results:

rame=   48 fps=5.0 q=0.0 size=    2074kB time=00:00:01.92 bitrate=8849.0kbits/s
frame=   52 fps=5.0 q=0.0 size=    2230kB time=00:00:02.08 bitrate=8783.2kbits/s
frame=   55 fps=5.0 q=0.0 size=    2367kB time=00:00:02.20 bitrate=8815.3kbits/s
pipe:0: Input/output error
frame=   56 fps=2.8 q=0.0 size=    2429kB time=00:00:02.24 bitrate=8881.7kbits/s
frame=   58 fps=2.8 q=0.0 Lsize=    2559kB time=00:00:02.32 bitrate=9037.0kbits/s
video:2558kB audio:0kB subtitle:0 global headers:0kB muxing overhead 0.055894%