[alsa-devel] KNOT / CONTINUOUS (was: [PATCH] ASoC: kirkwood: Fix invalid SPDIF format)
Russell King - ARM Linux
linux at arm.linux.org.uk
Tue Nov 26 20:32:47 CET 2013
On Tue, Nov 26, 2013 at 08:09:16PM +0100, Jean-Francois Moine wrote:
> Otherwise, removing SNDRV_PCM_RATE_CONTINUOUS in the codec, I can hear
> the 7850Hz stream which is converted to 22.05 kHz by vlc, but when I
> want a stream at 33.075kHz, vlc converts it to 32kHz.
What is your fascination with doing stuff outside the specifications?
The HDMI spec is quite clear:
"An HDMI Source is permitted to transmit L-PCM audio data at sample rates
of 32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz or 192kHz."
It goes on to say:
"An HDMI Sink may accept L-PCM audio at sample rates of 32kHz, 44.1kHz,
48kHz, 88.2kHz, 96kHz, 176.4kHz or 192kHz, and should indicate these
capabilities in the E-EDID data structure."
That doesn't say that 8kHz, 22.05kHz etc are valid sample rates for
HDMI. It may work for some devices but it's non-standard.
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