24 #include "libavutil/attributes.h"
25 #include "libavutil/imgutils.h"
32 int16_t
basis[64],
int scale)
37 for (i = 0; i < 8 * 8; i++) {
38 int b = rem[i] + ((basis[i] * scale +
43 assert(-512 < b && b < 512);
45 sum += (w *
b) * (w * b) >> 4;
54 for (i = 0; i < 8 * 8; i++)
55 rem[i] += (basis[i] * scale +
64 for (i = 0; i < 16; i++) {
65 for (j = 0; j < 16; j += 8) {
76 pix += line_size - 16;
86 for (i = 0; i < 16; i++) {
87 for (j = 0; j < 16; j += 8) {
99 register uint64_t x = *(uint64_t *) pix;
101 s += sq[(x >> 8) & 0xff];
102 s += sq[(x >> 16) & 0xff];
103 s += sq[(x >> 24) & 0xff];
104 s += sq[(x >> 32) & 0xff];
105 s += sq[(x >> 40) & 0xff];
106 s += sq[(x >> 48) & 0xff];
107 s += sq[(x >> 56) & 0xff];
109 register uint32_t x = *(uint32_t *) pix;
111 s += sq[(x >> 8) & 0xff];
112 s += sq[(x >> 16) & 0xff];
113 s += sq[(x >> 24) & 0xff];
114 x = *(uint32_t *) (pix + 4);
116 s += sq[(x >> 8) & 0xff];
117 s += sq[(x >> 16) & 0xff];
118 s += sq[(x >> 24) & 0xff];
123 pix += line_size - 16;
131 int w,
int h,
int sides)
133 uint8_t *ptr = buf, *last_line;
137 for (i = 0; i <
height; i++) {
138 memset(ptr - w, ptr[0], w);
139 memset(ptr + width, ptr[width - 1], w);
145 last_line = buf + (height - 1) * wrap;
147 for (i = 0; i < h; i++)
149 memcpy(buf - (i + 1) *
wrap, buf, width + w + w);
151 for (i = 0; i < h; i++)
153 memcpy(last_line + (i + 1) *
wrap, last_line, width + w + w);
static int pix_norm1_c(uint8_t *pix, int line_size)
void(* shrink[4])(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
av_cold void ff_mpegvideoencdsp_init_ppc(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
uint32_t ff_square_tab[512]
void(* draw_edges)(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides)
av_cold void ff_mpegvideoencdsp_init(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
void ff_shrink44(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
static void draw_edges_8_c(uint8_t *buf, int wrap, int width, int height, int w, int h, int sides)
Libavcodec external API header.
int(* pix_norm1)(uint8_t *pix, int line_size)
int(* pix_sum)(uint8_t *pix, int line_size)
void ff_shrink88(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
void ff_shrink22(uint8_t *dst, int dst_wrap, const uint8_t *src, int src_wrap, int width, int height)
static void add_8x8basis_c(int16_t rem[64], int16_t basis[64], int scale)
av_cold void ff_mpegvideoencdsp_init_arm(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
main external API structure.
void(* add_8x8basis)(int16_t rem[64], int16_t basis[64], int scale)
int(* try_8x8basis)(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
static int pix_sum_c(uint8_t *pix, int line_size)
void ff_mpegvideoencdsp_init_x86(MpegvideoEncDSPContext *c, AVCodecContext *avctx)
static int16_t basis[64][64]
static int try_8x8basis_c(int16_t rem[64], int16_t weight[64], int16_t basis[64], int scale)
void av_image_copy_plane(uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int bytewidth, int height)
Copy image plane from src to dst.