[FFmpeg-devel] [PATCH 4/4] libavcodec/dev: v4l2: add support for v4l2 mem2mem codecs

Michael Niedermayer michael at niedermayer.cc
Fri Jul 28 01:45:26 EEST 2017


On Thu, Jul 27, 2017 at 08:44:37AM +0200, Jorge Ramirez wrote:
> On 07/26/2017 04:04 PM, Michael Niedermayer wrote:
> >On Mon, Jul 24, 2017 at 09:08:49PM +0200, Jorge Ramirez-Ortiz wrote:
> >>From: Alexis Ballier <aballier at gentoo.org>
> >>
> >>This patchset enhances Alexis Ballier's original patch and validates
> >>it using Qualcomm's Venus hardware (driver recently landed upstream
> >>[1]).
> >>
> >>This has been tested on Qualcomm's DragonBoard 410c and 820c
> >>
> >>ffplay tested video decoders:
> >>- h264,
> >>- vp8
> >>- mpeg4
> >>
> >>Some of the changes introduced:
> >>- v4l2: some cleanup of the code.
> >>- v4l2: some cleaup before upstreaming.
> >>- v4l2: follow the new decode api.
> >>- v4l2: fix display size for NV12 output pool.
> >>- v4l2: handle EOS.
> >>- v4l2: fix vp8 and mpeg4 decoding.
> >>- v4l2: generate EOF on dequeue errors.
> >>- v4l2: h264_mp4toannexb filtering.
> >>
> >>[1] https://lwn.net/Articles/697956/
> >this with the other patches breaks build
> 
> Hi Michael,
> 
> Could you provide some details of your build environment and kernel please?

this should have been a ubuntu 14.04 LTS with 3.13.0-125-generic which
should be the default for ubuntu 14-04


> What is the oldest kernel that you have to build on?

whatever the oldest kernel used by any supported distribution is


[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Dictatorship naturally arises out of democracy, and the most aggravated
form of tyranny and slavery out of the most extreme liberty. -- Plato
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