From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <ffmpeg-devel-bounces@ffmpeg.org>
Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100])
	by master.gitmailbox.com (Postfix) with ESMTP id CA0F943E38
	for <ffmpegdev@gitmailbox.com>; Tue, 16 Aug 2022 04:03:36 +0000 (UTC)
Received: from [127.0.1.1] (localhost [127.0.0.1])
	by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id F1BE768B8C3;
	Tue, 16 Aug 2022 07:03:32 +0300 (EEST)
Received: from mout-p-102.mailbox.org (mout-p-102.mailbox.org [80.241.56.152])
 by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id DD47F68B6EB
 for <ffmpeg-devel@ffmpeg.org>; Tue, 16 Aug 2022 07:03:26 +0300 (EEST)
Received: from smtp1.mailbox.org (smtp1.mailbox.org [10.196.197.1])
 (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-102.mailbox.org (Postfix) with ESMTPS id 4M6HZ44xZcz9sSY
 for <ffmpeg-devel@ffmpeg.org>; Tue, 16 Aug 2022 06:03:24 +0200 (CEST)
Message-ID: <e91e857a-c95d-8778-e20d-17cb2201329e@gyani.pro>
Date: Tue, 16 Aug 2022 09:33:13 +0530
MIME-Version: 1.0
Content-Language: en-US
To: ffmpeg-devel@ffmpeg.org
References: <b4fb59b6-de3a-c011-8ea2-5595fca39568@mail.de>
 <3476fe9f-0433-99fa-0f0f-451f4062a7c8@mail.de>
From: Gyan Doshi <ffmpeg@gyani.pro>
In-Reply-To: <3476fe9f-0433-99fa-0f0f-451f4062a7c8@mail.de>
X-Content-Filtered-By: Mailman/MimeDel 2.1.29
Subject: Re: [FFmpeg-devel] [PATCH v2 2/4] ffmpeg: Add display_matrix option
X-BeenThere: ffmpeg-devel@ffmpeg.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: FFmpeg development discussions and patches <ffmpeg-devel.ffmpeg.org>
List-Unsubscribe: <https://ffmpeg.org/mailman/options/ffmpeg-devel>,
 <mailto:ffmpeg-devel-request@ffmpeg.org?subject=unsubscribe>
List-Archive: <https://ffmpeg.org/pipermail/ffmpeg-devel>
List-Post: <mailto:ffmpeg-devel@ffmpeg.org>
List-Help: <mailto:ffmpeg-devel-request@ffmpeg.org?subject=help>
List-Subscribe: <https://ffmpeg.org/mailman/listinfo/ffmpeg-devel>,
 <mailto:ffmpeg-devel-request@ffmpeg.org?subject=subscribe>
Reply-To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Content-Transfer-Encoding: 7bit
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Errors-To: ffmpeg-devel-bounces@ffmpeg.org
Sender: "ffmpeg-devel" <ffmpeg-devel-bounces@ffmpeg.org>
Archived-At: <https://master.gitmailbox.com/ffmpegdev/e91e857a-c95d-8778-e20d-17cb2201329e@gyani.pro/>
List-Archive: <https://master.gitmailbox.com/ffmpegdev/>
List-Post: <mailto:ffmpegdev@gitmailbox.com>



On 2022-08-16 01:32 am, Thilo Borgmann wrote:
>
>
> +    struct display_matrix_s {
> +        const AVClass *class;
> +        double  rotation;
> +        int     hflip;
> +        int     vflip;
> +    };

There should be a scale option too since the matrix encodes that 
transform as well. Ref. ISO/IEC 14496-12:2015 6.2.2

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".