MRAnalyze - Command Line Interface

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MRAnalyzer is a command line tool that compares an original media file with a compressed version of that file to determine the quality of the compression and note any major compression errors.  It supports the traditional PSNR as well as the more accurate SSIM and MS-SSIM.  It is part of the videoQC and Net-X-Code toolsets.  This article contains the Linux/OS-X/Windows command line API for this tool.


MRAnalyzer requires two files: the original, or reference file, and the target, or compressed, file.  It supports PSNR, SSIM and MS-SSIM analysis.  It outputs CSV or SQLite results, along with a DT3D file to allow visual comparison in videoQC.  There is more information on MRAnalyze in general available here:


Basic PSNR Analysis

mranalyze -a <source_ref_file> -b <compressed_file> -p 0

Analyze Part of a Capture

mranalyze -a <source_ref_file> -b <compressed_file> -p 0 -f 1020 -l 1320 -b 15202

Create a CSV Gaussian SSIM Output

mranalyze -a <source_ref_file> -b <compressed_file> -s 1 -o <outputpathfile>.csv

Check Just The I-Frames

 mranalyze -a <source_ref_file> -b <compressed_file> -m 0 -n 30

Command Line Parameters

mranalyze - Video/Audio analysis tool (www.drastic.tv)

Usage:  mranalyze -a <source a> -b <source b> -q -p # -s # -m # -g # -f # -l # -x # -n # [-o <targetfile>]

  • -a <source a>  Original file.
  • -b <source b>  Compressed file.
  • -q  Quiet (no output) must be first argument.
  • -p #  PSNR type
  • -s #  SSIM type (0-Square, 1=Guassian)
  • -m #  MS-SSIM type
  • -g #  Global checks (0-none, 1-basic, 2-advanced)
  • -f #  First frame to check
  • -l #  Last frame to check
  • -x #  B source first frame to check
  • -n #  Next frame distance (def 1 = every frame)
  • -o [targetfile]  Optional, csv output name (or '-o i' to generate the file name)

Optional GUI


The MRAnalyze GUI can be used to create the command line, run the analysis and then display the results.

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