Added rotation sample code.

Signed-off-by: Furong Zhang <furong.zhang@intel.com>

Author: FurongZhang

videoprocess/process_rotation.cfg.template

@@ -0,0 +1,29 @@
+# Configuration information for video process test case.
+#    This application will firstly load yuv frames to one type of surface(NV12/YV12/I420)
+#  you require. After video processing, the processed content (NV12/YV12/I420 surface)
+#  will be stored to frames(yv12 format in file).
+#    Supported features include scaling and implicit format conversion(NV12<->YV12<->I420). 
+#  you can modify this configuration file to set the corresponding parameters.
+
+#1.Source YUV(RGB) file information
+SRC_FILE_NAME: ./bigship_1280_720p_25fps_10frames_writer1280x720_noised.nv12
+SRC_FRAME_WIDTH:  1280
+SRC_FRAME_HEIGHT: 720
+SRC_FRAME_FORMAT: NV12
+
+#Note .nv12 files are in NV12 format
+SRC_FILE_FORMAT: NV12
+
+#2.Destination YUV(RGB) file information
+DST_FILE_NAME:    ./scaling_out_720x1280.nv12
+DST_FRAME_WIDTH:  720
+DST_FRAME_HEIGHT: 1280
+DST_FRAME_FORMAT: NV12
+
+DST_FILE_FORMAT: NV12
+
+#3.How many frames to be processed
+FRAME_SUM: 1
+
+#4.How to use this template
+#./vppscaling_csc process_rotation.cfg.template 

videoprocess/vppscaling_csc.cpp

@@ -1,5 +1,5 @@
 /*
-* Copyright (c) 2009-2018, Intel Corporation
+* Copyright (c) 2009-2023, Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
@@ -1002,7 +1002,8 @@ video_frame_process(VASurfaceID in_surface_id,
     memset(&pipeline_param, 0, sizeof(pipeline_param));
     pipeline_param.surface = in_surface_id;
     pipeline_param.surface_region = &surface_region;
-    pipeline_param.output_region = &output_region;
+    pipeline_param.output_region = &output_region;   
+    pipeline_param.rotation_state = VA_ROTATION_90;    
 
     va_status = vaCreateBuffer(va_dpy,
                                context_id,
@@ -1105,6 +1106,20 @@ vpp_context_create()
                                 1,
                                 &context_id);
     CHECK_VASTATUS(va_status, "vaCreateContext");
+
+    VABufferID *filters = nullptr;
+    unsigned int num_filters = 0;
+    VAProcPipelineCaps pipeline_caps = {};
+    va_status = vaQueryVideoProcPipelineCaps(va_dpy,
+                                            context_id,
+                                            filters,
+                                            num_filters,
+                                            &pipeline_caps);
+    CHECK_VASTATUS(va_status, "vaQueryVideoProcPipeineCaps");
+    if (pipeline_caps.rotation_flags & (1 << VA_ROTATION_90)) {
+        printf("Clockwise rotation by 90 degrees is supported!\n");
+    }
+
     return va_status;
 }