/home/meteor/bin/makevideos.sh: line 542: let: Short read: syntax error in expression (error token is "read")
date: extra operand ‘read’
Try 'date --help' for more information.
/home/meteor/bin/makevideos.sh: line 544: Short read+-1495667529: syntax error in expression (error token is "read+-1495667529")
/home/meteor/bin/makevideos.sh: line 567: let: Short read: syntax error in expression (error token is "read")
/home/meteor/bin/makevideos.sh: line 568: let: Short read: syntax error in expression (error token is "read")
/home/meteor/bin/makevideos.sh: line 569: let: Short read: syntax error in expression (error token is "read")
/home/meteor/bin/makevideos.sh: line 584:  8566 Exit 1                  ffmpeg -nostdin -loglevel quiet -vsync 0 -i $full -ss $start -t $len -pix_fmt yuv420p -f rawvideo -
      8567 Segmentation fault      (core dumped) | ~/bin/stack $fullwidth $fullheight > $jpg
identify: Empty input file `gran-20170524231225.jpg' @ error/jpeg.c/JPEGErrorHandler/322.
convert: invalid argument for option `-geometry': -composite @ error/convert.c/ConvertImageCommand/1674.
composite: Empty input file `gran-20170524231225.jpg' @ error/jpeg.c/JPEGErrorHandler/322.
composite: missing an image filename `gran-20170524231225-grid.jpg' @ error/composite.c/CompositeImageCommand/1613.
ContractViolation: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

caught exception: 
Precondition violation!
did not find a matching file type.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:240)

convert: unable to open image `gran-20170524231225-gnomonic0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `/tmp/tmp2-7925.png' @ error/convert.c/ConvertImageCommand/3210.
composite: unable to open image `/tmp/tmp2-7925.png': No such file or directory @ error/blob.c/OpenBlob/2709.
composite: unable to open file `/tmp/tmp2-7925.png' @ error/png.c/ReadPNGImage/3922.
composite: missing an image filename `/tmp/tmp-7925.png' @ error/composite.c/CompositeImageCommand/1613.
composite: unable to open image `/tmp/tmp-7925.png': No such file or directory @ error/blob.c/OpenBlob/2709.
composite: unable to open file `/tmp/tmp-7925.png' @ error/png.c/ReadPNGImage/3922.
composite: missing an image filename `gran-20170524231225-gnomonic.jpg' @ error/composite.c/CompositeImageCommand/1613.
rm: cannot remove ‘gran-20170524231225-gnomonic0000.tif’: No such file or directory
ContractViolation: 
Precondition violation!
Unable to open file 'gran-20170524231225-mask.jpg'.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:206)

caught exception: 
Precondition violation!
Unable to open file 'gran-20170524231225-mask.jpg'.
(/build/buildd/hugin-2014.0.0+dfsg/src/foreign/vigra/vigra_impex/codecmanager.cxx:206)

convert: unable to open image `gran-20170524231225-gnomonicmask0000.tif': No such file or directory @ error/blob.c/OpenBlob/2709.
convert: no images defined `gran-20170524231225-gnomonic-mask.jpg' @ error/convert.c/ConvertImageCommand/3210.
rm: cannot remove ‘gran-20170524231225-gnomonicmask0000.tif’: No such file or directory
Traceback (most recent call last):
  File "/home/meteor/bin/refinetrack.py", line 25, in <module>
    im = Image.open(args.img)
  File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 2237, in open
    fp = builtins.open(fp, "rb")
IOError: [Errno 2] No such file or directory: 'gran-20170524231225-gnomonic-mask.jpg'
usage: refinetrack.py [-h] [-r RADIUS] img start end
refinetrack.py: error: too few arguments