Russell O'Connor wrote:
> On Tue, 5 Nov 2002, Joe Drew wrote:
>>if (is_constant_bit_rate(file))
>
> Oh, Is this easy to figure out?
Err, I should have specified - this is a semi-heuristic: decode the
first n (I think for me n = 10) frames and see if the bitrate changes.
If so this is a vbr file. Otherwise it's not.
This heuristic is pretty accurate in my experience.