bigbluebutton-Github/record-and-playback/core
Calvin Walton c44d94b498 Workaround video sync issue due to red5 timestamp offset
Red5 sometimes writes webcam video files with a large offset in the
video frame offsets, sometimes up to 30 or even 60 seconds. However,
the start event in the events.xml file corresponds to the time at
which red5 received the first keyframe (recorded frame) in the video.

The end result is that the video will sometimes appear to be
delayed (out of sync) in the processed recording.

The correction is simple: We're already reading video metadata,
including the timestamp of the first frame, so we just have to apply
a correction during video processing to undo the frame timestamp
offsets in the video file.
2018-02-12 10:22:36 -08:00
..
features Remove a few matterhorn references that were missed. 2016-09-02 17:45:10 -04:00
lib Workaround video sync issue due to red5 timestamp offset 2018-02-12 10:22:36 -08:00
resources/raw - extract metadata from events.xml and generate index.html in publish dir for simple playback 2011-05-24 18:16:54 -04:00
scripts Don't delete video events in the sanity script. 2017-12-14 14:43:31 -05:00
spec Rework a bunch of the code to avoid repeatedly reparsing the events.xml 2017-11-08 10:12:25 -05:00
systemd Moved the recording systemd scripts into the core directory 2017-03-23 10:36:10 -05:00
Gemfile Update gems for security fixes, remove some unused. 2017-11-17 14:36:24 -05:00
Gemfile.lock Update gems for security fixes, remove some unused. 2017-11-17 14:36:24 -05:00