Video Bitrate and Quality Analyzer

Video Bitrate and Quality Analyzer is a desktop video encoding bitrate calculator,
per-GOP packet and frame-type distribution inspector, and frame-by-frame PSNR and SSIM
visual quality comparator for Linux.
An independent Linux alternative inspired by desktop video transcoding and bitrate
planning suites, it combines storage budget calculation with real bitstream packet
demuxing and full-reference objective quality metrics.

Key Features:
- Target-Size Bitrate & Bits-Per-Pixel (BPP) Planner: Computes exact target video
bitrates from duration, target file size (MB/GB presets), audio track count and codec
rates, and container muxing overhead (MP4, MKV, WebM, MPEG-TS) alongside multi-resolution
BPP density ratings and two-pass encoding commands.
- Per-GOP Bitrate Spikes & I/P/B Frame Distribution: Demuxes and inspects real video
streams to measure compressed byte size per frame, keyframe intervals, per-GOP bitrate
peaks, Peak-to-Average ratio, and I/P/B picture-type byte shares.
- Frame-by-Frame PSNR & SSIM Quality Comparator: Evaluates encoded video variants against
a reference source stream to report average, minimum, and maximum PSNR (dB) and SSIM
(0..1) scores, interactive quality curves, and worst-frame visual inspection.
- Test Variant Encoding & Structured Reports: Encodes target-bitrate test variants and
exports complete per-GOP and per-frame quality telemetry to JSON and CSV files.

Disclaimer: This project is an independent open-source tool and is not affiliated with, sponsored by, or endorsed by the MeGUI project or its contributors.