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avfilter/vf_estdif: export distance cost as filter option

This commit is contained in:
Paul B Mahol 2021-11-09 08:58:38 +01:00
parent 45dc668aea
commit dcf83fd59d
2 changed files with 16 additions and 10 deletions
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4
doc/filters.texi
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@ -11711,6 +11711,10 @@ Allowed range is from 1 to 15.
Specify the search radius for best edge matching. Default value is 2.
Allowed range is from 0 to 15.
@item dcost
Specify the distance cost for edge matching. Default value is 0.5.
Allowed range is from 0 to 1.
@item interp
Specify the interpolation used. Default is 4-point interpolation. It accepts one
of the following values:

22
libavfilter/vf_estdif.c
View File

@ -35,6 +35,7 @@ typedef struct ESTDIFContext {
int deint; ///< which frames to deinterlace
int rslope; ///< best edge slope search radius
int redge; ///< best edge match search radius
float dcost; ///< distance cost for edge matching
int interp; ///< type of interpolation
int linesize[4]; ///< bytes of pixel data per line for each plane
int planewidth[4]; ///< width of each plane
@ -42,7 +43,7 @@ typedef struct ESTDIFContext {
int field; ///< which field are we on, 0 or 1
int eof;
int depth;
int half;
int max;
int nb_planes;
int nb_threads;
int64_t pts;
@ -52,7 +53,7 @@ typedef struct ESTDIFContext {
const uint8_t *prev_line, const uint8_t *next_line,
const uint8_t *prev2_line, const uint8_t *next2_line,
const uint8_t *prev3_line, const uint8_t *next3_line,
int x, int width, int rslope, int redge, unsigned half,
int x, int width, int rslope, int redge,
int depth, int *K);
unsigned (*mid_8[3])(const uint8_t *const prev,
@ -92,6 +93,7 @@ static const AVOption estdif_options[] = {
CONST("interlaced", "only deinterlace frames marked as interlaced", 1, "deint"),
{ "rslope", "specify the search radius for edge slope tracing", OFFSET(rslope), AV_OPT_TYPE_INT, {.i64=1}, 1, MAX_R, FLAGS, },
{ "redge", "specify the search radius for best edge matching", OFFSET(redge), AV_OPT_TYPE_INT, {.i64=2}, 0, MAX_R, FLAGS, },
{ "dcost", "specify the distance cost for edge matching", OFFSET(dcost), AV_OPT_TYPE_FLOAT,{.dbl=0.5}, 0, 1, FLAGS, },
{ "interp", "specify the type of interpolation", OFFSET(interp), AV_OPT_TYPE_INT, {.i64=1}, 0, 2, FLAGS, "interp" },
CONST("2p", "two-point interpolation", 0, "interp"),
CONST("4p", "four-point interpolation", 1, "interp"),
@ -239,7 +241,7 @@ static unsigned cost_##ss(const type *const prev, \
COST(uint8_t, 8)
COST(uint16_t, 16)
#define INTERPOLATE(type, atype, max, ss) \
#define INTERPOLATE(type, atype, amax, ss) \
static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \
const uint8_t *const pprev_line, \
const uint8_t *const nnext_line, \
@ -248,7 +250,7 @@ static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \
const uint8_t *const pprev3_line, \
const uint8_t *const nnext3_line, \
int x, int width, int rslope, \
int redge, unsigned h, int depth, \
int redge, int depth, \
int *K) \
{ \
type *dst = (type *)ddst; \
@ -259,10 +261,11 @@ static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \
const type *const next2_line = (const type *const)nnext2_line; \
const type *const next3_line = (const type *const)nnext3_line; \
const int interp = s->interp; \
const int dcost = s->dcost * s->max; \
const int end = width - 1; \
const atype f = redge + 2; \
atype sd[S], sD[S], di = 0; \
atype dmin = max; \
atype dmin = amax; \
int k = *K; \
\
for (int i = -rslope; i <= rslope && abs(k) > rslope; i++) { \
@ -276,7 +279,7 @@ static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \
\
sD[i + rslope] = sum; \
sD[i + rslope] += f * cost_##ss(prev_line, next_line, end, x, i); \
sD[i + rslope] += h * abs(i); \
sD[i + rslope] += dcost * abs(i); \
\
dmin = FFMIN(sD[i + rslope], dmin); \
} \
@ -292,7 +295,7 @@ static void interpolate_##ss(ESTDIFContext *s, uint8_t *ddst, \
\
sd[i + rslope] = sum; \
sd[i + rslope] += f * cost_##ss(prev_line, next_line, end, x, k + i); \
sd[i + rslope] += h * abs(k + i); \
sd[i + rslope] += dcost * abs(k + i); \
\
dmin = FFMIN(sd[i + rslope], dmin); \
} \
@ -332,7 +335,6 @@ static int deinterlace_slice(AVFilterContext *ctx, void *arg,
AVFrame *in = td->in;
const int rslope = s->rslope;
const int redge = s->redge;
const int half = s->half;
const int depth = s->depth;
const int interlaced = in->interlaced_frame;
const int tff = (s->field == (s->parity == -1 ? interlaced ? in->top_field_first : 1 :
@ -411,7 +413,7 @@ static int deinterlace_slice(AVFilterContext *ctx, void *arg,
prev_line, next_line,
prev2_line, next2_line,
prev3_line, next3_line,
x, width, rslope, redge, half, depth, &k);
x, width, rslope, redge, depth, &k);
}
out_line += 2 * dst_linesize;
@ -475,7 +477,7 @@ static int config_input(AVFilterLink *inlink)
s->mid_16[0] = mid2_16;
s->mid_16[1] = mid4_16;
s->mid_16[2] = mid6_16;
s->half = 1 << (s->depth - 1);
s->max = (1 << (s->depth)) - 1;
return 0;
}