Fix usage of b_quant_factor. It was not possible to actually use the b_qfactor option, as b_quant_factor always got fixed to 2.0 (in any case when it actually mattered, namely when B-frames were being used).
Fix usage of b_quant_factor. It was not possible to actually use the b_qfactor
option, as b_quant_factor always got fixed to 2.0 (in any case when it actually
mattered, namely when B-frames were being used).


git-svn-id: a4d7c1866f8397a4106e0b57fc4fbf792bbdaaaf@6268 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg,prajnashi/ffmpeg