Question / Help x264 lookAhead
- Thread starter sandrix
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- lookahead x264 x264 options
BionicClick
Member
rc_lookahead=
rc_lookahead=60
there is also lookahead_threads=1
put a number after it 10-60 you can go higher if you wish. 60 = 60 seconds
en.wikipedia.org
rc_lookahead=60
there is also lookahead_threads=1
put a number after it 10-60 you can go higher if you wish. 60 = 60 seconds
beandog's x264 preset reference
dev.beandog.org
Advanced Video Coding - Wikipedia
sandrix
Member
It doesn't seem to work for me. I got the opinion that lookahead works by default, when the bframes = parameter is turned on
But I could be wrong.
I always get this result with and without teams.
bframes=1 (here is clearly not what it should be)
Assassin's Creed Origins Cinematic Trailer
bframes=1 Cyberpunk 2077 Trailer
and this is the result via nvenc h.264 (new). bframe 1 and lookahead
But I could be wrong.
I always get this result with and without teams.
bframes=1 (here is clearly not what it should be)
Assassin's Creed Origins Cinematic Trailer
bframes=1 Cyberpunk 2077 Trailer
and this is the result via nvenc h.264 (new). bframe 1 and lookahead
sandrix
Member
rc_lookahead=
rc_lookahead=60
there is also lookahead_threads=1
put a number after it 10-60 you can go higher if you wish. 60 = 60 seconds
beandog's x264 preset reference
dev.beandog.org
Advanced Video Coding - Wikipedia
thanks, will try to figure))
sandrix
Member
I managed to figure it out. I can say with confidence that "lookahead" works by default for x264. 3 b-frames are used. To turn off lookahead, you can use the lookahead_threads = 0 command. I am still testing the most optimal number of b-frames to get the best quality. I can confidently say that no more than 2, the rest of the tests are different.