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ffmpeg.wasm-core
Commit 9d14ffbc authored by Luca Barbato's avatar Luca Barbato
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Cosmetics 

Originally committed as revision 10278 to svn://svn.ffmpeg.org/ffmpeg/trunk
parent c0fee8c9
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Showing with 56 additions and 14 deletions
libavcodec/snow.c
View file @ 9d14ffbc
......@@ -716,7 +716,11 @@ 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){
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);
......@@ -730,15 +734,25 @@ static av_always_inline void lift(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int
}
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);
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);
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){
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);
......@@ -752,23 +766,36 @@ static av_always_inline void inv_lift(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *re
}
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);
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);
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){
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)))
#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;
......@@ -776,21 +803,32 @@ static av_always_inline void liftS(DWTELEM *dst, DWTELEM *src, DWTELEM *ref, int
}
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);
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);
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){
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)))
#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;
......@@ -798,11 +836,15 @@ static av_always_inline void inv_liftS(IDWTELEM *dst, IDWTELEM *src, IDWTELEM *r
}
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);
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);
dst[w*dst_step] =
LIFTS(src[w*src_step], mul*2*ref[w*ref_step]+add, inverse);
}
}
#endif
......
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