[openbeosmediakit] Re: About BSoundPlayer
- From: "Marcus Overhagen" <ml@xxxxxxxxxxxx>
- To: openbeosmediakit@xxxxxxxxxxxxx
- Date: Sat, 27 Sep 2003 00:35:42 GMT
> Hi,
>
> >> How must I fill the buffer for doing what I want?
> > The data above looks ok.
> > Can you post a small sample program source code that shows the problem?
> >
>
> source are here http://jerome.leveque.free.fr/SoftSynth.zip
>
> the soft create an SynthConsumer derived from BMidiLocalConsumer (Midi2)
> connect to it with PatchBay a producer and play.
>
> The function that fill buffer are SynthConsumer::AddNoteToBuffer
>
I don't know what else is wrong, but you shouldn't use B_MEDIA_BIG_ENDIAN
as format. B_MEDIA_HOST_ENDIAN is better in your case.
Also try to memset the buffer to 0 before adding data into it,
I don't completely understand what you are doing, but i only
get silence here when running it, with R5 and open media kit.
I was hoping for some simple example software that demonstrates
the problem, not for the full thing.
You can try to use this code to demonstrate the problem:
int16 *buf = (int16 *)buffer;
int count = size / 4;
for (int i = 0; i < count; i++) {
*buf++ = (i & 0xf) << 12;
*buf++ = 0;
}
This should generate some noise on one channel, and silence on the other.
by swapping the *buf++ lines, you should be able to change the channel.
It that works, BSoundPlayer is working correct
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