From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E80FC30100C; Mon, 10 Nov 2025 13:59:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762783199; cv=none; b=kKmL2sUJQNOojImdZzPp0krsixlTia3COajUXwwXEt0V5KdTsyYINO5GDuvyyMGAYAnVeAytTXj42FAko4t+EBm3KWbDlhoa2KNs1u5wRMYLsQlbH/A5GVa5zF1C4r4QZO3RdMe1U3tkZEhBHQbLAzFsonYmhLTINLr7zYM1EHc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1762783199; c=relaxed/simple; bh=qJtfTB6dKNpE8AehNrMASe8zC/+tcIHh6icQjRotbW8=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=YSbiJl0bkGqtGjhNPTuHW/Zer8MqgC97o1LZqJZyw6QAIXffGgFBdb6gWK8k5QvaPNq2GmdVJi5woYxGKhdWndsokSdqMnsyeyXDXqFhsgjzxWwd60y2+JyRG1yGekgRRjJMKyrfQfseFqcgdD0y7/sT9hhpOJJks/igvmkn0f0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=kSWe0ZhV; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="kSWe0ZhV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1762783196; bh=qJtfTB6dKNpE8AehNrMASe8zC/+tcIHh6icQjRotbW8=; h=Subject:From:To:Cc:Date:In-Reply-To:References:From; b=kSWe0ZhVZ1JJ0kWlWxkYx8z8Iswss68wh1HGE3FJ7nWd8uJ3lo/RxnVlkHzfVaOBt aiXtpR1Mn4FOtL+YFF9WJC7a6zQO8FpY2z5sSZhuX0+kg/8vfAHEKS1626y9mjaMP+ pUMyaSWSyW4mVPj+XL8NSLdPQJgurmlb4nIUUyWWkmajsvakl6fuEZBJVUJl92XQxe 2YEazds4JW8D760HmGQSUji3LxTLErKFpVlhVIbppMnYVg0y/PQb9Nj7Kwa8n0hQVq E8E2cPf5voywoL5CZ6GrNPky8vlDfygyyen14JzpkstvBmBc508kGtrU5vCWZzoyEW i897etuJXb1XA== Received: from [IPv6:2606:6d00:11:ef24::c41] (unknown [IPv6:2606:6d00:11:ef24::c41]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits)) (No client certificate requested) (Authenticated sender: nicolas) by bali.collaboradmins.com (Postfix) with ESMTPSA id B5A7A17E110D; Mon, 10 Nov 2025 14:59:54 +0100 (CET) Message-ID: <2a458127834680ea8e4bc74639536a20494f1357.camel@collabora.com> Subject: Re: [PATCH v6 1/5] media: uapi: videodev2: Add support for AV1 stateful decoder From: Nicolas Dufresne To: Deepa Guthyappa Madivalara , Mauro Carvalho Chehab , Vikash Garodia , Dikshita Agarwal , Abhinav Kumar , Bryan O'Donoghue Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, kernel test robot , Bryan O'Donoghue Date: Mon, 10 Nov 2025 08:59:53 -0500 In-Reply-To: <20251109-av1d_stateful_v3-v6-1-4a9bde86025a@oss.qualcomm.com> References: <20251109-av1d_stateful_v3-v6-0-4a9bde86025a@oss.qualcomm.com> <20251109-av1d_stateful_v3-v6-1-4a9bde86025a@oss.qualcomm.com> Autocrypt: addr=nicolas.dufresne@collabora.com; prefer-encrypt=mutual; keydata=mDMEaCN2ixYJKwYBBAHaRw8BAQdAM0EHepTful3JOIzcPv6ekHOenE1u0vDG1gdHFrChD /e0J05pY29sYXMgRHVmcmVzbmUgPG5pY29sYXNAbmR1ZnJlc25lLmNhPoicBBMWCgBEAhsDBQsJCA cCAiICBhUKCQgLAgQWAgMBAh4HAheABQkJZfd1FiEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrjo CGQEACgkQ2UGUUSlgcvQlQwD/RjpU1SZYcKG6pnfnQ8ivgtTkGDRUJ8gP3fK7+XUjRNIA/iXfhXMN abIWxO2oCXKf3TdD7aQ4070KO6zSxIcxgNQFtDFOaWNvbGFzIER1ZnJlc25lIDxuaWNvbGFzLmR1Z nJlc25lQGNvbGxhYm9yYS5jb20+iJkEExYKAEECGwMFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4 AWIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaCyyxgUJCWX3dQAKCRDZQZRRKWBy9ARJAP96pFmLffZ smBUpkyVBfFAf+zq6BJt769R0al3kHvUKdgD9G7KAHuioxD2v6SX7idpIazjzx8b8rfzwTWyOQWHC AAS0LU5pY29sYXMgRHVmcmVzbmUgPG5pY29sYXMuZHVmcmVzbmVAZ21haWwuY29tPoiZBBMWCgBBF iEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrGYCGwMFCQll93UFCwkIBwICIgIGFQoJCAsCBBYCAw ECHgcCF4AACgkQ2UGUUSlgcvRObgD/YnQjfi4+L8f4fI7p1pPMTwRTcaRdy6aqkKEmKsCArzQBAK8 bRLv9QjuqsE6oQZra/RB4widZPvphs78H0P6NmpIJ Organization: Collabora Canada Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-E0cDht+osNO+gG5376Xk" User-Agent: Evolution 3.58.1 (3.58.1-1.fc43) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 --=-E0cDht+osNO+gG5376Xk Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Le dimanche 09 novembre 2025 =C3=A0 21:05 -0800, Deepa Guthyappa Madivalara= a =C3=A9crit=C2=A0: > Introduce a new pixel format, V4L2_PIX_FMT_AV1, to the > Video4Linux2(V4L2) API. This format is intended for AV1 > bitstreams in stateful decoding/encoding workflows. > The fourcc code 'AV10' is used to distinguish > this format from the existing V4L2_PIX_FMT_AV1_FRAME, > which is used for stateless AV1 decoder implementation. >=20 > Reviewed-by: Bryan O'Donoghue > Reviewed-by: Nicolas Dufresne > Signed-off-by: Deepa Guthyappa Madivalara > --- > =C2=A0Documentation/userspace-api/media/v4l/pixfmt-compressed.rst | 8 +++= +++++ > =C2=A0include/uapi/linux/videodev2.h=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0= =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 | 1 + > =C2=A02 files changed, 9 insertions(+) >=20 > diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst = b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst > index c7efb0465db6480fe35be8557728c196e0e530f4..6ca63f35b801b8aae142b69ed= dfaa549a5568a3f 100644 > --- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst > +++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst > @@ -275,6 +275,14 @@ Compressed Formats > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 of macroblocks to decode= a full corresponding frame to the matching > =C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 capture buffer. > =C2=A0 > +=C2=A0=C2=A0=C2=A0 * .. _V4L2-PIX-FMT-AV1: > + > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - ``V4L2_PIX_FMT_AV1`` > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - 'AV01' > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 - AV1 compressed video frame. This format= is adapted for implementing AV1 > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 pipeline. The decoder impleme= nts stateful video decoder and expects one > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 Temporal Unit per buffer from= OBU Stream. This should be something like, "one temporal unit per buffer in OBU stream format." Nicolas > +=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 The encoder generates one Tem= poral Unit per buffer. > =C2=A0.. raw:: latex > =C2=A0 > =C2=A0=C2=A0=C2=A0=C2=A0 \normalsize > diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev= 2.h > index becd08fdbddb857f8f2bf205d2164dc6e20e80b2..cf0b71bbe0f9d397e1e6c8843= 3a0fc3ba11fb947 100644 > --- a/include/uapi/linux/videodev2.h > +++ b/include/uapi/linux/videodev2.h > @@ -775,6 +775,7 @@ struct v4l2_pix_format { > =C2=A0#define V4L2_PIX_FMT_H264_SLICE v4l2_fourcc('S', '2', '6', '4') /* = H264 parsed slices */ > =C2=A0#define V4L2_PIX_FMT_HEVC_SLICE v4l2_fourcc('S', '2', '6', '5') /* = HEVC parsed slices */ > =C2=A0#define V4L2_PIX_FMT_AV1_FRAME v4l2_fourcc('A', 'V', '1', 'F') /* A= V1 parsed frame */ > +#define V4L2_PIX_FMT_AV1=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 v4l2_fourcc('A', = 'V', '0', '1') /* AV1 */ > =C2=A0#define V4L2_PIX_FMT_SPK=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 v4l2_fourcc(= 'S', 'P', 'K', '0') /* Sorenson Spark */ > =C2=A0#define V4L2_PIX_FMT_RV30=C2=A0=C2=A0=C2=A0=C2=A0 v4l2_fourcc('R', = 'V', '3', '0') /* RealVideo 8 */ > =C2=A0#define V4L2_PIX_FMT_RV40=C2=A0=C2=A0=C2=A0=C2=A0 v4l2_fourcc('R', = 'V', '4', '0') /* RealVideo 9 & 10 */ --=-E0cDht+osNO+gG5376Xk Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaRHv2QAKCRDZQZRRKWBy 9MqfAP46f/rLcGFo2yviFJH3Kgrqf19WrdRSGu3todGKLFYYWwEAv2VHUW+q1dze YvdMWOzC/wMZlsgYMvYSS+93lHotsgo= =sdkT -----END PGP SIGNATURE----- --=-E0cDht+osNO+gG5376Xk--