From: Anssi Hannula <anssi.hannula@iki.fi>
To: Takashi Iwai <tiwai@suse.de>
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 [thread overview]
Message-ID: <1280831338-4596-1-git-send-email-anssi.hannula@iki.fi> (raw)
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(-)
next reply other threads:[~2010-08-03 10:38 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-03 10:28 Anssi Hannula [this message]
2010-08-03 10:28 ` [PATCH 1/2] ALSA: hda - Set Stream Type in Stream Format according to AES0 Anssi Hannula
2010-08-03 10:28 ` [PATCH 2/2] ALSA: hda - Add support for HDMI HBR passthrough Anssi Hannula
2010-08-03 10:59 ` [PATCH 0/2] ALSA: hda - support " Takashi Iwai
2010-08-03 11:04 ` Anssi Hannula
2010-08-03 11:04 ` Takashi Iwai
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