[rpms/opencv] opencv5: Fixed build with FFmpeg 8

[Dominik 'Rathann' Mierzejewski <dominik@greysector.net>]

A new commit has been pushed.

Repo   : rpms/opencv
Branch : opencv5
Commit : 81d1bbe53c6a431300f1f5f163d20bfd19d6e250
Author : Dominik 'Rathann' Mierzejewski <dominik@greysector.net>
Date   : 2025-10-20T16:29:01+02:00
Stats  : +50/-1 in 2 file(s)
URL    : https://src.fedoraproject.org/rpms/opencv/c/81d1bbe53c6a431300f1f5f163d20bfd19d6e250?branch=opencv5

Log:
Fixed build with FFmpeg 8

---
diff --git a/27691.patch b/27691.patch
new file mode 100644
index 0000000..c08b882
--- /dev/null
+++ b/27691.patch
@@ -0,0 +1,43 @@
+From 90c444abd387ffa70b2e72a34922903a2f0f4f5a Mon Sep 17 00:00:00 2001
+From: Alexander Smorkalov <alexander.smorkalov@opencv.ai>
+Date: Wed, 20 Aug 2025 10:53:51 +0300
+Subject: [PATCH] FFmpeg 8.0 support.
+
+---
+ modules/videoio/src/cap_ffmpeg_impl.hpp | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/modules/videoio/src/cap_ffmpeg_impl.hpp b/modules/videoio/src/cap_ffmpeg_impl.hpp
+index 489dbe565d3d..5780b4c11361 100644
+--- a/modules/videoio/src/cap_ffmpeg_impl.hpp
++++ b/modules/videoio/src/cap_ffmpeg_impl.hpp
+@@ -685,7 +685,10 @@ void CvCapture_FFMPEG::close()
+     if( video_st )
+     {
+ #ifdef CV_FFMPEG_CODECPAR
++// avcodec_close removed in FFmpeg release 8.0
++# if (LIBAVCODEC_BUILD < CALC_FFMPEG_VERSION(62, 11, 100))
+         avcodec_close( context );
++# endif
+ #endif
+         video_st = NULL;
+     }
+@@ -2005,7 +2008,18 @@ void CvCapture_FFMPEG::get_rotation_angle()
+     rotation_angle = 0;
+ #if LIBAVFORMAT_BUILD >= CALC_FFMPEG_VERSION(57, 68, 100)
+     const uint8_t *data = 0;
++    // av_stream_get_side_data removed in FFmpeg release 8.0
++# if (LIBAVCODEC_BUILD < CALC_FFMPEG_VERSION(62, 11, 100))
+     data = av_stream_get_side_data(video_st, AV_PKT_DATA_DISPLAYMATRIX, NULL);
++# else
++    AVPacketSideData* sd = video_st->codecpar->coded_side_data;
++    int nb_sd = video_st->codecpar->nb_coded_side_data;
++    if (sd && nb_sd > 0)
++    {
++        const AVPacketSideData* mtx = av_packet_side_data_get(sd,  nb_sd, AV_PKT_DATA_DISPLAYMATRIX);
++        data = mtx->data;
++    }
++# endif
+     if (data)
+     {
+         rotation_angle = -cvRound(av_display_rotation_get((const int32_t*)data));

diff --git a/opencv.spec b/opencv.spec
index 3bc6f39..6c1cc7e 100644
--- a/opencv.spec
+++ b/opencv.spec
@@ -75,7 +75,7 @@ Version:        4.11.0
 %global minorver %(foo=%{version}; a=(${foo//./ }); echo ${a[1]} )
 %global padding  %(digits=00; num=%{minorver}; echo ${digits:${#num}:${#digits}} )
 %global abiver   %(echo %{majorver}%{padding}%{minorver} )
-Release:        13%{?dist}
+Release:        14%{?dist}
 Summary:        Collection of algorithms for computer vision
 # This is normal three clause BSD.
 License:        BSD-3-Clause AND Apache-2.0 AND ISC
@@ -121,6 +121,8 @@ Patch15:        0010-Merge-pull-request-26915-from-mshabunin-fix-png-be.patch
 # Fix build with Qt 6.9, by Atri Bhattacharya (thanks)
 # https://github.com/opencv/opencv/issues/27223#issuecomment-2797750952
 Patch16:        qt69.patch
+# Fix build with FFmpeg 8
+Patch17:        https://github.com/opencv/opencv/pull/27691.patch
 
 
 BuildRequires:  gcc-c++
@@ -434,6 +436,7 @@ popd &>/dev/null
 %patch -P 14 -p1 -b .png9
 %patch -P 15 -p1 -b .png10
 %patch -P 16 -p1 -b .qt69
+%patch -P 17 -p1 -b .ffmpeg8
 
 pushd %{name}_contrib-%{version}
 #patch1 -p1 -b .install_cvv
@@ -634,6 +637,9 @@ export LD_LIBRARY_PATH=%{_builddir}/%{name}-%{version}/%{__cmake_builddir}/lib:$
 
 
 %changelog
+* Fri Oct 17 2025 Dominik Mierzejewski <dominik@greysector.net> - 4.11.0-14
+- Fix build with FFmpeg 8
+
 * Thu Oct 16 2025 Nicolas Chauvet <kwizart@gmail.com> - 4.11.0-13
 - Use pyprojectize - thanks Miro !