0bdb5dd0a9
Fixes target bitrate calculation for framerate based adjuster. Adds new API to bitrate adjuster - getCodecConfigFramerate() - that returns the FPS that should be passed to MediaCodec on initialization. Bug: b/73741487, cl/186656928 Change-Id: Ia4a5e99d302de67fbee0c132ab8e9392bc205b44 Reviewed-on: https://webrtc-review.googlesource.com/65162 Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Commit-Queue: Sami Kalliomäki <sakal@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22716}
36 lines
1.1 KiB
Java
36 lines
1.1 KiB
Java
/*
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* Copyright 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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package org.webrtc;
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/**
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* BitrateAdjuster that adjusts the bitrate to compensate for changes in the framerate. Used with
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* hardware codecs that assume the framerate never changes.
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*/
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class FramerateBitrateAdjuster extends BaseBitrateAdjuster {
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private static final int INITIAL_FPS = 30;
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@Override
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public void setTargets(int targetBitrateBps, int targetFps) {
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if (this.targetFps == 0) {
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// Framerate-based bitrate adjustment always initializes to the same framerate.
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targetFps = INITIAL_FPS;
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}
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super.setTargets(targetBitrateBps, targetFps);
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this.targetBitrateBps = this.targetBitrateBps * INITIAL_FPS / this.targetFps;
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}
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@Override
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public int getCodecConfigFramerate() {
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return INITIAL_FPS;
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}
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}
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