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 5F17D4B79F for ; Thu, 13 Jun 2024 07:28:00 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 7D8E368D8A8; Thu, 13 Jun 2024 10:27:58 +0300 (EEST) Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id 25F9668D8A8 for ; Thu, 13 Jun 2024 10:27:52 +0300 (EEST) Received: by mail.gandi.net (Postfix) with ESMTPSA id 7807540006 for ; Thu, 13 Jun 2024 07:27:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=niedermayer.cc; s=gm1; t=1718263671; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=uTNPL21htIswPejPdpoWpvAz5m4nBe6F+dJ2x3As7HU=; b=Ycq6gxkTi8xxDn+C9W36Ba/K9edybUff8oUBQfCaG6nPjYWcBnw7Pp5mxA42yfN/LRIkSo j+KUjXrqPZ1vMRAtUbM/DxnjKNNEdx8AlK3ksDo8AXk0Qz407pKjisrU0iVjpHnn5WlKX6 w+no8Aq0q3Fet0jD7/9VMb94skB/fg/ePFeuEm8UOFVibicg8vUoGdBJByFcL5IrAHhJbi 1hSlN33cDTBLG/2XfpQiGBJ87QdmMkP7SbIMFyiZj3hmB7tEkQks0XUVraeEir6ICsabuH 57JEJJMG1L5yPJ0mjYohQ4fLwI71MgCsPsBolaqxD+7XWJ/pEJ+Px43oEckxkA== Date: Thu, 13 Jun 2024 09:27:50 +0200 From: Michael Niedermayer To: FFmpeg development discussions and patches Message-ID: <20240613072750.GA2821752@pb2> References: MIME-Version: 1.0 In-Reply-To: X-GND-Sasl: michael@niedermayer.cc Subject: Re: [FFmpeg-devel] [PATCH 37/57] avcodec/mpegutils: Don't output wrong mb skip values 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: multipart/mixed; boundary="===============3789405441719597317==" Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: --===============3789405441719597317== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="RUXOBVMrEGVtsrXo" Content-Disposition: inline --RUXOBVMrEGVtsrXo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Jun 12, 2024 at 03:48:33PM +0200, Andreas Rheinhardt wrote: > The earlier code had two problems: > 1. For reference frames that are not directly output (happens unless > low_delay is set), the mb skip values referred to the next reference > frame to be decoded. > 2. For non-reference frames, every macroblock was always considered > skipped. > This makes the output (worse than) useless; that no one ever > complained about this shows that this feature is not really used. > It is therefore removed. I used it for statistical purposes long ago, seeing how much blocks where skiped and for that a +-1 frame difference is inconsequantal. Also i understood that B frame are handled differently, its an internal bitstream related number after all thx [...] --=20 Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Some people wanted to paint the bikeshed green, some blue and some pink. People argued and fought, when they finally agreed, only rust was left. --RUXOBVMrEGVtsrXo Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iF0EABEKAB0WIQSf8hKLFH72cwut8TNhHseHBAsPqwUCZmqfbwAKCRBhHseHBAsP q4G7AJ937avdVP/AUGu2y5ruj2z1xwB50QCfalOh3Ya8J/IVhvpl/mc3GHD3GxI= =UBVA -----END PGP SIGNATURE----- --RUXOBVMrEGVtsrXo-- --===============3789405441719597317== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ 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". --===============3789405441719597317==--