Forum Discussion

bmckim's avatar
bmckim
Visitor
15 years ago

Rhozet Carbon Coder Preset + Encoding h264 HLS

We are currently working with Rhozet (http://www.rhozet.com/carbon_coder.html) tech support to help them tune their HLS preset. Their current preset works fine with the iPhone/iPad, but the Roku runs...
Roku Developer Program
RokuKevin's avatar
RokuKevin
Visitor
15 years ago
The encoding quide is in the SDK contains this info:

% cat /usr/share/ffmpeg/libx264-roku.ffpreset
coder=1
flags=+loop
cmp=+chroma
partitions=+parti8x8+parti4x4+partp8x8+partb8x8
me_method=umh
subq=8
me_range=16
g=250
keyint_min=25
sc_threshold=40
i_qfactor=0.71
b_strategy=2
qcomp=0.6
qmin=10
qmax=51
qdiff=4
bf=4
refs=4
directpred=3
trellis=1
flags2=+wpred+mixed_refs+dct8x8+fastpskip