Re: [PATCH 0/2] ALSA: hda - support HDMI HBR passthrough
From: Takashi Iwai
Date: Tue Aug 03 2010 - 06:59:16 EST
At Tue, 3 Aug 2010 13:28:56 +0300,
Anssi Hannula wrote:
> 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:
> 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.
Thanks, I applied both patches.
There are some magic numbers there like 0x8000, and I'm going to define
> 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(-)
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