RTP support in J2ME

hi,
i am doing a proj to stream captured video to mobile phones. i can stream them using rtp. but in the mobile, i am not able to receive it.
the code is
player = Manager.createPlayer("rtp://192.168.10.81:42060/video");
this throws a mediaexception: cannot create player for rtp 192.168.10.81:42060/video
can anybody help me plz... its urgent.
thanks in advance
premitha

HI all,...
appearantly we all have the same problems...
i want 2 implement rtp player for ipaq h5550. Ive used j9 but i dont know how to implement mmapi to ipaq so j9 can run it....
i want 2 use the jeode vm with jmf, but i dont have any jeode coz ive lost my cd...and they (HP) doesnt support it anymore,
i heard in the forum that rtp player worked with j9 and jmf crossplatform. so would anyone who have made it please help all of us,..
im beginning 2 felt sick about this.....
thx
regards ,
hendra

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Darshan Prajapati -- About RTP support in J2ME

Hello friends I am developing the SIP client on J2ME. I want to route speech packets in real time in both client server direction. Also I want to continuously monitor the microphone to get the speech of the user and then simultaneously encode that speech and send it over wifi or internet through RTP packets.
So how can I do this? Please tell me api for getting continuous input from microphone(I do not want to first record and then send it.) and also making RTP packets to send it on internet.
Thanks in advance !
Darshan Prajapati

There is no RTP support in J2ME. Vikram Goyal has done some experiments using current mmapi but it does not work because of limitations of Manager and Player classes.
http://today.java.net/pub/a/today/2006/08/22/experiments-in-streaming-java-me.html?page=1

RTP support in Burrito

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Do burrito support RTP/RTSP . I need to build a rtp streaming app for android. Can Burrito be used for it ?
If possible pls give some reference link .
Regards,
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There is no RTP support in J2ME. Vikram Goyal has done some experiments using current mmapi but it does not work because of limitations of Manager and Player classes.
http://today.java.net/pub/a/today/2006/08/22/experiments-in-streaming-java-me.html?page=1

Jdk1.3+ support in J2ME

Hi,
Can somebody tell me if j2ME supports all classes written using JDk1.3 and JDK1.4? I mean if we write some java classes using Jdk1.3 will they run seamlessly on a PDA or mobile device that supports the latest version of J2ME? (By seamlessly i mean that we wont have to introduce any changes in them just because some classes of jdk1.4 are not supported by J2ME...)
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If by j2me you mean MIDP (the profile most java enabled mobile-phones implement), than it's definitively not possible.
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RTP simulation on j2me for voice transfer

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i m developing a voip app for mobile. i have some probs.
can we have rtp impln on j2me ?
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Sebastien,
The 7960 phones have an option called PC Voice Vlan Access in the CCM Phone configuration. The default is on for this. If you don't want your phone traffic to be captured on the PC port disable this. Here is the documentation description.
PC Voice VLAN Access : Indicates whether the phone will allow a device attached to the PC port to access the Voice VLAN. Disabling Voice VLAN Access will prevent the attached PC from sending and receiving data on the Voice VLAN. It will also prevent the PC from receiving data sent and received by the phone. Set this setting to Enabled if an application is being run on the PC that requires monitoring of the phones traffic. These could include monitoring and recording applications and use of network monitoring software for analysis purposes.
This is a required field.
Default: Enabled.
Additionally as an FYI the 7970(and possibly some other newer phones) has a secondary option as well.
Span to PC Port : Indicates whether the phone will forward packets transmitted and received on the Phone Port to the PC Port. Select Enabled if an application is being run on the PC Port that requires monitoring of the IP Phone's traffic such as monitoring and recording applications (common in call center environments) or network packet capture tools used for diagnostic purposes. To use this feature PC Voice VLAN access must be enabled.
This is a required field.
Default: Disabled.
Please rate any helpful posts
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Which handheld devices support both J2ME and Wi-Fi?

Which handheld devices support both J2ME and Wi-Fi?

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After pairing instance, the bluetooth does not re-connect on subsequent attempts (it does try to reconnect). On reconnect attempt it fails and presents "tap to pair" under the bluetooth network.
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Past: Icon, 928, 720, N9, N97(ugh)

Help reqd fr rtp streaming in j2me....

hi,
i am new to the world of J2ME n my doing a project fr my final year.i am developing an application, wherein i can chat via bluetooth.This involves chatting via text mssgng,audio n video chat.I hv implemented text module via client/server architecture.
I tried the same method fr live audio/video transfer,but m facing problems..I can save the file temporarily but
The stream parameters read null values while streaming..can't figure out the problem..
However ,i thought of an alternative ie. to use RTP fr streaming those files.
But nw im clueless as to whr to begin,as i read j2me does nt support rtsp/rtp.also vry few devices support it..
pls ppl,i need ur timely help,n il be vry grateful fr all tht u can share..

HI all,...
appearantly we all have the same problems...
i want 2 implement rtp player for ipaq h5550. Ive used j9 but i dont know how to implement mmapi to ipaq so j9 can run it....
i want 2 use the jeode vm with jmf, but i dont have any jeode coz ive lost my cd...and they (HP) doesnt support it anymore,
i heard in the forum that rtp player worked with j9 and jmf crossplatform. so would anyone who have made it please help all of us,..
im beginning 2 felt sick about this.....
thx
regards ,
hendra

Unicode support in j2me urgent

does kvm supports unicode?
how can we display arabic characters by using j2me?
thanks
iffat,beenish

the MIDP is much more restricted in terms of localization than j2se. however, the CLCD can handle 16-bit unicode characters using InputStreamReader and OutputStreamWriter.
if you look at a constructors:
InputStreamReader (InputStream ins, String enc)
the class converts the input bytestream into a unicode character stream based on the encoding given by the value enc.
more info:
http://java.sun.com/j2se/1.3/docs/guide/intl/encoding.doc.html

Adding MP4/RTP support in JMF

Hi All,
I want to add support in jmf to stream RTP streams for MP4 files. For this i used Fobs4Jmf to read mp4 files from the local system. As fobs4jmf only read MP4 file from local system and render it on jmstudio, but not able to create MP4V/RTP and MP4A/RTP, therefore i tried writing my own packetiser for MP4 files. But then i realised fobs4jmf uses FFMPEG_VIDEO codec to read all videos and FFMPEG_AUDIO codec to read all audios. FFMPEG_VIDEO converts all video types MP4,mpeg etc to RGB format and FFMPEG_Audio converts all audio types to LINEAR format. Now i want to send this data in MP4/RTP packet but have no idea how to convert RGB in MP4V and Linear into MP4A.
I think i am missing something. Or i am doing it all together wrong.
My ultimate aim is to stream videos to mobile using RTSP. I have written my RTSP server but for that i need RTP streams.
Is there any other way to stream RTP streams to mobile from jmf.
Kindly help me i am totally stuck.

search4rajat wrote:
Hi, is anyone there who can help me. Where is captfoss and other gurus of jmf. I was on vacation.
Kindly help me it is very important. Any slight insight may be helpful.... like how to stream RTP to mobile.I doubt it's "very important"...
If the remote system handles MP4/RTP streams, then you'll likely need to do nothing else but write an MP4 packetizer... and the packetizer probably won't need to do anything but break the file up into peices, no special processing.
[http://java.sun.com/javase/technologies/desktop/media/jmf/2.1.1/solutions/CustomPayload.html]
Modify that example so that instead of taking in AudioFormat.LINEAR and outputting CUSTOM_PCM, make it so it takes in MP4 and outputs MP4_RTP... and just play around with the example. I've never written a custom packetizer, so I don't have any grand advice other than, use that example and try to create a simple MP4 packetizer.
Your processor shouldn't be transcoding from MP4 to RGB if you're wanting to transmit in MP4-RTP. It should be transcoding from MP4 directly to MP4-RTP, which is what your custom packetizer will do...

RTP Support

I want to connect mobile device with a remote PC that has created an RTP session .How can I do this ?
I checked with this
Manager.createPlayer("rtp://127.0.0.1:9998/video");
but it is not working and an exception is thrown
so please help me if any one has idea abot this?.

For my project, I initially considered JMF...but ran into issues due to the level of abstraction it provides. With JMF, I was able to play audio easily but to actually do anything else with it was almost impossible or very difficult given the provided interfaces. And judging from the last release, I don't think Sun is actively supporting it.
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hoping for an early reply
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sojourner_jdk wrote:
Hi DarrylBurke,
You are right. Its not "Format". String has "format" function ..
String s = String.format("The Number : %d %s", num, str);Is there such class/api in J2ME?
Thanks,
Regards,
-DKIn J2ME MIDP, [String has no "format" function|http://java.sun.com/javame/reference/apis/jsr118/java/lang/String.html|javadoc].

Re: Dubt about the JMF 2.1.1 - Supported Formats and RTP supported

Post your JMF question on that forum:
http://forum.java.sun.com/forum.jspa?forumID=28

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Support for JDk1.3+ in J2ME

Hi,
Can somebody tell me if j2ME supports all classes written using JDk1.3 and JDK1.4? I mean if we write some java classes using Jdk1.3 will they run seamlessly on a PDA or mobile device that supports the latest version of J2ME? (By seamlessly i mean that we wont have to introduce any changes in them just because some classes of jdk1.4 are not supported by J2ME...)
Tahir.

I suppose that if you don't use classes that aren't supported by J2ME and are supported by JDK1.3+ you won't have a problem.
Everething Depends on the J2ME technology you are using. For example if you are using Personal Java your classes should be compatible with JDK1.2 or less.
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Does Verizon support J2ME?

We are developing J2ME cell phone based applications for mobile learning and test preparation See
PowerVocabForGRE2006 at http://www.applimobile.com/
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Please help! We also have a trial download on our website, so if you wan to try it out on your Verizon phone before replying, that would be awesome. Thanks.

If it support BREW, it does not support J2me! Solution would be:
1. to port the J2me code to brew
2. to make BREW wrappers for the J2me code stuff.
And you don't need to spam to aks questions. It works well without all the crap around it ;)

FMS3 support for RTP

Hi,
I am trying out a "live" application in FMS3.0 which
involoves streaming a live feed from a host in rtp format to
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wanted to know whether anyone has tried rtp support for
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FMS3 doesn't support RTP/RTSP stream ingest.

RTP support in J2ME

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