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Diffstat (limited to 'ffmpeg/libavcodec/vp3dsp.c')
-rw-r--r--ffmpeg/libavcodec/vp3dsp.c298
1 files changed, 0 insertions, 298 deletions
diff --git a/ffmpeg/libavcodec/vp3dsp.c b/ffmpeg/libavcodec/vp3dsp.c
deleted file mode 100644
index 5656629..0000000
--- a/ffmpeg/libavcodec/vp3dsp.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/*
- * Copyright (C) 2004 the ffmpeg project
- *
- * 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
- * Standard C DSP-oriented functions cribbed from the original VP3
- * source code.
- */
-
-#include "libavutil/attributes.h"
-#include "libavutil/common.h"
-#include "avcodec.h"
-#include "dsputil.h"
-#include "rnd_avg.h"
-#include "vp3dsp.h"
-
-#define IdctAdjustBeforeShift 8
-#define xC1S7 64277
-#define xC2S6 60547
-#define xC3S5 54491
-#define xC4S4 46341
-#define xC5S3 36410
-#define xC6S2 25080
-#define xC7S1 12785
-
-#define M(a,b) (((a) * (b))>>16)
-
-static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int type)
-{
- int16_t *ip = input;
-
- int A, B, C, D, Ad, Bd, Cd, Dd, E, F, G, H;
- int Ed, Gd, Add, Bdd, Fd, Hd;
-
- int i;
-
- /* Inverse DCT on the rows now */
- for (i = 0; i < 8; i++) {
- /* Check for non-zero values */
- if ( ip[0 * 8] | ip[1 * 8] | ip[2 * 8] | ip[3 * 8] |
- ip[4 * 8] | ip[5 * 8] | ip[6 * 8] | ip[7 * 8] ) {
- A = M(xC1S7, ip[1 * 8]) + M(xC7S1, ip[7 * 8]);
- B = M(xC7S1, ip[1 * 8]) - M(xC1S7, ip[7 * 8]);
- C = M(xC3S5, ip[3 * 8]) + M(xC5S3, ip[5 * 8]);
- D = M(xC3S5, ip[5 * 8]) - M(xC5S3, ip[3 * 8]);
-
- Ad = M(xC4S4, (A - C));
- Bd = M(xC4S4, (B - D));
-
- Cd = A + C;
- Dd = B + D;
-
- E = M(xC4S4, (ip[0 * 8] + ip[4 * 8]));
- F = M(xC4S4, (ip[0 * 8] - ip[4 * 8]));
-
- G = M(xC2S6, ip[2 * 8]) + M(xC6S2, ip[6 * 8]);
- H = M(xC6S2, ip[2 * 8]) - M(xC2S6, ip[6 * 8]);
-
- Ed = E - G;
- Gd = E + G;
-
- Add = F + Ad;
- Bdd = Bd - H;
-
- Fd = F - Ad;
- Hd = Bd + H;
-
- /* Final sequence of operations over-write original inputs. */
- ip[0 * 8] = Gd + Cd ;
- ip[7 * 8] = Gd - Cd ;
-
- ip[1 * 8] = Add + Hd;
- ip[2 * 8] = Add - Hd;
-
- ip[3 * 8] = Ed + Dd ;
- ip[4 * 8] = Ed - Dd ;
-
- ip[5 * 8] = Fd + Bdd;
- ip[6 * 8] = Fd - Bdd;
- }
-
- ip += 1; /* next row */
- }
-
- ip = input;
-
- for ( i = 0; i < 8; i++) {
- /* Check for non-zero values (bitwise or faster than ||) */
- if ( ip[1] | ip[2] | ip[3] |
- ip[4] | ip[5] | ip[6] | ip[7] ) {
-
- A = M(xC1S7, ip[1]) + M(xC7S1, ip[7]);
- B = M(xC7S1, ip[1]) - M(xC1S7, ip[7]);
- C = M(xC3S5, ip[3]) + M(xC5S3, ip[5]);
- D = M(xC3S5, ip[5]) - M(xC5S3, ip[3]);
-
- Ad = M(xC4S4, (A - C));
- Bd = M(xC4S4, (B - D));
-
- Cd = A + C;
- Dd = B + D;
-
- E = M(xC4S4, (ip[0] + ip[4])) + 8;
- F = M(xC4S4, (ip[0] - ip[4])) + 8;
-
- if(type==1){ //HACK
- E += 16*128;
- F += 16*128;
- }
-
- G = M(xC2S6, ip[2]) + M(xC6S2, ip[6]);
- H = M(xC6S2, ip[2]) - M(xC2S6, ip[6]);
-
- Ed = E - G;
- Gd = E + G;
-
- Add = F + Ad;
- Bdd = Bd - H;
-
- Fd = F - Ad;
- Hd = Bd + H;
-
- /* Final sequence of operations over-write original inputs. */
- if (type == 1) {
- dst[0*stride] = av_clip_uint8((Gd + Cd ) >> 4);
- dst[7*stride] = av_clip_uint8((Gd - Cd ) >> 4);
-
- dst[1*stride] = av_clip_uint8((Add + Hd ) >> 4);
- dst[2*stride] = av_clip_uint8((Add - Hd ) >> 4);
-
- dst[3*stride] = av_clip_uint8((Ed + Dd ) >> 4);
- dst[4*stride] = av_clip_uint8((Ed - Dd ) >> 4);
-
- dst[5*stride] = av_clip_uint8((Fd + Bdd ) >> 4);
- dst[6*stride] = av_clip_uint8((Fd - Bdd ) >> 4);
- }else{
- dst[0*stride] = av_clip_uint8(dst[0*stride] + ((Gd + Cd ) >> 4));
- dst[7*stride] = av_clip_uint8(dst[7*stride] + ((Gd - Cd ) >> 4));
-
- dst[1*stride] = av_clip_uint8(dst[1*stride] + ((Add + Hd ) >> 4));
- dst[2*stride] = av_clip_uint8(dst[2*stride] + ((Add - Hd ) >> 4));
-
- dst[3*stride] = av_clip_uint8(dst[3*stride] + ((Ed + Dd ) >> 4));
- dst[4*stride] = av_clip_uint8(dst[4*stride] + ((Ed - Dd ) >> 4));
-
- dst[5*stride] = av_clip_uint8(dst[5*stride] + ((Fd + Bdd ) >> 4));
- dst[6*stride] = av_clip_uint8(dst[6*stride] + ((Fd - Bdd ) >> 4));
- }
-
- } else {
- if (type == 1) {
- dst[0*stride]=
- dst[1*stride]=
- dst[2*stride]=
- dst[3*stride]=
- dst[4*stride]=
- dst[5*stride]=
- dst[6*stride]=
- dst[7*stride]= av_clip_uint8(128 + ((xC4S4 * ip[0] + (IdctAdjustBeforeShift<<16))>>20));
- }else{
- if(ip[0]){
- int v= ((xC4S4 * ip[0] + (IdctAdjustBeforeShift<<16))>>20);
- dst[0*stride] = av_clip_uint8(dst[0*stride] + v);
- dst[1*stride] = av_clip_uint8(dst[1*stride] + v);
- dst[2*stride] = av_clip_uint8(dst[2*stride] + v);
- dst[3*stride] = av_clip_uint8(dst[3*stride] + v);
- dst[4*stride] = av_clip_uint8(dst[4*stride] + v);
- dst[5*stride] = av_clip_uint8(dst[5*stride] + v);
- dst[6*stride] = av_clip_uint8(dst[6*stride] + v);
- dst[7*stride] = av_clip_uint8(dst[7*stride] + v);
- }
- }
- }
-
- ip += 8; /* next column */
- dst++;
- }
-}
-
-static void vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size,
- int16_t *block/*align 16*/)
-{
- idct(dest, line_size, block, 1);
- memset(block, 0, sizeof(*block) * 64);
-}
-
-static void vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size,
- int16_t *block/*align 16*/)
-{
- idct(dest, line_size, block, 2);
- memset(block, 0, sizeof(*block) * 64);
-}
-
-static void vp3_idct_dc_add_c(uint8_t *dest/*align 8*/, int line_size,
- int16_t *block/*align 16*/)
-{
- int i, dc = (block[0] + 15) >> 5;
-
- for(i = 0; i < 8; i++){
- dest[0] = av_clip_uint8(dest[0] + dc);
- dest[1] = av_clip_uint8(dest[1] + dc);
- dest[2] = av_clip_uint8(dest[2] + dc);
- dest[3] = av_clip_uint8(dest[3] + dc);
- dest[4] = av_clip_uint8(dest[4] + dc);
- dest[5] = av_clip_uint8(dest[5] + dc);
- dest[6] = av_clip_uint8(dest[6] + dc);
- dest[7] = av_clip_uint8(dest[7] + dc);
- dest += line_size;
- }
- block[0] = 0;
-}
-
-static void vp3_v_loop_filter_c(uint8_t *first_pixel, int stride,
- int *bounding_values)
-{
- unsigned char *end;
- int filter_value;
- const int nstride= -stride;
-
- for (end= first_pixel + 8; first_pixel < end; first_pixel++) {
- filter_value =
- (first_pixel[2 * nstride] - first_pixel[ stride])
- +3*(first_pixel[0 ] - first_pixel[nstride]);
- filter_value = bounding_values[(filter_value + 4) >> 3];
- first_pixel[nstride] = av_clip_uint8(first_pixel[nstride] + filter_value);
- first_pixel[0] = av_clip_uint8(first_pixel[0] - filter_value);
- }
-}
-
-static void vp3_h_loop_filter_c(uint8_t *first_pixel, int stride,
- int *bounding_values)
-{
- unsigned char *end;
- int filter_value;
-
- for (end= first_pixel + 8*stride; first_pixel != end; first_pixel += stride) {
- filter_value =
- (first_pixel[-2] - first_pixel[ 1])
- +3*(first_pixel[ 0] - first_pixel[-1]);
- filter_value = bounding_values[(filter_value + 4) >> 3];
- first_pixel[-1] = av_clip_uint8(first_pixel[-1] + filter_value);
- first_pixel[ 0] = av_clip_uint8(first_pixel[ 0] - filter_value);
- }
-}
-
-static void put_no_rnd_pixels_l2(uint8_t *dst, const uint8_t *src1,
- const uint8_t *src2, ptrdiff_t stride, int h)
-{
- int i;
-
- for (i = 0; i < h; i++) {
- uint32_t a, b;
-
- a = AV_RN32(&src1[i * stride]);
- b = AV_RN32(&src2[i * stride]);
- AV_WN32A(&dst[i * stride], no_rnd_avg32(a, b));
- a = AV_RN32(&src1[i * stride + 4]);
- b = AV_RN32(&src2[i * stride + 4]);
- AV_WN32A(&dst[i * stride + 4], no_rnd_avg32(a, b));
- }
-}
-
-av_cold void ff_vp3dsp_init(VP3DSPContext *c, int flags)
-{
- c->put_no_rnd_pixels_l2 = put_no_rnd_pixels_l2;
-
- c->idct_put = vp3_idct_put_c;
- c->idct_add = vp3_idct_add_c;
- c->idct_dc_add = vp3_idct_dc_add_c;
- c->v_loop_filter = vp3_v_loop_filter_c;
- c->h_loop_filter = vp3_h_loop_filter_c;
-
- if (ARCH_ARM)
- ff_vp3dsp_init_arm(c, flags);
- if (ARCH_BFIN)
- ff_vp3dsp_init_bfin(c, flags);
- if (ARCH_PPC)
- ff_vp3dsp_init_ppc(c, flags);
- if (ARCH_X86)
- ff_vp3dsp_init_x86(c, flags);
-}
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