mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
6df42f9874
* qatar/master: SBR DSP: fix SSE code to not use SSE2 instructions. cpu: initialize mask to -1, so that by default, optimizations are used. error_resilience: initialize s->block_index[]. svq3: protect against negative quantizers. Don't use ff_cropTbl[] for IDCT. swscale: make filterPos 32bit. FATE: add CPUFLAGS variable, mapping to -cpuflags avconv option. avconv: add -cpuflags option for setting supported cpuflags. cpu: add av_set_cpu_flags_mask(). libx264: Allow overriding the sliced threads option avconv: fix counting encoded video size. Conflicts: doc/APIchanges doc/fate.texi doc/ffmpeg.texi ffmpeg.c libavcodec/h264idct_template.c libavcodec/svq3.c libavutil/avutil.h libavutil/cpu.c libavutil/cpu.h libswscale/swscale.c tests/Makefile tests/fate-run.sh tests/regression-funcs.sh Merged-by: Michael Niedermayer <michaelni@gmx.at>
325 lines
10 KiB
C
325 lines
10 KiB
C
/*
|
|
* Simple IDCT
|
|
*
|
|
* Copyright (c) 2001 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* simpleidct in C.
|
|
*/
|
|
|
|
/*
|
|
based upon some outcommented c code from mpeg2dec (idct_mmx.c
|
|
written by Aaron Holtzman <aholtzma@ess.engr.uvic.ca>)
|
|
*/
|
|
|
|
#include "bit_depth_template.c"
|
|
|
|
#undef W1
|
|
#undef W2
|
|
#undef W3
|
|
#undef W4
|
|
#undef W5
|
|
#undef W6
|
|
#undef W7
|
|
#undef ROW_SHIFT
|
|
#undef COL_SHIFT
|
|
#undef DC_SHIFT
|
|
#undef MUL
|
|
#undef MAC
|
|
|
|
#if BIT_DEPTH == 8
|
|
|
|
#define W1 22725 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
#define W2 21407 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
#define W3 19266 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
#define W4 16383 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
#define W5 12873 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
#define W6 8867 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
#define W7 4520 //cos(i*M_PI/16)*sqrt(2)*(1<<14) + 0.5
|
|
|
|
#define ROW_SHIFT 11
|
|
#define COL_SHIFT 20
|
|
#define DC_SHIFT 3
|
|
|
|
#define MUL(a, b) MUL16(a, b)
|
|
#define MAC(a, b, c) MAC16(a, b, c)
|
|
|
|
#elif BIT_DEPTH == 10
|
|
|
|
#define W1 90901
|
|
#define W2 85627
|
|
#define W3 77062
|
|
#define W4 65535
|
|
#define W5 51491
|
|
#define W6 35468
|
|
#define W7 18081
|
|
|
|
#define ROW_SHIFT 15
|
|
#define COL_SHIFT 20
|
|
#define DC_SHIFT 1
|
|
|
|
#define MUL(a, b) ((a) * (b))
|
|
#define MAC(a, b, c) ((a) += (b) * (c))
|
|
|
|
#else
|
|
|
|
#error "Unsupported bitdepth"
|
|
|
|
#endif
|
|
|
|
static inline void FUNC(idctRowCondDC)(DCTELEM *row, int extra_shift)
|
|
{
|
|
int a0, a1, a2, a3, b0, b1, b2, b3;
|
|
|
|
#if HAVE_FAST_64BIT
|
|
#define ROW0_MASK (0xffffLL << 48 * HAVE_BIGENDIAN)
|
|
if (((((uint64_t *)row)[0] & ~ROW0_MASK) | ((uint64_t *)row)[1]) == 0) {
|
|
uint64_t temp;
|
|
if (DC_SHIFT - extra_shift > 0) {
|
|
temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff;
|
|
} else {
|
|
temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff;
|
|
}
|
|
temp += temp << 16;
|
|
temp += temp << 32;
|
|
((uint64_t *)row)[0] = temp;
|
|
((uint64_t *)row)[1] = temp;
|
|
return;
|
|
}
|
|
#else
|
|
if (!(((uint32_t*)row)[1] |
|
|
((uint32_t*)row)[2] |
|
|
((uint32_t*)row)[3] |
|
|
row[1])) {
|
|
uint32_t temp;
|
|
if (DC_SHIFT - extra_shift > 0) {
|
|
temp = (row[0] << (DC_SHIFT - extra_shift)) & 0xffff;
|
|
} else {
|
|
temp = (row[0] >> (extra_shift - DC_SHIFT)) & 0xffff;
|
|
}
|
|
temp += temp << 16;
|
|
((uint32_t*)row)[0]=((uint32_t*)row)[1] =
|
|
((uint32_t*)row)[2]=((uint32_t*)row)[3] = temp;
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
a0 = (W4 * row[0]) + (1 << (ROW_SHIFT - 1));
|
|
a1 = a0;
|
|
a2 = a0;
|
|
a3 = a0;
|
|
|
|
a0 += W2 * row[2];
|
|
a1 += W6 * row[2];
|
|
a2 -= W6 * row[2];
|
|
a3 -= W2 * row[2];
|
|
|
|
b0 = MUL(W1, row[1]);
|
|
MAC(b0, W3, row[3]);
|
|
b1 = MUL(W3, row[1]);
|
|
MAC(b1, -W7, row[3]);
|
|
b2 = MUL(W5, row[1]);
|
|
MAC(b2, -W1, row[3]);
|
|
b3 = MUL(W7, row[1]);
|
|
MAC(b3, -W5, row[3]);
|
|
|
|
if (AV_RN64A(row + 4)) {
|
|
a0 += W4*row[4] + W6*row[6];
|
|
a1 += - W4*row[4] - W2*row[6];
|
|
a2 += - W4*row[4] + W2*row[6];
|
|
a3 += W4*row[4] - W6*row[6];
|
|
|
|
MAC(b0, W5, row[5]);
|
|
MAC(b0, W7, row[7]);
|
|
|
|
MAC(b1, -W1, row[5]);
|
|
MAC(b1, -W5, row[7]);
|
|
|
|
MAC(b2, W7, row[5]);
|
|
MAC(b2, W3, row[7]);
|
|
|
|
MAC(b3, W3, row[5]);
|
|
MAC(b3, -W1, row[7]);
|
|
}
|
|
|
|
row[0] = (a0 + b0) >> (ROW_SHIFT + extra_shift);
|
|
row[7] = (a0 - b0) >> (ROW_SHIFT + extra_shift);
|
|
row[1] = (a1 + b1) >> (ROW_SHIFT + extra_shift);
|
|
row[6] = (a1 - b1) >> (ROW_SHIFT + extra_shift);
|
|
row[2] = (a2 + b2) >> (ROW_SHIFT + extra_shift);
|
|
row[5] = (a2 - b2) >> (ROW_SHIFT + extra_shift);
|
|
row[3] = (a3 + b3) >> (ROW_SHIFT + extra_shift);
|
|
row[4] = (a3 - b3) >> (ROW_SHIFT + extra_shift);
|
|
}
|
|
|
|
#define IDCT_COLS do { \
|
|
a0 = W4 * (col[8*0] + ((1<<(COL_SHIFT-1))/W4)); \
|
|
a1 = a0; \
|
|
a2 = a0; \
|
|
a3 = a0; \
|
|
\
|
|
a0 += W2*col[8*2]; \
|
|
a1 += W6*col[8*2]; \
|
|
a2 += -W6*col[8*2]; \
|
|
a3 += -W2*col[8*2]; \
|
|
\
|
|
b0 = MUL(W1, col[8*1]); \
|
|
b1 = MUL(W3, col[8*1]); \
|
|
b2 = MUL(W5, col[8*1]); \
|
|
b3 = MUL(W7, col[8*1]); \
|
|
\
|
|
MAC(b0, W3, col[8*3]); \
|
|
MAC(b1, -W7, col[8*3]); \
|
|
MAC(b2, -W1, col[8*3]); \
|
|
MAC(b3, -W5, col[8*3]); \
|
|
\
|
|
if (col[8*4]) { \
|
|
a0 += W4*col[8*4]; \
|
|
a1 += -W4*col[8*4]; \
|
|
a2 += -W4*col[8*4]; \
|
|
a3 += W4*col[8*4]; \
|
|
} \
|
|
\
|
|
if (col[8*5]) { \
|
|
MAC(b0, W5, col[8*5]); \
|
|
MAC(b1, -W1, col[8*5]); \
|
|
MAC(b2, W7, col[8*5]); \
|
|
MAC(b3, W3, col[8*5]); \
|
|
} \
|
|
\
|
|
if (col[8*6]) { \
|
|
a0 += W6*col[8*6]; \
|
|
a1 += -W2*col[8*6]; \
|
|
a2 += W2*col[8*6]; \
|
|
a3 += -W6*col[8*6]; \
|
|
} \
|
|
\
|
|
if (col[8*7]) { \
|
|
MAC(b0, W7, col[8*7]); \
|
|
MAC(b1, -W5, col[8*7]); \
|
|
MAC(b2, W3, col[8*7]); \
|
|
MAC(b3, -W1, col[8*7]); \
|
|
} \
|
|
} while (0)
|
|
|
|
static inline void FUNC(idctSparseColPut)(pixel *dest, int line_size,
|
|
DCTELEM *col)
|
|
{
|
|
int a0, a1, a2, a3, b0, b1, b2, b3;
|
|
|
|
IDCT_COLS;
|
|
|
|
dest[0] = av_clip_pixel((a0 + b0) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a1 + b1) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a2 + b2) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a3 + b3) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a3 - b3) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a2 - b2) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a1 - b1) >> COL_SHIFT);
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel((a0 - b0) >> COL_SHIFT);
|
|
}
|
|
|
|
static inline void FUNC(idctSparseColAdd)(pixel *dest, int line_size,
|
|
DCTELEM *col)
|
|
{
|
|
int a0, a1, a2, a3, b0, b1, b2, b3;
|
|
|
|
IDCT_COLS;
|
|
|
|
dest[0] = av_clip_pixel(dest[0] + ((a0 + b0) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a1 + b1) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a2 + b2) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a3 + b3) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a3 - b3) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a2 - b2) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a1 - b1) >> COL_SHIFT));
|
|
dest += line_size;
|
|
dest[0] = av_clip_pixel(dest[0] + ((a0 - b0) >> COL_SHIFT));
|
|
}
|
|
|
|
static inline void FUNC(idctSparseCol)(DCTELEM *col)
|
|
{
|
|
int a0, a1, a2, a3, b0, b1, b2, b3;
|
|
|
|
IDCT_COLS;
|
|
|
|
col[0 ] = ((a0 + b0) >> COL_SHIFT);
|
|
col[8 ] = ((a1 + b1) >> COL_SHIFT);
|
|
col[16] = ((a2 + b2) >> COL_SHIFT);
|
|
col[24] = ((a3 + b3) >> COL_SHIFT);
|
|
col[32] = ((a3 - b3) >> COL_SHIFT);
|
|
col[40] = ((a2 - b2) >> COL_SHIFT);
|
|
col[48] = ((a1 - b1) >> COL_SHIFT);
|
|
col[56] = ((a0 - b0) >> COL_SHIFT);
|
|
}
|
|
|
|
void FUNC(ff_simple_idct_put)(uint8_t *dest_, int line_size, DCTELEM *block)
|
|
{
|
|
pixel *dest = (pixel *)dest_;
|
|
int i;
|
|
|
|
line_size /= sizeof(pixel);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
FUNC(idctRowCondDC)(block + i*8, 0);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
FUNC(idctSparseColPut)(dest + i, line_size, block + i);
|
|
}
|
|
|
|
void FUNC(ff_simple_idct_add)(uint8_t *dest_, int line_size, DCTELEM *block)
|
|
{
|
|
pixel *dest = (pixel *)dest_;
|
|
int i;
|
|
|
|
line_size /= sizeof(pixel);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
FUNC(idctRowCondDC)(block + i*8, 0);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
FUNC(idctSparseColAdd)(dest + i, line_size, block + i);
|
|
}
|
|
|
|
void FUNC(ff_simple_idct)(DCTELEM *block)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 8; i++)
|
|
FUNC(idctRowCondDC)(block + i*8, 0);
|
|
|
|
for (i = 0; i < 8; i++)
|
|
FUNC(idctSparseCol)(block + i);
|
|
}
|