linux-kernel - Re: [PATCH] media: hantro: HEVC: unconditionnaly set pps_{cb/cr}_qp

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Date:   Mon, 25 Apr 2022 17:28:12 +0200
From:   Benjamin Gaignard <benjamin.gaignard@...labora.com>
To:     Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Cc:     Philipp Zabel <p.zabel@...gutronix.de>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        linux-media <linux-media@...r.kernel.org>,
        "open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
        "open list:STAGING SUBSYSTEM" <linux-staging@...ts.linux.dev>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        jon@...ocrew.net, Adam Ford <aford173@...il.com>,
        Collabora Kernel ML <kernel@...labora.com>
Subject: Re: [PATCH] media: hantro: HEVC: unconditionnaly set
 pps_{cb/cr}_qp_offset values


Le 25/04/2022 à 14:12, Ezequiel Garcia a écrit :
> On Mon, Apr 25, 2022 at 7:53 AM Benjamin Gaignard
> <benjamin.gaignard@...labora.com> wrote:
>> Always set pps_cb_qp_offset and pps_cr_qp_offset values in Hantro/G2
>> register whatever is V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT
>> flag value.
>> This fix a couple of tests in fluster.
>>
> Which tests?

CAINIT_G_SHARP_3 test.
Hantro proprietary stack (g2dec tool) does the same.

Regards,
Benjamin

>
> Thanks,
> Ezequiel
>
>> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
>> ---
>>   drivers/staging/media/hantro/hantro_g2_hevc_dec.c | 9 ++-------
>>   1 file changed, 2 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
>> index 2c8eb0720db8..bb512389c1a5 100644
>> --- a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
>> +++ b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
>> @@ -194,13 +194,8 @@ static void set_params(struct hantro_ctx *ctx)
>>                  hantro_reg_write(vpu, &g2_max_cu_qpd_depth, 0);
>>          }
>>
>> -       if (pps->flags & V4L2_HEVC_PPS_FLAG_PPS_SLICE_CHROMA_QP_OFFSETS_PRESENT) {
>> -               hantro_reg_write(vpu, &g2_cb_qp_offset, pps->pps_cb_qp_offset);
>> -               hantro_reg_write(vpu, &g2_cr_qp_offset, pps->pps_cr_qp_offset);
>> -       } else {
>> -               hantro_reg_write(vpu, &g2_cb_qp_offset, 0);
>> -               hantro_reg_write(vpu, &g2_cr_qp_offset, 0);
>> -       }
>> +       hantro_reg_write(vpu, &g2_cb_qp_offset, pps->pps_cb_qp_offset);
>> +       hantro_reg_write(vpu, &g2_cr_qp_offset, pps->pps_cr_qp_offset);
>>
>>          hantro_reg_write(vpu, &g2_filt_offset_beta, pps->pps_beta_offset_div2);
>>          hantro_reg_write(vpu, &g2_filt_offset_tc, pps->pps_tc_offset_div2);
>> --
>> 2.32.0
>>