SteamRecordingsExporter

Tool to recover semi-corrupted Steam recordings and export Steam recordings without the Steam client.

Table of Contents

• Features
• Requirements
• Installing
• Usage
• Credits

Features

• Join DASH m4s initialization and media segments into per-representation stream files.
• Merge joined streams into a single MP4 using ffmpeg (stream copy — no re-encoding).
• Optionally remove processed chunk files to save disk space (--compact).
• Robust parsing of session.mpd to detect representation templates and segment filenames.

Requirements

• Python 3.9+
• System ffmpeg binary available on PATH.

Installing

You can get pre-compiled build for Windows, MacOS and Linux from Releases, these builds

Or install from source or via pip. Example using pip (recommended to use a virtualenv or pipx/uv):

pip install .
# or, using pipx for an isolated CLI install:
pipx install .
# or, using uv
uv tool install .

If you prefer installing directly from a remote Git repository, replace the source with your repository URL:

# using pipx
pipx install git+https://github.com/GrzybDev/SteamRecordingsExporter.git
# using uv
uv tool install git+https://github.com/GrzybDev/SteamRecordingsExporter.git

Usage

steamrecordingsexporter --help

The tool expects an input directory containing DASH segment files and a session.mpd file describing representations.

• By default the tool will join representation segments, then merge them with ffmpeg into a single MP4 file using stream copy.
• If output_file is omitted the resulting file will be named <clip-folder-name>.mp4 and saved to the current working directory.

Example:

# Export a clip folder to default output name
steamrecordingsexporter path/to/clip_folder

# Export and write to a specific file
steamrecordingsexporter path/to/clip_folder output.mp4

# Export and remove chunks as they are processed
steamrecordingsexporter path/to/clip_folder --compact

CLI arguments and options

Parameter	Description	Default / notes
input_dir	Path to clip folder containing session.mpd and segment (.m4s) files	required
output_file	Output file path or directory where the exported media will be saved	if directory given, saved as <input_dir.name>.mp4; if omitted saved as <input_dir.name>.mp4 in CWD
--compact	Remove processed chunk files immediately to save disk space	False

Notes

• The tool reads session.mpd, extracts representation initialization and media templates, resolves segment filenames and concatenates them in order.
• Merging is performed with ffmpeg via the Python python-ffmpeg wrapper and uses stream copy (-c copy) to avoid re-encoding.

Credits

• GrzybDev

Special thanks:

• Authors and maintainers of FFmpeg and the MPEG-DASH specification for the underlying technologies.
• Valve for creating such an amazing feature!