厦门莫格电气自动化有限公司销售ABBSPNIS21，欢迎来电咨询！​SPNIS21SPNIS21您迈开询价的一小步，我还您成功的一大步。./应用2-捕获USB摄像头输入图像并进行H.264编码后保存为MKV视频文件//首先同样在iMX6上面通过命令行先测试好要使用的pipeline，如下：--------------------$gst-launch-1.0imxv4l2srcdevice=/dev/video3!'video/x-raw,width=1280,height=720,format=(string)YUY2'!videoconvert!vpuenc_h264!matroskamux!filesinklocation=v--------------------//后面的程序和上面应用1是类似的方法配置./应用3-读取上面第二种保存的视频文件并播放显示在桌面//首先同样在iMX6上面通过命令行先测试好要使用的pipeline，如下：--------------------gst-launch-1.0filesrclocation=vtypefind=true!matroskademux!vpudec!imxv4l2sinkoverlay-width=640overlay-height=480--------------------//后面的程序基本上和上面应用1是类似的方法配置，只是有一个元件需要注意，就是”matroskademux”，通过”gst-inspect”查看可以得知其sinkpad是根据src数据情况动态产生的，这样导致在上面测试piepeline的时候没有问题，但是做C程序开发的时候就需要我们来处理这个事件，因此我们添加了”on_pad_added”函数，并在main函数中调用”g_signal_connect”函数来动态链接pipeline中的demux元件和decoder元件。./main函数***后通过”gst_element_set_state”函数playpipeline，并通过”g_main_loop_run”函数开始循环。c).测试上述c程序代码运行请见如下：./应用1：--------------------------------root@apalis-imx6:~#./gstest1/dev/video3[3689.676941]ERROR:v4l2capture:sl***enotfound!V4L2_CID_HUE[3689.682806]ERROR:v4l2capture:sl***enotfound!V4L2_CID_HUE[3689.688697]ERROR:v4l2capture:sl***enotfound!V4L2_CID_HUE======IMXV4L2SRC:4.1.4buildonApr10201702:13:12.============IMXV4L2SINK:4.1.4buildonApr10201702:13:12.======display(/dev/fb0)resolutionis(1920x1080).Runningv4l2sinkneedallocate3buffers.--------------------------------TD15-2500-58719-320-587710-587782711-K3A17L11LA7133-4AA601785-V40LA20B-2902-04111746-A71746-C91746-OW161756-L631770-CD11771-OVN1771-P6R1771-SDN1771-VHSCMVI56-MCMIC693CMM3216SN1118-0NK00-0AA2IC695CHS012IC694BEM3311500-16SN1146-1AB00-0BA1505-4632505-6108B505-6660505-6851A505-6851B545-1106555-11041305-BA03A6ES7307-1EAOO-OAAO6ES7321-1BL00-OAAO6ES7322-1BL00-OAAO6ES7331-7KFO2-OABO6ES7332-5HD01-OABO6ES7351-2AG10-OABO6ES7953-8LG20-OAAO2711P-T15C6A1A06B-6089-H1026EV3053-0DC6SC6120-0FE00A06B-6130-H002VRDM31117/50140CPU53414A140CRA93100140XBP01000PTQ-PDPMV1140ACI04000140CPS11420140CRA93200140DAI75300140DRA84000TPC-2710PC2-CPU1746-IB161746-NI81746-OB6EI1746-P21747-L553MC-4/11/03/4001336-MOD-KB0101203-CN16***6671-5AE10-0AX06SN1114-0NB01-0AA16SN1123-1AA00-0LA3AO801CI801DI801DO801DSAO120ADSBC176DSDI110DSDO115ADSTA131DSTD150AXLW-3720ADS200LDCCH1ANADSDI110A1769-IF4XOF21769-IQ16/A1769-L32C1769-OB161769-SDNA06B-6096-H206DXE-490CKPS-60/20-ESCKSD1-08KSD1-32KSD1-485X00105G07SGDV-7R6A01ASGSV-10ADA61***1A-40CDR-A-V1IC200GBI001IC200PWR002DIC693CMM311IC693CPU374IC693PW***17MF1564-3CE00-1AA17NG3211-0NN00CIMR-08AX3-1002JAMSC-C8610140ACI03000140ACI04000140ACO13000140CPS11420140CPU65150140DDI35300140DDI84100140DDO35300140DDO84300140XBP01600140XTS0020035111C31194G011C31197G01A06B-6066-H244A06B-6130-H0021756-L55M16QPI31200S2P-BPMES-09A24DSO6012ALLS8040P6015A990NAD23000PB-IF-1MSMAC112C-0-HD-2-C/130-A-16SC9837-0KA011756-BABL-MP500-20SD1756-0B321756-IB321756-IF161756-L611756-OF41756-OF6CI1756-OF81784-PCICS1794-ACN151794-IB321794-OB161794-OB32PPC-A984-1455304-MBP-PDPMPTQ-PDP-MV11336F-BRF30-AE-EN1336F-BRF75-AE-EN1336-MOD-KB0051336-MOD-KB0101336S-BRF50-AA-ENPCI-6071E57***2357***3557***93S-67106S-671071746-HSRV1746-OW161747-L5411756-ENBT1756-IF81769-L35E1783-MS10T1785-L40E6SN1118-0DM13-0AA1140DDI84100CVT012.2AQ1761-NET-DNI490NRP95400MA-0185-100MA-0186-100ATE150-7DMG95DSS2-1AS-BDEP-208PC-A984-1452711P-T6C20D2711P-T7***D12711-T5A16L16DS1412-8RR6DS1717-8RR6DS1723-8BBMAC071C-0-NS-2-C/095-A-0/MAC071C-O-JS-4-C/095-A-ZNWBM85C002ACS-BRK-CACS-BRK-D1747-L541FX2N-128MR-001FX2N-16EXFX2N-232-BDFX2N-32ERFX2N-80MR-0011756-ENBAM2-AA06B-0372-B175FMI51-A1BTDJB1A1APKR251（PTR26000）PKR251（PTR26001）1LBBTAD102/2/16/16***1A-40CDR-A-V1TSXMBP100490NRP9540020F1ANC170JN0NNNNNIEPDS01)