forked from KolibriOS/kolibrios
317 lines
9.9 KiB
C
317 lines
9.9 KiB
C
|
/*
|
||
|
|
* 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
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include "libavutil/attributes.h"
|
||
|
|
#include "libavutil/common.h"
|
||
|
|
#include "avcodec.h"
|
||
|
|
#include "dct.h"
|
||
|
|
#include "faanidct.h"
|
||
|
|
#include "idctdsp.h"
|
||
|
|
#include "simple_idct.h"
|
||
|
|
#include "xvididct.h"
|
||
|
|
|
||
|
|
av_cold void ff_init_scantable(uint8_t *permutation, ScanTable *st,
|
||
|
|
const uint8_t *src_scantable)
|
||
|
|
{
|
||
|
|
int i, end;
|
||
|
|
|
||
|
|
st->scantable = src_scantable;
|
||
|
|
|
||
|
|
for (i = 0; i < 64; i++) {
|
||
|
|
int j = src_scantable[i];
|
||
|
|
st->permutated[i] = permutation[j];
|
||
|
|
}
|
||
|
|
|
||
|
|
end = -1;
|
||
|
|
for (i = 0; i < 64; i++) {
|
||
|
|
int j = st->permutated[i];
|
||
|
|
if (j > end)
|
||
|
|
end = j;
|
||
|
|
st->raster_end[i] = end;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
av_cold void ff_init_scantable_permutation(uint8_t *idct_permutation,
|
||
|
|
enum idct_permutation_type perm_type)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (ARCH_X86)
|
||
|
|
if (ff_init_scantable_permutation_x86(idct_permutation,
|
||
|
|
perm_type))
|
||
|
|
return;
|
||
|
|
|
||
|
|
switch (perm_type) {
|
||
|
|
case FF_IDCT_PERM_NONE:
|
||
|
|
for (i = 0; i < 64; i++)
|
||
|
|
idct_permutation[i] = i;
|
||
|
|
break;
|
||
|
|
case FF_IDCT_PERM_LIBMPEG2:
|
||
|
|
for (i = 0; i < 64; i++)
|
||
|
|
idct_permutation[i] = (i & 0x38) | ((i & 6) >> 1) | ((i & 1) << 2);
|
||
|
|
break;
|
||
|
|
case FF_IDCT_PERM_TRANSPOSE:
|
||
|
|
for (i = 0; i < 64; i++)
|
||
|
|
idct_permutation[i] = ((i & 7) << 3) | (i >> 3);
|
||
|
|
break;
|
||
|
|
case FF_IDCT_PERM_PARTTRANS:
|
||
|
|
for (i = 0; i < 64; i++)
|
||
|
|
idct_permutation[i] = (i & 0x24) | ((i & 3) << 3) | ((i >> 3) & 3);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
av_log(NULL, AV_LOG_ERROR,
|
||
|
|
"Internal error, IDCT permutation not set\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void (*ff_put_pixels_clamped)(const int16_t *block, uint8_t *pixels, ptrdiff_t line_size);
|
||
|
|
void (*ff_add_pixels_clamped)(const int16_t *block, uint8_t *pixels, ptrdiff_t line_size);
|
||
|
|
|
||
|
|
static void put_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
|
||
|
|
ptrdiff_t line_size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for (i = 0; i < 8; i++) {
|
||
|
|
pixels[0] = av_clip_uint8(block[0]);
|
||
|
|
pixels[1] = av_clip_uint8(block[1]);
|
||
|
|
pixels[2] = av_clip_uint8(block[2]);
|
||
|
|
pixels[3] = av_clip_uint8(block[3]);
|
||
|
|
pixels[4] = av_clip_uint8(block[4]);
|
||
|
|
pixels[5] = av_clip_uint8(block[5]);
|
||
|
|
pixels[6] = av_clip_uint8(block[6]);
|
||
|
|
pixels[7] = av_clip_uint8(block[7]);
|
||
|
|
|
||
|
|
pixels += line_size;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void put_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels,
|
||
|
|
int line_size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for(i=0;i<4;i++) {
|
||
|
|
pixels[0] = av_clip_uint8(block[0]);
|
||
|
|
pixels[1] = av_clip_uint8(block[1]);
|
||
|
|
pixels[2] = av_clip_uint8(block[2]);
|
||
|
|
pixels[3] = av_clip_uint8(block[3]);
|
||
|
|
|
||
|
|
pixels += line_size;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void put_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels,
|
||
|
|
int line_size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for(i=0;i<2;i++) {
|
||
|
|
pixels[0] = av_clip_uint8(block[0]);
|
||
|
|
pixels[1] = av_clip_uint8(block[1]);
|
||
|
|
|
||
|
|
pixels += line_size;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void put_signed_pixels_clamped_c(const int16_t *block,
|
||
|
|
uint8_t *av_restrict pixels,
|
||
|
|
ptrdiff_t line_size)
|
||
|
|
{
|
||
|
|
int i, j;
|
||
|
|
|
||
|
|
for (i = 0; i < 8; i++) {
|
||
|
|
for (j = 0; j < 8; j++) {
|
||
|
|
if (*block < -128)
|
||
|
|
*pixels = 0;
|
||
|
|
else if (*block > 127)
|
||
|
|
*pixels = 255;
|
||
|
|
else
|
||
|
|
*pixels = (uint8_t) (*block + 128);
|
||
|
|
block++;
|
||
|
|
pixels++;
|
||
|
|
}
|
||
|
|
pixels += (line_size - 8);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void add_pixels_clamped_c(const int16_t *block, uint8_t *av_restrict pixels,
|
||
|
|
ptrdiff_t line_size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for (i = 0; i < 8; i++) {
|
||
|
|
pixels[0] = av_clip_uint8(pixels[0] + block[0]);
|
||
|
|
pixels[1] = av_clip_uint8(pixels[1] + block[1]);
|
||
|
|
pixels[2] = av_clip_uint8(pixels[2] + block[2]);
|
||
|
|
pixels[3] = av_clip_uint8(pixels[3] + block[3]);
|
||
|
|
pixels[4] = av_clip_uint8(pixels[4] + block[4]);
|
||
|
|
pixels[5] = av_clip_uint8(pixels[5] + block[5]);
|
||
|
|
pixels[6] = av_clip_uint8(pixels[6] + block[6]);
|
||
|
|
pixels[7] = av_clip_uint8(pixels[7] + block[7]);
|
||
|
|
pixels += line_size;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void add_pixels_clamped4_c(const int16_t *block, uint8_t *av_restrict pixels,
|
||
|
|
int line_size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for(i=0;i<4;i++) {
|
||
|
|
pixels[0] = av_clip_uint8(pixels[0] + block[0]);
|
||
|
|
pixels[1] = av_clip_uint8(pixels[1] + block[1]);
|
||
|
|
pixels[2] = av_clip_uint8(pixels[2] + block[2]);
|
||
|
|
pixels[3] = av_clip_uint8(pixels[3] + block[3]);
|
||
|
|
pixels += line_size;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void add_pixels_clamped2_c(const int16_t *block, uint8_t *av_restrict pixels,
|
||
|
|
int line_size)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
/* read the pixels */
|
||
|
|
for(i=0;i<2;i++) {
|
||
|
|
pixels[0] = av_clip_uint8(pixels[0] + block[0]);
|
||
|
|
pixels[1] = av_clip_uint8(pixels[1] + block[1]);
|
||
|
|
pixels += line_size;
|
||
|
|
block += 8;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ff_jref_idct4_put(uint8_t *dest, int line_size, int16_t *block)
|
||
|
|
{
|
||
|
|
ff_j_rev_dct4 (block);
|
||
|
|
put_pixels_clamped4_c(block, dest, line_size);
|
||
|
|
}
|
||
|
|
static void ff_jref_idct4_add(uint8_t *dest, int line_size, int16_t *block)
|
||
|
|
{
|
||
|
|
ff_j_rev_dct4 (block);
|
||
|
|
add_pixels_clamped4_c(block, dest, line_size);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ff_jref_idct2_put(uint8_t *dest, int line_size, int16_t *block)
|
||
|
|
{
|
||
|
|
ff_j_rev_dct2 (block);
|
||
|
|
put_pixels_clamped2_c(block, dest, line_size);
|
||
|
|
}
|
||
|
|
static void ff_jref_idct2_add(uint8_t *dest, int line_size, int16_t *block)
|
||
|
|
{
|
||
|
|
ff_j_rev_dct2 (block);
|
||
|
|
add_pixels_clamped2_c(block, dest, line_size);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void ff_jref_idct1_put(uint8_t *dest, int line_size, int16_t *block)
|
||
|
|
{
|
||
|
|
dest[0] = av_clip_uint8((block[0] + 4)>>3);
|
||
|
|
}
|
||
|
|
static void ff_jref_idct1_add(uint8_t *dest, int line_size, int16_t *block)
|
||
|
|
{
|
||
|
|
dest[0] = av_clip_uint8(dest[0] + ((block[0] + 4)>>3));
|
||
|
|
}
|
||
|
|
|
||
|
|
av_cold void ff_idctdsp_init(IDCTDSPContext *c, AVCodecContext *avctx)
|
||
|
|
{
|
||
|
|
const unsigned high_bit_depth = avctx->bits_per_raw_sample > 8;
|
||
|
|
|
||
|
|
if (avctx->lowres==1) {
|
||
|
|
c->idct_put = ff_jref_idct4_put;
|
||
|
|
c->idct_add = ff_jref_idct4_add;
|
||
|
|
c->idct = ff_j_rev_dct4;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
} else if (avctx->lowres==2) {
|
||
|
|
c->idct_put = ff_jref_idct2_put;
|
||
|
|
c->idct_add = ff_jref_idct2_add;
|
||
|
|
c->idct = ff_j_rev_dct2;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
} else if (avctx->lowres==3) {
|
||
|
|
c->idct_put = ff_jref_idct1_put;
|
||
|
|
c->idct_add = ff_jref_idct1_add;
|
||
|
|
c->idct = ff_j_rev_dct1;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
} else {
|
||
|
|
if (avctx->bits_per_raw_sample == 10 || avctx->bits_per_raw_sample == 9) {
|
||
|
|
c->idct_put = ff_simple_idct_put_10;
|
||
|
|
c->idct_add = ff_simple_idct_add_10;
|
||
|
|
c->idct = ff_simple_idct_10;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
} else if (avctx->bits_per_raw_sample == 12) {
|
||
|
|
c->idct_put = ff_simple_idct_put_12;
|
||
|
|
c->idct_add = ff_simple_idct_add_12;
|
||
|
|
c->idct = ff_simple_idct_12;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
} else {
|
||
|
|
if (avctx->idct_algo == FF_IDCT_INT) {
|
||
|
|
c->idct_put = ff_jref_idct_put;
|
||
|
|
c->idct_add = ff_jref_idct_add;
|
||
|
|
c->idct = ff_j_rev_dct;
|
||
|
|
c->perm_type = FF_IDCT_PERM_LIBMPEG2;
|
||
|
|
#if CONFIG_FAANIDCT
|
||
|
|
} else if (avctx->idct_algo == FF_IDCT_FAAN) {
|
||
|
|
c->idct_put = ff_faanidct_put;
|
||
|
|
c->idct_add = ff_faanidct_add;
|
||
|
|
c->idct = ff_faanidct;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
#endif /* CONFIG_FAANIDCT */
|
||
|
|
} else { // accurate/default
|
||
|
|
c->idct_put = ff_simple_idct_put_8;
|
||
|
|
c->idct_add = ff_simple_idct_add_8;
|
||
|
|
c->idct = ff_simple_idct_8;
|
||
|
|
c->perm_type = FF_IDCT_PERM_NONE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
c->put_pixels_clamped = put_pixels_clamped_c;
|
||
|
|
c->put_signed_pixels_clamped = put_signed_pixels_clamped_c;
|
||
|
|
c->add_pixels_clamped = add_pixels_clamped_c;
|
||
|
|
|
||
|
|
if (CONFIG_MPEG4_DECODER && avctx->idct_algo == FF_IDCT_XVID)
|
||
|
|
ff_xvid_idct_init(c, avctx);
|
||
|
|
|
||
|
|
if (ARCH_ALPHA)
|
||
|
|
ff_idctdsp_init_alpha(c, avctx, high_bit_depth);
|
||
|
|
if (ARCH_ARM)
|
||
|
|
ff_idctdsp_init_arm(c, avctx, high_bit_depth);
|
||
|
|
if (ARCH_PPC)
|
||
|
|
ff_idctdsp_init_ppc(c, avctx, high_bit_depth);
|
||
|
|
if (ARCH_X86)
|
||
|
|
ff_idctdsp_init_x86(c, avctx, high_bit_depth);
|
||
|
|
if (ARCH_MIPS)
|
||
|
|
ff_idctdsp_init_mips(c, avctx, high_bit_depth);
|
||
|
|
|
||
|
|
ff_put_pixels_clamped = c->put_pixels_clamped;
|
||
|
|
ff_add_pixels_clamped = c->add_pixels_clamped;
|
||
|
|
|
||
|
|
ff_init_scantable_permutation(c->idct_permutation,
|
||
|
|
c->perm_type);
|
||
|
|
}
|