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/*
* Copyright 2017 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
package org.webrtc;
import androidx.annotation.Nullable;
/** Factory for creating VideoEncoders. */
public interface VideoEncoderFactory {
public interface VideoEncoderSelector {
/** Called with the VideoCodecInfo of the currently used encoder. */
@CalledByNative("VideoEncoderSelector") void onCurrentEncoder(VideoCodecInfo info);
/**
* Called with the current available bitrate. Returns null if the encoder selector prefers to
* keep the current encoder or a VideoCodecInfo if a new encoder is preferred.
*/
@Nullable @CalledByNative("VideoEncoderSelector") VideoCodecInfo onAvailableBitrate(int kbps);
/**
* Called every time the encoder input resolution change. Returns null if the encoder selector
* prefers to keep the current encoder or a VideoCodecInfo if a new encoder is preferred.
*/
@Nullable
@CalledByNative("VideoEncoderSelector")
default VideoCodecInfo onResolutionChange(int widht, int height) {
return null;
}
/**
* Called when the currently used encoder signal itself as broken. Returns null if the encoder
* selector prefers to keep the current encoder or a VideoCodecInfo if a new encoder is
* preferred.
*/
@Nullable @CalledByNative("VideoEncoderSelector") VideoCodecInfo onEncoderBroken();
}
/** Creates an encoder for the given video codec. */
@Nullable @CalledByNative VideoEncoder createEncoder(VideoCodecInfo info);
/**
* Enumerates the list of supported video codecs. This method will only be called once and the
* result will be cached.
*/
@CalledByNative VideoCodecInfo[] getSupportedCodecs();
/**
* Enumerates the list of supported video codecs that can also be tagged with
* implementation information. This method will only be called once and the
* result will be cached.
*/
@CalledByNative
default VideoCodecInfo[] getImplementations() {
return getSupportedCodecs();
}
/**
* Returns a VideoEncoderSelector if implemented by the VideoEncoderFactory,
* null otherwise.
*/
@CalledByNative
default VideoEncoderSelector getEncoderSelector() {
return null;
}
}