linux/include/uapi/sound
Daniel Mack ef7a4f979b ALSA: add DSD formats
This patch adds two formats for Direct Stream Digital (DSD), a
pulse-density encoding format which is described here:
https://en.wikipedia.org/wiki/Direct_Stream_Digital

DSD operates on 2.8, 5.6 or 11.2MHz sample rates and as a 1-bit
stream.

The two new types added by this patch describe streams that are capable
of handling DSD samples in DOP format as 8-bit or in 16-bit (or at a x8
or x16 data rate, respectively).

DSD itself specifies samples in *bit*, while DOP and ALSA handle them
as *bytes*. Hence, a factor of 8 or 16 has to be applied for the sample
rare configuration, according to the following table:

                                                  configured hardware
        176.4KHz   352.8kHz   705.6KHz     <----       sample rate

8-bit                2.8MHz     5.6MHz
16-bit    2.8Mhz     5.6MHz    11.2MHz

         `-----------------------------'
             actual DSD sample rates

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2013-04-18 10:02:33 +02:00
..
Kbuild UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
asequencer.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
asound.h ALSA: add DSD formats 2013-04-18 10:02:33 +02:00
asound_fm.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
compress_offload.h ALSA: compress: add support for gapless playback 2013-02-14 12:30:22 +01:00
compress_params.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
emu10k1.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
hdsp.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
hdspm.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
sb16_csp.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00
sfnt_info.h UAPI: (Scripted) Disintegrate include/sound 2012-10-09 09:49:13 +01:00