From a17fafc3afe1019ebee46c03b149fa8ad8f82a15 Mon Sep 17 00:00:00 2001
From: Vincent Rabaud <vrabaud@google.com>
Date: Wed, 28 Aug 2024 11:49:27 +0200
Subject: [PATCH] Disable strict mode when reading avif files

This fixes https://github.com/opencv/opencv/issues/26011
---
 modules/imgcodecs/src/grfmt_avif.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/imgcodecs/src/grfmt_avif.cpp b/modules/imgcodecs/src/grfmt_avif.cpp
index c1d3682d0c..98ddb73362 100644
--- a/modules/imgcodecs/src/grfmt_avif.cpp
+++ b/modules/imgcodecs/src/grfmt_avif.cpp
@@ -143,6 +143,7 @@ AvifDecoder::AvifDecoder() {
   m_buf_supported = true;
   channels_ = 0;
   decoder_ = avifDecoderCreate();
+  decoder_->strictFlags = AVIF_STRICT_DISABLED;
 }
 
 AvifDecoder::~AvifDecoder() {
@@ -166,6 +167,7 @@ bool AvifDecoder::checkSignature(const String &signature) const {
   std::unique_ptr<avifDecoder, decltype(&avifDecoderDestroy)> decoder(
       avifDecoderCreate(), avifDecoderDestroy);
   if (!decoder) return false;
+  decoder->strictFlags = AVIF_STRICT_DISABLED;
   OPENCV_AVIF_CHECK_STATUS(
       avifDecoderSetIOMemory(
           decoder.get(), reinterpret_cast<const uint8_t *>(signature.c_str()),