From patchwork Fri Mar 19 09:42:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Playfair Cal X-Patchwork-Id: 26481 Return-Path: X-Original-To: patchwork@ffaux-bg.ffmpeg.org Delivered-To: patchwork@ffaux-bg.ffmpeg.org Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by ffaux.localdomain (Postfix) with ESMTP id 948CB44BA92 for ; Fri, 19 Mar 2021 11:42:21 +0200 (EET) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 6321668A59A; Fri, 19 Mar 2021 11:42:21 +0200 (EET) X-Original-To: ffmpeg-devel@ffmpeg.org Delivered-To: ffmpeg-devel@ffmpeg.org Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id D64A668A176 for ; Fri, 19 Mar 2021 11:42:14 +0200 (EET) Received: by mail-pf1-f175.google.com with SMTP id x184so5490524pfd.6 for ; Fri, 19 Mar 2021 02:42:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=3mXAz07K/5HfPN3jSrQzxB7hNN+OoMVcwcigN895LIY=; b=Dof38v5PzZcAj15c56MDY62BCHYm60Px5f09fzxMZBso5wJnEb4y+YNfIHal3OAAWK k0Fc73GZRJpZiOFpFfx3SHOUUlz7pzO+oD0OBEW8TMN0bm//HmAj9OJA1etJwmbTh5OA 1MAaX2dFU3nLIx24NJz/QutvFHzstq6sujXgYZWRDicWFTP6VbZlobOUYoxp/lWO83NW xGS4oT6APOI5+o8yTAUdvXBGxJW9gnSR9pzksaKaowu8WBZ8Ui7lDDdEx6R3ZRmQ4yTI FVCGmn6EWfDMwisPLn86DZe45icePGCg2TaGC50i+cOsKboBI++sqf5BnkI36tHPgYxv cRbg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=3mXAz07K/5HfPN3jSrQzxB7hNN+OoMVcwcigN895LIY=; b=Vn+qsHzKP2mGID7vnyUWFhEeXUeIXyOOSTALOksUaJObgcNCqQSh6n3xTvMhoyDcY3 CPOhsIxvzNWE64/6XQWNX+IQmExX7g10ZHz8FvmeI9NQ3vFD7kw/pdS1AZrpUOEEomoM eF9po1A97mvpdwuyvs1P3CxWkLVSBCefQXk1V85aCUx/2txduXTApd9DJ6sgg73iP0c3 ZLRhy0FKBbesNrmtsdwxCbXSimBxSfwqfOEYN5OAhPaO8R+2OcP3Y5+7NBrPSA48T34X OrZ0qPdzqkjmIwHP8o+KEyVyLmlPvUF6/Fv37NASs8zCe2oj4wHeBHrfx9kWxowyQkpD nX0g== X-Gm-Message-State: AOAM531L2PDydh7CEhdSajQoS2LZxjtze741ao80XyTfGXeB/xuuShD5 +jg6ZgoL59GFwVhHLxxRIJbkFEM4b8YynQ== X-Google-Smtp-Source: ABdhPJw2aXXMP32eYqMqwbR3M7zPcbbWiH++BpTKqhIyR/DvrySLTKVibRsUDseKrzyuh/QS6gcEVw== X-Received: by 2002:aa7:92cb:0:b029:1f1:542f:2b2b with SMTP id k11-20020aa792cb0000b02901f1542f2b2bmr8162999pfa.31.1616146932974; Fri, 19 Mar 2021 02:42:12 -0700 (PDT) Received: from localhost.localdomain (110-175-121-4.static.tpgi.com.au. [110.175.121.4]) by smtp.gmail.com with ESMTPSA id s26sm5088191pfd.5.2021.03.19.02.42.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 19 Mar 2021 02:42:12 -0700 (PDT) From: Daniel Playfair Cal To: ffmpeg-devel@ffmpeg.org Date: Fri, 19 Mar 2021 20:42:04 +1100 Message-Id: <20210319094204.926251-1-daniel.playfair.cal@gmail.com> X-Mailer: git-send-email 2.31.0 MIME-Version: 1.0 Subject: [FFmpeg-devel] [PATCH] vf_v360: fix visibility test for fisheye projection 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 Cc: Daniel Playfair Cal Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Previously the visibility test referred to a circle in the input. This changes it so that it refers accurately to the entire area in the input. Signed-off-by: Daniel Playfair Cal --- libavfilter/vf_v360.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavfilter/vf_v360.c b/libavfilter/vf_v360.c index 94473cd5b3..602e0e2d72 100644 --- a/libavfilter/vf_v360.c +++ b/libavfilter/vf_v360.c @@ -2887,7 +2887,7 @@ static int xyz_to_fisheye(const V360Context *s, float uf = vec[0] / lh * phi / s->iflat_range[0]; float vf = vec[1] / lh * phi / s->iflat_range[1]; - const int visible = hypotf(uf, vf) <= 0.5f; + const int visible = -0.5 < uf && uf < 0.5 && -0.5 < vf && vf < 0.5; int ui, vi; uf = (uf + 0.5f) * width;