* what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES @ 2013-05-20 7:14 Zhang wei 2013-05-20 11:41 ` Clemens Ladisch 0 siblings, 1 reply; 5+ messages in thread From: Zhang wei @ 2013-05-20 7:14 UTC (permalink / raw) To: alsa-devel I know the format likes below when use SNDRV_PCM_IOCTL_WRITEI_FRAMES <http://lxr.free-electrons.com/ident?i=SNDRV_PCM_IOCTL_WRITEN_FRAMES> L+R+L+R+L+R... L:a frame left channel data. R:a frame right channel data. Right? But what is the kind of format when use SNDRV_PCM_IOCTL_WRITEN_FRAMES <http://lxr.free-electrons.com/ident?i=SNDRV_PCM_IOCTL_WRITEN_FRAMES> ? Thank you:-) Br zw ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES 2013-05-20 7:14 what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES Zhang wei @ 2013-05-20 11:41 ` Clemens Ladisch 2013-05-21 6:46 ` Zhang wei 0 siblings, 1 reply; 5+ messages in thread From: Clemens Ladisch @ 2013-05-20 11:41 UTC (permalink / raw) To: Zhang wei; +Cc: alsa-devel Zhang wei wrote: > I know the format likes below when use SNDRV_PCM_IOCTL_WRITEI_FRAMES > L+R+L+R+L+R... > L:a frame left channel data. > R:a frame right channel data. > > But what is the kind of format when use SNDRV_PCM_IOCTL_WRITEN_FRAMES? Multiple buffers, LLL... and RRR... Regards, Clemens ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES 2013-05-20 11:41 ` Clemens Ladisch @ 2013-05-21 6:46 ` Zhang wei 2013-05-21 8:01 ` Clemens Ladisch 0 siblings, 1 reply; 5+ messages in thread From: Zhang wei @ 2013-05-21 6:46 UTC (permalink / raw) To: Clemens Ladisch; +Cc: alsa-devel >Multiple buffers, LLL... and RRR... Thank you very much. But how long the data of LLL...and RRR... ? ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES 2013-05-21 6:46 ` Zhang wei @ 2013-05-21 8:01 ` Clemens Ladisch 2013-05-21 8:23 ` Zhang wei 0 siblings, 1 reply; 5+ messages in thread From: Clemens Ladisch @ 2013-05-21 8:01 UTC (permalink / raw) To: Zhang wei; +Cc: alsa-devel Zhang wei wrote: >> Multiple buffers, LLL... and RRR... > > But how long the data of LLL...and RRR... ? That is the last parameter of snd_pcm_writen(). Regards, Clemens ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES 2013-05-21 8:01 ` Clemens Ladisch @ 2013-05-21 8:23 ` Zhang wei 0 siblings, 0 replies; 5+ messages in thread From: Zhang wei @ 2013-05-21 8:23 UTC (permalink / raw) To: Clemens Ladisch; +Cc: alsa-devel >That is the last parameter of snd_pcm_writen(). Thank you very much :-) I try to test it again . --- BR zw ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-05-21 8:23 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2013-05-20 7:14 what is the difference between SNDRV_PCM_IOCTL_WRITEN_FRAMES and SNDRV_PCM_IOCTL_WRITEI_FRAMES Zhang wei 2013-05-20 11:41 ` Clemens Ladisch 2013-05-21 6:46 ` Zhang wei 2013-05-21 8:01 ` Clemens Ladisch 2013-05-21 8:23 ` Zhang wei
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