Fragmented .mp4

[Kolich]

Do anyone can share me .mp4 file with fragmented structure (mvex, moof, traf atoms), based on ISO IEC 14496-12 2004.
Which programm can produce such files?
:thanks:

[bond]

hey an advanced mp4 question :)

mp4box can produce fragmented mp4 files

[Kolich]

hm, do mp4box has any properties to setup fragment sizes? in MP4Box features I did not find any mentions about fragments.

[bond]

hm, do mp4box has any properties to setup fragment sizes? in MP4Box features I did not find any mentions about fragments.MP4Box -h general should have info about it

[Kolich]

MP4Box -h general should have info about it
:thanks:
now can't find any splitter to play file correctly.

[Hellworm]

Did you try osmo4? It's also part of gpac.

[bond]

:thanks:
now can't find any splitter to play file correctly.osmo4 or 3ivx maybe too

[Kolich]

It's not very good, that MP4Box places "mdat" atom before header...

[Drachir]

Maybe you should contact the developers of GPAC ( http://gpac.sf.net ).

[Kolich]

in ISO specs do not mentioned positions of atoms, but some other additional specs say, that mdat should goes after it's header.

[Drachir]

Which MP4Box version do you use? I created an short fragmented sample with MP4Box 0.4.1 DEV (CVS 2005.12.04). I wasn't able to play the file with Osmo4 or any other Player.

[Kolich]

I was not able to play the file with Osmo4 too. The same result for other players.

[bond]

in ISO specs do not mentioned positions of atoms, but some other additional specs say, that mdat should goes after it's header.if the iso specs say its allowed, than its allowed ;)

[Kolich]

if the iso specs say its allowed, than its allowed ;)
MP4Box produces files very bad convenient for streaming... but it's allowed, of couse :)

[bond]

MP4Box produces files very bad convenient for streaming... but it's allowed, of couse :)well you might want to tell the devs about that

[Kolich]

Is any other tool to produce fragmented MP4? MP4Box does not write "sample duration" to file.

[bond]

well you might want to tell the devs about that :stupid:

[Kolich]

Sorry, I found "sample duration" information. When all samples are the same size, this information stores in default_sample_duration field in "trex" atom.

[bond]

i have just realised that sony's "image converter 2 plus" includes a Mp4FragmentMuxer.ax filter which seems to support creating fragmented mp4 files!? this of course also poses the questions whether the sony psp or other sony mobile devices support fragmented mp4?

either way you might want to check it out:
http://support.sony-europe.com/memstick/downloads/downloads_ms.asp?l=de&f=IC2

[Kolich]

i dont have "image converter 2 plus" and it is not possible to download it, only update, which doesnot installs without "image converter 2 plus" CD.
can you upload Mp4FragmentMuxer.ax filter here, please?