[FFmpeg] chromium patch (microsoft#38683)

Required to build qtwebengine and probably chromium itself with ffmpeg
on linux-dynamic

ports/ffmpeg/0040-ffmpeg-add-av_stream_get_first_dts-for-chromium.patch

@@ -0,0 +1,35 @@
+diff --git a/libavformat/avformat.h b/libavformat/avformat.h
+index cd7b0d941c..b4a6dce885 100644
+--- a/libavformat/avformat.h
++++ b/libavformat/avformat.h
+@@ -1010,7 +1010,11 @@ struct AVCodecParserContext *av_stream_get_parser(const AVStream *s);
+ attribute_deprecated
+ int64_t    av_stream_get_end_pts(const AVStream *st);
+ #endif
+
++// Chromium: We use the internal field first_dts vvv
++int64_t    av_stream_get_first_dts(const AVStream *st);
++// Chromium: We use the internal field first_dts ^^^
++
+ #define AV_PROGRAM_RUNNING 1
+
+ /**
+diff --git a/libavformat/mux_utils.c b/libavformat/mux_utils.c
+index de7580c32d..0ef0fe530e 100644
+--- a/libavformat/mux_utils.c
++++ b/libavformat/mux_utils.c
+@@ -33,7 +33,14 @@ int64_t av_stream_get_end_pts(const AVStream *st)
+         return AV_NOPTS_VALUE;
+ }
+ #endif
+
++// Chromium: We use the internal field first_dts vvv
++int64_t av_stream_get_first_dts(const AVStream *st)
++{
++  return cffstream(st)->first_dts;
++}
++// Chromium: We use the internal field first_dts ^^^
++
+ int avformat_query_codec(const AVOutputFormat *ofmt, enum AVCodecID codec_id,
+                          int std_compliance)
+ {

ports/ffmpeg/portfile.cmake

@@ -19,6 +19,7 @@ vcpkg_from_github(
         0015-Fix-xml2-detection.patch
         0020-fix-aarch64-libswscale.patch
         0022-fix-iconv.patch
+        0040-ffmpeg-add-av_stream_get_first_dts-for-chromium.patch # Do not remove this patch. It is required by chromium
 )
 
 if(SOURCE_PATH MATCHES " ")

ports/ffmpeg/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "ffmpeg",
   "version": "6.1.1",
-  "port-version": 4,
+  "port-version": 5,
   "description": [
     "a library to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created.",
     "FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. It supports the most obscure ancient formats up to the cutting edge. No matter if they were designed by some standards committee, the community or a corporation. It is also highly portable: FFmpeg compiles, runs, and passes our testing infrastructure FATE across Linux, Mac OS X, Microsoft Windows, the BSDs, Solaris, etc. under a wide variety of build environments, machine architectures, and configurations."

versions/baseline.json

@@ -2682,7 +2682,7 @@
     },
     "ffmpeg": {
       "baseline": "6.1.1",
-      "port-version": 4
+      "port-version": 5
     },
     "ffnvcodec": {
       "baseline": "12.1.14.0",

versions/f-/ffmpeg.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "85d4d87ea35d942b4f5ed800f6c6c7c0a00c3e5d",
+      "version": "6.1.1",
+      "port-version": 5
+    },
     {
       "git-tree": "f5dac82c697daa8b59321a7e13596325efb8b278",
       "version": "6.1.1",