I wrote a simple program which just receive a stream using rtp and dump it
based on live555.In this program,I increased the socket buffer to 2,000,000
bytes using the function increaseReceiveBufferTo() provided by live555.Then
compare the dumped file and the original file,I found it's much smaller than
the original file.When playing the dumped file using a common media player like
VLC or mplayer, the video picture has broken.The original file's bitrate is
about 20M bit per second.That seems many data has dropped.But my network card
works good,it can work in 100M bit/s. Then I perceive there is something wrong
in rtp processing in live555 under high bitrate environment.
Sourav Pal <[EMAIL PROTECTED]> 写道：
2008/6/10 Xzou <[EMAIL PROTECTED]>:
Recently,I'm trying to construct a embedded rtsp/rtp client using live555 in
order to receive very high bitrate media stream which could be nearly 20M bit
per second.But the bad news is my client lost a lot of packets when the bitrate
of media stream is higher than 4M bit per second.
My cpu frequency is 200M hz and have no more than 64M ram available for
application softwares.
How could I fix it?
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Where are your packets getting dropped ? How did you measure it ?
You might want to increase the size of the udp buffers. That does help
sometimes.
Thanks,
Sourav
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