[streaming] Re: Streaming mp4+AAC to mobile phones

[Torben Knerr]

On 12/11/05, PERET Pierre-Hugues <ph.peret at free.fr> wrote:
>
> Didn't tried with ffmpeg's amr_wb.
> trying with http allways make my operator says wrong url, putting the full
> path or not.
>
> I talked on irc with some guys, and it seems that it's not very possible
> to do what i want , and someone oriented me to helix mobile server and
> mobile encoder, but it's far too expensive....
>
> as i want to take an already running stream and transcode it to 3gp , i
> think i cannot do that with opensource or free software.


I think it is possible with vlc+dss, as soon as the sound issue is solved.
Even though the stream might not be 100% 3gp spec compliant, it worked (at
least with video only).

I noticed that DSS is not able to stream mp4+aac to mobile phone -> nokia
> 6630 , sound is not working, even with the sample which comes with the
> server. Making aac streaming working on the mobile would be the
> solution.(amr is not my preference).


I think that's not possible with the 6630, because it can not play aac
streams :(
On the other hand DSS _is able_ to stream mp4+aac (as you can see the stream
with different players, such as QT), so imho it is definitely the mobile,
which is _not able_ to play rtsp-streamed aac.
But you are right, amr_nb is no solution because it is too crappy... amr_wb
might be okay, even though not as good as aac.

if you know a streaming server that can do that.. pls tell me.
> maybe tomorrow i will try amr_wb . i will keep you informed.
>
> NB : 3gp or mp4 generated by vlc doesn't play on the mobile phone on local
> playback (possibly beacause of the lack of hinted tracks)


Right, for local playback you need to hint the files. I used mp4box for
hinting and got it work to play locally with mp4+aac and mp4+amr (both
encoded with vlc). Don't remember if it worked with h263 video too, but i
guess so.

Good luck with the amr_wb stuff!
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