Fw: [MPlayer-users] looking for good starting values for vf_decimate
Heyo, Can someone help here ? I dont have a clue about vf_decimate. Attila Kinali Begin forwarded message: Date: Mon, 23 Jun 2003 11:24:48 -0400 From: "Brian J. Murrell" <brian@interlinx.bc.ca> To: mplayer-users@mplayerhq.hu Subject: [MPlayer-users] looking for good starting values for vf_decimate [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html] I have a stream I captured from NTSC television in MJPEG format. I want to convert it to MPEG4 using mencoder (CVS). I have noticed that the origiinal must have been 24fps but rather than telecining it for NTSC, they simply duplicated 1 frame out 4 to increase the framerate to NTSC. It looks like I can use the vf_decimate filter to eliminate the duplicate frames, but I am not quite sure of what to use for the the values of max:hi:lo:frac. max=1 seems like a sane value, but what to use for hi, lo, and frac considering this was captured from analog cable (probably fairly noisy, although visually it looks quite acceptable). Any ideas? Thanx, b. _______________________________________________ RTFM!!! http://www.MPlayerHQ.hu/DOCS Search: http://www.MPlayerHQ.hu/cgi-bin/htsearch http://mplayerhq.hu/mailman/listinfo/mplayer-users -- Emacs ist für mich kein Editor. Für mich ist das genau das gleiche, als wenn ich nach einem Fahrrad (für die Sonntagbrötchen) frage und einen pangalaktischen Raumkreuzer mit 10 km Gesamtlänge bekomme. Ich weiß nicht, was ich damit soll. -- Frank Klemm, de.comp.os.unix.discussion
Hi,
It looks like I can use the vf_decimate filter to eliminate the duplicate frames, but I am not quite sure of what to use for the the values of max:hi:lo:frac. max=1 seems like a sane value, but what to use for hi, lo, and frac considering this was captured from analog cable (probably fairly noisy, although visually it looks quite acceptable).
Any ideas?
the defaults are usually good, but i used thsi for vey low quality ntsc vcd with same idiot repeat-4th-frames telecining: -vop decimate=-4:8192:512:0.2 the -4 makes it sure that no more frames dropped at still scenes, and the rest gave enough range to skip similar frames A'rpi / Astral & ESP-team -- Developer of MPlayer G2, the Movie Framework for all - http://www.MPlayerHQ.hu
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Attila Kinali