Some thumbnails are skipped

[escapezn]

Hello,

At first I found some thumbnails would not appear as cursor hovering over the progress bar. I suspected that 120 thumbnails are too much to be shown so tired 60 but it still behave incorrectly. I also tired toggling ffmpeg to mpv, and accurate_seek option, but all turned out the same. This is confusing and there maybe something wrong with the script, please have a look at it.

video1, 120 thumbnails https://user-images.githubusercontent.com/30799958/162909156-72e9d6c0-47ec-4b71-a100-d0789a89ca93.mp4

video1, 60 thumbnails https://user-images.githubusercontent.com/30799958/162912721-ebc0ec9e-fab0-4f03-8f4e-c55c379e358e.mp4

video2, 60 thumbnails, accurate_seek=yes https://user-images.githubusercontent.com/30799958/162913577-b074c733-5e72-4a4b-b2f1-96de58878698.mp4

[deus0ww]

If this is running on a slow machine, try upping worker_timeout.

[escapezn]

worker_timeout=0 is configured and it didn't help. The output in console is normal even if worker_timeout is in default value.

[Thumbnailer] Worker Finished (uncounted): Thumbnailer_Worker {"queued":40,"success":40,"failed":0,"name":"Thumbnailer_Worker","existing":0}
AV: 00:00:22 / 00:24:09 (2%) A-V:  0.000
[Thumbnailer] Worker Finished (uncounted): Thumbnailer_Worker3 {"queued":40,"success":40,"failed":0,"name":"Thumbnailer_Worker3","existing":0}
AV: 00:00:22 / 00:24:09 (2%) A-V:  0.000
[Thumbnailer] Worker Finished (uncounted): Thumbnailer_Worker2 {"queued":39,"success":39,"failed":0,"name":"Thumbnailer_Worker2","existing":0}

[escapezn]

0=No Timeout (Linux or Mac w/ coreutils installed only)

Sorry I ignored this.

Unfortunately a considerable value like 50 didn't make sense, either.

[deus0ww]

Can you post the full mpv log?

Additionally, I would be helpful if you can add this to your input.conf: KEY script-message Thumbnailer-debug. Press KEY before saving the log file.

[escapezn]

mpv.log

[escapezn]

BTW, this is config of thumbnail script.

#  MPV - thumbnailer.conf
#  deus0ww - 2021-05-27

# General
auto_gen=no
auto_show=no
auto_delete=2
start_delay=0

# Paths
# cache_dir=/Users/Shared/Library/Caches/mpv/thumbnails
# worker_script_path=$MPV_HOME\scripts

# Thumbnail
dimension=400
# thumbnail_count=150
min_delta=5
max_delta=90
remote_delta_factor=1
#stream_delta_factor=2
bitrate_delta_factor=1
#bitrate_threshold=8

# OSC
#spacer=2
show_progress=2
#centered=yes
#update_time=0.25

# Worker
# max_workers=4
worker_remote_factor=1
#worker_bitrate_factor=1
#worker_delay=1
# worker_timeout=50
#accurate_seek=yes
use_ffmpeg=yes
prefer_ffmpeg=yes
#ffmpeg_threads=1
ffmpeg_scaler=fast_bilinear

[deus0ww]

Can you try running the debug function after the thumbnail generation is done and post the log again?

[escapezn]

mpv1.log

[deus0ww]

The is really perplexing... there doesn't seem to be anything wrong...