From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) (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 4766855B0; Mon, 28 Feb 2022 14:08:52 +0000 (UTC) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:82d4:230a:70ff:cde0]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id 4C0441F43A9E; Mon, 28 Feb 2022 14:08:50 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1646057330; bh=6/122CrrXGkaEvjNyFFzovVJHPMmmG+ACKQdeB5Rk6s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mZag4G9u2+r1edxdWjWwYewFFoPmIoxS7z7vaGf9lM0VRoBdwJlLXOGoRAC1HymvB zkmbKhciH8GimoasePvkOkBcG827u/YuGML/N/Ucmw1npBcyb4adbfx5OhTDOquWLN BL8+FmvDx1haeTqIopPuLBA8zRoDzmi0Wa5Nb0Dbpujd5K3gIpqy1UVC7fSbbVXmwR wd57KcrAgbobQoaoZW9XC1jAdpOO9PEFJJYDZYOm6c5H1Yb/krIcZVC5M/ZrtTV63D 40avhblsZPhTpVk37SJKtAj1xHAcLduTmW8PHweEupNN8g3juyaCpajuBSlka3liA3 37vIq8Vs9ZI9w== From: Benjamin Gaignard To: mchehab@kernel.org, ezequiel@vanguardiasur.com.ar, p.zabel@pengutronix.de, gregkh@linuxfoundation.org, mripard@kernel.org, paul.kocialkowski@bootlin.com, wens@csie.org, jernej.skrabec@gmail.com, jonas@kwiboo.se, nicolas@ndufresne.ca Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, kernel@collabora.com, knaerzche@gmail.com, jc@kynesim.co.uk, Benjamin Gaignard Subject: [PATCH v4 07/15] media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a dynamic array Date: Mon, 28 Feb 2022 15:08:30 +0100 Message-Id: <20220228140838.622021-8-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220228140838.622021-1-benjamin.gaignard@collabora.com> References: <20220228140838.622021-1-benjamin.gaignard@collabora.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Make explicit that V4L2_CID_STATELESS_HEVC_SLICE_PARAMS control is a dynamic array control type. Some drivers may be able to receive multiple slices in one control to improve decoding performance. Signed-off-by: Benjamin Gaignard --- Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst | 2 ++ include/media/hevc-ctrls.h | 3 +++ 2 files changed, 5 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst index ac13a3eb85c2..91c80964f82f 100644 --- a/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst +++ b/Documentation/userspace-api/media/v4l/ext-ctrls-codec.rst @@ -2964,6 +2964,8 @@ enum v4l2_mpeg_video_hevc_size_of_length_field - These bitstream parameters are defined according to :ref:`hevc`. They are described in section 7.4.7 "General slice segment header semantics" of the specification. + This control is a dynamically sized 1-dimensional array, + V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it. .. c:type:: v4l2_ctrl_hevc_slice_params diff --git a/include/media/hevc-ctrls.h b/include/media/hevc-ctrls.h index 149384ca4c84..a22720f5a33b 100644 --- a/include/media/hevc-ctrls.h +++ b/include/media/hevc-ctrls.h @@ -300,6 +300,9 @@ struct v4l2_hevc_pred_weight_table { /** * v4l2_ctrl_hevc_slice_params - HEVC slice parameters * + * This control is a dynamically sized 1-dimensional array, + * V4L2_CTRL_FLAG_DYNAMIC_ARRAY flag must be set when using it. + * * @bit_size: size (in bits) of the current slice data * @data_bit_offset: offset (in bits) to the video data in the current slice data * @nal_unit_type: specifies the coding type of the slice (B, P or I) -- 2.32.0