[Bug 99029] VCE VAAPI segfault using ffmpeg

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Thu May 11 14:03:41 UTC 2017


https://bugs.freedesktop.org/show_bug.cgi?id=99029

--- Comment #5 from Alex Deucher <alexdeucher at gmail.com> ---
I'm not too familiar with VAAPI, but for transcoding, you really need efficient
pipelining between the decode and the encode.  If there are CPU copies in the
middle, performance won't be great.  We generally recommend using gstreamer
with OpenMax using tunneling so that there are no extra copies between the
decode and encode stages of the transcode.  I'm not sure if VAAPI supports
something like this.

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