FFmpeg
Macros | Functions | Variables
idct.c File Reference
#include "libavcodec/wasm/hevc/idct.h"
#include <wasm_simd128.h>
#include "libavutil/mem_internal.h"

Go to the source code of this file.

Macros

#define tr_4x4_8(in0, in1, in2, in3, dst0, dst1, dst2, dst3, trans, half0, half1)
 
#define tr_8x4(src0, src1, half0, half1, trans, shift)
 
#define load16(x1, x3, x2, in0, in1, in2, in3)
 
#define bufferfly(e, o, p, m)
 
#define sum_sub(out, in0, in1, operation, half)   out = wasm_i32x4_ ## operation (out, wasm_i32x4_extmul_ ## half ## _i16x8(in0, in1));
 
#define add_member(in, t0, t1, t2, t3, t4, t5, t6, t7, op0, op1, op2, op3, op4, op5, op6, op7, half)
 
#define butterfly16(in0, in1, in2, in3, in4, in5, in6, in7)
 
#define add_member32(in, t0, t1, t2, t3, op0, op1, op2, op3, half)
 
#define butterfly32(in0, in1, in2, in3, out)
 

Functions

static void transpose_4x8h (v128_t *src)
 
static void transpose_8x8h (v128_t *src)
 
static void tr_4x4 (v128_t *src, v128_t *trans, int shift)
 
static void idct_4x4 (int16_t *coeffs, int bit_depth)
 
void ff_hevc_idct_4x4_8_simd128 (int16_t *coeffs, int col_limit)
 
void ff_hevc_idct_4x4_10_simd128 (int16_t *coeffs, int col_limit)
 
static void shift_narrow_low (v128_t src, v128_t *dst, v128_t add, int shift)
 
static void shift_narrow_high (v128_t src, v128_t *dst, v128_t add, int shift)
 
static void idct_8x8 (int16_t *coeffs, int bit_depth)
 
void ff_hevc_idct_8x8_8_simd128 (int16_t *coeffs, int col_limit)
 
void ff_hevc_idct_8x8_10_simd128 (int16_t *coeffs, int col_limit)
 
static void tr16_8x4 (v128_t in0, v128_t in1, v128_t in2, v128_t in3, const v128_t *trans, char *sp, int offset)
 
static void scale (v128_t *out0, v128_t *out1, v128_t *out2, v128_t *out3, v128_t in0, v128_t in1, v128_t in2, v128_t in3, v128_t in4, v128_t in5, v128_t in6, v128_t in7, int shift)
 
static void transpose16_4x4_2 (v128_t *r0, v128_t *r1, v128_t *r2, v128_t *r3)
 
static void store16 (v128_t in0, v128_t in1, v128_t in2, v128_t in3, char *x1, char *x3, int x1_step, int x3_step)
 
static void store_to_stack (char *sp, int off1, int off2, v128_t in0, v128_t in2, v128_t in4, v128_t in6, v128_t in7, v128_t in5, v128_t in3, v128_t in1)
 
static void tr_16x4 (char *src, char *buf, char *sp, int shift, int offset, int step)
 
static void idct_16x16 (char *coeffs, int bit_depth)
 
void ff_hevc_idct_16x16_8_simd128 (int16_t *coeffs, int col_limit)
 
void ff_hevc_idct_16x16_10_simd128 (int16_t *coeffs, int col_limit)
 
static void tr_32x4 (char *x5, char *x11, char *sp, int shift)
 
static void idct_32x32 (char *coeffs, int bit_depth)
 
void ff_hevc_idct_32x32_8_simd128 (int16_t *coeffs, int col_limit)
 
void ff_hevc_idct_32x32_10_simd128 (int16_t *coeffs, int col_limit)
 

Variables

static const int8_t transform []
 

Macro Definition Documentation

◆ tr_4x4_8

#define tr_4x4_8 (   in0,
  in1,
  in2,
  in3,
  dst0,
  dst1,
  dst2,
  dst3,
  trans,
  half0,
  half1 
)
Value:
do { \
v128_t e0, e1, o0, o1; \
v128_t tmp[4]; \
\
e0 = wasm_i32x4_extmul_ ## half0 ## _i16x8(in0, trans[0]); \
e1 = e0; \
o0 = wasm_i32x4_extmul_ ## half0 ## _i16x8(in1, trans[1]); \
o1 = wasm_i32x4_extmul_ ## half0 ## _i16x8(in1, trans[3]); \
\
tmp[0] = wasm_i32x4_extmul_ ## half1 ## _i16x8(in2, trans[0]); \
tmp[1] = wasm_i32x4_extmul_ ## half1 ## _i16x8(in2, trans[0]); \
tmp[2] = wasm_i32x4_extmul_ ## half1 ## _i16x8(in3, trans[3]); \
tmp[3] = wasm_i32x4_extmul_ ## half1 ## _i16x8(in3, trans[1]); \
e0 = wasm_i32x4_add(e0, tmp[0]); \
e1 = wasm_i32x4_sub(e1, tmp[1]); \
o0 = wasm_i32x4_add(o0, tmp[2]); \
o1 = wasm_i32x4_sub(o1, tmp[3]); \
dst0 = wasm_i32x4_add(e0, o0); \
dst1 = wasm_i32x4_add(e1, o1); \
dst2 = wasm_i32x4_sub(e1, o1); \
dst3 = wasm_i32x4_sub(e0, o0); \
} while (0)

Definition at line 142 of file idct.c.

◆ tr_8x4

#define tr_8x4 (   src0,
  src1,
  half0,
  half1,
  trans,
  shift 
)

Definition at line 166 of file idct.c.

◆ load16

#define load16 (   x1,
  x3,
  x2,
  in0,
  in1,
  in2,
  in3 
)
Value:
in0 = wasm_v128_load64_zero(x1); \
in0 = wasm_v128_load64_lane(x3, in0, 1); \
x1 += x2; \
x3 += x2; \
in1 = wasm_v128_load64_zero(x1); \
in1 = wasm_v128_load64_lane(x3, in1, 1); \
x1 += x2; \
x3 += x2; \
in2 = wasm_v128_load64_zero(x1); \
in2 = wasm_v128_load64_lane(x3, in2, 1); \
x1 += x2; \
x3 += x2; \
in3 = wasm_v128_load64_zero(x1); \
in3 = wasm_v128_load64_lane(x3, in3, 1); \
x1 += x2; \
x3 += x2; \

Definition at line 264 of file idct.c.

◆ bufferfly

#define bufferfly (   e,
  o,
  p,
  m 
)
Value:
p = wasm_i32x4_add(e, o); \
m = wasm_i32x4_sub(e, o); \

Definition at line 282 of file idct.c.

◆ sum_sub

#define sum_sub (   out,
  in0,
  in1,
  operation,
  half 
)    out = wasm_i32x4_ ## operation (out, wasm_i32x4_extmul_ ## half ## _i16x8(in0, in1));

Definition at line 436 of file idct.c.

◆ add_member

#define add_member (   in,
  t0,
  t1,
  t2,
  t3,
  t4,
  t5,
  t6,
  t7,
  op0,
  op1,
  op2,
  op3,
  op4,
  op5,
  op6,
  op7,
  half 
)
Value:
do { \
sum_sub(v21, in, t0, op0, half) \
sum_sub(v22, in, t1, op1, half) \
sum_sub(v23, in, t2, op2, half) \
sum_sub(v24, in, t3, op3, half) \
sum_sub(v25, in, t4, op4, half) \
sum_sub(v26, in, t5, op5, half) \
sum_sub(v27, in, t6, op6, half) \
sum_sub(v28, in, t7, op7, half) \
} while (0)

Definition at line 439 of file idct.c.

◆ butterfly16

#define butterfly16 (   in0,
  in1,
  in2,
  in3,
  in4,
  in5,
  in6,
  in7 
)
Value:
do { \
v20 = wasm_i32x4_add(in0, in1); \
in0 = wasm_i32x4_sub(in0, in1); \
in1 = wasm_i32x4_add(in2, in3); \
in2 = wasm_i32x4_sub(in2, in3); \
in3 = wasm_i32x4_add(in4, in5); \
in4 = wasm_i32x4_sub(in4, in5); \
in5 = wasm_i32x4_add(in6, in7); \
in6 = wasm_i32x4_sub(in6, in7); \
} while (0)

Definition at line 451 of file idct.c.

◆ add_member32

#define add_member32 (   in,
  t0,
  t1,
  t2,
  t3,
  op0,
  op1,
  op2,
  op3,
  half 
)
Value:
do { \
sum_sub(v24, in, t0, op0, half) \
sum_sub(v25, in, t1, op1, half) \
sum_sub(v26, in, t2, op2, half) \
sum_sub(v27, in, t3, op3, half) \
} while (0)

Definition at line 606 of file idct.c.

◆ butterfly32

#define butterfly32 (   in0,
  in1,
  in2,
  in3,
  out 
)
Value:
do { \
out = wasm_i32x4_add(in0, in1); \
in0 = wasm_i32x4_sub(in0, in1); \
in1 = wasm_i32x4_add(in2, in3); \
in2 = wasm_i32x4_sub(in2, in3); \
} while (0)

Definition at line 614 of file idct.c.

Function Documentation

◆ transpose_4x8h()

static void transpose_4x8h ( v128_t *  src)
inlinestatic

Definition at line 34 of file idct.c.

Referenced by idct_4x4(), and transpose_8x8h().

◆ transpose_8x8h()

static void transpose_8x8h ( v128_t *  src)
inlinestatic

Definition at line 47 of file idct.c.

Referenced by idct_8x8().

◆ tr_4x4()

static void tr_4x4 ( v128_t *  src,
v128_t *  trans,
int  shift 
)
inlinestatic

Definition at line 53 of file idct.c.

Referenced by idct_4x4().

◆ idct_4x4()

static void idct_4x4 ( int16_t *  coeffs,
int  bit_depth 
)
static

Definition at line 91 of file idct.c.

Referenced by ff_hevc_idct_4x4_10_simd128(), and ff_hevc_idct_4x4_8_simd128().

◆ ff_hevc_idct_4x4_8_simd128()

void ff_hevc_idct_4x4_8_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 118 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ ff_hevc_idct_4x4_10_simd128()

void ff_hevc_idct_4x4_10_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 123 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ shift_narrow_low()

static void shift_narrow_low ( v128_t  src,
v128_t *  dst,
v128_t  add,
int  shift 
)
inlinestatic

Definition at line 128 of file idct.c.

◆ shift_narrow_high()

static void shift_narrow_high ( v128_t  src,
v128_t *  dst,
v128_t  add,
int  shift 
)
inlinestatic

Definition at line 135 of file idct.c.

◆ idct_8x8()

static void idct_8x8 ( int16_t *  coeffs,
int  bit_depth 
)
static

Definition at line 210 of file idct.c.

Referenced by ff_hevc_idct_8x8_10_simd128(), and ff_hevc_idct_8x8_8_simd128().

◆ ff_hevc_idct_8x8_8_simd128()

void ff_hevc_idct_8x8_8_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 254 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ ff_hevc_idct_8x8_10_simd128()

void ff_hevc_idct_8x8_10_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 259 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ tr16_8x4()

static void tr16_8x4 ( v128_t  in0,
v128_t  in1,
v128_t  in2,
v128_t  in3,
const v128_t *  trans,
char *  sp,
int  offset 
)
static

Definition at line 286 of file idct.c.

Referenced by tr_16x4().

◆ scale()

static void scale ( v128_t *  out0,
v128_t *  out1,
v128_t *  out2,
v128_t *  out3,
v128_t  in0,
v128_t  in1,
v128_t  in2,
v128_t  in3,
v128_t  in4,
v128_t  in5,
v128_t  in6,
v128_t  in7,
int  shift 
)
static

Definition at line 328 of file idct.c.

Referenced by tr_16x4(), and tr_32x4().

◆ transpose16_4x4_2()

static void transpose16_4x4_2 ( v128_t *  r0,
v128_t *  r1,
v128_t *  r2,
v128_t *  r3 
)
static

Definition at line 359 of file idct.c.

Referenced by tr_16x4(), and tr_32x4().

◆ store16()

static void store16 ( v128_t  in0,
v128_t  in1,
v128_t  in2,
v128_t  in3,
char *  x1,
char *  x3,
int  x1_step,
int  x3_step 
)
static

Definition at line 390 of file idct.c.

Referenced by tr_16x4(), and tr_32x4().

◆ store_to_stack()

static void store_to_stack ( char *  sp,
int  off1,
int  off2,
v128_t  in0,
v128_t  in2,
v128_t  in4,
v128_t  in6,
v128_t  in7,
v128_t  in5,
v128_t  in3,
v128_t  in1 
)
static

Definition at line 413 of file idct.c.

Referenced by tr_16x4().

◆ tr_16x4()

static void tr_16x4 ( char *  src,
char *  buf,
char *  sp,
int  shift,
int  offset,
int  step 
)
static

Definition at line 463 of file idct.c.

Referenced by idct_16x16(), and tr_32x4().

◆ idct_16x16()

static void idct_16x16 ( char *  coeffs,
int  bit_depth 
)
static

Definition at line 579 of file idct.c.

Referenced by ff_hevc_idct_16x16_10_simd128(), and ff_hevc_idct_16x16_8_simd128().

◆ ff_hevc_idct_16x16_8_simd128()

void ff_hevc_idct_16x16_8_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 596 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ ff_hevc_idct_16x16_10_simd128()

void ff_hevc_idct_16x16_10_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 601 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ tr_32x4()

static void tr_32x4 ( char *  x5,
char *  x11,
char *  sp,
int  shift 
)
static

Definition at line 622 of file idct.c.

Referenced by idct_32x32().

◆ idct_32x32()

static void idct_32x32 ( char *  coeffs,
int  bit_depth 
)
static

Definition at line 843 of file idct.c.

Referenced by ff_hevc_idct_32x32_10_simd128(), and ff_hevc_idct_32x32_8_simd128().

◆ ff_hevc_idct_32x32_8_simd128()

void ff_hevc_idct_32x32_8_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 861 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

◆ ff_hevc_idct_32x32_10_simd128()

void ff_hevc_idct_32x32_10_simd128 ( int16_t *  coeffs,
int  col_limit 
)

Definition at line 866 of file idct.c.

Referenced by ff_hevc_dsp_init_wasm().

Variable Documentation

◆ transform

const int8_t transform[]
static
Initial value:
= {
64, 83, 64, 36, 89, 75, 50, 18,
90, 87, 80, 70, 57, 43, 25, 9,
90, 90, 88, 85, 82, 78, 73, 67,
61, 54, 46, 38, 31, 22, 13, 4,
}

Definition at line 27 of file idct.c.

Referenced by idct_4x4(), idct_8x8(), tr_16x4(), and tr_32x4().

half
static uint8_t half(int a, int b)
Definition: mobiclip.c:539
tmp
static uint8_t tmp[20]
Definition: aes_ctr.c:47
Generated on Fri Aug 22 2025 13:39:09 for FFmpeg by   doxygen 1.8.17