Changes between Version 1 and Version 2 of Yocto/gstreamer/streaming

Timestamp:

10/01/2018 07:00:02 PM (6 years ago)

Author:

Ryan Erbstoesser

Comment:

add in rtmp section that got chopped out from server crash

Yocto/gstreamer/streaming

@@ -97 +97 @@
 '''Note that it is recommended that you use [#rtsp RTSP] unless you know exactly what you are doing to overcome the limitations listed above'''
 
-Examples:
- * encode and send H264 video from Ventana:
+=== Example 1 ===
+ * Encode and send H264 video from Ventana:
   1. Start decoder first:
 {{{
@@ -117 +117 @@
  * when using RTP a capsfilter must be used to specify the payload as application/x-rtp as above. You can determine the capsfilter required by starting the encoder with a verbose flag {{{-v}}} and looking for  {{{caps = "application/x-rtp"}}}
 
+=== Example 2 ===
+* Encode and send H264 video from Ventana to a PC with VLC:
+1. Start decoder first:
+ a. Create SDP file like below (IP address in example is that of the Ventana board)
+{{{
+v=0
+m=video 5000 RTP/AVP 96
+c=IN IP4 172.24.20.207
+a=rtpmap:96 H264/90000
+}}}
+ b. Open SDP file in VLC
+2. Start encoder (Ventana) second: (IP address in below example is IP of the PC)
+{{{
+gst-launch-1.0 videotestsrc  ! imxipuvideotransform ! imxvpuenc_h264 ! rtph264pay config-interval=3 ! udpsink host=172.24.20.26 port=5000
+}}}
 
 [=#rtsp]
@@ -346 +361 @@
 }}}
   * the larger latency can help account for audio/video timestamp discontinuities in the encoded file source
+
+== RTMP Youtube Streaming ==
+
+
+
+It is possible to stream video to ​Youtube Live Streaming from the Gateworks board.
+
+Please note this requires the rtmpsink gstreamer plugin which is available on the Gateworks Trusty Multimedia Ubuntu image (which uses the Gateworks 3.14 kernel and gstreamer)
+
+Below is an example pipeline (which needs to be adjusted with the right youtube RTMP address). The pipeline will playback a colorbar pattern live on youtube.
+{{{
+gst-launch-1.0 videotestsrc do-timestamp=true is-live=true ! \
+"video/x-raw,width=640,height=360,framerate=15/1" ! queue ! \
+ autovideoconvert ! imxvpuenc_h264 bitrate=600 idr-interval=4 ! \
+ h264parse ! "video/x-h264,level=4.1,profile=main" ! queue ! \
+ mux. audiotestsrc is-live=true ! \
+"audio/x-raw, format=S16LE, endianness=1234, signed=true, width=16, depth=16, rate=44100,channels=2" ! \
+ queue ! voaacenc bitrate=128000 ! aacparse ! \ 
+audio/mpeg,mpegversion=4,stream-format=raw ! queue ! \
+flvmux streamable=true name=mux ! queue ! \ 
+rtmpsink location="rtmp://a.rtmp.youtube.com/live2/gwtest-0665.yvr6-25sv-7gth-dff1 live=true"
+}}}
+
+Another example below using a !GoPro camera via HDMI input:
+{{{
+gst-launch-1.0 imxv4l2videosrc device=/dev/video0 ! imxipuvideotransform ! imxvpuenc_h264 bitrate=5000 idr-interval=4 ! h264parse ! "video/x-h264,level=4.1,profile=main" ! queue ! mux. audiotestsrc is-live=true ! "audio/x-raw, format=S16LE, endianness=1234, signed=true, width=16, depth=16, rate=44100,channels=2" ! queue ! voaacenc bitrate=128000 ! aacparse ! audio/mpeg,mpegversion=4,stream-format=raw ! queue ! flvmux streamable=true name=mux ! queue ! rtmpsink location="rtmp://a.rtmp.youtube.com/live2/test.ygg4-24rv-54gh-dtt1 live=true"
+}}}
+
+
 
 [=#abs]