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);
libasound.so
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.
This function isn't plugin-aware. It functions exactly the same way as snd_pcm_channel_flush(.., SND_PCM_CHANNEL_CAPTURE). Make sure that you don't mix and match plugin- and nonplugin-aware functions in your application, or you may get undefined behavior and misleading results. |
Zero on success, or a negative error code.
QNX Neutrino
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
snd_pcm_channel_flush(), snd_pcm_playback_drain(), snd_pcm_playback_flush(), snd_pcm_plugin_flush()