Gstreamer

Using gstreamer to stream h264 via TCP or UDP

Prerequisites

a. Build Gstream 1.2 from source (prefered way)

I. Environment Setup

Create a file called set_env.sh and source it from the terminal before executing programs or gstreamer packages. This must be done in every terminal that you want to use gstreamer in.

Create the file:

$ vim set_env.sh

PFX=/home/user/gst/runtime
export PATH=$PATH:$PFX/bin
export LD_RUN_PATH=$LD_RUN_PATH:$PFX/lib
export PKG_CONFIG_PATH=$PKG_CONFIG_PATH:$PFX/lib/pkgconfig
export GST_PLUGIN_PATH=$PFX/lib/gstreamer-1.0

Source the file

$ . set_env.sh

II. Dependencies

• libx264-dev — Provides H.264 encoder.
• libgudev-1.0-dev — Required for the new uvch264src
• libusb-1.0-0-dev — Required for the new uvch264src
• yasm — Assembler needed for gst-libav
• autoconf
• bison
• gtk-doc-tools

sudo apt-get install libx264-dev
sudo apt-get install libgudev-1.0-dev
sudo apt-get install libusb-1.0-0-dev
sudo apt-get install yasm
sudo apt-get install autoconf
sudo apt-get install flex bison
sudo apt-get install gtk-doc-tools

III. Build Order

Gstreamer source packages are available from: https://gstreamer.freedesktop.org/modules/

git clone https://cgit.freedesktop.org/gstreamer/orc
git clone https://cgit.freedesktop.org/gstreamer/gstreamer
git clone https://cgit.freedesktop.org/gstreamer/gst-plugins-base
git clone https://cgit.freedesktop.org/gstreamer/gst-plugins-good
git clone https://cgit.freedesktop.org/gstreamer/gst-plugins-bad
git clone https://cgit.freedesktop.org/gstreamer/gst-plugins-ugly
git clone https://cgit.freedesktop.org/gstreamer/gst-libav

1.Setup environment

. set_env.sh

2.Build ORC using --prefix=/home/user/gst/runtime

cd orc
./autogen.sh --prefix=/home/user/gst/runtime && make && sudo make install

3.Build opus 1.1 from source if you need it

4.Build gstreamer using --prefix=/home/user/gst/runtime

cd gstreamer
./autogen.sh --prefix=/home/user/gst/runtime && make && sudo make install

5.Build gst-plugins-base using --enable-orc --prefix=/home/user/gst/runtime

cd gat-plugins-base
./autogen.sh --enable-orc --prefix=/home/user/gst/runtime && make && sudo make install

6.Build gst-plugins-good using --enable-orc --prefix=/home/user/gst/runtime

cd gat-plugins-good
./autogen.sh --enable-orc --prefix=/home/user/gst/runtime && make && sudo make install

7.Build gst-plugins-bad using --enable-orc --prefix=/home/user/gst/runtime

cd gat-plugins-bad
./autogen.sh --enable-orc --prefix=/home/user/gst/runtime && make && sudo make install

8.Build gst-plugins-ugly using --enable-orc --prefix=/home/user/gst/runtime

cd gat-plugins-ugly
./autogen.sh --enable-orc --prefix=/home/user/gst/runtime && make && sudo make install

9.Build gst-libav using --enable-orc --prefix=/home/user/gst/runtime

cd gat-libav
./autogen.sh --enable-orc --prefix=/home/user/gst/runtime && make && sudo make install

b.Install gstreamer 1.2 usinng install package(only if you) failed building from source

sudo apt-get install libgstreamer1.0-0 
sudo apt-get install gstreamer1.0-plugins-base 
sudo apt-get install gstreamer1.0-plugins-good 
sudo apt-get install gstreamer1.0-plugins-bad 
sudo apt-get install gstreamer1.0-plugins-ugly sudo apt-get install 
sudo apt-get install gstreamer1.0-libav 
sudo apt-get install gstreamer1.0-doc 
sudo apt-get install gstreamer1.0-tools

Usage

To start the receiver:

gst-launch-1.0 -v udpsrc port=6666 ! application/x-rtp, encoding-name=H264 ! rtph264depay ! h264parse ! avdec_h264 ! videoconvert ! autovideosink

To start the sender:

gst-launch-1.0 uvch264src device=/dev/video1 name=src auto-start=true src.vidsrc ! video/x-h264,width=1280,height=720,framerate=30/1 ! h264parse ! rtph264pay ! udpsink host=127.0.0.1(Receiver's IP address) port=6666

More Info

http://oz9aec.net/software/gstreamer/using-the-logitech-c920-webcam-with-gstreamer-12

https://answers.ros.org/question/295407/how-to-broadcast-hardware-encoded-video-from-the-logitech-c920-to-ros0

https://gstreamer.freedesktop.org/documentation/installing/on-linux.html

https://gstreamer.freedesktop.org/