Have to admit I'm not using the latest CVS (lots of offsets when applying patch) but, looks like some files missing from the patch?
e.g. On make I get (amongst others) WARNING: Failure to find: vbidecoder.h WARNING: Failure to find: vbilut.h WARNING: Failure to find: osdtypeteletext.h WARNING: Failure to find: vbidecoder.cpp WARNING: Failure to find: osdtypeteletext.cpp Paul On Tue, 1 Mar 2005 22:47:58 +0100, Martin Barnasconi <[EMAIL PROTECTED]> wrote: > Here the first experimental patch for the vbi decoding for PVR cards using the > IVTV drivers. Although its far from perfect (that's why it's classified as > experimental;-) it gives you some idea how things are implemented and I > challenge you to contribute to fill in the missing gaps or to improve the > code. > > What it does: > it relies on having embedded vbi in the MPEG stream as defined in the IVTV > doc's. The embedded vbi stream includes the magic cookies "itv0' and 'ITV0' > to mark the beginning of a vbi private stream. That's why some additional > lines are added to the avformatdecoder and ffmpeg decoder classes, to > recognize a vbi data steam. If detected, it will start decoding in the > vbidecoder class. An additional OSD overlay osdtypeteletext is used for > teletext and subtitles. Whole process is controlled from tv_play routines. > Pages are updated after receiving new content, so even subtitling pages (e.g. > 888) do work! > > What it does not do yet (TODO ;-) > - It overrules the 'T' key for teletext/CC for non-encoder cards > (bttv/saa7134) . The original vbi code (part of nuppelvideoplayer/recorder) > is still in, but I rather see this becoming part of this new vbidecoder > class. Like to see 'C' for CC/subtitles and 'T' for teletext. Problem: 'C' > function already in use... > As some people have a mixed PVR/bttv setup, we should detect which card is > operational and select the correct vbi decoder. > - CC is not working yet, as we do not have this here in Europe. Please test > the results in ccbuffer and in your stderr terminal and please report your > findings. > - Teletext is text-only. No mosaic or other fancy stuff like blanking, FLOF, > blicking, reveal functions yet. Uses current CC_font in OSD. Should be > teletext font in future. for the OSD overlay, we suffer from the color > mapping of YUV420 here. Use a font with sufficient width (eg bold fonts) to > be able to read the blue or red text. > - other embedded data like WSS/PIL/CNI/VPS/PDC captured but not used. > Framework in place, detection and corresponding actions (e.g. signals and > slots) to be defined. > - TT OSD overlay is now transparent. Future work is to have black, > transparent, or even left-TV/right-TT (for 16:9 screens) or TT-PIP > implemented (for big screens) > > Give it a try and report your findings. Improvements are very welcome. > > Martin > > > _______________________________________________ > mythtv-dev mailing list > [email protected] > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-dev > > > >
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