[FFmpeg-user] ffplay -f flv - doesn't work?

[Carl Eugen Hoyos]

Roger Pack <rogerdpack2 <at> gmail.com> writes:

> When receiving with ffplay mpegts, this works:
> 
> ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30
> -pix_fmt yuv420p -an -f mpegts - | ffplay -f mpegts -

(What is the second -f mpegts good for?)

> however, with the following, I get this error message:
> 
> ffmpeg -f lavfi -i testsrc=duration=10:size=1280x720:rate=30
> -pix_fmt yuv420p -an -f flv - | ffplay -f flv -

Works fine here;-(
Could this be Windows-specific?
(Small back-seek impossible?)

Carl Eugen