From patchwork Thu Apr 7 15:29:32 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 559858 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2EF8C433EF for ; Thu, 7 Apr 2022 15:30:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344832AbiDGPcD (ORCPT ); Thu, 7 Apr 2022 11:32:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344801AbiDGPb4 (ORCPT ); Thu, 7 Apr 2022 11:31:56 -0400 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 59E57BA0; Thu, 7 Apr 2022 08:29:56 -0700 (PDT) Received: from benjamin-XPS-13-9310.. (unknown [IPv6:2a01:e0a:120:3210:4da4:8da5:b6b4:93c]) (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 1DD9B1F467B8; Thu, 7 Apr 2022 16:29:54 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1649345394; bh=ymIiMAJbaeF9cGl/T5jWAuzOy/P/JnwVS/fgtmDvjeI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h2OS0AMnSoMqI/8QttgTCW8ZtQd4K3EJ+C3wUUTpli/vzpapVa+C80UOMbBfzlG36 m69DxCsjLJ8QhYgvozImUsZW1zJcas/ezQLufzkNlboL2Y094wfGAzEgBZXM5GjszD +qU9Wgi6RXx2vUXM8dCPh9ldRV034ncx/B4cMx4i0jQxUzZKmLpO307qpHWlm1BCPA y1pusJKsJwnmF5tsFPQ08eEgbh2moWJH4Z2eFyeSwwAEFLt3OC1VxIkPu+c07peTjV Fo9KMXUhZ5hUy5EjUG4WwfFgCmHPde3geKYRnsXFUOXs+hIbfpzWu2n+1mwMOPyaFO wFjQ9GBkYG5wg== From: Benjamin Gaignard To: mchehab@kernel.org, hverkuil@xs4all.nl, 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, samuel@sholland.org, nicolas.dufresne@collabora.com Cc: linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, sebastian.fricke@collabora.com, Benjamin Gaignard Subject: [PATCH v5 09/17] media: uapi: HEVC: Define V4L2_CID_STATELESS_HEVC_SLICE_PARAMS as a dynamic array Date: Thu, 7 Apr 2022 17:29:32 +0200 Message-Id: <20220407152940.738159-10-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220407152940.738159-1-benjamin.gaignard@collabora.com> References: <20220407152940.738159-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 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 7fcc6c2bac4c..1aaf3b84b584 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 96a9b71d1def..28049e1a8a07 100644 --- a/include/media/hevc-ctrls.h +++ b/include/media/hevc-ctrls.h @@ -314,6 +314,9 @@ 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)