mmal
mmal_vs_port_enabled failed to enable port vc,.ril.video decode H264 ENOMEM
gpu_mem_1024=256 in /boot/config.txt
This means I have 1 GB RAM on my PI3B so 256 is assigned for VRAM.
I have read increasing VRAM a little might help?
video decoding not supported for file (h264 mmal) trying software
Alot of these problems I think where width of marquees being to wide. I had one that was like 400000 Pixels wide. Insane.
Look in windows explorer shows width and sort. Shrink some of these pics down.