Hi, some time ago I fould this program. Compiled without errors but I dont know how to use it. From the official (?) mpeg4 audio site. Uni Hannover. Somebody knows more ?

Thanks,

H.

mpeg4_filter -h says this, dont understand it, format of the input files etc:

CCIR 601 <-> CIF/QCIF/SIF conversion (c) 1996,1997 Andreas Hutter, TU Muenchen / FhG-IFT Usage for downsampling: ./mpeg4_filter -s x [-c x] [-f] [-t | -b x | -g x] <input> <output> <nframe> Usage for upsampling: ./mpeg4_filter -u x <input> <output> <nframe> where "input" and "output" indicate the input and output filename "x" is the upsampling mode and "nframe" is the number of frames

option: -h help option: -s x number of lines per frame in CCIR format, x = {576, 486, 480}, DEFAULT is 576 option: -c input sequence is in 4:2:0 format option: -d input sequence is in "class D format" option: -f additionally produce SIF format option: -t input sequence is two level (0,255) alpha plane option: -b x input sequence is multilevel (0,1,..) alpha plane x = number of objects (x >= 2) option: -g x input sequence is grey scale alpha plane x = threshold level option: -o x manually adjust active picture area x = [0 .. 15], offset from left option: -r x replace first and/or last line to avoid retrace effects x = [1,2,3], where 1 = first, 2 = last, 3 = both option: -u x perform upconversion for display x specifies input format, x = {1, 2, 3, 4, 5}, where 1 = QCIF, 2 = CIF, 3 = SIF->CCIR, 4 = CIF->CCIR, 5 =
QCIF->CCIR

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