diff options
| author | David Blajda <blajda@hotmail.com> | 2017-06-17 20:41:09 -0400 |
|---|---|---|
| committer | David Blajda <blajda@hotmail.com> | 2017-06-17 22:14:39 -0400 |
| commit | 8d54a6746c1a441008692f7264fd0a03b25aada8 (patch) | |
| tree | 100fcee028eaacb58700fb925a3297c96b327cc7 | |
| parent | cd08e9160e1ccfa52262d74104a4cd58ae26f818 (diff) | |
FFmpeg options for swaygrab
| -rw-r--r-- | swaygrab/main.c | 13 | ||||
| -rw-r--r-- | swaygrab/swaygrab.1.txt | 11 |
2 files changed, 20 insertions, 4 deletions
diff --git a/swaygrab/main.c b/swaygrab/main.c index 413de1fa..c437653d 100644 --- a/swaygrab/main.c +++ b/swaygrab/main.c @@ -84,13 +84,18 @@ void grab_and_apply_movie_magic(const char *file, const char *payload, sway_abort("Unknown output %s.", name); } - const char *fmt = "ffmpeg -f rawvideo -framerate %d " + char *ffmpeg_opts = getenv("SWAYGRAB_FFMPEG_OPTS"); + if(!ffmpeg_opts) { + ffmpeg_opts = ""; + } + + const char *fmt = "ffmpeg %s -f rawvideo -framerate %d " "-video_size %dx%d -pixel_format argb " "-i pipe:0 -r %d -vf vflip %s"; char *cmd = malloc(strlen(fmt) - 8 /*args*/ - + numlen(width) + numlen(height) + numlen(framerate) * 2 - + strlen(file) + 1); - sprintf(cmd, fmt, framerate, width, height, framerate, file); + + strlen(ffmpeg_opts) + numlen(width) + numlen(height) + + numlen(framerate) * 2 + strlen(file) + 1); + sprintf(cmd, fmt, ffmpeg_opts, framerate, width, height, framerate, file); long ns = (long)(1000000000 * (1.0 / framerate)); struct timespec start, finish, ts; diff --git a/swaygrab/swaygrab.1.txt b/swaygrab/swaygrab.1.txt index b2c6389a..1da56db8 100644 --- a/swaygrab/swaygrab.1.txt +++ b/swaygrab/swaygrab.1.txt @@ -48,6 +48,13 @@ Options *-f, --focused*:: Capture only the currently focused container. +Environment Variables +--------------------- +swaygrab reads the following environment variables. + +*SWAYGRAB_FFMPEG_OPTS*:: + Pass additional arguments to FFmpeg when starting a capture. + Examples -------- @@ -57,6 +64,10 @@ swaygrab output.png:: swaygrab -c -o HDMI-A-1 output.webm:: Capture a webm of HDMI-A-1. +SWAYGRAB_FFMPEG_OPTS="-f alsa -i pulse" swaygrab -c:: + Capture the focused output and encode audio from the default recording + device. + Authors ------- |