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Jony Kwa · Guest

I have a program that utilize IWMSyncReader. The program basically
graph the image from WMV video files and send it to other library to
be converted to another video type.

But the result is always upside down. anyone know how to tell the
IWMSyncReader to turn the image upside down?

I realize that the problem may be introduced from convertion from YUV
to RGB24.
I solved it currenlty by doing memcpy, but that slow the compression
time.

the way that i prefer is to tell IWMSyncReader to invert the image to
be upside-down in the buffer.

Thanks

Jony Kwa · Guest

Thanks for the reply.
Your answer is very ambigious. As I basically read WMV file, put it in
the buffer, and send it to my write function. Similar thing happend to
AVIStreamRead (Another Win Media functions to read AVI file).

I read somewhere that if the biHeight is positive from those reading,
it will mean the image will be flipped. So is there a switch that will
enable the reading of those images the other way when we realize that
the image is flip?
My idea before was to set the image property for WMV but have been
unsuccessful.

Thanks for you answer, and I really appreicate the effort =).

Jony Kwa · Guest

Thanks for your answer, I have got the solution.
The problem was i used 2 different system and both of them confuse to each other.
So I just pass plain YUV format from YUV-WM-library to YUV of my other library.
And they work like charm.

Thanks again ;P

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