使用ffmpeg将h264视频文件转Mp4格式保存

其实具体的代码ffmpeg的官方demo做的功能已经很完善了，自己也就修修补补，下面直接上代码

#include "stdafx.h"
#include <iostream>
#include <stdio.h>
#include <tchar.h>

//这里是个坑，不加extern "C"，死活编译不过
extern "C"
{
	#include "libavformat/avformat.h"
};


using namespace std;



 
int _tmain(int argc, _TCHAR* argv[])
{
	AVOutputFormat *ofmt = NULL;
	//创建输入AVFormatContext对象和输出AVFormatContext对象
	AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;
	AVPacket pkt;
	const char *in_filename;
	int ret, i;
	int stream_index = 0;
	int *stream_mapping = NULL;
	int stream_mapping_size = 0;

	in_filename  = “C:\\test.h264”;

	//产生对应的录像文件名
	SYSTEMTIME systime;
	GetLocalTime(&systime);
	char cTime[128];
	sprintf(cTime,"%4d/%02d/%02d %02d:%02d:%02d.%03d\n",
		systime.wYear,systime.wMonth,systime.wDay,systime.wHour,
		systime.wMinute, systime.wSecond,systime.wMilliseconds);
	char ou