/usr/share/octave/site/m/pfstools/pfs_open_frames.m is in octave-pfstools 2.1.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 | function pfs_struct = pfs_open_frames( filePattern, frameSize )
## Open frames / image in one of the suppoted formats for reading or
## writing. Reading or writing frames is done with pfsput or pfsget.
##
## usage: pfs_struct = pfs_open_frames( filePattern, size )
## pfs_struct = pfs_open_frames( filePattern )
##
## This command is equivalent to pfsopen, but can handle files in any
## format supported by pfstools. 'filePattern' can specify files,
## frames, including '--frames' and '--skip-missing', similarly as
## 'pfsin' / 'pfsout' commands. You can pass also additional options,
## like --compression=RLE for exr files in filePattern.
## All option that take an argument (except --frames) must given in
## the form --option=value, that is without a space between an
## option and its argument.
##
## pfs_close_frames should be used instead of pfs_close to close pfsstream.
##
doWrite = exist( "frameSize" );
try
if( doWrite )
execStr = sprintf( "pfsout %s", filePattern );
fid = popen( execStr, "w" );
pfs_struct = pfsopen( fid, frameSize );
pfs_struct.fid = fid;
else
execStr = sprintf( "pfsin %s", filePattern );
fid = popen( execStr, "r" );
pfs_struct = pfsopen( fid );
pfs_struct.fid = fid;
endif
catch
fclose( pfs_struct.fid );
error( [ "pfs_open_frames: " __error_text__ ] );
end_try_catch
endfunction
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