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Voice Guy wrote:
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<Question: Is it possible to save
both forward and reverse streams within the same file for RTPplay?
<
No it is not possible to save both forward and
reverse streams within the same file for RTPplay,
The rtpdump file contains the RTP packets for one
direction of the RTP stream.
If you have both a video RTP stream (e.g.
H.261 or H.263) and an audio RTP stream it is possible to use two
separate instances of rtpplay to send both
the audio and the video to JMPlayer at the same time. You will not get lip
synchronization, but anyway.
I think that JMPlayer handles several video streams
at the same time by opening up separate windows for each video
stream.
But I don't think that it it will handle several
simultaneous audio streams unfortunately. It could have been nice to have
JMPlayer mixing the two streams or playing one as left-channel and one as
right-channel.
It might be possible to make an own java program
that uses JMF (Java Media Framework), and then implement some more features than
in JMPlayer.
There are some code examples included with JMF that
are a bit similar to JMPlayer if I remember correct.
I will try to look into the Ethereal RTP Analysis
code more in detail. I guess that it shouldn't be so difficult to solve the
problem there. That will make it work for G.711, but for other codecs one
may need to use e.g. rtplay+JMPlayer or make a program that reads the
rtpdump files.
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<For the benefit of the group, here are the specific steps I used to get
it to work:
<
Good. I will try to document some other stuff
regarding my experiences with the RTP Analysis, rtptools, JMF/JMPlayer and
so on.
There are some sample RTP captures with both audio
and video here if anyone wants to experiment with using rtpplay
sending video towards JMPlayer or similar.
However this is just one direction (captured
multicast video+audio).
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