
This support is needed if there is a big delay between the creation of frames and the time they are delivered to the WebRTC C++ layer in AndroidVideoTrackSource. This is the case if e.g. some heavy video processing is applied to the frames that takes a couple of hundred milliseconds. Currently, timestamps coming from Android video sources are aligned to rtc::TimeMicros() once they reach the WebRTC C++ layer in AndroidVideoTrackSource. At this point, we "forget" any latency that might occur before this point, and audio/video sync consequently suffers. Bug: webrtc:9991 Change-Id: I7b1aaca9a60a978b9195dd5e5eed4779a0055607 Reviewed-on: https://webrtc-review.googlesource.com/c/110783 Commit-Queue: Magnus Jedvert <magjed@webrtc.org> Reviewed-by: Sami Kalliomäki <sakal@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25654}
33 lines
1.0 KiB
Java
33 lines
1.0 KiB
Java
/*
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* Copyright (c) 2018 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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import org.webrtc.VideoCapturer;
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public class JavaVideoSourceTestHelper {
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@CalledByNative
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public static void startCapture(CapturerObserver observer, boolean success) {
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observer.onCapturerStarted(success);
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}
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@CalledByNative
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public static void stopCapture(CapturerObserver observer) {
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observer.onCapturerStopped();
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}
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@CalledByNative
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public static void deliverFrame(
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int width, int height, int rotation, long timestampNs, CapturerObserver observer) {
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observer.onFrameCaptured(
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new VideoFrame(JavaI420Buffer.allocate(width, height), rotation, timestampNs));
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}
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}
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