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.
2026-05-17 11:43:10 +01:00
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+/*
+ * Copyright (C) 2010 Georg Martius <georg.martius@web.de>
+ * Copyright (C) 2010 Daniel G. Taylor <dan@programmer-art.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
+ */
+
+#ifndef AVFILTER_TRANSFORM_H
+#define AVFILTER_TRANSFORM_H
+
+#include <stdint.h>
+
+/**
+ * @file
+ * transform input video
+ *
+ * All matrices are defined as a single 9-item block of contiguous memory. For
+ * example, the identity matrix would be:
+ *
+ *     float *matrix = {1, 0, 0,
+ *                      0, 1, 0,
+ *                      0, 0, 1};
+ */
+
+enum InterpolateMethod {
+    INTERPOLATE_NEAREST,        //< Nearest-neighbor (fast)
+    INTERPOLATE_BILINEAR,       //< Bilinear
+    INTERPOLATE_BIQUADRATIC,    //< Biquadratic (best)
+    INTERPOLATE_COUNT,          //< Number of interpolation methods
+};
+
+// Shortcuts for the fastest and best interpolation methods
+#define INTERPOLATE_DEFAULT INTERPOLATE_BILINEAR
+#define INTERPOLATE_FAST    INTERPOLATE_NEAREST
+#define INTERPOLATE_BEST    INTERPOLATE_BIQUADRATIC
+
+enum FillMethod {
+    FILL_BLANK,         //< Fill zeroes at blank locations
+    FILL_ORIGINAL,      //< Original image at blank locations
+    FILL_CLAMP,         //< Extruded edge value at blank locations
+    FILL_MIRROR,        //< Mirrored edge at blank locations
+    FILL_COUNT,         //< Number of edge fill methods
+};
+
+// Shortcuts for fill methods
+#define FILL_DEFAULT FILL_ORIGINAL
+
+/**
+ * Get an affine transformation matrix from given translation, rotation, and
+ * zoom factors. The matrix will look like:
+ *
+ * [ scale_x * cos(angle),           -sin(angle),     x_shift,
+ *             sin(angle),  scale_y * cos(angle),     y_shift,
+ *                      0,                     0,           1 ]
+ *
+ * @param x_shift   horizontal translation
+ * @param y_shift   vertical translation
+ * @param angle     rotation in radians
+ * @param scale_x   x scale percent (1.0 = 100%)
+ * @param scale_y   y scale percent (1.0 = 100%)
+ * @param matrix    9-item affine transformation matrix
+ */
+void ff_get_matrix(
+    float x_shift,
+    float y_shift,
+    float angle,
+    float scale_x,
+    float scale_y,
+    float *matrix
+);
+
+/**
+ * Do an affine transformation with the given interpolation method. This
+ * multiplies each vector [x,y,1] by the matrix and then interpolates to
+ * get the final value.
+ *
+ * @param src         source image
+ * @param dst         destination image
+ * @param src_stride  source image line size in bytes
+ * @param dst_stride  destination image line size in bytes
+ * @param width       image width in pixels
+ * @param height      image height in pixels
+ * @param matrix      9-item affine transformation matrix
+ * @param interpolate pixel interpolation method
+ * @param fill        edge fill method
+ * @return negative on error
+ */
+int ff_affine_transform(const uint8_t *src, uint8_t *dst,
+                        int src_stride, int dst_stride,
+                        int width, int height, const float *matrix,
+                        enum InterpolateMethod interpolate,
+                        enum FillMethod fill);
+
+#endif /* AVFILTER_TRANSFORM_H */