rtthread实现rtsp推流h264

参考开源项目中 https://github.com/Yohoa/IoT_Camera/tree/master  rtsp.c rtsp.h 源码文件。

rtsp调用步骤：

1. struct rtsp_server_context *g_rtsp_server = rtsp_start_server(RTP_TRANSPORT_UDP, port);

2. rtp_push_data(g_rtsp_server, spsPpsSt.sps_data, spsPpsSt.sps_len, 0);//sps data

3. rtp_push_data(g_rtsp_server, spsPpsSt.pps_data, spsPpsSt.pps_len, 0);//pps data

4. rtp_push_data(g_rtsp_server, g_stream_buf, dataLen, pts);//h264 venc data

5. rtsp_stop_server(g_rtsp_server);

线程若崩溃时注意调整RTSP_THREAD_STACK_SIZE大小。

以下代码解析SPS、PPS数据(以00 00 00 01作为起始标志)

SpsPpsInfo len=28

00 00 00 01 67 4d 00 33 96 54 03 c0 11 2f 2c dc 14 18 14 08 (SPS)

00 00 00 01 68 ee 3c 80 (PPS)

-----------------------------------------------

typedef struct __SpsPpsInfoSt{

    unsigned char *vps_data;

    int vps_len;

    unsigned char *sps_data;

    int sps_len;

    unsigned char *pps_data;

    int pps_len;

}SpsPpsInfoSt;

int DecodeSpsPpsInfo(VencHeaderData *pVencheader, SpsPpsInfoSt *pSpsPpsSt, int isH265){

    unsigned char gap[] = {0, 0, 0, 1};

    memset(pSpsPpsSt, 0, sizeof(SpsPpsInfoSt));

    pSpsPpsSt->vps_data = pVencheader->pBuffer;

    pSpsPpsSt->vps_len = 0;

    if(isH265){

        unsigned char *tmp = memmem(pSpsPpsSt->vps_data + 4, pVencheader->nLength - 4, gap, sizeof(gap));

        if(tmp == NULL){

            return -1;

        }

        pSpsPpsSt->vps_len = tmp - pSpsPpsSt->vps_data;

    }

    pSpsPpsSt->sps_data = pSpsPpsSt->vps_data + pSpsPpsSt->vps_len;

    pSpsPpsSt->sps_len = 0;

    {

        unsigned char *tmp = memmem(pSpsPpsSt->sps_data + 4, pVencheader->nLength - 4 - pSpsPpsSt->vps_len, gap, sizeof(gap));

        if(tmp == NULL){

            return -2;

        }

        pSpsPpsSt->sps_len = tmp - pSpsPpsSt->sps_data;

    }

    pSpsPpsSt->pps_data = pSpsPpsSt->sps_data + pSpsPpsSt->sps_len;

    pSpsPpsSt->pps_len = pVencheader->nLength - pSpsPpsSt->vps_len - pSpsPpsSt->sps_len;

    {

        int i = 0;

        printf("vps data[%d]:", pSpsPpsSt->vps_len);

        for(i = 0; i < pSpsPpsSt->vps_len; i++){

            printf("%02x ", pSpsPpsSt->vps_data[i]);

        }

        printf("\n------------------\n");

        printf("sps data[%d]:", pSpsPpsSt->sps_len);

        for(i = 0; i < pSpsPpsSt->sps_len; i++){

            printf("%02x ", pSpsPpsSt->sps_data[i]);

        }

        printf("\n------------------\n");

        printf("pps data[%d]:", pSpsPpsSt->pps_len);

        for(i = 0; i < pSpsPpsSt->pps_len; i++){

            printf("%02x ", pSpsPpsSt->pps_data[i]);

        }

        printf("\n------------------\n");

    }

    return 0;

}