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

[PERET Pierre-Hugues]

Wow !!
installed helix client on windows, and it plays video AND audio.

So it IS a plaform or operator issue .
trying now to compile ffmpeg with amr support .


"Qui vivra verra !"



At 08:40 10/12/2005 +0100, you wrote:
>I tried streaming mp4+aac over http, but the mobile phone doesn't 
>recognize the stream , in fact it's the operator that dosen't recognize 
>it,if i put http://myserver:port , my operator says "bad url" . that's too 
>weird ...
>I didn't try to play the streamed mp4+aac (rtsp) with real player or helix 
>player on my PC, so i'll try this to know if it's a format/hinting issue.
>
>
>At 11:19 09/12/2005 -0800, Torben Knerr wrote:
>
>>On 12/9/05, PERET Pierre-Hugues 
>><<mailto:ph.peret at free.fr>ph.peret at free.fr> wrote:
>>>As i can stream a mp4 + AAC file from vlc+DSS to QTplayer on windows, i 
>>>don't know why i cannot play it on the mobile phone, maybe it's a player 
>>>issue (Realplayer) .
>>
>>Isn't Realplayer based on the Helix DNA Client (described in the link you 
>>gave)? If that is true, then only amr-wb/samr will be supported over rtsp 
>>according to their description. AAC+ would be supported via HTTP 
>>streaming, though. Can VLC encode AAC+?
>>
>>>Helix player can be recompiled with mpeg4 support (i'm not able at this 
>>>time to do this). But if someone can compile helix player with mpeg4 
>>>support for symbian OS, i would be glad to test it, but it think AAC 
>>>cannot be streamed with mpeg4 in rtsp or http, anyone can confirm this ?
>>
>>I'm sure it can be streamed (as it works fine with QTPlayer etc.), but it 
>>seems that Realplayer/Helix DNA Client for mobile is just not able to 
>>play it, which sucks :(
>>
>>>if i have time, i will recompile vlc with samr support. but it will not 
>>>be until next week.
>>
>>Btw: did you try to set up vlc to stream mp4+aac over http instead of 
>>rtsp? Wondering if this would work with the mobile...
>>
>>>At 13:21 08/12/2005 -0800, Torben Knerr wrote:
>>>
>>>>that sounds interesting... is it possible to stream mp4+aac over http 
>>>>with vlc?  can you relay this stream via dss and access it through an sdp file?
>>>>I would be very glad to hear if you succeed in this :)
>>>>
>>>>Otherwise my guess is trying to recompile vlc with amr-wb (a.k.a. samr) 
>>>>enabled, but I'm not sure if vlc can stream it... Maybe this would be 
>>>>the better solution because of the overhead of http.
>>>>
>>>>Plz keep us posted,
>>>>Torben
>>>>
>>>>
>>>>On 12/8/05, PERET Pierre-Hugues 
>>>><<mailto:ph.peret at free.fr>ph.peret at free.fr> wrote:
>>>>>Hello again,
>>>>>I fall upon a description of the realplayer for mobile phones, and it 
>>>>>seems that AAC audio cannot be streamed via rtsp with mpeg4 video. AAC 
>>>>>audio can be streamed in http.
>>>>>go here for more info 
>>>>><https://symbian.helixcommunity.org/>https://symbian.helixcommunity.org/
>>>>>
>>>>>
>>>>>At 08:51 08/12/2005 -0800, you wrote:
>>>>>>Hi,
>>>>>>
>>>>>>I tried that about half a year ago with the same setup (vlc+dss+sdp), 
>>>>>>and I was also facing the same problem with the sound.
>>>>>>What device do you have? I have a Nokia 6630. The strange thing about 
>>>>>>it was, that it played mp4/aac content locally without problems -- 
>>>>>>but when I tried to stream the same mp4/aac content then there was no 
>>>>>>sound. Maybe it is a problem with the device not supporting aac 
>>>>>>streamed over rtsp..?
>>>>>>Because that did not work, I tried to stream with amr/samr audio 
>>>>>>instead of aac, but it failed because vlc does not officially support 
>>>>>>amr. Well, you need to compile ffmpeg with amr enabled and then 
>>>>>>recompile vlc with the amr-enabled ffmpeg. That allowed me to play 
>>>>>>amr files locally with vlc, but streaming amr was not supported at this time...
>>>>>>
>>>>>>If you get it work somehow, either with aac or amr/samr, please let 
>>>>>>me know!
>>>>>>@VLC team: is it by now possible to stream amr/samr with a 
>>>>>>self-compiled ffmpeg lib? Did anyone succeed with that?
>>>>>>
>>>>>>Cheers,
>>>>>>torben
>>>>>>
>>>>>>
>>>>>>On 12/8/05, PERET Pierre-Hugues 
>>>>>><<mailto:ph.peret at free.fr>ph.peret at free.fr> wrote:
>>>>>>>Hello,
>>>>>>>I'm trying to stream contents transcoding or not to mobile phones.
>>>>>>>At the moment, i'm using VLC + DSS , but i cannot get the sound 
>>>>>>>working on
>>>>>>>my mobile phone.
>>>>>>>The file plays fine when accessed directly through the url
>>>>>>><http://??>rtsp://my.server.com:554/myfile.mp4 , but if i want to 
>>>>>>>stream it with vlc +
>>>>>>>DSS the mobile phone player (realplayer) doesn't load the sound. 
>>>>>>>Accessing
>>>>>>>the stream with QTplayer on my PC (windows) works fine.
>>>>>>>Any idea about that ?
>>>>>>>Someone got streaming for mobile phone (3GP) working ?
>>>>>>>The goal would be to have vlc transcode a live stream and feed the DSS
>>>>>>>server with a .sdp file.
>>>>>>>
>>>>>>>thanks
>>>>>>>
>>>>>>>--
>>>>>>>This is the streaming mailing-list, see 
>>>>>>><http://www.videolan.org/streaming/>http://www.videolan.org/streaming/
>>>>>>>To unsubscribe, please read 
>>>>>>><http://www.videolan.org/support/lists.html>http://www.videolan.org/support/lists.html
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