Replace blocking function calls with awaits.

[toast/stream2beamer.git] / stream2beamer.md

diff --git a/stream2beamer.md b/stream2beamer.md
index 81d571507bf9d20600a866a2d9df53a6586a6aed..744c95d23b925edfcde59260a6f49e6d597c3c05 100644 (file)
--- a/stream2beamer.md
+++ b/stream2beamer.md
@@ -10,6 +10,13 @@ IPv6+IPv4, and no TLS:
 
     ./laplace -addr "[::]:8080" -tls=false
 
+## WebRTC signaling
+
+* https://developer.mozilla.org/en-US/docs/Web/API/WebRTC_API/Signaling_and_video_calling
+* https://www.tutorialspoint.com/webrtc/webrtc_signaling.htm
+* https://www.html5rocks.com/en/tutorials/webrtc/infrastructure/
+* https://github.com/topics/webrtc-signaling
+
 # gstreamer
 * Supports RTP
 * Supports webcam capture via v4l (video for linux)
@@ -29,15 +36,64 @@ The examples at https://github.com/centricular/gstwebrtc-demos.git work once
 
 has been set (see https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/811)
 
+There's a new recvonly example:
+
+* https://github.com/centricular/gstwebrtc-demos/commit/000cfb6cd817ca0f07d761795b352a8b8b9074f8
+* `sendonly/webrtc-recvonly-h264.c`
+
 ## gstreamer examples
     gst-launch-1.0 -v playbin uri=file:///home/philipp/tmp/GerisGame.mp4
     
+    # send
+    gst-launch-1.0 ximagesrc ! videoconvert ! videoscale ! video/x-raw,width=800,height=600 ! vp8enc ! rtpvp8pay ! udpsink host=239.255.12.42 port=5004
+    # receive
+    gst-launch-1.0 udpsrc address=239.255.12.42 port=5004 caps="application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)VP8-DRAFT-IETF-01, payload=(int)96, ssrc=(uint)2990747501, clock-base=(uint)275641083, seqnum-base=(uint)34810" ! rtpvp8depay ! vp8dec ! autovideosink
+    
+    # send
+    gst-launch-1.0 -v ximagesrc ! videoconvert ! videoscale ! video/x-raw,format=I420,width=800,height=600,framerate=25/1 ! jpegenc ! rtpjpegpay ! udpsink host=239.255.12.42 port=5004
+    # receive
+    gst-launch-1.0 udpsrc address=239.255.12.42 port=5004 ! application/x-rtp,encoding-name=JPEG,payload=26 ! rtpjpegdepay ! jpegdec ! autovideosink
+
+
 * https://stackoverflow.com/questions/33747500/using-gstreamer-to-capture-screen-and-show-it-in-a-window/33822024#33822024
 * http://www.einarsundgren.se/gstreamer-basic-real-time-streaming-tutorial/
 * https://gist.github.com/tetkuz/0c038321d05586841897
 * https://gist.github.com/esrever10/7d39fe2d4163c5b2d7006495c3c911bb
 * https://gist.github.com/nebgnahz/26a60cd28f671a8b7f522e80e75a9aa5
+* https://salsa.debian.org/debconf-video-team/ansible/-/blob/master/roles/voctomix/templates/videoteam-stream.j2
+* https://github.com/xfxf/video-scripts/blob/master/michael/youtube-live.sh
+  (and others in the same repo)
+
+## gstreamer webrtc, another example
+
+* blog post: https://aweirdimagination.net/2020/07/05/gstreamer-webrtc/
+* code: https://git.aweirdimagination.net/perelman/minimal-webrtc-gstreamer
     
+## websockets
+
+connecting to websockets (plus gstreamer and v4l2sink)
+
+https://michael.stapelberg.ch/posts/2020-06-06-iphone-camera-linux-v4l2loopback/
+
+       # send
+       laplace / chromium
+
+       # receive
+       websocat --insecure "wss://localhost:8080/ws_connect?id=cranky_kind_chipmunk"
+
+## more v4l2loopback/v4l2sink
+
+       # send
+       gst-launch-1.0 videotestsrc ! v4l2sink device=/dev/video42
+
+       # receive
+       cvlc v4l2:///dev/video42
+
+## SRT and gstreamer
+
+* https://github.com/Haivision/srt/blob/master/docs/gstreamer.md
+* https://srtlab.github.io/srt-cookbook/
+
 # VLC
 Note that you have to close VLC and open it again for new streaming as VLC leaves the connections
 open (I spent hours figuring out why http based streaming doesn't work - `netstat -4 --ip` is nice