From: Tomasz Figa <tfiga@chromium.org>
To: Alexandre Courbot <acourbot@chromium.org>
Cc: Stanimir Varbanov <stanimir.varbanov@linaro.org>,
Linux Media Mailing List <linux-media@vger.kernel.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hverkuil@xs4all.nl>,
LKML <linux-kernel@vger.kernel.org>,
linux-arm-msm <linux-arm-msm@vger.kernel.org>,
Vikash Garodia <vgarodia@codeaurora.org>,
Malathi Gottam <mgottam@codeaurora.org>
Subject: Re: [PATCH 00/10] Venus stateful Codec API
Date: Mon, 28 Jan 2019 13:30:32 +0900 [thread overview]
Message-ID: <CAAFQd5Cj=xpY_seGmJ5NM2H6_Jf=5AxE6XcL3DPqRH9SnPXjhQ@mail.gmail.com> (raw)
In-Reply-To: <CAPBb6MWoJ1EPFZkNtChqkzLZkzirOP1umhQa8-_vkErvWyfVFQ@mail.gmail.com>
On Mon, Jan 28, 2019 at 1:16 PM Alexandre Courbot <acourbot@chromium.org> wrote:
>
> On Fri, Jan 25, 2019 at 7:35 PM Stanimir Varbanov
> <stanimir.varbanov@linaro.org> wrote:
> >
> > Hi Alex,
> >
> > On 1/25/19 7:34 AM, Alexandre Courbot wrote:
> > > On Thu, Jan 24, 2019 at 7:13 PM Stanimir Varbanov
> > > <stanimir.varbanov@linaro.org> wrote:
> > >>
> > >> Hi Alex,
> > >>
> > >> Thank you for review and valuable comments!
> > >>
> > >> On 1/24/19 10:43 AM, Alexandre Courbot wrote:
> > >>> Hi Stanimir,
> > >>>
> > >>> On Fri, Jan 18, 2019 at 1:20 AM Stanimir Varbanov
> > >>> <stanimir.varbanov@linaro.org> wrote:
> > >>>>
> > >>>> Hello,
> > >>>>
> > >>>> This aims to make Venus decoder compliant with stateful Codec API [1].
> > >>>> The patches 1-9 are preparation for the cherry on the cake patch 10
> > >>>> which implements the decoder state machine similar to the one in the
> > >>>> stateful codec API documentation.
> > >>>
> > >>> Thanks *a lot* for this series! I am still stress-testing it against
> > >>> the Chromium decoder tests, but so far it has been rock-solid. I have
> > >>> a few inline comments on some patches ; I will also want to review the
> > >>> state machine more thoroughly after refreshing my mind on Tomasz doc,
> > >>> but this looks pretty promising already.
> > >>
> > >> I'm expecting problems with ResetAfterFirstConfigInfo. I don't know why
> > >> but this test case is very dirty. I'd appreciate any help to decipher
> > >> what is the sequence of v4l2 calls made by this unittest case.
> > >
> > > I did not see any issue with ResetAfterFirstConfigInfo, however
> > > ResourceExhaustion seems to hang once in a while. But I could already
> > > see this behavior with the older patchset.
> >
> > Is it hangs badly?
>
> It just stops processing, no crash. I need to investigate more closely.
>
> > >
> > > In any case I plan to thoroughly review the state machine. I agree it
> > > is a bit complex to grasp.
> >
> > yes the state machine isn't simple and I blamed Tomasz many times for
> > that :)
Don't shoot the messenger! I'm just carrying what hardware and
userspace made for us. ;)
>
> If I feel inspired I may try to extract the useful part of your patch
> into a framework that we can use everywhere. :) We don't want every
> driver to reimplement this complex state machine and introduce new
> bugs every time.
Yeah, we definitely need such a framework, especially given how the
m2m framework is overused for handling codecs.
Best regards,
Tomasz
prev parent reply other threads:[~2019-01-28 4:38 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-17 16:19 [PATCH 00/10] Venus stateful Codec API Stanimir Varbanov
2019-01-17 16:19 ` [PATCH 01/10] venus: hfi_cmds: add more not-implemented properties Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 02/10] venus: helpers: fix dynamic buffer mode for v4 Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 03/10] venus: helpers: export few helper functions Stanimir Varbanov
2019-01-24 8:43 ` Alexandre Courbot
2019-01-24 8:48 ` Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 04/10] venus: hfi: add type argument to hfi flush function Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 05/10] venus: hfi: export few HFI functions Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 06/10] venus: hfi: return an error if session_init is already called Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 07/10] venus: helpers: add three more helper functions Stanimir Varbanov
2019-01-24 8:43 ` Alexandre Courbot
2019-01-24 8:54 ` Stanimir Varbanov
2019-01-25 5:47 ` Alexandre Courbot
2019-01-17 16:20 ` [PATCH 08/10] venus: vdec_ctrls: get real minimum buffers for capture Stanimir Varbanov
2019-01-24 8:43 ` Alexandre Courbot
2019-01-24 9:59 ` Stanimir Varbanov
2019-01-17 16:20 ` [PATCH 09/10] venus: vdec: allow bigger sizeimage set by clients Stanimir Varbanov
2019-01-24 8:43 ` Alexandre Courbot
2019-01-24 10:05 ` Stanimir Varbanov
2019-01-25 5:36 ` Alexandre Courbot
2019-01-17 16:20 ` [PATCH 10/10] venus: dec: make decoder compliant with stateful codec API Stanimir Varbanov
2019-01-21 11:20 ` mgottam
2019-01-21 11:29 ` mgottam
2019-01-24 10:24 ` Stanimir Varbanov
2019-01-24 8:44 ` Alexandre Courbot
2019-01-24 12:34 ` Stanimir Varbanov
2019-01-25 5:44 ` Alexandre Courbot
2019-01-25 7:59 ` Tomasz Figa
2019-01-25 10:25 ` Stanimir Varbanov
2019-01-28 7:38 ` Tomasz Figa
2019-01-28 16:28 ` Stanimir Varbanov
2019-01-29 8:24 ` Tomasz Figa
2019-01-30 3:18 ` Nicolas Dufresne
2019-01-30 3:38 ` Tomasz Figa
2019-01-30 4:21 ` Nicolas Dufresne
2019-01-30 6:17 ` Tomasz Figa
2019-01-30 15:32 ` Nicolas Dufresne
2019-01-31 12:42 ` Philipp Zabel
2019-01-31 13:34 ` Tomasz Figa
2019-01-31 15:18 ` Nicolas Dufresne
2019-02-05 6:26 ` Tomasz Figa
2019-02-05 9:00 ` Hans Verkuil
2019-02-05 9:31 ` Tomasz Figa
2019-02-05 10:35 ` Hans Verkuil
2019-02-07 7:33 ` Tomasz Figa
2019-02-14 2:43 ` Tomasz Figa
2019-02-14 16:19 ` Nicolas Dufresne
2019-04-09 9:59 ` Tomasz Figa
2019-04-09 16:30 ` Nicolas Dufresne
2019-04-10 2:32 ` Tomasz Figa
2019-02-15 13:44 ` Hans Verkuil
2019-02-15 16:27 ` Nicolas Dufresne
2019-02-15 16:40 ` Hans Verkuil
2019-04-24 12:15 ` Stanimir Varbanov
2019-04-24 12:39 ` Tomasz Figa
2019-05-20 14:47 ` Stanimir Varbanov
2019-05-21 9:09 ` Tomasz Figa
2019-05-21 12:27 ` Hans Verkuil
2019-05-27 3:51 ` Tomasz Figa
2019-05-27 7:39 ` Hans Verkuil
2019-05-27 8:18 ` Tomasz Figa
2019-05-31 8:01 ` Stanimir Varbanov
2019-05-31 13:53 ` Nicolas Dufresne
2019-06-03 7:25 ` Hans Verkuil
2019-06-03 7:30 ` Tomasz Figa
2019-01-24 8:43 ` [PATCH 00/10] Venus stateful Codec API Alexandre Courbot
2019-01-24 10:12 ` Stanimir Varbanov
2019-01-25 5:34 ` Alexandre Courbot
2019-01-25 10:35 ` Stanimir Varbanov
2019-01-28 4:16 ` Alexandre Courbot
2019-01-28 4:30 ` Tomasz Figa [this message]
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