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vt-enc: FFmpeg VideoToolbox frontend in Bash (github.com)

submitted 3 months ago by gianni@lemmy.ml to c/programming@programming.dev

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cross-posted from: https://lemmy.ml/post/19003650

vt-enc is a bash script that simplifies the process of encoding videos with FFmpeg using Apple's VideoToolbox framework on macOS. It provides an easy-to-use command-line interface for encoding videos with various options, including codec selection, quality settings, and scaling.

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[–] thingsiplay@beehaw.org 3 points 3 months ago* (last edited 3 months ago) (2 children)

I don't use VideoToolbox or Mac, so won't test it. But looking at the script, it looks clean and nice Bash scripting. I like it. Nothing serious but one thing I would suggest is for just a little bit easier and cleaner look in the code, to use cat with EOF for the help, like in one of my scripts:

help_options() {
	cat %%EOF
options:
  -h                show help and exit
  -H                show all options, notes and exit
  -m HEIGHT         max height
  ... (and more)
EOF
}

Edit: I forgot that beehaw does not like the character for < and will destroy everything. So I changed them to %%, just replace it with the less than character, the opposite of >.

Another Edit: In your build sh script, I like you hardcode rm -rf ffmpeg_vt, and don't use a variable for. And also checking if its a directory and exit if it can't cd into cd ffmpeg_vt/ || exit 1 . Well done.

[–] gianni@lemmy.ml 2 points 3 months ago* (last edited 3 months ago) (1 children)

Thanks for the helpful advice! Shellcheck is the best :)

Edit: How do I get the ANSI escape colors to appear with the cat << EOF syntax?

[–] thingsiplay@beehaw.org 1 points 3 months ago* (last edited 3 months ago)

Within cat EOF syntax you can just use variables and commands as well. Just tested it and I see the problem here. The EOF syntax will not interpret the backslash and print them literally. So those variables would require to be interpreted with echo -e first. I never used colors in this syntax before. It's up to you which syntax you prefer, some people still like the series of echos over cat EOF.

BOLD='\033[1m'
RESET='\033[0m'
BOLD=$(echo -e "${BOLD}")
RESET=$(echo -e "${RESET}")

help_options() {
  cat %%EOF
options:
  -h ${BOLD}show help and exit${RESET}

  $(date "+%Y-%m-%d")
EOF
}

help_options