Guard the field assignment num_delta_pocs_of_ref_rps_idx as it is not supported

in fedora < 39

chromium-116-v4l2-num_delta_pocs_of_ref_rps_idx.patch

@@ -0,0 +1,50 @@
+commit 992f2b837f7c150bebe40a8186420c5c065b71f8
+Author: Chen-Yu Tsai <wenst@chromium.org>
+Date:   Mon Jul 31 04:50:11 2023 +0000
+
+    media/gpu/v4l2: Only set HEVC .num_delta_pocs_of_ref_rps_idx on ChromeOS
+    
+    The HEVC decode parameter .num_delta_pocs_of_ref_rps_idx field was
+    very recently added to support MediaTek's stateless HEVC decoder. It
+    was accepted upstream, but hasn't been part of a release yet, and so
+    hasn't trickled down into a distro package that can be included in the
+    sysroots.
+    
+    Guard the field assignment for now so that the Linux builds can proceed.
+    
+    Bug: b:258331312, b:291169645
+    Cq-Include-Trybots: luci.chromium.try:linux-v4l2-codec-rel
+    Change-Id: I1629be2373e7d67ea06a206226ad09bce90c3752
+    Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4728846
+    Reviewed-by: Nathan Hebert <nhebert@chromium.org>
+    Auto-Submit: Chen-Yu Tsai <wenst@chromium.org>
+    Commit-Queue: Chen-Yu Tsai <wenst@chromium.org>
+    Cr-Commit-Position: refs/heads/main@{#1177093}
+
+diff --git a/media/gpu/v4l2/v4l2_video_decoder_delegate_h265.cc b/media/gpu/v4l2/v4l2_video_decoder_delegate_h265.cc
+index d683fbb5407a4..0f02f39758fe9 100644
+--- a/media/gpu/v4l2/v4l2_video_decoder_delegate_h265.cc
++++ b/media/gpu/v4l2/v4l2_video_decoder_delegate_h265.cc
+@@ -11,6 +11,7 @@
+ #include <type_traits>
+ 
+ #include "base/logging.h"
++#include "build/build_config.h"
+ #include "media/gpu/macros.h"
+ #include "media/gpu/v4l2/v4l2_decode_surface.h"
+ #include "media/gpu/v4l2/v4l2_decode_surface_handler.h"
+@@ -410,8 +411,14 @@ V4L2VideoDecoderDelegateH265::SubmitFrameMetadata(
+       .pic_order_cnt_val = pic->pic_order_cnt_val_,
+       .short_term_ref_pic_set_size = static_cast<__u16>(slice_hdr->st_rps_bits),
+       .long_term_ref_pic_set_size = static_cast<__u16>(slice_hdr->lt_rps_bits),
++#if BUILDFLAG(IS_CHROMEOS)
++      // .num_delta_pocs_of_ref_rps_idx is upstream but not yet pulled
++      // into linux build sysroot.
++      // TODO(wenst): Remove once linux-libc-dev package is updated to
++      // at least v6.5 in the sysroots.
+       .num_delta_pocs_of_ref_rps_idx =
+           static_cast<__u8>(slice_hdr->st_ref_pic_set.rps_idx_num_delta_pocs),
++#endif
+       .flags = static_cast<__u64>(
+           (pic->irap_pic_ ? V4L2_HEVC_DECODE_PARAM_FLAG_IRAP_PIC : 0) |
+           ((pic->nal_unit_type_ >= H265NALU::IDR_W_RADL &&

chromium.spec

@@ -377,6 +377,9 @@ Patch312: chromium-115-python-3.12-deprecated.patch
 Patch350: chromium-115-linux_ui_darkmode.patch
 # Tweak about:gpu, Add dark mode support
 Patch351: chromium-116-tweak_about_gpu.patch
+# Guard the field assignment num_delta_pocs_of_ref_rps_idx as it is not supported
+# in fedora < 39
+Patch352: chromium-116-v4l2-num_delta_pocs_of_ref_rps_idx.patch
 
 # Use chromium-latest.py to generate clean tarball from released build tarballs, found here:
 # http://build.chromium.org/buildbot/official/
@@ -976,6 +979,13 @@ udev.
 %patch -P350 -p1 -b .linux_ui_darkmode
 %patch -P351 -p1 -b .tweak_about_gpu
 
+%ifarch aarch64
+%if 0%{?fedora} < 39
+%patch -P352 -p1 -b .num_delta_pocs_of_ref_rps_idx
+%endif 
+%endif
+
+
 # Change shebang in all relevant files in this directory and all subdirectories
 # See `man find` for how the `-exec command {} +` syntax works
 find -type f \( -iname "*.py" \) -exec sed -i '1s=^#! */usr/bin/\(python\|env python\)[23]\?=#!%{__python3}=' {} +