linux-kernel - Re: [PATCH v2 0/8] Venus stateful encoder compliance

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Message-ID: <CAMfZQbyZcS_fygWKBOr1xxUdfM-KsuTEt=VucPGf-JkM5+YzxA@mail.gmail.com>
Date:   Mon, 30 Nov 2020 09:28:00 -0800
From:   Fritz Koenig <frkoenig@...omium.org>
To:     Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:     Fritz Koenig <frkoenig@...omium.org>, linux-media@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Vikash Garodia <vgarodia@...eaurora.org>,
        Alexandre Courbot <acourbot@...omium.org>
Subject: Re: [PATCH v2 0/8] Venus stateful encoder compliance

On Sun, Nov 29, 2020 at 11:55 PM Stanimir Varbanov
<stanimir.varbanov@...aro.org> wrote:
>
> Hi Fritz,
>
> On 11/29/20 9:17 PM, Fritz Koenig wrote:
> > Since this patchset adds support for V4L2_ENC_CMD_STOP and
> > VENUS_ENC_STATE_ENCODING it should also add support for
> > VIDIOC_TRY_ENCODER_CMD so that those commands are discoverable.  I've
>
> 6/8 is adding it:
>
> +       .vidioc_try_encoder_cmd = v4l2_m2m_ioctl_try_encoder_cmd,
>

Ahh, thanks.  I need to work on my reading comprehension.

> > made an attempt at that here:
> > https://www.spinics.net/lists/linux-media/msg182319.html
> >
> > On Wed, Nov 11, 2020 at 6:38 AM Stanimir Varbanov
> > <stanimir.varbanov@...aro.org> wrote:
> >>
> >> Hello,
> >>
> >> Here is v2 of the subject patchset.
> >>
> >> The patchset starts with few small preparation and fix patches, 1/8 to 5/8.
> >> 6/8 is redesigned Dikshita's patch and 7/8 add Reset encoder state handling.
> >> The last 8/8 just delete not needed helper function.
> >>
> >> The major changes are:
> >>  * An attempt to reuse m2m helpers for drain and reset state in 6/8 and 7/8.
> >>  * Use null encoder buffer to signal end-of-stream in 6/8.
> >>
> >> Comments are welcome!
> >>
> >> regards,
> >> Stan
> >>
> >> Dikshita Agarwal (1):
> >>   venus: venc: add handling for VIDIOC_ENCODER_CMD
> >>
> >> Stanimir Varbanov (7):
> >>   venus: hfi: Use correct state in unload resources
> >>   venus: helpers: Add a new helper for buffer processing
> >>   venus: hfi_cmds: Allow null buffer address on encoder input
> >>   venus: helpers: Calculate properly compressed buffer size
> >>   venus: pm_helpers: Check instance state when calculate instance
> >>     frequency
> >>   venus: venc: Handle reset encoder state
> >>   venus: helpers: Delete unused stop streaming helper
> >>
> >>  drivers/media/platform/qcom/venus/helpers.c   |  65 ++---
> >>  drivers/media/platform/qcom/venus/helpers.h   |   2 +-
> >>  drivers/media/platform/qcom/venus/hfi.c       |   2 +-
> >>  drivers/media/platform/qcom/venus/hfi.h       |   1 -
> >>  drivers/media/platform/qcom/venus/hfi_cmds.c  |   2 +-
> >>  .../media/platform/qcom/venus/pm_helpers.c    |   3 +
> >>  drivers/media/platform/qcom/venus/venc.c      | 232 +++++++++++++++---
> >>  7 files changed, 226 insertions(+), 81 deletions(-)
> >>
> >> --
> >> 2.17.1
> >>
>
> --
> regards,
> Stan