video analysis2.0拆分,ffmpeg封装go接口库
zhangmeng
2023-12-26 18a05d269516a5e33d8460291c2f93e73d95adce
csrc/thirdparty/gb28181/include/PsToEs.hpp
@@ -43,16 +43,22 @@
    }
    T pop() {
        struct timespec now, end;
        clock_gettime(CLOCK_MONOTONIC, &now);
        static uint64_t waitS = 12; // wait
        end.tv_sec = now.tv_sec + waitS;
        end.tv_nsec = now.tv_nsec;
        struct timespec to;
        clock_gettime(CLOCK_MONOTONIC, &to);
        static uint64_t waitMS = 620; // wait
        uint64_t sec = waitMS / 1000;
        uint64_t nsec = (waitMS % 1000) * 1e6;
        to.tv_sec = to.tv_sec + sec;
        nsec += to.tv_nsec;
        sec = nsec / 1000000000;
        nsec = nsec % 1000000000;
        to.tv_sec += sec;
        to.tv_nsec = nsec;
        // printf("======>>wait stream data\n");
        pthread_mutex_lock(&mtx);
        while(q.empty()){
            if(pthread_cond_timedwait(&cond, &mtx, &end) == ETIMEDOUT){
            if(pthread_cond_timedwait(&cond, &mtx, &to) == ETIMEDOUT){
                printf("======>>timeout quit\n");
                break;
            }
@@ -109,8 +115,90 @@
   int buffLen;
} frameBuffInfo;
typedef enum
{
    E_VIDEO_STREAM_NONE     = -1,
    E_VIDEO_STREAM_H264     = 0,
    E_VIDEO_STREAM_MPEG2    = 1,    // MPEG4
    E_VIDEO_STREAM_MPEG4    = 2,    // MPEG4
    E_VIDEO_STREAM_SVAC     = 3,    // SVAC
    E_VIDEO_STREAM_3GP      = 4,    // 3GP
    E_VIDEO_STREAM_H265     = 5,    //H265
}VideoStreamType_E;
class GB28181API{
public:
    static int capturePic(void *opaque, char *buf, int *bufsize, const int tt) {
        GB28181API *_this = (GB28181API *) opaque;
        int len = 0;
        *bufsize = 0;
        int ttt = 0;
        do {
            if (ttt > tt) return 0;
            ttt++;
            //从缓存中获取buffinfo
            if (_this->m_rtpQueue.count_queue() == 0) {
//                printf(" count_queue == 0 \n");
                usleep(200000);
                continue;
            }
            frameBuffInfo *buffinfo = _this->m_rtpQueue.pop();
            if (buffinfo == nullptr) {
                printf(" buffinfo == nullptr \n");
                return 0;
            }
////////////////////////////////////////////////////////
            FILE* fpJpg = NULL;
            char fileJpgName[32] = "./tmpCaptureJpg.jpg";
            char fileIFrameName[32] = "./tmpCaptureX264IFrame";
            char cmd[512] = {0};
            for(int i = 0; i < 10 * 25; i++){
                if (!buffinfo){
                    buffinfo = _this->m_rtpQueue.pop();
                }
                if (!buffinfo) continue;
                auto fpIframe = fopen(fileIFrameName, "wb+");
                fwrite(buffinfo->buff, buffinfo->buffLen, 1, fpIframe);
                fflush(fpIframe);
                fclose(fpIframe);
                memset(cmd, 0, 512);
                sprintf(cmd, "ffmpeg -i %s -y -f image2 -ss 00:00:00 -vframes 1 %s >/dev/null", fileIFrameName,
                        fileJpgName);
                int rr = system(cmd);
                delete[] buffinfo->buff;
                delete buffinfo;
                buffinfo = nullptr;
                fpJpg = fopen(fileJpgName, "rb");
                if (fpJpg) {
                    break;
                }
            }
///////////////////////////////////////////////////////////
            fseek(fpJpg, 0, SEEK_END);
            len = ftell(fpJpg);
            fseek(fpJpg, 0, SEEK_SET);
            *bufsize = fread(buf, sizeof(char), len, fpJpg);
            fclose(fpJpg);
            memset(cmd, 0, 128);
            sprintf(cmd, "rm %s %s >/dev/null", fileIFrameName, fileJpgName);
            system(cmd);
        } while (*bufsize == 0);
        return *bufsize;
    }
   GB28181API(/*string rtspUrl*/){
//      handle = addCamera(rtspUrl);
   }
@@ -127,9 +215,10 @@
      deleteCamera();
   }
    static const int keep_queue_count = 126;
   bool pushInfo(unsigned char *data, int datalen) {
      while(m_rtpQueue.count_queue() > 120){
      while(m_rtpQueue.count_queue() > keep_queue_count){
            auto p = m_rtpQueue.popNotWait();
            if (p){
                delete[] p->buff;
@@ -160,7 +249,7 @@
         frameBuffInfo *buffinfo = _this->m_rtpQueue.pop();
//         printf(" m_rtpQueue.pop after \n");
            if(buffinfo != nullptr){
         diff = len - buffinfo->buffLen;
             diff = len - buffinfo->buffLen;
            }else{
                return 0;
            }
@@ -175,7 +264,7 @@
            info->buff = new unsigned char[buffinfo->buffLen - len]{};
            memcpy(info->buff, buffinfo->buff + len, buffinfo->buffLen - len);
            while(_this->m_rtpQueue.count_queue() > 120){
            while(_this->m_rtpQueue.count_queue() > keep_queue_count){
                    auto p = _this->m_rtpQueue.popNotWait();
                    if (p){
                        delete[] p->buff;
@@ -204,76 +293,6 @@
       return bufsize;
   }
    static int capturePic(void *opaque, char *buf, int *bufsize, const int tt) {
        GB28181API *_this = (GB28181API *) opaque;
        int len = 0;
        *bufsize = 0;
        int ttt = 0;
        do {
           if (ttt > tt) return 0;
           ttt++;
            //从缓存中获取buffinfo
            if (_this->m_rtpQueue.count_queue() == 0) {
//                printf(" count_queue == 0 \n");
                usleep(200000);
                continue;
            }
            frameBuffInfo *buffinfo = _this->m_rtpQueue.pop();
            if (buffinfo == nullptr) {
                printf(" buffinfo == nullptr \n");
                return 0;
            }
////////////////////////////////////////////////////////
            FILE* fpJpg = NULL;
             char fileJpgName[32] = "./tmpCaptureJpg.jpg";
            char fileIFrameName[32] = "./tmpCaptureX264IFrame";
            char cmd[512] = {0};
            for(int i = 0; i < 10 * 25; i++){
               if (!buffinfo){
                  buffinfo = _this->m_rtpQueue.pop();
               }
               if (!buffinfo) continue;
               auto fpIframe = fopen(fileIFrameName, "wb+");
               fwrite(buffinfo->buff, buffinfo->buffLen, 1, fpIframe);
               fflush(fpIframe);
               fclose(fpIframe);
               memset(cmd, 0, 512);
               sprintf(cmd, "ffmpeg -i %s -y -f image2 -ss 00:00:00 -vframes 1 %s >/dev/null", fileIFrameName,
                       fileJpgName);
               int rr = system(cmd);
                delete[] buffinfo->buff;
               delete buffinfo;
               buffinfo = nullptr;
               fpJpg = fopen(fileJpgName, "rb");
               if (fpJpg) {
                   break;
               }
            }
///////////////////////////////////////////////////////////
            fseek(fpJpg, 0, SEEK_END);
            len = ftell(fpJpg);
            fseek(fpJpg, 0, SEEK_SET);
            *bufsize = fread(buf, sizeof(char), len, fpJpg);
            fclose(fpJpg);
            memset(cmd, 0, 128);
            sprintf(cmd, "rm %s %s >/dev/null", fileIFrameName, fileJpgName);
            system(cmd);
        } while (*bufsize == 0);
        return *bufsize;
    }
   static void streamCallBack(int datatype, int frametype, unsigned char *data, unsigned int datalen, long userdata)
   {
      GB28181API *_this = (GB28181API *)userdata;
@@ -282,17 +301,23 @@
      if(frametype == GB_VIDEO_FRAME_I){
         startFlag = true;
      }
        // printf("streamCallBack recv data len %d frametype %d\n", datalen, startFlag);
        if (_this->datatype_ < 0)
            _this->datatype_ = datatype;
      if((data != NULL) && (startFlag == true)){
            _this->pushInfo(data, datalen);
         _this->pushInfo(data, datalen);
      }
   }
   long addCamera(string &rtsp){
        int count = 0;
        while (handle == -1 && count <= 3) {
        while (handle < 0 && count <= 3) {
            count ++;
            handle = RTSPSTREAM_Open(rtsp.c_str(), streamCallBack, (long) this);
            printf("RTSPSTREAM_Open, handle:%ld \n", handle);
            usleep(20000);
        }
      return handle;
   }
@@ -304,8 +329,10 @@
      }
      handle = -1;
   }
   }
    const int getDataType(){return datatype_;}
private:
    int datatype_ = -1;
   MyQueue<frameBuffInfo *> m_rtpQueue;
   long handle = -1;
};