Nothing happen after Started encode

[ChaosPaladin]

mpv version and platform

Windows 8.1 x64

[   0.011][v][cplayer] mpv 0.29.0-343-gc379950ce0 Copyright © 2000-2019 mpv/MPlayer/mplayer2 projects
[   0.011][v][cplayer]  built on Sun Jul  7 10:37:01 +08 2019
[   0.011][v][cplayer] ffmpeg library versions:
[   0.011][v][cplayer]    libavutil       56.30.100
[   0.011][v][cplayer]    libavcodec      58.53.101
[   0.011][v][cplayer]    libavformat     58.28.101
[   0.011][v][cplayer]    libswscale      5.4.101
[   0.011][v][cplayer]    libavfilter     7.56.100
[   0.011][v][cplayer]    libswresample   3.4.100
[   0.011][v][cplayer] ffmpeg version: git-2019-07-06-b7b6ddd5

Description

When i'm trying make webm, i.e pressing W, then 1, 2, and e, i'm see Started encode, but after some time, nothing happen and file not created.

Log file

https://gist.github.com/ChaosPaladin/f4edbcce8b50b919c2916021ad07b500

[ekisu]

Is the video a livestream? The script doesn't work for livestreams atm.

[ChaosPaladin]

Yes, i'm trying use it with livestream and with record of livestream m3u8 (HLS). Same problem for both.

[ekisu]

Is the link on the attached log the record of the livestream? If so, I might see if there's a way to record it.

[ChaosPaladin]

I use this tool to watch livestreams and records of theys: https://github.com/SoMuchForSubtlety/F1viewer/releases