FFmpeg 7.1 + cuframes input demuxer

Snapshot FFmpeg n7.1 (release tag) с применённым patch'ем для cuframes
input format. Используется как FFMPEG_REPO_OVERRIDE в NickM-27/FFmpeg-Builds
fork для статической сборки patched binary под Frigate (Debian 12 / glibc 2.36).

Apply changes:
  + libavformat/cuframesdec.c (новый — реализация демуксера)
  M libavformat/Makefile (CONFIG_CUFRAMES_DEMUXER target)
  M libavformat/allformats.c (extern declaration)
  M configure (--enable-libcuframes option + dep check)

Patch source: https://git.goldix.org/gx/cuframes (filter/ffmpeg-7.1-cuframes-demuxer.patch)

History сброшена (snapshot вместо fork) потому что upstream shallow clone
не позволял push в gitea. Полная история FFmpeg — на github.com/FFmpeg/FFmpeg n7.1.

tools/bisect-create

@@ -0,0 +1,46 @@
+#!/bin/sh
+
+set -e
+
+if test "bisect-create" = "`basename $0`" ; then
+    echo tools/ffbisect created
+    git show master:tools/bisect-create > tools/ffbisect
+    chmod u+x tools/ffbisect
+    exit 1
+fi
+
+if ! git show master:tools/bisect-create | diff - tools/ffbisect > /dev/null ; then
+    echo updating tools/ffbisect script to HEAD.
+    git show master:tools/bisect-create > tools/ffbisect
+    chmod u+x tools/ffbisect
+    tools/ffbisect $*
+    exit 0
+fi
+
+case "$1" in
+    need)
+        case $2 in
+            ffmpeg|ffplay|ffprobe)
+                echo $2.c >> tools/bisect.need
+            ;;
+        esac
+    ;;
+    start|reset)
+        echo . > tools/bisect.need
+        git bisect $*
+    ;;
+    skip)
+        git bisect $*
+    ;;
+    good|bad)
+        git bisect $*
+
+        until ls `cat tools/bisect.need` > /dev/null 2> /dev/null; do
+            git bisect skip || break
+        done
+    ;;
+    run)
+       shift # remove "run" from arguments
+       git bisect run sh -c "ls \`cat tools/bisect.need\` > /dev/null 2> /dev/null || exit 125; \"\$@\"" sh "$@"
+    ;;
+esac