MidiRenderer.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.decoder.midi;
import android.content.Context;
import androidx.annotation.Nullable;
import androidx.media3.common.C;
import androidx.media3.common.Format;
import androidx.media3.common.MimeTypes;
import androidx.media3.common.util.UnstableApi;
import androidx.media3.decoder.CryptoConfig;
import androidx.media3.exoplayer.audio.DecoderAudioRenderer;
/** Decodes and renders MIDI audio. */
@UnstableApi
public final class MidiRenderer extends DecoderAudioRenderer<MidiDecoder> {
private final Context context;
/** Creates the renderer instance. */
public MidiRenderer(Context context) {
this.context = context.getApplicationContext();
}
@Override
public String getName() {
return "MidiRenderer";
}
@Override
protected @C.FormatSupport int supportsFormatInternal(Format format) {
if (!MimeTypes.AUDIO_EXOPLAYER_MIDI.equals(format.sampleMimeType)) {
return C.FORMAT_UNSUPPORTED_TYPE;
}
if (!sinkSupportsFormat(MidiDecoder.getDecoderOutputFormat())) {
return C.FORMAT_UNSUPPORTED_SUBTYPE;
}
return C.FORMAT_HANDLED;
}
/**
* {@inheritDoc}
*
* @hide
*/
@Override
protected MidiDecoder createDecoder(Format format, @Nullable CryptoConfig cryptoConfig)
throws MidiDecoderException {
return new MidiDecoder(context);
}
/**
* {@inheritDoc}
*
* @hide
*/
@Override
protected Format getOutputFormat(MidiDecoder decoder) {
return MidiDecoder.getDecoderOutputFormat();
}
}