Discard all pending data in a PCM capture channel's queue and stop the channel
#include <sys/asoundlib.h> int snd_pcm_capture_flush( snd_pcm_t *handle);
- The handle for the PCM device, which you must have opened by calling snd_pcm_open() or snd_pcm_open_preferred() .
Use the -l asound option to qcc to link against this library.
The snd_pcm_capture_flush() function throws away all unprocessed data in the driver queue.
If the operation is successful (zero is returned), the channel's state is changed to SND_PCM_STATUS_READY, and the channel is stopped.
Zero on success, or a negative error code.
- The pcm device state isn't ready.
- The driver isn't processing the data (Internal Error).
- Invalid handle.
- An invalid channel was specified, or the data wasn't all flushed.