From patchwork Sun Jan 16 18:55:56 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Osipenko X-Patchwork-Id: 12714659 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 30235C433EF for ; Sun, 16 Jan 2022 18:56:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236046AbiAPS4q (ORCPT ); Sun, 16 Jan 2022 13:56:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60062 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236028AbiAPS4m (ORCPT ); Sun, 16 Jan 2022 13:56:42 -0500 Received: from mail-lf1-x136.google.com (mail-lf1-x136.google.com [IPv6:2a00:1450:4864:20::136]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E5993C061574; Sun, 16 Jan 2022 10:56:41 -0800 (PST) Received: by mail-lf1-x136.google.com with SMTP id e3so46718685lfc.9; Sun, 16 Jan 2022 10:56:41 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=E7przyJ74L+AMDtXI8Jcieq0A93wliGwhbvxNvoTD3A=; b=JklcGAPkoV7myZdRwAogQa5AhJkzvVQuYb0qTOs5AAhnOotdpB+P+taD/7ataky29+ gl/IcfW/CW46sx+2xdRXQ/nrRdaPPfpquOgz8D8CxmSghxH+doqGESxgm15n7rdq3LeG yMpiKAmvauteFZ9D40y0S24V61WbThsd0pgnIjl/dz0K5M74l1pMxtZ0cEkT4DEd99oG 7kG6dYl28Ins1Lm+aSTd7p5iRQiM1uykgVXV8FQ2gtEre6PMOZiiQFu6fpGjriyL8SV3 fJiO+hJN3w9ClN9buv+LbmL34axzeAbNgNb83DHsmArLKVzrrVjx8Iwc229iGXL56SNX GY/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=E7przyJ74L+AMDtXI8Jcieq0A93wliGwhbvxNvoTD3A=; b=P0sJaORIgSjdqHQ/zNX8eideeim9d1b62vHsxGrvgIBum2XdX+gZCUfVnsdueoNnhl A8uCZES+qlgsg6Bagu4LBTNax6pelMX0VaTyOJyGSDQNIA86LgB2nrDSs/pJY6AtOLzU t5ep4m+iu8Mow01bGYNNatD7Fi6WrrXLyBAStQMaETbWtQUoQHTm9G+K2EGfTbmbPB46 5T3qwHb5HAsuy5sUgP7JIxIauv5spxAHRyYZzSugbNyu4CVnRqJdets8Zfd7+XyTm8Or 0qr+2s7oslkV5u3CTan2/alSFo8JfAi6l1p8AZxleVukN8iNtap0gprx3HieAZ1ckb5I G6KQ== X-Gm-Message-State: AOAM532HbtFTdGUP0A+/IfWJeJkQpOABJ5ePEHWIp1HmqMhXVp9YWcyR nP/Bz3zGpqG7v/T5dFe+A+g= X-Google-Smtp-Source: ABdhPJx7UYqC3EGtAmGSFKE1yE4ONaTrL9rAQW/RZkbm/ERCynn/s/vb0T7QLpblskFLGMLFYUR7gg== X-Received: by 2002:a05:6512:2521:: with SMTP id be33mr11449331lfb.276.1642359400266; Sun, 16 Jan 2022 10:56:40 -0800 (PST) Received: from localhost.localdomain (46-138-227-157.dynamic.spd-mgts.ru. [46.138.227.157]) by smtp.gmail.com with ESMTPSA id j2sm1179597lfe.18.2022.01.16.10.56.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 16 Jan 2022 10:56:39 -0800 (PST) From: Dmitry Osipenko To: Thierry Reding , Jonathan Hunter , Mauro Carvalho Chehab , Hans Verkuil , Nicolas Dufresne , Ezequiel Garcia Cc: linux-media@vger.kernel.org, linux-staging@lists.linux.dev, linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 3/3] media: docs: dev-stateless-decoder: Document frame type flags Date: Sun, 16 Jan 2022 21:55:56 +0300 Message-Id: <20220116185556.10657-4-digetx@gmail.com> X-Mailer: git-send-email 2.33.1 In-Reply-To: <20220116185556.10657-1-digetx@gmail.com> References: <20220116185556.10657-1-digetx@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Document that frame type flags must be set for the coded buffer. Decoders, like NVIDIA Tegra h264 decoder for example, won't work properly without these flags. Signed-off-by: Dmitry Osipenko --- .../userspace-api/media/v4l/dev-stateless-decoder.rst | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst b/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst index 4a26646eeec5..845f4481d34f 100644 --- a/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst +++ b/Documentation/userspace-api/media/v4l/dev-stateless-decoder.rst @@ -271,6 +271,9 @@ A typical frame would thus be decoded using the following sequence: we are not sure that the current decode request is the last one needed to produce a fully decoded frame, then ``V4L2_BUF_FLAG_M2M_HOLD_CAPTURE_BUF`` must also be set. + ``V4L2_BUF_FLAG_KEYFRAME``, ``V4L2_BUF_FLAG_PFRAME`` and + ``V4L2_BUF_FLAG_BFRAME`` must be set if relevant to the coded + format. ``request_fd`` must be set to the file descriptor of the decoding request.