Hello,
First I have to say I am a noob.
I am using LibreElec 8.2.5 RPI2.arm on RASPBERRY PI 3 MODEL B, I have license for MPEG2 video but some video can't be played, the last one has codec:
Stream 0
Type: Video
Codec: H264 - MPEG-4 AVC (part 10) (avc1)
Resolution: 1920x1090
Display resolution: 1920x1080
Frame rate: 25
Decoded format: Planar 4:2:0 YUV
Stream 1
Type: Audio
Codec: MPEG AAC Audio (mp4a)
Sample rate: 44100 Hz
Bits per sample: 16
Bitrate: 1411 kb/s
There is an option to install omxplayer on LibreElec or to try another video player ?