Gday
I was wondering what could be the most efficient method to slow down a movie.
I have here some Super 8mm material that I reshoot frame by frame in ppm
files.
The original are playing at a nominal rate of 18 fps.
Once encoded in mpeg2, grany is almost running through the TV screen.
I thought that pulldown would be an option to bring 18 to 24 but obviously
not since mpeg2enc is complaining about the rate
Is ther a way I can go around that ?
++ WARN: [mpeg2enc] 3:2 movie pulldown with frame rate set to decode rate not
display rate
++ WARN: [mpeg2enc] 3:2 Setting frame rate code to display rate = 5
(30.000fps)
INFO: [mpeg2enc] Encoding MPEG-2 video to test_pulldown2.mpeg
INFO: [mpeg2enc] Horizontal size: 720 pel
INFO: [mpeg2enc] Vertical size: 576 pel
INFO: [mpeg2enc] Aspect ratio code: 1 = 1:1 pixels
INFO: [mpeg2enc] Frame rate code: 5 = 30.0++ WARN: [mpeg2enc] 3:2 movie
pulldown with frame rate set to decode rate not di
splay rate
++ WARN: [mpeg2enc] 3:2 Setting frame rate code to display rate = 5 (30.000
fps)
INFO: [mpeg2enc] Encoding MPEG-2 video to test_pulldown2.mpeg
INFO: [mpeg2enc] Horizontal size: 720 pel
INFO: [mpeg2enc] Vertical size: 576 pel
INFO: [mpeg2enc] Aspect ratio code: 1 = 1:1 pixels
INFO: [mpeg2enc] Frame rate code: 5 = 30.0
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] GOP SIZE RANGE 6 TO 15
INFO: [mpeg2enc] Setting colour/gamma parameters to "unspecified"
INFO: [mpeg2enc] Progressive format frames = 1
INFO: [mpeg2enc] 3:2 Pulldown selected frame decode rate = 24.000 fps
**ERROR: [mpeg2enc] Sample rate is greater than permitted in specified Level
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] GOP SIZE RANGE 6 TO 15
INFO: [mpeg2enc] Setting colour/gamma parameters to "unspecified"
INFO: [mpeg2enc] Progressive format frames = 1
INFO: [mpeg2enc] 3:2 Pulldown selected frame decode rate = 24.000 fps
**ERROR: [mpeg2enc] Sample rate is greater than permitted in specified Level
here is the line I am using
cat *.ppm | ppmtoy4m -F 18000:1000 -L | y4mscaler -I sar=1:1 -O size=720x576
-O chromass=420_MPEG2 -O sar=PAL | yuvdenoise -b 20,20,680,536 -r 16 -t 2 -c
80 -F -L 160 | mpeg2enc -r 16 -I 0 -B 96 -g 6 -G 15 -a 1 -H -4 2 -2 1 -F 2 -f
8 -M 2 -p -o test_pulldown.mpeg
Or either using yuvfps ?
Any suggestion welcome
Thanks a lot
E
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