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.
This commit is contained in:
@@ -0,0 +1,177 @@
|
||||
/*
|
||||
* 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
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* transform input video
|
||||
*/
|
||||
|
||||
#include "libavutil/common.h"
|
||||
#include "libavutil/avassert.h"
|
||||
|
||||
#include "transform.h"
|
||||
|
||||
#define INTERPOLATE_METHOD(name) \
|
||||
static uint8_t name(float x, float y, const uint8_t *src, \
|
||||
int width, int height, int stride, uint8_t def)
|
||||
|
||||
#define PIXEL(img, x, y, w, h, stride, def) \
|
||||
((x) < 0 || (y) < 0) ? (def) : \
|
||||
(((x) >= (w) || (y) >= (h)) ? (def) : \
|
||||
img[(x) + (y) * (stride)])
|
||||
|
||||
/**
|
||||
* Nearest neighbor interpolation
|
||||
*/
|
||||
INTERPOLATE_METHOD(interpolate_nearest)
|
||||
{
|
||||
return PIXEL(src, (int)(x + 0.5), (int)(y + 0.5), width, height, stride, def);
|
||||
}
|
||||
|
||||
/**
|
||||
* Bilinear interpolation
|
||||
*/
|
||||
INTERPOLATE_METHOD(interpolate_bilinear)
|
||||
{
|
||||
int x_c, x_f, y_c, y_f;
|
||||
int v1, v2, v3, v4;
|
||||
|
||||
if (x < -1 || x > width || y < -1 || y > height) {
|
||||
return def;
|
||||
} else {
|
||||
x_f = (int)x;
|
||||
x_c = x_f + 1;
|
||||
|
||||
y_f = (int)y;
|
||||
y_c = y_f + 1;
|
||||
|
||||
v1 = PIXEL(src, x_c, y_c, width, height, stride, def);
|
||||
v2 = PIXEL(src, x_c, y_f, width, height, stride, def);
|
||||
v3 = PIXEL(src, x_f, y_c, width, height, stride, def);
|
||||
v4 = PIXEL(src, x_f, y_f, width, height, stride, def);
|
||||
|
||||
return (v1*(x - x_f)*(y - y_f) + v2*((x - x_f)*(y_c - y)) +
|
||||
v3*(x_c - x)*(y - y_f) + v4*((x_c - x)*(y_c - y)));
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Biquadratic interpolation
|
||||
*/
|
||||
INTERPOLATE_METHOD(interpolate_biquadratic)
|
||||
{
|
||||
int x_c, x_f, y_c, y_f;
|
||||
uint8_t v1, v2, v3, v4;
|
||||
float f1, f2, f3, f4;
|
||||
|
||||
if (x < - 1 || x > width || y < -1 || y > height)
|
||||
return def;
|
||||
else {
|
||||
x_f = (int)x;
|
||||
x_c = x_f + 1;
|
||||
y_f = (int)y;
|
||||
y_c = y_f + 1;
|
||||
|
||||
v1 = PIXEL(src, x_c, y_c, width, height, stride, def);
|
||||
v2 = PIXEL(src, x_c, y_f, width, height, stride, def);
|
||||
v3 = PIXEL(src, x_f, y_c, width, height, stride, def);
|
||||
v4 = PIXEL(src, x_f, y_f, width, height, stride, def);
|
||||
|
||||
f1 = 1 - sqrt((x_c - x) * (y_c - y));
|
||||
f2 = 1 - sqrt((x_c - x) * (y - y_f));
|
||||
f3 = 1 - sqrt((x - x_f) * (y_c - y));
|
||||
f4 = 1 - sqrt((x - x_f) * (y - y_f));
|
||||
return (v1 * f1 + v2 * f2 + v3 * f3 + v4 * f4) / (f1 + f2 + f3 + f4);
|
||||
}
|
||||
}
|
||||
|
||||
void ff_get_matrix(
|
||||
float x_shift,
|
||||
float y_shift,
|
||||
float angle,
|
||||
float scale_x,
|
||||
float scale_y,
|
||||
float *matrix
|
||||
) {
|
||||
matrix[0] = scale_x * cos(angle);
|
||||
matrix[1] = -sin(angle);
|
||||
matrix[2] = x_shift;
|
||||
matrix[3] = -matrix[1];
|
||||
matrix[4] = scale_y * cos(angle);
|
||||
matrix[5] = y_shift;
|
||||
matrix[6] = 0;
|
||||
matrix[7] = 0;
|
||||
matrix[8] = 1;
|
||||
}
|
||||
|
||||
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)
|
||||
{
|
||||
int x, y;
|
||||
float x_s, y_s;
|
||||
uint8_t def = 0;
|
||||
uint8_t (*func)(float, float, const uint8_t *, int, int, int, uint8_t) = NULL;
|
||||
|
||||
switch(interpolate) {
|
||||
case INTERPOLATE_NEAREST:
|
||||
func = interpolate_nearest;
|
||||
break;
|
||||
case INTERPOLATE_BILINEAR:
|
||||
func = interpolate_bilinear;
|
||||
break;
|
||||
case INTERPOLATE_BIQUADRATIC:
|
||||
func = interpolate_biquadratic;
|
||||
break;
|
||||
default:
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
for (y = 0; y < height; y++) {
|
||||
for(x = 0; x < width; x++) {
|
||||
x_s = x * matrix[0] + y * matrix[1] + matrix[2];
|
||||
y_s = x * matrix[3] + y * matrix[4] + matrix[5];
|
||||
|
||||
switch(fill) {
|
||||
case FILL_ORIGINAL:
|
||||
def = src[y * src_stride + x];
|
||||
break;
|
||||
case FILL_CLAMP:
|
||||
y_s = av_clipf(y_s, 0, height - 1);
|
||||
x_s = av_clipf(x_s, 0, width - 1);
|
||||
def = src[(int)y_s * src_stride + (int)x_s];
|
||||
break;
|
||||
case FILL_MIRROR:
|
||||
x_s = avpriv_mirror(x_s, width-1);
|
||||
y_s = avpriv_mirror(y_s, height-1);
|
||||
|
||||
av_assert2(x_s >= 0 && y_s >= 0);
|
||||
av_assert2(x_s < width && y_s < height);
|
||||
def = src[(int)y_s * src_stride + (int)x_s];
|
||||
}
|
||||
|
||||
dst[y * dst_stride + x] = func(x_s, y_s, src, width, height, src_stride, def);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user