Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756040Ab0HCKiJ (ORCPT ); Tue, 3 Aug 2010 06:38:09 -0400 Received: from saarni.dnainternet.net ([83.102.40.136]:50167 "EHLO saarni.dnainternet.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755983Ab0HCKiE (ORCPT ); Tue, 3 Aug 2010 06:38:04 -0400 X-Spam-Flag: NO X-Spam-Score: -1.36 From: Anssi Hannula To: Takashi Iwai Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] ALSA: hda - support HDMI HBR passthrough Date: Tue, 3 Aug 2010 13:28:56 +0300 Message-Id: <1280831338-4596-1-git-send-email-anssi.hannula@iki.fi> X-Mailer: git-send-email 1.7.2 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1270 Lines: 31 Hi all! This patchset adds support for passing through IEC 61937 encapsulated compressed audio at high bitrates (i.e. those over 6.144Mbps). At least TrueHD and DTS-HD are such formats. I've tested this using an NVIDIA hdmi codec and the following ffmpeg patch which adds support for TrueHD in its IEC 61937 muxer: http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/2010-August/094317.html One needs to set the AES0 & 0x02 (non-audio) bit during playback so that the data is not transmitted as normal 8 channel PCM audio. --- Anssi Hannula (2): ALSA: hda - Set Stream Type in Stream Format according to AES0 ALSA: hda - Add support for HDMI HBR passthrough sound/pci/hda/hda_codec.c | 6 ++++- sound/pci/hda/hda_codec.h | 6 ++++- sound/pci/hda/hda_intel.c | 3 +- sound/pci/hda/patch_hdmi.c | 40 ++++++++++++++++++++++++++++++++++++++- sound/pci/hda/patch_intelhdmi.c | 3 +- sound/pci/hda/patch_nvhdmi.c | 3 +- 6 files changed, 53 insertions(+), 8 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/