Re: [streaming] Video Streaming over GPRS

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I found this article<http://ieeexplore.ieee.org/Xplore/login.jsp?url=3Dhttp=
%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4061132%2F4061133%2F04061201.pdf%3Fis=
number%3D4061133%26prod%3DCNF%26arnumber%3D4061201%26arSt%3D449%26ared%3D45=
6%26arAuthor%3DGiovanni%2520Gualdi%253B%2520Rita%2520Cucchiara%253B%2520And=
rea%2520Prati&authDecision=3D-203>

*Low-Latency Live Video Streaming over Low-Capacity Networks
Giovanni Gualdi; Rita Cucchiara; Andrea Prati
Multimedia, 2006. ISMapos;06. Eighth IEEE International Symposium on
Volume , Issue , Dec. 2006 Page(s):449 - 456
Digital Object Identifier   10.1109/ISM.2006.102
Summary:This paper presents an effective system for streaming over
low-capacity networks (such as GPRS and EGPRS) of live videos with low
latency. Existing solutions are either too complex or not suitable to our
scope. For this reason, we developed a complete, ready-to-use streaming
system based on H.264/AVC codec and UDP/IP stack. The system employs
adaptive controls to achieve the best tradeoff between low latency and good
video fluency, by keeping the UDP buffer occupancy at the decoder side
between two given levels. Our experiments demonstrate that this system is
able to transmit live videos at CIF format and 10 fps over GPRS/EGPRS with
very low latency (1.73 sec on average, basically due to the network delay),
good fluency and average quality, measured with PSNR, of 31 dB on GPRS at 2=
3
kbps at 10 fps*

So I wonder if it can be possible to reproduce this using VLC ? or Has
anyone of you already tried to stream video on such bandwidth ? (yes some
area in the world are still using GPRS for the moment :( ).

BR,

Emmanuel

2009/12/27 Marshall Eubanks <[email protected]>

> We (AmericaFree.TV) stream 3GPPx video at 96 and 160 Kbps using QTSS.
> This is MPEG-4 + AAC.
>
> The quality is pretty decent at 160 Kbps.
>
> Marshall
>
>
> On Dec 26, 2009, at 3:05 PM, Emmanuel CHANSON wrote:
>
>  Even h264 codec ?
>>
>> Emmanuel
>>
>> 2009/12/27 matt <[email protected]>
>> Emmanuel,
>>
>> You want video over a variable (20 - 50) kilo bit link ?
>>
>> That's as slow, or slower, than dial up.
>>
>> I may be wrong, but there is no codec that I am aware of that provides a=
ny
>> kind of quality over such a narrow link.
>>
>> Best Regards
>>
>> Matt
>>
>>
>> Emmanuel CHANSON wrote:
>> No ideas?
>>
>> Regards,
>>
>> Emmanuel
>>
>> 2009/12/20, Emmanuel CHANSON <[email protected]>:
>>
>> Hello,
>>
>> I would like to ask you about the possibility to stream video over GPRS.
>> I made some test and the bandwidth I have can reach 50 kbit/sec, let's s=
ay
>> 20 kbit/sec (average).
>>
>> Do you know if it is possible to stream video encoded with VLC using thi=
s
>> bandwidth (GPRS connection on mobile)?
>>
>> If yes what do you advise to use?
>> - last VLC version 1.0.4 ?
>> - codec video: X264 ?
>> - codec audio: AAC ?
>>  - fps ? , audio bitrate & video bitrate
>> - encapsulation: ?
>> - protocole: HTTP ? (slow) maybe UDP is better or RTP/RTSP?
>>
>> If some of you has ever experimented this and can give me some clues?
>>
>> Regards,
>>
>> --
>> Emmanuel
>> @email : [email protected]
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> --
>> Emmanuel
>>
>> CHANSON Emmanuel
>> Mobile Nouvelle-Cal=E9donie: +687.77.35.02
>> Mobile France: +33 (0) 6.68.03.89.56
>> @email : [email protected]
>> _______________________________________________
>> streaming mailing list
>> To unsubscribe or modify your subscription options:
>> http://mailman.videolan.org/listinfo/streaming
>>
>
>


--=20
Emmanuel

CHANSON Emmanuel
Mobile Nouvelle-Cal=E9donie: +687.77.35.02
Mobile France: +33 (0) 6.68.03.89.56
@email : [email protected]

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I found this <a href=3D"http://ieeexplore.ieee.org/Xplore/login.jsp?url=3Dh=
ttp%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4061132%2F4061133%2F04061201.pdf%3=
Fisnumber%3D4061133%26prod%3DCNF%26arnumber%3D4061201%26arSt%3D449%26ared%3=
D456%26arAuthor%3DGiovanni%2520Gualdi%253B%2520Rita%2520Cucchiara%253B%2520=
Andrea%2520Prati&amp;authDecision=3D-203">article</a><br>
<br><i><strong>Low-Latency Live Video Streaming over Low-Capacity Networks<=
/strong><br>
            Giovanni Gualdi; Rita Cucchiara; Andrea Prati<br>
            Multimedia, 2006. ISMapos;06. Eighth IEEE International Symposi=
um on<br>
            Volume , Issue , Dec.  2006 Page(s):449 - 456<br>
            Digital Object Identifier =A0 10.1109/ISM.2006.102<br><strong>S=
ummary:</strong>This
paper presents an effective system for streaming over low-capacity
networks (such as GPRS and EGPRS) of live videos with low latency.
Existing solutions are either too complex or not suitable to our scope.
For this reason, we developed a complete, ready-to-use streaming system
based on H.264/AVC codec and UDP/IP stack. The system employs adaptive
controls to achieve the best tradeoff between low latency and good
video fluency, by keeping the UDP buffer occupancy at the decoder side
between two given levels. Our experiments demonstrate that this system
is able to transmit live videos at CIF format and 10 fps over
GPRS/EGPRS with very low latency (1.73 sec on average, basically due to
the network delay), good fluency and average quality, measured with
PSNR, of 31 dB on GPRS at 23 kbps at 10 fps</i>
            <br><br>So I wonder if it can be possible to reproduce this usi=
ng VLC ? or Has anyone of you already tried to stream video on such bandwid=
th ? (yes some area in the world are still using GPRS for the moment :( ).<=
br>
<br>BR,<br><br>Emmanuel<br><br><div class=3D"gmail_quote">2009/12/27 Marsha=
ll Eubanks <span dir=3D"ltr">&lt;<a href=3D"mailto:[email protected]">t=
[email protected]</a>&gt;</span><br><blockquote class=3D"gmail_quote" st=
yle=3D"border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex=
; padding-left: 1ex;">
We (AmericaFree.TV) stream 3GPPx video at 96 and 160 Kbps using QTSS.<br>
This is MPEG-4 + AAC.<br>
<br>
The quality is pretty decent at 160 Kbps.<br>
<br>
Marshall<div><div></div><div class=3D"h5"><br>
<br>
On Dec 26, 2009, at 3:05 PM, Emmanuel CHANSON wrote:<br>
<br>
</div></div><blockquote class=3D"gmail_quote" style=3D"border-left: 1px sol=
id rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div>=
<div></div><div class=3D"h5">
Even h264 codec ?<br>
<br>
Emmanuel<br>
<br>
2009/12/27 matt &lt;<a href=3D"mailto:[email protected]" target=3D"_blank"=
>[email protected]</a>&gt;<br>
Emmanuel,<br>
<br>
You want video over a variable (20 - 50) kilo bit link ?<br>
<br>
That&#39;s as slow, or slower, than dial up.<br>
<br>
I may be wrong, but there is no codec that I am aware of that provides any =
kind of quality over such a narrow link.<br>
<br>
Best Regards<br>
<br>
Matt<br>
<br>
<br>
Emmanuel CHANSON wrote:<br>
No ideas?<br>
<br>
Regards,<br>
<br>
Emmanuel<br>
<br>
2009/12/20, Emmanuel CHANSON &lt;<a href=3D"mailto:[email protected]=
m" target=3D"_blank">[email protected]</a>&gt;:<br>
<br>
Hello,<br>
<br>
I would like to ask you about the possibility to stream video over GPRS.<br=
>
I made some test and the bandwidth I have can reach 50 kbit/sec, let&#39;s =
say<br>
20 kbit/sec (average).<br>
<br>
Do you know if it is possible to stream video encoded with VLC using this<b=
r>
bandwidth (GPRS connection on mobile)?<br>
<br>
If yes what do you advise to use?<br>
- last VLC version 1.0.4 ?<br>
- codec video: X264 ?<br>
- codec audio: AAC ?<br>
 =A0- fps ? , audio bitrate &amp; video bitrate<br>
- encapsulation: ?<br>
- protocole: HTTP ? (slow) maybe UDP is better or RTP/RTSP?<br>
<br>
If some of you has ever experimented this and can give me some clues?<br>
<br>
Regards,<br>
<br>
--<br>
Emmanuel<br>
@email : <a href=3D"mailto:[email protected]" target=3D"_blank">emm=
[email protected]</a><br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
<br>
-- <br>
Emmanuel<br>
<br>
CHANSON Emmanuel<br>
Mobile Nouvelle-Cal=E9donie: +687.77.35.02<br>
Mobile France: +33 (0) 6.68.03.89.56<br>
@email : <a href=3D"mailto:[email protected]" target=3D"_blank">emm=
[email protected]</a><br></div></div>
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streaming mailing list<br>
To unsubscribe or modify your subscription options:<br>
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">http://mailman.videolan.org/listinfo/streaming</a><br>
</blockquote>
<br>
</blockquote></div><br><br clear=3D"all"><br>-- <br>Emmanuel<br><br>CHANSON=
 Emmanuel<br>Mobile Nouvelle-Cal=E9donie: +687.77.35.02<br>Mobile France: +=
33 (0) 6.68.03.89.56<br>@email : <a href=3D"mailto:[email protected]=
m">[email protected]</a><br>


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