From nobody Fri Nov 22 01:35:04 2024 Received: from mx07-00178001.pphosted.com (mx07-00178001.pphosted.com [185.132.182.106]) (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 6C6601A3A94; Wed, 20 Nov 2024 11:04:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.132.182.106 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732100672; cv=none; b=LwTo32eXOysTk58QhiG/9YgO5S7tCRjpxzw7+33bYKBkvxtUvuINHVyfvIpDwt3ajxT8XKomlRDUWBLRq4zWmW8nF4eLE0f4+S0/lb2BZi867Xa7cx5BOqLnRpRy7VQAIIVh+sVIibrsQWNz0FQz4eT8Y1p4wzl+8FZxyMNHfPE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732100672; c=relaxed/simple; bh=c00YpZrOvk8h5EfnVSx/hdWDNSHEG442lrQ5D5CFujY=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=kGEY5ditcnST5FeuMfUgVISMBOaU5c6AGGyl7b3zjsh9dv8B/LyXaemmCiovP6r6+Qvtz1k/sOj/dHRdySvMnnOt/6GijXSnEU3W66/1IgeoD+3l7FCUovEHLdKeYu+sjscFhNS05R9KViEhkzGyr6/gBU4oJxHqcynleUl8Q98= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com; spf=pass smtp.mailfrom=foss.st.com; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b=EuKa8k0+; arc=none smtp.client-ip=185.132.182.106 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=foss.st.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=foss.st.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=foss.st.com header.i=@foss.st.com header.b="EuKa8k0+" Received: from pps.filterd (m0369458.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4AK8d7jw032500; Wed, 20 Nov 2024 12:04:09 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= /Dbvvpr5F1AcVwc5RPbRkCNMcMQ9ZOjtxIpGdKqkWAw=; b=EuKa8k0+0VFa76c3 qJIa14P2ahIEGKT0qAQQADwp7jdtyjmUMZQoICq1+YQSrqf4ibMHBm9WU1D/3feF oaPWDMNPlUBzTfzJRSykeT13w6vktBqSZuqdcuYqPLU30ycri/vKVs+vn5nANtoM bCQHuVq0oq9yXXK6dw2pQ8bd0UBi1TQYWKZhifN9stnw82NbrfvLXKhX2RhOa1vN plNVCYY2TATMDAyICizBA4RUyP1Jz4mAr/+kWjOIwilmqWi/atRA5MUk08zxS3S+ 9zaJwQIYvHk75AXCjP8xYn+7oSz6o/WKi+vFyQv1GnPwrDo/PpOxJgbzGIsAPPdO jotKew== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 42y5u3y765-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 20 Nov 2024 12:04:09 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 5B4C440076; Wed, 20 Nov 2024 12:02:47 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id 2E26A278711; Wed, 20 Nov 2024 12:01:35 +0100 (CET) Received: from localhost (10.48.86.208) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.37; Wed, 20 Nov 2024 12:01:34 +0100 From: Hugues Fruchet To: Mauro Carvalho Chehab , Ezequiel Garcia , Philipp Zabel , Hans Verkuil , Fritz Koenig , Sebastian Fricke , Daniel Almeida , Andrzej Pietrasiewicz , Nicolas Dufresne , Benjamin Gaignard , , , , CC: Hugues Fruchet Subject: [PATCH v2 1/3] media: uapi: add WebP uAPI Date: Wed, 20 Nov 2024 12:01:03 +0100 Message-ID: <20241120110105.244413-2-hugues.fruchet@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20241120110105.244413-1-hugues.fruchet@foss.st.com> References: <20241120110105.244413-1-hugues.fruchet@foss.st.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-ClientProxiedBy: EQNCAS1NODE3.st.com (10.75.129.80) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 Content-Type: text/plain; charset="utf-8" This patch adds the WebP picture decoding kernel uAPI. This design is based on currently available VP8 API implementation and aims to support the development of WebP stateless video codecs on Linux. Signed-off-by: Hugues Fruchet Reviewed-by: Nicolas Dufresne --- Documentation/userspace-api/media/v4l/biblio.rst | 9 +++++++++ .../userspace-api/media/v4l/pixfmt-compressed.rst | 15 +++++++++++++++ drivers/media/v4l2-core/v4l2-ioctl.c | 1 + include/uapi/linux/videodev2.h | 1 + 4 files changed, 26 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/biblio.rst b/Documentati= on/userspace-api/media/v4l/biblio.rst index 35674eeae20d..df3e963fc54f 100644 --- a/Documentation/userspace-api/media/v4l/biblio.rst +++ b/Documentation/userspace-api/media/v4l/biblio.rst @@ -447,3 +447,12 @@ AV1 :title: AV1 Bitstream & Decoding Process Specification =20 :author: Peter de Rivaz, Argon Design Ltd, Jack Haughton, Argon Design = Ltd + +.. _webp: + +WEBP +=3D=3D=3D=3D + +:title: WEBP picture Bitstream & Decoding Process Specification + +:author: Google (https://developers.google.com/speed/webp) diff --git a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst b/= Documentation/userspace-api/media/v4l/pixfmt-compressed.rst index 806ed73ac474..e664e70b0619 100644 --- a/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst +++ b/Documentation/userspace-api/media/v4l/pixfmt-compressed.rst @@ -169,6 +169,21 @@ Compressed Formats this pixel format. The output buffer must contain the appropriate number of macroblocks to decode a full corresponding frame to the matching capture buffer. + * .. _V4L2-PIX-FMT-WEBP-FRAME: + + - ``V4L2_PIX_FMT_WEBP_FRAME`` + - 'WEBP' + - WEBP VP8 parsed frame, excluding WEBP RIFF header, keeping only th= e VP8 + bistream including the frame header, as extracted from the container. + This format is adapted for stateless video decoders that implement a + WEBP pipeline with the :ref:`stateless_decoder`. + Metadata associated with the frame to decode is required to be passed + through the ``V4L2_CID_STATELESS_VP8_FRAME`` control. + See the :ref:`associated Codec Control IDs `. + Exactly one output and one capture buffer must be provided for use with + this pixel format. The output buffer must contain the appropriate number + of macroblocks to decode a full corresponding frame to the matching + capture buffer. =20 * .. _V4L2-PIX-FMT-VP9: =20 diff --git a/drivers/media/v4l2-core/v4l2-ioctl.c b/drivers/media/v4l2-core= /v4l2-ioctl.c index 0304daa8471d..e2ff03d0d773 100644 --- a/drivers/media/v4l2-core/v4l2-ioctl.c +++ b/drivers/media/v4l2-core/v4l2-ioctl.c @@ -1501,6 +1501,7 @@ static void v4l_fill_fmtdesc(struct v4l2_fmtdesc *fmt) case V4L2_PIX_FMT_VC1_ANNEX_L: descr =3D "VC-1 (SMPTE 412M Annex L)"; br= eak; case V4L2_PIX_FMT_VP8: descr =3D "VP8"; break; case V4L2_PIX_FMT_VP8_FRAME: descr =3D "VP8 Frame"; break; + case V4L2_PIX_FMT_WEBP_FRAME: descr =3D "WEBP VP8 Frame"; break; case V4L2_PIX_FMT_VP9: descr =3D "VP9"; break; case V4L2_PIX_FMT_VP9_FRAME: descr =3D "VP9 Frame"; break; case V4L2_PIX_FMT_HEVC: descr =3D "HEVC"; break; /* aka H.265 */ diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h index e7c4dce39007..09fff269e852 100644 --- a/include/uapi/linux/videodev2.h +++ b/include/uapi/linux/videodev2.h @@ -757,6 +757,7 @@ struct v4l2_pix_format { #define V4L2_PIX_FMT_VC1_ANNEX_L v4l2_fourcc('V', 'C', '1', 'L') /* SMPTE = 421M Annex L compliant stream */ #define V4L2_PIX_FMT_VP8 v4l2_fourcc('V', 'P', '8', '0') /* VP8 */ #define V4L2_PIX_FMT_VP8_FRAME v4l2_fourcc('V', 'P', '8', 'F') /* VP8 pars= ed frame */ +#define V4L2_PIX_FMT_WEBP_FRAME v4l2_fourcc('W', 'B', 'P', 'F') /* WEBP VP= 8 parsed frame */ #define V4L2_PIX_FMT_VP9 v4l2_fourcc('V', 'P', '9', '0') /* VP9 */ #define V4L2_PIX_FMT_VP9_FRAME v4l2_fourcc('V', 'P', '9', 'F') /* VP9 pars= ed frame */ #define V4L2_PIX_FMT_HEVC v4l2_fourcc('H', 'E', 'V', 'C') /* HEVC aka = H.265 */ --=20 2.25.1