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avcodec/me_cmp: remove ff_me_cmp_init_static()

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Precalculate and constify ff_square_tab.

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
This commit is contained in:
Muhammad Faiz 2018-02-04 05:44:23 +07:00
parent 118e1b0b33
commit caa4bd7a9f
6 changed files with 42 additions and 31 deletions
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50
libavcodec/me_cmp.c
View File

@ -29,13 +29,47 @@
#include "mpegvideo.h"
#include "config.h"
uint32_t ff_square_tab[512] = { 0, };
/* (i - 256) * (i - 256) */
const uint32_t ff_square_tab[512] = {
65536, 65025, 64516, 64009, 63504, 63001, 62500, 62001, 61504, 61009, 60516, 60025, 59536, 59049, 58564, 58081,
57600, 57121, 56644, 56169, 55696, 55225, 54756, 54289, 53824, 53361, 52900, 52441, 51984, 51529, 51076, 50625,
50176, 49729, 49284, 48841, 48400, 47961, 47524, 47089, 46656, 46225, 45796, 45369, 44944, 44521, 44100, 43681,
43264, 42849, 42436, 42025, 41616, 41209, 40804, 40401, 40000, 39601, 39204, 38809, 38416, 38025, 37636, 37249,
36864, 36481, 36100, 35721, 35344, 34969, 34596, 34225, 33856, 33489, 33124, 32761, 32400, 32041, 31684, 31329,
30976, 30625, 30276, 29929, 29584, 29241, 28900, 28561, 28224, 27889, 27556, 27225, 26896, 26569, 26244, 25921,
25600, 25281, 24964, 24649, 24336, 24025, 23716, 23409, 23104, 22801, 22500, 22201, 21904, 21609, 21316, 21025,
20736, 20449, 20164, 19881, 19600, 19321, 19044, 18769, 18496, 18225, 17956, 17689, 17424, 17161, 16900, 16641,
16384, 16129, 15876, 15625, 15376, 15129, 14884, 14641, 14400, 14161, 13924, 13689, 13456, 13225, 12996, 12769,
12544, 12321, 12100, 11881, 11664, 11449, 11236, 11025, 10816, 10609, 10404, 10201, 10000, 9801, 9604, 9409,
9216, 9025, 8836, 8649, 8464, 8281, 8100, 7921, 7744, 7569, 7396, 7225, 7056, 6889, 6724, 6561,
6400, 6241, 6084, 5929, 5776, 5625, 5476, 5329, 5184, 5041, 4900, 4761, 4624, 4489, 4356, 4225,
4096, 3969, 3844, 3721, 3600, 3481, 3364, 3249, 3136, 3025, 2916, 2809, 2704, 2601, 2500, 2401,
2304, 2209, 2116, 2025, 1936, 1849, 1764, 1681, 1600, 1521, 1444, 1369, 1296, 1225, 1156, 1089,
1024, 961, 900, 841, 784, 729, 676, 625, 576, 529, 484, 441, 400, 361, 324, 289,
256, 225, 196, 169, 144, 121, 100, 81, 64, 49, 36, 25, 16, 9, 4, 1,
0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225,
256, 289, 324, 361, 400, 441, 484, 529, 576, 625, 676, 729, 784, 841, 900, 961,
1024, 1089, 1156, 1225, 1296, 1369, 1444, 1521, 1600, 1681, 1764, 1849, 1936, 2025, 2116, 2209,
2304, 2401, 2500, 2601, 2704, 2809, 2916, 3025, 3136, 3249, 3364, 3481, 3600, 3721, 3844, 3969,
4096, 4225, 4356, 4489, 4624, 4761, 4900, 5041, 5184, 5329, 5476, 5625, 5776, 5929, 6084, 6241,
6400, 6561, 6724, 6889, 7056, 7225, 7396, 7569, 7744, 7921, 8100, 8281, 8464, 8649, 8836, 9025,
9216, 9409, 9604, 9801, 10000, 10201, 10404, 10609, 10816, 11025, 11236, 11449, 11664, 11881, 12100, 12321,
12544, 12769, 12996, 13225, 13456, 13689, 13924, 14161, 14400, 14641, 14884, 15129, 15376, 15625, 15876, 16129,
16384, 16641, 16900, 17161, 17424, 17689, 17956, 18225, 18496, 18769, 19044, 19321, 19600, 19881, 20164, 20449,
20736, 21025, 21316, 21609, 21904, 22201, 22500, 22801, 23104, 23409, 23716, 24025, 24336, 24649, 24964, 25281,
25600, 25921, 26244, 26569, 26896, 27225, 27556, 27889, 28224, 28561, 28900, 29241, 29584, 29929, 30276, 30625,
30976, 31329, 31684, 32041, 32400, 32761, 33124, 33489, 33856, 34225, 34596, 34969, 35344, 35721, 36100, 36481,
36864, 37249, 37636, 38025, 38416, 38809, 39204, 39601, 40000, 40401, 40804, 41209, 41616, 42025, 42436, 42849,
43264, 43681, 44100, 44521, 44944, 45369, 45796, 46225, 46656, 47089, 47524, 47961, 48400, 48841, 49284, 49729,
50176, 50625, 51076, 51529, 51984, 52441, 52900, 53361, 53824, 54289, 54756, 55225, 55696, 56169, 56644, 57121,
57600, 58081, 58564, 59049, 59536, 60025, 60516, 61009, 61504, 62001, 62500, 63001, 63504, 64009, 64516, 65025,
};
static int sse4_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
int s = 0, i;
uint32_t *sq = ff_square_tab + 256;
const uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < h; i++) {
s += sq[pix1[0] - pix2[0]];
@ -52,7 +86,7 @@ static int sse8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
int s = 0, i;
uint32_t *sq = ff_square_tab + 256;
const uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < h; i++) {
s += sq[pix1[0] - pix2[0]];
@ -73,7 +107,7 @@ static int sse16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
int s = 0, i;
uint32_t *sq = ff_square_tab + 256;
const uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < h; i++) {
s += sq[pix1[0] - pix2[0]];
@ -977,14 +1011,6 @@ WRAPPER8_16_SQ(quant_psnr8x8_c, quant_psnr16_c)
WRAPPER8_16_SQ(rd8x8_c, rd16_c)
WRAPPER8_16_SQ(bit8x8_c, bit16_c)
av_cold void ff_me_cmp_init_static(void)
{
int i;
for (i = 0; i < 512; i++)
ff_square_tab[i] = (i - 256) * (i - 256);
}
int ff_check_alignment(void)
{
static int did_fail = 0;

4
libavcodec/me_cmp.h
View File

@ -23,7 +23,7 @@
#include "avcodec.h"
extern uint32_t ff_square_tab[512];
extern const uint32_t ff_square_tab[512];
/* minimum alignment rules ;)
@ -79,8 +79,6 @@ typedef struct MECmpContext {
me_cmp_func median_sad[6];
} MECmpContext;
void ff_me_cmp_init_static(void);
int ff_check_alignment(void);
void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx);

2
libavcodec/mpegvideo_enc.c
View File

@ -2713,7 +2713,7 @@ static inline void encode_mb_hq(MpegEncContext *s, MpegEncContext *backup, MpegE
}
static int sse(MpegEncContext *s, uint8_t *src1, uint8_t *src2, int w, int h, int stride){
uint32_t *sq = ff_square_tab + 256;
const uint32_t *sq = ff_square_tab + 256;
int acc=0;
int x,y;

2
libavcodec/mpegvideoencdsp.c
View File

@ -81,7 +81,7 @@ static int pix_sum_c(uint8_t *pix, int line_size)
static int pix_norm1_c(uint8_t *pix, int line_size)
{
int s = 0, i, j;
uint32_t *sq = ff_square_tab + 256;
const uint32_t *sq = ff_square_tab + 256;
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j += 8) {

2
libavcodec/snowenc.c
View File

@ -179,7 +179,7 @@ static int pix_sum(uint8_t * pix, int line_size, int w, int h)
static int pix_norm1(uint8_t * pix, int line_size, int w)
{
int s, i, j;
uint32_t *sq = ff_square_tab + 256;
const uint32_t *sq = ff_square_tab + 256;
s = 0;
for (i = 0; i < w; i++) {

13
libavcodec/utils.c
View File

@ -104,18 +104,6 @@ AVCodec *av_codec_next(const AVCodec *c)
return first_avcodec;
}
static av_cold void avcodec_init(void)
{
static int initialized = 0;
if (initialized != 0)
return;
initialized = 1;
if (CONFIG_ME_CMP)
ff_me_cmp_init_static();
}
int av_codec_is_encoder(const AVCodec *codec)
{
return codec && (codec->encode_sub || codec->encode2 ||codec->send_frame);
@ -131,7 +119,6 @@ static AVMutex codec_register_mutex = AV_MUTEX_INITIALIZER;
av_cold void avcodec_register(AVCodec *codec)
{
AVCodec **p;
avcodec_init();
ff_mutex_lock(&codec_register_mutex);
p = last_avcodec;