mp4's wont work when trying to wallset

[CrossWay18]

No description provided.

[CodeAsm]

/They work on my pc. guess you gonna need to provide some more details.
My mp4
somevideo.mp4: ISO Media, MP4 Base Media v1 [ISO 14496-12:2003]
more details by ffmpeg:
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'somevideo.mp4': Metadata: major_brand : isom minor_version : 512 compatible_brands: isomiso2avc1mp41 encoder : Lavf60.3.100 Duration: 00:00:05.06, start: 0.000000, bitrate: 4582 kb/s Stream #0:0[0x1](und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 4502 kb/s, 24 fps, 24 tbr, 12288 tbn (default) Metadata: handler_name : ISO Media file produced by Google Inc. vendor_id : [0][0][0][0] Stream #0:1[0x2](und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default) Metadata: handler_name : ISO Media file produced by Google Inc. vendor_id : [0][0][0][0]

Did you install ffmpeg and other requirements, does wallpapers work with wallset? some output from commandline?