Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision | |||
| hardware:raspi-vc [2020/12/14 01:20] – andi | hardware:raspi-vc [2026/07/26 22:17] (current) – external edit 127.0.0.1 | ||
|---|---|---|---|
| Line 1: | Line 1: | ||
| - | = Video capture and encoding on the Raspberry pi | + | # Video capture and encoding on the Raspberry pi |
| This page is currently a research collection and commands might not work | This page is currently a research collection and commands might not work | ||
| Line 10: | Line 10: | ||
| * https:// | * https:// | ||
| - | === gstreamer pipe gen srt mit kaputtem alsasrc-audio vom usb: | + | ### gstreamer pipe gen srt mit kaputtem alsasrc-audio vom usb: |
| gst-launch-1.0 rpicamsrc inline-headers=true annotation-mode=date+time+frame-number+black-background brightness=60 preview=1 awb-mode=1 bitrate=10000000 exposure-mode=fixedfps sensor-mode=1 keyframe-interval=25 ! ' | gst-launch-1.0 rpicamsrc inline-headers=true annotation-mode=date+time+frame-number+black-background brightness=60 preview=1 awb-mode=1 bitrate=10000000 exposure-mode=fixedfps sensor-mode=1 keyframe-interval=25 ! ' | ||
| - | === funktionierendes audio mit ffmpeg und ner pipe in das srt-tool " | + | ### funktionierendes audio mit ffmpeg und ner pipe in das srt-tool " |
| ffmpeg -analyzeduration 500000 | ffmpeg -analyzeduration 500000 | ||
| Line 23: | Line 23: | ||
| v4l2-ctl -c h264_i_frame_period=25 | v4l2-ctl -c h264_i_frame_period=25 | ||
| - | === rtmp stream from pi cam | + | ### rtmp stream from pi cam |
| raspivid -fps 25 -h 1080 -w 1920 -n -t 0 -g 5 -b 5000000 -stm -o - | gst-launch-1.0 -v fdsrc ! h264parse ! flvmux ! rtmpsink location=' | raspivid -fps 25 -h 1080 -w 1920 -n -t 0 -g 5 -b 5000000 -stm -o - | gst-launch-1.0 -v fdsrc ! h264parse ! flvmux ! rtmpsink location=' | ||
| - | === RTP stream sink and source | + | ### RTP stream sink and source |
| raspivid -fps 25 -h 1080 -w 1920 -n -t 0 -b 5000000 -o - | gst-launch-1.0 -v fdsrc ! h264parse ! rtph264pay config-interval=1 ! gdppay ! tcpserversink host=10.23.42.145 port=5000 | raspivid -fps 25 -h 1080 -w 1920 -n -t 0 -b 5000000 -o - | gst-launch-1.0 -v fdsrc ! h264parse ! rtph264pay config-interval=1 ! gdppay ! tcpserversink host=10.23.42.145 port=5000 | ||
| Line 33: | Line 33: | ||
| gst-launch-1.0 -v tcpclientsrc host=10.23.42.145 port=5000 ! gdpdepay ! rtph264depay ! decodebin ! autovideosink sync=false | gst-launch-1.0 -v tcpclientsrc host=10.23.42.145 port=5000 ! gdpdepay ! rtph264depay ! decodebin ! autovideosink sync=false | ||
| - | == Capture from UVC capture device and stream rtmp | + | ## Capture from UVC capture device and stream rtmp |
| - | === video4linux | + | ### video4linux |
| gst-launch-1.0 | gst-launch-1.0 | ||
| - | === raspivid wrapper | + | ### raspivid wrapper |
| gst-launch-1.0 rpicamsrc bitrate=5000000 | gst-launch-1.0 rpicamsrc bitrate=5000000 | ||
| - | == read encoded video | + | ## read encoded video |
| - | === read encoded video with ffmpeg from the cam | + | ### read encoded video with ffmpeg from the cam |
| ffmpeg -f video4linux2 -input_format h264 -video_size 1920x1080 -framerate 30 -i /dev/video0 -vcodec copy -an test.h264 | ffmpeg -f video4linux2 -input_format h264 -video_size 1920x1080 -framerate 30 -i /dev/video0 -vcodec copy -an test.h264 | ||
| - | === read encoded video with gst and provide output via srt server | + | ### read encoded video with gst and provide output via srt server |
| gst-launch-1.0 rpicamsrc bitrate=8000000 ! video/ | gst-launch-1.0 rpicamsrc bitrate=8000000 ! video/ | ||
| - | == FFMPEG with SRT support on ubuntu 20.04 | + | ## FFMPEG with SRT support on ubuntu 20.04 |
| < | < | ||
| sudo apt build-dep ffmpeg libsrt-dev | sudo apt build-dep ffmpeg libsrt-dev | ||