Thumbnailing command failed & Command 'escape-ass' not found

[SingleRottenChips]

Description of the bug
Thumbnailing command failed & Command 'escape-ass' not found

To Reproduce

1. Ran mpv up.mp4
2. See error:

[mpv_thumbnail_script_server] Thumbnailing command failed!
[mpv_thumbnail_script_server] mpv process error: nil
[mpv_thumbnail_script_server] Process stdout: nil
[mpv_thumbnail_script_server] Debug log: /tmp/mpv_thumbs_cache/up-520584567/000063.bgra.log
[mpv_thumbnail_script_server] Output file missing! /tmp/mpv_thumbs_cache/up-520584567/000063.bgra
[mpv_thumbnail_script_client_osc] Command 'escape-ass' not found.

Expected behavior
The video is thumbnailed.

Debug log

Log

mpv --msg-level=mpv_thumbnail_script_server=debug,mpv_thumbnail_script_client_osc=debug,ytdl_hook=debug up.mp4
[ytdl_hook] Loading lua script @ytdl_hook.lua...
[ytdl_hook] loading mp.defaults
[ytdl_hook] loading @ytdl_hook.lua
[ytdl_hook] reading options for ytdl_hook 
[ytdl_hook] script-opts/ytdl_hook.conf not found. 
[ytdl_hook] lua-settings/ytdl_hook.conf not found. 
[mpv_thumbnail_script_client_osc] Loading lua script /Users/lochips/.config/mpv/scripts/mpv_thumbnail_script_client_osc.lua...
[mpv_thumbnail_script_server] Loading lua script /Users/lochips/.config/mpv/scripts/mpv_thumbnail_script_server.lua...
[mpv_thumbnail_script_client_osc] loading mp.defaults
[mpv_thumbnail_script_server] loading mp.defaults
[mpv_thumbnail_script_client_osc] loading file /Users/lochips/.config/mpv/scripts/mpv_thumbnail_script_client_osc.lua
[mpv_thumbnail_script_server] loading file /Users/lochips/.config/mpv/scripts/mpv_thumbnail_script_server.lua
[mpv_thumbnail_script_server] reading options for mpv_thumbnail_script 
[mpv_thumbnail_script_server] Opened config file script-opts/mpv_thumbnail_script.conf. 
[mpv_thumbnail_script_client_osc] reading options for mpv_thumbnail_script 
[mpv_thumbnail_script_client_osc] Opened config file script-opts/mpv_thumbnail_script.conf. 
[mpv_thumbnail_script_client_osc] reading options for osc 
[mpv_thumbnail_script_client_osc] script-opts/osc.conf not found. 
[mpv_thumbnail_script_client_osc] lua-settings/osc.conf not found. 
[ytdl_hook] ytdl:// hook 
[ytdl_hook] not a ytdl:// url 
[ytdl_hook] playlist hook 
[mpv_thumbnail_script_client_osc] osc_init 
[mpv_thumbnail_script_client_osc] osc_init 
 (+) Video --vid=1 (*) (h264 1920x1080 59.985fps)
 (+) Audio --aid=1 (*) (aac 2ch 48000Hz)
[mpv_thumbnail_script_server] Announcing self to master... 
Using hardware decoding (videotoolbox).
[mpv_thumbnail_script_server] Announcing self to master... 
AO: [coreaudio] 48000Hz stereo 2ch floatp
[mpv_thumbnail_script_server] Announcing self to master... 
VO: [libmpv] 1920x1080 videotoolbox[nv12]
[mpv_thumbnail_script_client_osc] Registered worker mpv_thumbnail_script_server 
[mpv_thumbnail_script_client_osc] Gathering video/thumbnail state 
[mpv_thumbnail_script_server] Successfully registered with master 
[mpv_thumbnail_script_client_osc] Thumbnailer.state: {"finished_thumbnails" = 0, "thumbnail_delta" = 5, "thumbnail_template" = "/tmp/mpv_thumbs_cache/up-520584567/%06d.bgra", "thumbnail_directory" = "/tmp/mpv_thumbs_cache/up-520584567", "worker_extra" = {}, "available" = true, "thumbnail_count" = 102, "thumbnail_size" = {"w" = 300, "h" = 168}, "thumbnails" = {-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1}, "ready" = true} 
[mpv_thumbnail_script_client_osc] Creating thumbnail directory /tmp/mpv_thumbs_cache/up-520584567 
[mpv_thumbnail_script_client_osc] Splitting 102 thumbnails amongst 1 worker(s) 
[mpv_thumbnail_script_client_osc] Giving workers state: {"enabled":true,"finished_thumbnails":0,"worker_input_path":"up.mp4","thumbnail_delta":5,"thumbnail_template":"/tmp/mpv_thumbs_cache/up-520584567/%06d.bgra","thumbnail_directory":"/tmp/mpv_thumbs_cache/up-520584567","worker_extra":[],"available":true,"thumbnail_count":102,"thumbnail_size":{"w":300,"h":168},"thumbnails":[-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1],"ready":true} 
[mpv_thumbnail_script_client_osc] Assigning job to mpv_thumbnail_script_server [64,32,96,16,48,80,8,24,40,56,72,88,4,12,20,28,36,44,52,60,68,76,84,92,100,2,6,10,14,18,22,26,30,34,38,42,46,50,54,58,62,66,70,74,78,82,86,90,94,98,102,1,3,5,7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87,89,91,93,95,97,99,101] 
[mpv_thumbnail_script_client_osc] osc_init 
[mpv_thumbnail_script_server] Handling given job 
[mpv_thumbnail_script_server] Generating 102 thumbnails @ 300x168 for "up.mp4" 
[mpv_thumbnail_script_server] Starting work on thumbnail 63 
[mpv_thumbnail_script_server] Thumbnailing command failed! 
[mpv_thumbnail_script_server] mpv process error: nil 
[mpv_thumbnail_script_server] Process stdout: nil 
[mpv_thumbnail_script_server] Debug log: /tmp/mpv_thumbs_cache/up-520584567/000063.bgra.log 
[mpv_thumbnail_script_server] Output file missing! /tmp/mpv_thumbs_cache/up-520584567/000063.bgra 
[mpv_thumbnail_script_server] Changing files, subprocess killed 
[mpv_thumbnail_script_client_osc] osc_init 
[mpv_thumbnail_script_client_osc] Command 'escape-ass' not found.
[mpv_thumbnail_script_client_osc] Command 'escape-ass' not found.
[mpv_thumbnail_script_client_osc] Command 'escape-ass' not found.

Environment

• OS: MacOS
• mpv version: 0.37.0
• mpv_thumbnail_script version: 0.4.8
• other scripts or special config that might be relevant: SmartCopyPaste

Additional context
None.

[qqap]

I'm also facing this problem on macOS. I found https://github.com/iina/iina which is an open-source cocoa wrapper on mpv with thumbnail previews built-in, so others might find it useful to use while this issue gets resolved.