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.

libavformat/voc.c

@@ -0,0 +1,43 @@
+/*
+ * Creative Voice File common data.
+ * Copyright (c) 2006  Aurelien Jacobs <aurel@gnuage.org>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include "config_components.h"
+#include "voc.h"
+#include "internal.h"
+
+
+const AVCodecTag ff_voc_codec_tags[] = {
+    {AV_CODEC_ID_PCM_U8,        0x00},
+    {AV_CODEC_ID_ADPCM_SBPRO_4, 0x01},
+    {AV_CODEC_ID_ADPCM_SBPRO_3, 0x02},
+    {AV_CODEC_ID_ADPCM_SBPRO_2, 0x03},
+    {AV_CODEC_ID_PCM_S16LE,     0x04},
+    {AV_CODEC_ID_PCM_ALAW,      0x06},
+    {AV_CODEC_ID_PCM_MULAW,     0x07},
+    {AV_CODEC_ID_ADPCM_CT,    0x0200},
+    {AV_CODEC_ID_NONE,             0},
+};
+
+#if CONFIG_VOC_DEMUXER || CONFIG_VOC_MUXER
+const unsigned char ff_voc_magic[21] = "Creative Voice File\x1A";
+const AVCodecTag *const ff_voc_codec_tags_list[] = { ff_voc_codec_tags, NULL };
+#endif