diff --git a/samples/videoDecodeRGB/videodecrgb.cpp b/samples/videoDecodeRGB/videodecrgb.cpp
index 08bdbdb269..ce1952ea3c 100644
--- a/samples/videoDecodeRGB/videodecrgb.cpp
+++ b/samples/videoDecodeRGB/videodecrgb.cpp
@@ -119,15 +119,8 @@ void ColorSpaceConversionThread(std::atomic<bool>& continue_processing, bool con
         }
 
         if (convert_to_rgb) {
-            int rgb_width;
-            if (p_surf_info->bit_depth == 8) {
-                rgb_width = (p_surf_info->output_width + 1) & ~1; // has to be a multiple of 2 for hip colorconvert kernels
-                rgb_image_size = ((e_output_format == bgr) || (e_output_format == rgb)) ? rgb_width * p_surf_info->output_height * 3 : rgb_width * p_surf_info->output_height * 4;
-            } else {
-                rgb_width = (p_surf_info->output_width + 1) & ~1;
-                rgb_image_size = ((e_output_format == bgr) || (e_output_format == rgb)) ? rgb_width * p_surf_info->output_height * 3 : ((e_output_format == bgr48) || (e_output_format == rgb48)) ? 
-                                                        rgb_width * p_surf_info->output_height * 6 : rgb_width * p_surf_info->output_height * 8;
-            }
+            uint32_t rgb_stride = post_proc.GetRgbStride(e_output_format, p_surf_info);
+            rgb_image_size = p_surf_info->output_height * rgb_stride;
             if (p_rgb_dev_mem == nullptr) {
                 hip_status = hipMalloc(&p_rgb_dev_mem, rgb_image_size);
                 if (hip_status != hipSuccess) {
diff --git a/utils/video_post_process.h b/utils/video_post_process.h
index d0821ad9ec..bd858db0a7 100644
--- a/utils/video_post_process.h
+++ b/utils/video_post_process.h
@@ -103,6 +103,17 @@ class VideoPostProcess {
                 else if (e_output_format == rgba64)
                 P016ToColor64<RGBA64>(p_src, surf_info->output_pitch, static_cast<uint8_t *>(rgb_dev_mem_ptr), 8 * rgb_width, surf_info->output_width, 
                                     surf_info->output_height, surf_info->output_vstride, 0, hip_stream);
+            }   
+        };
+        uint32_t GetRgbStride(OutputFormatEnum e_output_format, OutputSurfaceInfo *surf_info) {
+            uint32_t rgb_stride;
+            uint32_t  rgb_width = (surf_info->output_width + 1) & ~1; // has to be a multiple of 2 for hip colorconvert kernels
+            if (surf_info->bit_depth == 8) {
+                rgb_stride = ((e_output_format == bgr) || (e_output_format == rgb)) ? rgb_width * 3 : rgb_width * 4;        // bgr/bgra/rgb/rgba
+            } else {
+                rgb_stride = ((e_output_format == bgr) || (e_output_format == rgb)) ? rgb_width * 3 : 
+                        ((e_output_format == bgr48) || (e_output_format == rgb48)) ? rgb_width * 6 : rgb_width * 8;
             }
+            return rgb_stride;
         };
 };
\ No newline at end of file