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Questions tagged [x265]

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1
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2answers
173 views

How do I convert 10-bit H.265 videos to H.264 without quality loss?

My laptop can't handle 10bit H.265 / HEVC videos, so I'm looking to convert them to 10bit H.264. How do I do this using, say, ffmpeg, with the least quality loss? And how can I convert 10-bit H.265 to ...
2
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1answer
243 views

FFMPEG: x265 video encode options

There's quite a bit of info about using ffmpeg (more) to encode with x265: HEVC. However, when I try to encode my video from x264 to x265 with scaling to reduce overall bit rate in order to save even ...
0
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0answers
109 views

ffmpeg x265 - How do i saturate my 4 x 8 cores / 16 threads e5?

I have been trying ffmpeg to get to saturate my 4 x E5-4620 (8 core) CPUs with all kinds on parameters found on this forum. I cant get it to work. here is an example, but other attempts eg. threads 0, ...
0
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1answer
114 views

NVENC HVEC in FFMPEG unsharp on fast movement

I use FFMPEG with NVENC HVEC and tried several options the last days but finally i was not able to reach the same quality as CPU Encoding. The main issue here is that fast scenes are getting unsharp. ...
0
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1answer
181 views

libx265 & ffmpeg: the better compression, the larger files?

Trying to squeeze the last bit, I made the finding, that my files get larger then smaller. Unfortunately I must have misinterpreted some parameters. Maybe you can help me. The reference is -preset ...
1
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0answers
203 views

Time-based instead of frame-based zones (with different CRF) for ffmpeg+x264/x265 encoding?

x264/5 have a zones parameter to support different encode settings for part of a video, but it only accepts frame numbers, not timestamps. This is a minor inconvenience with constant-frame-rate video,...