From patchwork Mon Feb 19 17:45:11 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Tomas_H=C3=A4rdin?= X-Patchwork-Id: 7659 Delivered-To: ffmpegpatchwork@gmail.com Received: by 10.2.150.33 with SMTP id c30csp1790171jai; Mon, 19 Feb 2018 09:45:23 -0800 (PST) X-Google-Smtp-Source: AH8x227wZRKoGciKkTtXGLUQDTP/2FwWLWFQcsP5nQrb5Mqwe/6rFSGsss3d/oNQqwkAOja26Y3i X-Received: by 10.223.161.10 with SMTP id o10mr2645142wro.60.1519062322985; Mon, 19 Feb 2018 09:45:22 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1519062322; cv=none; d=google.com; s=arc-20160816; b=rDib4lknv9h6rxbtmqOKPSNfu9Bi7X/B61Dbg9oHngw7Ax/jDHHV92r0l6MAznanHv juJmAKk6/vWfxSYdZP5CZPMDmMx2gVanBDOykltP1GljBNxvk+fE154tM+m6DCmOlcYf dgfJBe5a7hFBea/W8CE3icvYTGawpZlXoHlyxqJQObHdx558dbMpyyPq/yzOrahrRuUw ZCTAoEham7IyMb2cW81cOZ2mJI9GkW65876cvEFdnIz8iDT4a+P54Fgha77Lm2MVST/q B7bd0YXVzpwr5Kd6IifjfupuP2GH8Om3jdmH8LKoauOkiLIIjrorWrXatdHXWAGu7PD/ YlTA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:reply-to:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence:subject :mime-version:date:to:from:message-id:dkim-signature:dkim-signature :delivered-to:arc-authentication-results; bh=TNhEzQajEsadvgou9S3U5jVAaRl7MzUQmRsjjrWLgp4=; b=EF10RPhYUE+bMpIva8MOHSc5vnJnD/oCUBlWfgGs6G1Bz+nUTCaa0KzB4pA5zFf1P4 xWJG1C5Tleat0VNZHvc20FwKM2+6I5OFyuPaVYIYkvQ4+5JUwpn9lyHxOhQcifmkU19X cJpGZSZf4QGVVyZ+oKpu7feV39zymzBn58RYsG5x6jv/5nH6LaZfRrKbRAZeVzZYC/by eewHfxHHKmnY4VbURQwbs9VNHXN8pO6P08hZskQN/BmRJe8qa8OAZXe4lrbLMQYkOk7d oJfjtkwvXUeP1q/YBfX6PfzWFileU0MKwepsY+zLu1BFv2vk8i7zp/oUoj2R7ChH1rn1 7+9w== ARC-Authentication-Results: i=1; mx.google.com; dkim=neutral (body hash did not verify) header.i=@acc.umu.se header.s=mail1 header.b=COLZd5OU; dkim=neutral (body hash did not verify) header.i=@acc.umu.se header.s=mail1 header.b=Nspl6WUW; 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 3si17968013wra.490.2018.02.19.09.45.21; Mon, 19 Feb 2018 09:45:22 -0800 (PST) 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; dkim=neutral (body hash did not verify) header.i=@acc.umu.se header.s=mail1 header.b=COLZd5OU; dkim=neutral (body hash did not verify) header.i=@acc.umu.se header.s=mail1 header.b=Nspl6WUW; 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 9A0BC689CB1; Mon, 19 Feb 2018 19:45:19 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail.acc.umu.se (mail.acc.umu.se [130.239.18.156]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id B6FED689C78 for ; Mon, 19 Feb 2018 19:45:12 +0200 (EET) Received: from localhost (localhost.localdomain [127.0.0.1]) by amavisd-new (Postfix) with ESMTP id AF8B944BA5 for ; Mon, 19 Feb 2018 18:45:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=acc.umu.se; s=mail1; t=1519062312; bh=cOTD6D/CwW9kaxdAhi817srS2SZlI5r5cOpvSIXlSLk=; h=Subject:From:To:Date:From; b=COLZd5OUx58fSmM7cAu+qFyKczYcN0jULL/D6yXUf9UX2xEDcRQ3ghdNBRLd5Ppi3 UqW7PTyNxbcWBTVCdEu/kgs3gMutIgMM8ZYSBlSLPmMKY9Mjt0krKw71XJXypZnUin 8z5Ypo3tTi/PrpWH79KMVsMnEa4p2SfTxb7ZhccEZHoKqJofx4AajCN6nIi3TsuZTq euparrDJFk5jTzxA+2JohwH+rzZTGFbWe8DnelVj25m8nkGOOtf7ArW8iJzG3MsVTI A2FLL/Ctzlnhj/afS9W5WWZUmFc+G2IyqF/MrshPf3vzCsSuP85reRpqSTqG6vL5w1 t2JQe0J+o9T5Q== Received: from [172.23.145.49] (unknown [172.23.145.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: tjoppen) by mail.acc.umu.se (Postfix) with ESMTPSA id EAFC244B9D for ; Mon, 19 Feb 2018 18:45:11 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=acc.umu.se; s=mail1; t=1519062311; bh=cOTD6D/CwW9kaxdAhi817srS2SZlI5r5cOpvSIXlSLk=; h=Subject:From:To:Date:From; b=Nspl6WUWziufXCczWX/0bXr2w3La7jNl5A5z4PB8PaFEZ7sfcNAQo8/+obZs5rTHU SDNw2UVyjDCqIxPCOzFEwzvJZRC4NipcqmuGb4BzNbUpamgV16ePuCyl6KP0MfPyrr kLcMKKs9YurOYnqwTkxyUQ2taaUjuvSCcVTsTRghRmL4f4f++VVod+RYyi92p4UmxI qro8TQgHc3208txbF3DyVqupbEDzCrpKdmDY/8KlvCgt2T3/dPT9+vws6UvEwbVkrV xtfCUkr1jhCL8oflzMf5wrthmZAuT0BrnvbAKPO+KNbvOdEZC1MOpN36H0gXw04myo JeVQPKCZ+uB5g== Message-ID: <1519062311.30136.1.camel@acc.umu.se> From: Tomas =?ISO-8859-1?Q?H=E4rdin?= To: FFmpeg development discussions and patches Date: Mon, 19 Feb 2018 18:45:11 +0100 X-Mailer: Evolution 3.22.6-1+deb9u1 Mime-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] Add -vf scale example for making pixels square X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.20 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" From 9605df7c8402fb8d5fdbb55ae05639338a1ae0a1 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Tomas=20H=C3=A4rdin?= Date: Mon, 19 Feb 2018 18:42:25 +0100 Subject: [PATCH] Add -vf scale example for making pixels square This is a common use case. --- doc/filters.texi | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/doc/filters.texi b/doc/filters.texi index bd93e0ab84..8a9b78d778 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -13721,6 +13721,19 @@ keeping the same aspect ratio as the input: @example scale=w='min(500\, iw*3/2):h=-1' @end example + +@item +Make pixels square by combining scale and setsar: +@example +scale='trunc(ih*dar):ih',setsar=1/1 +@end example + +@item +Make pixels square by combining scale and setsar, +making sure the resulting resolution is even (required by some codecs): +@example +scale='trunc(ih*dar/2)*2:trunc(ih/2)*2',setsar=1/1 +@end example @end itemize @subsection Commands -- 2.11.0