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Forum: New and alternative video codecs 24th April 2022, 23:43
Replies: 65
Views: 25,691
Posted By poisondeathray
I think it's because of the old avs demuxer,...

I think it's because of the old avs demuxer, where pixel formats such as yuv422p10 were not supported...I would think it should be possible to update it...

Or if you use avs to raw pipe, or ffmpeg...
Forum: New and alternative video codecs 23rd April 2022, 20:25
Replies: 65
Views: 25,691
Posted By poisondeathray
Not sure, I used an old r3000 x264 tmod binary...

Not sure, I used an old r3000 x264 tmod binary by jpdsr
https://github.com/jpsdr/x264/releases

I didn't set profile for any of them, they were all "auto". This is what mediainfo said for 3...
Forum: New and alternative video codecs 23rd April 2022, 15:42
Replies: 65
Views: 25,691
Posted By poisondeathray
It does 1920x1080 10bit422 src (709,SDR)...

It does

1920x1080 10bit422 src (709,SDR) test, default settings incl. gop size (lossless outputs verified with psnr)

x264 445Mb/s
aom-av1 447Mb/s (bloody slow. Basically useless)
x265 454Mb/s...
Forum: New and alternative video codecs 10th October 2021, 22:40
Replies: 65
Views: 25,691
Posted By poisondeathray
You can try it , but slower presets are sometimes...

You can try it , but slower presets are sometimes worse for lossless encoding. Don't ask me why, they just are sometimes. There is no way to predict it's source dependent . +/- 0.1% filesize is not...
Forum: New and alternative video codecs 10th October 2021, 21:30
Replies: 65
Views: 25,691
Posted By poisondeathray
HDR is usually going to be at least 10bit 4:2:0 ....

HDR is usually going to be at least 10bit 4:2:0 . Not as many comparison tests for lossless compression HDR scenario

--lossless is the only required switch for x265. The other options can make it...
Forum: New and alternative video codecs 10th October 2021, 20:47
Replies: 65
Views: 25,691
Posted By poisondeathray
For x265 --lossless enables lossless mode....

For x265 --lossless enables lossless mode. Anything else is not lossless .

Slower settings do not always reduce filesze, it depends on content. eg. You can demonstrate cases where "very slow"...
Forum: New and alternative video codecs 10th October 2021, 19:53
Replies: 65
Views: 25,691
Posted By poisondeathray
Then there is some user error somewhere. Such as...

Then there is some user error somewhere. Such as timestamps off or jitter, or not using --lossless switch for x265 (crf 0 is not lossless for x265)


What pixel format ?
What type of content ?
...
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