55 lines
1.7 KiB
Bash
Executable File
55 lines
1.7 KiB
Bash
Executable File
#!/usr/bin/env bash
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source "$(dirname "${BASH_SOURCE[0]}")/record-lib.sh"
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GEOMETRY=${GEOMETRY:-1280x720}
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LUA=${LUA:-$HOME/projects/lua}
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OUT="$ROOT/assets/showcase.mp4"
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WORK=$(mktemp -d)
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PROMPT_FILE="$WORK/prompt"
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cp -a "$LUA" "$WORK/lua"
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rm -rf "$WORK/lua/build"
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mkdir -p "$WORK/bin"
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ln -sf "$ROOT/meowc" "$WORK/bin/meowc"
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start_xvfb "$GEOMETRY"
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kitty \
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--config "$HOME/.config/kitty/kitty.conf" \
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-o remember_window_size=no \
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-o "initial_window_width=${GEOMETRY%x*}" \
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-o "initial_window_height=${GEOMETRY#*x}" \
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-o confirm_os_window_close=0 \
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--directory "$WORK/lua" \
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-- bash --noprofile --norc >/dev/null 2>&1 &
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sleep 3
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for _ in $(seq 30); do
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xdotool search --onlyvisible --class kitty >/dev/null 2>&1 && break
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sleep 1
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done
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xdotool search --onlyvisible --class kitty windowactivate >/dev/null 2>&1 || true
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xdotool type --delay 10 -- 'export PS1="lua-5.4.7 $ " PROMPT_COMMAND="printf . >> '"$PROMPT_FILE"'" PATH='"$WORK"'/bin:$PATH; clear'
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xdotool key Return
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sleep 1
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start_capture "$GEOMETRY" "$WORK/showcase.mkv"
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run_line 'meowc build' 1.6
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run_line 'touch src/*.c src/*.h' 0.6
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run_line 'meowc build' 1.8
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run_line 'echo "int lua_added_decl (lua_State *L);" >> src/lua.h' 0.6
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run_line 'meowc build' 2.5
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stop_capture
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# Fit the cut to the target length rather than truncating the ending off it
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LIMIT=${LIMIT:-45}
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raw=$(ffprobe -v error -show_entries format=duration -of csv=p=0 "$WORK/showcase.mkv")
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speed=$(python3 -c "print(max(1.0, $raw / $LIMIT))")
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ffmpeg -v error -y -i "$WORK/showcase.mkv" -an -vf "setpts=PTS/$speed" \
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-c:v libx264 -crf 20 -preset slow -pix_fmt yuv420p -movflags +faststart "$OUT"
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echo "raw ${raw}s, sped up ${speed}x"
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rm -rf "$WORK"
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echo "wrote $OUT"
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