#Install & Usage This readme record how I installed and made this app come in to work. Chinese readme version: NDNvideo安装测试记录.
Any questions contact: Email: [email protected]
##Environment I`ve tested on: Ubuntu14.04、VirtualBox4.3.18 and a PC with camera.
For Virtualbox, be aware to install VM VirtualBox Extension Pack.
##Install In official BUILD:
ccnx (includes ccnr) If you plan streaming and ccnr crashes when it reaches size around 2GB. Create file
csrc/conf/local.mkwith:PLATCFLAGS= -O2 -D_FILE_OFFSET_BITS=64 -fPICpyccn (git://github.com/remap/PyCCN.git)
ndnvideo (play_latest branch - git://github.com/remap/ndnvideo.git)
gstreamer 0.10 - will NOT WORK with 1.0... must restrict packages to 0.10 for ndnvideo compatibilty.
###CCNx see: https://github.com/ProjectCCNx/ccnx
###PyCCN see: https://github.com/named-data/PyCCN
###gstreamer For Ubuntu 14.04:
sudo apt-get update
sudo apt-get install gstreamer0.10-plugins-ugly python-gst0.10-dev gstreamer0.10-ffmpeg
After installation, simple test for gstreamer:
gst-launch-0.10 videotestsrc ! ximagesink
# With camera. If you want to test it in a VM, you need to share the real camera with the VM.
gst-launch-0.10 v4l2src ! ffmpegcolorspace ! ximagesink
gst-launch-0.10 v4l2src ! 'video/x-raw-yuv,width=400,height=300,format=(fourcc)YUY2;video/x-raw-yuv,format=(fourcc)YV12' ! ffmpegcolorspace ! ximagesink
gst-launch-0.10 v4l2src ! videoscale ！ 'video/x-raw-yuv,width=400,height=300 ! ffmpegcolorspace ! ximagesink
###NDNvideo
git clone https://github.com/remap/ndnvideo.git
cd ndnvideo
git checkout <the latest branch>
##Usage
First, set the ccnx working environment, modify ~/.profile, at the tail add this(you can change the dir anywhere you like):
# ccnd configure
export CCND_LOG=$HOME/.ccn/ccnd_log
# ccnr configure
export CCNR_DIRECTORY=$HOME/.ccn/repo
export CCNR_STATUS_PORT=9680
run:
source ~/.profile
ccndstart
ccnr &
###Publish video/audio
####local video:
cd into ndnvideo/videostreaming/ and run:
./ccn_launch.py filesrc location=<your video location> ! typefind ! qtdemux name=mux \
mux.video_00 ! queue ! VideoSink location=/<your designated prefix>/video/video \
mux.audio_00 ! queue ! AudioSink location=/<your designated prefix>/video/audio
For example, I run this at my experiment:
./ccn_launch.py filesrc location=/home/jinpf/1.mp4 ! typefind ! qtdemux name=mux \
mux.video_00 ! queue ! VideoSink location=/jinpf/video/video \
mux.audio_00 ! queue ! AudioSink location=/jinpf/video/audio
####use camera Make sure you have a camera, and gstreamer test works well.
if you want to have different resolution, modify source code in ndnvideo/videostreaming/video_sink.py like:
cd into ndnvideo/videostreaming/ and run:
# publish video
./video_sink.py /<your designated prefix>/streaminfo/video
# publish audio
./audio_sink.py /<your designated prefix>/streaminfo/audio
For example, I run this at my experiment:
# publish video
./video_sink.py /jinpf/streaminfo/video
# publish audio
./audio_sink.py /jinpf/streaminfo/audio
After published the video into your local ccnx repo, you can use this to have a visual look:
ccnexplore &
Attention：Don`t use the same prefix/name at different video, if this happened, clear the ccnr repo：
ccndstop
cd $CCNR_DIRECTORY
rm -r *
#start ccnd
ccndstart
ccnr &
###Play video/audio
cd into ndnvideo/videostreaming/ and run:
./play.py /<your designated prefix>
For example, I run this at my experiment:
./play.py /jinpf | tee video_log
This will record play log in file video_log if you have problem.
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