Qt基于RTP打包H.264

打包发送采用了两种方式 1.使用socket套接字发送RTP打包的H264 2.使用jrtplib发送RTP打包的H264 可以通过VLC或者MPlayer解码播放 详见博客：http://blog.csdn.net/caoshangpa/article/details/53009604

#include 
#include 
#include 
#include 
#include “h264.h“
#include “iostream“
#include 
#include “rtpsession.h“
#include “rtpudpv4transmitter.h“
#include “rtpipv4address.h“
#include “rtpsessionparams.h“
#include “rtperrors.h“
#include “rtppacket.h“

using namespace jrtplib;

typedef struct
{
    int startcodeprefix_len;      //! 4 for parameter sets and first slice in picture 3 for everything else （suggested）
    unsigned len;                 //! Length of the NAL unit （Excluding the start code which does not belong to the NALU）
    unsigned max_size;            //! Nal Unit Buffer size
    int forbidden_bit;            //! should be always FALSE
    int nal_reference_idc;        //! NALU_PRIORITY_xxxx
    int nal_unit_type;            //! NALU_TYPE_xxxx
    char *buf;                    //! contains the first byte followed by the RBSP
    unsigned short lost_packets;  //! true if packet loss is detected
} NALU_t;

FILE *bits = NULL;                //! the bit stream file
static int FindStartCode2（unsigned char *Buf）;//查找开始字符0x000001
static int FindStartCode3（unsigned char *Buf）;//查找开始字符0x00000001


static int info2=0 info3=0;
RTP_FIXED_HEADER *rtp_hdr;

NALU_HEADER     *nalu_hdr;
FU_INDICATOR    *fu_ind;
FU_HEADER       *fu_hdr;

//为NALU_t结构体分配内存空间
NALU_t *AllocNALU（int buffersize）
{
    NALU_t *n;

    if （（n = （NALU_t*）calloc （1 sizeof （NALU_t））） == NULL）
    {
        printf（“AllocNALU: n“）;
        exit（0）;
    }

    n->max_size=buffersize;

    if （（n->buf = （char*）calloc （buffersize sizeof （char））） == NULL）
    {
        free （n）;
        printf （“AllocNALU: n->buf“）;
        exit（0）;
    }

    return n;
}

//释放
void FreeNALU（NALU_t *n）
{
    if （n）
    {
        if （n->buf）
        {
            free（n->buf）;
            n->buf=NULL;
        }
        free （n）;
    }
}

void OpenBitstreamFile （char *fn）
{
    if （NULL == （bits=fopen（fn “rb“）））
    {
        printf（“open file error\n“）;
        exit（0）;
    }
}

//这个函数输入为一个NALU_t结构体，主要功能为得到一个完整的NALU并保存在NALU_t的buf中，
//获取他的长度，填充FIDCTYPE位。
//并且返回两个开始字符之间间隔的字节数，即包含有前缀的NALU的长度
int GetAnnexbNALU （NALU_t *nalu）
{
    int pos = 0;
    int StartCodeFound rewind;
    unsigned char *Buf;

    if （（Buf = （unsigned char*）calloc （nalu->max_size  sizeof（char））） == NULL）
        printf （“GetAnnexbNALU: Could not allocate Buf memory\n“）;

    nalu->startcodeprefix_len=3;//初始化码流序列的开始字符为3个字节

    if （3 != fread （Buf 1 3 bits））//从码流中读3个字节
    {
        free（Buf）;
        return 0;
    }
    info2 = FindStartCode2 （Buf）;//判断是否为0x000001
    if（info2 != 1）
    {
        //如果不是，再读一个字节
        if（1 != fread（Buf+3 1 1 bits））//读一个字节
        {
            free（Buf）;
            return 0;
        }
        info3 = FindStartCode3 （Buf）;//判断是否为0x00000001
        if （info3 != 1）//如果不是，返回-1
        {
            free（Buf）;
            retur

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      93550  2012-02-28 19:45  Qt RTP H264\SendH264ToVLCWithJrtplib\176144.264

     文件   25821394  2016-11-07 12:00  Qt RTP H264\SendH264ToVLCWithJrtplib\480320.264

     文件     845926  2016-01-14 15:08  Qt RTP H264\SendH264ToVLCWithJrtplib\debug\libjrtplib.dll

     文件      48394  2016-01-14 14:10  Qt RTP H264\SendH264ToVLCWithJrtplib\debug\libjthread.dll

     文件     150336  2016-11-07 15:36  Qt RTP H264\SendH264ToVLCWithJrtplib\debug\main.o

     文件     183233  2016-11-07 15:36  Qt RTP H264\SendH264ToVLCWithJrtplib\debug\SendH264ToVLCWithJrtplib.exe

     文件       2956  2016-11-04 12:32  Qt RTP H264\SendH264ToVLCWithJrtplib\h264.h

     文件       3703  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpapppacket.h

     文件       4049  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpbyepacket.h

     文件       4164  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpcompoundpacket.h

     文件      12166  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpcompoundpacketbuilder.h

     文件       3001  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcppacket.h

     文件      11786  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcppacketbuilder.h

     文件       6533  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcprrpacket.h

     文件       7359  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpscheduler.h

     文件       8306  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpsdesinfo.h

     文件      10914  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpsdespacket.h

     文件       7947  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpsrpacket.h

     文件       2811  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtcpunknownpacket.h

     文件       3561  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpaddress.h

     文件       3765  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpbyteaddress.h

     文件       3224  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpcollisionlist.h

     文件       2374  2015-11-25 14:24  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpconfig.h

     文件       1876  2011-02-02 10:45  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpdebug.h

     文件       3098  2011-02-02 10:45  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpdefines.h

     文件      11016  2011-08-29 15:43  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtperrors.h

     文件       9145  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpexternaltransmitter.h

     文件       8556  2011-08-29 15:43  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtphashtable.h

     文件       4690  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpinternalsourcedata.h

     文件       4087  2011-08-29 15:03  Qt RTP H264\SendH264ToVLCWithJrtplib\include\jrtplib\rtpipv4address.h

............此处省略69个文件信息