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Code Issues Releases Activity

avcodec/me_cmp: add median SAD compare function

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Stanislav Dolganov 2016-08-18 14:40:09 +03:00 committed by Michael Niedermayer
parent dcfd24b10c
commit 4edd74bd7c
6 changed files with 98 additions and 17 deletions
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1
libavcodec/avcodec.h
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@ -2108,6 +2108,7 @@ typedef struct AVCodecContext {
#define FF_CMP_W97 12
#define FF_CMP_DCTMAX 13
#define FF_CMP_DCT264 14
#define FF_CMP_MEDIAN_SAD 15
#define FF_CMP_CHROMA 256
/**

76
libavcodec/me_cmp.c
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@ -139,6 +139,45 @@ static inline int pix_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
return s;
}
static inline int pix_median_abs16_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
int s = 0, i, j;
#define V(x) (pix1[x] - pix2[x])
s += abs(V(0));
s += abs(V(1) - V(0));
s += abs(V(2) - V(1));
s += abs(V(3) - V(2));
s += abs(V(4) - V(3));
s += abs(V(5) - V(4));
s += abs(V(6) - V(5));
s += abs(V(7) - V(6));
s += abs(V(8) - V(7));
s += abs(V(9) - V(8));
s += abs(V(10) - V(9));
s += abs(V(11) - V(10));
s += abs(V(12) - V(11));
s += abs(V(13) - V(12));
s += abs(V(14) - V(13));
s += abs(V(15) - V(14));
pix1 += stride;
pix2 += stride;
for (i = 1; i < h; i++) {
s += abs(V(0) - V(-stride));
for (j = 1; j < 16; j++)
s += abs(V(j) - mid_pred(V(j-stride), V(j-1), V(j-stride) + V(j-1) - V(j-stride-1)));
pix1 += stride;
pix2 += stride;
}
#undef V
return s;
}
static int pix_abs16_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
@ -247,6 +286,37 @@ static inline int pix_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
return s;
}
static inline int pix_median_abs8_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
int s = 0, i, j;
#define V(x) (pix1[x] - pix2[x])
s += abs(V(0));
s += abs(V(1) - V(0));
s += abs(V(2) - V(1));
s += abs(V(3) - V(2));
s += abs(V(4) - V(3));
s += abs(V(5) - V(4));
s += abs(V(6) - V(5));
s += abs(V(7) - V(6));
pix1 += stride;
pix2 += stride;
for (i = 1; i < h; i++) {
s += abs(V(0) - V(-stride));
for (j = 1; j < 8; j++)
s += abs(V(j) - mid_pred(V(j-stride), V(j-1), V(j-stride) + V(j-1) - V(j-stride-1)));
pix1 += stride;
pix2 += stride;
}
#undef V
return s;
}
static int pix_abs8_x2_c(MpegEncContext *v, uint8_t *pix1, uint8_t *pix2,
ptrdiff_t stride, int h)
{
@ -378,6 +448,9 @@ void ff_set_cmp(MECmpContext *c, me_cmp_func *cmp, int type)
case FF_CMP_SAD:
cmp[i] = c->sad[i];
break;
case FF_CMP_MEDIAN_SAD:
cmp[i] = c->median_sad[i];
break;
case FF_CMP_SATD:
cmp[i] = c->hadamard8_diff[i];
break;
@ -993,4 +1066,7 @@ av_cold void ff_me_cmp_init(MECmpContext *c, AVCodecContext *avctx)
ff_me_cmp_init_x86(c, avctx);
if (ARCH_MIPS)
ff_me_cmp_init_mips(c, avctx);
c->median_sad[0] = pix_median_abs16_c;
c->median_sad[1] = pix_median_abs8_c;
}

1
libavcodec/me_cmp.h
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@ -76,6 +76,7 @@ typedef struct MECmpContext {
me_cmp_func frame_skip_cmp[6]; // only width 8 used
me_cmp_func pix_abs[2][4];
me_cmp_func median_sad[2];
} MECmpContext;
void ff_me_cmp_init_static(void);

1
libavcodec/motion_est.c
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@ -897,6 +897,7 @@ static inline int get_penalty_factor(int lambda, int lambda2, int type){
case FF_CMP_NSSE:
return lambda2>>FF_LAMBDA_SHIFT;
case FF_CMP_BIT:
case FF_CMP_MEDIAN_SAD:
return 1;
}
}

3
libavcodec/mpegvideo.h
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@ -594,7 +594,8 @@ enum rc_strategy {
{ "nsse", "Noise preserving sum of squared differences", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_NSSE }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
{ "dct264", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCT264 }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
{ "dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
{ "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
{ "chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }, \
{ "msad", "Sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, FF_MPV_OPT_FLAGS, "cmp_func" }
#ifndef FF_MPV_OFFSET
#define FF_MPV_OFFSET(x) offsetof(MpegEncContext, x)

1
libavcodec/options_table.h
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@ -312,6 +312,7 @@ static const AVOption avcodec_options[] = {
#endif
{"dctmax", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_DCTMAX }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"chroma", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_CHROMA }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"msad", "sum of absolute differences, median predicted", 0, AV_OPT_TYPE_CONST, {.i64 = FF_CMP_MEDIAN_SAD }, INT_MIN, INT_MAX, V|E, "cmp_func"},
{"pre_dia_size", "diamond type & size for motion estimation pre-pass", OFFSET(pre_dia_size), AV_OPT_TYPE_INT, {.i64 = DEFAULT }, INT_MIN, INT_MAX, V|E},
{"subq", "sub-pel motion estimation quality", OFFSET(me_subpel_quality), AV_OPT_TYPE_INT, {.i64 = 8 }, INT_MIN, INT_MAX, V|E},
#if FF_API_AFD