[FFmpeg-user] Lag when streaming video+audio from RPi Zero W with Logitech C920

[Carl Eugen Hoyos]

Am Sa., 9. Jan. 2021 um 07:46 Uhr schrieb Emanuele <meema at tiscali.it>:

> ffmpeg
>  -f v4l2
>
> -vcodec h264
>  -i /dev/video0
>  -f alsa
>  -i hw:1,0
>  -an
>  -preset
> ultrafast
>  -tune zerolatency
>  -vcodec copy
>  -pix_fmt yuv420p
>  -r 30
>
>  -b:v 512k
>  -flags +global_header
>  -f rtp rtp://192.168.0.10:5000 [3]
>
>  -vn
>  -flags +global_header
>  -acodec aac
>  -ac 1
>  -ar 16000
>  -ab
> 16k
>  -f rtp rtp://192.168.0.10:5002 [4] > both.sdp

Complete, uncut console output missing.

Are you producing two independent output streams and
asking why they are not in-sync? Why should they be?

Carl Eugen