Firstly, I am a C novice (but not a programming novice). I've been looking at using Jack. I've read the API reference and simple_client.c and connection.c and (think!) I understand them. I just have a couple of questions which I hoped somebody could help me with.
1. Is the 'port_type' string just an arbitrary string if I am defining my own audio type? (instead of using DEFAULT_AUDIO_TYPE) 2. How do I define my own audio types? For example, I wish to import 16bit stereo PCM data from my CD player in 1024 sample chunks. In this case, do i need to set up 2 ports (one for each audio channel) with a buffer of 2048 bytes each? If so, how do I tell the jack server to feed me data encoded to 16 bits? and how do I define a port as belonging to a particular audio channel? If not, how do I define and use a stereo source? 3. When is 'process()' called (as set by 'int jack_set_process_callback(...). Is it when the buffer is full? If so, is it controlled by the jack server? Presumably, the ideal situation is that all processing is done and the program is waiting (in a loop?) before the 'process()' function is called, thus allowing the program to process the next chunk of data? Any help at all would be welcomed. I apologise if I have missed something obvious, in which case a quiet pointer to the required info would be much appreciated. Many Thanks Henry Gomersall
