From patchwork Sun Jan 10 10:02:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Volker_R=C3=BCmelin?= X-Patchwork-Id: 12009003 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CCC01C433E0 for ; Sun, 10 Jan 2021 10:17:48 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 4D90923975 for ; Sun, 10 Jan 2021 10:17:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4D90923975 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=t-online.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:40160 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kyXn9-0003Gj-GP for qemu-devel@archiver.kernel.org; Sun, 10 Jan 2021 05:17:47 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:57832) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kyXZN-0002Ip-Aa for qemu-devel@nongnu.org; Sun, 10 Jan 2021 05:03:33 -0500 Received: from mailout04.t-online.de ([194.25.134.18]:55038) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kyXZJ-0005b7-7r for qemu-devel@nongnu.org; Sun, 10 Jan 2021 05:03:33 -0500 Received: from fwd39.aul.t-online.de (fwd39.aul.t-online.de [172.20.27.138]) by mailout04.t-online.de (Postfix) with SMTP id 048DB41AA781; Sun, 10 Jan 2021 11:03:28 +0100 (CET) Received: from linpower.localnet (EAVH5mZToh23QiYENvIVgbpDE3zBdDG-aOxfNzdjuaMHUxE8F1isBX4h+uA+litZrS@[93.236.152.29]) by fwd39.t-online.de with (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384 encrypted) esmtp id 1kyXZG-2rw17A0; Sun, 10 Jan 2021 11:03:26 +0100 Received: by linpower.localnet (Postfix, from userid 1000) id 102BD2006C2; Sun, 10 Jan 2021 11:02:40 +0100 (CET) From: =?utf-8?q?Volker_R=C3=BCmelin?= To: Gerd Hoffmann Subject: [PATCH 19/23] paaudio: send recorded data in smaller chunks Date: Sun, 10 Jan 2021 11:02:35 +0100 Message-Id: <20210110100239.27588-19-vr_qemu@t-online.de> X-Mailer: git-send-email 2.26.2 In-Reply-To: <9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de> References: <9315afe5-5958-c0b4-ea1e-14769511a9d5@t-online.de> MIME-Version: 1.0 X-ID: EAVH5mZToh23QiYENvIVgbpDE3zBdDG-aOxfNzdjuaMHUxE8F1isBX4h+uA+litZrS X-TOI-EXPURGATEID: 150726::1610273007-00000BD0-353D45A1/0/0 CLEAN NORMAL X-TOI-MSGID: cf1b0246-e2bf-474a-8fff-4524f33d5335 Received-SPF: none client-ip=194.25.134.18; envelope-from=volker.ruemelin@t-online.de; helo=mailout04.t-online.de X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: QEMU , =?utf-8?b?Wm9sdMOhbiBLxZF2w6Fnw7M=?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Tell PulseAudio to send recorded audio data in smaller chunks than timer_period, so there's a good chance that qemu can read recorded audio data every time it looks for new data. PulseAudio tries to send buffer updates at a fragsize / 2 rate. With fragsize = timer_period / 2 * 3 the update rate is 75% of timer_period. The lower limit for the recording buffer size maxlength is fragsize * 2. Signed-off-by: Volker Rümelin --- audio/paaudio.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/audio/paaudio.c b/audio/paaudio.c index 3186868294..1e6f4448ce 100644 --- a/audio/paaudio.c +++ b/audio/paaudio.c @@ -568,8 +568,9 @@ static int qpa_init_in(HWVoiceIn *hw, struct audsettings *as, void *drv_opaque) ss.channels = as->nchannels; ss.rate = as->freq; - ba.fragsize = pa_usec_to_bytes(ppdo->latency, &ss); - ba.maxlength = pa_usec_to_bytes(ppdo->latency * 2, &ss); + ba.fragsize = pa_usec_to_bytes((g->dev->timer_period >> 1) * 3, &ss); + ba.maxlength = pa_usec_to_bytes( + MAX(ppdo->latency, g->dev->timer_period * 3), &ss); ba.minreq = -1; ba.prebuf = -1;