video: add H264 estimate in video_estimate_fmt_size

Add rough estimate of a worth case H264 output size.

Signed-off-by: Alain Volmat <[email protected]>

Author: Alain Volmat

drivers/video/video_common.c

@@ -456,6 +456,11 @@ int video_estimate_fmt_size(struct video_format *fmt)
 		fmt->pitch = 0;
 		fmt->size = fmt->width * fmt->height * 2;
 		break;
+	case VIDEO_PIX_FMT_H264:
+		/* Rough estimate for the worst case */
+		fmt->pitch = 0;
+		fmt->size = fmt->width * fmt->height * 2;
+		break;
 	default:
 		/* Uncompressed format */
 		fmt->pitch = fmt->width * video_bits_per_pixel(fmt->pixelformat) / BITS_PER_BYTE;