From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.ffmpeg.org (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTPS id B23914B1B6 for ; Sat, 19 Jul 2025 14:48:12 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTP id E993468C1C5; Sat, 19 Jul 2025 17:48:08 +0300 (EEST) Received: from mail-ed1-f51.google.com (mail-ed1-f51.google.com [209.85.208.51]) by ffbox0-bg.ffmpeg.org (Postfix) with ESMTPS id C426B68BE32 for ; Sat, 19 Jul 2025 17:48:01 +0300 (EEST) Received: by mail-ed1-f51.google.com with SMTP id 4fb4d7f45d1cf-60780d74c85so5006790a12.2 for ; Sat, 19 Jul 2025 07:48:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1752936480; x=1753541280; darn=ffmpeg.org; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :from:to:cc:subject:date:message-id:reply-to; bh=U8kcEsM5zfCjFy3froIQz2c8MKoKUtlg2UsEjQwmRmQ=; b=Y6fNCmovmyCerTjOlLGa+oSww3zoXxbIKN5TUur8P4Q1gbaV3tyzrZHDXG1txisZ9e NxGdxD2rgQzLNucokmyUS6gBVJXbLKkdTh2UnEeWk6KlmKZ/UysUUdegNIHVCrLIkFmS SoPZmFXMSseHhReIenYrVdBkCrJFCjFltgUH1qKCidkwcHFRovXXDGUg1LGI5f0slgCz 6tF9SZbZWfcnl2gO4NzeqfxnRnGjmQXv6/iUMu+EJ1uz+DRaVgUqZ5ajkeH2Kzt/sp63 Cl2UxZvVx5FKs3L3WsIZBsdZ+2yTnp+BCTNlAEXfi8po7Aouu23GNdK8WvF59igepsOv mPvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1752936480; x=1753541280; h=to:subject:message-id:date:from:in-reply-to:references:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=U8kcEsM5zfCjFy3froIQz2c8MKoKUtlg2UsEjQwmRmQ=; b=d0i3VaMLemmv2/MBguc0PeZGwSAtkq59XsAXKFhvjED6vfw5ETehnncg9o1xyBldlP 5Mmxrw2auMHMZFVbTwBLWpPML9xR3Msso19TRQNWpwhviaELeRmDKj2RyLymPQqxQ/Qw idmOhQa4KND3htskyScPvE5ZlWwWt97tPShHYG6J0TG78Qgn7WLd+RO+HZ5oeA9HklGL XazOXlt2sLCTnnHCKo0qdWnequRIeVsGa/mBtcPi8Y8De/wX1QQMoQ+5jFeK1hcFCrlI qfuxcV/ukHk5aB+juLlvr+snlDlOqmYP6INy57SUF/llKEWTZmIwGzsenJnAuMQHqhtx 2Qlw== X-Gm-Message-State: AOJu0Yyz4UrjV31NqNqZt+yScngvcM1MFTa3t0ShBr0ocs2zkFLjaM3N XkQP7K6LKDh4Gy72R3peGsX3GUKEEFInn/BLsOX7NTYkOrO7ZcbgQ/y/Nxh5ymb4amS9jWUrTMN muKpPMbI+eyoKrGeho02CEn3belJwDDTVMw== X-Gm-Gg: ASbGncusvaJgVCCDd2sz9/zn7EREFYHyw7bNNpX9QIKdLXufdHkch9ve68fzrI0dNEf W71vOluOsTyrcAcdp2dCUkPhNGBL9DdzYOQ98GxkkZH1vGUurWvl1YTynOBkelrPW2uCjDC5Lbw jum343RPz5/LHN6PMFugEtpWIokcrRDZx6A0Ai/kzY+8KowseJ3iQkV36vyhEghCxUDK8QRKdsD ycL X-Google-Smtp-Source: AGHT+IECkathdymCV+m8ANPf7ka1qEolMPZBDIPU/FmwPqVv+6g7z7lUrIJxpyRzcTU71u17I2FvAyMw5E6Vkd9mfuA= X-Received: by 2002:a05:6402:1d55:b0:612:bc52:a93d with SMTP id 4fb4d7f45d1cf-612bc52abcdmr7346256a12.13.1752936480233; Sat, 19 Jul 2025 07:48:00 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Kacper Michajlow Date: Sat, 19 Jul 2025 16:47:28 +0200 X-Gm-Features: Ac12FXxOV0Qb-9-zpkGYj3ADyw8pBFKd992hM_YrfWOIoH3cl_ctTmqw1InsqAI Message-ID: To: FFmpeg development discussions and patches X-Content-Filtered-By: Mailman/MimeDel 2.1.29 Subject: Re: [FFmpeg-devel] [PATCH] avfilter: add inverse tone mapping 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: On Sat, 19 Jul 2025 at 16:13, Sarthak Indurkhya via ffmpeg-devel < ffmpeg-devel@ffmpeg.org> wrote: > Hello FFmpeg developers, > This patch introduces a new video filter called inversetonemap for FFmpeg. > The filter performs SDR to HDR conversion by mapping SDR BT.709 video to > HDR BT.2020 PQ, using local adaptation and inverse tone mapping. The goal > is to provide a simple, flexible tool for upconverting SDR content for HDR > displays, with local adaptation, tone curve sensitivity, and chroma > processing. > > Please review. > Thanks, > Sarthak > > > Interesting. Could you describe what are the advantages of the new filter, compared to existing solutions like vf_libplacebo inverse tone mapping? Additionally if there is a big gap in libplacebo's inverse tone mapping quality would you be interested in improving the libplacebo implementation in addition to this filter? I think there would be a gain in having real time gpu implementation too. - Kacper _______________________________________________ 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".