#!/usr/bin/env bash
  
  set -euo pipefail
  
  INPUT_DIR="${1:-}"
  TARGET_FPS="${2:-30}"
  
  if [[ -z "$INPUT_DIR" ]]; then
      echo "Usage: $0  [target fps (defaults to 30)]"
      exit 1
  fi
  
  if [[ ! -d "$INPUT_DIR" ]]; then
      echo "Error: directory does not exist: $INPUT_DIR"
      exit 1
  fi
  
  OUTPUT_DIR="$INPUT_DIR/conv"
  mkdir -p "$OUTPUT_DIR"
    
  EXTENSIONS=(
      mp4 avi wmv mpg mpeg mov
      mkv m4v flv webm ts mts m2ts 3gp
  )
  
  shopt -s nullglob nocaseglob
  
  for ext in "${EXTENSIONS[@]}"; do
      for file in "$INPUT_DIR"/*."$ext"; do
          filename="$(basename "$file")"
          name="${filename%.*}"
  
          output="$OUTPUT_DIR/${name}.mov"
  
          echo "Konwersja: $file -> $output"
  
          ffmpeg -y -i "$file" \
              -map 0:v:0 -map "0:a?" \
              -vf "fps=${TARGET_FPS}" \
              -vsync cfr \
              -c:v prores_ks -profile:v 1 \
              -pix_fmt yuv422p \
              -c:a pcm_s16le -ar 48000 \
              "$output"
      done
  done
  
  echo "Results in: $OUTPUT_DIR"

  #!/usr/bin/env bash
  set -euo pipefail
  
  INPUT="${1:-}"
  CRF="${2:-21}"
  PRESET="${3:-slow}"
  
  if [[ -z "$INPUT" ]]; then
      echo "Usage: $0  [crf=21] [preset=slow]"
      exit 1
  fi
  
  if [[ ! -f "$INPUT" ]]; then
      echo "Error: file does not exist: $INPUT"
      exit 1
  fi
  
  DIR="$(dirname "$INPUT")"
  FILE="$(basename "$INPUT")"
  NAME="${FILE%.*}"
  
  OUTPUT="$DIR/${NAME}_h265.mp4"
  
  ffmpeg -y -i "$INPUT" \
    -map 0:v:0 -map '0:a?' \
    -c:v libx265 \
    -preset "$PRESET" \
    -crf "$CRF" \
    -pix_fmt yuv420p \
    -tag:v hvc1 \
    -c:a aac \
    -b:a 192k \
    -movflags +faststart \
    "$OUTPUT"
  
  echo "Ready: $OUTPUT"

Installation still requires workarounds and codecs support is limited, but having that aknowledged and accepted, the application is finally usable!

PS. I don't know where the h264 (and other codes?) limitation come from, since ffmpeg has full support of it. Or is it just business model? Weird.

There are whole guides online how to walk around these issues and even then I could not get the audio working. Somehow it relies on some old ALSA API, which is no longer maintained/supported on Ubuntu/Kubuntu, or I'm just too stupid to make it work. AI assistants could not provide working solution for me either.

I've moved back to Linux a year ago after around 10 years of Windows (and I used to use Linux Slackware for ~15 years beforehand). I am amazed how big progress the KDE made and whole Linux ecosystem. Gaming these days is just as easy as on Windows, which was my primary reason to switch to Windows. My printer just works now. Even music production is excellent on Linux now. There is plenty of great software options to choose from and they just work - as I would expect from the mature ecosystem.

This all feels so good, given how Linux is not pushing trash into my computer (OS-bound spyware/bloatware), has excellent, customizable UI. Full freedom. I do feel that I own my hardware.

Yet I miss DaVinci Resolve. For now I use Kdenlive, which is nice for simple editing, but feels unfinished, or I just don't know how to use it correctly.