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by lordnk
10 Sep 2009 18:53
Forum: VLC stream-output (sout)
Topic: [Debian] Do I need to install ffmpeg for transcoding?
Replies: 1
Views: 532

Re: [Debian] Do I need to install ffmpeg for transcoding?

Your sout string can be manipulated quite extensively - in your case you will just need to add a transcode at the start of the chain to get all the files to go to the 'standard' module in the same format. At the moment your sout string isn't performing any transcoding, hence why changing your depend...
by lordnk
02 Sep 2009 10:59
Forum: VLM
Topic: Steam onto a webserver
Replies: 1
Views: 1813

Re: Steam onto a webserver

If I understand correctly, you want to stream TO a http daemon, then have the http daemon provide that stream to clients viewing a particular page. The problem here is that you can't really stream to an IP address using http. The protocol is an inbound one, i.e. you make a connection to a listening ...
by lordnk
02 Sep 2009 08:56
Forum: VLC stream-output (sout)
Topic: G.711 u-Law over RTP
Replies: 13
Views: 11604

Re: G.711 u-Law over RTP

Hey, I was able to get VLC to stream g711 correctly using an sout chain of transcode:rtp. VLC does not seem to read ulaw from file correctly, so a new demux was needed. In fact, VLC demuxes ulaw as standard pcm, so it reads the file completely off-target. Creation of a new FrameInfo type for ulaw at...
by lordnk
17 Aug 2009 19:35
Forum: VLC stream-output (sout)
Topic: G.711 u-Law over RTP
Replies: 13
Views: 11604

Re: G.711 u-Law over RTP

I've managed to write a packetizer which is skeletonned from the rtp_packetize_split function (I figured that was a good place to start). It takes 160 bytes or 20ms of g711 from the buffer, puts in in the payload & sends it to the rtp common packetizer. I also made some tweaks to the common pack...
by lordnk
17 Aug 2009 07:25
Forum: VLC stream-output (sout)
Topic: G.711 u-Law over RTP
Replies: 13
Views: 11604

Re: G.711 u-Law over RTP

Hmm.. Any pointers? I've had a look at the source for the existing packetizers and, not being a C++ person, don't really understand it. However, I do have some experience in programming, and it looks pretty simple - I take it that's why you say probably . What exactly does VLC pass to the packetizer...
by lordnk
14 Aug 2009 07:01
Forum: VLC media player for Linux and friends Troubleshooting
Topic: RTP/UDP/IP(v4 and v6)
Replies: 5
Views: 1050

Re: RTP/UDP/IP(v4 and v6)

Wireshark is pretty dumb by default, so yeah, it won't detect the RTP properly. Try running wireshark or tshark with -d udp.port=1234,rtp (obviously replace the port you are sending traffic to) - this tells wireshark to decode the traffic to udp port 1234 as RTP, and you might find that all the pack...
by lordnk
14 Aug 2009 03:07
Forum: VLC stream-output (sout)
Topic: Change UDP Packet Size
Replies: 3
Views: 1219

Re: Change UDP Packet Size

I noticed that when using the RTP output module and the MTU option together, I was able to control the packet size/timing. That is to say, setting an MTU of 10 would send packets at roughly 1ms or less apart. Mtu of 20 send packets about 2ms apart, etc etc up to 170, where the packets end up 'maxing...
by lordnk
14 Aug 2009 02:59
Forum: VLC stream-output (sout)
Topic: G.711 u-Law over RTP
Replies: 13
Views: 11604

Re: G.711 u-Law over RTP

How difficult would such a thing be to write? I'm no programming expert, but it's very important that I can get VLC to send the 20ms packet size!
by lordnk
13 Aug 2009 04:04
Forum: VLC stream-output (sout)
Topic: G.711 u-Law over RTP
Replies: 13
Views: 11604

G.711 u-Law over RTP

Hi everyone, I am having a bit of an issue with getting G.711 to stream in the way I need. The intention is to replace the RTP stream output of a Cisco Call Manager's hold music with our own RTP stream. The RTP stream coming from CCM contains one stream which reports it is ulaw 8000hz, as does my st...

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