I noticed the patch-nvhdmi.c still contains very few formats.
It's a pity since I tested this simple patch and it's able to reproduce 192khz
7.1 channels with 32bit resolution.
Note: I noticed this works only when video output is set to 1080p. With 576p
or 720p the sampling rate is limited to 48Khz.
BEWARE!! There is an annoying bug in nvidia drivers >=190.xx. Multichannel
audio is correctly initialized but only stereo audio is sent.
*** linux-2.6.31-gentoo-r6/sound/pci/hda/patch_nvhdmi.c 2009-09-10 00:13:59.000000000 +0200
--- linux/sound/pci/hda/patch_nvhdmi.c 2009-09-07 16:44:34.000000000 +0200
***************
*** 258,267 ****
.channels_min = 2,
.channels_max = 8,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_48000,
! .maxbps = 16,
! .formats = SNDRV_PCM_FMTBIT_S16_LE,
! .ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_8ch,
.prepare = nvhdmi_dig_playback_pcm_prepare_8ch
--- 258,267 ----
.channels_min = 2,
.channels_max = 8,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000,
! .maxbps = 24,
! .formats = SNDRV_PCM_FMTBIT_S16_LE|SNDRV_PCM_FMTBIT_S32_LE|SNDRV_PCM_FMTBIT_S32_LE,
! .ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_8ch,
.prepare = nvhdmi_dig_playback_pcm_prepare_8ch
***************
*** 273,281 ****
.channels_min = 2,
.channels_max = 2,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_48000,
! .maxbps = 16,
! .formats = SNDRV_PCM_FMTBIT_S16_LE,
.ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_2ch,
--- 273,281 ----
.channels_min = 2,
.channels_max = 2,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000,
! .maxbps = 24,
! .formats = SNDRV_PCM_FMTBIT_S16_LE|SNDRV_PCM_FMTBIT_S32_LE|SNDRV_PCM_FMTBIT_S32_LE,
.ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_2ch,
*** linux-2.6.31-gentoo-r6/sound/pci/hda/patch_nvhdmi.c 2009-09-10 00:13:59.000000000 +0200
--- linux/sound/pci/hda/patch_nvhdmi.c 2009-09-07 16:44:34.000000000 +0200
***************
*** 258,267 ****
.channels_min = 2,
.channels_max = 8,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_48000,
! .maxbps = 16,
! .formats = SNDRV_PCM_FMTBIT_S16_LE,
! .ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_8ch,
.prepare = nvhdmi_dig_playback_pcm_prepare_8ch
--- 258,267 ----
.channels_min = 2,
.channels_max = 8,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_48000|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000,
! .maxbps = 24,
! .formats = SNDRV_PCM_FMTBIT_S16_LE|SNDRV_PCM_FMTBIT_S32_LE|SNDRV_PCM_FMTBIT_S32_LE,
! .ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_8ch,
.prepare = nvhdmi_dig_playback_pcm_prepare_8ch
***************
*** 273,281 ****
.channels_min = 2,
.channels_max = 2,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_48000,
! .maxbps = 16,
! .formats = SNDRV_PCM_FMTBIT_S16_LE,
.ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_2ch,
--- 273,281 ----
.channels_min = 2,
.channels_max = 2,
.nid = Nv_Master_Convert_nid,
! .rates = SNDRV_PCM_RATE_44100|SNDRV_PCM_RATE_96000|SNDRV_PCM_RATE_192000,
! .maxbps = 24,
! .formats = SNDRV_PCM_FMTBIT_S16_LE|SNDRV_PCM_FMTBIT_S32_LE|SNDRV_PCM_FMTBIT_S32_LE,
.ops = {
.open = nvhdmi_dig_playback_pcm_open,
.close = nvhdmi_dig_playback_pcm_close_2ch,
------------------------------------------------------------------------------
Return on Information:
Google Enterprise Search pays you back
Get the facts.
http://p.sf.net/sfu/google-dev2dev
_______________________________________________
Alsa-user mailing list
Alsa-user@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-user
