[sip-comm-dev] audio/video streaming


#1

Hi my name is Giorgio and I write from Italy and I would like to ask you a
thing about some parts of the project SIP Communicator. In particular I'm
interested to see how I can make a java audio/video streaming over internet
using two desktop application under Linux, capturing audio from microphone
and video from usb cam with good quality (as a video conference) . Which
library are better for usb capture under linux and which other do you
suggest for h264 encoding and decoding. I know that these information are
available analyzing SIP Communicator but I'm new about felix and in a big
project as SIP Communicator I have some difficulties in order to recover
what I need (and also because I see that there are various solutions

Have a nice day to all

Giorgio


#2

Hi my name is Giorgio and I write from Italy and I would like to ask you a
thing about some parts of the project SIP Communicator. In particular I’m
interested to see how I can make a java audio/video streaming over internet

We currently offer audio and video streaming over the Internet using
SIP signaling and RTP media transport.

using two desktop application under Linux, capturing audio from microphone
and video from usb cam with good quality (as a video conference) . Which
library are better for usb capture under linux and which other do you

Our media offering is built on JMF in which we've plugged custom
capture, coding, decoding and playback.

We've implemented native audio capture and playback with PortAudio
using JNI as an alternative to JavaSound and so that we can provide
echo cancellation and noise reduction.

We're capturing video with LTI-CIVIL. Due to quality and performance
issues, we currently have initial implemenetations of our own native
video capture which seems to perform better using Video for Linux Two
on Linux, QuickTime on Mac OS X and DirectShow on Windows.

suggest for h264 encoding and decoding. I know that these information are

We do H.264 encoding and decoding with FFmpeg using JNI. I believe
FFmpeg has its own decoder and uses the x264 library for its encoder.

···

On Wed, May 19, 2010 at 3:22 PM, Giorgio <giorgio9@libero.it> wrote:

available analyzing SIP Communicator but I’m new about felix and in a big
project as SIP Communicator I have some difficulties in order to recover
what I need (and also because I see that there are various solutions

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