GPAC MP4Box Information, Feature Requests & Discussions [No bug reports]

[Kurtnoise]

You should post these requests on SF I think... It's a better place to contact the devs.

[Elias]

Originally posted by Kurtnoise13
You should post these requests on SF I think... It's a better place to contact the devs.

I couldn't register.

[Stacey Melissa]

Originally posted by SeeMoreDigital
Another useful MP4Box feature would be the ability to mux (and de-mux) VOB-subs (as created by Recode2).

Originally posted by Kurtnoise13
I would like to have the possibility to edit some specific atoms for each tracks contained into mp4 file (especially for the language )....Dumpster is good but under mp4box it'll be great.

Originally posted by Elias
Yes, don't forget the component name in the handler reference atom. Very cool feature Too bad it's limited to 23 letters though. Also, in QuickTime Pro, there's an option to change the track name in get movie properties>sound/video track>general>change name. It would be cool to have this feature in MP4Box as well.

Those were gonna be my three suggestions. You guys all beat me to the punch.

[SeeMoreDigital]

Originally posted by Kurtnoise13
You should post these requests on SF I think... It's a better place to contact the devs.

Yep... that's one of the purposes behind this thread

I thought it would be helpful to us all if we discussed our MP4Box issues, hopes and dreams in one place first before making a "unified" request on SourceForge.

Plus it makes it easier for any of the MP4Box developers to look in one place on Doom9... should they ever want too!


Cheers

[JoeBG]

Originally posted by Kurtnoise
I would like to have the possibility to edit some specific atoms for each tracks contained into mp4 file (especially for the language )....Dumpster is good but under mp4box it'll be great.

Originally posted by Elis
Yes, don't forget the component name in the handler reference atom. Very cool feature Too bad it's limited to 23 letters though. Also, in QuickTime Pro, there's an option to change the track name in get movie properties>sound/video track>general>change name. It would be cool to have this feature in MP4Box as well.

I really think, that the next step should be names for the tracks. Has someone made a request?

[Elias]

Somewhat Off Topic. Most of you guys may not be using Wikipedia. I do, and I created this article, so if anyone here feels like helping me maintain it, feel free to give me a helping hand: http://en.wikipedia.org/wiki/MP4Box

[Kurtnoise]

Originally posted by JoeBG
I really think, that the next step should be names for the tracks. Has someone made a request?

I don't think so...but SMD is the man for that.

[Elias]

Why don't we just notify the MP4Box developers about this thread?

[bond]

Originally posted by Elias
Somewhat Off Topic. Most of you guys may not be using Wikipedia. I do, and I created this article, so if anyone here feels like helping me maintain it, feel free to give me a helping hand: http://en.wikipedia.org/wiki/MP4Box

you miss the most important things mp4box does and thats mpeg-4 systems, x3d aso support
i mean muxing strea,s into .mp4 and extracting them again is only kiddie stuff compared to the things mp4box can do with mpeg-4 systems

Originally posted by Elias
Good, I was just checking to be on the safe side. I tried muxing a jpg file into mp4 with the latest MP4Box cvs. It did not play in QuickTime (of course), and the latest haali splitter couldn't parse it either. VLC was the only player able to parse it. Is JPEG in experimental stages too, not muxed ISO compliant, or is it just QT/haali that can't parse jpg in mp4 correctly?

jpg, png muxing is also compliant of course
have a look at my sticky, it lists all streams that are officially standardised for placement in .mp4

Originally posted by Elias
I take it that this is because AVC in avi is very incompatible?

i assume because its a pita to make a conversion from avi
eg look at mkvmerge, it also isnt able to make a avc-in-avi -> native-avc-in-mkv conversion, it only writes it in the "avi/vfw mode"

[stephanV]

Originally posted by bond
i assume because its a pita to make a conversion from avi

Shouldnt be more difficult than muxing raw AVC to MP4

eg look at mkvmerge, it also isnt able to make a avc-in-avi -> native-avc-in-mkv conversion, it only writes it in the "avi/vfw mode"

and guess what? mkvmerge doesnt support muxing raw avc into mkv.

i think doom9 answered that question more than sufficiently.

[Elias]

I don't know why I haven't mention this earlier, but *.mov compliance would be nice. That is, extract tracks from *.mov files. I'm mostly thinking about the new Apple MPEG-4 trailers encoded to the *.mov format instead of *.mp4 and, since *.mp4 is based on *.mov this shouldn't be that hard to implement, or am I wrong? Anyway, would be nice to be able to extract AVC/SP/ASP/AAC from the *.mov format.

[bond]

guys, lets not start wishing stuff just for the sake of having it

you can extract tracks from .mov with lots of other tools, lets not bug jeanlf with such non-issues keeping him only away from the important stuff

[Kurtnoise]

hey,

There are some new commands in the last mp4box. But I'm little bit confused with the syntax. Does anyone have succeed with -add-item arguments ?

[JoeBG]

Originally Posted by Kurtnoise13

hey,

There are some new commands in the last mp4box. But I'm little bit confused with the syntax. Does anyone have succeed with -add-item arguments ?

Do you think this can help for the tracknames?

[Kurtnoise]

nope...

[Kurtnoise]

Celtic_Druid has made a new compile concerning mp4box and GPAC framework package : http://www.aziendeassociate.it/cd.asp?dir=/gpac/dev

changelog from the CVS :

03/06/05:
- fixed MPEG-2 aac importing and info dumping
- fixed 3GPP text display bug when stoping and changing an animationStream using a 3GPP text object.
- fixed AVC/H264 HP parsing
- added BIFS track visual size info at BT/XMT encoding stage
- MOVED FFMPEG INCLUDE FILES TO LATEST CVS VERSION to support AVC/H264 HP decoding
- added meta self reference item for dual-headed files
- commit MPEG-4 LATM Audio hinting patch and added rtp aggregation. RTP reassembler NOT UPDATED YET
- fixed bugs in TeXML parser
- fixed bt/xmt to MP4 encoding for IOD with single BIFS ESD.URLString set
- fixed SVG outline handling and SVG/SMIL anim on appearance/geometry
- fixed svg_loader compilation on winCE (ARM binaries and include to follow in next release of gpac_extra_libs)
- commit of SVG fixed-point version
- Fixed MP4Box spliter crash introduced by MetaBox support.
- Merged MP21 and MP4 handling, added meta support in MP4Box (creation/extraction - cf MP4Box -h meta)

FROM THIS DAY ON, ALL WORK ADDED TO GPAC IS COPYLEFT ENST

And FYI, I submitted a new feature request....

[JoeBG]

Originally Posted by Kurtnoise13

Celtic_Druid has made a new compile concerning mp4box and GPAC framework package : http://www.aziendeassociate.it/cd.asp?dir=/gpac/dev

changelog from the CVS :




And FYI, I submitted a new feature request....

Thanks, very nice

[vortex_hl]

is mp4box support audio delay function?
i want to mux h.264 video stream and mpeg4 aac stream but i should add 200ms delay to audio. how can i do this?

video: 1280x544 h.264 video made with x264
audio: 6 channel Mpeg-4 LC AAC made with foobar+nero
both are not raw

[Stacey Melissa]

Originally Posted by vortex_hl

is mp4box support audio delay function?
i want to mux h.264 video stream and mpeg4 aac stream but i should add 200ms delay to audio. how can i do this?

You have to set the delay when encoding the audio. mp4box won't set the delay.

[berrinam]

@Elias Just saw your post and your wikipedia article. Looks good . It's good to have a compilation of the information from Doom9 on Wikipedia