/otomad/ - OtoMADs and YTPMVs

>>558

if you don't mind me asking, what were the ffmpeg flags on this one (assuming ffmpeg was used)? I really struggle to retain acceptable video quality on longer videos.

>>559

Hmm, I think it's mostly because I do a 2-pass by adding "-pass 1 -f null NUL", render it and then changing it to "-pass 2 -f webm kill.webm"

Also the original was in 60 fps, but I wanted to preserve a little bit more quality so I chose to cut it down to 50 fps.

So everything looked something like this:

ffmpeg -i kill.mkv -metadata title="Please Kill My Love" -r 50 -c:v libvpx -crf 24 -b:v 420k -vf scale=-1:360 -c:a libvorbis -q:a 1 -pass 1 -f null -y NUL

ffmpeg -i kill.mkv -metadata title="Please Kill My Love" -r 50 -c:v libvpx -crf 24 -b:v 420k -vf scale=-1:360 -c:a libvorbis -q:a 1 -pass 2 -f webm -y kill.webm

I'm not very good at ffmpeg so there might be some things in that code which are meaningless, but it works so I'm not complaining.

>>559

>>563

With 2-pass the file size/bitrate heavily depends on how active the video is (ex.: rapid changing colors/scenes will require bigger bitrate than ones that have a lot of static space).

>>563

Would you mind explaining "-crf 24", "-vf scale=-1:360", and "-q:a 1"?

Documentation isn't helping me much.

>>565

>"-crf 24"

This page explains it quite well.

http://slhck.info/articles/crf

>"-vf scale=-1:360"

Scales the video, simple as that.

https://trac.ffmpeg.org/wiki/Scaling%20%28resizing%29%20with%20ffmpeg

>"-q:a 1"

Sets audio quality. Range is 0–10.

I don't remember what kind of bitrate the numbers correspond to though. From my experience if you want to focus on audio quality 1-3 is good enough, if not - go for a zero.

Unfortunately, the power supply on my old computer seems to have died. I'm going to be limited to embeds for the time being until I can recover all of my old files and bookmarks.

can finally fucking post again. Hopefully I didn't lose my hard drive but even if I did, most of the better otomads have been posted on this board, so not all would be lost.

>>859

as an update, the data is all fine, but it'll be a bit before I'm not limited to posting embeds.

Does anyone read these messages?

looks like the embed for this one was removed

another superior chinese ytpmv

sorry for doing three embeds in a row. I was going to upload the mp4 of this one since the original filesize was fairly small, but for whatever reason my mp4s had a significant reduction in audio quality. The audio bitrate was the same in each mp4, so I don't really know why.

For anyone who's interested, I have a thread up on freech: https://freech.net/fam/res/32210.html

I'll be posting many things that I haven't posted before because the board has a higher maximum file size.