GStreamer Creating C Code applications
Gstreamer C Code Applications
This wiki documents how to create a Gstreamer C code application for Ridgerun's SDK. The applications will be created at $(DEVDIR)/myapps, will use Ridgerun classes for gstreamer, autotools and general sdk installation into target.
The demo was done on Turrialba SDK for a LeopardBoard DM368
Gstreamer documentation has information about creating applications at: gstreamer.freedesktop.org/data/doc/gstreamer/head/manual/html/chapter-helloworld.html
Additionally Ridgerun provides an example that can be added at devdir: $DEVDIR/myapp, this application can be compiled for ARM and also for HOST
Git repository:
git clone https://github.com/RidgeRun/video-capture-application.git video-capture-application
Gstreamer applications can have parsers, callbacks according to signals, read values from command lines and many others, in this case this is just a simple application that runs the following pipeline:
videotestsrc num-buffers=300 ! 'video/x-raw-yuv,format=(fourcc)NV12,width=640, height=480' ! dmaiaccel ! dmaienc_h264 ! queue ! qtmux ! filesink location=<Specified as argv[1]>
Application structure
hello-gst/
├── Config
├── Makefile
└── src
├── autogen.sh
├── configure.ac
├── Makefile.am
├── README
└── src
├── gstreamer.c
└── Makefile.am
Compiling Application
ARM Compilation
In order to compile for ARM Ridgerun SDK will handle dependencies, just clone the repository into a directory at Ridgerun SDK's myapps directory, select it at make config and run make at SDK's root.
Running application
When the application is installed it can be run at the target with the following command:
video_capture_application test_file.h264
x86 Compilation
After cloning the application run the autogen.sh script, configure and compile with following commands: It is highly suggested to not run these commands into a Devdir, that has modified the environment with `make env`
git clone https://github.com/RidgeRun/video-capture-application.git video-capture-application cd hello-gst/src ./autogen.sh ./configure make
After compiling the application can be executed as any regular binary, file name must be defined:
cd <Directory>/src/src ./hello_gst video_test.h264