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 X-Spam-Level: X-Spam-Status: No, score=-2.2 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 AF4EAC43331 for ; Fri, 27 Mar 2020 16:01:37 +0000 (UTC) Received: from alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 3C14620716 for ; Fri, 27 Mar 2020 16:01:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=alsa-project.org header.i=@alsa-project.org header.b="sVehdO+F"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=axis.com header.i=@axis.com header.b="dINhnmPb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3C14620716 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=axis.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=alsa-devel-bounces@alsa-project.org Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id C001516DF; Fri, 27 Mar 2020 17:00:44 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz C001516DF DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1585324894; bh=MX+mORkILjmUZSMVEv3Ioa9yslIfkIHYD+8NZ2isLFg=; h=Date:From:To:Subject:References:In-Reply-To:Cc:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From; b=sVehdO+F8J7CeD2T6H0ig5j7y7djgL6XSXaCGPCe3vWSmtBVn9GbAgyFcTuPLxtBl Aa/szAvyMlahp9rQ6o2MlxiEBDjG+VrgaGN6SqtxMJxySvgI3gJ5jdBziV5Hr7YAxh VNKQIDxdmKQ+9UZzSnboFOhre4N3OvHytRvfI7P4= Received: from alsa1.perex.cz (localhost.localdomain [127.0.0.1]) by alsa1.perex.cz (Postfix) with ESMTP id EE8CCF80158; Fri, 27 Mar 2020 16:50:21 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 0CF2CF8015A; Fri, 27 Mar 2020 16:50:20 +0100 (CET) Received: from smtp1.axis.com (smtp1.axis.com [195.60.68.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa1.perex.cz (Postfix) with ESMTPS id F0CDAF80147 for ; Fri, 27 Mar 2020 16:50:16 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz F0CDAF80147 Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key) header.d=axis.com header.i=@axis.com header.b="dINhnmPb" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axis.com; l=879; q=dns/txt; s=axis-central1; t=1585324218; x=1616860218; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=tUIZ2TlHSplVOSoFJF5jbQyDhEQ5ZLZTcY52D93ZBxU=; b=dINhnmPb3/LiBNWRhw/3C/j8g8M3PyNPOdWGfrF1QegHbaNCSRUu6xOg in0eBySAgzZbzk25jwk3VXPhE923K+xkAe9Kq5D9c26iVFDqi4MTmqWu3 NV+n6Bv9KI06dINSYvA5LZq2Q7Z7oxd2tr+QsVi/L/kNbkRBkfsE7TxW8 BxNJQtVlNo1g2RDo+KwvOmw0fn16WCvpWRatsJ7JriRIuJeCOIgjBWjEl jZTsrbIpQm6Mbd7cyvmZOgrsld8XSyrzG+it3NL/lGYm2ycM7qaCmiLu6 gwQj6tWnKQyyNg/D8JdUnDjSLluVYgxaetyUu9iJh54heiDcMj8wgyJkq g==; IronPort-SDR: FIxgiDnS3+EMgMl6ypl4iztES7WU6efZqhC7D4DPH8H5PJkOQMG4juf4j0VH3IDOykRIurg82R UFcml4+bjyuyfgq24OgPfYGcblUnozt7uPbCcZvrJZnAaoSoHZwHJyGpYkMPQ1EAwJJUPaVoJZ yFLOyMv60ONQN+Yb/f/vaudDLyTOI/XGwT2BJsGKsZXry5AlxXlt/QhUKr9UWYprX69FLGUaS7 VxzmtA2B503gk08HmU3l7RGnTgcq+lzLYBnXFumMeCmXXYfiWbpA6jKxmpFYzFVa+qDgfGsBAb Y1w= X-IronPort-AV: E=Sophos;i="5.72,313,1580770800"; d="scan'208";a="7012894" Date: Fri, 27 Mar 2020 16:50:13 +0100 From: Jonas Holmberg To: Subject: Re: route and chmap Message-ID: <20200327155013.GA593298@axis.com> References: <20200326134110.GA3784158@axis.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Disposition: inline In-Reply-To: <20200326134110.GA3784158@axis.com> User-Agent: Mutt/1.10.1 (2018-07-13) Cc: tiwai@suse.de X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" CC Takashi. On Thu, Mar 26, 2020 at 02:41:11PM +0100, Jonas Holmberg wrote: > Hi, > I use the route plugin to copy mono to both FL and FR (front left and > front right stereo) of the slave during playback. When get_chmap() is > called in the route plugin it will call get_chmap() of the slave, > which returns 2 channels with FL and FR positions, and then route > itself returns 1 channel with FL position. But the application that > called snd_pcm_get_chmap() on the playback device expected to get > position MONO instead of FL since the number of channels is 1. > > Is the application wrong in not accepting the chmap or should the > route plugin have changed position from FL to MONO? Is it possible to > add something to the config (asound.conf) to make FL become MONO in > the reply of get_chmap() or solve the problem in any other way? > > BR > /Jonas