How to convert YCbCr to RGB565 DMA2D STM32H7

[Giovanni3]

Hi everyone, I'm using an STM32H743 MCU with an LTDC display and lvgl for management.
I'm using the graphics accelerator correctly to decode an mjpeg video in YCbCr, but I can't convert it to RGB565 with DMA2D.
If I try to convert without DMA2D, I get times of about 350 ms per frame (792*408). Decoding is successful in DMA.

static void video_playback_task(lv_timer_t * t)
{
	if (!MJPEG_GetNextFrame(Video_Buffer, Video_Size, &offset, &frame))
	{
		lv_timer_del(video_timer);
		video_timer = NULL;
		printf("Fine video\n");
		return;
	}
	JPEG_Decode_DMA(&hjpeg, frame.start, frame.size, Frame_Buffer);
	DMA2D_CopyBuffer((uint32_t*)Frame_Buffer, uint32_t*)Frame_Buffer_Rgb, IMAGE_WIDTH, IMAGE_HEIGHT);		
	img_dsc.data = Frame_Buffer_Rgb;
	lv_img_set_src(img, &img_dsc);
	lv_obj_invalidate(img);
	HAL_GPIO_TogglePin(Check_ADAS_GPIO_Port, Check_ADAS_Pin);
}
static void JPEG_Decode_DMA(JPEG_HandleTypeDef *hjpeg, uint8_t *FrameSrc, uint32_t FrameSize, uint8_t *YCbCr_Dst)
{
	JPEGSourceAddress = FrameSrc;
	FrameBufferAddress = YCbCr_Dst;
	Input_frameIndex = 0;
	Input_frameSize = FrameSize;
	Jpeg_HWDecodingEnd = 0;
	HAL_JPEG_Decode_DMA(hjpeg, (uint8_t *)JPEGSourceAddress, CHUNK_SIZE_IN, (uint8_t *)FrameBufferAddress, CHUNK_SIZE_OUT);
	while (Jpeg_HWDecodingEnd == 0)
	{
			// Attende completamento DMA (non blocca CPU pesantemente)
	}
}