Create a handle and open a connection to an audio interface specified by name
#include <sys/asoundlib.h> int snd_pcm_open_name( snd_pcm_t **handle, char *name, int mode );
You can OR this flag with any of the above:
You can change the blocking setup later by calling snd_pcm_nonblock_mode()
libasound.so
The snd_pcm_open_name() function creates a handle and opens a connection to the named PCM audio interface. This function is primarily intended to be used with symbolic device names available with the 4.3 release of audio. It also checks if the protocol is compatible to prevent the use of programs written to an older API with newer drivers.
There are no defaults; your application must specify all the arguments to this function.
Zero on success, or a negative error code.
See the example of snd_pcm_open() in “Opening your PCM device” in the Playing and Capturing Audio Data chapter.
QNX Neutrino
Safety: | |
---|---|
Cancellation point | No |
Interrupt handler | No |
Signal handler | Yes |
Thread | Yes |
Successfully opening a PCM channel doesn't guarantee that there are enough audio resources free to handle your application. Audio resources (e.g. subchannels) are allocated when you configure the channel by calling snd_pcm_channel_params() or snd_pcm_plugin_params().
snd_pcm_close(), snd_pcm_nonblock_mode(), snd_pcm_open(), snd_pcm_open_preferred()