I am trying to use QuickTime for Windows SDK to write uncompressed
video to a QuickTime movie. I have the video compressor set to "None".
The video frame size is 720x480. By looking at the performance
counter, I notice QuickTime is writing 64k bytes of data in each I/O
operation. And the number of writes/sec is over 300. I am wondering is
there a way to optimize the performance? Maybe a custom data handler?
But I am not sure where to start.
In your DataHWrite64 function you could try to combine several write
request into one write.
You would still have to get QuickTime to use your data handler instead
of the standard one.
A simpler way is to write the movie samples to the disk yourself and
construct the movie from the data file using AddMediaSampleReferences.
If you want a single file it gets a little harder.
Jan E.
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