Kevin Atkinson wrote:
When playing back an mpeg with encoded VBI data the closed caption are displaying 1-2 seconds too early. This time seams to correspond with the encoding delay. Also the pack headers before each VBI packet are bogus: the System Clock Reference is always 36036 and the mux rate is not the same as the other pack headers.From reading the ivtv-devel this seams like a known problem which isn't fixed because the developer didn't have an NTSC system. Thus, I am more than willing to work with anyone to fix this problem. I am a competent programmer myself so if someone can point me in the right direction I am willing to take a stab at fixing it myself.
Don't know if this will help, I'm working on a small tool to display teletext data. I'm in PAL land so I've no idea if CC has the same format as teletext. I've only tested this on ivtv-0.4.0 and the tar file should be unpacked in the ivtv-directory and then run make from there. There *is* some information in the README.
This is work in progress and lots tiding of the code is required. There is one thing that I haven't figured out and that's how to wprintf a character above 0x7F. So the program only works on non-unicode xterms and it should work on the linux console. It uses SGR escape sequences to colour the
Typical usage is: vbishow -p100 vbishow -v /dev/vbi4 -m8 HTH Duncan
vbishow-0.1.3.tar.bz2
Description: Binary data
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