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 781204055B for ; Wed, 27 Apr 2022 08:40:19 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 4FF7268B37A; Wed, 27 Apr 2022 11:40:17 +0300 (EEST) Received: from mout-p-101.mailbox.org (mout-p-101.mailbox.org [80.241.56.151]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 023DA688050 for ; Wed, 27 Apr 2022 11:40:09 +0300 (EEST) Received: from smtp2.mailbox.org (smtp2.mailbox.org [80.241.60.241]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-384) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-101.mailbox.org (Postfix) with ESMTPS id 4KpByc5533z9sWD for ; Wed, 27 Apr 2022 10:40:08 +0200 (CEST) Message-ID: Date: Wed, 27 Apr 2022 14:09:52 +0530 MIME-Version: 1.0 Content-Language: en-US To: ffmpeg-devel@ffmpeg.org References: <20220426210834.314078-1-leo.izen@gmail.com> From: Gyan Doshi In-Reply-To: <20220426210834.314078-1-leo.izen@gmail.com> Subject: Re: [FFmpeg-devel] [PATCH] doc/encoders: document libjxl encoder options 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 2022-04-27 02:38 am, Leo Izen wrote: > Add more detailed documenation for the libjxl encoder > wrapper than is present currently inside libavcodec. > --- > doc/encoders.texi | 34 ++++++++++++++++++++++++++++++++++ > 1 file changed, 34 insertions(+) > > diff --git a/doc/encoders.texi b/doc/encoders.texi > index aac9f25e55..99399d4674 100644 > --- a/doc/encoders.texi > +++ b/doc/encoders.texi > @@ -1809,6 +1809,40 @@ by ":". See the SVT-AV1 encoder user guide for a list of accepted parameters. > > @end table > > +@section libjxl > + > +libjxl JPEG XL encoder wrapper. > + > +Requires the presence of the libjxl headers and library during > +configuration. You need to explicitly configure the build with > +@code{--enable-libjxl}. > + > +@subsection Options > + > +The libjxl wrapper supports the following options: > + > +@table @option > + > +@item distance > +Set the target Butteraugli distance. This is a quality setting: lower > +distance yields higher quality, with distance=1.0 roughly comparable to > +libjpeg Quality 90 for photographic content. Setting distance=0.0 yields > +true lossless encoding. Valid values range between 0.0 and 15.0, and sane > +values rarely exceed 5.0. Setting distance=0.1 is usually attains > +transparency for most input. The default is 1.0. > + > +@item effort > +Set the encoding effort used. Higher effort values produce more consistent > +quality and usually produces a better quality/bpp curve, at the cost of > +more CPU time required. Valid values range from 1 to 9, and the default is 7. > + > +@item modular > +Force the encoder to use Modular mode. The default is to let the encoder pick > +between VarDCT and Modular encoding modes based on encoding settings and the > +type of input content. What happens in these two modes? Why would the user want to force modular? Is there a way and reason to force VarDCT? Regards, Gyan _______________________________________________ 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".