#include <stdio.h>
#include <stdlib.h>
#include <libavformat/avformat.h>
#include <libavcodec/avcodec.h>

int time_base_den(char *path)
{
	FILE *file = fopen(path,"r");
	if( file ) 
	{
		fclose(file);
		av_register_all();
		avcodec_register_all();
		AVFormatContext *ps=NULL;
		//int ret=avformat_open_input(&ps,path,NULL,NULL);
		int ret=av_open_input_file(&ps,path,NULL,0,NULL);
		//printf("avformat_open_input ret:%i\n",ret);
		if(ret==0)
		{
			av_find_stream_info(ps);
			AVCodecContext *enc = ps->streams[0]->codec;
			//return ps->bit_rate;
			return enc->time_base.den;
			

		}
		else
			return -1;			
	 } 
	 else 
		return -1;	
	
}
//enc->time_base.num

int time_base_num(char *path)
{
	FILE *file = fopen(path,"r");
	if( file ) 
	{
		fclose(file);
		av_register_all();
		avcodec_register_all();
		AVFormatContext *ps=NULL;
		//int ret=avformat_open_input(&ps,path,NULL,NULL);
		int ret=av_open_input_file(&ps,path,NULL,0,NULL);
		//printf("avformat_open_input ret:%i\n",ret);
		if(ret==0)
		{
			av_find_stream_info(ps);
			AVCodecContext *enc = ps->streams[0]->codec;
			//return ps->bit_rate;
			return enc->time_base.num;
			

		}
		else
			return -1;			
	 } 
	 else 
		return -1;	
	
}

int bitrate(char *path)
{

	FILE *file = fopen(path,"r");
	if( file ) 
	{
		fclose(file);
		av_register_all();
		avcodec_register_all();
		AVFormatContext *ps=NULL;
		// oneiric ffmpeg
		//int ret=avformat_open_input(&ps,path,NULL,NULL);
		int ret=av_open_input_file(&ps,path,NULL,0,NULL);
		//printf("avformat_open_input ret:%i\n",ret);
		if(ret==0)
		{
			av_find_stream_info(ps);
			return ps->bit_rate;
		}
		else
			return -1;			
	 } 
	 else 
		return -1;
}

int res_x(char *path)
{

	FILE *file = fopen(path,"r");
	if( file ) 
	{
		fclose(file);
		av_register_all();
		avcodec_register_all();
		AVFormatContext *ps=NULL;
		// oneiric ffmpeg
		//int ret=avformat_open_input(&ps,path,NULL,NULL);
		int ret=av_open_input_file(&ps,path,NULL,0,NULL);
		//printf("avformat_open_input ret:%i\n",ret);
		if(ret==0)
		{
			av_find_stream_info(ps);
			AVCodecContext *enc = ps->streams[0]->codec;
			
			//return ps->bit_rate;
			return enc->width;
		}
		else
			return -1;			
	 } 
	 else 
		return -1;
}

int res_y(char *path)
{

	FILE *file = fopen(path,"r");
	if( file ) 
	{
		fclose(file);
		av_register_all();
		avcodec_register_all();
		AVFormatContext *ps=NULL;
		// oneiric ffmpeg
		//int ret=avformat_open_input(&ps,path,NULL,NULL);
		int ret=av_open_input_file(&ps,path,NULL,0,NULL);
		//printf("avformat_open_input ret:%i\n",ret);
		if(ret==0)
		{
			av_find_stream_info(ps);
			AVCodecContext *enc = ps->streams[0]->codec;
			//return ps->bit_rate;
			return enc->height;
		}
		else
			return -1;			
	 } 
	 else 
		return -1;
}

int main(int args,char* argv[])
{
	printf("Bitrate=%d\n",bitrate("/tmp/downvideo"));
	printf("x=%d y=%d\n",res_x("/tmp/downvideo"),res_y("/tmp/downvideo"));
	return 0;
}