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Old 12th March 2019, 16:11   #1  |  Link
mzso
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x264vfw issues, some CLI options and log doesn't work

Hi!

I've been trying to encode videos with x264vfw (is this official?), but I got some problems.
I added these (that I used a while ago with the CLI encoder) to the command line:
Code:
 --input-range PC --output-csp i444 --range PC --colormatrix bt709 --colorprim bt709 --transfer bt709
But it doesn't work as expected. input/output range options result encoding at all.
If I take them out I get a green video. After I remove the colormatrix option I get proper video. I wonder why these don't work.

The log option seems useless. I get a flickering blank window, which disappears after encoding is finished. Weird...

Last edited by mzso; 12th March 2019 at 18:52.
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Old 12th March 2019, 18:46   #2  |  Link
Blue_MiSfit
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Do try to move away from VFW

You're using hacky, deprecated, 27 year old technology.
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Old 12th March 2019, 19:02   #3  |  Link
mzso
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Quote:
Originally Posted by Blue_MiSfit View Post
Do try to move away from VFW :)

You're using hacky, deprecated, 27 year old technology.
Aw. Just when I edited the forum (which was empty) you posted in parallel. ☺

Anyway. Since the only decent (free) screen recorder software (MSI afterburner) only supports VFM codecs I see little choice.

So if you can recommend a good free screencasting program. I could let VFM codecs go. ☺

FFmpeg seems pretty useless for screen recording. Causes framedrops and stutter/framedrops during recording.
It also seems pretty slow for full range videos (unreasonably so, for example x264vfm together with the app that it record uses less cpu then ffmpeg alone with the same settings...) and produces a garbage output unless I use "-vf scale=out_color_matrix=bt709:out_range=pc" which seems to make the encoding even slower.
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Old 21st March 2019, 06:56   #4  |  Link
Blue_MiSfit
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I'm sure you can get ffmpeg working well with screen recording, but take a page from the gamers and use OBS. It's what I use when I need to screen cap!
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