On Thu, Mar 04, 2004 at 11:52:34PM +0100, [EMAIL PROTECTED] wrote:i had that jumping picture once too... its because of the 480 vertical resolution. i dont think it is a good idea to resize from full pal (or whatever you get) to *anything* in aspect 4:3, because ivtv (and the mpeg chip itself) create interlaced mpeg streams and so somehow everything gets messed up with resize.
Howdy,
I know I've seen posts (somewhere) regarding this, but I can't recall/find find'em.
Freevo, Haup 350 card, ivtv drivers, everything work perfectly
except that I get a small ugly looking little white ripple
at the very top of the picture.
Replying to me own mail ...
I've got the IVTV_OPTIONS set to:
IVTV_OPTIONS = { 'input' : 4, # 'resolution' : '720x576', 'resolution' : '640x480', 'aspect' : 2, 'audio_bitmask' : 233, 'bframes' : 3, 'bitrate_mode' : 1, # 'bitrate' : 4000000, 'bitrate' : 6500000, # 'bitrate_peak' : 4000000, 'bitrate_peak' : 10000000, 'dnr_mode' : 0, 'dnr_spatial' : 0, 'dnr_temporal' : 0, 'dnr_type' : 0, 'framerate' : 0, 'framespergop' : 15, 'gop_closure' : 1, 'pulldown' : 0, # 'stream_type' : 10, 'stream_type' : 14, }
Original values commented out.
Anyway together with the boring white ripple at the top, I also have another weirdnes on the captured data. The picture is kindof shifting up/down, just a tiny bit, at a freq of about twice/sec. Odd.
the white stuff on top of the screen _is_ in the tv signal. a normal television does not show it because of overscanning the picture on the screen. you should do the same when playing your captures. with mplayer this is pretty easy: just set the screensize to something bigger than the actual screensize and zoom.
and if you recode them for vcd or something just crop it...
Flo
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