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dmix: add S24_3LE support

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Add to the dmix plugin support for the S24_3LE sample format which is
used by 24-bit USB devices.

The optimized assembler version uses only 23 bits for sample data so
that the lowest bit can be used for synchronization because there is no
24-bit cmpxchg instruction.
This commit is contained in:
Clemens Ladisch 2005-12-19 07:39:03 +00:00
parent 46f81f994b
commit 45f63a8735
8 changed files with 404 additions and 7 deletions
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src/pcm/pcm_direct.c
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@ -800,6 +800,7 @@ int snd_pcm_direct_initialize_slave(snd_pcm_direct_t *dmix, snd_pcm_t *spcm, str
case SND_PCM_FORMAT_S32_BE:
case SND_PCM_FORMAT_S16_LE:
case SND_PCM_FORMAT_S16_BE:
case SND_PCM_FORMAT_S24_3LE:
break;
default:
SNDERR("invalid format");