Echo V6

1. Download FFmpegSource
 2. The command line is:
"C:\programs\avisynth\ffms\ffmsindex.exe" "C:\files\001.mkv" -c -k "C:\files\001.ffindex"
3. The keyframe list will be saved to "C:\files\001.ffindex.kf.txt" file
4. Timecodes will will be extracted to "C:\files\001.ffindex.tc.txt" file