From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id D12EF45B87 for ; Mon, 24 Apr 2023 10:08:25 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BF97368BF13; Mon, 24 Apr 2023 13:08:22 +0300 (EEST) Received: from mail0.khirnov.net (red.khirnov.net [176.97.15.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id BD13568BB41 for ; Mon, 24 Apr 2023 13:08:16 +0300 (EEST) Received: from localhost (localhost [IPv6:::1]) by mail0.khirnov.net (Postfix) with ESMTP id 7FC4F2404EE for ; Mon, 24 Apr 2023 12:08:16 +0200 (CEST) Received: from mail0.khirnov.net ([IPv6:::1]) by localhost (mail0.khirnov.net [IPv6:::1]) (amavisd-new, port 10024) with ESMTP id 33YHmz7OnEVb for ; Mon, 24 Apr 2023 12:08:16 +0200 (CEST) Received: from lain.khirnov.net (lain.khirnov.net [IPv6:2001:67c:1138:4306::3]) (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 "lain.khirnov.net", Issuer "smtp.khirnov.net SMTP CA" (verified OK)) by mail0.khirnov.net (Postfix) with ESMTPS id 04E0A2404EC for ; Mon, 24 Apr 2023 12:08:16 +0200 (CEST) Received: by lain.khirnov.net (Postfix, from userid 1000) id DD6CC1601B2; Mon, 24 Apr 2023 12:08:15 +0200 (CEST) From: Anton Khirnov To: FFmpeg development discussions and patches In-Reply-To: <299fbcbb-5730-f06-8532-ee0e33a1a39@passwd.hu> References: <168217824856.3843.12078608174603704828@lain.khirnov.net> <2154f93d-aa9-21da-966-a18399b33bf1@passwd.hu> <168224247972.9711.2598182970187678748@lain.khirnov.net> <168224350165.3843.7618353870792865075@lain.khirnov.net> <3587873f-7b50-a98c-70ce-443aeb93b9ae@passwd.hu> <168225127500.3843.6466868436482522174@lain.khirnov.net> <5e23352c-434c-1135-827d-49438c7cf11@passwd.hu> <168228099822.3843.5128524518650472655@lain.khirnov.net> <299fbcbb-5730-f06-8532-ee0e33a1a39@passwd.hu> Mail-Followup-To: FFmpeg development discussions and patches Date: Mon, 24 Apr 2023 12:08:15 +0200 Message-ID: <168233089586.3843.17645935752826345939@lain.khirnov.net> User-Agent: alot/0.8.1 MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH v2] fftools/ffmpeg_mux: fix reporting muxer EOF as error 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 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: Quoting Marton Balint (2023-04-24 11:09:44) > > > On Sun, 23 Apr 2023, Anton Khirnov wrote: > > > Quoting Marton Balint (2023-04-23 20:15:13) > >> > >> > >> On Sun, 23 Apr 2023, Anton Khirnov wrote: > >> I don't understand. A good program propagates back error conditions to the > >> user, and not hides them silently. > > > > I do not think blanket claims such as this are a good idea. What is or > > is not considered "an error condition" depends on the context. > > > > As I said before - I don't see why a muxer should ever return > > AVERROR_EOF to signal a legitimate muxing error. > > The real risk is that they unintentionally do that, when the error code is > coming from some underlying operation for example. > > So previsouly a muxer could return any error code to signal error > condition and reasonably assume that ffmpeg.c will report it back to the > user as an error. Also, muxers absolutely must not make any assumptions about ffmpeg CLI behavior, because other callers exist and they must all be treated equally. -- Anton Khirnov _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".