zqz/platform-external-webrtc
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Android: Support externally aligned timestamps

Browse Source 
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}
This commit is contained in:
Magnus Jedvert
2018-11-15 12:07:32 +01:00
committed by Commit Bot
parent 2277ac6718
commit 9514071500
18 changed files with 298 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
sdk/android/native_unittests/org/webrtc/JavaVideoSourceTestHelper.java
View File

@ -24,8 +24,9 @@ public class JavaVideoSourceTestHelper {
}
@CalledByNative
public static void deliverFrame(int width, int height, int rotation, CapturerObserver observer) {
public static void deliverFrame(
int width, int height, int rotation, long timestampNs, CapturerObserver observer) {
observer.onFrameCaptured(
new VideoFrame(JavaI420Buffer.allocate(width, height), rotation, 0 /* timestampNs= */));
new VideoFrame(JavaI420Buffer.allocate(width, height), rotation, timestampNs));
}
}