From patchwork Mon Aug 29 14:07:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anton Khirnov X-Patchwork-Id: 37557 Delivered-To: ffmpegpatchwork2@gmail.com Received: by 2002:a05:6a20:139a:b0:8f:1db5:eae2 with SMTP id w26csp1967035pzh; Mon, 29 Aug 2022 07:07:43 -0700 (PDT) X-Google-Smtp-Source: AA6agR75o4CDO0ewh/Lc4aCQMuD+0J0ROWf6hMEphlTn3tdxNsu07tIyR/bgWwjrOwmIRnif5Lub X-Received: by 2002:a05:6402:540f:b0:440:d9a4:aebf with SMTP id ev15-20020a056402540f00b00440d9a4aebfmr16611490edb.196.1661782063663; Mon, 29 Aug 2022 07:07:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1661782063; cv=none; d=google.com; s=arc-20160816; b=SAZJnVPDIktxtI3wWKIWg44YmoQQHeTI76aq/8W06TLYrOFppRe5ZVmmMq+UwWRB8e xXbY78029pQ2BLVyv1ng+JQvaAk9jJ2Eg/X+xp4DqHN99A00ZYVnWDqrYjyz3Qj/mq6W v2gQ+LuexY7gx8eHqx5yejCx4xgCrdQiHLvIpPDrlmhwBqKBvyAgsKBnoQTg0PV5WCeA 0Uk9pSNUEpzhetbJGQa9bQMU5OHzCbYPgiJqJo1aapfQORQoNrgvYVvk+Et0/jDyfnfp xWZlQ0z6ITF0M8e1Koc/yb0rQ6yGbp13l8vquNo08YWYq8bB7z1wb2xvo6L0I6pqXXhH zu/Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:content-transfer-encoding:reply-to:list-subscribe :list-help:list-post:list-archive:list-unsubscribe:list-id :precedence:subject:mime-version:references:in-reply-to:message-id :date:to:from:delivered-to; bh=zkwDD56SuX/B06HLoy1O+3Xj4u39jzxPeOLYfTc7Sjc=; b=Ksp7CAKTowTTXJk6xn2EPMoCSsFxkEQxEiLPpmIh3yZxBAZfiqXoNzQiJztLnGIeTA MjcnqAhaoKMdvelIpwYgRhZSHVa9gg8kkQjVswwvdf9UxIrSuRgkdaiNHFKV/zyZUMaf tTE/yauCkUfDoxHFwXGQCwnK2GbluKbDciURkdi5ygvO4AWvliaSh1J7IZTz2HigxcEo QxXDxONh1Ykv8ZTwcIGZg5WC5guuDgEdPDupNdTfKQEG1+Dg4zWulFNTV5eAfIun50Y9 CyvGMEf0uoWn6sum/qecwWXtG+UrBA2FI3d2xAOlbHtJkUylvv/Qe78D5jcCiW5mlsjG KBIQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org. [79.124.17.100]) by mx.google.com with ESMTP id g15-20020a1709067c4f00b0072a7a1bd505si5116952ejp.207.2022.08.29.07.07.36; Mon, 29 Aug 2022 07:07:43 -0700 (PDT) Received-SPF: pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) client-ip=79.124.17.100; Authentication-Results: mx.google.com; spf=pass (google.com: domain of ffmpeg-devel-bounces@ffmpeg.org designates 79.124.17.100 as permitted sender) smtp.mailfrom=ffmpeg-devel-bounces@ffmpeg.org Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id E783368BAA7; Mon, 29 Aug 2022 17:07:32 +0300 (EEST) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail0.khirnov.net (red.khirnov.net [176.97.15.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id C101068ACDC for ; Mon, 29 Aug 2022 17:07:26 +0300 (EEST) Received: from localhost (localhost [IPv6:::1]) by mail0.khirnov.net (Postfix) with ESMTP id 126CF240D1A for ; Mon, 29 Aug 2022 16:07:26 +0200 (CEST) Received: from mail0.khirnov.net ([IPv6:::1]) by localhost (mail0.khirnov.net [IPv6:::1]) (amavisd-new, port 10024) with ESMTP id 1p-TUTGwmkNJ for ; Mon, 29 Aug 2022 16:07:25 +0200 (CEST) Received: from libav.khirnov.net (libav.khirnov.net [IPv6:2a00:c500:561:201::7]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "libav.khirnov.net", Issuer "smtp.khirnov.net SMTP CA" (verified OK)) by mail0.khirnov.net (Postfix) with ESMTPS id 0C2A5240D18 for ; Mon, 29 Aug 2022 16:07:25 +0200 (CEST) Received: by libav.khirnov.net (Postfix, from userid 1000) id D5E543A0D7F; Mon, 29 Aug 2022 16:07:18 +0200 (CEST) From: Anton Khirnov To: ffmpeg-devel@ffmpeg.org Date: Mon, 29 Aug 2022 16:07:17 +0200 Message-Id: <20220829140717.26557-3-anton@khirnov.net> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220829140717.26557-1-anton@khirnov.net> References: <20220829140717.26557-1-anton@khirnov.net> MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH 3/3] lavu/fifo: clarify interaction of AV_FIFO_FLAG_AUTO_GROW with av_fifo_write() X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" X-TUID: Ut0iDUkVitQg --- libavutil/fifo.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/libavutil/fifo.h b/libavutil/fifo.h index 89872d0972..70f9376d97 100644 --- a/libavutil/fifo.h +++ b/libavutil/fifo.h @@ -124,9 +124,12 @@ int av_fifo_grow2(AVFifo *f, size_t inc); /** * Write data into a FIFO. * - * In case nb_elems > av_fifo_can_write(f), nothing is written and an error + * In case nb_elems > av_fifo_can_write(f) and the AV_FIFO_FLAG_AUTO_GROW flag + * was not specified at FIFO creation, nothing is written and an error * is returned. * + * Calling function is guaranteed to succeed if nb_elems <= av_fifo_can_write(f). + * * @param f the FIFO buffer * @param buf Data to be written. nb_elems * av_fifo_elem_size(f) bytes will be * read from buf on success.