capnp fix bug

pans

2017-08-18 7572cd33f27b512691b6acf39cd0d78d35017a46

 VisitFace/RtspNativeCodec/app/src/main/java/com/example/nativecodec/TextureRender.java

@@ -213,6 +213,7 @@
    }

    public void readPixels(Buffer buf)

    {

        GLES20.glReadPixels(0, 0, 640, 480, GLES20.GL_RGB, GLES20.GL_UNSIGNED_BYTE, buf);

        GLES20.glReadPixels(0, 0, 1, 1, GL10.GL_RGB, GL10.GL_UNSIGNED_BYTE, buf);

        //GLES20.glReadPixels(0, 0, 640, 480, GLES20.GL_RGB, GLES20.GL_UNSIGNED_BYTE, buf);

    }

}