[Live-devel] Zero-copy RTP server?

2008-05-27 Thread Chris Wein
I have not looked at the livemedia code in depth but my impression is that it is not easy to do a true zero-copy RTP server on linux. I have a zero copy stack for raw UDP using an ethernet controller with h/w checksum and scatter-gather DMA (transmit gathers the header and the payload separate

Re: [Live-devel] VLC vs. mplayer

2007-08-16 Thread Chris Wein
Out of the box VLC has a 1 second delay. I have seen it work at about 200ms end to end over a LAN which is not too bad. Checking settings->preferences->demuxers->rtp and check advanced options. Reduce the caching value as low as you can without observing underflow.Date: Thu, 16 Aug 2007 11:0

Re: [Live-devel] Couple of questions

2007-08-08 Thread Chris Wein
Note that ADTS is not quite an elementary AAC stream so if you demux the AAC you might just get a stream of raw data blocks with no headers at all which cannot be decoded unless the decoder knows the sampling frequency and channel config.Date: Wed, 8 Aug 2007 15:52:05 -0700To: [EMAIL PROTECTED]:

[Live-devel] Time to RTCP sync

2007-08-06 Thread Chris Wein
I have a client and server running on an embedded system, one with an AVC encoder and one with an AVC decoder. All is working well except for the time it takes for the streams to be synchronized using RTCP - once the connection is initiated it takes several seconds for the sync to occur. Our s