6 Aug
2007
6 Aug
'07
9:25 p.m.
On Sun, 2007-08-05 at 17:12 +0700, Patrick Shirkey wrote:
Dirk Jagdmann wrote:
Read from the disk to a ringbuffer (Jack includes one) in some thread
other than the Jack thread, then in the process callback (Jack thread)
read from that ringbuffer and write it to the port buffers.
Cheers,
-DR-
Hello Patrick,
Hi,
Thanks for your suggestion. However I want to get multiple i/o's working
natively.
I'm fairly certain the code doesn't need restructuring. It's more a case
of how to connect the internal data stream which is read from disk to
jack outputs or jack inputs to the internal stream. I'm trying to jackify xwax. Xwax is a linux
based emulator for Rane
serato and Final scratch.
I have successfully adapted the code from jackEQ to allow xwax to
register and connect several JACK i/o's.
However the original system uses file descriptors for handling the
data (oss/alsa) internally and this is not instantly compatible with
the JACK callback system. At least it's not obvious to me how to link the
I don't know xwax, but since it currently has oss and alsa output I
guess it is using a "blocking IO" model instead of the "callback"
model
of jack. Restructuring the logic from blocking to callbacks can be
complicated. I you want to have a first result have a look at
http://bio2jack.sourceforge.net/ which should fill your gap.