From 6dbb9c705a02bba215687ec253f92200f7f7d24d Mon Sep 17 00:00:00 2001
From: Seungha Yang <seungha@centricular.com>
Date: Sun, 27 Jun 2021 20:19:39 +0900
Subject: [PATCH] av1parser: Fix tile size calculation

Remaining size should exclude already read "tile size bits".
And see also "5.11.1. General tile group OBU syntax"

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2365>
---
 gst-libs/gst/codecparsers/gstav1parser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gst-libs/gst/codecparsers/gstav1parser.c b/gst-libs/gst/codecparsers/gstav1parser.c
index 053f2f50ca..5fa283c384 100644
--- a/gst-libs/gst/codecparsers/gstav1parser.c
+++ b/gst-libs/gst/codecparsers/gstav1parser.c
@@ -4449,7 +4449,7 @@ gst_av1_parse_tile_group (GstAV1Parser * parser, GstBitReader * br,
       if (retval != GST_AV1_PARSER_OK)
         goto error;
       tile_size = tile_size_minus_1 + 1;
-      sz -= tile_size - parser->state.tile_size_bytes;
+      sz -= (tile_size + parser->state.tile_size_bytes);
     }
 
     tile_group->entry[tile_num].tile_size = tile_size;