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 DC47B4B7BC for ; Thu, 13 Jun 2024 11:21:35 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id D1E3C68D9C8; Thu, 13 Jun 2024 14:21:32 +0300 (EEST) Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 01FFE68D953 for ; Thu, 13 Jun 2024 14:21:25 +0300 (EEST) Received: by mail-ed1-f50.google.com with SMTP id 4fb4d7f45d1cf-57c74085d57so113594a12.3 for ; Thu, 13 Jun 2024 04:21:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1718277685; x=1718882485; darn=ffmpeg.org; h=thread-index:content-language:content-transfer-encoding :mime-version:message-id:date:subject:in-reply-to:references:to:from :from:to:cc:subject:date:message-id:reply-to; bh=mPnRyJ14mpoaseFjDJetHzgyaYWv+c6pcY/mMdeuTyU=; b=Nd6vRRkfocmm8L2xieE5sWd4RUKhUeKejUn+WtWK7O84G1FcOFiBblHRMNwJJ0g2Lc c1Z7ETN14VMbRFaA30Xq8j2vdncQhBAaR2Aww211jgqavVwZzYuFwDoy8AFVArNFZoo7 x+M371dPobeDZLOS9M6AqyPgMeU50lKbG2htj/REPYKTOsIwEBPvmsAU5WaG38ANr3Ae 1wKbXx0/HVMkzeK4r+DlYt/jKhDXMXfsaECcw/tbl/O2VVsoA91/tE3lFEYilSD7hC4k CX5Tg9zOqZyiUtgGff1BMZwipcehZXSlxW+g250HHmSPii5XCh6d4UAGnSFuWfF+Ct5v meyQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1718277685; x=1718882485; h=thread-index:content-language:content-transfer-encoding :mime-version:message-id:date:subject:in-reply-to:references:to:from :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=mPnRyJ14mpoaseFjDJetHzgyaYWv+c6pcY/mMdeuTyU=; b=tuM/dWVbIH30thUDEwsb4v6v4hV7ldqLUE72vI+rC5l43TxeJfhzalLBnO+gyYoMXP fytoVuQpua1n4XwDBanTIb6XkGJySjZulYbCwv2LLUhXGDmfsc9PQjv+8TUz62Dnpl5s GIY0WA+cSDrHeRcQrz6xNMmgQtJ4WzPDuIbdEj321RZyC0iYVZDEsyxb4/IILWvQ+x61 1vQ9gT5q2hW9XXvUxLNTCI/zF8YByZf8JR+v0oilLqF29v6Zk71TZswJc0r1JbwHeoRg Yfh7HQeoJNreEsmfJ7rbVBdDzC9X6shoccGDOFU0uOjtFwK7IJb9UqNAisup5Z0TqaHT ndJQ== X-Gm-Message-State: AOJu0YzxFQQSjxaAcAESL9j8Q8gMPOtv7BfJwiG2z8NxiN6ccb4dmw/7 IeIV2gqHTVncfbML3iRYKNAE53ILLJKXN3da4UskeUfwbd7P71fEEewboQ== X-Google-Smtp-Source: AGHT+IFI7mP1/fkKtcXuLRIdi7Q6+3rFzPwl/4cHSKgvTKGOLs+LlYg+8ypIE71HbfNtIlNH937g0Q== X-Received: by 2002:a50:aa94:0:b0:57c:61b3:bdc1 with SMTP id 4fb4d7f45d1cf-57cbc21968amr47076a12.3.1718277685003; Thu, 13 Jun 2024 04:21:25 -0700 (PDT) Received: from Mishu ([2a02:2f0f:830c:c700:a4f7:3c24:5d9d:9f1e]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-57cb722dad1sm794183a12.0.2024.06.13.04.21.23 for (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Thu, 13 Jun 2024 04:21:24 -0700 (PDT) From: To: "'FFmpeg development discussions and patches'" References: <000c01daa54d$8a0eedf0$9e2cc9d0$@gmail.com> <20240530213132.GE2821752@pb2> <008e01dab529$e5510630$aff31290$@gmail.com> <20240603224202.GD2821752@pb2> <001001dabbce$083f3c70$18bdb550$@gmail.com> <20240611171808.GP2821752@pb2> <005401dabd01$f66608f0$e3321ad0$@gmail.com> <1f77eae3-b3f2-477b-afe1-e31dc56917fa@noa-archive.com> In-Reply-To: <1f77eae3-b3f2-477b-afe1-e31dc56917fa@noa-archive.com> Date: Thu, 13 Jun 2024 14:21:23 +0300 Message-ID: <00c701dabd83$d33e1e80$79ba5b80$@gmail.com> MIME-Version: 1.0 X-Mailer: Microsoft Outlook 16.0 Content-Language: ro Thread-Index: AQF53sdsVM9iibY6Rm6BSu+PKGSxTgKF963BAWal2xYCbz23lQJMz4PFAttEFQACFSpRXQGdKO3Ysg2RZuA= Subject: Re: [FFmpeg-devel] [PATCH v3] area changed: scdet filter 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: > -----Original Message----- > From: ffmpeg-devel On Behalf Of Tobias > Rapp > Sent: joi, 13 iunie 2024 12:52 > To: ffmpeg-devel@ffmpeg.org > Subject: Re: [FFmpeg-devel] [PATCH v3] area changed: scdet filter > > On 12/06/2024 21:51, radu.taraibuta@gmail.com wrote: > > [...] > > > diff --git a/doc/filters.texi b/doc/filters.texi index > > bfa8ccec8b..53814e003b 100644 > > --- a/doc/filters.texi > > +++ b/doc/filters.texi > > @@ -21797,6 +21797,22 @@ Default value is @code{10.}. > > @item sc_pass, s > > Set the flag to pass scene change frames to the next filter. Default > > value is @code{0} > > You can enable it if you want to get snapshot of scene change frames > > only. > > + > > +@item mode > > +Set the scene change detection method. Default value is @code{-1} > > +Available values are: > > + > > +@table @samp > > +@item -1 > > +Legacy mode for sum of absolute linear differences. Compare frame > > with previous only and no delay. > > + > > +@item 0 > > +Sum of absolute linear differences. Compare frame with both previous > > and next which introduces a 1 frame delay. > > + > > +@item 1 > > +Sum of mean of cubic root differences. Compare frame with both > > previous and next which introduces a 1 frame delay. > > + > > +@end table > > @end table > > > > @anchor{selectivecolor} > > Out of curiosity: How do these three modes roughly compare (CPU) > performance wise? Mode -1 is virtually equal with mode 0 (no frame clone speedup of mode 0 is mostly theoretical). Mode 1 is roughly 40% slower, depending on input, it could benefit from ASM. > I'd prefer if mode "-1" could be used for the default case, and the three modes > get explicit values 0/1/2. So you want four possible values for mode where the default -1 is the same as one of the others? >Regarding naming I think that the "Legacy" mode still > has its usecases in the future. Naming it something like "simple" would not > imply that it is deprecated in general, but rather that it has lower precision > (and is possibly faster). > OK, I will rename "Legacy" mode so it doesn't look deprecated to somebody that can't allow 1 frame delay. Otherwise it shouldn't be used. _______________________________________________ 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".