QuickTime API to get H.264 codec level

Hai All,
Currently I'm working on an application using QuickTime. I have designed the application in such a way as to take level 2.2 for H.264 compression specifying the frame size, frame rate and maximum data rate corresponding to H.264 level 2.2. But what I need to confirm before ICMCompressionSessionCreate () is whether the compression session is using H.264 level 2.2 itself or any other levels.
So my questions are,
1. Is there any specific API to get the level of codec being used?
2. On what basis is the level of codec used is being selected?
3. Whether the level of codec used will affect the performance or quality of the application?
Expecting a reply at the earliest of your convinience,
Thanks and regards,
Abin

handles are the overlap between the outgoing clip and the incoming. if you want a dissolve to start 15 frames before the end of the outgoing clip then the first frame of the incoming clip needs to be at that frame, if you want it to end 15 frames into the incoming clip then the last frame of the outgoing clip needs to be there.
mark an in 15 frames before the join and an out 15 frames after the join, ripple delete, and re-apply the transition.

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mfrasyid1 wrote:
I wonder why this happens? The "unable to handle.." really does come out twice. Is it because the inputfile.mov which I wanna convert comes from the merging oftwo wave files? If so, then how can I convert this into single wave file? Thank you.That is a weird message, but yes, the .mov file probably stored the 2 original WAV files as 2 tracks of data, rather than 1 track. So whenever it's trying to transcode to a WAV file, it fails to transcode both tracks.
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This works. I have tried it. http://www.kaisakura.com/fortytwovx.php
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You simply can't address it (fully).
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What I "THINK" Jim is trying to say is that when you use a broadcast grade monitor to check color or a YC-waveform/VectorScope or any scopes for that matter you can make sure that everything is accurate (meaning within correct range color wise). Which means that when people expose your video to other factors such as ... Quicktime which messes up the Gamma of the video often times, and VLC which in some cases with people who don't set their PC's/Mac's video cards up correctly or someone using WMP. Or simply someone watching it on a TV set which is not anywhere close to being calibrated it will still come out looking good anyways in MOST scenarios. IF you check everything on scopes/professional broadcast monitors.
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(you can't control everything variable wise)
http://wiki.videolan.org/VSG:Video:Color_nVidia
http://community.avid.com/forums/p/101346/583706.aspx
Obviously though I can't speak for Jim I'm just assuming that's what he meant when he spoke about why you need a pro monitor etc... If I'm incorrect I apologize Jim

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When I select the MPEG-4(MP4)file format and the H.264 codec at the same time to export my quicktime movie to another format,the picture does not turn out clear.

I export from the best source available. I use the original source exported directly to .mov or .mp4 using the H.264 video codec.
If the file has already been processed to something (.mov, .mp4 or any MPEG flavor) I first export the file back to DV Stream and use this new file for the H.264 export.
It will not be as good as using the original source but, it will be much better than if you compressed (using H.264) an already compressed file.
H.264 isn't a magic bullet. It can't repair a poorly compressed file and it will not dramatically improve an already compressed file.
I think the Windows Movie Maker software allows you to export to some sort of DV (Digital Video) format. This will not add any new data to an already compressed file but it will not further compress the file either.
Don't try to increase the dimensions of the file. If it was 320X240 when first made (or compressed) leave it at that size when you apply the H.264 codec.
I hope this helps answer your questions.

QuickTime API to get H.264 codec level

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