Streaming a Live Broadcast from your Webcam to your iPhone

Published: Thursday, Apr 30, 2015 Last modified: Monday, Apr 8, 2024

ffmpeg -f v4l2 -i /dev/video0 -f alsa -i pulse -acodec aac -strict experimental -pix_fmt yuv420p playlist.m3u8

For tweaking resolution of the feed, you can run a command like ffmpeg -f v4l2 -list_formats all -i /dev/video1 to find out the resolution output of your input. Then you can configure that value as the switch -video_size which must be set between -f v4l2 & -i /dev/video1 otherwise you will get weird and wonderful errors. For example:

ffmpeg -f v4l2 -framerate 30 -video_size 1280x720 -i /dev/video1 -f alsa -i pulse -acodec aac -strict experimental -pix_fmt yuv420p -profile:v high -level 4.2 -movflags +faststart playlist.m3u8

I like HLS since it just requires the HTTP transport. Not odd protocols like RTMP and such and so forth. Then launch a httpd, like python -m http.server and share the URL, e.g.

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