ffmpeg -i input.mp4 -c:v libaom-av1 -crf 30 -b:v 2M -strict experimental -fs 1073741824 output_av1.mp4
: Large files reveal how well your video player handles extended buffering and segment loading.
Before we provide the download links, let’s establish why this specific file size is critical in 2025.
: This site is a dedicated resource for high-speed performance testing. It provides a direct download for a 1GB test file and even a 1.7GB 8K MP4 specifically designed for high-resolution playback and CDN server testing.