Chiebot-Mirror
/
FFmpeg
mirror of https://github.com/FFmpeg/FFmpeg.git
8
0
Fork 0
Code Issues Projects Releases Wiki Activity

swscale/yuv2rgb: Factor YUVRGB_TABLE_LUMA_HEADROOM out

Browse Source 
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
pull/278/head
Michael Niedermayer 9 years ago
parent 70df51112c
commit 5e5f82a287
2 changed files with 46 additions and 44 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 1
      libswscale/swscale_internal.h
  2. 89
      libswscale/yuv2rgb.c

1
libswscale/swscale_internal.h
Unescape View File

@ -40,6 +40,7 @@
#define STR(s) AV_TOSTRING(s) // AV_STRINGIFY is too long
#define YUVRGB_TABLE_HEADROOM 256
#define YUVRGB_TABLE_LUMA_HEADROOM 0
#define MAX_FILTER_SIZE SWS_MAX_FILTER_SIZE

89
libswscale/yuv2rgb.c
Unescape View File

@ -776,7 +776,8 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
uint16_t *y_table16;
uint32_t *y_table32;
int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
const int yoffs = fullRange ? 384 : 326;
const int yoffs = (fullRange ? 384 : 326) + YUVRGB_TABLE_LUMA_HEADROOM;
const int table_plane_size = 1024 + 2*YUVRGB_TABLE_LUMA_HEADROOM;
int64_t crv = inv_table[0];
int64_t cbu = inv_table[1];
@ -833,10 +834,10 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
return AVERROR(ENOMEM);
switch (bpp) {
case 1:
ALLOC_YUV_TABLE(1024);
ALLOC_YUV_TABLE(table_plane_size);
y_table = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024 - 110; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size - 110; i++) {
y_table[i + 110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
yb += cy;
}
@ -848,60 +849,60 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
rbase = isRgb ? 3 : 0;
gbase = 1;
bbase = isRgb ? 0 : 3;
ALLOC_YUV_TABLE(1024 * 3);
ALLOC_YUV_TABLE(table_plane_size * 3);
y_table = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024 - 110; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size - 110; i++) {
int yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table[i + 110] = (yval >> 7) << rbase;
y_table[i + 37 + 1024] = ((yval + 43) / 85) << gbase;
y_table[i + 110 + 2048] = (yval >> 7) << bbase;
y_table[i + 37 + table_plane_size] = ((yval + 43) / 85) << gbase;
y_table[i + 110 + 2*table_plane_size] = (yval >> 7) << bbase;
yb += cy;
}
fill_table(c->table_rV, 1, crv, y_table + yoffs);
fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 1, cgv);
break;
case 8:
rbase = isRgb ? 5 : 0;
gbase = isRgb ? 2 : 3;
bbase = isRgb ? 0 : 6;
ALLOC_YUV_TABLE(1024 * 3);
ALLOC_YUV_TABLE(table_plane_size * 3);
y_table = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024 - 38; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size - 38; i++) {
int yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table[i + 16] = ((yval + 18) / 36) << rbase;
y_table[i + 16 + 1024] = ((yval + 18) / 36) << gbase;
y_table[i + 37 + 2048] = ((yval + 43) / 85) << bbase;
y_table[i + 16 + table_plane_size] = ((yval + 18) / 36) << gbase;
y_table[i + 37 + 2*table_plane_size] = ((yval + 43) / 85) << bbase;
yb += cy;
}
fill_table(c->table_rV, 1, crv, y_table + yoffs);
fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
fill_table(c->table_gU, 1, cgu, y_table + yoffs + table_plane_size);
fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 1, cgv);
break;
case 12:
rbase = isRgb ? 8 : 0;
gbase = 4;
bbase = isRgb ? 0 : 8;
ALLOC_YUV_TABLE(1024 * 3 * 2);
ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
y_table16 = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table16[i] = (yval >> 4) << rbase;
y_table16[i + 1024] = (yval >> 4) << gbase;
y_table16[i + 2048] = (yval >> 4) << bbase;
y_table16[i + table_plane_size] = (yval >> 4) << gbase;
y_table16[i + 2*table_plane_size] = (yval >> 4) << bbase;
yb += cy;
}
if (isNotNe)
for (i = 0; i < 1024 * 3; i++)
for (i = 0; i < table_plane_size * 3; i++)
y_table16[i] = av_bswap16(y_table16[i]);
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 2, cgv);
break;
case 15:
@ -909,30 +910,30 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
rbase = isRgb ? bpp - 5 : 0;
gbase = 5;
bbase = isRgb ? 0 : (bpp - 5);
ALLOC_YUV_TABLE(1024 * 3 * 2);
ALLOC_YUV_TABLE(table_plane_size * 3 * 2);
y_table16 = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table16[i] = (yval >> 3) << rbase;
y_table16[i + 1024] = (yval >> (18 - bpp)) << gbase;
y_table16[i + 2048] = (yval >> 3) << bbase;
y_table16[i + table_plane_size] = (yval >> (18 - bpp)) << gbase;
y_table16[i + 2*table_plane_size] = (yval >> 3) << bbase;
yb += cy;
}
if (isNotNe)
for (i = 0; i < 1024 * 3; i++)
for (i = 0; i < table_plane_size * 3; i++)
y_table16[i] = av_bswap16(y_table16[i]);
fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + table_plane_size);
fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 2, cgv);
break;
case 24:
case 48:
ALLOC_YUV_TABLE(1024);
ALLOC_YUV_TABLE(table_plane_size);
y_table = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
yb += cy;
}
@ -951,20 +952,20 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
if (!needAlpha)
abase = (base + 24) & 31;
ALLOC_YUV_TABLE(1024 * 3 * 4);
ALLOC_YUV_TABLE(table_plane_size * 3 * 4);
y_table32 = c->yuvTable;
yb = -(384 << 16) - oy;
for (i = 0; i < 1024; i++) {
yb = -(384 << 16) - YUVRGB_TABLE_LUMA_HEADROOM*cy - oy;
for (i = 0; i < table_plane_size; i++) {
unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
y_table32[i] = (yval << rbase) +
(needAlpha ? 0 : (255u << abase));
y_table32[i + 1024] = yval << gbase;
y_table32[i + 2048] = yval << bbase;
y_table32[i + table_plane_size] = yval << gbase;
y_table32[i + 2*table_plane_size] = yval << bbase;
yb += cy;
}
fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + table_plane_size);
fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2*table_plane_size);
fill_gv_table(c->table_gV, 4, cgv);
break;
default:

Write Preview
Loading…
Cancel
Save