Re: Album art from Mp3, AAC via QTKit question
Re: Album art from Mp3, AAC via QTKit question
- Subject: Re: Album art from Mp3, AAC via QTKit question
- From: Kay Roepke <email@hidden>
- Date: Sun, 29 Jan 2006 16:12:28 +0100
On 29. Jan 2006, at 8:03 Uhr, Jerry Brace wrote:
// get value
char valueBuf[valueSize];
QTMetaDataGetItemValue (movieMetaData,
item,
&valueBuf,
valueSize,
NULL);
Note that this code will produce a warning, because of passing a
char* where a QTPropertyValuePtr is expected.
I'd do:
QTPropertyValuePtr valueBuf;
valueBuf = malloc(valueSize);
QTMetaDataGetItemValue (movieMetaData,
item,
valueBuf,
valueSize,
NULL);
Right now it does nothing. Does anyone have any experience doing
this kind of thing?
In my work with it, I often encountered crashes (even with the Apple
sample code) when trying to open AAC files which
came from the iTMS. I cannot really say where that came from.
Also, the choice of the correct storage format and key format can be
tricky. You should also take into consideration
the encoding of the data. This info is all pretty evenly distributed
over the entire QT API docs, unfortunately.
Have you tried to iterate over each and every metadataitem to see if
the file really contains the information you want
to get at?
You should also take a look at the relevant Apple sample code. It's
over at http://developer.apple.com/samplecode/QTMetaData/QTMetaData.html
HTH,
Kay
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