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Top Forums UNIX for Advanced & Expert Users Modifying binary file by editing Hex values ? Post 88350 by Nicol on Thursday 3rd of November 2005 09:18:14 AM
Old 11-03-2005
Modifying binary file by editing Hex values ?

Hi ,

i'm using special binary file (lotus notes) and modifying an hexadecimal address range with windows hex editor and it works fine !

The file is an AIX one and i'm forced to transfert (ftp) it before modifying it and re-transfert !

NOW i would do this directly under AIX !

I can display the file with "od -h -Ax" and i wonder how to modify the all range in red with a shell script ?

od -h file.nsf
...........................................
0000140 0000 0025 2ff1 cb40 0000 0000 3204 0000
0000150 da03 0000 ca02 0000 4601 0000 1201 0000
0000160 4201 0000 0000 0000 2e02 0000 0000 0000
0000170 0000 0000 0000 0000 0000 0000 0000 0000
0000180 0000 0000 0000 0000 3e01 0000 0000 0000
0000190 0000 0000 3a01 0000 1e01 0000 0000 0000
00001a0 1a01 0000 0000 0000 0000 0000 0601 0000
00001b0 0000 000

the purpose here , is to write "0" over all values of the range !

Something like : "cat file.nsf|.................|od -h -Ax"

thanks in advance

Christian
 

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mlib_VideoColorYUV444int_to_ARGBint(3MLIB)		    mediaLib Library Functions			mlib_VideoColorYUV444int_to_ARGBint(3MLIB)

NAME
mlib_VideoColorYUV444int_to_ARGBint - color convert YUV interleaved to ARGB interleaved SYNOPSIS
cc [ flag... ] file... -lmlib [ library... ] #include <mlib.h> void mlib_VideoColorYUV444int_to_ARGBint(mlib_u32 *ARGB, const mlib_u8 *YUV, const mlib_u8 *A_array, mlib_u8 A_const, mlib_s32 w, mlib_s32 h, mlib_s32 dlb, mlib_s32 slb, mlib_s32 alb); DESCRIPTION
The YUV pixel stream is converted into an ARGB pixel stream. All pixel components are 8-bit unsigned integers. All buffers have dimensions w and h. The alpha values for this function work in the following fashion: o If A_array pointer is not NULL, the values are taken from there. It has to have the same dimensions as the Y buffer. o If A_array pointer is NULL, the alpha values for every pixel are set to A_const. The following equation is used: |R| |1.1644 0.0000 1.5966| [|Y| | 16.0000|] |G| = |1.1644 -0.3920 -0.8132| * [|U| - |128.0000|] |B| |1.1644 2.0184 0.0000| [|V| |128.0000|] PARAMETERS
The function takes the following arguments: ARGB Pointer to output buffer. YUV Pointer to Y input buffer. A_array Array of alpha values. A_const Constant alpha value. w Image width in pixels. h Image height in lines. dlb Linebytes for output buffer. slb Linebytes for input buffer. alb Linebytes for alpha buffer. RETURN VALUES
None. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Committed | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
mlib_VideoColorYUV420seq_to_ARGBint(3MLIB), mlib_VideoColorYUV411seq_to_ARGBint(3MLIB), mlib_VideoColorYUV422seq_to_ARGBint(3MLIB), mlib_VideoColorYUV444seq_to_ARGBint(3MLIB), mlib_VideoColorYUV420seq_to_ABGRint(3MLIB), mlib_VideoColorYUV411seq_to_ABGRint(3MLIB), mlib_VideoColorYUV422seq_to_ABGRint(3MLIB), mlib_VideoColorYUV444seq_to_ABGRint(3MLIB), mlib_VideoColorYUYV422int_to_ARGBint(3MLIB), mlib_VideoColorYUYV422int_to_ABGRint(3MLIB), mlib_VideoColorYUV444int_to_ABGRint(3MLIB), mlib_VideoColorUYVY422int_to_ARGBint(3MLIB), mlib_VideoColorUYVY422int_to_ABGRint(3MLIB), mlib_VideoColorUYV444int_to_ARGBint(3MLIB), mlib_VideoColorUYV444int_to_ABGRint(3MLIB), attributes(5) SunOS 5.11 2 Mar 2007 mlib_VideoColorYUV444int_to_ARGBint(3MLIB)
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