perform case-insensitive FOURCC comparison of built-in video codecs

Dmitry Timoshkov dmitry at
Wed Apr 8 05:16:54 CDT 2009

<Joerg-Cyril.Hoehle at> wrote:

> +#define compare_fourcc(fcc1, fcc2) (((fcc1)^(fcc2))&~0x20202020L)

You ignore case even for mixed cased fourcc codes, but test only
2 cases: all lower/upper case codes, please test that cases too.


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