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ffmpeg/libavfilter/vf_hqdn3d.c
Michael Niedermayer 7c26761b81 Merge commit 'fe1c1198e670242f3cf9e3e1eef27cff77f3ee23' 
* commit 'fe1c1198e670242f3cf9e3e1eef27cff77f3ee23':
  lavf: use dts difference instead of AVPacket.duration in find_stream_info()
  avf: introduce nobuffer option
  fate: make yadif tests consistent across systems
  vf_hqdn3d: support 9 and 10bit colordepth
  vf_hqdn3d: reduce intermediate precision
  vf_hqdn3d: simplify and optimize
  factor identical ff_inplace_start_frame out of two filters
  vf_hqdn3d: cosmetics
  avprobe/avconv: fix tentative declaration compile errors on MSVS.

Conflicts:
	doc/APIchanges
	ffmpeg.c
	ffprobe.c
	libavformat/avformat.h
	libavformat/options_table.h
	libavformat/utils.c
	libavformat/version.h
	tests/fate/filter.mak
	tests/ref/fate/filter-yadif-mode0
	tests/ref/fate/filter-yadif-mode1

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-07-29 23:04:49 +02:00

330 lines
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C
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/*
* Copyright (c) 2003 Daniel Moreno <comac AT comac DOT darktech DOT org>
* Copyright (c) 2010 Baptiste Coudurier
* Copyright (c) 2012 Loren Merritt
*
* This file is part of FFmpeg, ported from MPlayer.
*
* 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.
*/
/**
* @file
* high quality 3d video denoiser, ported from MPlayer
* libmpcodecs/vf_hqdn3d.c.
*/
#include "libavutil/pixdesc.h"
#include "libavutil/intreadwrite.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"
typedef struct {
int16_t coefs[4][512*16];
uint16_t *line;
uint16_t *frame_prev[3];
int hsub, vsub;
int depth;
} HQDN3DContext;
#define RIGHTSHIFT(a,b) (((a)+(((1<<(b))-1)>>1))>>(b))
#define LOAD(x) ((depth==8 ? src[x] : AV_RN16A(src+(x)*2)) << (16-depth))
#define STORE(x,val) (depth==8 ? dst[x] = RIGHTSHIFT(val, 16-depth)\
: AV_WN16A(dst+(x)*2, RIGHTSHIFT(val, 16-depth)))
static inline uint32_t lowpass(int prev, int cur, int16_t *coef)
{
int d = (prev-cur)>>4;
return cur + coef[d];
}
av_always_inline
static void denoise_temporal(uint8_t *src, uint8_t *dst,
uint16_t *frame_ant,
int w, int h, int sstride, int dstride,
int16_t *temporal, int depth)
{
long x, y;
uint32_t tmp;
temporal += 0x1000;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
frame_ant[x] = tmp = lowpass(frame_ant[x], LOAD(x), temporal);
STORE(x, tmp);
}
src += sstride;
dst += dstride;
frame_ant += w;
}
}
av_always_inline
static void denoise_spatial(uint8_t *src, uint8_t *dst,
uint16_t *line_ant, uint16_t *frame_ant,
int w, int h, int sstride, int dstride,
int16_t *spatial, int16_t *temporal, int depth)
{
long x, y;
uint32_t pixel_ant;
uint32_t tmp;
spatial += 0x1000;
temporal += 0x1000;
/* First line has no top neighbor. Only left one for each tmp and
* last frame */
pixel_ant = LOAD(0);
for (x = 0; x < w; x++) {
line_ant[x] = tmp = pixel_ant = lowpass(pixel_ant, LOAD(x), spatial);
frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal);
STORE(x, tmp);
}
for (y = 1; y < h; y++) {
src += sstride;
dst += dstride;
frame_ant += w;
pixel_ant = LOAD(0);
for (x = 0; x < w-1; x++) {
line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial);
pixel_ant = lowpass(pixel_ant, LOAD(x+1), spatial);
frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal);
STORE(x, tmp);
}
line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial);
frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal);
STORE(x, tmp);
}
}
av_always_inline
static void denoise_depth(uint8_t *src, uint8_t *dst,
uint16_t *line_ant, uint16_t **frame_ant_ptr,
int w, int h, int sstride, int dstride,
int16_t *spatial, int16_t *temporal, int depth)
{
long x, y;
uint16_t *frame_ant = *frame_ant_ptr;
if (!frame_ant) {
uint8_t *frame_src = src;
*frame_ant_ptr = frame_ant = av_malloc(w*h*sizeof(uint16_t));
for (y = 0; y < h; y++, src += sstride, frame_ant += w)
for (x = 0; x < w; x++)
frame_ant[x] = LOAD(x);
src = frame_src;
frame_ant = *frame_ant_ptr;
}
if (spatial[0])
denoise_spatial(src, dst, line_ant, frame_ant,
w, h, sstride, dstride, spatial, temporal, depth);
else
denoise_temporal(src, dst, frame_ant,
w, h, sstride, dstride, temporal, depth);
}
#define denoise(...) \
switch (hqdn3d->depth) {\
case 8: denoise_depth(__VA_ARGS__, 8); break;\
case 9: denoise_depth(__VA_ARGS__, 9); break;\
case 10: denoise_depth(__VA_ARGS__, 10); break;\
}
static void precalc_coefs(int16_t *ct, double dist25)
{
int i;
double gamma, simil, C;
gamma = log(0.25) / log(1.0 - FFMIN(dist25,252.0)/255.0 - 0.00001);
for (i = -255*16; i <= 255*16; i++) {
// lowpass() truncates (not rounds) the diff, so +15/32 for the midpoint of the bin.
double f = (i + 15.0/32.0) / 16.0;
simil = 1.0 - FFABS(f) / 255.0;
C = pow(simil, gamma) * 256.0 * f;
ct[16*256+i] = lrint(C);
}
ct[0] = !!dist25;
}
#define PARAM1_DEFAULT 4.0
#define PARAM2_DEFAULT 3.0
#define PARAM3_DEFAULT 6.0
static int init(AVFilterContext *ctx, const char *args)
{
HQDN3DContext *hqdn3d = ctx->priv;
double lum_spac, lum_tmp, chrom_spac, chrom_tmp;
double param1, param2, param3, param4;
lum_spac = PARAM1_DEFAULT;
chrom_spac = PARAM2_DEFAULT;
lum_tmp = PARAM3_DEFAULT;
chrom_tmp = lum_tmp * chrom_spac / lum_spac;
if (args) {
switch (sscanf(args, "%lf:%lf:%lf:%lf",
&param1, &param2, &param3, &param4)) {
case 1:
lum_spac = param1;
chrom_spac = PARAM2_DEFAULT * param1 / PARAM1_DEFAULT;
lum_tmp = PARAM3_DEFAULT * param1 / PARAM1_DEFAULT;
chrom_tmp = lum_tmp * chrom_spac / lum_spac;
break;
case 2:
lum_spac = param1;
chrom_spac = param2;
lum_tmp = PARAM3_DEFAULT * param1 / PARAM1_DEFAULT;
chrom_tmp = lum_tmp * chrom_spac / lum_spac;
break;
case 3:
lum_spac = param1;
chrom_spac = param2;
lum_tmp = param3;
chrom_tmp = lum_tmp * chrom_spac / lum_spac;
break;
case 4:
lum_spac = param1;
chrom_spac = param2;
lum_tmp = param3;
chrom_tmp = param4;
break;
}
}
av_log(ctx, AV_LOG_VERBOSE, "ls:%lf cs:%lf lt:%lf ct:%lf\n",
lum_spac, chrom_spac, lum_tmp, chrom_tmp);
if (lum_spac < 0 || chrom_spac < 0 || isnan(chrom_tmp)) {
av_log(ctx, AV_LOG_ERROR,
"Invalid negative value for luma or chroma spatial strength, "
"or resulting value for chroma temporal strength is nan.\n");
return AVERROR(EINVAL);
}
precalc_coefs(hqdn3d->coefs[0], lum_spac);
precalc_coefs(hqdn3d->coefs[1], lum_tmp);
precalc_coefs(hqdn3d->coefs[2], chrom_spac);
precalc_coefs(hqdn3d->coefs[3], chrom_tmp);
return 0;
}
static void uninit(AVFilterContext *ctx)
{
HQDN3DContext *hqdn3d = ctx->priv;
av_freep(&hqdn3d->line);
av_freep(&hqdn3d->frame_prev[0]);
av_freep(&hqdn3d->frame_prev[1]);
av_freep(&hqdn3d->frame_prev[2]);
}
static int query_formats(AVFilterContext *ctx)
{
static const enum PixelFormat pix_fmts[] = {
PIX_FMT_YUV420P,
PIX_FMT_YUV422P,
PIX_FMT_YUV444P,
PIX_FMT_YUV410P,
PIX_FMT_YUV411P,
PIX_FMT_YUV440P,
PIX_FMT_YUVJ420P,
PIX_FMT_YUVJ422P,
PIX_FMT_YUVJ444P,
PIX_FMT_YUVJ440P,
AV_NE( PIX_FMT_YUV420P9BE, PIX_FMT_YUV420P9LE ),
AV_NE( PIX_FMT_YUV422P9BE, PIX_FMT_YUV422P9LE ),
AV_NE( PIX_FMT_YUV444P9BE, PIX_FMT_YUV444P9LE ),
AV_NE( PIX_FMT_YUV420P10BE, PIX_FMT_YUV420P10LE ),
AV_NE( PIX_FMT_YUV422P10BE, PIX_FMT_YUV422P10LE ),
AV_NE( PIX_FMT_YUV444P10BE, PIX_FMT_YUV444P10LE ),
PIX_FMT_NONE
};
ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
return 0;
}
static int config_input(AVFilterLink *inlink)
{
HQDN3DContext *hqdn3d = inlink->dst->priv;
hqdn3d->hsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_w;
hqdn3d->vsub = av_pix_fmt_descriptors[inlink->format].log2_chroma_h;
hqdn3d->depth = av_pix_fmt_descriptors[inlink->format].comp[0].depth_minus1+1;
hqdn3d->line = av_malloc(inlink->w * sizeof(*hqdn3d->line));
if (!hqdn3d->line)
return AVERROR(ENOMEM);
return 0;
}
static int null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
{
return 0;
}
static int end_frame(AVFilterLink *inlink)
{
HQDN3DContext *hqdn3d = inlink->dst->priv;
AVFilterLink *outlink = inlink->dst->outputs[0];
AVFilterBufferRef *inpic = inlink ->cur_buf;
AVFilterBufferRef *outpic = outlink->out_buf;
int ret, c;
for (c = 0; c < 3; c++) {
denoise(inpic->data[c], outpic->data[c],
hqdn3d->line, &hqdn3d->frame_prev[c],
inpic->video->w >> (!!c * hqdn3d->hsub),
inpic->video->h >> (!!c * hqdn3d->vsub),
inpic->linesize[c], outpic->linesize[c],
hqdn3d->coefs[c?2:0], hqdn3d->coefs[c?3:1]);
}
if ((ret = ff_draw_slice(outlink, 0, inpic->video->h, 1)) < 0 ||
(ret = ff_end_frame(outlink)) < 0)
return ret;
return 0;
}
AVFilter avfilter_vf_hqdn3d = {
.name = "hqdn3d",
.description = NULL_IF_CONFIG_SMALL("Apply a High Quality 3D Denoiser."),
.priv_size = sizeof(HQDN3DContext),
.init = init,
.uninit = uninit,
.query_formats = query_formats,
.inputs = (const AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.start_frame = ff_inplace_start_frame,
.draw_slice = null_draw_slice,
.config_props = config_input,
.end_frame = end_frame },
{ .name = NULL}},
.outputs = (const AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO },
{ .name = NULL}},
};
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