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+--- Thread: aomenc 2-pass: 2nd pass hangs, named pipe not applied to the main call (dev 2026.11.1 (/thread-4533.html)
aomenc 2-pass: 2nd pass hangs, named pipe not applied to the main call (dev 2026.11.1 - davsed - 13.11.2026
Hybrid dev 2026.11.12.1 (portable), Windows 11 26H2 64bit; same with dev 2026.10.22.1 (installed).
Any aomenc 2-pass job (tested: constrained quality cq 28, and VBR 8000 kbit/s) hangs at the start of the 2nd pass, 0 % CPU.
With vspipe named pipes, the 1st pass main call is adjusted correctly:
aomenc --passes=2 --pass=1 ... -o NUL \\.\pipe\2026-11-12@23_25_01_5210_02_video
In the 2nd pass only the helper call is adjusted, the main call keeps stdin:
helper: vspipe "...\encodingTempSynthSkript_2026-11-12@23_25_01_5210_0.vpy" \\.\pipe\2026-11-12@23_25_01_5210_03_video --outputindex 0 -c y4m --progress
main: aomenc --passes=2 --pass=2 ... --fpf="...\test_new_1_2026-11-12@23_25_01_5210_02.stats" ... -o "...\2026-11-12@23_25_01_5210_03.ivf" -
-> vspipe: "Waiting for client to connect to named pipe..." forever, aomenc waits on stdin.
Steps: load any clip, Video: aomenc, 2pass, add to queue, start.
Debug output (this session only) attached.
RE: aomenc 2-pass: 2nd pass hangs, named pipe not applied to the main call (dev 2026.11.1 - Selur - 13.11.2026
I'll look into it.
RE: aomenc 2-pass: 2nd pass hangs, named pipe not applied to the main call (dev 2026.11.1 - Selur - 13.11.2026
I uploaded a dev version which should fix the problem.
(typo which caused, the parsing of the 2nd pass call to fail.)
Cu Selur