Differences

This shows you the differences between two versions of the page.

--- hardware:raspi-vc [2020/07/15 10:20] – derpeter
+++ hardware:raspi-vc [2020/12/14 02:20] (current) – andi
@@ Line 1: / Line 1: @@
 = Video capture and encoding on the Raspberry pi
 This page is currently a research collection and commands might not work
@@ Line 9: / Line 10: @@
 * https://stamm-wilbrandt.de/en/Raspberry_camera.html
-== 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 ! 'video/x-h264, width=1920, height=1080, framerate=25/1, profile=high'  ! muxout. alsasrc device=hw:1,0 actual-latency-time=12000 buffer-time=200000  ! audioconvert ! avenc_aac ! aacparse ! muxout. mpegtsmux name=muxout ! queue  ! srtserversink uri='srt://:8888/'
+  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 ! 'video/x-h264, width=1920, height=1080, framerate=25/1, profile=high'  ! muxout. alsasrc device=hw:1,0 actual-latency-time=12000 buffer-time=200000  ! audioconvert ! avenc_aac ! aacparse ! muxout. mpegtsmux name=muxout ! queue  ! srtserversink uri='srt://:8888/'`
-== funktionierendes audio mit ffmpeg und ner pipe in das srt-tool "srt-live-transmit":
+=== funktionierendes audio mit ffmpeg und ner pipe in das srt-tool "srt-live-transmit":
-ffmpeg -analyzeduration 500000  -probesize 100000 -thread_queue_size 512 -f v4l2 -input_format h264 -video_size 1920x1080 -framerate 30 -i /dev/video0 -thread_queue_size 512 -f alsa -sample_rate 44100 -ac 2 -i hw:1 -map 0:0 -map 1:0 -bufsize 0 -af 'adelay=520|520,volume=0dB' -vcodec copy -acodec aac -f mpegts - | srt-live-transmit -v file://con 'srt://:8888&delay=80' -c 1316
+  ffmpeg -analyzeduration 500000  -probesize 100000 -thread_queue_size 512 -f v4l2 -input_format h264 -video_size 1920x1080 -framerate 30 -i /dev/video0 -thread_queue_size 512 -f alsa -sample_rate 44100 -ac 2 -i hw:1 -map 0:0 -map 1:0 -bufsize 0 -af 'adelay=520|520,volume=0dB' -vcodec copy -acodec aac -f mpegts - | srt-live-transmit -v file://con 'srt://:8888&delay=80' -c 1316
 ggf vorher im v4l2 codec parameter setzen:
-v4l2-ctl -c video_bitrate=4000000
+  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='rtmp://changeme/stream/bla live=1'
+  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='rtmp://changeme/stream/bla live=1'
-== 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
-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
 === video4linux
-gst-launch-1.0  v4l2src device=/dev/video0 do-timestamp=true ! videoscale !  videorate  ! videoconvert ! video/x-raw,width=1920,height=1080,framerate=25/1  ! omxh264enc control-rate=variable target-bitrate=5000000  !  h264parse ! flvmux ! rtmpsink location='rtmp://<host>/stream/picam live=1'
+  gst-launch-1.0  v4l2src device=/dev/video0 do-timestamp=true ! videoscale !  videorate  ! videoconvert ! video/x-raw,width=1920,height=1080,framerate=25/1  ! omxh264enc control-rate=variable target-bitrate=5000000  !  h264parse ! flvmux ! rtmpsink location='rtmp://<host>/stream/picam live=1'
 === raspivid wrapper
-gst-launch-1.0 rpicamsrc bitrate=5000000  do-timestamp=true ! h264parse ! flvmux ! rtmpsink location='rtmp://<host>/stream/picam'
+  gst-launch-1.0 rpicamsrc bitrate=5000000  do-timestamp=true ! h264parse ! flvmux ! rtmpsink location='rtmp://<host>/stream/picam'
+== 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/x-h264, framerate=25/1, profile=high ! h264parse config-interval=1 !  mpegtsmux ! queue ! srtserversink uri=srt://:10000/
+  gst-launch-1.0 rpicamsrc bitrate=8000000 ! video/x-h264, framerate=25/1, profile=high ! h264parse config-interval=1 !  mpegtsmux ! queue ! srtserversink uri=srt://:10000/
-= FFMPEG with SRT support on ubuntu 20.04
+== FFMPEG with SRT support on ubuntu 20.04
 <code>
 sudo apt build-dep ffmpeg libsrt-dev