On 12/12/05, <b class="gmail_sendername">PERET Pierre-Hugues</b> <<a href="mailto:ph.peret@free.fr">ph.peret@free.fr</a>> wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I fall on a 3gp stream that works on my mobile and it's HE-AAC .<br>
refer to this message :
<a href="http://lists.apple.com/archives/Streaming-server-dev/2005/Oct/msg00024.html" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://lists.apple.com/archives/Streaming-server-dev/2005/Oct/msg00024.html
</a><br>
so this confirm the fact that this might be a .sdp issue.</blockquote><div><br>
...because the mobile tries to load the stream (instead of telling you
that this type of stream is not supported), right? So maybe it is an
sdp issue...<br>
One thing to test if aac is supported at all might be:<br>
1) encode a video with mp4/aac using vlc<br>
2) hint the encoded file with mp4box and put it in DSS' streaming dir<br>
3) access the encoded file directly without using an sdp file (e.g. <a href="rtsp://server:port/myfile.mp4">rtsp://server:port/myfile.mp4</a>) to see if aac sound works.<br>
==> If it does not work, i bet it's the phone not soppurting aac.
Then we are sure that there's nothing wrong with the sdp (because it's
not involved here) and it's also not the fault of VLC's mp4a packetizer
(because this one is not involved when VLC encodes to file)<br>
==> On the other hand, if it works, then there must be something
wrong with either the sdp or the packetize_mp4a method -- or something
completely different :-/<br>
</div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
when playing with the sdp file,i can make my mobile phone loading my aac
stream, but not playing it (player stuck at the end of
loading).</blockquote><div><br>
Unfortunately I can't test the stream right now, because my current provider does not allow any other traffic than http :(<br>
</div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
looking at the code of the rtp module, i noticed amr / mpa4 sections
seems inappropriate for mobile streaming (looks normal). unfortunatly i'm
not able to implement such thing. Maybe i'm completely wrong ...<br>
correct me in this case.</blockquote><div><br>
<br>
</div><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><span class="e" id="q_10820eef3291be46_1">
At 17:48 12/12/2005 +0100, you wrote:<br>
<blockquote type="cite">Well,<br>
back again !<br>
streaming amr_wb is the same as amr_nb.. it doesn't play in QTplayer
because it doesn't have the codecs, but the mobile player seems to accept
it, but no sound is coming.<br>
switch back to amr_nb and play with the sdp file....<br><br>
<br>
At 11:55 12/12/2005 +0100, you wrote:<br>
<blockquote type="cite">I came to the same conclusion as
you .<br>
For now, i'm working on the sdp stuff which i think is the problem. Or it
might be the reflector module of DSS (in this case i doubt i could do
anything for it).<br><br>
At 17:02 11/12/2005 -0800, Torben Knerr wrote:<br><br>
<br>
<blockquote type="cite">On 12/11/05, <b>PERET
Pierre-Hugues</b>
<<a href="mailto:ph.peret@free.fr" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">ph.peret@free.fr</a>>
wrote:<br>
<blockquote type="cite">Didn't tried with ffmpeg's
amr_wb.<br>
trying with http allways make my operator says wrong url, putting the
full path or not.<br><br>
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....<br><br>
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.
</blockquote><br>
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). <br><br>
<blockquote type="cite">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).</blockquote><br>
I think that's not possible with the 6630, because it can not play aac
streams :( <br>
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.<br>
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.<br><br>
<blockquote type="cite">if you know a streaming server that
can do that.. pls tell me.<br>
maybe tomorrow i will try amr_wb . i will keep you informed.<br><br>
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)</blockquote><br>
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.<br><br>
Good luck with the amr_wb
stuff!</blockquote></blockquote></blockquote>
</span></div></blockquote></div><br>