Video Seek Freeze about lavfilters HOT 9 CLOSED

Please provide a sample video that allows me to reproduce the problem, otherwise there isn't much I can do.

from lavfilters.

Ok, I'll try to create a sample of the video and see if the problem remains on the sample.

from lavfilters.

Here it is the sample: https://mega.nz/#!2EUA2bTB!fvTE_lEhBF91MmjY4ttWKnZdKOxpeTFmlw3L-rrVtCU

Go to 50 Seconds, you'll see the image to Freeze. And the SEEK of that sample is very poor, I can't choose to play in a specific second. VLC for example can play the file well, but I dont want to use that...
Other example, if I put haali splitter as the prefered one, the video seek is solved too. Even using LAV video and audio. Just changing the LAV Splitter to Haali Spliiter.

Best Regards

from lavfilters.

From what I can tell, the mp4 is kinda "broken". Its sample index marks a keyframe at that point, but its not actually a keyframe - the next keyframe is only 6 seconds later, hence the delay.

from lavfilters.

More accurately, its not marked as a keyframe, but as a random access point using a 'sbgp' atom. Its certainly possible the other demuxers you tested don't respect this atom at all.

from lavfilters.

So, is this a problem of the x264 version?
Maybe its better to lav not respect too that atom?

from lavfilters.

Well whatever wrote this mp4 file set a random access point there, but I don't see any indication of one. No key frames, no recovery point SEI.

And no, these random access point entries can be very useful, not respecting them because of a few broken files (or one broken muxer, at that), is not a solution.

from lavfilters.

Closing this issue as the file in question is "bad".

from lavfilters.

Hi there, just to say that I found the culprit of the freeze frame. I was using megui last version, I tried the dev version of megui and it solved. I've check that the problem was on the mp4box that was "broken".
About the poor seek, I did this: MPC-HC "Options">"Tweaks", un-tick "Fast seek (on keyframe)".
Thanks again!

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