Trickplay, again

[fract]

heres output...this is for windows machine...i dont know if same command can be run for Synology?

Code:

C:\ffmpeg-7.0.1-full_build\bin>ffmpeg -loglevel error -threads 1 -noautorotate -i file:"Z:\PLEX\UHD\Movies\Bullet Train (2022)\Bullet Train (2022).mkv" -an -sn -vf "fps=0.10000000149011612,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709,scale=trunc(min(max(iw\,ih*(a*sar))\,320)/2)*2:trunc(ow/(a*sar)/2)*2,format=yuv420p" -threads 1 -c:v mjpeg -qscale:v 4 -f image2 test.jpg
[image2 @ 000001b96b7f9580] Cannot write more than one file with the same name. Are you missing the -update option or a sequence pattern?
[vost#0:0/mjpeg @ 000001b96bd403c0] Error submitting a packet to the muxer: Invalid argument
    Last message repeated 1 times
[out#0/image2 @ 000001b96b7cd000] Error muxing a packet
[out#0/image2 @ 000001b96b7cd000] Task finished with error code: -22 (Invalid argument)
[out#0/image2 @ 000001b96b7cd000] Terminating thread with return code -22 (Invalid argument)

synology otput, different movie:

Code:

ffmpeg -loglevel error -threads 1 -noautorotate -i file:"/volumeUSB2/usbshare/Plex/UHD/Movies/Mortal Kombat (2021)/Mortal Kombat (2021).mkv" -an -sn -vf "fps=0.10000000149011612,setparams=color_primaries=bt709:color_trc=bt709:colorspace=bt709,scale=trunc(min(max(iw\,ih*(a*sar))\,320)/2)*2:trunc(ow/(a*sar)/2)*2,format=yuv420p" -threads 1 -c:v mjpeg -qscale:v 4 -f image2 test.jpg
[NULL @ 0x562257523a00] Requested output format 'image2' is not a suitable output format
test.jpg: Invalid argument