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hevcdsp_template: Templatize IDCT

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Integrated to Libav by Josh de Kock <josh@itanimul.li>.

Signed-off-by: Alexandra Hájková <alexandra@khirnov.net>
This commit is contained in:
Mickaël Raulet 2016-07-04 15:31:16 +02:00 committed by Luca Barbato
parent 1bd890ad17
commit 4f247de3b7
1 changed files with 30 additions and 78 deletions
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108
libavcodec/hevcdsp_template.c
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@ -154,26 +154,6 @@ static void FUNC(transform_4x4_luma)(int16_t *coeffs)
assign(dst[3 * dstep], e0 - o0); \
} while (0)
static void FUNC(idct_4x4)(int16_t *coeffs)
{
int i;
int shift = 7;
int add = 1 << (shift - 1);
int16_t *src = coeffs;
for (i = 0; i < 4; i++) {
TR_4(src, src, 4, 4, SCALE);
src++;
}
shift = 20 - BIT_DEPTH;
add = 1 << (shift - 1);
for (i = 0; i < 4; i++) {
TR_4(coeffs, coeffs, 1, 1, SCALE);
coeffs += 4;
}
}
#define TR_8(dst, src, dstep, sstep, assign) \
do { \
int i, j; \
@ -222,67 +202,39 @@ static void FUNC(idct_4x4)(int16_t *coeffs)
} \
} while (0)
static void FUNC(idct_8x8)(int16_t *coeffs)
{
int i;
int shift = 7;
int add = 1 << (shift - 1);
int16_t *src = coeffs;
for (i = 0; i < 8; i++) {
TR_8(src, src, 8, 8, SCALE);
src++;
}
shift = 20 - BIT_DEPTH;
add = 1 << (shift - 1);
for (i = 0; i < 8; i++) {
TR_8(coeffs, coeffs, 1, 1, SCALE);
coeffs += 8;
}
#define IDCT(H) \
static void FUNC(idct_ ## H ## x ## H )(int16_t *coeffs) \
{ \
int i; \
int shift = 7; \
int add = 1 << (shift - 1); \
int16_t *src = coeffs; \
\
for (i = 0; i < H; i++) { \
TR_ ## H(src, src, H, H, SCALE); \
src++; \
} \
\
shift = 20 - BIT_DEPTH; \
add = 1 << (shift - 1); \
for (i = 0; i < H; i++) { \
TR_ ## H(coeffs, coeffs, 1, 1, SCALE); \
coeffs += H; \
} \
}
static void FUNC(idct_16x16)(int16_t *coeffs)
{
int i;
int shift = 7;
int add = 1 << (shift - 1);
int16_t *src = coeffs;
IDCT( 4)
IDCT( 8)
IDCT(16)
IDCT(32)
#undef TR_4
#undef TR_8
#undef TR_16
#undef TR_32
for (i = 0; i < 16; i++) {
TR_16(src, src, 16, 16, SCALE);
src++;
}
shift = 20 - BIT_DEPTH;
add = 1 << (shift - 1);
for (i = 0; i < 16; i++) {
TR_16(coeffs, coeffs, 1, 1, SCALE);
coeffs += 16;
}
}
static void FUNC(idct_32x32)(int16_t *coeffs)
{
int i;
int shift = 7;
int add = 1 << (shift - 1);
int16_t *src = coeffs;
for (i = 0; i < 32; i++) {
TR_32(src, src, 32, 32, SCALE);
src++;
}
src = coeffs;
shift = 20 - BIT_DEPTH;
add = 1 << (shift - 1);
for (i = 0; i < 32; i++) {
TR_32(coeffs, coeffs, 1, 1, SCALE);
coeffs += 32;
}
}
#undef SET
#undef SCALE
#undef ADD_AND_SCALE
static void FUNC(sao_band_filter)(uint8_t *_dst, uint8_t *_src,
ptrdiff_t stride, SAOParams *sao,