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SubjectRe: [PATCH 1/4] ALSA: hda - hdmi: Add ATI/AMD multi-channel audio support
From
2013/10/1 Anssi Hannula <anssi.hannula@iki.fi>:
> ATI/AMD codecs do not support all the standard HDA HDMI/DP functions,
> instead various vendor-specific verbs are provided.

I've just tried my HD6970M (BARTS, DCE5) in my Samsung NP700G7A-S01PL.

> cat /proc/asound/card1/eld#0.0
monitor_present 1
eld_valid 1
monitor_name
connection_type HDMI
eld_version [0x2] CEA-861D or below
edid_version [0x0] no CEA EDID Timing Extension block present
manufacture_id 0x0
product_id 0x0
port_id 0x0
support_hdcp 0
support_ai 0
audio_sync_delay 0
speakers [0x5f] FL/FR LFE FC RL/RR RC RLC/RRC
sad_count 6
sad0_coding_type [0x1] LPCM
sad0_channels 8
sad0_rates [0x1ee0] 32000 44100 48000 88200 96000 176400 192000
sad0_bits [0xe0000] 16 20 24
sad1_coding_type [0x2] AC-3
sad1_channels 6
sad1_rates [0xe0] 32000 44100 48000
sad1_max_bitrate 640000
sad2_coding_type [0x7] DTS
sad2_channels 6
sad2_rates [0x6c0] 44100 48000 88200 96000
sad2_max_bitrate 1536000
sad3_coding_type [0xa] E-AC-3/DD+ (Dolby Digital Plus)
sad3_channels 8
sad3_rates [0xc0] 44100 48000
sad4_coding_type [0xb] DTS-HD
sad4_channels 8
sad4_rates [0x1ec0] 44100 48000 88200 96000 176400 192000
sad5_coding_type [0xc] MLP (Dolby TrueHD)
sad5_channels 8
sad5_rates [0x1ec0] 44100 48000 88200 96000 176400 192000

Command:
speaker-test -D hdmi:CARD=Generic,DEV=0 -c8 -r192000 -F S16_LE
works, I just have 5.1 (not 7.1), so Side left goes to the Read left
and Side right goes to the Rear right. But they were working!

Next I've used howto from
http://phoronix.com/forums/showthread.php?27348-TrueHD-DTS-HD-E-AC3-Over-HDMI-On-Linux
to test DTS MA and TrueHD.

In the file from howto I've used:
card Generic
and then tested:

zajec@linux-samsung700g7a:~> aplay -D hdmihdtest0 -c8 -fs16_le
-r192000 thd.spdif
Playing raw data 'thd.spdif' : Signed 16 bit Little Endian, Rate
192000 Hz, Channels 8
zajec@linux-samsung700g7a:~> aplay -D hdmihdtest0 -c8 -fs16_le
-r192000 dts.spdif
Playing raw data 'dts.spdif' : Signed 16 bit Little Endian, Rate
192000 Hz, Channels 8

Hooray! I got
DOLBY HD
and
DTS-HD MA
on my Denon 1912 display!

Now the main question... do you have any experience on using DTS-HD MA
(or TrueHD) with mplayer? :|


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