* DRS support for AC97
@ 2005-08-23 6:25 Philip Prindeville
2005-08-23 7:43 ` Clemens Ladisch
0 siblings, 1 reply; 2+ messages in thread
From: Philip Prindeville @ 2005-08-23 6:25 UTC (permalink / raw)
To: alsa-devel
How much effort is involved in getting the AC97 to support
DRS? This might be a way to support 44.1kHz SPDIF
playback (albeit upsampled to 88.2kHz).
-Philip
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: DRS support for AC97
2005-08-23 6:25 DRS support for AC97 Philip Prindeville
@ 2005-08-23 7:43 ` Clemens Ladisch
0 siblings, 0 replies; 2+ messages in thread
From: Clemens Ladisch @ 2005-08-23 7:43 UTC (permalink / raw)
To: Philip Prindeville; +Cc: alsa-devel
Philip Prindeville wrote:
> How much effort is involved in getting the AC97 to support
> DRS?
Change snd_ac97_set_rate and set_spdif_rate appropriately, make some
other changes to ensure that the data on slots 3+4 doesn't conflict
with the DAC output (except when the DACs output at the same sample
rate), change the controller driver(s) to adjust the hardware limits
appropriately, and then fix any bugs that I've overlooked.
> This might be a way to support 44.1kHz SPDIF playback (albeit
> upsampled to 88.2kHz).
Is there any codec that supports 88.2 but not 44.1?
Regards,
Clemens
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2005-08-23 6:25 DRS support for AC97 Philip Prindeville
2005-08-23 7:43 ` Clemens Ladisch
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