Gstreamer学习笔记----第一个helloworld程序

1.Ubuntu上安装gstreamer库：

apt-get install libgstreamer0.10-0

apt-get install libgstreamer0.10-dev

apt-get install libgstreamer0.10-0-dbg

2.编写测试gstreamer库的helloworld.c:

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#include <stdio.h>

#include <gst/gst.h>

int main (int argc,char *argv[])

{

const gchar *nano_str;

guint major, minor, micro, nano;

gst_init (&argc, &argv);

gst_version (&major, &minor, µ, &nano);

if (nano == 1)

nano_str = "(CVS)";

else if (nano == 2)

nano_str = "(Prerelease)";

else

nano_str = "";

printf ("This program is linked against GStreamer %d.%d.%d %s\n",

major, minor, micro, nano_str);

return 0;

}

这是个获得gstreamer库版本的测试用例。

3.编译程序：

gcc -Wall helloworld.c -o helloworld $(pkg-config --cflags --libs gstreamer-0.10)

编译时借助了 pkg-config
pkg-config --cflags --libs gstreamer-0.10 会把gstreamer-0.10编译所依赖的库的路径 头文件的路径全部帮你找出来，不用你再依次写出。
(上面这条pkg-config --cflags --libs gstreamer-0.10 就相当于：
-pthread -I/usr/include/glib-2.0 -I/usr/lib/i386-linux-gnu/glib-2.0/include -I/usr/include/gstreamer-0.10 -I/usr/include/libxml2 -pthread -L/usr/lib/i386-linux-gnu -lgstreamer-0.10 -lgobject-2.0 -lgmodule-2.0 -lxml2 -lgthread-2.0 -lrt -lglib-2.0)

4.运行helloworld结果： ./helloworld

This program is linked against GStreamer 0.10.32