diff options
| author | povaddict <povaddict@users.sourceforge.net> | 2010-02-10 02:16:44 +0300 |
|---|---|---|
| committer | povaddict <povaddict@users.sourceforge.net> | 2010-02-10 02:16:44 +0300 |
| commit | 726a91b12a7524e45e7a901c9e4883af5b1bffe6 (patch) | |
| tree | f5d25e3b2e84c92f4901280c73d5d3d7e6c3cd19 /src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/vp3dsp.c | |
| parent | 02183f6e47ad4ea1057de9950482f291f2ae4290 (diff) | |
Rename several directories to use MixedCase instead of lowercase.
They now mostly match the case used in #includes,
and they're consistent with the names of the .h files they contain.
git-svn-id: https://mpc-hc.svn.sourceforge.net/svnroot/mpc-hc/trunk@1648 10f7b99b-c216-0410-bff0-8a66a9350fd8
Diffstat (limited to 'src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/vp3dsp.c')
| -rw-r--r-- | src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/vp3dsp.c | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/vp3dsp.c b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/vp3dsp.c new file mode 100644 index 000000000..83d46e97f --- /dev/null +++ b/src/filters/transform/MPCVideoDec/ffmpeg/libavcodec/vp3dsp.c @@ -0,0 +1,255 @@ +/*
+ * 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 vp3dsp.c
+ * Standard C DSP-oriented functions cribbed from the original VP3
+ * source code.
+ */
+
+#include "avcodec.h"
+#include "dsputil.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;
+ uint8_t *cm = ff_cropTbl + MAX_NEG_CROP;
+
+ 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] | 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]));
+ F = M(xC4S4, (ip[0] - ip[4]));
+
+ 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. */
+ ip[0] = Gd + Cd ;
+ ip[7] = Gd - Cd ;
+
+ ip[1] = Add + Hd;
+ ip[2] = Add - Hd;
+
+ ip[3] = Ed + Dd ;
+ ip[4] = Ed - Dd ;
+
+ ip[5] = Fd + Bdd;
+ ip[6] = Fd - Bdd;
+ }
+
+ ip += 8; /* next row */
+ }
+
+ ip = input;
+
+ for ( i = 0; i < 8; i++) {
+ /* Check for non-zero values (bitwise or faster than ||) */
+ if ( 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])) + 8;
+ F = M(xC4S4, (ip[0*8] - ip[4*8])) + 8;
+
+ if(type==1){ //HACK
+ E += 16*128;
+ F += 16*128;
+ }
+
+ 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. */
+ if(type==0){
+ ip[0*8] = (Gd + Cd ) >> 4;
+ ip[7*8] = (Gd - Cd ) >> 4;
+
+ ip[1*8] = (Add + Hd ) >> 4;
+ ip[2*8] = (Add - Hd ) >> 4;
+
+ ip[3*8] = (Ed + Dd ) >> 4;
+ ip[4*8] = (Ed - Dd ) >> 4;
+
+ ip[5*8] = (Fd + Bdd ) >> 4;
+ ip[6*8] = (Fd - Bdd ) >> 4;
+ }else if(type==1){
+ dst[0*stride] = cm[(Gd + Cd ) >> 4];
+ dst[7*stride] = cm[(Gd - Cd ) >> 4];
+
+ dst[1*stride] = cm[(Add + Hd ) >> 4];
+ dst[2*stride] = cm[(Add - Hd ) >> 4];
+
+ dst[3*stride] = cm[(Ed + Dd ) >> 4];
+ dst[4*stride] = cm[(Ed - Dd ) >> 4];
+
+ dst[5*stride] = cm[(Fd + Bdd ) >> 4];
+ dst[6*stride] = cm[(Fd - Bdd ) >> 4];
+ }else{
+ dst[0*stride] = cm[dst[0*stride] + ((Gd + Cd ) >> 4)];
+ dst[7*stride] = cm[dst[7*stride] + ((Gd - Cd ) >> 4)];
+
+ dst[1*stride] = cm[dst[1*stride] + ((Add + Hd ) >> 4)];
+ dst[2*stride] = cm[dst[2*stride] + ((Add - Hd ) >> 4)];
+
+ dst[3*stride] = cm[dst[3*stride] + ((Ed + Dd ) >> 4)];
+ dst[4*stride] = cm[dst[4*stride] + ((Ed - Dd ) >> 4)];
+
+ dst[5*stride] = cm[dst[5*stride] + ((Fd + Bdd ) >> 4)];
+ dst[6*stride] = cm[dst[6*stride] + ((Fd - Bdd ) >> 4)];
+ }
+
+ } else {
+ if(type==0){
+ ip[0*8] =
+ ip[1*8] =
+ ip[2*8] =
+ ip[3*8] =
+ ip[4*8] =
+ ip[5*8] =
+ ip[6*8] =
+ ip[7*8] = ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20);
+ }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]= cm[128 + ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20)];
+ }else{
+ if(ip[0*8]){
+ int v= ((xC4S4 * ip[0*8] + (IdctAdjustBeforeShift<<16))>>20);
+ dst[0*stride] = cm[dst[0*stride] + v];
+ dst[1*stride] = cm[dst[1*stride] + v];
+ dst[2*stride] = cm[dst[2*stride] + v];
+ dst[3*stride] = cm[dst[3*stride] + v];
+ dst[4*stride] = cm[dst[4*stride] + v];
+ dst[5*stride] = cm[dst[5*stride] + v];
+ dst[6*stride] = cm[dst[6*stride] + v];
+ dst[7*stride] = cm[dst[7*stride] + v];
+ }
+ }
+ }
+
+ ip++; /* next column */
+ dst++;
+ }
+}
+
+void ff_vp3_idct_c(DCTELEM *block/* align 16*/){
+ idct(NULL, 0, block, 0);
+}
+
+void ff_vp3_idct_put_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){
+ idct(dest, line_size, block, 1);
+}
+
+void ff_vp3_idct_add_c(uint8_t *dest/*align 8*/, int line_size, DCTELEM *block/*align 16*/){
+ idct(dest, line_size, block, 2);
+}
+
+void ff_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);
+ }
+}
+
+void ff_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);
+ }
+}
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