mirror of
https://git.videolan.org/git/ffmpeg.git
synced 2024-09-09 01:07:01 +02:00
![Baptiste Coudurier](/assets/img/avatar_default.png)
Patch by Baptiste with some fixes by me. Originally committed as revision 25880 to svn://svn.ffmpeg.org/ffmpeg/trunk
346 lines
12 KiB
C
346 lines
12 KiB
C
/*
|
|
* Copyright (c) 2003 Daniel Moreno <comac AT comac DOT darktech DOT org>
|
|
* Copyright (c) 2010 Baptiste Coudurier
|
|
*
|
|
* 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 "avfilter.h"
|
|
|
|
typedef struct {
|
|
int Coefs[4][512*16];
|
|
unsigned int *Line;
|
|
unsigned short *Frame[3];
|
|
int hsub, vsub;
|
|
} HQDN3DContext;
|
|
|
|
static inline unsigned int LowPassMul(unsigned int PrevMul, unsigned int CurrMul, int *Coef)
|
|
{
|
|
// int dMul= (PrevMul&0xFFFFFF)-(CurrMul&0xFFFFFF);
|
|
int dMul= PrevMul-CurrMul;
|
|
unsigned int d=((dMul+0x10007FF)>>12);
|
|
return CurrMul + Coef[d];
|
|
}
|
|
|
|
static void deNoiseTemporal(unsigned char *FrameSrc,
|
|
unsigned char *FrameDest,
|
|
unsigned short *FrameAnt,
|
|
int W, int H, int sStride, int dStride,
|
|
int *Temporal)
|
|
{
|
|
long X, Y;
|
|
unsigned int PixelDst;
|
|
|
|
for (Y = 0; Y < H; Y++) {
|
|
for (X = 0; X < W; X++) {
|
|
PixelDst = LowPassMul(FrameAnt[X]<<8, FrameSrc[X]<<16, Temporal);
|
|
FrameAnt[X] = ((PixelDst+0x1000007F)>>8);
|
|
FrameDest[X]= ((PixelDst+0x10007FFF)>>16);
|
|
}
|
|
FrameSrc += sStride;
|
|
FrameDest += dStride;
|
|
FrameAnt += W;
|
|
}
|
|
}
|
|
|
|
static void deNoiseSpacial(unsigned char *Frame,
|
|
unsigned char *FrameDest,
|
|
unsigned int *LineAnt,
|
|
int W, int H, int sStride, int dStride,
|
|
int *Horizontal, int *Vertical)
|
|
{
|
|
long X, Y;
|
|
long sLineOffs = 0, dLineOffs = 0;
|
|
unsigned int PixelAnt;
|
|
unsigned int PixelDst;
|
|
|
|
/* First pixel has no left nor top neighbor. */
|
|
PixelDst = LineAnt[0] = PixelAnt = Frame[0]<<16;
|
|
FrameDest[0]= ((PixelDst+0x10007FFF)>>16);
|
|
|
|
/* First line has no top neighbor, only left. */
|
|
for (X = 1; X < W; X++) {
|
|
PixelDst = LineAnt[X] = LowPassMul(PixelAnt, Frame[X]<<16, Horizontal);
|
|
FrameDest[X]= ((PixelDst+0x10007FFF)>>16);
|
|
}
|
|
|
|
for (Y = 1; Y < H; Y++) {
|
|
unsigned int PixelAnt;
|
|
sLineOffs += sStride, dLineOffs += dStride;
|
|
/* First pixel on each line doesn't have previous pixel */
|
|
PixelAnt = Frame[sLineOffs]<<16;
|
|
PixelDst = LineAnt[0] = LowPassMul(LineAnt[0], PixelAnt, Vertical);
|
|
FrameDest[dLineOffs]= ((PixelDst+0x10007FFF)>>16);
|
|
|
|
for (X = 1; X < W; X++) {
|
|
unsigned int PixelDst;
|
|
/* The rest are normal */
|
|
PixelAnt = LowPassMul(PixelAnt, Frame[sLineOffs+X]<<16, Horizontal);
|
|
PixelDst = LineAnt[X] = LowPassMul(LineAnt[X], PixelAnt, Vertical);
|
|
FrameDest[dLineOffs+X]= ((PixelDst+0x10007FFF)>>16);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void deNoise(unsigned char *Frame,
|
|
unsigned char *FrameDest,
|
|
unsigned int *LineAnt,
|
|
unsigned short **FrameAntPtr,
|
|
int W, int H, int sStride, int dStride,
|
|
int *Horizontal, int *Vertical, int *Temporal)
|
|
{
|
|
long X, Y;
|
|
long sLineOffs = 0, dLineOffs = 0;
|
|
unsigned int PixelAnt;
|
|
unsigned int PixelDst;
|
|
unsigned short* FrameAnt=(*FrameAntPtr);
|
|
|
|
if (!FrameAnt) {
|
|
(*FrameAntPtr) = FrameAnt = av_malloc(W*H*sizeof(unsigned short));
|
|
for (Y = 0; Y < H; Y++) {
|
|
unsigned short* dst=&FrameAnt[Y*W];
|
|
unsigned char* src=Frame+Y*sStride;
|
|
for (X = 0; X < W; X++) dst[X]=src[X]<<8;
|
|
}
|
|
}
|
|
|
|
if (!Horizontal[0] && !Vertical[0]) {
|
|
deNoiseTemporal(Frame, FrameDest, FrameAnt,
|
|
W, H, sStride, dStride, Temporal);
|
|
return;
|
|
}
|
|
if (!Temporal[0]) {
|
|
deNoiseSpacial(Frame, FrameDest, LineAnt,
|
|
W, H, sStride, dStride, Horizontal, Vertical);
|
|
return;
|
|
}
|
|
|
|
/* First pixel has no left nor top neighbor. Only previous frame */
|
|
LineAnt[0] = PixelAnt = Frame[0]<<16;
|
|
PixelDst = LowPassMul(FrameAnt[0]<<8, PixelAnt, Temporal);
|
|
FrameAnt[0] = ((PixelDst+0x1000007F)>>8);
|
|
FrameDest[0]= ((PixelDst+0x10007FFF)>>16);
|
|
|
|
/* First line has no top neighbor. Only left one for each pixel and
|
|
* last frame */
|
|
for (X = 1; X < W; X++) {
|
|
LineAnt[X] = PixelAnt = LowPassMul(PixelAnt, Frame[X]<<16, Horizontal);
|
|
PixelDst = LowPassMul(FrameAnt[X]<<8, PixelAnt, Temporal);
|
|
FrameAnt[X] = ((PixelDst+0x1000007F)>>8);
|
|
FrameDest[X]= ((PixelDst+0x10007FFF)>>16);
|
|
}
|
|
|
|
for (Y = 1; Y < H; Y++) {
|
|
unsigned int PixelAnt;
|
|
unsigned short* LinePrev=&FrameAnt[Y*W];
|
|
sLineOffs += sStride, dLineOffs += dStride;
|
|
/* First pixel on each line doesn't have previous pixel */
|
|
PixelAnt = Frame[sLineOffs]<<16;
|
|
LineAnt[0] = LowPassMul(LineAnt[0], PixelAnt, Vertical);
|
|
PixelDst = LowPassMul(LinePrev[0]<<8, LineAnt[0], Temporal);
|
|
LinePrev[0] = ((PixelDst+0x1000007F)>>8);
|
|
FrameDest[dLineOffs]= ((PixelDst+0x10007FFF)>>16);
|
|
|
|
for (X = 1; X < W; X++) {
|
|
unsigned int PixelDst;
|
|
/* The rest are normal */
|
|
PixelAnt = LowPassMul(PixelAnt, Frame[sLineOffs+X]<<16, Horizontal);
|
|
LineAnt[X] = LowPassMul(LineAnt[X], PixelAnt, Vertical);
|
|
PixelDst = LowPassMul(LinePrev[X]<<8, LineAnt[X], Temporal);
|
|
LinePrev[X] = ((PixelDst+0x1000007F)>>8);
|
|
FrameDest[dLineOffs+X]= ((PixelDst+0x10007FFF)>>16);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void PrecalcCoefs(int *Ct, double Dist25)
|
|
{
|
|
int i;
|
|
double Gamma, Simil, C;
|
|
|
|
Gamma = log(0.25) / log(1.0 - Dist25/255.0 - 0.00001);
|
|
|
|
for (i = -255*16; i <= 255*16; i++) {
|
|
Simil = 1.0 - FFABS(i) / (16*255.0);
|
|
C = pow(Simil, Gamma) * 65536.0 * i / 16.0;
|
|
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, void *opaque)
|
|
{
|
|
HQDN3DContext *hqdn3d = ctx->priv;
|
|
double LumSpac, LumTmp, ChromSpac, ChromTmp;
|
|
double Param1, Param2, Param3, Param4;
|
|
|
|
LumSpac = PARAM1_DEFAULT;
|
|
ChromSpac = PARAM2_DEFAULT;
|
|
LumTmp = PARAM3_DEFAULT;
|
|
ChromTmp = LumTmp * ChromSpac / LumSpac;
|
|
|
|
if (args) {
|
|
switch (sscanf(args, "%lf:%lf:%lf:%lf",
|
|
&Param1, &Param2, &Param3, &Param4)) {
|
|
case 1:
|
|
LumSpac = Param1;
|
|
ChromSpac = PARAM2_DEFAULT * Param1 / PARAM1_DEFAULT;
|
|
LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT;
|
|
ChromTmp = LumTmp * ChromSpac / LumSpac;
|
|
break;
|
|
case 2:
|
|
LumSpac = Param1;
|
|
ChromSpac = Param2;
|
|
LumTmp = PARAM3_DEFAULT * Param1 / PARAM1_DEFAULT;
|
|
ChromTmp = LumTmp * ChromSpac / LumSpac;
|
|
break;
|
|
case 3:
|
|
LumSpac = Param1;
|
|
ChromSpac = Param2;
|
|
LumTmp = Param3;
|
|
ChromTmp = LumTmp * ChromSpac / LumSpac;
|
|
break;
|
|
case 4:
|
|
LumSpac = Param1;
|
|
ChromSpac = Param2;
|
|
LumTmp = Param3;
|
|
ChromTmp = Param4;
|
|
break;
|
|
}
|
|
}
|
|
|
|
av_log(ctx, AV_LOG_INFO, "ls:%lf cs:%lf lt:%lf ct:%lf\n",
|
|
LumSpac, ChromSpac, LumTmp, ChromTmp);
|
|
if (LumSpac < 0 || ChromSpac < 0 || isnan(ChromTmp)) {
|
|
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);
|
|
}
|
|
|
|
PrecalcCoefs(hqdn3d->Coefs[0], LumSpac);
|
|
PrecalcCoefs(hqdn3d->Coefs[1], LumTmp);
|
|
PrecalcCoefs(hqdn3d->Coefs[2], ChromSpac);
|
|
PrecalcCoefs(hqdn3d->Coefs[3], ChromTmp);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void uninit(AVFilterContext *ctx)
|
|
{
|
|
HQDN3DContext *hqdn3d = ctx->priv;
|
|
|
|
av_freep(&hqdn3d->Line);
|
|
av_freep(&hqdn3d->Frame[0]);
|
|
av_freep(&hqdn3d->Frame[1]);
|
|
av_freep(&hqdn3d->Frame[2]);
|
|
}
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
static const enum PixelFormat pix_fmts[] = {
|
|
PIX_FMT_YUV420P, PIX_FMT_YUV422P, PIX_FMT_YUV411P, PIX_FMT_NONE
|
|
};
|
|
|
|
avfilter_set_common_formats(ctx, avfilter_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->Line = av_malloc(inlink->w * sizeof(*hqdn3d->Line));
|
|
if (!hqdn3d->Line)
|
|
return AVERROR(ENOMEM);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir) { }
|
|
|
|
static void 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 cw = inpic->video->w >> hqdn3d->hsub;
|
|
int ch = inpic->video->h >> hqdn3d->vsub;
|
|
|
|
deNoise(inpic->data[0], outpic->data[0],
|
|
hqdn3d->Line, &hqdn3d->Frame[0], inpic->video->w, inpic->video->h,
|
|
inpic->linesize[0], outpic->linesize[0],
|
|
hqdn3d->Coefs[0],
|
|
hqdn3d->Coefs[0],
|
|
hqdn3d->Coefs[1]);
|
|
deNoise(inpic->data[1], outpic->data[1],
|
|
hqdn3d->Line, &hqdn3d->Frame[1], cw, ch,
|
|
inpic->linesize[1], outpic->linesize[1],
|
|
hqdn3d->Coefs[2],
|
|
hqdn3d->Coefs[2],
|
|
hqdn3d->Coefs[3]);
|
|
deNoise(inpic->data[2], outpic->data[2],
|
|
hqdn3d->Line, &hqdn3d->Frame[2], cw, ch,
|
|
inpic->linesize[2], outpic->linesize[2],
|
|
hqdn3d->Coefs[2],
|
|
hqdn3d->Coefs[2],
|
|
hqdn3d->Coefs[3]);
|
|
|
|
avfilter_draw_slice(outlink, 0, inpic->video->h, 1);
|
|
avfilter_end_frame(outlink);
|
|
avfilter_unref_buffer(inpic);
|
|
avfilter_unref_buffer(outpic);
|
|
}
|
|
|
|
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 = (AVFilterPad[]) {{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.draw_slice = null_draw_slice,
|
|
.config_props = config_input,
|
|
.end_frame = end_frame },
|
|
{ .name = NULL}},
|
|
|
|
.outputs = (AVFilterPad[]) {{ .name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO },
|
|
{ .name = NULL}},
|
|
};
|