Am 13.11.2022 um 21:57 schrieb Reino Wijnsma:
Hello Michael,
On 2022-11-13T20:45:42+0100, Michael Koch <astroelectro...@t-online.de> wrote:
ffmpeg -f lavfi -i testsrc2 -f nut | ffplay -
This command line works fine and I have used it many times.
It shouldn't, because you forgot a "-" after "-f nut".
oops, sorry I forgot to type that "-" in the email. You are right that
it doesn't work without it.
But I don't know what's the meaning of the - character after ffplay.
Input or output. An url or a file-path. And in this case; stdout and stdin.
FFmpeg's stdout is piped to FFplay's stdin.
I'm surprised you didn't know.
Is the "-" at the end an (undocumented) option of FFplay, or is it a
batch file operator?
Michael
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