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README.md

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+# OBSReplay
+
+A lightweight OBS script that automatically organizes recordings, replays, and screenshots into folders named after the current scene.
+
+## Features
+- Moves recordings, replays, and screenshots into scene-named directories.
+- Supports optional remuxing of `.mkv` files to `.mp4` using FFmpeg.
+- Customizable output path and FFmpeg executable path.
+
+## Installation
+1. Download the script and place it in your OBS scripts directory.
+2. In OBS, go to **Tools > Scripts**.
+3. Click **+**, select `OBSReplay.lua`, and load it.
+
+## Configuration
+- **Output Path**: The directory where files will be organized.
+- **FFmpeg Path**: Path to the FFmpeg executable (leave blank to use system default).
+- **Remux to MP4**: Converts `.mkv` recordings to `.mp4` after moving.
+
+## Usage
+1. Start recording, replay buffer, or take a screenshot in OBS.
+2. The script automatically moves the file to a folder matching the active scene's name.
+3. If remuxing is enabled, `.mkv` files are converted to `.mp4`.
+
+## Notes
+- Ensure FFmpeg is installed and accessible if using the remux feature.
+- The script creates folders if they don’t exist.
+
+## License
+MIT License

main.lua

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+local output_path = obslua.obs_frontend_get_current_record_output_path()
+local output_path_prop_key = "output_path"
+local remux_to_mp4_prop_key = "remux_to_mp4"
+local ffmpeg_path_prop_key = "ffmpeg_path"
+
+local REPLAY_EVENT = 0
+local RECORDING_EVENT = 1
+local SCREENSHOT_EVENT = 2
+local remux_to_mp4 = false
+local ffmpeg_path = "ffmpeg"
+
+function script_description()
+	return [[
+	<h2>OBSReplay</h2>
+	<p>Moves recordings, replays, and screenshots to a folder named after the current scene.</p>
+	]]
+end
+
+function script_load()
+	obslua.obs_frontend_add_event_callback(obs_frontend_callback)
+end
+
+function obs_frontend_callback(callback, _private_data)
+	if callback == obslua.OBS_FRONTEND_EVENT_REPLAY_BUFFER_SAVED then
+		save(REPLAY_EVENT)
+	elseif callback == obslua.OBS_FRONTEND_EVENT_RECORDING_STOPPED then
+		save(RECORDING_EVENT)
+	elseif callback == obslua.OBS_FRONTEND_EVENT_SCREENSHOT_TAKEN then
+		save(SCREENSHOT_EVENT)
+	end
+end
+
+function script_properties()
+	local prop = obslua.obs_properties_create()
+	obslua.obs_properties_add_path(prop, output_path_prop_key, "Output path:", obslua.OBS_PATH_DIRECTORY, nil, nil)
+	obslua.obs_properties_add_path(prop, ffmpeg_path_prop_key, "FFmpeg Path:", obslua.OBS_PATH_FILE, nil, nil)
+	obslua.obs_properties_add_bool(prop, remux_to_mp4_prop_key, "Remux to MP4")
+	return prop
+end
+
+function script_update(settings)
+	output_path = obslua.obs_data_get_string(settings, output_path_prop_key)
+	remux_to_mp4 = obslua.obs_data_get_bool(settings, remux_to_mp4_prop_key)
+	ffmpeg_path = obslua.obs_data_get_string(settings, ffmpeg_path_prop_key)
+	if ffmpeg_path == "" then ffmpeg_path = "ffmpeg" end
+	print("Updated output path:", output_path)
+	print("Remux to MP4:", remux_to_mp4)
+	print("FFmpeg Path:", ffmpeg_path)
+end
+
+function script_defaults(settings)
+	obslua.obs_data_set_default_string(settings, output_path_prop_key, output_path)
+	obslua.obs_data_set_default_bool(settings, remux_to_mp4_prop_key, false)
+	obslua.obs_data_set_default_string(settings, ffmpeg_path_prop_key, "ffmpeg")
+end
+
+function save(event)
+	local latest_file_path = (event == REPLAY_EVENT and obslua.obs_frontend_get_last_replay())
+		or (event == RECORDING_EVENT and obslua.obs_frontend_get_last_recording())
+		or (event == SCREENSHOT_EVENT and obslua.obs_frontend_get_last_screenshot())
+
+	if latest_file_path and latest_file_path ~= "" then
+		local current_scene_name = get_current_scene_name()
+		local scene_folder_path = output_path .. "/" .. current_scene_name
+
+		os.execute("mkdir -p '" .. scene_folder_path .. "'")
+		os.execute("mv '" .. latest_file_path .. "' '" .. scene_folder_path .. "'")
+
+		if remux_to_mp4 and latest_file_path:match("%.mkv$") then
+			local new_file_path = scene_folder_path .. "/" .. latest_file_path:match("([^/]+)%.mkv$") .. ".mp4"
+			local remux_command = ffmpeg_path .. " -i '" .. scene_folder_path .. "/" .. latest_file_path:match("([^/]+)$") .. "' -c:v copy -c:a copy '" .. new_file_path .. "'"
+			print("Remuxing to MP4:", remux_command)
+			os.execute(remux_command)
+		end
+	else
+		print("No file found to move.")
+	end
+end
+
+function get_current_scene_name()
+	local current_scene = obslua.obs_frontend_get_current_scene()
+	local name = obslua.obs_source_get_name(current_scene)
+	obslua.obs_source_release(current_scene)
+	return name
+end