Differences
This shows you the differences between two versions of the page.
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hardware:raspi-vc [2020/07/15 10:20] – derpeter | hardware:raspi-vc [2020/12/14 02:20] (current) – andi | ||
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= 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 | ||
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* 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 ! ' | + | |
- | == 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 | + | |
ggf vorher im v4l2 codec parameter setzen: | ggf vorher im v4l2 codec parameter setzen: | ||
- | v4l2-ctl -c video_bitrate=4000000 | + | |
- | 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 | + | |
- | 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 | + | |
=== raspivid wrapper | === raspivid wrapper | ||
- | gst-launch-1.0 rpicamsrc bitrate=5000000 | + | |
+ | |||
+ | == 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 |