小技巧：用CxImage將從攝像頭獲取的圖像原始數據轉成JPG，然後通過DDS發送出去

覺得沒什麼比代碼更清楚了。直接“翠花，上代碼”.

int VideoPublisher_T::publishVideo(long lw,long lh,ACE_UINT8 * dibData, long size)
{
    ACE_UINT8* jpgImageData = 0;
    long jpgImageDataSize = 0;
    CxImage image;
    Video::FrameDataWriter_var dw =
        Video::FrameDataWriter::_narrow(this->dataWriter_.in());
    if (CORBA::is_nil(dw.in()))
    {
        ACE_ERROR_RETURN((LM_ERROR,"(%t|%T) narrow frame data writer/n"),-1);
    }
    // bytes alignment
    ACE_UINT32 bytesPerLine = 4 * ((lw * 24 + 31)/32);
    // Convert original RGB data to Image
    image.CreateFromArray(
        (unsigned char *)dibData,
        lw,
        lh,
        24,
        bytesPerLine,
        false);
    image.Encode(jpgImageData,jpgImageDataSize,CXIMAGE_FORMAT_JPG);
    image.SetJpegQuality(24);

    Video::Frame frame;
    frame.frameId = 0;
    frame.timestamp = ::getTimestamp();
    frame.deviceId = OPTIONS::instance()->getDeviceId();
    frame.type = Video::IT_JPG;
    frame.deviceInfo = CORBA::string_dup(this->statMsg_);
    frame.image.length(jpgImageDataSize);
    ACE_OS::memcpy(frame.image.get_buffer(),(const void*)jpgImageData,jpgImageDataSize);
    image.FreeMemory(jpgImageData);

    DDS::ReturnCode_t ret = dw->write(frame, DDS::HANDLE_NIL);
    if (ret != DDS::RETCODE_OK)
    { 
        ACE_ERROR_RETURN((LM_ERROR,"(%t|%T) data writer/n"),-1);

    }

    return 0;
}