linux-kernel - Re: [PATCH 2/5] media: v4l2: Add description for V4L2_PIX_FMT_AV1 in v4l_fill

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Message-ID: <ad9c79bd-b3ea-4dac-96c5-f264eaf91dcc@oss.qualcomm.com>
Date: Thu, 2 Oct 2025 15:32:54 -0700
From: Deepa Guthyappa Madivalara <deepa.madivalara@....qualcomm.com>
To: Nicolas Dufresne <nicolas@...fresne.ca>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Vikash Garodia <vikash.garodia@....qualcomm.com>,
        Dikshita Agarwal <dikshita.agarwal@....qualcomm.com>,
        Abhinav Kumar <abhinav.kumar@...ux.dev>,
        Bryan O'Donoghue <bod@...nel.org>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH 2/5] media: v4l2: Add description for V4L2_PIX_FMT_AV1 in
 v4l_fill_fmtdesc()


On 10/2/2025 12:43 PM, Nicolas Dufresne wrote:
> Le mercredi 01 octobre 2025 à 12:00 -0700, Deepa Guthyappa Madivalara a écrit :
>> Add a descriptive string for the AV1 pixel format to v4l_fill_fmtdesc(),
>> enabling proper reporting of AV1 support via VIDIOC_ENUM_FMT.
>>
>> Signed-off-by: Deepa Guthyappa Madivalara <deepa.madivalara@....qualcomm.com>
>> ---
>>   drivers/media/v4l2-core/v4l2-ioctl.c | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-
>> core/v4l2-ioctl.c
>> index
>> 01cf52c3ea33e1a01e1b306036ba4e57ef5c95d0..d3ee7736b74b0f277d3208782e3ac3282eca
>> 1e6b 100644
>> --- a/drivers/media/v4l2-core/v4l2-ioctl.c
>> +++ b/drivers/media/v4l2-core/v4l2-ioctl.c
>> @@ -1542,6 +1542,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt)
>>   		case V4L2_PIX_FMT_QC10C:	descr = "QCOM Compressed 10-
>> bit Format"; break;
>>   		case V4L2_PIX_FMT_AJPG:		descr = "Aspeed
>> JPEG"; break;
>>   		case V4L2_PIX_FMT_AV1_FRAME:	descr = "AV1 Frame"; break;
>> +		case V4L2_PIX_FMT_AV1:		descr = "AV1"; break;
> Perhaps "AV1 OBU stream", so its clear its no Annex B ?

Sure, makes it more clear. I will update this as well in the next patch.

Regards,
deepa

>>   		case V4L2_PIX_FMT_MT2110T:	descr = "Mediatek 10bit Tile
>> Mode"; break;
>>   		case V4L2_PIX_FMT_MT2110R:	descr = "Mediatek 10bit
>> Raster Mode"; break;
>>   		case V4L2_PIX_FMT_HEXTILE:	descr = "Hextile Compressed
>> Format"; break;