Add visualization of concept.

[toast/stream2beamer.git] / stream2beamer.md

diff --git a/stream2beamer.md b/stream2beamer.md
index 081cef01c8c24e3529cf5f9015112905fbc256bc..61ebe4d5a8ffda83cbb7a9ed0696fee2f9c5814d 100644 (file)
--- a/stream2beamer.md
+++ b/stream2beamer.md
@@ -10,7 +10,24 @@ IPv6+IPv4, and no TLS:
 
     ./laplace -addr "[::]:8080" -tls=false
 
 
     ./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
 # gstreamer

+* Supports RTP
+* Supports webcam capture via v4l (video for linux)
+* Supports screen capture via xmanager/ximagesrc
+* Interesting URLs:
+  * WebRTC in one direction only: https://stackoverflow.com/questions/57430215/how-to-use-webrtcbin-create-offer-only-receive-video
+  * gstreamer to VLC via RTP: https://stackoverflow.com/questions/13154983/gstreamer-rtp-stream-to-vlc
+  * https://github.com/intel/gstreamer-media-SDK/issues/138
+  * https://developer.ridgerun.com/wiki/index.php?title=GstWebRTC_Pipelines
+  * https://developer.ridgerun.com/wiki/index.php?title=GstWebRTC_-_H264-Opus_Examples#Receive_Pipeline
+

 ## WebRTC
 gstreamer has a WebRTC implementation.
 The examples at https://github.com/centricular/gstwebrtc-demos.git work once
 ## WebRTC
 gstreamer has a WebRTC implementation.
 The examples at https://github.com/centricular/gstwebrtc-demos.git work once


@@ -19,9 +36,90 @@ 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)
 
 
 has been set (see https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/issues/811)
 

-Another maybe helpful link: https://developer.ridgerun.com/wiki/index.php?title=GstWebRTC_-_H264-Opus_Examples#Receive_Pipeline
+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

 
 

-Also: https://developer.ridgerun.com/wiki/index.php?title=GstWebRTC_Pipelines
+       # receive
+       cvlc v4l2:///dev/video42
+
+## SRT and gstreamer
+
+* https://github.com/Haivision/srt/blob/master/docs/gstreamer.md
+* https://srtlab.github.io/srt-cookbook/
+
+## gstreamer and rtsp
+
+working minimal example: https://github.com/Enne2/PyGObject-GstRtspServer/blob/master/rtsp-server.py
+
+other maybe helpful links (for getting an existing pipeline streamed):
+
+* https://stackoverflow.com/questions/52562499/is-it-possible-to-stream-an-existing-gstreamer-pipeline-through-gstrtspserver
+* http://gstreamer-devel.966125.n4.nabble.com/Continuously-streaming-a-video-file-code-review-td4671364.html
+* https://stackoverflow.com/questions/59858898/how-to-convert-a-video-on-disk-to-a-rtsp-stream
+* http://gstreamer-devel.966125.n4.nabble.com/RTSP-Server-from-a-manually-created-and-linked-pipeline-td4680305.html
+* http://gstreamer-devel.966125.n4.nabble.com/Using-C-API-based-pipelines-in-RTSP-server-without-quot-launch-quot-arg-td4680144.html
+* RTSP on_media_configure and appsrc: https://github.com/GStreamer/gst-rtsp-server/blob/master/examples/test-appsrc.c
+* Link two pipelines: http://gstreamer-devel.966125.n4.nabble.com/Two-pipelines-link-them-merge-them-easy-handling-td4686753.html
+
+a "relay" between cameras and rtsp, in rust:
+
+* https://github.com/thirtythreeforty/neolink
+
+## gstreamer: from udp to rtsp
+
+* http://trac.gateworks.com/wiki/Yocto/gstreamer/streaming
+
+## HLS
+
+or gstreamer's `hlssink(2)`, if we want to serve files via HTTP and kodi can
+read/play .m3u8 playlist

 
 # VLC
 Note that you have to close VLC and open it again for new streaming as VLC leaves the connections
 
 # VLC
 Note that you have to close VLC and open it again for new streaming as VLC leaves the connections


@@ -80,7 +178,7 @@ The address at the source side has to be the external one of the local computer.
 ### Source (server)
     cvlc -vv --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:standard{access=http,mux=ogg,dst=0.0.0.0:8080}' GerisGame.mp4
 
 ### Source (server)
     cvlc -vv --sout '#transcode{vcodec=mp4v,acodec=mpga,vb=800,ab=128}:standard{access=http,mux=ogg,dst=0.0.0.0:8080}' GerisGame.mp4
 

-# Player (client)
+### Player (client)

 
     vlc http://192.168.1.54:8080
 
 
     vlc http://192.168.1.54:8080
 


@@ -89,3 +187,9 @@ The address at the source side has to be the external one of the local computer.
 The player built into code knows at least the following streaming protocols: http, rtsp.
 
 https://kodi.wiki/index.php?title=Internet_video_and_audio_streams
 The player built into code knows at least the following streaming protocols: http, rtsp.
 
 https://kodi.wiki/index.php?title=Internet_video_and_audio_streams

+
+
+# Random other projects
+
+* µstreamer: https://github.com/pikvm/ustreamer
+* minimal-webrtc-gstreamer: https://git.aweirdimagination.net/perelman/minimal-webrtc-gstreamer