GlTextureProducer.java
/*
* Copyright 2023 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
*
* https://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.effect;
import android.opengl.GLES30;
import androidx.media3.common.GlTextureInfo;
import androidx.media3.common.VideoFrameProcessingException;
import androidx.media3.common.util.GlUtil;
import androidx.media3.common.util.UnstableApi;
/** A component that outputs {@linkplain GlTextureInfo OpenGL textures}. */
@UnstableApi
public interface GlTextureProducer {
/** Listener for texture output. */
interface Listener {
/**
* Called when a texture has been rendered to.
*
* @param textureProducer The {@link GlTextureProducer} that has rendered the texture.
* @param outputTexture The texture that has been rendered.
* @param presentationTimeUs The presentation time of the texture.
* @param syncObject A GL sync object that has been inserted into the GL command stream after
* the last write of the {@code outputTexture}. Value is 0 if and only if the {@link
* GLES30#glFenceSync} failed.
*/
void onTextureRendered(
GlTextureProducer textureProducer,
GlTextureInfo outputTexture,
long presentationTimeUs,
long syncObject)
throws VideoFrameProcessingException, GlUtil.GlException;
}
/** Releases the output texture at the given {@code presentationTimeUs}. */
void releaseOutputTexture(long presentationTimeUs);
}