官方网址：
Gstreamer安装:
使用sudo apt-get install 安装
sudo apt-get install libgstreamer0.10-dev gstreamer-tools gstreamer0.10-tools gstreamer0.10-docsudo apt-get installgstreamer0.10-plugins-basegstreamer0.10-plugins-goodgstreamer0.10-plugins-uglygstreamer0.10-plugins-bad gstreamer0.10-plugins-bad-multiverse
安装了如下的gst的插件：
gstreamer0.10-tools
gstreamer0.10-x
gstreamer0.10-plugins-base
gstreamer0.10-plugins-good
gstreamer0.10-plugins-ugly
gstreamer0.10-plugins-bad
gstreamer0.10-ffmpeg
gstreamer0.10-alsa
gstreamer0.10-schroedinger
gstreamer0.10-pulseaudio
有可能需要安装的软件：
sudo apt-get install bison
sudo apt-get install flex
sudo apt-get install zlib1g
mad解码插件
apt-get install libmad0-dev
apt-get install gstreamer0.10-plugins-ugly
Initializing GStreamer
#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)"; elsenano_str = ""; printf ("This program is linked against GStreamer %d.%d.%d %s\n",major, minor, micro, nano_str); return 0;}
#include <gst/gst.h>#include <glib.h>//定义消息处理函数,static gboolean bus_call(GstBus *bus,GstMessage *msg,gpointer data){GMainLoop *loop = (GMainLoop *) data;//这个是主循环的指针，在接受EOS消息时退出循环switch (GST_MESSAGE_TYPE(msg)){case GST_MESSAGE_EOS:g_print("End of stream\n");g_main_loop_quit(loop);break;case GST_MESSAGE_ERROR:{gchar *debug;GError *error;gst_message_parse_error(msg,&error,&debug);g_free(debug);g_printerr("ERROR:%s\n",error->message);g_error_free(error);g_main_loop_quit(loop);break;}default:break;}return TRUE;}int main(int argc,char *argv[]){GMainLoop *loop;GstElement *pipeline,*source,*decoder,*sink;//定义组件GstBus *bus;gst_init(&argc,&argv);loop = g_main_loop_new(NULL,FALSE);//创建主循环，在执行 g_main_loop_run后正式开始循环if(argc != 2){g_printerr("Usage:%s <mp3 filename>\n",argv[0]);return -1;}//创建管道和组件pipeline = gst_pipeline_new("audio-player");source = gst_element_factory_make("filesrc","file-source");decoder = gst_element_factory_make("mad","mad-decoder");sink = gst_element_factory_make("autoaudiosink","audio-output");if(!pipeline||!source||!decoder||!sink){g_printerr("One element could not be created.Exiting.\n");return -1;}//设置 source的location 参数。即 文件地址.g_object_set(G_OBJECT(source),"location",argv[1],NULL);//得到 管道的消息总线bus = gst_pipeline_get_bus(GST_PIPELINE(pipeline)); //添加消息监视器gst_bus_add_watch(bus,bus_call,loop);gst_object_unref(bus);//把组件添加到管道中.管道是一个特殊的组件，可以更好的让数据流动gst_bin_add_many(GST_BIN(pipeline),source,decoder,sink,NULL); //依次连接组件 gst_element_link_many(source,decoder,sink,NULL); //开始播放gst_element_set_state(pipeline,GST_STATE_PLAYING);g_print("Running\n");//开始循环g_main_loop_run(loop);g_print("Returned,stopping playback\n");gst_element_set_state(pipeline,GST_STATE_NULL);gst_object_unref(GST_OBJECT(pipeline));return 0;}
编译运行
gcc-Walltest2.c-otest2 $(pkg-config–cflags–libsgstreamer-0.10)（注意！！！很多地方写的这条命令 ：gcc-Wall$(pkg-config–cflags–libsgstreamer-0.10)-gtest2.c-otest2 ，根本编译不过！）
编译时借助了pkg-configpkg-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)
./test2 ./abc.mp3
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