From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D0CDCC38142 for ; Tue, 31 Jan 2023 18:43:44 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1pMvbQ-0006Hf-Vg; Tue, 31 Jan 2023 13:43:33 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1pMvbO-0006E7-EY for qemu-devel@nongnu.org; Tue, 31 Jan 2023 13:43:30 -0500 Received: from mail-wm1-x329.google.com ([2a00:1450:4864:20::329]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1pMvbM-00087V-Ld for qemu-devel@nongnu.org; Tue, 31 Jan 2023 13:43:30 -0500 Received: by mail-wm1-x329.google.com with SMTP id m16-20020a05600c3b1000b003dc4050c94aso8544630wms.4 for ; Tue, 31 Jan 2023 10:43:28 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:from:to:cc:subject:date :message-id:reply-to; bh=ALN+kcbJfrEO0WEdICpZPBIIa0subLrA4EDlbByihrc=; b=KuSc32Ypviy9I8C097yRKeYxbKLu/E81Yya7MXWi8Al6RAPG89IwPG+jSkpbJWeHFg troyhlkPH77cdMCWS3zU/UZWYvf6wxqzf1x4Alcmtz/T3jjBl/gDvgw6XejXuOnkPWyo AwnuISlToXdE7wHx4q8RUG/5clV2a7vusHlPro9oRm6w36rAuqfV/eZTrKI1ieFJuV38 GYST4pgZZg55mAQ5V9sNMCGiUQSEUteDYmrDM2qpUmQ6oU/A8oEKByA86RCEhX4hIrlU pqo+iYxgzbxHax3odbBqpLbxjCHqell+XZgFhV/WIlS+hmbuDc8hCh8431+J0Bjx3QvE EOaA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:in-reply-to:date :subject:cc:to:from:user-agent:references:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=ALN+kcbJfrEO0WEdICpZPBIIa0subLrA4EDlbByihrc=; b=X0oU9txvxtTOuGTWrnfq/ERpWTz2peWSYZJv+heV2y2g0WDOexiQZJMSXFzxusI6c6 zEGIS7zGss7VYUMRIR83+Sf8BFUlygY9anmcmrwCml0kefhcOvrmhsFxcD4OcnTA8Weo W+DQ8OVbt+sVjtKSWKBy7LiFLtIfaVlk+qoIbJYJE9Y+qP6kP9ChKEuhFpi7Z7SbIDq2 CT7fddba1fT/QJ7bk75UfcFTIBPfYRm+9Pf3ID/BtqwUILV79J6/XH5mnBSZ0Fzp3plS nOYKupWWz+NMlUfpNbcOX+G2FoPVcIpDT8SFIpaadiS3g2wcUTC3sokm1+ZlGS6UC6wf AutQ== X-Gm-Message-State: AO0yUKVdzq0GRcsi7vlW5gC3avo0rBaL0jFFmvsM3LgX6hWxiaYTO9vB wMQ2Dx2NlqfQcTg5rKeIIZlP8g== X-Google-Smtp-Source: AK7set+cHkUhxqdesbEse+CHfKUQBdkSW2BTcLs3pd/5hVFgUjXPuq9wtFd9zmAZJsKgHvlyAFadig== X-Received: by 2002:a05:600c:3541:b0:3d3:43ae:4d10 with SMTP id i1-20020a05600c354100b003d343ae4d10mr425770wmq.11.1675190607079; Tue, 31 Jan 2023 10:43:27 -0800 (PST) Received: from zen.linaroharston ([185.81.254.11]) by smtp.gmail.com with ESMTPSA id x9-20020a05600c21c900b003dc434b39c7sm3440285wmj.0.2023.01.31.10.43.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 31 Jan 2023 10:43:26 -0800 (PST) Received: from zen (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 1FA0B1FFB7; Tue, 31 Jan 2023 18:43:26 +0000 (GMT) References: <874js661lu.fsf@linaro.org> User-agent: mu4e 1.9.18; emacs 29.0.60 From: Alex =?utf-8?Q?Benn=C3=A9e?= To: Stefan Hajnoczi Cc: chouhan.shreyansh2702@gmail.com, Gerd Hoffmann , Laurent Vivier , Anton Yakovlev , qemu-devel@nongnu.org, =?utf-8?Q?Marc-A?= =?utf-8?Q?ndr=C3=A9?= Lureau Subject: Re: virtio-sound Google Summer of Code project? Date: Tue, 31 Jan 2023 18:42:50 +0000 In-reply-to: Message-ID: <87h6w6tui9.fsf@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2a00:1450:4864:20::329; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x329.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Stefan Hajnoczi writes: > On Tue, 31 Jan 2023 at 12:43, Alex Benn=C3=A9e w= rote: >> >> >> Stefan Hajnoczi writes: >> >> > On Sun, 29 Jan 2023 at 17:10, Stefan Hajnoczi wro= te: >> >> >> >> Hi Shreyansh, Gerd, and Laurent, >> >> The last virtio-sound RFC was sent in February last year. It was a >> >> spare time project. Understandably it's hard to complete the whole >> >> thing on weekends, evenings, etc. So I wanted to suggest relaunching >> >> the virtio-sound effort as a Google Summer of Code project. >> >> >> >> Google Summer of Code is a 12-week full-time remote work internship. >> >> The intern would be co-mentored by some (or all) of us. The project >> >> goal would be to merge virtio-sound with support for both playback and >> >> capture. Advanced features for multi-channel audio, etc can be stretch >> >> goals. >> >> >> >> I haven't looked in detail at the patches from February 2022, so I >> >> don't know the exact state and whether there is enough work remaining >> >> for a 12-week internship. What do you think? >> > >> > Adding Anton. >> > >> > I have updated the old wiki page for this project idea and added it to >> > the 2023 ideas list: >> > https://wiki.qemu.org/Internships/ProjectIdeas/VirtioSound >> > >> > Please let me know if you wish to co-mentor this project! >> >> I'd be happy to help - although if someone was rust inclined I'd also be >> happy to mentor a rust-vmm vhost-user implementation of VirtIO sound. > > Maybe Gerd can tell us about the QEMU audio subsystem features that > may be lost if developing a standalone vhost-user device. > > Two things come to mind: > 1. May not run on all host OSes that QEMU supports if it supports > fewer native audio APIs than QEMU. > 2. May not support forwarding audio to remote desktop solutions that > stream audio over the network. I don't know if/how this works with > VNC/RDP/Spice, but a separate vhost-user process will need to do extra > work to send the audio over the remote desktop connection. Hmm good point. Maybe a stretch goal? > > I have CCed Marc-Andr=C3=A9 for information on streaming audio over remot= e desktop. > > Stefan --=20 Alex Benn=C3=A9e Virtualisation Tech Lead @ Linaro