On 12/12/20 12:57 pm, home user wrote:
On 12/11/20 2:49 PM, Cameron Simpson wrote:
Note that VLC isn't your only choice. I use mpv a lot myself.
dnf isn't finding mpv.
youtube-dl looks for a config in ~/.config/youtube-dl/config.
Mine says:
--cache-dir '~/.cache/youtube-dl'
--add-metadata
--xattrs
--no-mtime
-o
'%(title)s--%(uploader)s@youtube--%(upload_date)s--%(resolution)s--id=%(id)s.%(ext)s'
-f 'bestvideo[ext=mp4]+bestaudio/best[ext=mp4]/best'
A config file looks like a good idea. I'll come back to this after
I've got the basics down pat.
The -f option is what you want for control. It doesn't always seem to do
what I want, but that is the section of the manual you want.
That helped.
I tried "-f bestvideo+bestaudio", but it complained it couldn't merge
the two parts. I had to install ffmpeg. Then "-f
bestvideo+bestaudio" worked.
I don't know if the "original" format is a knowable thing, I just
presume youtube itself doesn't upscale and that therefore the highest
res should be the original.
I'm not sure of that. I've viewed some youtube videos where the
highest resolution available appeared slightly, subtly worse that the
next highest. This hints to me that youtube will extrapolate the
original up one step to provide a bigger picture. But anything more
results in too much quality loss. Makes sense. If I had a
camcorder that recorded 144p (256x144), 30 fps, and try to display
that as 4k, 60fps, I anticipate I'd see serious pixelization.
Maybe, maybe not. I've been busy converted videos I've downloaded to 4k
using a couple of video converters under windows and Linux, and one of
the windows converters suggests not doing the conversions as the
conversion will just increase the file size, and that these days the
devices the videos are playing on do a better job at up scaling the
video than what the converters can do anyway. The other thing you need
to consider is how you are playing the videos. I have my videos stored
on a network device because my 4k TV can play the H264 or H265 videos
directly off the network drive, but as I have an AX protocol router
providing my wifi, the TV cannot play the 4k 60 fps videos properly
because the wifi struggles to provide enough bandwidth (I think a 1.3
GHz AC router would be better) but if I use the Ethernet over the home
electrical wire capability that I have the TV seems to be able to play
the videos quite happily, the same also applies to my computer.
regards,
Steve
Thanks,
Bill.
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