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Flush all pending data in a PCM channel's queue and stop the channel
#include <sys/asoundlib.h>
int snd_pcm_channel_flush( snd_pcm_t *handle,
int channel );
- handle
- The handle for the PCM device, which you must have opened by calling
snd_pcm_open()
or
snd_pcm_open_preferred().
- channel
- The channel; SND_PCM_CHANNEL_CAPTURE or
SND_PCM_CHANNEL_PLAYBACK.
libasound.so
The snd_pcm_plugin_flush() function
flushes all unprocessed data in the driver queue by calling
snd_pcm_capture_flush()
or
snd_pcm_playback_flush(),
depending on the value of channel.
Zero on success, or a negative error code.
- -EBADFD
- The pcm device state isn't ready.
- -EINTR
- The driver isn't processing the data (Internal Error).
- -EINVAL
- Invalid handle.
- -EIO
- An invalid channel was specified, or the data wasn't all flushed.
QNX Neutrino
Safety: | |
Cancellation point |
No |
Interrupt handler |
No |
Signal handler |
Yes |
Thread |
Yes |
snd_pcm_capture_flush(),
snd_pcm_playback_drain(),
snd_pcm_playback_flush(),
snd_pcm_plugin_flush()
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