H.265 muxing problems MKV & MP4

Bug report and feature request
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fatpigtures
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H.265 muxing problems MKV & MP4

Post by fatpigtures » Thu Jan 22, 2015 9:21 am

Hello,

I am on 0.8.33 5685.
When encoding 1080p Videos with x265, the resulting MKVs are unplayable on my android devices.
DivX HEVC MKVs are playing just fine.
If I choose an MP4 container for x265, this plays just fine on android, too- BUT:

The muxing to MP4 fails randomly. The same video file might get an "error 15" in 2 out of 3 tries-
and succeed in the third try.
Switching out mp4box to older versions of 2013 and 2014 did not help.

The only reliable version for this is 0.8.29.5600 - which is terribly slow.

fatpigtures
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Re: H.265 muxing problems MKV & MP4

Post by fatpigtures » Fri Jan 23, 2015 8:47 am

When manually muxing the Raw Streams to mp4 with MP4Box, it will also randomly just not output any file. no error message.
IF it works, they play on android.
When demuxing the MKVs and muxing those streams into MP4, they wont play on android.

really weird stuff there. anyone?

stanley
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Re: H.265 muxing problems MKV & MP4

Post by stanley » Sat Jan 24, 2015 1:46 pm

Have you tried with just released version?
When things work together, things work.

fatpigtures
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Re: H.265 muxing problems MKV & MP4

Post by fatpigtures » Sat Jan 24, 2015 7:03 pm

I have tried with January 12th version - 5685. I see no newer version online.
Currently I encode to raw streams, and mux that into mp4 via batch file.

BUT: I have to run the muxing process multiple times to get every file muxed.
Some files show progress, but no mp4 is made.
Then I process them again, sometimes an mp4 is written, sometimes I have to try a 3rd or 4th time.
Weird!

Something about the HEVC stream? Is there any way to get a more detailed log out of mp4box?

fatpigtures
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Re: H.265 muxing problems MKV & MP4

Post by fatpigtures » Wed Feb 25, 2015 7:32 pm

The newest nightly build of GPAC features a fixed MP4BOX.EXE - after I filed a bug report over there. please include in next release.

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