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pans

2019-03-30 25928e3093a7c0257128192d7785ec3f74e89e81

 QiaoJiaSystem/GB28181DecoderModel/FFmpegDecoderJPG.cpp

@@ -45,7 +45,9 @@
}

BASICGB28181::FFmpegDecoderJPG::~FFmpegDecoderJPG() {
    //清空队列
    while (m_rtpQueue.count_queue()) {
        //#todo delete frameBuffInfo*
        m_rtpQueue.popNotWait();
    }

@@ -75,10 +77,9 @@
    }

#ifdef TestCode
        DBG(" m_rtpQueue.push before ");
        DBG(" m_rtpQueue.push befores ");
#endif
        m_rtpQueue.
        push(info);
        m_rtpQueue.push(info);
#ifdef TestCode
        DBG(" m_rtpQueue.push after ");
#endif
@@ -96,10 +97,11 @@
    do {

//        DBG(" m_rtpQueue.pop before ");
        //从缓存中获取buffinfo
        frameBuffInfo *buffinfo = fFmpegDecoderJPG->m_rtpQueue.pop();
//        DBG(" m_rtpQueue.pop after ");
        diff = len - buffinfo->buffLen;
//        printf("bufsize is :%ld,len is :%ld, datalen:%d \n", bufsize, len, buffinfo->buffLen);

        //帧长大于bufsize
        if (diff < 0) {
//            DBG("/帧长大于bufsize" << diff);
@@ -130,7 +132,7 @@
        delete[] buffinfo->buff;
        delete buffinfo;
    } while (diff > 0);
    //#todo 触发信号

//    DBG("emitSigal(\"read_dataOk\") begin");
//    gSignalLock.emitSigal("read_dataOk");
    fFmpegDecoderJPG->m_readData = true;
@@ -151,12 +153,14 @@
//    avformat_network_init();
        p_this->ic = avformat_alloc_context();

        //创建ffmpeg使用的内存空间
        p_this->iobuffer = (unsigned char *) av_malloc(p_this->m_buf_size);
        if (!p_this->iobuffer) {
            ERR("av_malloc: err======" << p_this->m_camIdx);
            p_this->m_running = false;
            continue;
        }
//     使用回调函数和内存块创建 AVIOContext
        p_this->avio = avio_alloc_context(p_this->iobuffer, p_this->m_buf_size, 0, p_this, p_this->read_data, NULL,
                                          NULL);
        if (!p_this->avio) {
@@ -267,7 +271,7 @@

//        BASICGB28181::avframe_to_cvmat(frame).copyTo(p_this->m_image);
            p_this->m_image = std::move(BASICGB28181::avframe_to_cvmat(p_this->frame));

//            将i帧保存为快照
            if (p_this->m_SnapshotNotSaveRet && (p_this->pkt.flags & AV_PKT_FLAG_KEY)) {
                try {
                    std::string strNewName = "./";
@@ -304,7 +308,7 @@
#ifdef TestCode
                DBG("emitSigal(\"DecoderImageOK\") begin");
#endif
            //触发信号
            //触发上层信号
            gSignalLock.emitSigal(p_this->m_camIdx + "DecoderImageOK");
//#ifdef TestCode
//        DBG("emitSigal(\"DecoderImageOK\") after");
@@ -349,6 +353,7 @@
        }
        m_camIdx = camIdx;
        DBG("BareFlowDecoderThd camIdx : " << camIdx);
//        启动解码线程
        std::thread t_BareFlowDecoder(BareFlowDecoderThd, this);
        t_BareFlowDecoder.detach();
    );