From patchwork Tue Aug 6 10:26:38 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Shengjiu Wang X-Patchwork-Id: 818450 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 alsa0.perex.cz (unknown [77.48.224.243]) (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 24871C3DA64 for ; Tue, 6 Aug 2024 10:49:35 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 4FB373AD8; Tue, 6 Aug 2024 12:49:12 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 4FB373AD8 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1722941362; bh=D8fxv6K1FdcjQMOVGh2RFrv2mloy+4n5K/2MJEyk4+k=; h=From:To:Subject:Date:In-Reply-To:References:List-Id:List-Archive: List-Help:List-Owner:List-Post:List-Subscribe:List-Unsubscribe: From; b=D0CLH1fl/N2R+b7lOIHROlcRmszgOnJelHiIRSz8TlfrShahXDicJe5IpXb5liWue DL9Vsu7/mf/uTCBImwKYZRcEirRhVXKUmVMAivSE3yptpi5n2ZnTlwlwobAvJGQyLC 27nInQ3kfd85kEQKLD+Pk8J0Ncq2aMSS5+3q2ZkE= Received: by alsa1.perex.cz (Postfix, from userid 50401) id 56A2BF805F2; Tue, 6 Aug 2024 12:48:25 +0200 (CEST) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id 58329F80606; Tue, 6 Aug 2024 12:48:24 +0200 (CEST) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 9B1B0F80579; Tue, 6 Aug 2024 12:47:58 +0200 (CEST) Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) (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 59F89F80236 for ; Tue, 6 Aug 2024 12:47:35 +0200 (CEST) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 59F89F80236 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 07C97200E48; Tue, 6 Aug 2024 12:47:35 +0200 (CEST) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id C2BDA200E29; Tue, 6 Aug 2024 12:47:34 +0200 (CEST) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 14B3A180226C; Tue, 6 Aug 2024 18:47:33 +0800 (+08) From: Shengjiu Wang To: vkoul@kernel.org, perex@perex.cz, tiwai@suse.com, alsa-devel@alsa-project.org, linux-sound@vger.kernel.org, linux-kernel@vger.kernel.org, shengjiu.wang@gmail.com, Xiubo.Lee@gmail.com, festevam@gmail.com, nicoleotsuka@gmail.com, lgirdwood@gmail.com, broonie@kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [RFC PATCH 1/6] ALSA: compress: add Sample Rate Converter codec support Date: Tue, 6 Aug 2024 18:26:38 +0800 Message-Id: <1722940003-20126-2-git-send-email-shengjiu.wang@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1722940003-20126-1-git-send-email-shengjiu.wang@nxp.com> References: <1722940003-20126-1-git-send-email-shengjiu.wang@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Message-ID-Hash: HQQVJVJIWJBBGZRGBAREYVBOMZCXOHII X-Message-ID-Hash: HQQVJVJIWJBBGZRGBAREYVBOMZCXOHII X-MailFrom: shengjiu.wang@nxp.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: Add Sample Rate Converter(SRC) codec support, define the output format and rate for SRC. Signed-off-by: Shengjiu Wang --- include/uapi/sound/compress_offload.h | 2 ++ include/uapi/sound/compress_params.h | 9 ++++++++- 2 files changed, 10 insertions(+), 1 deletion(-) diff --git a/include/uapi/sound/compress_offload.h b/include/uapi/sound/compress_offload.h index 98772b0cbcb7..8b2b72f94e26 100644 --- a/include/uapi/sound/compress_offload.h +++ b/include/uapi/sound/compress_offload.h @@ -112,10 +112,12 @@ struct snd_compr_codec_caps { * end of the track * @SNDRV_COMPRESS_ENCODER_DELAY: no of samples inserted by the encoder at the * beginning of the track + * @SNDRV_COMPRESS_SRC_RATIO_MOD: Resampling Ratio Modifier for sample rate converter */ enum sndrv_compress_encoder { SNDRV_COMPRESS_ENCODER_PADDING = 1, SNDRV_COMPRESS_ENCODER_DELAY = 2, + SNDRV_COMPRESS_SRC_RATIO_MOD = 3, }; /** diff --git a/include/uapi/sound/compress_params.h b/include/uapi/sound/compress_params.h index ddc77322d571..0843773ea6b4 100644 --- a/include/uapi/sound/compress_params.h +++ b/include/uapi/sound/compress_params.h @@ -43,7 +43,8 @@ #define SND_AUDIOCODEC_BESPOKE ((__u32) 0x0000000E) #define SND_AUDIOCODEC_ALAC ((__u32) 0x0000000F) #define SND_AUDIOCODEC_APE ((__u32) 0x00000010) -#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_APE +#define SND_AUDIOCODEC_SRC ((__u32) 0x00000011) +#define SND_AUDIOCODEC_MAX SND_AUDIOCODEC_SRC /* * Profile and modes are listed with bit masks. This allows for a @@ -324,6 +325,11 @@ struct snd_dec_ape { __u32 seek_table_present; } __attribute__((packed, aligned(4))); +struct snd_dec_src { + __u32 format_out; + __u32 rate_out; +} __attribute__((packed, aligned(4))); + union snd_codec_options { struct snd_enc_wma wma; struct snd_enc_vorbis vorbis; @@ -334,6 +340,7 @@ union snd_codec_options { struct snd_dec_wma wma_d; struct snd_dec_alac alac_d; struct snd_dec_ape ape_d; + struct snd_dec_src src; } __attribute__((packed, aligned(4))); /** struct snd_codec_desc - description of codec capabilities