[alsa-devel] [PATCH alsa-lib 1/1] doc: Fix typo in PCM formats
Of course, 24bit samples are not stored in three bits, but bytes.
Signed-off-by: Adrian Knoth adi@drcomp.erfurt.thur.de
diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c index ea1afdc..18b43b3 100644 --- a/src/pcm/pcm.c +++ b/src/pcm/pcm.c @@ -209,13 +209,13 @@ The device is physicaly disconnected. It does not accept any I/O calls in this s \section pcm_formats PCM formats
The full list of formats present the #snd_pcm_format_t type. -The 24-bit linear samples uses 32-bit physical space, but the sample is -stored in low three bits. Some hardware does not support processing of full +The 24-bit linear samples use 32-bit physical space, but the sample is +stored in the lower three bytes. Some hardware does not support processing of full range, thus you may get the significant bits for linear samples via #snd_pcm_hw_params_get_sbits() function. The example: ICE1712 chips support 32-bit sample processing, but low byte is ignored (playback) or zero (capture). The function snd_pcm_hw_params_get_sbits() -returns 24 in the case. +returns 24 in this case.
\section alsa_transfers ALSA transfers
At Tue, 27 Mar 2012 17:54:47 +0200, Adrian Knoth wrote:
Of course, 24bit samples are not stored in three bits, but bytes.
Signed-off-by: Adrian Knoth adi@drcomp.erfurt.thur.de
Applied now. Thanks.
Takashi
diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c index ea1afdc..18b43b3 100644 --- a/src/pcm/pcm.c +++ b/src/pcm/pcm.c @@ -209,13 +209,13 @@ The device is physicaly disconnected. It does not accept any I/O calls in this s \section pcm_formats PCM formats
The full list of formats present the #snd_pcm_format_t type. -The 24-bit linear samples uses 32-bit physical space, but the sample is -stored in low three bits. Some hardware does not support processing of full +The 24-bit linear samples use 32-bit physical space, but the sample is +stored in the lower three bytes. Some hardware does not support processing of full range, thus you may get the significant bits for linear samples via #snd_pcm_hw_params_get_sbits() function. The example: ICE1712 chips support 32-bit sample processing, but low byte is ignored (playback) or zero (capture). The function snd_pcm_hw_params_get_sbits() -returns 24 in the case. +returns 24 in this case.
\section alsa_transfers ALSA transfers
-- 1.7.9.1
participants (2)
-
Adrian Knoth -
Takashi Iwai