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thommyfilm
17th March 2008, 11:39
hello

does somebody of you hae some experience with mp4box and quicktime player?

we are working to develop a website that does the following:

1. user klicks on a link to download a mp4 video.
2. the system queries a mysql database to get some information out of it.
3. a short movie which contains a title with this information will be encoded.
4. this short movie and a longer already existing one will be combined.
5. the download starts.

we did some experiments with mp4 box. the movie played in vlc but not in quicktime. the movie should be a fully compliant mpeg4 file that plays in an standard non modified quicktime player. the whole system should run on a unix webserver. preferably on running os x server. any ideas?

t.

talen9
17th March 2008, 12:28
Take a look at this thread (http://forum.doom9.org/showthread.php?t=135701), especially the first 7 posts ... it's more likely then the problem is actually in Quicktime, rather then in the muxing.

The original mp4 video plays correctly by itself, in QuickTime?

SeeMoreDigital
17th March 2008, 15:05
Look here too: -

http://forum.doom9.org/showthread.php?t=130765

thommyfilm
12th June 2008, 08:46
ahem that didn't really help :-(

an other idea: suppose the long movie is already prepared: is there a tool that can change some frames or GOPs inside an existing mpeg4/h264 file? the size and duration and everything would stay the same. just the data of a few gops is replaced. i guess like this the header would not have to be rewritten?

any thoughts?

setarip_old
12th June 2008, 17:56
Hi!any ideas?For QuickTime compliance, try CREATING the .MP4 in VLC...

refulgentis
13th June 2008, 22:07
I've spent almost 2 months making Quicktime work with the basic MP4 tools. The simple way that it works is to generate the MP4 using MP4Box, then pass the MP4 through ffmpeg, using acodec copy and vcodec copy so you don't actually have to reencode.

SeeMoreDigital
14th June 2008, 11:36
Has anybody tried Crypto's new application?

http://forum.doom9.org/showthread.php?t=138445

refulgentis
20th June 2008, 18:41
Has anybody tried Crypto's new application?

http://forum.doom9.org/showthread.php?t=138445useless for linux, mac, & co users :/