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| #!/bin/bash | |
| # discordencode - encodes a video file to under 8MiB for Discord | |
| usage () { | |
| echo "Usage: [USEAUDIO=1] [VPRESET=x264-preset] discordencode input output.mp4" | |
| } | |
| if [ -z "$1" ] | |
| then | |
| usage | |
| exit 1 | |
| fi | |
| if [ -z "$2" ] | |
| then | |
| usage | |
| exit 1 | |
| fi | |
| if [ ! -f "$1" ]; then | |
| echo "$1 does not exist" | |
| exit 2 | |
| fi | |
| # Bitrate math functions | |
| # Bc and ffprobe are a bit arcane | |
| duration_seconds () { | |
| ffprobe -i "$1" -show_entries format=duration -v quiet -of csv="p=0" | |
| } | |
| subtract_and_truncate () { | |
| echo "x = $1; scale = 0; x / 1 - $2" | bc -l | |
| } | |
| divide_floats() { | |
| echo "scale=2; $1 / $2" | bc | |
| } | |
| audioargs="-an" | |
| audiobits=0 | |
| if [[ $USEAUDIO ]] && [ "$USEAUDIO" -eq "1" ] | |
| then | |
| audioargs="-c:a aac -b:a 96k" | |
| audiobits=96 | |
| echo "Using 96k aac audio" | |
| fi | |
| if [ -z "$VPRESET" ] | |
| then | |
| VPRESET=veryslow | |
| fi | |
| duration=$(duration_seconds "$1") | |
| echo $1 | |
| echo Duration is $duration | |
| kbits=$(subtract_and_truncate $(divide_floats 60630.8 $duration) $audiobits) | |
| echo Video bitrate is $kbits kb/s | |
| set -x | |
| ffmpeg -y -i "$1" -c:v libx264 -preset $VPRESET -threads 0 -b:v ${kbits}k -pass 1 -an -f mp4 /dev/null | |
| ffmpeg -i "$1" -c:v libx264 -preset $VPRESET -threads 0 -b:v ${kbits}k -pass 2 $audioargs "$2" |
Ok I cannot for the life of me figure out how to enable audio, @xDShot @CallumDev
Ok I cannot for the life of me figure out how to enable audio, @xDShot @CallumDev
Put USEAUDIO=1 env var USEAUDIO=1 ./discordencode.sh in.ext out.mp4
I've made a fork, it adds audio by default.
Put
USEAUDIO=1env varUSEAUDIO=1 ./discordencode.sh in.ext out.mp4I've made a fork, it adds audio by default.
@xDShot thank you so much! especially for replying that fast and forking with audio enabled by default. Me not being able to figure it out just goes to show how inexperienced I am when it comes to bash. But you can bet I will never forget how environment variables work again, so thanks.
Hey guys @N72826 @xDShot this gist has been replaced by this repo: https://github.com/CallumDev/discordencode/
Hey guys @N72826 @xDShot this gist has been replaced by this repo: https://github.com/CallumDev/discordencode/
ah ok. thank you very much guys.
Sometimes output size exceeds 8mb, in such case you can reduce 60630.8 to something lower.