Some beginner questions

[Beginner1]

I have a few beginner questions-
1. What is the minimum baud rate to stream a video across the Internet in a
quality similar to what is common in instant messenger?
2. Should the video size matter?
Streaming from a VLC I could select with Http streaming, a codec from some 10
possibilities. Is there any preferable codec among the others for video of a
profile of speaking person?

Regards
Ronny

[dionoea]

If you have limited bandwidth constraints and want decent quality I'd advise that you use H264. The video resolution of course matters. This is a command line I used 1 or 2 years ago to stream Roland Garros with limited bandwidth (quality was good ... which was a requirement for a tennis match ;p)

Code: Select all

./vlc --udp-caching 2000 -vvv --color --no-stats --sout "#transcode{width=320,height=240,deinterlace,vcodec=h264,venc=x264{bframes=1,bpyramid,weightb,b-rdo,mixed-refs,no-fast-pskip,qcomp=0,qpmin=15,me=umh,merange=64,8x8dct,analyse=all,ref=2,keyint=100,subme=6,trellis=0,vbv-maxrate=120,vbv-bufsize=1300},vb=120,acodec=mpga,ab=8,channels=1,fps=10}:standard{access=mmsh,mux=asfh,dst=0.0.0.0:4212}" --sout-transcode-threads 4 udp://@239.255.10.60:1234

[Beginner1]

Thanks Mr. dionoea,
Just wonder-
What was the line baud rate that the above stream was working in?
I saw that you used udp. Can I use http with most paramaters that you used?

Regards
Beginner1

[dionoea]

The video bitrate was 120 bits/second, the audio bitrate 8 bits/second (see the documentation for more info about transcode). The input is udp (you could use something else). The output is mmsh (which is MMS over HTTP).