PROBLEM when editing DAT file!

[Sree]

hello friends,

I was trying to edit DAT file. it's a video song and i wanted to cut
and play only
a part of the song, programatically .

When i was splitting the song starting from byte 0 to some byte 'n'
(n>>0), wmplayer
is able to play succesfully.

But when i am splitiing the file stating from some byte 'n'( where
n>0),
wmp is not able to play the file ( i saved it with .dat extn.)

I also tried to achieve this with the actual .dat format by prefixing
the
44 bytes ( RIFF + length + channels +...etc.) to the edited file.
But again the same problem.

What should i fo?
PLEASE HELP ME SOLVE THIS ISSUE!

[Vladimir Oka]

Re: PROBLEM when editing DAT file!


Sree wrote:[color=blue]
> hello friends,
>
> I was trying to edit DAT file. it's a video song and i wanted to cut
> and play only
> a part of the song, programatically .
>
> When i was splitting the song starting from byte 0 to some byte 'n'
> (n>>0), wmplayer
> is able to play succesfully.
>
> But when i am splitiing the file stating from some byte 'n'( where
> n>0),
> wmp is not able to play the file ( i saved it with .dat extn.)
>
> I also tried to achieve this with the actual .dat format by prefixing
> the
> 44 bytes ( RIFF + length + channels +...etc.) to the edited file.
> But again the same problem.
>
> What should i fo?
> PLEASE HELP ME SOLVE THIS ISSUE![/color]

And how, exactly, is this topical in comp.lang.c???
You don't even mention the language you're using!

Try one of the Windows programming groups...

Cheers

Vladimir

[Keith Thompson]

Re: PROBLEM when editing DAT file!

"Sree" <sriharsha.srip ada@gmail.com> writes:[color=blue]
> I was trying to edit DAT file. it's a video song and i wanted to
> cut and play only a part of the song, programatically .
>
> When i was splitting the song starting from byte 0 to some byte 'n'
> (n>>0), wmplayer is able to play succesfully.
>
> But when i am splitiing the file stating from some byte 'n'( where
> n>0), wmp is not able to play the file ( i saved it with .dat extn.)
>
> I also tried to achieve this with the actual .dat format by
> prefixing the 44 bytes ( RIFF + length + channels +...etc.) to the
> edited file. But again the same problem.[/color]

This really isn't a C question.

Find out what format the file is in and look up the details of that
format (wotsit.org might be a good source of information). Given that
information, you *might* be able to figure out how to generate a valid
file containing some subset of the original file's data.

Once you've figured that out, feel free to re-post here if you're
having problems implementing it in C. (Don't expect us to know the
file format.)

--
Keith Thompson (The_Other_Keit h) kst-u@mib.org <http://www.ghoti.net/~kst>
San Diego Supercomputer Center <*> <http://users.sdsc.edu/~kst>
We must do something. This is something. Therefore, we must do this.