Hey, As far as i know, in most versions of JACK, DEFAULT_AUDIO_TYPE is float (32 bit). So I've been casting to (float*), which doesnt segfault. That's not to say that it wont on other peoples computers...
Casting to DEF_AUDIO is a better idea.. Ill test it later when I'm at programming. :-) Thanks for the replies. -Harry On Fri, Jul 2, 2010 at 9:16 AM, alberto colombo <v...@albx79.it> wrote: > 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 > > _______________________________________________ > > vala-list mailing list > > vala-list@gnome.org > > http://mail.gnome.org/mailman/listinfo/vala-list > > > _______________________________________________ > vala-list mailing list > vala-list@gnome.org > http://mail.gnome.org/mailman/listinfo/vala-list >
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