[MPlayer-DOCS] [PATCH] precise (fractional) values for NTSC rates, round 2
Corey Hickey
bugfood-ml at fatooh.org
Mon May 16 07:41:46 CEST 2005
There have been a few recent patches to mencoder.xml and mplayer.1 that
use 23.976 instead of 24000/1001, etc. I suppose it's my job to police
that sort of thing :), but I haven't been paying attention.
Here's a patch to update them. It's mostly just a straight conversion to
the fractional values, but I made a couple other changes as well. I've
quoted those hunks below.
------------------------------------------------------------------------
@@ -581,7 +581,7 @@
</para></listitem>
<listitem><para>
<emphasis role="bold">Computer Graphics (CG)</emphasis>: Can be
- any framerate, but some are more common than others; 23 and
+ any framerate, but some are more common than others; 24 and
30 frames per second are typical for NTSC, and 25fps is typical
for PAL.
</para></listitem>
------------------------------------------------------------------------
Here I assumed "23" was a typo and changed it to "24".
------------------------------------------------------------------------
@@ -692,29 +692,29 @@
<title>NTSC regions:</title>
<listitem><para>
If <application>MPlayer</application> prints that the framerate
- has changed to 23.976 when watching your movie, and never changes
- back, it is almost certainly 24fps content that has been
+ has changed to 24000/1001 when watching your movie, and never changes
+ back, it is almost certainly progressive content that has been
"soft telecined".
------------------------------------------------------------------------
I played around a little with explaining that the video might have
originally been either 24000/1001fps or
24fps-that-was-then-slowed-down-to-match-NTSC, but then I decided on
just writing "progressive" because it seemed less awkward.
-Corey
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