[FFmpeg-user] ppsrc=1 decimation doesn't work or isn't correct or throws exception

[Mark Filipak (ffmpeg)]

Win10-1803.

The sources & fault documentaion files are here: To be determined -- trac.ffmpeg.org rejects it, too 
big (2,847,812 bytes) -- got any suggestions?


RUNME.CMD : ffmpeg -i preprocessed.mkv -i source.mkv -filter_complex "decimate='ppsrc=1'" target.mkv -y

I ran RUNME.CMD 40 times.

33 times, RUNME.CMD didn't do anything: target.mkv = 0 bytes.

3 times, RUNME.CMD seemed to work but the decimation was wrong.
source.mkv frames:           1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029
target.mkv frames are:       1018      1020 1021 1022 1023 1024 1025      1027 1028 1029
target.mkv frames should be: 1018      1020 1021 1022 1023      1025 1026 1027 1028

'source.mkv frames 1018-1029.png' shows a source fragment that was made prior to frame number 
insertion but including my structure notation.

4 times, RUNME.CMD threw an "ffmpeg.exe - Application Error" exception:
"The instruction at 0x00007FF6086540D9 referenced memory at 0xFFFFFFFFFFFFFFFF. The memory could not 
be read."
or
"The instruction at 0x0000000000000000 referenced memory at 0x0000000000000000. The memory could not 
be written."
or
"The exception unknown software exception (0x40000015) occurred in the application at location 
0x00007FF6083E2424."