id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
9299,ffmpeg xfade eating too much memory(killed by kernel),Richard W,,"I am using ffmpeg to concatenate some clips with transitions, but it's using up to 15G memory in my machine and it gets killed by the kernel. there are 15 clips (1080P) and total time around 2.5 minutes.

The exact command I am using is:
 /data/ffmpeg-git-20210611-amd64-static/ffmpeg -i cut_result0.mp4 -i cut_result1.mp4 -i cut_result2.mp4 -i cut_result3.mp4 -i cut_result4.mp4 -i cut_result5.mp4 -i cut_result6.mp4 -i cut_result7.mp4 -i cut_result8.mp4 -i cut_result9.mp4 -i cut_result10.mp4 -i cut_result11.mp4 -i cut_result12.mp4 -i cut_result13.mp4 -i cut_result14.mp4 -filter_complex ""[0:v][1:v]xfade=transition=fadeblack:duration=1.000:offset=8.960[v01];[v01][2:v]xfade=transition=fadeblack:duration=1.000:offset=16.120[v02];[v02][3:v]xfade=transition=fadeblack:duration=1.000:offset=25.760[v03];[v03][4:v]xfade=transition=fadeblack:duration=1.000:offset=34.000[v04];[v04][5:v]xfade=transition=fadeblack:duration=1.000:offset=46.800[v05];[v05][6:v]xfade=transition=fadeblack:duration=1.000:offset=62.440[v06];[v06][7:v]xfade=transition=fadeblack:duration=1.000:offset=70.840[v07];[v07][8:v]xfade=transition=fadeblack:duration=1.000:offset=80.440[v08];[v08][9:v]xfade=transition=fadeblack:duration=1.000:offset=85.360[v09];[v09][10:v]xfade=transition=fadeblack:duration=1.000:offset=114.080[v10];[v10][11:v]xfade=transition=fadeblack:duration=1.000:offset=122.080[v11];[v11][12:v]xfade=transition=fadeblack:duration=1.000:offset=127.400[v12];[v12][13:v]xfade=transition=fadeblack:duration=1.000:offset=132.600[v13];[v13][14:v]xfade=transition=fadeblack:duration=1.000:offset=137.680,format=yuv420p[video];[0:a][1:a]acrossfade=d=1.000:c1=tri:c2=tri[a01];[a01][2:a]acrossfade=d=1.000:c1=tri:c2=tri[a02];[a02][3:a]acrossfade=d=1.000:c1=tri:c2=tri[a03];[a03][4:a]acrossfade=d=1.000:c1=tri:c2=tri[a04];[a04][5:a]acrossfade=d=1.000:c1=tri:c2=tri[a05];[a05][6:a]acrossfade=d=1.000:c1=tri:c2=tri[a06];[a06][7:a]acrossfade=d=1.000:c1=tri:c2=tri[a07];[a07][8:a]acrossfade=d=1.000:c1=tri:c2=tri[a08];[a08][9:a]acrossfade=d=1.000:c1=tri:c2=tri[a09];[a09][10:a]acrossfade=d=1.000:c1=tri:c2=tri[a10];[a10][11:a]acrossfade=d=1.000:c1=tri:c2=tri[a11];[a11][12:a]acrossfade=d=1.000:c1=tri:c2=tri[a12];[a12][13:a]acrossfade=d=1.000:c1=tri:c2=tri[a13];[a13][14:a]acrossfade=d=1.000:c1=tri:c2=tri[audio]"" -map [video] -map [audio] -movflags +faststart my_output.mp4

The full log at https://pastebin.com/AszkJh6E
Please note the full log is a successful one which I ran on a more powerful machine with 100G+ memory.
The original samples are uploaded to office one drive: https://dutaotbsteduau-my.sharepoint.com/:f:/g/personal/i_edu365_site/EoeBxKbg0xBIv2-Ky54dxdEBgw8wUY6ZgEsp2dCNk93LzA?e=tbHyXe
",defect,closed,normal,undetermined,git-master,needs_more_info,xfade,,,,0,0