Re: Sending out through virtual MIDI sources on iOS
Re: Sending out through virtual MIDI sources on iOS
- Subject: Re: Sending out through virtual MIDI sources on iOS
- From: Charlie Roberts <email@hidden>
- Date: Thu, 10 Nov 2011 10:00:15 -0800
I think you might be skipping the first packet...
if (i != 0) packet = MIDIPacketNext(packet);
- Charlie
On Thu, Nov 10, 2011 at 2:05 AM, Michael Tyson
<email@hidden> wrote:
Hey list,
I'm *this* close to having a fully functioning clock send/receive from my iOS app, but I'm having problems figuring out how to put the clock on my app's virtual source endpoint, so other apps can listen to it.
I've created the virtual source with:
OSStatus s = MIDISourceCreate(client, (CFStringRef)sourceNameString, &virtualSourceEndpoint);
...Then, when I'm ready to send messages:
// Assign proper timestamps to packetList
MIDIPacket *packet = &packetList->packet[0];
for ( int i = 0; i<packetList->numPackets; i++ ) {
packet = MIDIPacketNext(packet);
if ( packet->timeStamp == 0 ) {
packet->timeStamp = (MIDITimeStamp)mach_absolute_time();
}
}
// Send it
OSStatus s = MIDIReceived(virtualSourceEndpoint, packetList);
NSLogError(s, @"Sending MIDI");
This all seems to happen without a hitch (no errors reported), but the other app I'm testing it with, MoDrum, doesn't see anything on the other end, and neither does the Midi Monitor app.
Is there a step I've missed in the initialisation, perhaps?
Many thanks,
Michael
--
Michael Tyson | atastypixel.com
A Tasty Pixel: Artisan apps
aim: mikerusselltyson
twitter: MichaelTyson
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