Re: MusicPlayerStart returns -10854
Re: MusicPlayerStart returns -10854
- Subject: Re: MusicPlayerStart returns -10854
- From: Bill Stewart <email@hidden>
- Date: Tue, 28 Jan 2003 21:45:43 -0800
You have to give a player a sequence to play...
MusicPlayerSetSequence
The Error Code is:
kAudioToolboxErr_NoSequence
It is defined in MusicPlayer.h
bill
On Tuesday, January 28, 2003, at 04:19 PM, Michael Norris wrote:
>
Hi there,
>
>
Just getting into CoreAudio for the first time. I'm testing out the
>
MusicPlayer APIs (and lamenting over the poor state of documentation!)
>
I'm also attempting to put some Cocoa wrappers around them, just for
>
fun.
>
>
Anyway, at the moment, I'm not getting much joy with attempting to
>
play a MusicSequence. Here's the order of events (with arguments left
>
out):
>
>
NewMusicPlayer()
>
NewMusicSequence()
>
MusicSequenceNewTrack()
>
MusicTrackNewMIDINoteEvent() - add a single note with following
>
params: note:64 channel:0 velocity:128 duration:2.0 at time 0.0
>
MusicPlayerPreroll()
>
MusicPlayerStart()
>
>
All this works and no errors are returned *except* for the very last
>
call, MusicPlayerStart(), which returns an error of -10854. I have no
>
idea what this error means, as I can't seem to locate a header file
>
that explains these error codes. (Can anyone point me in this
>
direction?)
>
>
I wonder if this is something to do with the fact that it's not yet
>
hooked up to an AUGraph. I had read in the coreaudio-api archives that
>
by default MusicPlayer uses the inbuilt DLS synth, which is fine for
>
testing purposes. Is that correct, or do I still need to hook it up to
>
an AUGraph or MIDIEndpoint?
>
>
Cheers
>
-mike
>
_______________________________________________
>
coreaudio-api mailing list | email@hidden
>
Help/Unsubscribe/Archives:
>
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
>
Do not post admin requests to the list. They will be ignored.
>
>
--
mailto:email@hidden
tel: +1 408 974 4056
________________________________________________________________________
__
"Much human ingenuity has gone into finding the ultimate Before.
The current state of knowledge can be summarized thus:
In the beginning, there was nothing, which exploded" - Terry Pratchett
________________________________________________________________________
__
_______________________________________________
coreaudio-api mailing list | email@hidden
Help/Unsubscribe/Archives:
http://www.lists.apple.com/mailman/listinfo/coreaudio-api
Do not post admin requests to the list. They will be ignored.