使用ffmpeg获取视频流后如何封装存储成mp4文件

int main(int argc,char *argv[])

02

{

03	AVFormatContext *pFormatCtx;

04	int i,videoStream;

05	AVCodecContext *pCodecCtx;

06	AVPacket packet;

07	//H264Context *h;

08	int type=0;

09	//Open video file

10	char rtsp[100]="";

11	char filename[150]="";

12	char *p=NULL;

13	char camid[6]="";

14	char log[100]="";

15	char new_file[200]="";

16	char command[200]="";

17	char file_jpg[200]="";

18

19	if(argc!=3)

20

{

21

exit(1);

22

}

23

24	strcpy(rtsp,argv[1]);

25	strcpy(filename,argv[2]);

26	p=strstr(filename,"cam");

27	memcpy(camid,p,5);

28

29	signal(SIGTERM,recv_signal);

30	signal(SIGUSR1,recv_signal);

31	signal(SIGHUP,recv_signal);

32	signal(SIGSEGV,recv_signal);

33	strcpy(File_Name,filename);

34

35	//Register all formats and codecs

36	av_register_all();

37	avformat_network_init();

38

39	if(av_open_input_file(&pFormatCtx,rtsp,NULL,0,NULL)!=0)

40

{

41	sprintf(log,"%s [%s] %s","The ",rtsp," stream open error ");

42	write_log(camid,log);

43

exit(1);

44

}

45

46	//Retrieve stream information

47	if(av_find_stream_info(pFormatCtx)<0)

48

{

49	sprintf(log,"%s","Video Flow information check error ");

50	write_log(camid,log);

51	return -1;

52

}

53

54	//Dump information about file onto standard error

55	av_dump_format(pFormatCtx,0,rtsp,0);

56

57	//Find the first video stream

58	videoStream=-1;

59	for(i=0;i<pFormatCtx->nb_streams;i++)

60

{

61	if(pFormatCtx->streams[i]->codec->codec_type==AVMEDIA_TYPE_VIDEO)

62

{

63	videoStream=i;

64

break;

65

}

66

}

67

68	if(videoStream==-1)

69

{

70	sprintf(log,"%s","Didn't find a video stram ");

71	write_log(camid,log);

72	return -1;

73

}

74

75	pCodecCtx=pFormatCtx->streams[videoStream]->codec;

76	//open file

77	FILE *fp=NULL;

78	//char *filename="/home/MEDIA/project/linux/test.mp4";

79

80	if((fp=fopen(filename,"wb"))==NULL)

81

{

82	sprintf(log,"%s%s",filename," open failed ");

83	write_log(camid,log);

84

exit(1);

85

}

86	/*这里打开了一个test.mp4的文件，下面怎么封装存储就不知道了，请各位大哥指导！帮助指点下封装成mp4文件的主要函数部分*/