New answers tagged encoding
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Use -x265-params log-level=0
Reference: https://x265.readthedocs.io/en/3.1/cli.html#cmdoption-log-level
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I followed your instructions. I changed localhost to 127.0.0.1:10000, and I was using input from an rtsp.
Here is my command. It worked for me. I was able to get the stream in VLC player.
ffmpeg -i "rtsp://someurl/" -c:v copy -c:a aac -listen 1 -ar 44100 -ab 64000 \
-f flv rtmp://127.0.0.1:10000/live
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I've been running some tests lately (2H2020) concerning reducing the size of some high quality movies of my collection, just for PC to TV 1080p viewing, from 20-30mbps videos to 2-3mbps ones. To that end, I run some ffmpeg (latest gyan.dev version at the time) tests comparing same-bitrate encodes between: codecs (x264,x265,VP9,AV1), presets (slow, slower etc)...
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h264_nvenc is able to encode in constant quality, at least from Pascal onwards. I had to do quite some digging around the internet to figure out how to properly use it, but finally found a working formula.
A command like below will record in constant quality, and the CQ value 26 will produce about the same but slightly better quality, measured with VMAF, as ...
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About your other question regarding the -coder option, I was also looking for more info on this.
The current (Dec. 2020) IETF/cellar WG draft "FFV1 Video Coding Format Version 0, 1, and 3" mentions in it's "4.2.3. coder_type" chapter :
Restrictions:
If coder_type is 0, then bits_per_raw_sample SHOULD NOT be > 8.
Background:
At the ...
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