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From: Tomasz Figa <tfiga@chromium.org>
To: sgorle@codeaurora.org
Cc: Stanimir Varbanov <stanimir.varbanov@linaro.org>,
	Hans Verkuil <hverkuil@xs4all.nl>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Linux Media Mailing List <linux-media@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	linux-arm-msm <linux-arm-msm@vger.kernel.org>,
	Alexandre Courbot <acourbot@chromium.org>,
	vgarodia@codeaurora.org
Subject: Re: [PATCH v1 4/5] media: venus: video decoder drop frames handling
Date: Wed, 14 Nov 2018 20:04:48 +0900	[thread overview]
Message-ID: <CAAFQd5BoP1jbzLam7X1TOxEMNCkVDTkjNWbBkcn3zdiScy0HjA@mail.gmail.com> (raw)
In-Reply-To: <1538222432-25894-5-git-send-email-sgorle@codeaurora.org>

On Sat, Sep 29, 2018 at 9:01 PM Srinu Gorle <sgorle@codeaurora.org> wrote:
>
> - when drop frame flag received from venus h/w, reset buffer
>   parameters and update v4l2 buffer flags as error buffer.
>
> Signed-off-by: Srinu Gorle <sgorle@codeaurora.org>
> ---
>  drivers/media/platform/qcom/venus/vdec.c | 6 ++++++
>  1 file changed, 6 insertions(+)
>
> diff --git a/drivers/media/platform/qcom/venus/vdec.c b/drivers/media/platform/qcom/venus/vdec.c
> index 0035cf2..311f209 100644
> --- a/drivers/media/platform/qcom/venus/vdec.c
> +++ b/drivers/media/platform/qcom/venus/vdec.c
> @@ -991,6 +991,12 @@ static void vdec_buf_done(struct venus_inst *inst, unsigned int buf_type,
>         if (hfi_flags & HFI_BUFFERFLAG_DATACORRUPT)
>                 state = VB2_BUF_STATE_ERROR;
>
> +       if (hfi_flags & HFI_BUFFERFLAG_DROP_FRAME) {
> +               vb->planes[0].bytesused = 0;
> +               vb->timestamp = 0;
> +               state = VB2_BUF_STATE_ERROR;
> +       }

What does this HFI_BUFFERFLAG_DROP_FRAME flag mean? When would it
happen? I assume it applies only to CAPTURE buffers, since for OUTPUT
buffers you must not set the bytesuses/timestamp yourself, right? Is
the buffer guaranteed to have no decoded frame inside or the frame
could be there, but incomplete/corrupted?

Best regards,
Tomasz

  reply	other threads:[~2018-11-14 11:05 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-29 12:00 [PATCH v1 0/5] Venus - Decode reconfig sequence Srinu Gorle
2018-09-29 12:00 ` [PATCH v1 1/5] media: venus: handle video decoder resolution change Srinu Gorle
2018-11-14 10:50   ` Tomasz Figa
2018-09-29 12:00 ` [PATCH v1 2/5] media: venus: dynamically configure codec type Srinu Gorle
2018-11-14 10:56   ` Tomasz Figa
2018-09-29 12:00 ` [PATCH v1 3/5] media: venus: do not destroy video session during queue setup Srinu Gorle
2018-11-09  9:59   ` Stanimir Varbanov
2018-11-14 11:02     ` Tomasz Figa
2018-09-29 12:00 ` [PATCH v1 4/5] media: venus: video decoder drop frames handling Srinu Gorle
2018-11-14 11:04   ` Tomasz Figa [this message]
2018-09-29 12:00 ` [PATCH v1 5/5] media: venus: update number of bytes used field properly for EOS frames Srinu Gorle
2018-11-08 10:16   ` Stanimir Varbanov
2018-11-12  8:12     ` Alexandre Courbot
2018-11-12 12:20       ` Stanimir Varbanov
2018-11-13  9:31         ` Alexandre Courbot

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