flvenc: do not mux more than one stream per type

FLV does not support multiple audio or video streams.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
cmdutils: Fix build with lavfi disabled

Signed-off-by: Diego Biurrun <diego@biurrun.de>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  cmdutils: Fix build with lavfi disabled
  flvenc: do not mux more than one stream per type

Merged-by: Michael Niedermayer <michaelni@gmx.at>
lavfi/earwax: remove pointless store

Signed-off-by: Paul B Mahol <onemda@gmail.com>
lavfi/il: remove pointless store

Signed-off-by: Paul B Mahol <onemda@gmail.com>
x86: float dsp: butterflies_float SSE

97c -> 49c
Some codecs could benefit from more unrolling, but AAC doesn't.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
butterflies_float: replace 2 lea by 2 add

adds are simpler instructions and should be faster or equally fast
on all cpus

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>