The sample cache provides a simple way of overcoming high network latencies and reducing bandwidth. Instead of streaming a sound precisely when it should be played, it is stored on the server and only the command to start playing it needs to be sent.
To create a sample, the normal stream API is used (see Audio Streams
). The function pa_stream_connect_upload()
will make sure the stream is stored as a sample on the server.
To complete the upload, pa_stream_finish_upload() is called and the sample will receive the same name as the stream. If the upload should be aborted, simply call pa_stream_disconnect().
To play back a sample, simply call pa_context_play_sample()
o = pa_context_play_sample(my_context,
When a sample is no longer needed, it should be removed on the server to save resources. The sample is deleted using pa_context_remove_sample()