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avfilter/vf_phase: add >8 bit support

tags/n4.3
Paul B Mahol 5 years ago
parent
732d77dc50
commit
314a783bb8
2 changed files with 246 additions and 148 deletions
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  1. +183
    -0
      libavfilter/phase_template.c
  2. +63
    -148
      libavfilter/vf_phase.c

+ 183
- 0
libavfilter/phase_template.c View File

@@ -0,0 +1,183 @@
/*
* Copyright (c) 2004 Ville Saari
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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/avassert.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

#undef pixel
#undef accumulator
#if DEPTH == 8
#define pixel uint8_t
#define accumulator int
#else
#define pixel uint16_t
#define accumulator int64_t
#endif

#define fn3(a,b) a##_##b
#define fn2(a,b) fn3(a,b)
#define fn(a) fn2(a, DEPTH)

/*
* This macro interpolates the value of both fields at a point halfway
* between lines and takes the squared difference. In field resolution
* the point is a quarter pixel below a line in one field and a quarter
* pixel above a line in other.
*
* (The result is actually multiplied by 25)
*/
#define DIFF(a, as, b, bs) ((t) = ((*(a) - (b)[bs]) << 2) + (a)[(as) << 1] - (b)[-(bs)], (t) * (t))

/*
* Find which field combination has the smallest average squared difference
* between the fields.
*/
static enum PhaseMode fn(analyze_plane)(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new)
{
double bdiff, tdiff, pdiff;

if (mode == AUTO) {
mode = new->interlaced_frame ? new->top_field_first ?
TOP_FIRST : BOTTOM_FIRST : PROGRESSIVE;
} else if (mode == AUTO_ANALYZE) {
mode = new->interlaced_frame ? new->top_field_first ?
TOP_FIRST_ANALYZE : BOTTOM_FIRST_ANALYZE : FULL_ANALYZE;
}

if (mode <= BOTTOM_FIRST) {
bdiff = pdiff = tdiff = 65536.0;
} else {
const double factor = 1. / (25. * (1 << (DEPTH - 8)) * (1 << (DEPTH - 8)));
const int ns = new->linesize[0] / sizeof(pixel);
const int os = old->linesize[0] / sizeof(pixel);
const pixel *nptr = (pixel *)new->data[0];
const pixel *optr = (pixel *)old->data[0];
const int h = new->height;
const int w = new->width;
accumulator bdif, tdif, pdif;
double scale;

int top = 0, t;
const pixel *rend, *end = nptr + (h - 2) * ns;

bdiff = pdiff = tdiff = 0.0;

nptr += ns;
optr += os;
while (nptr < end) {
pdif = tdif = bdif = 0;

switch (mode) {
case TOP_FIRST_ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
tdif += DIFF(nptr, ns, optr, os);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
tdif += DIFF(optr, os, nptr, ns);
}
}
break;
case BOTTOM_FIRST_ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
bdif += DIFF(optr, os, nptr, ns);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
bdif += DIFF(nptr, ns, optr, os);
}
}
break;
case ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
tdif += DIFF(nptr, ns, optr, os);
bdif += DIFF(optr, os, nptr, ns);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
bdif += DIFF(nptr, ns, optr, os);
tdif += DIFF(optr, os, nptr, ns);
}
}
break;
case FULL_ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
tdif += DIFF(nptr, ns, optr, os);
bdif += DIFF(optr, os, nptr, ns);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
bdif += DIFF(nptr, ns, optr, os);
tdif += DIFF(optr, os, nptr, ns);
}
}
break;
default:
av_assert0(0);
}

pdiff += (double)pdif;
tdiff += (double)tdif;
bdiff += (double)bdif;
nptr += ns - w;
optr += os - w;
top ^= 1;
}

scale = 1.0 / (w * (h - 3)) * factor;
pdiff *= scale;
tdiff *= scale;
bdiff *= scale;

if (mode == TOP_FIRST_ANALYZE) {
bdiff = 65536.0;
} else if (mode == BOTTOM_FIRST_ANALYZE) {
tdiff = 65536.0;
} else if (mode == ANALYZE) {
pdiff = 65536.0;
}

if (bdiff < pdiff && bdiff < tdiff) {
mode = BOTTOM_FIRST;
} else if (tdiff < pdiff && tdiff < bdiff) {
mode = TOP_FIRST;
} else {
mode = PROGRESSIVE;
}
}

av_log(ctx, AV_LOG_DEBUG, "mode=%c tdiff=%f bdiff=%f pdiff=%f\n",
mode == BOTTOM_FIRST ? 'b' : mode == TOP_FIRST ? 't' : 'p',
tdiff, bdiff, pdiff);
return mode;
}

+ 63
- 148
libavfilter/vf_phase.c View File

@@ -39,6 +39,29 @@ enum PhaseMode {
AUTO_ANALYZE
};

#define DEPTH 8
#include "phase_template.c"

#undef DEPTH
#define DEPTH 9
#include "phase_template.c"

#undef DEPTH
#define DEPTH 10
#include "phase_template.c"

#undef DEPTH
#define DEPTH 12
#include "phase_template.c"

#undef DEPTH
#define DEPTH 14
#include "phase_template.c"

#undef DEPTH
#define DEPTH 16
#include "phase_template.c"

typedef struct PhaseContext {
const AVClass *class;
int mode; ///<PhaseMode
@@ -46,6 +69,8 @@ typedef struct PhaseContext {
int nb_planes;
int planeheight[4];
int linesize[4];

enum PhaseMode (*analyze_plane)(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new);
} PhaseContext;

#define OFFSET(x) offsetof(PhaseContext, x)
@@ -71,10 +96,33 @@ AVFILTER_DEFINE_CLASS(phase);
static int query_formats(AVFilterContext *ctx)
{
static const enum AVPixelFormat pix_fmts[] = {
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P,AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_GRAY9,
AV_PIX_FMT_GRAY10,
AV_PIX_FMT_GRAY12,
AV_PIX_FMT_GRAY14,
AV_PIX_FMT_GRAY16,
AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_YUVJ411P,
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV440P10,
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
AV_PIX_FMT_YUV440P12,
AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
AV_PIX_FMT_NONE
};

AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
@@ -89,6 +137,16 @@ static int config_input(AVFilterLink *inlink)
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
int ret;

switch (desc->comp[0].depth) {
case 8: s->analyze_plane = analyze_plane_8; break;
case 9: s->analyze_plane = analyze_plane_9; break;
case 10: s->analyze_plane = analyze_plane_10; break;
case 12: s->analyze_plane = analyze_plane_12; break;
case 14: s->analyze_plane = analyze_plane_14; break;
case 16: s->analyze_plane = analyze_plane_16; break;
default: av_assert0(0);
};

if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
return ret;

@@ -100,149 +158,6 @@ static int config_input(AVFilterLink *inlink)
return 0;
}

/*
* This macro interpolates the value of both fields at a point halfway
* between lines and takes the squared difference. In field resolution
* the point is a quarter pixel below a line in one field and a quarter
* pixel above a line in other.
*
* (The result is actually multiplied by 25)
*/
#define DIFF(a, as, b, bs) ((t) = ((*(a) - (b)[bs]) << 2) + (a)[(as) << 1] - (b)[-(bs)], (t) * (t))

/*
* Find which field combination has the smallest average squared difference
* between the fields.
*/
static enum PhaseMode analyze_plane(void *ctx, enum PhaseMode mode, AVFrame *old, AVFrame *new)
{
double bdiff, tdiff, pdiff;

if (mode == AUTO) {
mode = new->interlaced_frame ? new->top_field_first ?
TOP_FIRST : BOTTOM_FIRST : PROGRESSIVE;
} else if (mode == AUTO_ANALYZE) {
mode = new->interlaced_frame ? new->top_field_first ?
TOP_FIRST_ANALYZE : BOTTOM_FIRST_ANALYZE : FULL_ANALYZE;
}

if (mode <= BOTTOM_FIRST) {
bdiff = pdiff = tdiff = 65536.0;
} else {
const int ns = new->linesize[0];
const int os = old->linesize[0];
const uint8_t *nptr = new->data[0];
const uint8_t *optr = old->data[0];
const int h = new->height;
const int w = new->width;
int bdif, tdif, pdif;
double scale;

int top = 0, t;
const uint8_t *rend, *end = nptr + (h - 2) * ns;

bdiff = pdiff = tdiff = 0.0;

nptr += ns;
optr += os;
while (nptr < end) {
pdif = tdif = bdif = 0;

switch (mode) {
case TOP_FIRST_ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
tdif += DIFF(nptr, ns, optr, os);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
tdif += DIFF(optr, os, nptr, ns);
}
}
break;
case BOTTOM_FIRST_ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
bdif += DIFF(optr, os, nptr, ns);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
bdif += DIFF(nptr, ns, optr, os);
}
}
break;
case ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
tdif += DIFF(nptr, ns, optr, os);
bdif += DIFF(optr, os, nptr, ns);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
bdif += DIFF(nptr, ns, optr, os);
tdif += DIFF(optr, os, nptr, ns);
}
}
break;
case FULL_ANALYZE:
if (top) {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
tdif += DIFF(nptr, ns, optr, os);
bdif += DIFF(optr, os, nptr, ns);
}
} else {
for (rend = nptr + w; nptr < rend; nptr++, optr++) {
pdif += DIFF(nptr, ns, nptr, ns);
bdif += DIFF(nptr, ns, optr, os);
tdif += DIFF(optr, os, nptr, ns);
}
}
break;
default:
av_assert0(0);
}

pdiff += (double)pdif;
tdiff += (double)tdif;
bdiff += (double)bdif;
nptr += ns - w;
optr += os - w;
top ^= 1;
}

scale = 1.0 / (w * (h - 3)) / 25.0;
pdiff *= scale;
tdiff *= scale;
bdiff *= scale;

if (mode == TOP_FIRST_ANALYZE) {
bdiff = 65536.0;
} else if (mode == BOTTOM_FIRST_ANALYZE) {
tdiff = 65536.0;
} else if (mode == ANALYZE) {
pdiff = 65536.0;
}

if (bdiff < pdiff && bdiff < tdiff) {
mode = BOTTOM_FIRST;
} else if (tdiff < pdiff && tdiff < bdiff) {
mode = TOP_FIRST;
} else {
mode = PROGRESSIVE;
}
}

av_log(ctx, AV_LOG_DEBUG, "mode=%c tdiff=%f bdiff=%f pdiff=%f\n",
mode == BOTTOM_FIRST ? 'b' : mode == TOP_FIRST ? 't' : 'p',
tdiff, bdiff, pdiff);
return mode;
}

static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
@@ -272,7 +187,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in)
s->frame = in;
mode = PROGRESSIVE;
} else {
mode = analyze_plane(ctx, s->mode, s->frame, in);
mode = s->analyze_plane(ctx, s->mode, s->frame, in);
}

for (plane = 0; plane < s->nb_planes; plane++) {


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