I've used get_buffer only for MIDI, so far, so I'm not sure how it'd
work on raw audio ports.
With MIDI ports, you use it like this:
void *port_buffer = midi_in.get_buffer(nframes);
NFrames count = Midi.get_event_count(port_buffer);
for (NFrames i=0; i<count; ++i)
{
Midi.Event e;
Midi.Event.get(out e, port_buffer, i);
...
I guess, for audio, you'd have to cast void* get_buffer to
DefaultAudioSample, something like this (untested!):
DefaultAudioSample* buffer =
(DefaultAudioSample*)master_l.get_buffer(nframes);
Let me know if it works.
alb
On Wed, 2010-06-30 at 14:26 +0100, Harry Van Haaren wrote:
> Hey All,
>
> I've got a function in the JACK.vapi binding, that returns a buffer. Now it
> doesnt "physically"
> return the buffer, but returns a void* to the buffer.
>
> I checked the Vala tutorial for any references to void*, and didnt find
> anything...
>
> This is the function (to be called on a Port object):
> public void* get_buffer(NFrames nframes); // nframes is a uint32..
> not that it matters
>
> And this is what I tried (master_l is of Port type):
> var buffer = master_l.get_buffer(nframes);
>
> And what I want to do with this buffer is the following:
> for(int i = 0; i < (uint32) nframes; i++)
> {
> buffer[i] = array[i]; // have an array of samples, need to write
> them to this void* buffer.
> }
>
> Any suggestions..? Thanks for reading, -Harry
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