Optimize the SynchData::decode
doep at onnerby.se
Tue Mar 25 01:17:56 CET 2008
Never mind :)
I modified the ByteVector::replace and the time went from 15-30 seconds
down to 0.x seconds (didn't do any real benchmark). I haven't tested
this fully yet, but it seem to work as it should. Is this something that
the taglib team is interested in?
Daniel Önnerby wrote:
> Hi again!
> I have some mp3s using id3v2 tags that seems to be unsyncronized (I do
> not really know what that means). They have a thumbnail embedded (APIC)
> and when I open the file with
> TagLib::MPEG::File mp3file("myfile.mp3");
> It will take a VERY long time (between 15-30 seconds) to read the tags.
> I tracked down what took so long and found that it was the
> SynchData::decode method when it decodes the APIC frame that in my
> example is about 300Kb.
> I think this kind of "slow" files are very uncommon, but since we are
> writing a application that's suppose to handle your mp3 library it would
> be nice if this could be optimized.
> Is this something that someone else has come across or has anyone
> already optimized this?
> Best regards
> taglib-devel mailing list
> taglib-devel at kde.org
More information about the taglib-devel