[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: ffmpeg and alsa/pulseaudio
From: |
Leo Famulari |
Subject: |
Re: ffmpeg and alsa/pulseaudio |
Date: |
Thu, 28 May 2020 21:34:34 -0400 |
On Tue, Apr 07, 2020 at 11:54:35AM +0000, Ekaitz Zarraga wrote:
> Hi,
>
> I'm trying to make a screencast with ffmpeg and I'm having issues.
>
> I had a screen recording script on the past, based on alsa, but it's not
> working in guix because it looks like ffmpeg wasn't compiled with alsa. Is
> that true? Is there something I missing to activate alsa on ffmpeg?
>
>
> This is the command I was running:
>
> ffmpeg \
> -y -f x11grab -draw_mouse 1 -framerate 25 -video_size 1920x1080 -i
> $DISPLAY \
> -f alsa -ac 2 -i default \
> -pix_fmt yuv420p -c:v libx264 -preset veryfast \
> -c:a libmp3lame -q:v 1 -s 1920x1080 -f matroska \
> output.mkv
I tried this but it failed with ":0: Invalid argument". That's the
$DISPLAY variable. Do you know what it should say?
- Re: ffmpeg and alsa/pulseaudio,
Leo Famulari <=