add the VP samples README.

Signed-off-by: kelly-du <[email protected]>

Author: kelly-du

videoprocess/README.md

@@ -0,0 +1,34 @@
+# Video Processing feature test suites
+
+
+## Introduction
+
+This folder collect a set of VP examples to exercise VA-API in
+accordance with the libva project. 
+vaapp is the basic app which you can use to check several features(CSC,scaling,
+denoise, sharpness,DeInterlace,skin tone enhancement,HSBC).
+The other sample app is the specific app just for one or two features tested.
+You can get the info from the app name, such as CSC,scaling, denoise, sharpness,
+chromasitting, 1:N output, usrptr, etc.
+
+## Building
+
+1. In upper folder run autogen.sh, will produce the Makefile.
+```
+$ ./autogen.sh
+```
+2. In upper folder, make the sample.
+```
+$ make
+```
+3. The VP related sample will be produced in the videoprocess directory
+
+## How to run the sample
+
+1. The app para should be defined in the corresponding *.cfg file. Each app will have
+one related *.cfg.template for your reference,and the detailed para meaning is described in
+the file. you can create your *.cfg according to your usage.
+
+2. Copy the app and cfg file to the target machine and run.
+```
+$ ./vavpp process.cfg