Hi, I am very happy with Ciscos MPEG4IP but I do it in a more primitiv
way:
On Tue, 22 Mar 2005, Kall, Bruce A. wrote:
> 1) Create content and split into m4v and aac files.
> 2) Use mp4creator to create and hint the mp4 output:
I would just do
mp4creator bla.m4v bla.mp4 and
mp4creator bla.aac bla.mp4 and
mp4creator -l bla.mp4, just to be shure
that it was ok, to see the tracks, then
something like
mp4creator -hint=1 bla.mp4 and
mp4creator -hint=2 bla.mp4 and
for the audio and video track, thats probably
what "basic hinting" in QT Pro is.
> mp4creator -c audio.aac -hint movie.mp4
> mp4creator -hint -I video.m4v movie.mp4
-I for interveaved, what is it good for?
> mp4creator -optimize movie.mp4
This is necessary for HTTP streaming. I wouldnt do it for RTSP.
> mp4creator -list movie.mp4
>
> and you get somthing like:
>
> Track Type Info
> 1 audio MPEG-4 AAC LC, 18.320 secs, 3 kbps, 44100 Hz
> 2 hint Payload mpeg4-generic for track 1
> 3 video MPEG-4 Simple @ L1, 21.880 secs, 1000 kbps, 320x240 @
> 25.00 fps
> 4 hint Payload MP4V-ES for track 3
Well, you dont get this with QT and mp4creator anymore, this is for MPEG 4
System streams, 3D etc, believed to be dead.
> 5 od Object Descriptors
> 6 scene BIFS
So maybe your MPEG4IP is rather old. There have been a lot of subtil
changes, in DSS as well, this is what those interoperability tests are
good for.
>
>
> I end up with a file that I can stream from DSS and view it on a web
> page with the Quicktime plugin.
Thats cool isnt it?;-)
The coolest is to say mp4creator -H divx.avi bla.mp4, but QT doesnt like
mp3 audio in bla.mp4s, which is a pity, there is no difference in
streaming and mp4player can display it.
>
> The problem between these types of mp4 files and ones exported from QT6
> is that when you click on the timeline in the QT web plugin, it jumps
> cleanly around using the Qt6-derived mp4 file, but with the
> mp4creator-derived mp4 file when you click on a new location on the
> timeline, you only get a few blocks on the video from the new location
> on the timeline and then when you hit play it takes about 5 seconds to
> catch up and update the entire video as it's playing on the web page.
>
> Are there any suggestion on making mp4 files that are more
> 'QT-compatible' from Linux so you can jump around the files with the web
> plugin? (My videos are anywhere from 30 minutes to 3 hours so you need
This is an interesting problem!
I have some files, that have this "jumping" feature aka the timeline
in QT, but not in Real or other players. All players should support it in
the same way. But this just shows, that theory and practice of RTSP is not
the same, ISMA or not.
Have you made tests with this gpac mp4box tool?
H.
> to be able to jump around). If not, is there anyway in OSX to write a
> shell script to Hint a file assuming it is automounted on an OSX machine
> (droplets etc don't seem to work as then you need human interaction).
>
> Thanks,
> Bruce
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