[FFmpeg-devel] [PATCH] avcodec: only warn about hwaccel with frame threads

Ronald S. Bultje rsbultje at gmail.com
Sat Jan 23 14:45:51 CET 2016


On Sat, Jan 23, 2016 at 8:26 AM, Andreas Cadhalpun <
andreas.cadhalpun at googlemail.com> wrote:

> On 23.01.2016 14:10, Ronald S. Bultje wrote:
> > You guys need a mediator, I hear JB is very good at that. Neither of you
> is
> > listening at all to what the other person is saying.
> >
> > Can you two figure out what is working, what is not, under what
> conditions,
> > and document that in a way that is understandable to dumb people like
> me? I
> > bet you that after that, the solution will be trivial. It can't be hard
> to
> > test (for both of you) on a set of systems which hardware accels work and
> > which don't (under ffmpeg/ffplay or vlc or mpv or whatnot) with/without
> > threading and which codecs. These are technical tests where we should all
> > be able to agree on the results.
> As I said VLC works with hwaccel+threads for VDPAU and VA-API.

What setup? OS, hardware, particularly video card. What versions of
relevant software (drivers, kernel, ffmpeg, vlc)? What was
active_thread_type set to in the decoder, how many threads?

Yes, all of this matters.

So far, nobody could provide a way to reproduce any problem caused by this
> combination.

I'm looking for stuff that I can reproduce, not stuff that you can not.
Both of you keep shouting from one side of the room to the other without
trying to actually converge to a point that might somehow be mutually
acceptable. I'm getting very grumbly here.


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