FFMpeg Fashion Show [GLITCHET EDITION]

[Pandela]

Show off your latest ffmpeg findings or useful commands; solely ffmpeg glitches are encouraged ;3

EXAMPLE:
Abuse Scale Filter; Colorspace Glitch

ffmpeg -i input.avi -vcodec mjpeg -q:v 0 -f avi -acodec libmp3lame -vf scale=1280x720:dst_format=rgb8 - | ffmpeg -i - -lavfi "[0:v]format=gbrp12le,scale=1280x721:dst_format=gbrp12be,scale=src_format=gbrp12le,scale=1280x720,setsar=1/1[out]" -map "[out]" -f avi -vcodec ffvhuff -q:v 0 - | ffplay -

URL To the Facebook Thread

[Pandela]

Use video filters to databend audio codecs/data

ffmpeg -i input.wav -acodec wmav1 -ac 2 -f avi - | ffmpeg -f rawvideo -pix_fmt rgb24 -s 500x10 -i - -f rawvideo -loglevel debug -lavfi "[0:v]trim=start=0:duration=0.1[a];[0:v]trim=start=0.1:duration=0,setpts=PTS-STARTPTS[b];[b]vflip,random=frames=200:seed=100[c];[a][c]concat[out]" -map "[out]" -s 500x10 -pix_fmt rgb24 - | ffplay -f avi -acodec wmav1 - -af volume=0.2

[Pandela]

Fun Sine Wave to Video stuff

ffmpeg -f lavfi -i "sine=frequency=50.1:sample_rate=44100:duration=100000" -f lavfi -i "sine=frequency=100:sample_rate=44100:duration=100000" -filter_complex "[0:a][1:a]amix" -f s8 -acodec pcm_s8 -ar 23040000 - | ffplay -f rawvideo -s 640x360 -pix_fmt gbrap -

[Pandela]

Sine Wave to Compressed Video decoder

ffmpeg -f lavfi -i sine=f=50.0001:d=0:r=8000 -f lavfi -i sine=f=50.02:d=0:r=8000 -filter_complex [0:a][1:a]amix[meme] -f u8 -c:a pcm_u16le -ar 24001 -ac 1 -map "[meme]" - | ffplay -f rawvideo -pix_fmt rgb555le -s 640x360 -vcodec msvideo1 -

[v3d]

Glitch any format using the noise bitstream filter (-bsf noise={N}). This filter is used to test codecs for stream error tolerance. https://ffmpeg.org/ffmpeg-bitstream-filters.html#noise

Courtesy of Rob Mac and his awesome work on Blue x80 2018.

The fun part is you can drop livestreams into it and have heaps of fun.

Here's some RedBull TV =D

ffmpeg -i http://dms.redbull.tv/v3/linear-borb/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjYXRlZ29yeSI6InBlcnNvbmFsX2NvbXB1dGVyIiwiY291bnRyeV9jb2RlIjoidXMiLCJleHBpcmVzIjoiMjAxNy0wOS0xNlQxNzo0NjowMy45NjM0NjI4NDJaIiwib3NfZmFtaWx5IjoiaHR0cCIsInJlbW90ZV9pcCI6IjEwLjE1Ny4xMTIuMTQ4IiwidWEiOiJNb3ppbGxhLzUuMCAoTWFjaW50b3NoOyBJbnRlbCBNYWMgT1MgWCAxMF8xMl81KSBBcHBsZVdlYktpdC82MDMuMi40IChLSFRNTCwgbGlrZSBHZWNrbykgVmVyc2lvbi8xMC4xLjEgU2FmYXJpLzYwMy4yLjQiLCJ1aWQiOiJkOGZiZWYzMC0yZDhhLTQwYTUtOGNjNy0wNzgxNGJhMTliNzMifQ.Q_38FNpW3so5yrA5FQt9qBuix3dTulKpb6uQ0dRjrtY/playlist.m3u8 -c:v copy -c:a copy -bsf noise=6500 -f avi - | ffplay -

Obviously I just copied the streams but you can do anything. Each codec reacts to different noise amounts differently - 1 means each byte is noise and the higher you go the less glitch you get. You can even mess up every pixel in a raw video.

[v3d]

Count frames with ffplay

ffplay {input.ext} -vf "drawtext=fontfile=Arial.ttf: text=%{n}: x=(w-tw)/2: y=h-(2*lh): fontcolor=white: box=1: boxcolor=0x00000099: fontsize=200"

[ebi]

Sorry for being offtopic, but have you gotten CAVS to work in ffmpeg?
I'm on windows and tried ffmpeg version 4.1 as well as nighly build but i get unknown encoder 'cavs' when i try the the line ffmpeg -i input.avi -c:v cavs -g 0 output.avi posted in the facebook thread

[Pandela]

You just gotta find the right FFmpeg binary with CAVS enabled, I believe this one has CAVS. It's also compiled with the fancy NDI output so you can send video data to a virtual camera device via NewTek NDI Virtual Input:

https://drive.google.com/file/d/1MhtCV9VmVXMziulUwm3yQ2Q1EkwB7jOo/view