Terminal input is ignored when playing stdin

[hxka]

mpv version and platform

mpv git-6028244160 (C) 2000-2017 mpv/MPlayer/mplayer2 projects
built on Mon Feb 27 22:36:29 MSK 2017

Platform is Linux

Reproduction steps

mpv --vo=null - < some-streamable-file

(--vo=null is to keep mpv from creating a window which would be able to receive input)

Expected behavior

Controls (e.g. space, p, q, etc) work

Actual behavior

Any input is ignored

Log file

output.txt

(I ran mpv, tried pressing some keys, closed it with ^C)

[CounterPillow]

If you use stdin to stream data into mpv, you obviously cannot use stdin to send keyboard input to mpv at the same time.

Either use the window, or have a look at the JSON IPC, if you need to read from stdin while also controlling the player somehow.

[ion1]

FWIW, foo | less has keyboard control. If stdout is a TTY (isatty(3)), I think it will be a read/write device.

[ChrisK2]

Either use the window, or have a look at the JSON IPC, if you need to read from stdin while also controlling the player somehow.

Or use a FIFO to pipe the steam to mpv as "file".

[hxka]

If you use stdin to stream data into mpv, you obviously cannot use stdin to send keyboard input to mpv at the same time.

The fact that mpv expects input from stdin instead of tty when being run from a terminal (what you seem to suggest is happening) is exactly the problem.

[hxka]

Or use a FIFO to pipe the steam to mpv as "file".

There's a cleaner workaround which doesn't require creating temporary files.

mpv /proc/self/fd/3 3<some-streamable-file

Or, using pipes:

some-command | mpv /proc/self/fd/3 3<&0 0</dev/tty

That's still a pretty clumsy way of doing that. If I had to do that every time I wanted to pipe something to less, I'd cut my veins.

[ChrisK2]

Does --input-file=/dev/tty work? If so, just put it in your config and you should be good.

If/How it makes sense to possibly do this by default is still up for discussion.

[ghost]

It probably won't read terminal input from this option.

[qmega]

zsh and I think bash will do the fd dance for you with `mpv <(some-command)`

…

On Feb 28, 2017, at 06:28, hxka ***@***.***> wrote: Or use a FIFO to pipe the steam to mpv as "file". There's a cleaner workaround which doesn't require creating temporary files. mpv /proc/self/fd/3 3<some-streamable-file Or, using pipes: some-command | mpv /proc/self/fd/3 3<&0 0</dev/tty That's still a pretty clumsy way of doing that. If I had to do that every time I wanted to pipe something to less, I'd cut my veins. ― You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[ddevault]

By default it makes sense to open /dev/tty instead of expecting stdin to provide user input.