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嵌入式开发之davinci--- 8127 中camer 和 capture link 的区别

(1)camera link

(2)capture link

(3)两者区别

 

(1)camera link 走的是isp iss link采集的得到的数据,适用于ipnc 框架

(2)capture link 走的是vpss 里面的vip0 a,b vip1 a,b。适用于dvr,底层内核驱动是v4l2,在ti81xx_vpss.c中有代码,路径:\\192.168.0.144\Share\opt\exp_ipnc3.5\Source\ti_tools\ipnc_psp_arago\kernel\arch\arm\mach-omap2下

很经典啊,可以直接打开video0 设备取数据 ,然后用fb进行显示

16 bit decoders are present on the Port A of VIP0 and VIP1 instances. Which
represents the VIP0 and VIP2 instances in software. While Port B of VIP0 and
VIP1 are represented by VIP1 and VIP3 instances. On these two instances no
decoders are present.

* This is a sample for loopback application. This application captures through
* V4L2 capture driver on TVP7002 input, converts it to RGB using
* HDVPSS capture color space converter and displays the captured content
* on FBDEV

http://www.deyisupport.com/question_answer/dsp_arm/davinci_digital_media_processors/f/39/t/23822.aspx ti

http://www.deyisupport.com/question_answer/dsp_arm/davinci_digital_media_processors/f/39/p/24116/85074.aspx 双port 不能同时采集问题

http://blog.csdn.net/zhouzhuan2008/article/details/8608522

http://blog.csdn.net/linglongyouzhi/article/details/2846492

http://blog.csdn.net/guo8113/article/details/20149191

嵌入式开发之davinci--- 8127 中camer 和 capture link 的区别