org.webrtc.FramerateBitrateAdjuster Maven / Gradle / Ivy
/*
* 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;
/**
* BitrateAdjuster that adjusts the bitrate to compensate for changes in the framerate. Used with
* hardware codecs that assume the framerate never changes.
*/
public class FramerateBitrateAdjuster extends BaseBitrateAdjuster {
private static final int INITIAL_FPS = 30;
@Override
public void setTargets(int targetBitrateBps, int targetFps) {
if (this.targetFps == 0) {
// Framerate-based bitrate adjustment always initializes to the same framerate.
targetFps = INITIAL_FPS;
}
super.setTargets(targetBitrateBps, targetFps);
this.targetBitrateBps = this.targetBitrateBps * INITIAL_FPS / this.targetFps;
}
@Override
public int getCodecConfigFramerate() {
return INITIAL_FPS;
}
}