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 11F0644DBA for ; Tue, 22 Nov 2022 16:46:26 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 70EEA68BB37; Tue, 22 Nov 2022 18:46:23 +0200 (EET) Received: from mail-il1-f170.google.com (mail-il1-f170.google.com [209.85.166.170]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 7847E68A65A for ; Tue, 22 Nov 2022 18:46:16 +0200 (EET) Received: by mail-il1-f170.google.com with SMTP id x13so4067382ilp.8 for ; Tue, 22 Nov 2022 08:46:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id:from :to:cc:subject:date:message-id:reply-to; bh=sQG7XY5+3ve6Okbc8N9BTXk9U8kD3Pa+6SBOxJKRRXs=; b=bBcKZ039dmyYrnBDwh27JZzGxQ/gg6gDAvXheTzcvENjIzYeST3nbupkNDk8Pr4W8V ahRz8HJrWyTcJPlBN8YCduceyus6oTaYfTaO/AxpQ2TT3vMrBJFZXHCh/Uj2ryUt+zks GFNCIZcGO1lbyrvS24HOrH4iGQ995ksDX0T60YJL5IrzQbHUhS2D7jxjxfBYC8anVw8K u1ahnS27iLolXRK/4gWvQfyBe7QuHhW+Nf1Ktdk318bfuG/rcHQyrPSScSnrBffnF4E1 n6U9uC+hdPR9WB7ukxwBGKLZc11qBEJX3OcVEqnLedu5Xkr3IZFzPEMiYxnMZ0PbjwPn 3nbw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:content-language :references:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=sQG7XY5+3ve6Okbc8N9BTXk9U8kD3Pa+6SBOxJKRRXs=; b=YLdtYBu1gO1RCVhxs9YBsvgnMLwgNs4NVsQyLhpvEyOPVlk4q3lyVK0hOAWkp4r+RJ 48kcezLDfPuZYBs770rYG6zgSrc/fzLuEttXmSciRi5JNbxV86dLxWHC2BXnutQyahKf OHMMT6/cS6sznlNrTiwWgwd1RFIEksoSmlCEPXLSLaIBGBR1Td/6EHf4Yl5buPRLIqdM BBUQnH7+Trd1y7Jjout5kh/Bir9+zyv6+pUvlY6ttpcXI3rJ/sSC/XnMaOgfe6ywu8dM vAOpWY50fIRY0r90W29a9S0oFJsgp+SV3vcmCmOL+2tf4OEDeqIb4dJvxpViZv8Yp9xQ VMJA== X-Gm-Message-State: ANoB5pkKd6c1MAZiRTimz2VR3N1MMsIcAef0rKmSP5cn5gQ+LtQG45mO o5TjUbm8jek6Yy3Wom57IS0Klqg03Hk= X-Google-Smtp-Source: AA0mqf4FPX3vIhMwCupzVGf+DiZ8WGkhpIel7O6rsnJ5XSrQECPDZxcv81AsjRMfSUtxyxdYF6padw== X-Received: by 2002:a05:6e02:521:b0:302:6b23:79a2 with SMTP id h1-20020a056e02052100b003026b2379a2mr2081167ils.138.1669135574642; Tue, 22 Nov 2022 08:46:14 -0800 (PST) Received: from [192.168.1.35] (c-68-41-54-207.hsd1.mi.comcast.net. [68.41.54.207]) by smtp.gmail.com with ESMTPSA id a15-20020a5ec30f000000b006ce94d987a3sm5484969iok.30.2022.11.22.08.46.13 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 22 Nov 2022 08:46:14 -0800 (PST) Message-ID: <38e46d11-ea49-4818-a58c-2e766bb143e2@gmail.com> Date: Tue, 22 Nov 2022 11:46:13 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.4.2 To: FFmpeg Development References: <20221116114306.251999-1-leo.izen@gmail.com> Content-Language: en-US-large From: Leo Izen In-Reply-To: <20221116114306.251999-1-leo.izen@gmail.com> Subject: Re: [FFmpeg-devel] [PATCH] avcodec/pnm: avoid mirroring PFM images vertically 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-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: On 11/16/22 06:43, Leo Izen wrote: > PFM (aka Portable FloatMap) encodes its scanlines from bottom-to-top, > not from top-to-bottom, unlike other NetPBM formats. Without this > patch, FFmpeg ignores this exception and decodes/encodes PFM images > mirrored vertically from their proper orientation. > > For reference, see the NetPBM tool pfmtopam, which encodes a .pam > from a .pfm, using the correct orientation (and which FFmpeg reads > correctly). Also compare ffplay to magick display, which shows the > correct orientation as well. > > See: http://www.pauldebevec.com/Research/HDR/PFM/ and see: > https://netpbm.sourceforge.net/doc/pfm.html for descriptions of this > image format. > > Signed-off-by: Leo Izen Bumping for review, thanks. - Leo Izen _______________________________________________ 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".