It requires:
mpeg2enc
ppmtoy4m
pngtopnm
The first two are in the mjpegtools package for Ubuntu. Not enough
pngtopnm.
At the moment, I see in the console:
------------------
mkNoSignal.sh: 10: pngtopnm: not found
INFO: [ppmtoy4m] Command-line Parameters:
INFO: [ppmtoy4m] framerate: 25:1
INFO: [ppmtoy4m] pixel aspect ratio: 4:3
INFO: [ppmtoy4m] pixel packing: RGB
INFO: [ppmtoy4m] interlace: none/progressive
INFO: [ppmtoy4m] starting frame: 0
INFO: [ppmtoy4m] # of frames: 1, repeat last frame until
done
INFO: [ppmtoy4m] chroma subsampling: 4:2:0 MPEG-2 (horiz.
cositing)
**ERROR: [ppmtoy4m] Failed to read first frame.
INFO: [mpeg2enc] SETTING EXTENDED MMX for MOTION!
INFO: [mpeg2enc] SETTING SSE and MMX for TRANSFORM!
INFO: [mpeg2enc] SETTING EXTENDED MMX for PREDICTION!
**ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: system error
(failed read/write)!
mkNoSignal.sh: 19: pngtopnm: not found
INFO: [ppmtoy4m] Command-line Parameters:
INFO: [ppmtoy4m] framerate: 25:1
INFO: [ppmtoy4m] pixel aspect ratio: 16:9
INFO: [ppmtoy4m] pixel packing: RGB
INFO: [ppmtoy4m] interlace: none/progressive
INFO: [ppmtoy4m] starting frame: 0
INFO: [ppmtoy4m] # of frames: 1, repeat last frame until
done
INFO: [ppmtoy4m] chroma subsampling: 4:2:0 MPEG-2 (horiz.
cositing)
**ERROR: [ppmtoy4m] Failed to read first frame.
INFO: [mpeg2enc] SETTING EXTENDED MMX for MOTION!
INFO: [mpeg2enc] SETTING SSE and MMX for TRANSFORM!
INFO: [mpeg2enc] SETTING EXTENDED MMX for PREDICTION!
**ERROR: [mpeg2enc] Could not read YUV4MPEG2 header: system error
(failed read/write)!
----------------------
On the home page http://www.libpng.org/pub/png/apps/pnmtopng.html there
is something, but I don't understand how is it to compile in linux.
Where can I get a binary deb-package pngtopnm/pnmtopng?
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