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 3A9A546571 for ; Thu, 19 Oct 2023 15:51:05 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id BB06368CAF9; Thu, 19 Oct 2023 18:51:02 +0300 (EEST) Received: from mail0.khirnov.net (red.khirnov.net [176.97.15.12]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 5FF5F68CA50 for ; Thu, 19 Oct 2023 18:50:56 +0300 (EEST) Received: from localhost (localhost [IPv6:::1]) by mail0.khirnov.net (Postfix) with ESMTP id 1F424240498 for ; Thu, 19 Oct 2023 17:50:56 +0200 (CEST) Received: from mail0.khirnov.net ([IPv6:::1]) by localhost (mail0.khirnov.net [IPv6:::1]) (amavis, port 10024) with ESMTP id dzghvSl5AwGS for ; Thu, 19 Oct 2023 17:50:55 +0200 (CEST) Received: from lain.khirnov.net (lain.khirnov.net [IPv6:2001:67c:1138:4306::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "lain.khirnov.net", Issuer "smtp.khirnov.net SMTP CA" (verified OK)) by mail0.khirnov.net (Postfix) with ESMTPS id 9FB2C2400FF for ; Thu, 19 Oct 2023 17:50:55 +0200 (CEST) Received: by lain.khirnov.net (Postfix, from userid 1000) id 81BA01601B9; Thu, 19 Oct 2023 17:50:55 +0200 (CEST) From: Anton Khirnov To: FFmpeg development discussions and patches In-Reply-To: References: <169770476600.32606.17075970689497459215@lain.khirnov.net> Mail-Followup-To: FFmpeg development discussions and patches Date: Thu, 19 Oct 2023 17:50:55 +0200 Message-ID: <169773065550.30698.16784083269850559997@lain.khirnov.net> User-Agent: alot/0.8.1 MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH 1/2] lavc/internal: add skip_samples2 field 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: Quoting Lynne (2023-10-19 14:49:46) > Oct 19, 2023, 10:39 by anton@khirnov.net: > > > Current interaction between AV_FRAME_DATA_SKIP_SAMPLES and > > AVCodecContext.skip_samples seems unncecessarily complicated to me and > > you're just making it worse. > > > > Is there any reason we can't drop AVCodecContext.skip_samples entirely > > and signal it purely through side data? Then decoders could fully > > control everything they wish by modifying side data on output frames. > > > > You mean let the decoder parse skip samples side data, > strip it from the packet, and attach a new side data to the frame? Not from the packet - that should be const for decoders. The generic code currently translates AV_PKT_DATA_SKIP_SAMPLES from the packet to the frame in ff_get_buffer(). The decoder can then override that in the frame. -- Anton Khirnov _______________________________________________ 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".