[FFmpeg-devel] [PATCH] RFC: separate DWT code from snow
Mans Rullgard
mans
Thu Mar 11 04:16:38 CET 2010
This separates the DWT code from snow into a separately configurable
module.
This is not meant to be the final version.
---
configure | 4 +-
libavcodec/Makefile | 1 +
libavcodec/dsputil.c | 8 +-
libavcodec/dwt.c | 733 ++++++++++++++++++++++++++++++++++++++++++
libavcodec/{snow.h => dwt.h} | 91 ++----
libavcodec/snow.c | 722 +-----------------------------------------
libavcodec/snow.h | 97 +------
7 files changed, 774 insertions(+), 882 deletions(-)
create mode 100644 libavcodec/dwt.c
copy libavcodec/{snow.h => dwt.h} (62%)
diff --git a/configure b/configure
index be86e3d..8bf964c 100755
--- a/configure
+++ b/configure
@@ -893,6 +893,7 @@ CONFIG_LIST="
bzlib
dct
doc
+ dwt
dxva2
fastdiv
ffmpeg
@@ -1275,7 +1276,8 @@ rv30_decoder_select="golomb"
rv40_decoder_select="golomb"
shorten_decoder_select="golomb"
sipr_decoder_select="lsp"
-snow_encoder_select="aandct"
+snow_decoder_select="dwt"
+snow_encoder_select="aandct dwt"
sonic_decoder_select="golomb"
sonic_encoder_select="golomb"
sonic_ls_encoder_select="golomb"
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index 6bd26cc..25785a6 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -28,6 +28,7 @@ OBJS = allcodecs.o \
OBJS-$(CONFIG_AANDCT) += aandcttab.o
OBJS-$(CONFIG_ENCODERS) += faandct.o jfdctfst.o jfdctint.o
OBJS-$(CONFIG_DCT) += dct.o
+OBJS-$(CONFIG_DWT) += dwt.o
OBJS-$(CONFIG_DXVA2) += dxva2.o
FFT-OBJS-$(CONFIG_HARDCODED_TABLES) += cos_tables.o
OBJS-$(CONFIG_FFT) += avfft.o fft.o $(FFT-OBJS-yes)
diff --git a/libavcodec/dsputil.c b/libavcodec/dsputil.c
index cb9d381..6b4af9f 100644
--- a/libavcodec/dsputil.c
+++ b/libavcodec/dsputil.c
@@ -33,7 +33,7 @@
#include "faandct.h"
#include "faanidct.h"
#include "mathops.h"
-#include "snow.h"
+#include "dwt.h"
#include "mpegvideo.h"
#include "config.h"
#include "lpc.h"
@@ -330,7 +330,7 @@ static int sse16_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)
}
-#if CONFIG_SNOW_ENCODER //dwt is in snow.c
+#if CONFIG_DWT
static inline int w_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int w, int h, int type){
int s, i, j;
const int dec_count= w==8 ? 3 : 4;
@@ -3531,7 +3531,7 @@ void ff_set_cmp(DSPContext* c, me_cmp_func *cmp, int type){
case FF_CMP_NSSE:
cmp[i]= c->nsse[i];
break;
-#if CONFIG_SNOW_ENCODER
+#if CONFIG_DWT
case FF_CMP_W53:
cmp[i]= c->w53[i];
break;
@@ -4816,7 +4816,7 @@ av_cold void dsputil_init(DSPContext* c, AVCodecContext *avctx)
c->vsse[5]= vsse_intra8_c;
c->nsse[0]= nsse16_c;
c->nsse[1]= nsse8_c;
-#if CONFIG_SNOW_ENCODER
+#if CONFIG_DWT
c->w53[0]= w53_16_c;
c->w53[1]= w53_8_c;
c->w97[0]= w97_16_c;
diff --git a/libavcodec/dwt.c b/libavcodec/dwt.c
new file mode 100644
index 0000000..75cc3d7
--- /dev/null
+++ b/libavcodec/dwt.c
@@ -0,0 +1,733 @@
+/*
+ * Copyright (C) 2004-2010 Michael Niedermayer <michaelni at 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
+ */
+
+#include "libavutil/attributes.h"
+#include "dsputil.h"
+#include "dwt.h"
+
+void slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer)
+{
+ int i;
+
+ buf->base_buffer = base_buffer;
+ buf->line_count = line_count;
+ buf->line_width = line_width;
+ buf->data_count = max_allocated_lines;
+ buf->line = av_mallocz (sizeof(IDWTELEM *) * line_count);
+ buf->data_stack = av_malloc (sizeof(IDWTELEM *) * max_allocated_lines);
+
+ for(i = 0; i < max_allocated_lines; i++){
+ buf->data_stack[i] = av_malloc (sizeof(IDWTELEM) * line_width);
+ }
+
+ buf->data_stack_top = max_allocated_lines - 1;
+}
+
+IDWTELEM * slice_buffer_load_line(slice_buffer * buf, int line)
+{
+ IDWTELEM * buffer;
+
+ assert(buf->data_stack_top >= 0);
+// assert(!buf->line[line]);
+ if (buf->line[line])
+ return buf->line[line];
+
+ buffer = buf->data_stack[buf->data_stack_top];
+ buf->data_stack_top--;
+ buf->line[line] = buffer;
+
+ return buffer;
+}
+
+void slice_buffer_release(slice_buffer * buf, int line)
+{
+ IDWTELEM * buffer;
+
+ assert(line >= 0 && line < buf->line_count);
+ assert(buf->line[line]);
+
+ buffer = buf->line[line];
+ buf->data_stack_top++;
+ buf->data_stack[buf->data_stack_top] = buffer;
+ buf->line[line] = NULL;
+}
+
+void slice_buffer_flush(slice_buffer * buf)
+{
+ int i;
+ for(i = 0; i < buf->line_count; i++){
+ if (buf->line[i])
+ slice_buffer_release(buf, i);
+ }
+}
+
+void slice_buffer_destroy(slice_buffer * buf)
+{
+ int i;
+ slice_buffer_flush(buf);
+
+ for(i = buf->data_count - 1; i >= 0; i--){
+ av_freep(&buf->data_stack[i]);
+ }
+ av_freep(&buf->data_stack);
+ av_freep(&buf->line);
+}
+
+static inline int mirror(int v, int m){
+ while((unsigned)v > (unsigned)m){
+ v=-v;
+ if(v<0) v+= 2*m;
+ }
+ return v;
+}
+
+static av_always_inline void
+lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
+ int dst_step, int src_step, int ref_step,
+ int width, int mul, int add, int shift,
+ int highpass, int inverse){
+ const int mirror_left= !highpass;
+ const int mirror_right= (width&1) ^ highpass;
+ const int w= (width>>1) - 1 + (highpass & width);
+ int i;
+
+#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref)))
+ if(mirror_left){
+ dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse);
+ dst += dst_step;
+ src += src_step;
+ }
+
+ for(i=0; i<w; i++){
+ dst[i*dst_step] =
+ LIFT(src[i*src_step],
+ ((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift),
+ inverse);
+ }
+
+ if(mirror_right){
+ dst[w*dst_step] =
+ LIFT(src[w*src_step],
+ ((mul*2*ref[w*ref_step]+add)>>shift),
+ inverse);
+ }
+}
+
+static av_always_inline void
+inv_lift(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref,
+ int dst_step, int src_step, int ref_step,
+ int width, int mul, int add, int shift,
+ int highpass, int inverse){
+ const int mirror_left= !highpass;
+ const int mirror_right= (width&1) ^ highpass;
+ const int w= (width>>1) - 1 + (highpass & width);
+ int i;
+
+#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref)))
+ if(mirror_left){
+ dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse);
+ dst += dst_step;
+ src += src_step;
+ }
+
+ for(i=0; i<w; i++){
+ dst[i*dst_step] =
+ LIFT(src[i*src_step],
+ ((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift),
+ inverse);
+ }
+
+ if(mirror_right){
+ dst[w*dst_step] =
+ LIFT(src[w*src_step],
+ ((mul*2*ref[w*ref_step]+add)>>shift),
+ inverse);
+ }
+}
+
+#ifndef liftS
+static av_always_inline void
+liftS(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
+ int dst_step, int src_step, int ref_step,
+ int width, int mul, int add, int shift,
+ int highpass, int inverse){
+ const int mirror_left= !highpass;
+ const int mirror_right= (width&1) ^ highpass;
+ const int w= (width>>1) - 1 + (highpass & width);
+ int i;
+
+ assert(shift == 4);
+#define LIFTS(src, ref, inv) \
+ ((inv) ? \
+ (src) + (((ref) + 4*(src))>>shift): \
+ -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23)))
+ if(mirror_left){
+ dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse);
+ dst += dst_step;
+ src += src_step;
+ }
+
+ for(i=0; i<w; i++){
+ dst[i*dst_step] =
+ LIFTS(src[i*src_step],
+ mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add,
+ inverse);
+ }
+
+ if(mirror_right){
+ dst[w*dst_step] =
+ LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse);
+ }
+}
+static av_always_inline void
+inv_liftS(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref,
+ int dst_step, int src_step, int ref_step,
+ int width, int mul, int add, int shift,
+ int highpass, int inverse){
+ const int mirror_left= !highpass;
+ const int mirror_right= (width&1) ^ highpass;
+ const int w= (width>>1) - 1 + (highpass & width);
+ int i;
+
+ assert(shift == 4);
+#define LIFTS(src, ref, inv) \
+ ((inv) ? \
+ (src) + (((ref) + 4*(src))>>shift): \
+ -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23)))
+ if(mirror_left){
+ dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse);
+ dst += dst_step;
+ src += src_step;
+ }
+
+ for(i=0; i<w; i++){
+ dst[i*dst_step] =
+ LIFTS(src[i*src_step],
+ mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add,
+ inverse);
+ }
+
+ if(mirror_right){
+ dst[w*dst_step] =
+ LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse);
+ }
+}
+#endif /* ! liftS */
+
+static void horizontal_decompose53i(DWTELEM *b, int width){
+ DWTELEM temp[width];
+ const int width2= width>>1;
+ int x;
+ const int w2= (width+1)>>1;
+
+ for(x=0; x<width2; x++){
+ temp[x ]= b[2*x ];
+ temp[x+w2]= b[2*x + 1];
+ }
+ if(width&1)
+ temp[x ]= b[2*x ];
+#if 0
+ {
+ int A1,A2,A3,A4;
+ A2= temp[1 ];
+ A4= temp[0 ];
+ A1= temp[0+width2];
+ A1 -= (A2 + A4)>>1;
+ A4 += (A1 + 1)>>1;
+ b[0+width2] = A1;
+ b[0 ] = A4;
+ for(x=1; x+1<width2; x+=2){
+ A3= temp[x+width2];
+ A4= temp[x+1 ];
+ A3 -= (A2 + A4)>>1;
+ A2 += (A1 + A3 + 2)>>2;
+ b[x+width2] = A3;
+ b[x ] = A2;
+
+ A1= temp[x+1+width2];
+ A2= temp[x+2 ];
+ A1 -= (A2 + A4)>>1;
+ A4 += (A1 + A3 + 2)>>2;
+ b[x+1+width2] = A1;
+ b[x+1 ] = A4;
+ }
+ A3= temp[width-1];
+ A3 -= A2;
+ A2 += (A1 + A3 + 2)>>2;
+ b[width -1] = A3;
+ b[width2-1] = A2;
+ }
+#else
+ lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0);
+ lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0);
+#endif /* 0 */
+}
+
+static void vertical_decompose53iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] -= (b0[i] + b2[i])>>1;
+ }
+}
+
+static void vertical_decompose53iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] += (b0[i] + b2[i] + 2)>>2;
+ }
+}
+
+static void spatial_decompose53i(DWTELEM *buffer, int width, int height, int stride){
+ int y;
+ DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride;
+ DWTELEM *b1= buffer + mirror(-2 , height-1)*stride;
+
+ for(y=-2; y<height; y+=2){
+ DWTELEM *b2= buffer + mirror(y+1, height-1)*stride;
+ DWTELEM *b3= buffer + mirror(y+2, height-1)*stride;
+
+ if(y+1<(unsigned)height) horizontal_decompose53i(b2, width);
+ if(y+2<(unsigned)height) horizontal_decompose53i(b3, width);
+
+ if(y+1<(unsigned)height) vertical_decompose53iH0(b1, b2, b3, width);
+ if(y+0<(unsigned)height) vertical_decompose53iL0(b0, b1, b2, width);
+
+ b0=b2;
+ b1=b3;
+ }
+}
+
+static void horizontal_decompose97i(DWTELEM *b, int width){
+ DWTELEM temp[width];
+ const int w2= (width+1)>>1;
+
+ lift (temp+w2, b +1, b , 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1);
+ liftS(temp , b , temp+w2, 1, 2, 1, width, W_BM, W_BO, W_BS, 0, 0);
+ lift (b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0);
+ lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0);
+}
+
+
+static void vertical_decompose97iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] -= (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
+ }
+}
+
+static void vertical_decompose97iH1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] += (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS;
+ }
+}
+
+static void vertical_decompose97iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+#ifdef liftS
+ b1[i] -= (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS;
+#else
+ b1[i] = (16*4*b1[i] - 4*(b0[i] + b2[i]) + W_BO*5 + (5<<27)) / (5*16) - (1<<23);
+#endif
+ }
+}
+
+static void vertical_decompose97iL1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] += (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS;
+ }
+}
+
+static void spatial_decompose97i(DWTELEM *buffer, int width, int height, int stride){
+ int y;
+ DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride;
+ DWTELEM *b1= buffer + mirror(-4 , height-1)*stride;
+ DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride;
+ DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride;
+
+ for(y=-4; y<height; y+=2){
+ DWTELEM *b4= buffer + mirror(y+3, height-1)*stride;
+ DWTELEM *b5= buffer + mirror(y+4, height-1)*stride;
+
+ if(y+3<(unsigned)height) horizontal_decompose97i(b4, width);
+ if(y+4<(unsigned)height) horizontal_decompose97i(b5, width);
+
+ if(y+3<(unsigned)height) vertical_decompose97iH0(b3, b4, b5, width);
+ if(y+2<(unsigned)height) vertical_decompose97iL0(b2, b3, b4, width);
+ if(y+1<(unsigned)height) vertical_decompose97iH1(b1, b2, b3, width);
+ if(y+0<(unsigned)height) vertical_decompose97iL1(b0, b1, b2, width);
+
+ b0=b2;
+ b1=b3;
+ b2=b4;
+ b3=b5;
+ }
+}
+
+void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){
+ int level;
+
+ for(level=0; level<decomposition_count; level++){
+ switch(type){
+ case DWT_97: spatial_decompose97i(buffer, width>>level, height>>level, stride<<level); break;
+ case DWT_53: spatial_decompose53i(buffer, width>>level, height>>level, stride<<level); break;
+ }
+ }
+}
+
+static void horizontal_compose53i(IDWTELEM *b, int width){
+ IDWTELEM temp[width];
+ const int width2= width>>1;
+ const int w2= (width+1)>>1;
+ int x;
+
+ for(x=0; x<width2; x++){
+ temp[2*x ]= b[x ];
+ temp[2*x + 1]= b[x+w2];
+ }
+ if(width&1)
+ temp[2*x ]= b[x ];
+
+ b[0] = temp[0] - ((temp[1]+1)>>1);
+ for(x=2; x<width-1; x+=2){
+ b[x ] = temp[x ] - ((temp[x-1] + temp[x+1]+2)>>2);
+ b[x-1] = temp[x-1] + ((b [x-2] + b [x ]+1)>>1);
+ }
+ if(width&1){
+ b[x ] = temp[x ] - ((temp[x-1]+1)>>1);
+ b[x-1] = temp[x-1] + ((b [x-2] + b [x ]+1)>>1);
+ }else
+ b[x-1] = temp[x-1] + b[x-2];
+}
+
+static void vertical_compose53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] += (b0[i] + b2[i])>>1;
+ }
+}
+
+static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] -= (b0[i] + b2[i] + 2)>>2;
+ }
+}
+
+static void spatial_compose53i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){
+ cs->b0 = slice_buffer_get_line(sb, mirror(-1-1, height-1) * stride_line);
+ cs->b1 = slice_buffer_get_line(sb, mirror(-1 , height-1) * stride_line);
+ cs->y = -1;
+}
+
+static void spatial_compose53i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){
+ cs->b0 = buffer + mirror(-1-1, height-1)*stride;
+ cs->b1 = buffer + mirror(-1 , height-1)*stride;
+ cs->y = -1;
+}
+
+static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){
+ int y= cs->y;
+
+ IDWTELEM *b0= cs->b0;
+ IDWTELEM *b1= cs->b1;
+ IDWTELEM *b2= slice_buffer_get_line(sb, mirror(y+1, height-1) * stride_line);
+ IDWTELEM *b3= slice_buffer_get_line(sb, mirror(y+2, height-1) * stride_line);
+
+ if(y+1<(unsigned)height && y<(unsigned)height){
+ int x;
+
+ for(x=0; x<width; x++){
+ b2[x] -= (b1[x] + b3[x] + 2)>>2;
+ b1[x] += (b0[x] + b2[x])>>1;
+ }
+ }else{
+ if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width);
+ if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width);
+ }
+
+ if(y-1<(unsigned)height) horizontal_compose53i(b0, width);
+ if(y+0<(unsigned)height) horizontal_compose53i(b1, width);
+
+ cs->b0 = b2;
+ cs->b1 = b3;
+ cs->y += 2;
+}
+
+static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride){
+ int y= cs->y;
+ IDWTELEM *b0= cs->b0;
+ IDWTELEM *b1= cs->b1;
+ IDWTELEM *b2= buffer + mirror(y+1, height-1)*stride;
+ IDWTELEM *b3= buffer + mirror(y+2, height-1)*stride;
+
+ if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width);
+ if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width);
+
+ if(y-1<(unsigned)height) horizontal_compose53i(b0, width);
+ if(y+0<(unsigned)height) horizontal_compose53i(b1, width);
+
+ cs->b0 = b2;
+ cs->b1 = b3;
+ cs->y += 2;
+}
+
+static void av_unused spatial_compose53i(IDWTELEM *buffer, int width, int height, int stride){
+ DWTCompose cs;
+ spatial_compose53i_init(&cs, buffer, height, stride);
+ while(cs.y <= height)
+ spatial_compose53i_dy(&cs, buffer, width, height, stride);
+}
+
+
+void ff_snow_horizontal_compose97i(IDWTELEM *b, int width){
+ IDWTELEM temp[width];
+ const int w2= (width+1)>>1;
+
+#if 0 //maybe more understadable but slower
+ inv_lift (temp , b , b +w2, 2, 1, 1, width, W_DM, W_DO, W_DS, 0, 1);
+ inv_lift (temp+1 , b +w2, temp , 2, 1, 2, width, W_CM, W_CO, W_CS, 1, 1);
+
+ inv_liftS(b , temp , temp+1 , 2, 2, 2, width, W_BM, W_BO, W_BS, 0, 1);
+ inv_lift (b+1 , temp+1 , b , 2, 2, 2, width, W_AM, W_AO, W_AS, 1, 0);
+#else
+ int x;
+ temp[0] = b[0] - ((3*b[w2]+2)>>2);
+ for(x=1; x<(width>>1); x++){
+ temp[2*x ] = b[x ] - ((3*(b [x+w2-1] + b[x+w2])+4)>>3);
+ temp[2*x-1] = b[x+w2-1] - temp[2*x-2] - temp[2*x];
+ }
+ if(width&1){
+ temp[2*x ] = b[x ] - ((3*b [x+w2-1]+2)>>2);
+ temp[2*x-1] = b[x+w2-1] - temp[2*x-2] - temp[2*x];
+ }else
+ temp[2*x-1] = b[x+w2-1] - 2*temp[2*x-2];
+
+ b[0] = temp[0] + ((2*temp[0] + temp[1]+4)>>3);
+ for(x=2; x<width-1; x+=2){
+ b[x ] = temp[x ] + ((4*temp[x ] + temp[x-1] + temp[x+1]+8)>>4);
+ b[x-1] = temp[x-1] + ((3*(b [x-2] + b [x ] ))>>1);
+ }
+ if(width&1){
+ b[x ] = temp[x ] + ((2*temp[x ] + temp[x-1]+4)>>3);
+ b[x-1] = temp[x-1] + ((3*(b [x-2] + b [x ] ))>>1);
+ }else
+ b[x-1] = temp[x-1] + 3*b [x-2];
+#endif
+}
+
+static void vertical_compose97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
+ }
+}
+
+static void vertical_compose97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] -= (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS;
+ }
+}
+
+static void vertical_compose97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+#ifdef liftS
+ b1[i] += (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS;
+#else
+ b1[i] += (W_BM*(b0[i] + b2[i])+4*b1[i]+W_BO)>>W_BS;
+#endif
+ }
+}
+
+static void vertical_compose97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b1[i] -= (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS;
+ }
+}
+
+void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
+ int i;
+
+ for(i=0; i<width; i++){
+ b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
+ b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
+#ifdef liftS
+ b2[i] += (W_BM*(b1[i] + b3[i])+W_BO)>>W_BS;
+#else
+ b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
+#endif
+ b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
+ }
+}
+
+static void spatial_compose97i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){
+ cs->b0 = slice_buffer_get_line(sb, mirror(-3-1, height-1) * stride_line);
+ cs->b1 = slice_buffer_get_line(sb, mirror(-3 , height-1) * stride_line);
+ cs->b2 = slice_buffer_get_line(sb, mirror(-3+1, height-1) * stride_line);
+ cs->b3 = slice_buffer_get_line(sb, mirror(-3+2, height-1) * stride_line);
+ cs->y = -3;
+}
+
+static void spatial_compose97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){
+ cs->b0 = buffer + mirror(-3-1, height-1)*stride;
+ cs->b1 = buffer + mirror(-3 , height-1)*stride;
+ cs->b2 = buffer + mirror(-3+1, height-1)*stride;
+ cs->b3 = buffer + mirror(-3+2, height-1)*stride;
+ cs->y = -3;
+}
+
+static void spatial_compose97i_dy_buffered(DSPContext *dsp, DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){
+ int y = cs->y;
+
+ IDWTELEM *b0= cs->b0;
+ IDWTELEM *b1= cs->b1;
+ IDWTELEM *b2= cs->b2;
+ IDWTELEM *b3= cs->b3;
+ IDWTELEM *b4= slice_buffer_get_line(sb, mirror(y + 3, height - 1) * stride_line);
+ IDWTELEM *b5= slice_buffer_get_line(sb, mirror(y + 4, height - 1) * stride_line);
+
+ if(y>0 && y+4<height){
+ dsp->vertical_compose97i(b0, b1, b2, b3, b4, b5, width);
+ }else{
+ if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width);
+ if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width);
+ if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width);
+ if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width);
+ }
+
+ if(y-1<(unsigned)height) dsp->horizontal_compose97i(b0, width);
+ if(y+0<(unsigned)height) dsp->horizontal_compose97i(b1, width);
+
+ cs->b0=b2;
+ cs->b1=b3;
+ cs->b2=b4;
+ cs->b3=b5;
+ cs->y += 2;
+}
+
+static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride){
+ int y = cs->y;
+ IDWTELEM *b0= cs->b0;
+ IDWTELEM *b1= cs->b1;
+ IDWTELEM *b2= cs->b2;
+ IDWTELEM *b3= cs->b3;
+ IDWTELEM *b4= buffer + mirror(y+3, height-1)*stride;
+ IDWTELEM *b5= buffer + mirror(y+4, height-1)*stride;
+
+ if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width);
+ if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width);
+ if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width);
+ if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width);
+
+ if(y-1<(unsigned)height) ff_snow_horizontal_compose97i(b0, width);
+ if(y+0<(unsigned)height) ff_snow_horizontal_compose97i(b1, width);
+
+ cs->b0=b2;
+ cs->b1=b3;
+ cs->b2=b4;
+ cs->b3=b5;
+ cs->y += 2;
+}
+
+static void av_unused spatial_compose97i(IDWTELEM *buffer, int width, int height, int stride){
+ DWTCompose cs;
+ spatial_compose97i_init(&cs, buffer, height, stride);
+ while(cs.y <= height)
+ spatial_compose97i_dy(&cs, buffer, width, height, stride);
+}
+
+void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count){
+ int level;
+ for(level=decomposition_count-1; level>=0; level--){
+ switch(type){
+ case DWT_97: spatial_compose97i_buffered_init(cs+level, sb, height>>level, stride_line<<level); break;
+ case DWT_53: spatial_compose53i_buffered_init(cs+level, sb, height>>level, stride_line<<level); break;
+ }
+ }
+}
+
+void ff_spatial_idwt_buffered_slice(DSPContext *dsp, DWTCompose *cs, slice_buffer * slice_buf, int width, int height, int stride_line, int type, int decomposition_count, int y){
+ const int support = type==1 ? 3 : 5;
+ int level;
+ if(type==2) return;
+
+ for(level=decomposition_count-1; level>=0; level--){
+ while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){
+ switch(type){
+ case DWT_97: spatial_compose97i_dy_buffered(dsp, cs+level, slice_buf, width>>level, height>>level, stride_line<<level);
+ break;
+ case DWT_53: spatial_compose53i_dy_buffered(cs+level, slice_buf, width>>level, height>>level, stride_line<<level);
+ break;
+ }
+ }
+ }
+}
+
+void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){
+ int level;
+ for(level=decomposition_count-1; level>=0; level--){
+ switch(type){
+ case DWT_97: spatial_compose97i_init(cs+level, buffer, height>>level, stride<<level); break;
+ case DWT_53: spatial_compose53i_init(cs+level, buffer, height>>level, stride<<level); break;
+ }
+ }
+}
+
+void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y){
+ const int support = type==1 ? 3 : 5;
+ int level;
+ if(type==2) return;
+
+ for(level=decomposition_count-1; level>=0; level--){
+ while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){
+ switch(type){
+ case DWT_97: spatial_compose97i_dy(cs+level, buffer, width>>level, height>>level, stride<<level);
+ break;
+ case DWT_53: spatial_compose53i_dy(cs+level, buffer, width>>level, height>>level, stride<<level);
+ break;
+ }
+ }
+ }
+}
+
+void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){
+ DWTCompose cs[MAX_DECOMPOSITIONS];
+ int y;
+ ff_spatial_idwt_init(cs, buffer, width, height, stride, type, decomposition_count);
+ for(y=0; y<height; y+=4)
+ ff_spatial_idwt_slice(cs, buffer, width, height, stride, type, decomposition_count, y);
+}
diff --git a/libavcodec/snow.h b/libavcodec/dwt.h
similarity index 62%
copy from libavcodec/snow.h
copy to libavcodec/dwt.h
index ee0d073..900c194 100644
--- a/libavcodec/snow.h
+++ b/libavcodec/dwt.h
@@ -1,6 +1,5 @@
/*
- * Copyright (C) 2004 Michael Niedermayer <michaelni at gmx.at>
- * Copyright (C) 2006 Robert Edele <yartrebo at earthlink.net>
+ * Copyright (C) 2004-2010 Michael Niedermayer <michaelni at gmx.at>
*
* This file is part of FFmpeg.
*
@@ -19,26 +18,18 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#ifndef AVCODEC_SNOW_H
-#define AVCODEC_SNOW_H
+#ifndef AVCODEC_DWT_H
+#define AVCODEC_DWT_H
#include "dsputil.h"
-#define MID_STATE 128
-
-#define MAX_DECOMPOSITIONS 8
-#define MAX_PLANES 4
-#define QSHIFT 5
-#define QROOT (1<<QSHIFT)
-#define LOSSLESS_QLOG -128
-#define FRAC_BITS 4
-#define MAX_REF_FRAMES 8
-
-#define LOG2_OBMC_MAX 8
-#define OBMC_MAX (1<<(LOG2_OBMC_MAX))
-
-#define DWT_97 0
-#define DWT_53 1
+typedef struct {
+ IDWTELEM *b0;
+ IDWTELEM *b1;
+ IDWTELEM *b2;
+ IDWTELEM *b3;
+ int y;
+} DWTCompose;
/** Used to minimize the amount of memory used in order to optimize cache performance. **/
struct slice_buffer_s {
@@ -51,6 +42,11 @@ struct slice_buffer_s {
IDWTELEM * base_buffer; ///< Buffer that this structure is caching.
};
+#define MAX_DECOMPOSITIONS 8
+
+#define DWT_97 0
+#define DWT_53 1
+
#define liftS lift
#if 1
#define W_AM 3
@@ -121,53 +117,28 @@ struct slice_buffer_s {
#define W_DS 9
#endif
+#define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : slice_buffer_load_line((slice_buf), (line_num)))
+//#define slice_buffer_get_line(slice_buf, line_num) (slice_buffer_load_line((slice_buf), (line_num)))
+
+void slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer);
+void slice_buffer_release(slice_buffer * buf, int line);
+void slice_buffer_flush(slice_buffer * buf);
+void slice_buffer_destroy(slice_buffer * buf);
+IDWTELEM * slice_buffer_load_line(slice_buffer * buf, int line);
+
void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
void ff_snow_horizontal_compose97i(IDWTELEM *b, int width);
void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
-#if CONFIG_SNOW_ENCODER
int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
-#endif
void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
-/* C bits used by mmx/sse2/altivec */
-
-static av_always_inline void snow_interleave_line_header(int * i, int width, IDWTELEM * low, IDWTELEM * high){
- (*i) = (width) - 2;
-
- if (width & 1){
- low[(*i)+1] = low[((*i)+1)>>1];
- (*i)--;
- }
-}
-
-static av_always_inline void snow_interleave_line_footer(int * i, IDWTELEM * low, IDWTELEM * high){
- for (; (*i)>=0; (*i)-=2){
- low[(*i)+1] = high[(*i)>>1];
- low[*i] = low[(*i)>>1];
- }
-}
-
-static av_always_inline void snow_horizontal_compose_lift_lead_out(int i, IDWTELEM * dst, IDWTELEM * src, IDWTELEM * ref, int width, int w, int lift_high, int mul, int add, int shift){
- for(; i<w; i++){
- dst[i] = src[i] - ((mul * (ref[i] + ref[i + 1]) + add) >> shift);
- }
-
- if((width^lift_high)&1){
- dst[w] = src[w] - ((mul * 2 * ref[w] + add) >> shift);
- }
-}
-
-static av_always_inline void snow_horizontal_compose_liftS_lead_out(int i, IDWTELEM * dst, IDWTELEM * src, IDWTELEM * ref, int width, int w){
- for(; i<w; i++){
- dst[i] = src[i] + ((ref[i] + ref[(i+1)]+W_BO + 4 * src[i]) >> W_BS);
- }
-
- if(width&1){
- dst[w] = src[w] + ((2 * ref[w] + W_BO + 4 * src[w]) >> W_BS);
- }
-}
-
-#endif /* AVCODEC_SNOW_H */
+void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count);
+void ff_spatial_idwt_buffered_slice(DSPContext *dsp, DWTCompose *cs, slice_buffer * slice_buf, int width, int height, int stride_line, int type, int decomposition_count, int y);
+void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count);
+void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y);
+void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count);
+
+#endif /* AVCODEC_DWT_H */
diff --git a/libavcodec/snow.c b/libavcodec/snow.c
index d51c998..60a46c6 100644
--- a/libavcodec/snow.c
+++ b/libavcodec/snow.c
@@ -21,6 +21,7 @@
#include "libavutil/intmath.h"
#include "avcodec.h"
#include "dsputil.h"
+#include "dwt.h"
#include "snow.h"
#include "rangecoder.h"
@@ -494,85 +495,6 @@ typedef struct SnowContext{
uint8_t *scratchbuf;
}SnowContext;
-typedef struct {
- IDWTELEM *b0;
- IDWTELEM *b1;
- IDWTELEM *b2;
- IDWTELEM *b3;
- int y;
-} DWTCompose;
-
-#define slice_buffer_get_line(slice_buf, line_num) ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num] : slice_buffer_load_line((slice_buf), (line_num)))
-//#define slice_buffer_get_line(slice_buf, line_num) (slice_buffer_load_line((slice_buf), (line_num)))
-
-static void slice_buffer_init(slice_buffer * buf, int line_count, int max_allocated_lines, int line_width, IDWTELEM * base_buffer)
-{
- int i;
-
- buf->base_buffer = base_buffer;
- buf->line_count = line_count;
- buf->line_width = line_width;
- buf->data_count = max_allocated_lines;
- buf->line = av_mallocz (sizeof(IDWTELEM *) * line_count);
- buf->data_stack = av_malloc (sizeof(IDWTELEM *) * max_allocated_lines);
-
- for(i = 0; i < max_allocated_lines; i++){
- buf->data_stack[i] = av_malloc (sizeof(IDWTELEM) * line_width);
- }
-
- buf->data_stack_top = max_allocated_lines - 1;
-}
-
-static IDWTELEM * slice_buffer_load_line(slice_buffer * buf, int line)
-{
- IDWTELEM * buffer;
-
- assert(buf->data_stack_top >= 0);
-// assert(!buf->line[line]);
- if (buf->line[line])
- return buf->line[line];
-
- buffer = buf->data_stack[buf->data_stack_top];
- buf->data_stack_top--;
- buf->line[line] = buffer;
-
- return buffer;
-}
-
-static void slice_buffer_release(slice_buffer * buf, int line)
-{
- IDWTELEM * buffer;
-
- assert(line >= 0 && line < buf->line_count);
- assert(buf->line[line]);
-
- buffer = buf->line[line];
- buf->data_stack_top++;
- buf->data_stack[buf->data_stack_top] = buffer;
- buf->line[line] = NULL;
-}
-
-static void slice_buffer_flush(slice_buffer * buf)
-{
- int i;
- for(i = 0; i < buf->line_count; i++){
- if (buf->line[i])
- slice_buffer_release(buf, i);
- }
-}
-
-static void slice_buffer_destroy(slice_buffer * buf)
-{
- int i;
- slice_buffer_flush(buf);
-
- for(i = buf->data_count - 1; i >= 0; i--){
- av_freep(&buf->data_stack[i]);
- }
- av_freep(&buf->data_stack);
- av_freep(&buf->line);
-}
-
#ifdef __sgi
// Avoid a name clash on SGI IRIX
#undef qexp
@@ -580,14 +502,6 @@ static void slice_buffer_destroy(slice_buffer * buf)
#define QEXPSHIFT (7-FRAC_BITS+8) //FIXME try to change this to 0
static uint8_t qexp[QROOT];
-static inline int mirror(int v, int m){
- while((unsigned)v > (unsigned)m){
- v=-v;
- if(v<0) v+= 2*m;
- }
- return v;
-}
-
static inline void put_symbol(RangeCoder *c, uint8_t *state, int v, int is_signed){
int i;
@@ -709,605 +623,6 @@ static inline int get_symbol2(RangeCoder *c, uint8_t *state, int log2){
return v;
}
-static av_always_inline void
-lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
- int dst_step, int src_step, int ref_step,
- int width, int mul, int add, int shift,
- int highpass, int inverse){
- const int mirror_left= !highpass;
- const int mirror_right= (width&1) ^ highpass;
- const int w= (width>>1) - 1 + (highpass & width);
- int i;
-
-#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref)))
- if(mirror_left){
- dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse);
- dst += dst_step;
- src += src_step;
- }
-
- for(i=0; i<w; i++){
- dst[i*dst_step] =
- LIFT(src[i*src_step],
- ((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift),
- inverse);
- }
-
- if(mirror_right){
- dst[w*dst_step] =
- LIFT(src[w*src_step],
- ((mul*2*ref[w*ref_step]+add)>>shift),
- inverse);
- }
-}
-
-static av_always_inline void
-inv_lift(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref,
- int dst_step, int src_step, int ref_step,
- int width, int mul, int add, int shift,
- int highpass, int inverse){
- const int mirror_left= !highpass;
- const int mirror_right= (width&1) ^ highpass;
- const int w= (width>>1) - 1 + (highpass & width);
- int i;
-
-#define LIFT(src, ref, inv) ((src) + ((inv) ? - (ref) : + (ref)))
- if(mirror_left){
- dst[0] = LIFT(src[0], ((mul*2*ref[0]+add)>>shift), inverse);
- dst += dst_step;
- src += src_step;
- }
-
- for(i=0; i<w; i++){
- dst[i*dst_step] =
- LIFT(src[i*src_step],
- ((mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add)>>shift),
- inverse);
- }
-
- if(mirror_right){
- dst[w*dst_step] =
- LIFT(src[w*src_step],
- ((mul*2*ref[w*ref_step]+add)>>shift),
- inverse);
- }
-}
-
-#ifndef liftS
-static av_always_inline void
-liftS(DWTELEM *dst, DWTELEM *src, DWTELEM *ref,
- int dst_step, int src_step, int ref_step,
- int width, int mul, int add, int shift,
- int highpass, int inverse){
- const int mirror_left= !highpass;
- const int mirror_right= (width&1) ^ highpass;
- const int w= (width>>1) - 1 + (highpass & width);
- int i;
-
- assert(shift == 4);
-#define LIFTS(src, ref, inv) \
- ((inv) ? \
- (src) + (((ref) + 4*(src))>>shift): \
- -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23)))
- if(mirror_left){
- dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse);
- dst += dst_step;
- src += src_step;
- }
-
- for(i=0; i<w; i++){
- dst[i*dst_step] =
- LIFTS(src[i*src_step],
- mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add,
- inverse);
- }
-
- if(mirror_right){
- dst[w*dst_step] =
- LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse);
- }
-}
-static av_always_inline void
-inv_liftS(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *ref,
- int dst_step, int src_step, int ref_step,
- int width, int mul, int add, int shift,
- int highpass, int inverse){
- const int mirror_left= !highpass;
- const int mirror_right= (width&1) ^ highpass;
- const int w= (width>>1) - 1 + (highpass & width);
- int i;
-
- assert(shift == 4);
-#define LIFTS(src, ref, inv) \
- ((inv) ? \
- (src) + (((ref) + 4*(src))>>shift): \
- -((-16*(src) + (ref) + add/4 + 1 + (5<<25))/(5*4) - (1<<23)))
- if(mirror_left){
- dst[0] = LIFTS(src[0], mul*2*ref[0]+add, inverse);
- dst += dst_step;
- src += src_step;
- }
-
- for(i=0; i<w; i++){
- dst[i*dst_step] =
- LIFTS(src[i*src_step],
- mul*(ref[i*ref_step] + ref[(i+1)*ref_step])+add,
- inverse);
- }
-
- if(mirror_right){
- dst[w*dst_step] =
- LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse);
- }
-}
-#endif /* ! liftS */
-
-static void horizontal_decompose53i(DWTELEM *b, int width){
- DWTELEM temp[width];
- const int width2= width>>1;
- int x;
- const int w2= (width+1)>>1;
-
- for(x=0; x<width2; x++){
- temp[x ]= b[2*x ];
- temp[x+w2]= b[2*x + 1];
- }
- if(width&1)
- temp[x ]= b[2*x ];
-#if 0
- {
- int A1,A2,A3,A4;
- A2= temp[1 ];
- A4= temp[0 ];
- A1= temp[0+width2];
- A1 -= (A2 + A4)>>1;
- A4 += (A1 + 1)>>1;
- b[0+width2] = A1;
- b[0 ] = A4;
- for(x=1; x+1<width2; x+=2){
- A3= temp[x+width2];
- A4= temp[x+1 ];
- A3 -= (A2 + A4)>>1;
- A2 += (A1 + A3 + 2)>>2;
- b[x+width2] = A3;
- b[x ] = A2;
-
- A1= temp[x+1+width2];
- A2= temp[x+2 ];
- A1 -= (A2 + A4)>>1;
- A4 += (A1 + A3 + 2)>>2;
- b[x+1+width2] = A1;
- b[x+1 ] = A4;
- }
- A3= temp[width-1];
- A3 -= A2;
- A2 += (A1 + A3 + 2)>>2;
- b[width -1] = A3;
- b[width2-1] = A2;
- }
-#else
- lift(b+w2, temp+w2, temp, 1, 1, 1, width, -1, 0, 1, 1, 0);
- lift(b , temp , b+w2, 1, 1, 1, width, 1, 2, 2, 0, 0);
-#endif /* 0 */
-}
-
-static void vertical_decompose53iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] -= (b0[i] + b2[i])>>1;
- }
-}
-
-static void vertical_decompose53iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] += (b0[i] + b2[i] + 2)>>2;
- }
-}
-
-static void spatial_decompose53i(DWTELEM *buffer, int width, int height, int stride){
- int y;
- DWTELEM *b0= buffer + mirror(-2-1, height-1)*stride;
- DWTELEM *b1= buffer + mirror(-2 , height-1)*stride;
-
- for(y=-2; y<height; y+=2){
- DWTELEM *b2= buffer + mirror(y+1, height-1)*stride;
- DWTELEM *b3= buffer + mirror(y+2, height-1)*stride;
-
- if(y+1<(unsigned)height) horizontal_decompose53i(b2, width);
- if(y+2<(unsigned)height) horizontal_decompose53i(b3, width);
-
- if(y+1<(unsigned)height) vertical_decompose53iH0(b1, b2, b3, width);
- if(y+0<(unsigned)height) vertical_decompose53iL0(b0, b1, b2, width);
-
- b0=b2;
- b1=b3;
- }
-}
-
-static void horizontal_decompose97i(DWTELEM *b, int width){
- DWTELEM temp[width];
- const int w2= (width+1)>>1;
-
- lift (temp+w2, b +1, b , 1, 2, 2, width, W_AM, W_AO, W_AS, 1, 1);
- liftS(temp , b , temp+w2, 1, 2, 1, width, W_BM, W_BO, W_BS, 0, 0);
- lift (b +w2, temp+w2, temp , 1, 1, 1, width, W_CM, W_CO, W_CS, 1, 0);
- lift (b , temp , b +w2, 1, 1, 1, width, W_DM, W_DO, W_DS, 0, 0);
-}
-
-
-static void vertical_decompose97iH0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] -= (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
- }
-}
-
-static void vertical_decompose97iH1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] += (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS;
- }
-}
-
-static void vertical_decompose97iL0(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
-#ifdef liftS
- b1[i] -= (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS;
-#else
- b1[i] = (16*4*b1[i] - 4*(b0[i] + b2[i]) + W_BO*5 + (5<<27)) / (5*16) - (1<<23);
-#endif
- }
-}
-
-static void vertical_decompose97iL1(DWTELEM *b0, DWTELEM *b1, DWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] += (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS;
- }
-}
-
-static void spatial_decompose97i(DWTELEM *buffer, int width, int height, int stride){
- int y;
- DWTELEM *b0= buffer + mirror(-4-1, height-1)*stride;
- DWTELEM *b1= buffer + mirror(-4 , height-1)*stride;
- DWTELEM *b2= buffer + mirror(-4+1, height-1)*stride;
- DWTELEM *b3= buffer + mirror(-4+2, height-1)*stride;
-
- for(y=-4; y<height; y+=2){
- DWTELEM *b4= buffer + mirror(y+3, height-1)*stride;
- DWTELEM *b5= buffer + mirror(y+4, height-1)*stride;
-
- if(y+3<(unsigned)height) horizontal_decompose97i(b4, width);
- if(y+4<(unsigned)height) horizontal_decompose97i(b5, width);
-
- if(y+3<(unsigned)height) vertical_decompose97iH0(b3, b4, b5, width);
- if(y+2<(unsigned)height) vertical_decompose97iL0(b2, b3, b4, width);
- if(y+1<(unsigned)height) vertical_decompose97iH1(b1, b2, b3, width);
- if(y+0<(unsigned)height) vertical_decompose97iL1(b0, b1, b2, width);
-
- b0=b2;
- b1=b3;
- b2=b4;
- b3=b5;
- }
-}
-
-void ff_spatial_dwt(DWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){
- int level;
-
- for(level=0; level<decomposition_count; level++){
- switch(type){
- case DWT_97: spatial_decompose97i(buffer, width>>level, height>>level, stride<<level); break;
- case DWT_53: spatial_decompose53i(buffer, width>>level, height>>level, stride<<level); break;
- }
- }
-}
-
-static void horizontal_compose53i(IDWTELEM *b, int width){
- IDWTELEM temp[width];
- const int width2= width>>1;
- const int w2= (width+1)>>1;
- int x;
-
- for(x=0; x<width2; x++){
- temp[2*x ]= b[x ];
- temp[2*x + 1]= b[x+w2];
- }
- if(width&1)
- temp[2*x ]= b[x ];
-
- b[0] = temp[0] - ((temp[1]+1)>>1);
- for(x=2; x<width-1; x+=2){
- b[x ] = temp[x ] - ((temp[x-1] + temp[x+1]+2)>>2);
- b[x-1] = temp[x-1] + ((b [x-2] + b [x ]+1)>>1);
- }
- if(width&1){
- b[x ] = temp[x ] - ((temp[x-1]+1)>>1);
- b[x-1] = temp[x-1] + ((b [x-2] + b [x ]+1)>>1);
- }else
- b[x-1] = temp[x-1] + b[x-2];
-}
-
-static void vertical_compose53iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] += (b0[i] + b2[i])>>1;
- }
-}
-
-static void vertical_compose53iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] -= (b0[i] + b2[i] + 2)>>2;
- }
-}
-
-static void spatial_compose53i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){
- cs->b0 = slice_buffer_get_line(sb, mirror(-1-1, height-1) * stride_line);
- cs->b1 = slice_buffer_get_line(sb, mirror(-1 , height-1) * stride_line);
- cs->y = -1;
-}
-
-static void spatial_compose53i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){
- cs->b0 = buffer + mirror(-1-1, height-1)*stride;
- cs->b1 = buffer + mirror(-1 , height-1)*stride;
- cs->y = -1;
-}
-
-static void spatial_compose53i_dy_buffered(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){
- int y= cs->y;
-
- IDWTELEM *b0= cs->b0;
- IDWTELEM *b1= cs->b1;
- IDWTELEM *b2= slice_buffer_get_line(sb, mirror(y+1, height-1) * stride_line);
- IDWTELEM *b3= slice_buffer_get_line(sb, mirror(y+2, height-1) * stride_line);
-
- if(y+1<(unsigned)height && y<(unsigned)height){
- int x;
-
- for(x=0; x<width; x++){
- b2[x] -= (b1[x] + b3[x] + 2)>>2;
- b1[x] += (b0[x] + b2[x])>>1;
- }
- }else{
- if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width);
- if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width);
- }
-
- if(y-1<(unsigned)height) horizontal_compose53i(b0, width);
- if(y+0<(unsigned)height) horizontal_compose53i(b1, width);
-
- cs->b0 = b2;
- cs->b1 = b3;
- cs->y += 2;
-}
-
-static void spatial_compose53i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride){
- int y= cs->y;
- IDWTELEM *b0= cs->b0;
- IDWTELEM *b1= cs->b1;
- IDWTELEM *b2= buffer + mirror(y+1, height-1)*stride;
- IDWTELEM *b3= buffer + mirror(y+2, height-1)*stride;
-
- if(y+1<(unsigned)height) vertical_compose53iL0(b1, b2, b3, width);
- if(y+0<(unsigned)height) vertical_compose53iH0(b0, b1, b2, width);
-
- if(y-1<(unsigned)height) horizontal_compose53i(b0, width);
- if(y+0<(unsigned)height) horizontal_compose53i(b1, width);
-
- cs->b0 = b2;
- cs->b1 = b3;
- cs->y += 2;
-}
-
-static void av_unused spatial_compose53i(IDWTELEM *buffer, int width, int height, int stride){
- DWTCompose cs;
- spatial_compose53i_init(&cs, buffer, height, stride);
- while(cs.y <= height)
- spatial_compose53i_dy(&cs, buffer, width, height, stride);
-}
-
-
-void ff_snow_horizontal_compose97i(IDWTELEM *b, int width){
- IDWTELEM temp[width];
- const int w2= (width+1)>>1;
-
-#if 0 //maybe more understadable but slower
- inv_lift (temp , b , b +w2, 2, 1, 1, width, W_DM, W_DO, W_DS, 0, 1);
- inv_lift (temp+1 , b +w2, temp , 2, 1, 2, width, W_CM, W_CO, W_CS, 1, 1);
-
- inv_liftS(b , temp , temp+1 , 2, 2, 2, width, W_BM, W_BO, W_BS, 0, 1);
- inv_lift (b+1 , temp+1 , b , 2, 2, 2, width, W_AM, W_AO, W_AS, 1, 0);
-#else
- int x;
- temp[0] = b[0] - ((3*b[w2]+2)>>2);
- for(x=1; x<(width>>1); x++){
- temp[2*x ] = b[x ] - ((3*(b [x+w2-1] + b[x+w2])+4)>>3);
- temp[2*x-1] = b[x+w2-1] - temp[2*x-2] - temp[2*x];
- }
- if(width&1){
- temp[2*x ] = b[x ] - ((3*b [x+w2-1]+2)>>2);
- temp[2*x-1] = b[x+w2-1] - temp[2*x-2] - temp[2*x];
- }else
- temp[2*x-1] = b[x+w2-1] - 2*temp[2*x-2];
-
- b[0] = temp[0] + ((2*temp[0] + temp[1]+4)>>3);
- for(x=2; x<width-1; x+=2){
- b[x ] = temp[x ] + ((4*temp[x ] + temp[x-1] + temp[x+1]+8)>>4);
- b[x-1] = temp[x-1] + ((3*(b [x-2] + b [x ] ))>>1);
- }
- if(width&1){
- b[x ] = temp[x ] + ((2*temp[x ] + temp[x-1]+4)>>3);
- b[x-1] = temp[x-1] + ((3*(b [x-2] + b [x ] ))>>1);
- }else
- b[x-1] = temp[x-1] + 3*b [x-2];
-#endif
-}
-
-static void vertical_compose97iH0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
- }
-}
-
-static void vertical_compose97iH1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] -= (W_CM*(b0[i] + b2[i])+W_CO)>>W_CS;
- }
-}
-
-static void vertical_compose97iL0(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
-#ifdef liftS
- b1[i] += (W_BM*(b0[i] + b2[i])+W_BO)>>W_BS;
-#else
- b1[i] += (W_BM*(b0[i] + b2[i])+4*b1[i]+W_BO)>>W_BS;
-#endif
- }
-}
-
-static void vertical_compose97iL1(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, int width){
- int i;
-
- for(i=0; i<width; i++){
- b1[i] -= (W_DM*(b0[i] + b2[i])+W_DO)>>W_DS;
- }
-}
-
-void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width){
- int i;
-
- for(i=0; i<width; i++){
- b4[i] -= (W_DM*(b3[i] + b5[i])+W_DO)>>W_DS;
- b3[i] -= (W_CM*(b2[i] + b4[i])+W_CO)>>W_CS;
-#ifdef liftS
- b2[i] += (W_BM*(b1[i] + b3[i])+W_BO)>>W_BS;
-#else
- b2[i] += (W_BM*(b1[i] + b3[i])+4*b2[i]+W_BO)>>W_BS;
-#endif
- b1[i] += (W_AM*(b0[i] + b2[i])+W_AO)>>W_AS;
- }
-}
-
-static void spatial_compose97i_buffered_init(DWTCompose *cs, slice_buffer * sb, int height, int stride_line){
- cs->b0 = slice_buffer_get_line(sb, mirror(-3-1, height-1) * stride_line);
- cs->b1 = slice_buffer_get_line(sb, mirror(-3 , height-1) * stride_line);
- cs->b2 = slice_buffer_get_line(sb, mirror(-3+1, height-1) * stride_line);
- cs->b3 = slice_buffer_get_line(sb, mirror(-3+2, height-1) * stride_line);
- cs->y = -3;
-}
-
-static void spatial_compose97i_init(DWTCompose *cs, IDWTELEM *buffer, int height, int stride){
- cs->b0 = buffer + mirror(-3-1, height-1)*stride;
- cs->b1 = buffer + mirror(-3 , height-1)*stride;
- cs->b2 = buffer + mirror(-3+1, height-1)*stride;
- cs->b3 = buffer + mirror(-3+2, height-1)*stride;
- cs->y = -3;
-}
-
-static void spatial_compose97i_dy_buffered(DSPContext *dsp, DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line){
- int y = cs->y;
-
- IDWTELEM *b0= cs->b0;
- IDWTELEM *b1= cs->b1;
- IDWTELEM *b2= cs->b2;
- IDWTELEM *b3= cs->b3;
- IDWTELEM *b4= slice_buffer_get_line(sb, mirror(y + 3, height - 1) * stride_line);
- IDWTELEM *b5= slice_buffer_get_line(sb, mirror(y + 4, height - 1) * stride_line);
-
- if(y>0 && y+4<height){
- dsp->vertical_compose97i(b0, b1, b2, b3, b4, b5, width);
- }else{
- if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width);
- if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width);
- if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width);
- if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width);
- }
-
- if(y-1<(unsigned)height) dsp->horizontal_compose97i(b0, width);
- if(y+0<(unsigned)height) dsp->horizontal_compose97i(b1, width);
-
- cs->b0=b2;
- cs->b1=b3;
- cs->b2=b4;
- cs->b3=b5;
- cs->y += 2;
-}
-
-static void spatial_compose97i_dy(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride){
- int y = cs->y;
- IDWTELEM *b0= cs->b0;
- IDWTELEM *b1= cs->b1;
- IDWTELEM *b2= cs->b2;
- IDWTELEM *b3= cs->b3;
- IDWTELEM *b4= buffer + mirror(y+3, height-1)*stride;
- IDWTELEM *b5= buffer + mirror(y+4, height-1)*stride;
-
- if(y+3<(unsigned)height) vertical_compose97iL1(b3, b4, b5, width);
- if(y+2<(unsigned)height) vertical_compose97iH1(b2, b3, b4, width);
- if(y+1<(unsigned)height) vertical_compose97iL0(b1, b2, b3, width);
- if(y+0<(unsigned)height) vertical_compose97iH0(b0, b1, b2, width);
-
- if(y-1<(unsigned)height) ff_snow_horizontal_compose97i(b0, width);
- if(y+0<(unsigned)height) ff_snow_horizontal_compose97i(b1, width);
-
- cs->b0=b2;
- cs->b1=b3;
- cs->b2=b4;
- cs->b3=b5;
- cs->y += 2;
-}
-
-static void av_unused spatial_compose97i(IDWTELEM *buffer, int width, int height, int stride){
- DWTCompose cs;
- spatial_compose97i_init(&cs, buffer, height, stride);
- while(cs.y <= height)
- spatial_compose97i_dy(&cs, buffer, width, height, stride);
-}
-
-static void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer * sb, int width, int height, int stride_line, int type, int decomposition_count){
- int level;
- for(level=decomposition_count-1; level>=0; level--){
- switch(type){
- case DWT_97: spatial_compose97i_buffered_init(cs+level, sb, height>>level, stride_line<<level); break;
- case DWT_53: spatial_compose53i_buffered_init(cs+level, sb, height>>level, stride_line<<level); break;
- }
- }
-}
-
-static void ff_spatial_idwt_buffered_slice(DSPContext *dsp, DWTCompose *cs, slice_buffer * slice_buf, int width, int height, int stride_line, int type, int decomposition_count, int y){
- const int support = type==1 ? 3 : 5;
- int level;
- if(type==2) return;
-
- for(level=decomposition_count-1; level>=0; level--){
- while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){
- switch(type){
- case DWT_97: spatial_compose97i_dy_buffered(dsp, cs+level, slice_buf, width>>level, height>>level, stride_line<<level);
- break;
- case DWT_53: spatial_compose53i_dy_buffered(cs+level, slice_buf, width>>level, height>>level, stride_line<<level);
- break;
- }
- }
- }
-}
-
static inline void unpack_coeffs(SnowContext *s, SubBand *b, SubBand * parent, int orientation){
const int w= b->width;
const int h= b->height;
@@ -3607,41 +2922,6 @@ static int get_4block_rd(SnowContext *s, int mb_x, int mb_y, int plane_index){
return distortion + rate*penalty_factor;
}
-static void ff_spatial_idwt_init(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){
- int level;
- for(level=decomposition_count-1; level>=0; level--){
- switch(type){
- case DWT_97: spatial_compose97i_init(cs+level, buffer, height>>level, stride<<level); break;
- case DWT_53: spatial_compose53i_init(cs+level, buffer, height>>level, stride<<level); break;
- }
- }
-}
-
-static void ff_spatial_idwt_slice(DWTCompose *cs, IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count, int y){
- const int support = type==1 ? 3 : 5;
- int level;
- if(type==2) return;
-
- for(level=decomposition_count-1; level>=0; level--){
- while(cs[level].y <= FFMIN((y>>level)+support, height>>level)){
- switch(type){
- case DWT_97: spatial_compose97i_dy(cs+level, buffer, width>>level, height>>level, stride<<level);
- break;
- case DWT_53: spatial_compose53i_dy(cs+level, buffer, width>>level, height>>level, stride<<level);
- break;
- }
- }
- }
-}
-
-static void ff_spatial_idwt(IDWTELEM *buffer, int width, int height, int stride, int type, int decomposition_count){
- DWTCompose cs[MAX_DECOMPOSITIONS];
- int y;
- ff_spatial_idwt_init(cs, buffer, width, height, stride, type, decomposition_count);
- for(y=0; y<height; y+=4)
- ff_spatial_idwt_slice(cs, buffer, width, height, stride, type, decomposition_count, y);
-}
-
static int encode_subband_c0run(SnowContext *s, SubBand *b, IDWTELEM *src, IDWTELEM *parent, int stride, int orientation){
const int w= b->width;
const int h= b->height;
diff --git a/libavcodec/snow.h b/libavcodec/snow.h
index ee0d073..7d847e4 100644
--- a/libavcodec/snow.h
+++ b/libavcodec/snow.h
@@ -23,10 +23,10 @@
#define AVCODEC_SNOW_H
#include "dsputil.h"
+#include "dwt.h"
#define MID_STATE 128
-#define MAX_DECOMPOSITIONS 8
#define MAX_PLANES 4
#define QSHIFT 5
#define QROOT (1<<QSHIFT)
@@ -37,101 +37,6 @@
#define LOG2_OBMC_MAX 8
#define OBMC_MAX (1<<(LOG2_OBMC_MAX))
-#define DWT_97 0
-#define DWT_53 1
-
-/** Used to minimize the amount of memory used in order to optimize cache performance. **/
-struct slice_buffer_s {
- IDWTELEM * * line; ///< For use by idwt and predict_slices.
- IDWTELEM * * data_stack; ///< Used for internal purposes.
- int data_stack_top;
- int line_count;
- int line_width;
- int data_count;
- IDWTELEM * base_buffer; ///< Buffer that this structure is caching.
-};
-
-#define liftS lift
-#if 1
-#define W_AM 3
-#define W_AO 0
-#define W_AS 1
-
-#undef liftS
-#define W_BM 1
-#define W_BO 8
-#define W_BS 4
-
-#define W_CM 1
-#define W_CO 0
-#define W_CS 0
-
-#define W_DM 3
-#define W_DO 4
-#define W_DS 3
-#elif 0
-#define W_AM 55
-#define W_AO 16
-#define W_AS 5
-
-#define W_BM 3
-#define W_BO 32
-#define W_BS 6
-
-#define W_CM 127
-#define W_CO 64
-#define W_CS 7
-
-#define W_DM 7
-#define W_DO 8
-#define W_DS 4
-#elif 0
-#define W_AM 97
-#define W_AO 32
-#define W_AS 6
-
-#define W_BM 63
-#define W_BO 512
-#define W_BS 10
-
-#define W_CM 13
-#define W_CO 8
-#define W_CS 4
-
-#define W_DM 15
-#define W_DO 16
-#define W_DS 5
-
-#else
-
-#define W_AM 203
-#define W_AO 64
-#define W_AS 7
-
-#define W_BM 217
-#define W_BO 2048
-#define W_BS 12
-
-#define W_CM 113
-#define W_CO 64
-#define W_CS 7
-
-#define W_DM 227
-#define W_DO 128
-#define W_DS 9
-#endif
-
-void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2, IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5, int width);
-void ff_snow_horizontal_compose97i(IDWTELEM *b, int width);
-void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h, int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
-
-#if CONFIG_SNOW_ENCODER
-int w53_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
-int w97_32_c(void *v, uint8_t * pix1, uint8_t * pix2, int line_size, int h);
-#endif
-
-void ff_spatial_dwt(int *buffer, int width, int height, int stride, int type, int decomposition_count);
-
/* C bits used by mmx/sse2/altivec */
static av_always_inline void snow_interleave_line_header(int * i, int width, IDWTELEM * low, IDWTELEM * high){
--
1.7.0.2
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