At Sat, 9 Aug 2014 12:09:21 +0200, Jurgen Kramer wrote:
Support for DSD sample formats has been added a while ago. This patch makes those sample formats beter usable from userland (e.g. aplay).
include/sound/asound.h | 4 +++- src/pcm/pcm_misc.c | 4 ++++
The new definitions are still missing in include/pcm.h? include/sound/asound.h is a copy from the kernel, and the user-land API is defined rather in include/pcm.h.
thanks,
Takashi
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/include/sound/asound.h b/include/sound/asound.h index c819df4..5194524 100644 --- a/include/sound/asound.h +++ b/include/sound/asound.h @@ -214,7 +214,9 @@ typedef int __bitwise snd_pcm_format_t; #define SNDRV_PCM_FORMAT_G723_24_1B ((__force snd_pcm_format_t) 45) /* 1 sample in 1 byte */ #define SNDRV_PCM_FORMAT_G723_40 ((__force snd_pcm_format_t) 46) /* 8 Samples in 5 bytes */ #define SNDRV_PCM_FORMAT_G723_40_1B ((__force snd_pcm_format_t) 47) /* 1 sample in 1 byte */ -#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_G723_40_1B +#define SNDRV_PCM_FORMAT_DSD_U8 ((__force snd_pcm_format_t) 48) /* 8 1-bit samples in 1 byte */ +#define SNDRV_PCM_FORMAT_DSD_U16_LE ((__force snd_pcm_format_t) 49) /* 16 1-bit samples in 2 bytes */ +#define SNDRV_PCM_FORMAT_LAST SNDRV_PCM_FORMAT_DSD_U16_LE
#ifdef SNDRV_LITTLE_ENDIAN #define SNDRV_PCM_FORMAT_S16 SNDRV_PCM_FORMAT_S16_LE diff --git a/src/pcm/pcm_misc.c b/src/pcm/pcm_misc.c index d52160c..44bb89c 100644 --- a/src/pcm/pcm_misc.c +++ b/src/pcm/pcm_misc.c @@ -195,11 +195,13 @@ int snd_pcm_format_width(snd_pcm_format_t format) switch (format) { case SNDRV_PCM_FORMAT_S8: case SNDRV_PCM_FORMAT_U8:
- case SNDRV_PCM_FORMAT_DSD_U8: return 8; case SNDRV_PCM_FORMAT_S16_LE: case SNDRV_PCM_FORMAT_S16_BE: case SNDRV_PCM_FORMAT_U16_LE: case SNDRV_PCM_FORMAT_U16_BE:
- case SNDRV_PCM_FORMAT_DSD_U16_LE: return 16; case SNDRV_PCM_FORMAT_S18_3LE: case SNDRV_PCM_FORMAT_S18_3BE:
@@ -253,11 +255,13 @@ int snd_pcm_format_physical_width(snd_pcm_format_t format) switch (format) { case SNDRV_PCM_FORMAT_S8: case SNDRV_PCM_FORMAT_U8:
- case SNDRV_PCM_FORMAT_DSD_U8: return 8; case SNDRV_PCM_FORMAT_S16_LE: case SNDRV_PCM_FORMAT_S16_BE: case SNDRV_PCM_FORMAT_U16_LE: case SNDRV_PCM_FORMAT_U16_BE:
- case SNDRV_PCM_FORMAT_DSD_U16_LE: return 16; case SNDRV_PCM_FORMAT_S18_3LE: case SNDRV_PCM_FORMAT_S18_3BE:
-- 1.9.3
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