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#the tumblr video uploader is up to 10mins now so i do wonder if it could fill that youtube in 2007 niche. the part 1 of 3 tv episode niche
albeckett · 2 years
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i know nobody cares or can tell but meeeeee :3 but i redid all the rainbow room videos on monkeesmvs with the new encoding so they look extra nice :^)
some notes below if you're interested (it's very technical, i would only read if you actually care about video encoding stuff)
my current workflow, partially adapted from here, is:
get our source episode (1080p blu-ray remux)
clip around ~2 minutes of the song i want from the full episode, this is done in ffmpeg. i also overlay the subs in this step and crop out black bars
create avsPmod script that will resize our clip from 1080p to 720p
run this script through avs2yuv and a shit ton of x264 flags. this produces a 720p mp4 that's nicely encoded, but has no audio
use ffmpeg again to combine the audio from the source clip in step 2 and the encoded video from step 4
upload to tumblr :)
stuff that could be improved:
i could probably use avspmod to do everything in step 2 and cut out ffmpeg entirely? i'm just not super good with avs scripting
ALL OF STEP 4 😭 i still don't have an "ideal" set of x264 flags. literally what i did was download an already encoded video from tumblr, then opened it in mediainfo to see what flags THEIR encoder used. like i wanna learn x264 flags in general (i know the big stuff like bframes) but i just don't have timeeeee
related to the above step - determine if quality gain mostly stems from resizing 1080p>720p, or if x264 flags actually contribute. i just like to know this stuff. it's really interesting to learn that uploading a video is a two-step process -- 1 is actually uploading to the tumblr servers, 2 is tumblr running the uploaded video through their encoder before giving you the video that is actually shown in posts (this is that "video processing" message you get)
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