Software

Audio and video software, mostly using Python:

• ffmpeg-normalize
  A utility for batch-normalizing audio using ffmpeg.
• ffmpeg-quality-metrics
  Calculate quality metrics with FFmpeg (SSIM, PSNR, VMAF)
• bufferer
  A tool to insert fake buffering events into video streams
• ffmpeg-bitrate-stats
  Calculate bitrate statistics with FFmpeg.
• scenecut-extractor
  Extract scenecuts from video files using ffmpeg
• ffmpeg-progress-yield
  Run an ffmpeg command with progress
• siti-tools
  Calculate spatial information (SI) and temporal information (TI)
• ffmpeg-black-split
  Split a video based on black periods
• itu-p1203
  Implementation of the ITU-T Rec. P.1203 audiovisual quality estimation model for HTTP Adaptive Streaming services
• video-fft
  Calculate the magnitude spectrum of a video sequence, via Fast Fourier Transform
• ffmpeg-screen-capture
  Capture the screen with ffmpeg, with some extras

Various other software:

• compress-pptx
  Compress a PPTX file, converting all PNG/TIFF images to lossy JPEGs

Archived / No Longer Maintained

Video:

• active-video-probe
  An Active Video Probe demo for Google Chrome running HTML5 and YouTube video.
• h26x-extractor
  Extracts NAL units from H.264 bitstreams and decodes their type and content
• ffmpeg-debug-qp
  A script debugging QP values from video streams.

Web:

• Online Markdown Editor
  A pure JS/HTML Markdown editor with live preview and syntax highlighting.

Multimedia quality evaluation:

• NappingPlayer for Android
  A video player for Android tablets that allows you to conduct “Napping” experiments for sensory profiling of multimedia content
• SubjectivePlayer for Android
  A video player for Android, supporting Subjective Quality Assessment

Various projects from courses:

• retreval
  A Ruby API for Evaluating Retrieval Results
• mappr
  A Flickr visualization for Google Maps on Android. Written for “Praktikum Anwendungsentwicklung” together with Patrik Hummelbrunner.

Random Scripts

• shuffle-playlist.py
  A script for creating pseudorandom playlists for video quality evaluation.
• xls_to_csv.py
  Convert XLS to CSV files.
• html5-video-presentation
  An HTML website for presenting a set of videos in fullscreen, like PowerPoint.

LaTeX

• LaTeX paper kit
  Slightly modified Springer LNCS template for LaTeX, including a few demonstrations. Written for “PS Grundlagen Wissenschaftlichen Arbeitens”. It also features a small README-file. Should get somebody started with LaTeX easily.