {@linkplain Codec decoder} created, or {@code null} if none
* were created.
*/
@Nullable
public String getVideoDecoderName() {
return videoDecoderName;
}
}