Opened 3 years ago
Closed 3 years ago
#9592 closed defect (needs_more_info)
using -filter-complex to concatenate .mp4 hangs
| Reported by: | Jeffrey Wilson | Owned by: | |
|---|---|---|---|
| Priority: | important | Component: | ffmpeg |
| Version: | 4.4.3 | Keywords: | |
| Cc: | Jeffrey Wilson | Blocked By: | |
| Blocking: | Reproduced by developer: | no | |
| Analyzed by developer: | no |
Description
Summary of the bug: using -filter-complex to concatenate .mp4 hangs and uses much CPU.
How to reproduce: Using the files contained in the .zip file, run:
ffmpeg.exe -i IntermediateTimelineRender_.mp4 -i IntermediateTimelineRender_0.mp4 -i IntermediateTimelineRender_1.mp4 -filter_complex "[0:v:0][1:v:0][2:v:0]concat=n=3:v=1[v]" -map "[v]" -q:v 8 IntermediateTimelineRender.mp4
Change History (3)
comment:1 by , 3 years ago
comment:2 by , 3 years ago
Additional information - if I omit IntermediateTimelineRender_0.mp4 then the concat works. IntermediateTimelineRender_0.mp4 is a 10 second video created from an .jpg image using ffmpeg command:
ffmpeg.exe -loop 1 -i "image.jpg" -t 10 -vf scale=1920:1080:force_original_aspect_ratio=decrease,pad=1920:1080:(ow-iw)/2:(oh-ih)/2,setsar=sar=1/1 -c:v libx264 -pix_fmt yuv420p "IntermediateTimelineRender_0.mp4"
comment:3 by , 3 years ago
| Resolution: | → needs_more_info |
|---|---|
| Status: | new → closed |
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