diff --git a/msm/vidc/msm_vidc_buffer_calculations.c b/msm/vidc/msm_vidc_buffer_calculations.c
index cf4379993bbf..f10ec687dc86 100644
--- a/msm/vidc/msm_vidc_buffer_calculations.c
+++ b/msm/vidc/msm_vidc_buffer_calculations.c
@@ -1014,15 +1014,9 @@ u32 msm_vidc_calculate_enc_output_frame_size(struct msm_vidc_inst *inst)
 	if (inst->rc_type == RATE_CONTROL_LOSSLESS)
 		frame_size = (width * height * 9) >> 2;
 
-	/*
-	 * In case of opaque color format bitdepth will be known
-	 * with first ETB, buffers allocated already with 8 bit
-	 * won't be sufficient for 10 bit
-	 * calculate size considering 10-bit by default
-	 * For 10-bit cases size = size * 1.25
-	*/
-		frame_size *= 5;
-		frame_size /= 4;
+	/* multiply by 10/8 (1.25) to get size for 10 bit case */
+	if (f->fmt.pix_mp.pixelformat == V4L2_PIX_FMT_HEVC)
+		frame_size = frame_size + (frame_size >> 2);
 
 	return ALIGN(frame_size, SZ_4K);
 }