对链接库的GStreamer问题的Ubuntu 11.10 [英] Issues linking against gstreamer libraries ubuntu 11.10
问题描述
于是我开始说是要利用的GStreamer库的项目。我正在从GStreamer的文档的测试项目,并正在以下error.This程序工作正常上的archlinux但示数出在Ubuntu
GCC`pkg配置--cflags --libs的GStreamer-0.10`的main.c -o球员
/tmp/cciFhGCe.o:在函数'主':
main.c中:(文字+ 0X1E):未定义的参考`gst_init
。main.c中:(文字+ 0x36数据):未定义的参考`gst_version
collect2:劳工处返回1退出状态
使:*** [播放]错误1
我的code是这是我从GStreamer的文档
得到了以下 的#include<&stdio.h中GT;
#包括LT&; GST / gst.h>INT
主(INT ARGC,
的char * ARGV [])
{
常量gchar * nano_str;
guint主要,次要,微,纳米; gst_init(安培; ARGC,&安培; argv的); gst_version(安培;大,与放;未成年人,和放大器;微,&安培;纳米); 如果(纳米== 1)
nano_str =(CVS);
否则如果(纳米== 2)
nano_str =($ P $租赁前的);
其他
nano_str =; 的printf(这个程序是对的GStreamer%d个。%d个链接。%d个%S \\ n,
主要,次要,微型,nano_str); 返回0;
}
和我使用的编译命令
GCC`pkg配置--cflags --libs的GStreamer-0.10`的main.c -o球员
和pkg配置的输出
-pthread -I / usr / include目录/巧舌如簧-2.0 -I / usr / lib目录/ x86_64的-Linux的GNU /油嘴-2.0 /包括-I / usr / include目录/ GStreamer的-0.10 -I / usr / include目录/ -pthread的libxml2 -lgstreamer-0.10 -lgobject-2.0 -lgmodule-2.0 -lxml2 -lgthread-2.0 -lrt -lglib-2.0
所以,感谢freenode上#gstreamer的伟大的球员
在unbuntu GCC的版本一些更改了pkg配置语句的顺序进行。
GCC`pkg配置的GStreamer-0.10 --cflags`的main.c -o player.out`pkg配置的GStreamer-0.10 --libs`
使用此格式固定它。
So I am starting a project that is going to make use of the gstreamer libraries. I am running the test project from the gstreamer documentation and am getting the following error.This program worked properly on archlinux but is erroring out on ubuntu
gcc `pkg-config --cflags --libs gstreamer-0.10` main.c -o player
/tmp/cciFhGCe.o: In function `main':
main.c:(.text+0x1e): undefined reference to `gst_init'
main.c:(.text+0x36): undefined reference to `gst_version'
collect2: ld returned 1 exit status
make: *** [player] Error 1
My code is the following which I got from the gstreamer documentation
#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;
}
and the command I am using to compile is
gcc `pkg-config --cflags --libs gstreamer-0.10` main.c -o player
and the output of pkg-config
-pthread -I/usr/include/glib-2.0 -I/usr/lib/x86_64-linux-gnu/glib-2.0/include -I/usr/include/gstreamer-0.10 -I/usr/include/libxml2 -pthread -lgstreamer-0.10 -lgobject-2.0 -lgmodule-2.0 -lxml2 -lgthread-2.0 -lrt -lglib-2.0
So thanks to the great guys on freenode #gstreamer
In unbuntu's version of gcc some changes were made to the ordering of pkg-config statements.
gcc `pkg-config gstreamer-0.10 --cflags` main.c -o player.out `pkg-config gstreamer-0.10 --libs`
Using this format fixed it.
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