From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.ffmpeg.org (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTPS id 0EAAD4DCB3 for ; Wed, 4 Jun 2025 13:36:17 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTP id 91F2868CD1D; Wed, 4 Jun 2025 16:36:13 +0300 (EEST) Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTPS id 6AEC468CA77 for ; Wed, 4 Jun 2025 16:36:06 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 68EAD43409 for ; Wed, 4 Jun 2025 13:36:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1749044165; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=1yHG8514jrBNFMQz3TlQNAD1cb26I0tKKhwu6WRZuo8=; b=YoJwkInE4XE0HC4OyCamt9HdLfHol+8N8d6POGXwH1qygsPOnsyEsz5LXJ7f7mCwtbi+sC GQeqT3p+vZ193WZoZD3mDwjyj7+gP2r0mS2pSbAb89XXHJU5L2v1Mhhq+pGTaFJSpQjaV4 pJzqjFPs/B/5G/k1KOu+OAJblVwWCS0tiuQ5HCDesaPW4EJC6WEwJHhGYjuJuLz8Z1VBKj byixFDPi6QEQhhppVoVCdrnuEqheFjIg3AS0y1SxrP7oblYOGFX26V25nhdJoFtGIiQd0a 9ld+8R8UDTKBzqbTyXw0pvT8jBIqv2GfgNVifp93SPrVG2BPb6G+M5N8XoTGDw== Date: Wed, 4 Jun 2025 15:36:04 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20250604133604.GR29660@pb2> References: MIME-Version: 1.0 In-Reply-To: X-GND-State: clean X-GND-Score: -85 X-GND-Cause: gggruggvucftvghtrhhoucdtuddrgeeffedrtddugddvvdduucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuifetpfffkfdpucggtfgfnhhsuhgsshgtrhhisggvnecuuegrihhlohhuthemuceftddunecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenfghrlhcuvffnffculdduhedmnecujfgurhepfffhvffukfhfgggtuggjsehgtderredttdejnecuhfhrohhmpefoihgthhgrvghlucfpihgvuggvrhhmrgihvghruceomhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtqeenucggtffrrghtthgvrhhnpeffheevhfdvvdfhtdfgtefhtdeuleeftdevkeffleejtefhgedthfefgffgueeftdenucffohhmrghinhepfhhfmhhpvghgrdhorhhgnecukfhppeeguddrieeirdeijedruddufeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeeguddrieeirdeijedruddufedphhgvlhhopehlohgtrghlhhhoshhtpdhmrghilhhfrhhomhepmhhitghhrggvlhesnhhivgguvghrmhgrhigvrhdrtggtpdhnsggprhgtphhtthhopedupdhrtghpthhtohepfhhfmhhpvghgqdguvghvvghlsehffhhmphgvghdrohhrgh X-GND-Sasl: michael@niedermayer.cc Subject: Re: [FFmpeg-devel] Test coverage for libavfilter negotiation 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: multipart/mixed; boundary="===============3821591117486269070==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============3821591117486269070== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="zo4D86obm6ObSbBb" Content-Disposition: inline --zo4D86obm6ObSbBb Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi Nicolas On Wed, Jun 04, 2025 at 09:24:23AM +0200, Nicolas George wrote: > Hi. >=20 > As I explained earlier in the =E2=80=9CSubtitle Filtering Ramp-Up=E2=80= =9D thread: >=20 > Any non-trivial progress on libavfilter requires touching the format > negotiation code. The format negotiation code is very fragile and has > almost no test coverage at all. >=20 > Touching it as is would be suicidal. >=20 > Therefore, any non-trivial progress on libavfilter requires first adding > test coverage on the negotiation process. >=20 > I started a long time ago: > https://lists.ffmpeg.org/pipermail/ffmpeg-devel/2022-August/299593.html > but it is extremely boring work, I got bored and I could not take some > air working on AVWriter. I do not intend to do boring things unless I > can have some freedom doing fun things too. >=20 > It is boring, but it is not very hard. Which is why I think it would be > a good candidate to throw money at, if we have money that we can throw > at needs. >=20 > It could take the form of bounties: one line of coverage =E2=87=92 one am= ount of > money. It could work because there is an objective criterion: the test > must pass as is but fail if we artificially remove or alter the line of > code it covers. >=20 > I can advise on the technical matter, I can review patches, list parts > of the code that require coverage and explain what they do. But I do not > know how do do the money part. I think this whole idea is good, please make sure it is added to the STF pa= ge and that someone does all the submission and paper stuff (if no objections) thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Nations do behave wisely once they have exhausted all other alternatives.= =20 -- Abba Eban --zo4D86obm6ObSbBb Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCaEBLwQAKCRBhHseHBAsP q6j9AKCDLjIUkV3GHM2BbscZVSQJvNoCcwCdGfaa+gEgRMv7gJPf4nJxSSlKz0w= =AsqB -----END PGP SIGNATURE----- --zo4D86obm6ObSbBb-- --===============3821591117486269070== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ 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". --===============3821591117486269070==--