4 title: Video Quality Measurement
11 This performs the PSNR and SSIM video quality measurements by comparing the
12 B frames to the reference frame A.
13 It outputs the numbers to stdout in space-delimited format for easy
15 The bottom half of the B frame is placed below the top half of the A frame
16 for visual comparison.
23 Render a line between top and bottom halves and the values atop the video.