> This is not a problem with ffmpeg. You should configure your shell to
> set the tty to a sane state before a prompt. With zsh, it is done with
> "ttyctl -f".
thanks for the tip - i've been looking into this and not understanding
how to accomplish it
for bash the command is stty and it seems the relevant options are:
ixany
ixoff
ixon
what i don't understand is 1) which one(s) to use and 2) how to use them
in a shell script; should this be near the top of the script so it's
global, or should these options be enabled/disabled as needed per-command?
Nicolas George wrote:
meex (12022-01-26):
in a bash script i'm using ffmpeg to create a spectrogram movie and pipe the
output to a decoder (mpv in this case, but it doesn't matter)
as expected, if the user exits mpv before ffmpeg completes, it returns a
broke pipe error and i would like to avoid that if possible
the problem is that the terminal may refuse to accept any user input when
this happens (this occurs ~20% of the time)
This is not a problem with ffmpeg. You should configure your shell to
set the tty to a sane state before a prompt. With zsh, it is done with
"ttyctl -f".
is there a way to have ffmpeg exit gracefully when the pipe is broken?
Again, it is not ffmpeg's responsibility:
Compare:
ssecem ~ $ sh -c "dmesg" | head -n 1
[ 0.018123] On node 0, zone DMA32: 1580 pages in unavailable ranges
zsh: exit 141 sh -c "dmesg" |
zsh: done head -n 1
ssecem ~ $ sh -c "trap '' PIPE; dmesg" | head -n 1
[ 0.018123] On node 0, zone DMA32: 1580 pages in unavailable ranges
dmesg: write error
zsh: exit 1 sh -c "trap '' PIPE; dmesg" |
zsh: done head -n 1
Regards,
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