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Old 18th July 2008, 01:45   #11  |  Link
Revgen
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Quote:
Originally Posted by neuron2 View Post
Does it support accurate random access?
I don't know for sure, but the best seek method (seekmode=0) is alot more accurate than DirectShow.

Unfortunately, the method that is done is much slower than DGAVCDec. It's also full of other codecs and stuff that have nothing to do with H264.

I would prefer MP4 support from DGAVCDec over FFMPEGsource.

EDIT

Here are the seekmodes as described in the FFMPEGSource manual
Code:
seekmode: Force how seeking is handled, has no effect on matroska files which always use the equivalent of seekmode=1
-1: linear access without rewind, will throw an error if each successive requested frame number isn't bigger than the last one, only intended for opening images but might work on well with some obscure video format
0: linear access, the definition of slow but should make some formats "usable"
1: safe normal, bases seeking decisions on the reported keyframe positions
2: unsafe normal, same as 1 but no error will be thrown if the exact destination has to be guessed
3: aggressive, seek in the forward direction even if no closer keyframe is known to exist, only useful for testing and containers where avformat doesn't report keyframes properly
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Last edited by Revgen; 18th July 2008 at 02:01.
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