Handle video streams without duration property #23
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This patch should handle real-time video streams where duration property is not set by MPV e.g. RTSP streams from live cameras.
Artturin
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Dec 25, 2025
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Fixes
$ ssh raspi arecord -f cd -t raw -D plughw:1,0 | mpv --demuxer=rawaudio --demuxer-rawaudio-format=s16le --demuxer-rawaudio-channels=2 --demuxer-rawaudio-rate=44100 -
[file] Reading from stdin...
● Audio --aid=1 (pcm_s16le 2ch 44100 Hz)
[autosub] Reactivate external subtitle files:
Track list:
● Audio --aid=1 (pcm_s16le 2ch 44100 Hz)
[autosub]
[autosub] stack traceback:
[autosub] [C]: in function 'tonumber'
[autosub] /home/art/.config/mpv/scripts/autosub.lua:168: in function 'autosub_allowed'
[autosub] /home/art/.config/mpv/scripts/autosub.lua:137: in function 'handler'
[autosub] mp.defaults:522: in function 'call_event_handlers'
[autosub] mp.defaults:564: in function 'dispatch_events'
[autosub] mp.defaults:515: in function <mp.defaults:514>
[autosub] [C]: in ?
[autosub] [C]: in ?
[autosub] Lua error: /home/art/.config/mpv/scripts/autosub.lua:168: bad argument #1 to 'tonumber' (string expected, got nil)
Recording raw data 'stdin' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo
AO: [pipewire] 44100Hz stereo 2ch s16
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This patch should handle real-time video streams where duration
property is not set by MPV e.g. RTSP streams from live cameras.