vmafTool function

评估视频质量的VMAF得分，支持windows和linux运行环境。

usage

` $ python main.py rtmp://101.146.101.192/ref/720p rtmp://x01.kkk.com/tz03/8-31

`

test case

case#1: 720p

python main.py rtmp://1.1.1.12/ref/720p rtmp://2.kkk.com/t03/31 Note: video parameters shall be same except bitrate! Reference-video: rtmp://10.146.11.92/ref/720p Video: h264 (Main), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 2560 kb/s, 29.97 fps, 29.97 tbr, 1k tbn Evaluation-video: rtmp://g01.gyzgyy.cn/tz03/8-31 Video: h264 (Main), yuv420p(progressive), 1280x720 [SAR 1:1 DAR 16:9], 409 kb/s, 30.30 fps, 29.97 tbr, 1k tbn VMAF score: 49.821081

case#2: 1080p

python main.py rtmp://1.16.1.92/ref/1080p rtmp://1.kkk.com/t03/32 Note: video parameters shall be same except bitrate! Reference-video: rtmp://10.146.11.92/ref/1080p Video: h264 (Main), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 512 kb/s, 29.97 fps, 29.97 tbr, 1k tbn Evaluation-video: rtmp://g01.gyzgyy.cn/tz03/8-32 Video: h264 (Main), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 1024 kb/s, 30.30 fps, 29.97 tbr, 1k tbn VMAF score: 59.510553