video analysis2.0拆分,ffmpeg封装go接口库
chenshijun
2019-07-17 0367d8e503ca5df1eae359929b8753050ccd9980
csrc/wrapper.cpp
@@ -84,11 +84,13 @@
                auto dec_ctx = in->getCodecContext();
                if(bridge_)delete bridge_;
                scale_w_ = scale_w_ == 0 || scale_w_ > dec_ctx->width ? dec_ctx->width : scale_w_;
                scale_h_ = scale_h_ == 0 || scale_h_ > dec_ctx->height ? dec_ctx->height : scale_h_;
                AVPixelFormat pix_fmt = AV_PIX_FMT_BGR24;
                bridge_ = new cvbridge(
                        dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
                        scale_w_?scale_w_:dec_ctx->width, scale_h_?scale_h_:dec_ctx->height, pix_fmt,
                        scale_f_);
                        scale_w_, scale_h_, pix_fmt, scale_f_);
    
            }
            if (!flag){
@@ -100,6 +102,50 @@
        return nullptr;
    }
    ffwrapper::FormatIn* Wrapper::init_reader_gb28181(const char* input){
            VideoProp prop;
            prop.url_ = input;
            prop.rtsp_tcp_ = true;
//           std::unique_ptr<FormatIn> in(new FormatIn(prop.gpuAccl()));
            ffwrapper::FormatIn* in(new FormatIn(prop.gpuAccl()));
           AVDictionary *avdic = prop.optsFormat();
           int flag = in->openGb28181(input, &avdic);
           if(avdic){
                logIt("ERROR:in->openGb28181(input, &avdic):flag:%d\n",flag);
              av_dict_free(&avdic);
           }
            if(flag == 0){
                if(!in->findStreamInfo(NULL)){
                    logIt("yolo can't find video stream\n");
                    return nullptr;
                }
                bool flag = true;
                if(map_workers_.find(WORKER_DECODER) != map_workers_.end()){
                    flag = in->openCodec(AVMEDIA_TYPE_VIDEO, NULL);
                    auto dec_ctx = in->getCodecContext();
                    if(bridge_)delete bridge_;
                    scale_w_ = scale_w_ == 0 || scale_w_ > dec_ctx->width ? dec_ctx->width : scale_w_;
                    scale_h_ = scale_h_ == 0 || scale_h_ > dec_ctx->height ? dec_ctx->height : scale_h_;
                    AVPixelFormat pix_fmt = AV_PIX_FMT_BGR24;
                    bridge_ = new cvbridge(
                            dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
                            scale_w_, scale_h_, pix_fmt, scale_f_);
                }
                if (!flag){
                    logIt("FormatIn openCodec Failed!");
                    return nullptr;
                }
                return in;
            }
            return nullptr;
        }
    int Wrapper::init_recorder(FormatIn *in, std::string dir, const int mind, const int maxd){
        if(!in){
@@ -135,8 +181,10 @@
    void Wrapper::run_stream_thread(){
        while(!stop_stream_.load()){
            auto in = init_reader(input_url_.c_str());
            //auto in = init_reader(input_url_.c_str());
            ffwrapper::FormatIn * in = init_reader_gb28181(input_url_.c_str());
            if (!in) {
                logIt("ERROR: init_reader_gb28181!\n");
                usleep(200000);
                continue;
            }
@@ -235,11 +283,12 @@
        pic_bgr24 pic;
        if(bridge_){
            AVFrame *frm = frame->getAVFrame();
            unsigned char *data = (unsigned char*)malloc(frm->width * frm->height * 3);
            pic.w = scale_w_;
            pic.h = scale_h_;
            unsigned char *data = (unsigned char*)malloc(pic.w * pic.h * 3);
            bridge_->copyPicture(data, frm);
            pic.data = data;
            pic.w = scale_w_ ? scale_w_ : frm->width;
            pic.h = scale_h_ ? scale_h_ : frm->height;
        }
        if(func_dec_){
            func_dec_(pic.data, pic.w, pic.h);