Changing bit rate from 1550 to 400 made a huge difference. 33,120kB with length of 1:19
Thank you for pointing me to the bit rate.
Gus
#5032.5: [frameinput @ 02B1FE00] reading frame (Canvas) return -1
#5032.3: 46875920: Error number -1 occurred
#5032.5: frame= 1189 fps=7.4 q=-1.0 Lsize= 33120kB time=00:01:19.133 bitrate=3428.6kbits/s speed=0.493x
#5032.5: video:33109kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.03%
#5032.5: 1189 frames successfully decoded, 0 decoding errors