linux-kernel - Re: [PATCH v7 5/9] media: venus: vdec: add video decoder files

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Message-ID: <1490581130.25828.1.camel@ndufresne.ca>
Date:   Sun, 26 Mar 2017 22:18:50 -0400
From:   Nicolas Dufresne <nicolas@...fresne.ca>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>,
        Hans Verkuil <hverkuil@...all.nl>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Stephen Boyd <sboyd@...eaurora.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v7 5/9] media: venus: vdec: add video decoder files

Le dimanche 26 mars 2017 à 00:30 +0200, Stanimir Varbanov a écrit :
> > > +            vb->planes[0].data_offset = data_offset;
> > > +            vb->timestamp = timestamp_us * NSEC_PER_USEC;
> > > +            vbuf->sequence = inst->sequence++;
> > 
> > timestamp and sequence are only set for CAPTURE, not OUTPUT. Is
> > that correct?
> 
> Correct. I can add sequence for the OUTPUT queue too, but I have no idea 
> how that sequence is used by userspace.

Neither GStreamer or Chromium seems to use it. What does that number
means for a m2m driver ? Does it really means something ?

Nicolas
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