On Wed, 19 Jan 2005, Steven Boswell II wrote:
> OK. The last I asked this question, I think Bernhard
> told me that mpeg2enc wouldn't give me what I expected.
> Guess this is something else to try!
I know that feeding "-F 1" rate in and specifying the "-p" (2:3
pulldown) and "-F 4" flags _will_ work - I've done it.
++ WARN: [mpeg2enc] Specified display frame-rate 29.97 will over-ride
++ WARN: [mpeg2enc] (different!) frame-rate 23.98 of the input stream
INFO: [mpeg2enc] Progressive input - selecting progressive encoding.
INFO: [mpeg2enc] Encoding MPEG-2 video to foo.m2v
INFO: [mpeg2enc] Horizontal size: 720 pel
INFO: [mpeg2enc] Vertical size: 480 pel
INFO: [mpeg2enc] Aspect ratio code: 1 = 1:1 pixels
INFO: [mpeg2enc] Frame rate code: 4 = 30000.0/1001.0 (NTSC VIDEO)
INFO: [mpeg2enc] Bitrate: 7500 KBit/s
INFO: [mpeg2enc] Quality factor: 8 (Quantisation = 9) (1=best, 31=worst)
INFO: [mpeg2enc] Field order for input: none/progressive
INFO: [mpeg2enc] Sequence unlimited length
INFO: [mpeg2enc] Search radius: 16
INFO: [mpeg2enc] Using one-pass rate controller
INFO: [mpeg2enc] GOP SIZE RANGE 9 TO 15
INFO: [mpeg2enc] Setting colour/gamma parameters to "NTSC"
INFO: [mpeg2enc] Progressive format frames = 1
INFO: [mpeg2enc] 3:2 Pulldown selected frame decode rate = 23.976 fps
When you play the movie with MPlayer it will detect the pulldown
and undo it thus:
VIDEO: MPEG2 720x480 (aspect 1) 29.970 fps 7500.0 kbps (937.5 kbyte/s)
demux_mpg: 24fps progressive NTSC content detected, switching framerate.
That sounds like what you're going to be doing and it'll work just fine
I wouldn't try putting straight -F1 content on a DVD - not sure
if that would be compatible with everyone's players and TV sets. But
a 2:3 pulldown with progressive content is ok.
Cheers,
Steven Schultz
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