From patchwork Tue Mar 1 19:13:01 2022 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: 12765087 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 7C8E6C433F5 for ; Tue, 1 Mar 2022 19:17:14 +0000 (UTC) Received: from localhost ([::1]:46250 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nP7zl-00085N-HC for qemu-devel@archiver.kernel.org; Tue, 01 Mar 2022 14:17:13 -0500 Received: from eggs.gnu.org ([209.51.188.92]:43194) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nP7w7-00057e-Pe for qemu-devel@nongnu.org; Tue, 01 Mar 2022 14:13:27 -0500 Received: from mailout06.t-online.de ([194.25.134.19]:60666) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nP7w4-0001om-E7 for qemu-devel@nongnu.org; Tue, 01 Mar 2022 14:13:26 -0500 Received: from fwd85.dcpf.telekom.de (fwd85.aul.t-online.de [10.223.144.111]) by mailout06.t-online.de (Postfix) with SMTP id D9EC718E1A; Tue, 1 Mar 2022 20:13:22 +0100 (CET) Received: from linpower.localnet ([46.86.48.20]) by fwd85.t-online.de with (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384 encrypted) esmtp id 1nP7w2-2MIID30; Tue, 1 Mar 2022 20:13:22 +0100 Received: by linpower.localnet (Postfix, from userid 1000) id F2B47200613; Tue, 1 Mar 2022 20:13:11 +0100 (CET) From: =?utf-8?q?Volker_R=C3=BCmelin?= To: Gerd Hoffmann Subject: [PATCH v3 05/15] paaudio: increase default latency to 46ms Date: Tue, 1 Mar 2022 20:13:01 +0100 Message-Id: <20220301191311.26695-5-vr_qemu@t-online.de> X-Mailer: git-send-email 2.34.1 In-Reply-To: <3d0bd2ac-e5b9-9cf6-c98f-c047390a3ec5@t-online.de> References: <3d0bd2ac-e5b9-9cf6-c98f-c047390a3ec5@t-online.de> MIME-Version: 1.0 X-TOI-EXPURGATEID: 150726::1646162002-00014AB5-8A63CDB0/0/0 CLEAN NORMAL X-TOI-MSGID: 6f4cb9f6-a138-42f7-a691-2527c075467e Received-SPF: none client-ip=194.25.134.19; envelope-from=volker.ruemelin@t-online.de; helo=mailout06.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_H2=-0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Cc: qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This is a patch to improve the pulseaudio playback experience. Asking pulseaudio for a playback latency of 15ms is quite demanding. Increase this to 46ms. The total playback latency now is 31ms larger. One of the next patches will reduce the total playback latency again by more than 46ms. Here is a quote from the PulseAudio Latency Control documentation: 'For the sake of (...) drop-out safety always make sure to pick the highest latency possible that fulfills your needs.' Signed-off-by: Volker Rümelin --- audio/paaudio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/audio/paaudio.c b/audio/paaudio.c index 75401d5391..9df1e69c08 100644 --- a/audio/paaudio.c +++ b/audio/paaudio.c @@ -744,7 +744,7 @@ static int qpa_validate_per_direction_opts(Audiodev *dev, { if (!pdo->has_latency) { pdo->has_latency = true; - pdo->latency = 15000; + pdo->latency = 46440; } return 1; }