how to convert *.avi to *.mp4

[Garfiled]

I know to use mp4creator.
e.g. mp4creator -c=c:\test.avi test.mp4
mp4creator -c=c:\test.aac test.mp4
it's ok and can play.
But i want to broadcast it in helix server,realone does not support
Why?helix server can broadcast .mp4.
I mean:how i convert *.avi to *.mp4 that can be broadcasted in
helix server without reecoder.
sorry for my poor english,for it's not my native languish
thanks�I

[bond]

Hi Garfield

First of all you will need an avi which includes mpeg-4 compatible streams (dont use b-frames!)

than you need to use the -hint option in mp4creator (i guess -optimize cant hurt too) to make the file isma compliant

[Garfiled]

Originally posted by bond
Hi Garfield
this time ,I do it using a movie without B-frames,I have analysed it.
and i try two ways
first: mp4creator -H -c=e:\test.avi test.mp4
second:use mp4ui (optimize ,isma compliant)
but realone still can't play it
every time it says:video/X-RN-MP4
but i can play it using realone locally.
why?
First of all you will need an avi which includes mpeg-4 compatible streams (dont use b-frames!)

than you need to use the -hint option in mp4creator (i guess -optimize cant hurt too) to make the file isma compliant

[bond]

sorry cant help you than anymore, i am no streaming specialist

i can only you tell you to search around on the mpeg4ip site, they have some guides there (also try their cvs (http://cvs.sourceforge.net/viewcvs.py/*checkout*/mpeg4ip/mpeg4ip/doc/) and their forum)

you can also try another muxing tool (for example mp4box (http://gpac.sourceforge.net/auth_mp4box.php))

[Garfiled]

Originally posted by bond

thanks all the same^_^

sorry cant help you than anymore, i am no streaming specialist

i can only you tell you to search around on the mpeg4ip site, they have some guides there (also try their cvs (http://cvs.sourceforge.net/viewcvs.py/*checkout*/mpeg4ip/mpeg4ip/doc/) and their forum)

you can also try another muxing tool (for example mp4box (http://gpac.sourceforge.net/auth_mp4box.php))

[The Edge]

@bond

Why no b-frames?
I've never had issues with MP4+B-frames.
Even Quicktime plays them back fine. Arn't B-frames MP4-ISO compatible? (Advanced Simple Profile):confused:

@Garfiled
Tried muxing with 3ivX & Graphedit.


Edge

[bond]

Originally posted by The Edge
Why no b-frames?i doubt that b-frames are isma compliant (garfiled wants to stream his mp4 files)

[The Edge]

I see.
Slightly O/T but read somewhere about *.Mx4 files.....do you know of them? I think it's possibly something to do with http download through browzer?

Cheers

Edge

[Garfiled]

I mean i want to broadcast *.mp4 not download it via http browser
you can try it

[Stux]

Take you AVI, drop it on graphedit

then use the 3ivx MP4 Muxer to mux the AVI -> MP4

.avi -> AVI Splitter => 3ivx Media Muxer -> .mp4

Take your MP4, drop it on QT6, then export it to MPEG4, with pass through on the video+audio, and set a stream hinting.

Darwin Streaming Server et al should then be able to stream your file

[The Edge]

Originally posted by Stux
Take you AVI, drop it on graphedit

then use the 3ivx MP4 Muxer to mux the AVI -> MP4

.avi -> AVI Splitter => 3ivx Media Muxer -> .mp4

Take your MP4, drop it on QT6, then export it to MPEG4, with pass through on the video+audio, and set a stream hinting.

Darwin Streaming Server et al should then be able to stream your file

Would that work with 6Ch AAC sound?

Edge

[Stux]

I assume it would

*BUT*

And its a big one ;)

QT6.4 recognizes multichannel AAC but it does not play it! Not even a peep.

My assumption is that the MP4 Parser/Muxer in QT has no problems with Multichannel AAC, the only problem is the AAC decoder. When doing pass-through the audio decoder is not involved.

But2: If QT doesn't play multichannel audio... is there really much point in streaming it to RTSP MP4 players?

Early betas of QT6.4 did have multichannel audio support and it was apparently pulled...

[The Edge]

Thanks Stux.
I'll check this out later tonite.
Keep up the good work.

Edge