ABBSPSET01◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆【厦门莫格电气自动化有限公司】【XiamenMoggetElectricAutomationCo.,Ltd】【当天顺丰发货，欢迎上门验货，不要犹豫，不要徘徊，错失良机，后悔晚矣】【来电咨询：雷(女士）】【销售热线请点上面↑↑↑↑↑↑↑↑↑↑】【传真：0592-6514751（请备注：雷琳收）】【邮箱：1982497648@qq.com】公司主营AB、本特利、黑马、施耐德、GE、ABB【DSQC系列】ICS英维思西门子yokogawa横河霍尼韦尔福克斯波Rosemount（罗斯蒙特）德国EPRO（飞利浦）ENTEK（恩泰克）VIBRO-METER（韦伯）Yaskawa（安川）Motorola（摩托罗拉）BoschRexroth（博世力士乐）Woodward（伍德沃德）等品牌◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆全新原装现货：SPSET01SPSET01SPSET01使用QML语言进行QT应用程序开发可以将界面开发和逻辑控制分开，提高应用的开发周期和灵活性；另外对于多媒体应用非常重要的一点是，基于QML/QTQuick的应用程序可以直接调用GPU进行加速，这大大提高了多媒体应用在嵌入式系统环境下的处理效率和资源占用，因此本文就基于QML和QTMultimedia组件介绍多媒体应用开发。本文所演示的平台来自于ToradexApalisiMX6ARM嵌入式平台，这是一个基于NXPiMX6ARM处理器，支持双核/四核Cortex-A9。2).准备a).ApalisiMX6ARM核心版配合Ixora载板，连接调试串口UART1到开发主机方便调试。b).ApalisiMX6系统使用基于OpenEmbedded框架重新编译的集成Qt5.9支持的ToradexLinuximagereleaseV2.8b2版本以及对应的SDK。可以结合这里的说明自行编译，需要修改的nf文件如下，image更新方法请参考这里。-------------------------------IMAGE_INSTALL_append="gstreamer1.0-plugins-bad-*gstreamer1.0-plugins-ugly-*gstreamer1.0-libav"PACKAGECONFIG_append_pn-qtmultimedia="gstreamer"-------------------------------c).关于开发主机SDK安装和Qtcreator开发环境的配置请参考这里。d).演示程序使用的LCD为10inch18bitLVDS屏幕，请参考这里修改配置uboot显示分辨率。e).如果需要，可以打开QTdebuglogging./打开所有debuglogging-------------------------------$exportQT_LOGGING_RULES=*.debug=true-------------------------------./打开multimedia相关debuglogging-------------------------------$exportQT_LOGGING_RULES=*.debug=true-------------------------------f).本文演示应用程序分为两个部分，对应为两个页面；应用启动后默认页面为视频播放（VideoPlayer）页面，通过点击按钮可以切换为摄像头捕获页面（CameraCapture）页面。下面就逐一进行一些说明。3).QT演示程序开发–VideoPlayera).源代码和运行效果如下：./代码main.qml-https:///simonqin09/QtQMLMultimedia/blob/master/main.qmlmain.cpp-https:///simonqin09/QtQMLMultimedia/blob/master/main.cppb).具体要点说明如下./由于QTMultimedia组件在底层也是调用GstreamerPlaybin元件进行媒体播放操作，因此在编程之前，首先可以直接使用Gstreamerpipeline在嵌入式系统先验证下，确保媒体可以正常播放，没有解码器缺失的情况。-------------------------------$gst-launch-1.0playbinuri=file:///home/root/ready-player-one-trailer-2_h720p.mov-------------------------------./main.cpp文件用于识别输入变量并通过下面代码将其传递给QML来指定媒体文件位置。-------------------------------SIMATICS7-400CPUPLC维修西门子S495UPLC6ES5095-维修TSXCBA008TSXCBA008SchneiderexpansionI/Obuscable2711-T10C15A·BPanelViewStandard1000TerminalsTSXP47400TSXP47400TSX47/67/87PROCESSORB＆RIP151IP1613IP151.60-23IP161.60-16ES7223-1HF22-0XA06ES7223-1HF22-0XA0DIGITALI/OEM223,PHOENIXCONTACTINTERBUS-SIBSPLC5DSC/I-T27190276ES5700-2BA116ES5700-2BA11TB1/DCTERMINALBLOCK(ET200B6AV3505-1FB016AV3505-1FB01OP5/A1OPERATORPANELVISXINC0080-0293ASSYPCBSYSTEMI/O2711-KC1FALLENBRADLEYPanelView1200OperatorTerminals6ES5451-2BA116ES5451-2BA1116DAELECTRONICSMODULE6AV3627-1QK00-2AX06AV3627-1QK00-2AX0TOUCHPANELTP27-6BANNERPhotoelectricswitchQ85VR3R31651FanucA06B-6047-H050PowerSupply-PartofMachine6ES5431-2BA116ES5431-2BA1116DEELECTRONICSMODULETSXLES20TSXLES20SchneiderTelemecaniqueI/OMODULENP1AXH4-MRFUJIAnaloginputmodule4channelE6B2-CWZ6C500P/RRotaryEncoderE6B2CWZ6CC200H-ASC02ASCIIUnit-ExcellentCondition6ES5951-7ND216ES5951-7ND21951FPOWERSUPPLYUNITA5E00010352SIMATICPC,SPAREPARTFORBOXPC6206ES7132-0BH01-0XB06ES7132-0BH01-0XB0SIMATICDP,2711P-B15C6B11500Keypad&TouchScreenTerminalsIBILAO2/U/BPNO:2732732PHOENIXCONTACTAnalogOutputModTSXDST3292TSX-DST-3292,Interface32sorties24VCCC98043-A7007-L54SIMOREG6RA24ResistivePlateIBIL24DI4NO:2726214PHOENIXCONTACTAnalogOutputModulTSXDST1686TSXDST1686WAYOUTPUTMODULEMODICONTSXCOMPACTDAP216/AS-BDAP-216OUTPUTmodulesTSXDET3242TSXDET3242INPUTMODULES6ES5453-4UA126ES5453-4UA12453DIGITALOUTPUTMODULEC98043-A1663-L11-08DCconverterdriveplate6GT2002-0AB006GT2002-0AB00MOBYCHANNELMODULECM422F.6ES7131-0BH00-0XB06ES7131-0BH00-0XB0SIMATICDP,ELECTRON6ES5430-4UA126ES5430-4UA12430DIGITALINPUTMODULEIndramatDEA4.1MDEA4.1M109-0852-33B09-06I/OInterfaceC79451-Z1531-K1C79451-Z1531-K1CONVERTERMONOCHR.F.PG7206ES7193-0CD40-0XA06ES7193-0CD40-0XA0SIMATICDP,TB86DS1213-8AA6DS1213-8AAINDUCTIVECOUPLER2711P-RDB15C1500KeyboardandtouchscreenmoduleIndramatDEA5.1MDEA5.1M109-0852-33B09-06I/OMODULESF3SV64YOKGGAWAUNIWIRESYSTEMMODULES6ES7193-0CA10-0XA06ES7193-0CA10-0XA0SIMATICDP,6DS1106-8BA6DS1106-8BACOMPARATORMODULE26RY1243-0DA01C98043-A1601-L4GATING+SV(POWER-INTERFACE)2711P-RN6PanelViewPlus700-1500CommunicationModule6ES5947-3UA216ES5947-3UA21CPU947/947FORS5-155UPCF3WD64-3FYOKOGAWAI/Omodules6DS1106-8AA6DS1106-8AACOMPARATORMODULE1A20B-0008-054FanucI/OCommunicationCard6ES5947-3UA226ES5947-3UA22CPU947F.S5-155UPLC2711P-RP1PanelViewPlus700-1500Logiccontrolmodule6ES7193-0CD40-7AX06ES7193-0CD40-7AX0支架XBTH021010XBTH021010OperatorInterfacePanelF3WD32-3FDCIN/TRDCINPUTTRANSISTOROUTPUTmodules6ES5943-7UB116ES5943-7UB11CPU943FORS5-115UPLC6ES7193-0CA40-0XA06ES7193-0CA40-0XA0SIMATICDP,6ES5700-8MA226ES5700-8MA22BUSMODULEF.S5-90UC98043-A1604-L15SIMOREG6RA24AccessoriesBerghofKS800-RS940748000001940748000001C98043-A1604-L23SIMOREG6RA24RCabsorptionboardPilzPSSPS301050POWERSUPPLY3BP155.41B&R2005BaseModulesMX110-UNV-M10YOKOGAWAUniversalInputModules6GK1141-3AT006GK1141-3AT00SIMATICNET,CP1413S5-DOS/M6ES5393-0UA116ES5393-0UA11393OPERATORPANEL6SE5175-0AB02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