[Bug 98278] Corrupted videos VA-API HW encoding radeonsi

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Mon Oct 17 11:01:38 UTC 2016


https://bugs.freedesktop.org/show_bug.cgi?id=98278

--- Comment #14 from Andy Furniss <adf.lists at gmail.com> ---
(In reply to Andy Furniss from comment #13)

> While OMX may appear to work with cbr IME it doesn't work properly = you
> don't end up getting the rate you asked for other than by luck.

While testing with just one sample is probably not the best thing - I just
revisited this and it does seem to work as long as bitrate isn't too high max
85M.

Though I have vague memories of thinking it was OK before and then it went
inconsistent.

It could be because OMX does less/different setup of the h/w compared to vaapi
WRT rate control/hrd stuff (I have see this by adding printfs) and when testing
vaapi and omx some stated get carried over between the two.

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