Fail conversion with non integer atempo speed multiplayer.
Free all in one audio/video ffmpeg batch encoder
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When using a non-integer atempo speed value (e.g.: 0.5, 1.0, 1.5, 2.0), the "Total progress" bar immediately fills to 100%, "Open on completions" folder, but file status remains at 0.0%.
You can see that the output file size increases to the expected size, but you can't opened it later.
Pass test with "Try preset / on console".
Works fine if you use int 2 instead of 2.0 for 200%.
No problems when converting manually with command line and 1.5 speed instead of program.
Parameters:
-map 0:v:0 -map 0:a:0 -vf "setpts=PTS/1.5,fps=30,scale=w=640:h=360:force_original_aspect_ratio=decrease" -af "atempo=1.5" -c:v h264_nvenc -rc vbr_hq -qmin 0 -cq 34 -c:a aac -vbr 1
Program doesn't send full and correct line prams, there is problem with some other filter values and -filter_complex syntax.
adding single quotation marks
' '
around value may help in some cases.p.s. 3.2.2 still has that problem
Thanks, apologize for the delay, I'll look into it.
I've used these parameters in application and could not reproduce the issue, it worked fine
Either with single quotation marks or without.
Last edit: Abel 2025-05-21