>>
>>
>If you need some help with jack, look at jack.c in LiVES, in particular
>jack_open_device(). I will shortly be adding code to grab audio from jack.
>
>
>Hope this helps,
>Gabriel.
>
>
>
>
Here you go, look at
http://lives.cvs.sourceforge.net/lives/lives/src/jack.cFirst I call jack_audio_read_init() [note that not all of the fields are
actually used, for example, I don't use "mute" or "out_sample_rate" for
my jack reader]. This is done when the app. starts up.
Then to initiate reading, I call:
jack_open_device_read() followed by jack_read_driver_activate(). This
connects my jack inputs to the pcm_capture ports.
Jack will call the audio_read() callback each time a new audio buffer is
ready. So you would presumably cache this somewhere in libvisual.
Finally, I call jack_close_device() to stop capture.
You can also look at audio.c, functions:
rec_audio_to_clip() and rec_audio_stop() to see how the jack functions
are called.
Also in audio.c, you have the function:
sample_move_float_int() which will convert jack's float type samples to
integer values if you need to.
HTH.
Gabriel.
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