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 4F53244280 for ; Sun, 4 Sep 2022 17:48:37 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 5C83468B8CF; Sun, 4 Sep 2022 20:48:34 +0300 (EEST) Received: from w4.tutanota.de (w4.tutanota.de [81.3.6.165]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTPS id A835A68B680 for ; Sun, 4 Sep 2022 20:48:27 +0300 (EEST) Received: from w3.tutanota.de (unknown [192.168.1.164]) by w4.tutanota.de (Postfix) with ESMTP id 00826106019A for ; Sun, 4 Sep 2022 17:48:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1662313706; s=s1; d=lynne.ee; h=From:From:To:To:Subject:Subject:Content-Description:Content-ID:Content-Type:Content-Type:Content-Transfer-Encoding:Content-Transfer-Encoding:Cc:Date:Date:In-Reply-To:In-Reply-To:MIME-Version:MIME-Version:Message-ID:Message-ID:Reply-To:References:References:Sender; bh=EJiQL8ryi2hfeqUy67KI45u+J5hSVoOeZZQkv+mnM4U=; b=ghaW84wQLFA1mVUA4OHH7U87TNxp6RaFNnpzl9kkQ/hho/caWwft1xDpdxPUqXEb MsSt00GtK2FRpFr932Y50xARMj87P1w8HmmJYA2Uvm8sPDUkR6PSk2ZfEGn1BihBCDT XzyHtxtE9lurBSn1tivGKKH03Z+t028Q5YaNGTC2rJnUlZgbY+zlBxLmMSzUbKtaBU6 ILvcX77SVudjWLlMGTZmdgtrzXCg7r70WGSZD3PXv6jxobXsbfYP3H3j5lo4pTt4OU1 PhSWYwkyqkj4p7FtyIc2f3WGCWt5b9xm/Ip6wNh06Efv3iGUSjjuvE0dZExUj2Jt1KX PNSCZNoYbw== Date: Sun, 4 Sep 2022 19:48:26 +0200 (CEST) From: Lynne To: FFmpeg development discussions and patches Message-ID: In-Reply-To: <3372981.QJadu78ljV@basile.remlab.net> References: <3372981.QJadu78ljV@basile.remlab.net> MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCHv2 0/10] RISC-V V floating point DSP 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: Sep 4, 2022, 15:54 by remi@remlab.net: > The following changes since commit b6e8fc1c201d58672639134a737137e1ba7b55fe: > > avcodec/speexdec: improve support for speex in non-ogg (2022-09-04 11:31:57 +0200) > > are waiting thorough bashing at your express convenience up to: > > riscv: float vector dot product with RVV (2022-09-04 16:45:38 +0300) > > Changes since v1: > > - Removed stray define. > - Fixed mismatch between byte and element size in mul-scalar. > - Added fmul, fac, dmul, dmac, fmul-add, fmul-reverse, fmul-window. > - Added float butterfly and dot product. > > All operations are unrolled to the maximum group size (8), with the > exception of overlap/add. The later seems to require a minimum of 6 > vectors (maybe 5 by extremely careful ordering), so the group size is > only 4. > > The pointer arithmetic could be slightly optimised with SH2ADD and > SH3ADD instructions from the Zvba extension. This would require more > conditional code, or requiring support for Zvba for probably neglible > performance gains though. > Did you test on real hardware or a VM? If the former, what does checkasm --bench report? _______________________________________________ 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".