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https://issues.apache.org/jira/browse/OPENMEETINGS-494?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13539914#comment-13539914
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Mikael Kurula commented on OPENMEETINGS-494:
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Thanks for responding! Thanks for taking the time to discuss this issue; the
recording is the critical issue for me whether I should take OM into
professional use or not.
Now I'm very confused. I've asked about this issue on the users list, and I got
the impression that recording on highest quality should yield output at 30 fps?
A frame rate of 2 fps is way too low for my application of OM. Why should the
OM admin or a teacher not be allowed to use a high frame rate? Bandwidth is not
a problem for us, but having decent quality recordings is a priority. (I teach
university-level mathematics over the internet and the students who can't
attend the sessions in realtime study the recordings. I imagine studying a
static video with me babbling is boring enough even if the quality is decent.)
In my recordings, I will also always show a window with a video of me talking
and pointing at stuff on a VGA beamer canvas, so the video will be there in the
recording.
I think no frames are missing when I record at High quality, then the frame
rate is at 2 fps and all frames are probably there because the video and the
audio stay in sync. I talked about missing frames regarding Very high quality,
because I thought the frames in the output video were displaying at the correct
speed, but with many frames missing. Do I now understand correctly that the
intended frame rate for Very high quality is also 2 fps and that the bug is
that the output video displays the frames faster than at 2 fps?
> Recording gives frame rate of 2 fps
> -----------------------------------
>
> Key: OPENMEETINGS-494
> URL: https://issues.apache.org/jira/browse/OPENMEETINGS-494
> Project: Openmeetings
> Issue Type: Bug
> Affects Versions: 2.1 Apache Incubator Release
> Environment: CentOS 6 and Ubuntu 12.04 servers, Macbook pro and
> Windows 7 clients. Flash 11.5.502.13x, Java 1.6.something on both server and
> client
> Reporter: Mikael Kurula
> Priority: Critical
>
> When I record with any quality except for "very high quality", I get a frame
> rate of only about 2 fps. When I use the "very high quality", my video plays
> back at a higher frame rate, but it seems a lot of frames are missing, so in
> practice the video plays back approximately 5-10 times too fast.
> I am using recommended versions of both swftools and ffmpeg, but I don't
> think it's an ffmpeg issue, since already the raw .flv stream fed to ffmpeg
> has broken frame rate.
> This effectively prevents me from using openmeetings in my work.
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