[CLAM] Re: Question on the Midi file reader

Vincent SHAO vince.shao at gmail.com
Mon Mar 9 09:24:06 PDT 2009

Sorry, I've known where the bug is. When i write xml file, the newly
generated file overwrite the midi file, thus when i run it the second, it
pops back that error.

Thanks. ;-)



On Tue, Mar 10, 2009 at 12:11 AM, Vincent SHAO <vince.shao at gmail.com> wrote:

> Hi, all:
> Sorry to bother again. I encountered a problem that i have no clue and need
> your help.
> I am intending to extract the melody information from a midi file, I wrote
> the following codes:
>      *MIDIFileIOConfig midiFConfig;
>     midiFConfig.SetFileName(filename);
>     MIDIFileReader midiFReader(midiFConfig);
>     MIDISong midiSong;
>     midiFReader.Do(midiSong);
>     Array<MIDITrack> tracks = midiSong.GetTracks();
>     int tracksNumber = midiSong.GetNumberOfTracks();
>     cout<<"Track number is : "<<tracksNumber<<endl;
>     for(int i =0; i< tracksNumber; i++){
>         MIDIMelody midiMelody = tracks[i].GetTrackMelody();
>         XMLStorage x;
>         x.UseIndentation(true);
>         x.Dump(midiMelody,"Analyzed_MIDIMelody",filename+(char)i);
>     }*
> The code is working all right for the first time and can generate the
> melody file as i wanted, yet it won't work again, i mean i can't run this
> code again. When i run this it pops back the error:
> *Expected a header chunk.
> terminate called after throwing an instance of 'MIDI::Reader::Error'
> Aborted*
> Did i miss something, like i have to close the midi file reader? Can't
> locate the bug and need your help.
> A huge thank to all of you.
> Cheers
> Vincent
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