error: 'av_register_all' was not declared in this scope

vivekmalik2466

i am using ffmpeg lib but get --main.cpp:25: error: 'av_register_all' was not declared in this scope
wt to do to avoid this.all ather thing r going we but ther is error in 'av_register_all' to register all files.

tucnak

At first, we need your code.

vivekmalik2466

#include <QtGui/QApplication>
#include "mainwindow.h"
#include "ffmpeg.h"

#include "iostream"
using namespace std;

extern "C" {
#include "ffmpeg/libavcodec/avcodec.h"
#include "ffmpeg/libavformat/avformat.h"
}

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

QApplication a(argc, argv);
MainWindow w;
w.show();

av_register_all();

return a.exec(&#41;;

}

tucnak

I will wrap it for you;)

@
#include <QtGui/QApplication>
#include “mainwindow.h”
#include “ffmpeg.h”
#include “iostream”

using namespace std;

extern “C” {
#include “ffmpeg/libavcodec/avcodec.h”
#include “ffmpeg/libavformat/avformat.h”
}

int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
av_register_all();
return a.exec(); }
@

tucnak

Problem in av_register_all().

"It's not declared in this scope" - it mean that you don't include file with defenition of av_register_all().

Maybe you should remove line #8 and #11 (in my wrapper).