Set a PCM channel's configurable parameters
#include <sys/asoundlib.h> int snd_pcm_channel_params( snd_pcm_t *handle, snd_pcm_channel_params_t *params );
libasound.so
The snd_pcm_channel_params() function sets up the transfer parameters according to the params structure.
You can call the function in SND_PCM_STATUS_NOTREADY (initial) and SND_PCM_STATUS_READY states; otherwise, snd_pcm_channel_params() returns -EBADFD.
If the parameters are valid (i.e. snd_pcm_channel_params() returns zero), the driver state is changed to SND_PCM_STATUS_READY.
Zero on success, or a negative value on error.
QNX Neutrino
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
snd_pcm_channel_params_t, snd_pcm_channel_setup(), snd_pcm_open(), snd_pcm_open_preferred(), snd_pcm_plugin_params()