mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
bad5537e2c
Otherwise doxygen complains about ambiguous filenames when files exist under the same name in different subdirectories. Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk
460 lines
14 KiB
C
460 lines
14 KiB
C
/*
|
|
* VC-1 and WMV3 decoder - DSP functions
|
|
* Copyright (c) 2006 Konstantin Shishkov
|
|
*
|
|
* 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 libavcodec/vc1dsp.c
|
|
* VC-1 and WMV3 decoder
|
|
*
|
|
*/
|
|
|
|
#include "dsputil.h"
|
|
|
|
|
|
/** Apply overlap transform to horizontal edge
|
|
*/
|
|
static void vc1_v_overlap_c(uint8_t* src, int stride)
|
|
{
|
|
int i;
|
|
int a, b, c, d;
|
|
int d1, d2;
|
|
int rnd = 1;
|
|
for(i = 0; i < 8; i++) {
|
|
a = src[-2*stride];
|
|
b = src[-stride];
|
|
c = src[0];
|
|
d = src[stride];
|
|
d1 = (a - d + 3 + rnd) >> 3;
|
|
d2 = (a - d + b - c + 4 - rnd) >> 3;
|
|
|
|
src[-2*stride] = a - d1;
|
|
src[-stride] = av_clip_uint8(b - d2);
|
|
src[0] = av_clip_uint8(c + d2);
|
|
src[stride] = d + d1;
|
|
src++;
|
|
rnd = !rnd;
|
|
}
|
|
}
|
|
|
|
/** Apply overlap transform to vertical edge
|
|
*/
|
|
static void vc1_h_overlap_c(uint8_t* src, int stride)
|
|
{
|
|
int i;
|
|
int a, b, c, d;
|
|
int d1, d2;
|
|
int rnd = 1;
|
|
for(i = 0; i < 8; i++) {
|
|
a = src[-2];
|
|
b = src[-1];
|
|
c = src[0];
|
|
d = src[1];
|
|
d1 = (a - d + 3 + rnd) >> 3;
|
|
d2 = (a - d + b - c + 4 - rnd) >> 3;
|
|
|
|
src[-2] = a - d1;
|
|
src[-1] = av_clip_uint8(b - d2);
|
|
src[0] = av_clip_uint8(c + d2);
|
|
src[1] = d + d1;
|
|
src += stride;
|
|
rnd = !rnd;
|
|
}
|
|
}
|
|
|
|
|
|
/** Do inverse transform on 8x8 block
|
|
*/
|
|
static void vc1_inv_trans_8x8_c(DCTELEM block[64])
|
|
{
|
|
int i;
|
|
register int t1,t2,t3,t4,t5,t6,t7,t8;
|
|
DCTELEM *src, *dst;
|
|
|
|
src = block;
|
|
dst = block;
|
|
for(i = 0; i < 8; i++){
|
|
t1 = 12 * (src[0] + src[4]) + 4;
|
|
t2 = 12 * (src[0] - src[4]) + 4;
|
|
t3 = 16 * src[2] + 6 * src[6];
|
|
t4 = 6 * src[2] - 16 * src[6];
|
|
|
|
t5 = t1 + t3;
|
|
t6 = t2 + t4;
|
|
t7 = t2 - t4;
|
|
t8 = t1 - t3;
|
|
|
|
t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
|
|
t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
|
|
t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
|
|
t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
|
|
|
|
dst[0] = (t5 + t1) >> 3;
|
|
dst[1] = (t6 + t2) >> 3;
|
|
dst[2] = (t7 + t3) >> 3;
|
|
dst[3] = (t8 + t4) >> 3;
|
|
dst[4] = (t8 - t4) >> 3;
|
|
dst[5] = (t7 - t3) >> 3;
|
|
dst[6] = (t6 - t2) >> 3;
|
|
dst[7] = (t5 - t1) >> 3;
|
|
|
|
src += 8;
|
|
dst += 8;
|
|
}
|
|
|
|
src = block;
|
|
dst = block;
|
|
for(i = 0; i < 8; i++){
|
|
t1 = 12 * (src[ 0] + src[32]) + 64;
|
|
t2 = 12 * (src[ 0] - src[32]) + 64;
|
|
t3 = 16 * src[16] + 6 * src[48];
|
|
t4 = 6 * src[16] - 16 * src[48];
|
|
|
|
t5 = t1 + t3;
|
|
t6 = t2 + t4;
|
|
t7 = t2 - t4;
|
|
t8 = t1 - t3;
|
|
|
|
t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
|
|
t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
|
|
t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
|
|
t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
|
|
|
|
dst[ 0] = (t5 + t1) >> 7;
|
|
dst[ 8] = (t6 + t2) >> 7;
|
|
dst[16] = (t7 + t3) >> 7;
|
|
dst[24] = (t8 + t4) >> 7;
|
|
dst[32] = (t8 - t4 + 1) >> 7;
|
|
dst[40] = (t7 - t3 + 1) >> 7;
|
|
dst[48] = (t6 - t2 + 1) >> 7;
|
|
dst[56] = (t5 - t1 + 1) >> 7;
|
|
|
|
src++;
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
/** Do inverse transform on 8x4 part of block
|
|
*/
|
|
static void vc1_inv_trans_8x4_c(uint8_t *dest, int linesize, DCTELEM *block)
|
|
{
|
|
int i;
|
|
register int t1,t2,t3,t4,t5,t6,t7,t8;
|
|
DCTELEM *src, *dst;
|
|
const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
|
|
|
|
src = block;
|
|
dst = block;
|
|
for(i = 0; i < 4; i++){
|
|
t1 = 12 * (src[0] + src[4]) + 4;
|
|
t2 = 12 * (src[0] - src[4]) + 4;
|
|
t3 = 16 * src[2] + 6 * src[6];
|
|
t4 = 6 * src[2] - 16 * src[6];
|
|
|
|
t5 = t1 + t3;
|
|
t6 = t2 + t4;
|
|
t7 = t2 - t4;
|
|
t8 = t1 - t3;
|
|
|
|
t1 = 16 * src[1] + 15 * src[3] + 9 * src[5] + 4 * src[7];
|
|
t2 = 15 * src[1] - 4 * src[3] - 16 * src[5] - 9 * src[7];
|
|
t3 = 9 * src[1] - 16 * src[3] + 4 * src[5] + 15 * src[7];
|
|
t4 = 4 * src[1] - 9 * src[3] + 15 * src[5] - 16 * src[7];
|
|
|
|
dst[0] = (t5 + t1) >> 3;
|
|
dst[1] = (t6 + t2) >> 3;
|
|
dst[2] = (t7 + t3) >> 3;
|
|
dst[3] = (t8 + t4) >> 3;
|
|
dst[4] = (t8 - t4) >> 3;
|
|
dst[5] = (t7 - t3) >> 3;
|
|
dst[6] = (t6 - t2) >> 3;
|
|
dst[7] = (t5 - t1) >> 3;
|
|
|
|
src += 8;
|
|
dst += 8;
|
|
}
|
|
|
|
src = block;
|
|
for(i = 0; i < 8; i++){
|
|
t1 = 17 * (src[ 0] + src[16]) + 64;
|
|
t2 = 17 * (src[ 0] - src[16]) + 64;
|
|
t3 = 22 * src[ 8] + 10 * src[24];
|
|
t4 = 22 * src[24] - 10 * src[ 8];
|
|
|
|
dest[0*linesize] = cm[dest[0*linesize] + ((t1 + t3) >> 7)];
|
|
dest[1*linesize] = cm[dest[1*linesize] + ((t2 - t4) >> 7)];
|
|
dest[2*linesize] = cm[dest[2*linesize] + ((t2 + t4) >> 7)];
|
|
dest[3*linesize] = cm[dest[3*linesize] + ((t1 - t3) >> 7)];
|
|
|
|
src ++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
/** Do inverse transform on 4x8 parts of block
|
|
*/
|
|
static void vc1_inv_trans_4x8_c(uint8_t *dest, int linesize, DCTELEM *block)
|
|
{
|
|
int i;
|
|
register int t1,t2,t3,t4,t5,t6,t7,t8;
|
|
DCTELEM *src, *dst;
|
|
const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
|
|
|
|
src = block;
|
|
dst = block;
|
|
for(i = 0; i < 8; i++){
|
|
t1 = 17 * (src[0] + src[2]) + 4;
|
|
t2 = 17 * (src[0] - src[2]) + 4;
|
|
t3 = 22 * src[1] + 10 * src[3];
|
|
t4 = 22 * src[3] - 10 * src[1];
|
|
|
|
dst[0] = (t1 + t3) >> 3;
|
|
dst[1] = (t2 - t4) >> 3;
|
|
dst[2] = (t2 + t4) >> 3;
|
|
dst[3] = (t1 - t3) >> 3;
|
|
|
|
src += 8;
|
|
dst += 8;
|
|
}
|
|
|
|
src = block;
|
|
for(i = 0; i < 4; i++){
|
|
t1 = 12 * (src[ 0] + src[32]) + 64;
|
|
t2 = 12 * (src[ 0] - src[32]) + 64;
|
|
t3 = 16 * src[16] + 6 * src[48];
|
|
t4 = 6 * src[16] - 16 * src[48];
|
|
|
|
t5 = t1 + t3;
|
|
t6 = t2 + t4;
|
|
t7 = t2 - t4;
|
|
t8 = t1 - t3;
|
|
|
|
t1 = 16 * src[ 8] + 15 * src[24] + 9 * src[40] + 4 * src[56];
|
|
t2 = 15 * src[ 8] - 4 * src[24] - 16 * src[40] - 9 * src[56];
|
|
t3 = 9 * src[ 8] - 16 * src[24] + 4 * src[40] + 15 * src[56];
|
|
t4 = 4 * src[ 8] - 9 * src[24] + 15 * src[40] - 16 * src[56];
|
|
|
|
dest[0*linesize] = cm[dest[0*linesize] + ((t5 + t1) >> 7)];
|
|
dest[1*linesize] = cm[dest[1*linesize] + ((t6 + t2) >> 7)];
|
|
dest[2*linesize] = cm[dest[2*linesize] + ((t7 + t3) >> 7)];
|
|
dest[3*linesize] = cm[dest[3*linesize] + ((t8 + t4) >> 7)];
|
|
dest[4*linesize] = cm[dest[4*linesize] + ((t8 - t4 + 1) >> 7)];
|
|
dest[5*linesize] = cm[dest[5*linesize] + ((t7 - t3 + 1) >> 7)];
|
|
dest[6*linesize] = cm[dest[6*linesize] + ((t6 - t2 + 1) >> 7)];
|
|
dest[7*linesize] = cm[dest[7*linesize] + ((t5 - t1 + 1) >> 7)];
|
|
|
|
src ++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
/** Do inverse transform on 4x4 part of block
|
|
*/
|
|
static void vc1_inv_trans_4x4_c(uint8_t *dest, int linesize, DCTELEM *block)
|
|
{
|
|
int i;
|
|
register int t1,t2,t3,t4;
|
|
DCTELEM *src, *dst;
|
|
const uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
|
|
|
|
src = block;
|
|
dst = block;
|
|
for(i = 0; i < 4; i++){
|
|
t1 = 17 * (src[0] + src[2]) + 4;
|
|
t2 = 17 * (src[0] - src[2]) + 4;
|
|
t3 = 22 * src[1] + 10 * src[3];
|
|
t4 = 22 * src[3] - 10 * src[1];
|
|
|
|
dst[0] = (t1 + t3) >> 3;
|
|
dst[1] = (t2 - t4) >> 3;
|
|
dst[2] = (t2 + t4) >> 3;
|
|
dst[3] = (t1 - t3) >> 3;
|
|
|
|
src += 8;
|
|
dst += 8;
|
|
}
|
|
|
|
src = block;
|
|
for(i = 0; i < 4; i++){
|
|
t1 = 17 * (src[ 0] + src[16]) + 64;
|
|
t2 = 17 * (src[ 0] - src[16]) + 64;
|
|
t3 = 22 * src[ 8] + 10 * src[24];
|
|
t4 = 22 * src[24] - 10 * src[ 8];
|
|
|
|
dest[0*linesize] = cm[dest[0*linesize] + ((t1 + t3) >> 7)];
|
|
dest[1*linesize] = cm[dest[1*linesize] + ((t2 - t4) >> 7)];
|
|
dest[2*linesize] = cm[dest[2*linesize] + ((t2 + t4) >> 7)];
|
|
dest[3*linesize] = cm[dest[3*linesize] + ((t1 - t3) >> 7)];
|
|
|
|
src ++;
|
|
dest++;
|
|
}
|
|
}
|
|
|
|
/* motion compensation functions */
|
|
/** Filter in case of 2 filters */
|
|
#define VC1_MSPEL_FILTER_16B(DIR, TYPE) \
|
|
static av_always_inline int vc1_mspel_ ## DIR ## _filter_16bits(const TYPE *src, int stride, int mode) \
|
|
{ \
|
|
switch(mode){ \
|
|
case 0: /* no shift - should not occur */ \
|
|
return 0; \
|
|
case 1: /* 1/4 shift */ \
|
|
return -4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2]; \
|
|
case 2: /* 1/2 shift */ \
|
|
return -src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2]; \
|
|
case 3: /* 3/4 shift */ \
|
|
return -3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2]; \
|
|
} \
|
|
return 0; /* should not occur */ \
|
|
}
|
|
|
|
VC1_MSPEL_FILTER_16B(ver, uint8_t);
|
|
VC1_MSPEL_FILTER_16B(hor, int16_t);
|
|
|
|
|
|
/** Filter used to interpolate fractional pel values
|
|
*/
|
|
static av_always_inline int vc1_mspel_filter(const uint8_t *src, int stride, int mode, int r)
|
|
{
|
|
switch(mode){
|
|
case 0: //no shift
|
|
return src[0];
|
|
case 1: // 1/4 shift
|
|
return (-4*src[-stride] + 53*src[0] + 18*src[stride] - 3*src[stride*2] + 32 - r) >> 6;
|
|
case 2: // 1/2 shift
|
|
return (-src[-stride] + 9*src[0] + 9*src[stride] - src[stride*2] + 8 - r) >> 4;
|
|
case 3: // 3/4 shift
|
|
return (-3*src[-stride] + 18*src[0] + 53*src[stride] - 4*src[stride*2] + 32 - r) >> 6;
|
|
}
|
|
return 0; //should not occur
|
|
}
|
|
|
|
/** Function used to do motion compensation with bicubic interpolation
|
|
*/
|
|
static void vc1_mspel_mc(uint8_t *dst, const uint8_t *src, int stride, int hmode, int vmode, int rnd)
|
|
{
|
|
int i, j;
|
|
|
|
if (vmode) { /* Horizontal filter to apply */
|
|
int r;
|
|
|
|
if (hmode) { /* Vertical filter to apply, output to tmp */
|
|
static const int shift_value[] = { 0, 5, 1, 5 };
|
|
int shift = (shift_value[hmode]+shift_value[vmode])>>1;
|
|
int16_t tmp[11*8], *tptr = tmp;
|
|
|
|
r = (1<<(shift-1)) + rnd-1;
|
|
|
|
src -= 1;
|
|
for(j = 0; j < 8; j++) {
|
|
for(i = 0; i < 11; i++)
|
|
tptr[i] = (vc1_mspel_ver_filter_16bits(src + i, stride, vmode)+r)>>shift;
|
|
src += stride;
|
|
tptr += 11;
|
|
}
|
|
|
|
r = 64-rnd;
|
|
tptr = tmp+1;
|
|
for(j = 0; j < 8; j++) {
|
|
for(i = 0; i < 8; i++)
|
|
dst[i] = av_clip_uint8((vc1_mspel_hor_filter_16bits(tptr + i, 1, hmode)+r)>>7);
|
|
dst += stride;
|
|
tptr += 11;
|
|
}
|
|
|
|
return;
|
|
}
|
|
else { /* No horizontal filter, output 8 lines to dst */
|
|
r = 1-rnd;
|
|
|
|
for(j = 0; j < 8; j++) {
|
|
for(i = 0; i < 8; i++)
|
|
dst[i] = av_clip_uint8(vc1_mspel_filter(src + i, stride, vmode, r));
|
|
src += stride;
|
|
dst += stride;
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* Horizontal mode with no vertical mode */
|
|
for(j = 0; j < 8; j++) {
|
|
for(i = 0; i < 8; i++)
|
|
dst[i] = av_clip_uint8(vc1_mspel_filter(src + i, 1, hmode, rnd));
|
|
dst += stride;
|
|
src += stride;
|
|
}
|
|
}
|
|
|
|
/* pixel functions - really are entry points to vc1_mspel_mc */
|
|
|
|
/* this one is defined in dsputil.c */
|
|
void ff_put_vc1_mspel_mc00_c(uint8_t *dst, const uint8_t *src, int stride, int rnd);
|
|
|
|
#define PUT_VC1_MSPEL(a, b)\
|
|
static void put_vc1_mspel_mc ## a ## b ##_c(uint8_t *dst, const uint8_t *src, int stride, int rnd) { \
|
|
vc1_mspel_mc(dst, src, stride, a, b, rnd); \
|
|
}
|
|
|
|
PUT_VC1_MSPEL(1, 0)
|
|
PUT_VC1_MSPEL(2, 0)
|
|
PUT_VC1_MSPEL(3, 0)
|
|
|
|
PUT_VC1_MSPEL(0, 1)
|
|
PUT_VC1_MSPEL(1, 1)
|
|
PUT_VC1_MSPEL(2, 1)
|
|
PUT_VC1_MSPEL(3, 1)
|
|
|
|
PUT_VC1_MSPEL(0, 2)
|
|
PUT_VC1_MSPEL(1, 2)
|
|
PUT_VC1_MSPEL(2, 2)
|
|
PUT_VC1_MSPEL(3, 2)
|
|
|
|
PUT_VC1_MSPEL(0, 3)
|
|
PUT_VC1_MSPEL(1, 3)
|
|
PUT_VC1_MSPEL(2, 3)
|
|
PUT_VC1_MSPEL(3, 3)
|
|
|
|
void ff_vc1dsp_init(DSPContext* dsp, AVCodecContext *avctx) {
|
|
dsp->vc1_inv_trans_8x8 = vc1_inv_trans_8x8_c;
|
|
dsp->vc1_inv_trans_4x8 = vc1_inv_trans_4x8_c;
|
|
dsp->vc1_inv_trans_8x4 = vc1_inv_trans_8x4_c;
|
|
dsp->vc1_inv_trans_4x4 = vc1_inv_trans_4x4_c;
|
|
dsp->vc1_h_overlap = vc1_h_overlap_c;
|
|
dsp->vc1_v_overlap = vc1_v_overlap_c;
|
|
|
|
dsp->put_vc1_mspel_pixels_tab[ 0] = ff_put_vc1_mspel_mc00_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 1] = put_vc1_mspel_mc10_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 2] = put_vc1_mspel_mc20_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 3] = put_vc1_mspel_mc30_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 4] = put_vc1_mspel_mc01_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 5] = put_vc1_mspel_mc11_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 6] = put_vc1_mspel_mc21_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 7] = put_vc1_mspel_mc31_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 8] = put_vc1_mspel_mc02_c;
|
|
dsp->put_vc1_mspel_pixels_tab[ 9] = put_vc1_mspel_mc12_c;
|
|
dsp->put_vc1_mspel_pixels_tab[10] = put_vc1_mspel_mc22_c;
|
|
dsp->put_vc1_mspel_pixels_tab[11] = put_vc1_mspel_mc32_c;
|
|
dsp->put_vc1_mspel_pixels_tab[12] = put_vc1_mspel_mc03_c;
|
|
dsp->put_vc1_mspel_pixels_tab[13] = put_vc1_mspel_mc13_c;
|
|
dsp->put_vc1_mspel_pixels_tab[14] = put_vc1_mspel_mc23_c;
|
|
dsp->put_vc1_mspel_pixels_tab[15] = put_vc1_mspel_mc33_c;
|
|
}
|