2017-03-31 5:06 GMT+08:00 Betty Wu <lumoso...@gmail.com>:
> A new filter ANSNR is added. libavfilter/Makefile is changed.
> Run 'ffmpeg -i input1 -i input2 -lavfi ansnr -f null -' to get an overall
> score while per-frame value is stored but not printed.
> This implementation is for constructing the vmaf filter later since ANSNR
> is one of individual tools used in vmaf.
>
> Signed-off-by: Betty Wu <lumoso...@gmail.com>
> ---
> libavfilter/Makefile | 1 +
> libavfilter/allfilters.c | 1 +
> libavfilter/vf_ansnr.c | 727 ++++++++++++++++++++++++++++++
> +++++++++++++++++
> 3 files changed, 729 insertions(+)
> create mode 100644 libavfilter/vf_ansnr.c
>
need add options describes into document doc/filters.texi
>
> diff --git a/libavfilter/Makefile b/libavfilter/Makefile
> index 9c15ed62d2..5416e0f34f 100644
> --- a/libavfilter/Makefile
> +++ b/libavfilter/Makefile
> @@ -123,6 +123,7 @@ OBJS-$(CONFIG_ANULLSINK_FILTER) +=
> asink_anullsink.o
> # video filters
> OBJS-$(CONFIG_ALPHAEXTRACT_FILTER) += vf_extractplanes.o
> OBJS-$(CONFIG_ALPHAMERGE_FILTER) += vf_alphamerge.o
> +OBJS-$(CONFIG_ANSNR_FILTER) += vf_ansnr.o dualinput.o
> framesync.o
> OBJS-$(CONFIG_ASS_FILTER) += vf_subtitles.o
> OBJS-$(CONFIG_ATADENOISE_FILTER) += vf_atadenoise.o
> OBJS-$(CONFIG_AVGBLUR_FILTER) += vf_avgblur.o
> diff --git a/libavfilter/allfilters.c b/libavfilter/allfilters.c
> index 64b634e8f3..fbd9ec026e 100644
> --- a/libavfilter/allfilters.c
> +++ b/libavfilter/allfilters.c
> @@ -134,6 +134,7 @@ static void register_all(void)
>
> REGISTER_FILTER(ALPHAEXTRACT, alphaextract, vf);
> REGISTER_FILTER(ALPHAMERGE, alphamerge, vf);
> + REGISTER_FILTER(ANSNR, ansnr, vf);
> REGISTER_FILTER(ASS, ass, vf);
> REGISTER_FILTER(ATADENOISE, atadenoise, vf);
> REGISTER_FILTER(AVGBLUR, avgblur, vf);
> diff --git a/libavfilter/vf_ansnr.c b/libavfilter/vf_ansnr.c
> new file mode 100644
> index 0000000000..3c53b726d2
> --- /dev/null
> +++ b/libavfilter/vf_ansnr.c
> @@ -0,0 +1,727 @@
> +/*
> + * Copyright 2016-2017 Netflix, Inc.
> + * Copyright (c) 2017 Betty Wu
> + *
> + * This file is part of FFmpeg.
> + *
> + * FFmpeg is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 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
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser 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
> + * Caculate the ANSNR between two input videos.
> + * @author Betty Wu
> + */
> +
> +#include "libavutil/avstring.h"
> +#include "libavutil/opt.h"
> +#include "libavutil/pixdesc.h"
> +#include "avfilter.h"
> +#include "dualinput.h"
> +#include "drawutils.h"
> +#include "formats.h"
> +#include "internal.h"
> +#include "video.h"
> +
> +#define MAX_ALIGN 32
> +#define ALIGN_CEIL(x) ((x) + ((x) % MAX_ALIGN ? MAX_ALIGN - (x) %
> MAX_ALIGN : 0))
> +#define OPT_RANGE_PIXEL_OFFSET -128
> +
> +#ifndef ANSNR_OPTIONS_H_
> +#define ANSNR_OPTIONS_H_
> +
> +/* Whether to use border replication instead of zero extension. */
> +/* #define ANSNR_OPT_BORDER_REPLICATE */
> +
> +/* Whether to save intermediate results to files. */
> +/* #define ANSNR_OPT_DEBUG_DUMP */
> +
> +/* Whether to use a 1-D approximation of filters. */
> +/* #define ANSNR_OPT_FILTER_1D */
> +
> +/* Whether to normalize result by dividing against maximum ANSNR. */
> +/* #define ANSNR_OPT_NORMALIZE */
> +
> +/* Whether to use single precision for computation. */
> +#define ANSNR_OPT_SINGLE_PRECISION
> +//#define ANSNR_OPT_DOUBLE_PRECISION
> +
> +#endif /* ANSNR_OPTIONS_H_ */
> +
> +#ifndef ANSNR_TOOLS_H_
> +#define ANSNR_TOOLS_H_
> +#endif
> +
> +#ifdef ANSNR_OPT_SINGLE_PRECISION
> + typedef float number_t;
> + #define read_image_b read_image_b2s
> + #define read_image_w read_image_w2s
> + #define ansnr_filter1d_ref ansnr_filter1d_ref_s
> + #define ansnr_filter1d_dis ansnr_filter1d_dis_s
> + #define ansnr_filter2d_ref ansnr_filter2d_ref_s
> + #define ansnr_filter2d_dis ansnr_filter2d_dis_s
> + #define ansnr_filter1d ansnr_filter1d_s
> + #define ansnr_filter2d ansnr_filter2d_s
> + #define ansnr_mse ansnr_mse_s
> +#else
> + typedef double number_t;
> + #define read_image_b read_image_b2d
> + #define read_image_w read_image_w2d
> + #define ansnr_filter1d_ref ansnr_filter1d_ref_d
> + #define ansnr_filter1d_dis ansnr_filter1d_dis_d
> + #define ansnr_filter2d_ref ansnr_filter2d_ref_d
> + #define ansnr_filter2d_dis ansnr_filter2d_dis_d
> + #define ansnr_filter1d ansnr_filter1d_d
> + #define ansnr_filter2d ansnr_filter2d_d
> + #define ansnr_mse ansnr_mse_d
> +#endif
> +
> +typedef struct ANSNRContext {
> + const AVClass *class;
> + FFDualInputContext dinput;
> + uint64_t nb_frames;
> + FILE *stats_file;
> + char *stats_file_str;
> + int stats_version;
> + int stats_header_written;
> + int stats_add_max;
> + int is_rgb;
> + uint8_t rgba_map[4];
> + double score;
> + double score_total;
> + char comps[4];
> + int nb_components;
> + int planewidth[4];
> + int planeheight[4];
> +
> +} ANSNRContext;
> +#define OFFSET(x) offsetof(ANSNRContext, x)
> +#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
> +
> +static const AVOption ansnr_options[] = {
> + {"stats_file", "Set file where to store per-frame difference
> information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0,
> 0, FLAGS },
> + {"f", "Set file where to store per-frame difference
> information", OFFSET(stats_file_str), AV_OPT_TYPE_STRING, {.str=NULL}, 0,
> 0, FLAGS },
> + { NULL }
> +};
> +AVFILTER_DEFINE_CLASS(ansnr);
> +
> +
> +const int ansnr_filter1d_ref_width = 3;
> +const int ansnr_filter1d_dis_width = 5;
> +const int ansnr_filter2d_ref_width = 3;
> +const int ansnr_filter2d_dis_width = 5;
> +
> +
> +#ifdef ANSNR_OPT_SINGLE_PRECISION
> +const float ansnr_filter1d_ref_s[3] = { 0x1.00243ap-2, 0x1.ffb78cp-2,
> 0x1.00243ap-2 };
> +const float ansnr_filter1d_dis_s[5] = { 0x1.be5f0ep-5, 0x1.f41fd6p-3,
> 0x1.9c4868p-2, 0x1.f41fd6p-3, 0x1.be5f0ep-5 };
> +const float ansnr_filter2d_ref_s[3*3] = {
> + 1.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0,
> + 2.0 / 16.0, 4.0 / 16.0, 2.0 / 16.0,
> + 1.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0
> +};
> +const float ansnr_filter2d_dis_s[5*5] = {
> + 2.0 / 571.0, 7.0 / 571.0, 12.0 / 571.0, 7.0 / 571.0, 2.0 / 571.0,
> + 7.0 / 571.0, 31.0 / 571.0, 52.0 / 571.0, 31.0 / 571.0, 7.0 / 571.0,
> + 12.0 / 571.0, 52.0 / 571.0, 127.0 / 571.0, 52.0 / 571.0, 12.0 / 571.0,
> + 7.0 / 571.0, 31.0 / 571.0, 52.0 / 571.0, 31.0 / 571.0, 7.0 / 571.0,
> + 2.0 / 571.0, 7.0 / 571.0, 12.0 / 571.0, 7.0 / 571.0, 2.0 / 571.0
> +};
> +#else
> +const double ansnr_filter1d_ref_d[3] = { 0x1.00243aee6175bp-2,
> 0x1.ffb78a233d14ap-2, 0x1.00243aee6175bp-2 };
> +const double ansnr_filter1d_dis_d[5] = { 0x1.be5f0dc491a0fp-5,
> 0x1.f41fd54c58786p-3, 0x1.9c486742831f6p-2, 0x1.f41fd54c58786p-3,
> 0x1.be5f0dc491a0fp-5 };const double ansnr_filter2d_ref_d[3*3] = {
> + 1.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0,
> + 2.0 / 16.0, 4.0 / 16.0, 2.0 / 16.0,
> + 1.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0
> +};
> +const double ansnr_filter2d_dis_d[5*5] = {
> + 2.0 / 571.0, 7.0 / 571.0, 12.0 / 571.0, 7.0 / 571.0, 2.0 / 571.0,
> + 7.0 / 571.0, 31.0 / 571.0, 52.0 / 571.0, 31.0 / 571.0, 7.0 / 571.0,
> + 12.0 / 571.0, 52.0 / 571.0, 127.0 / 571.0, 52.0 / 571.0, 12.0 / 571.0,
> + 7.0 / 571.0, 31.0 / 571.0, 52.0 / 571.0, 31.0 / 571.0, 7.0 / 571.0,
> + 2.0 / 571.0, 7.0 / 571.0, 12.0 / 571.0, 7.0 / 571.0, 2.0 / 571.0
> +};
> +#endif
> +
> +static void *aligned_malloc(size_t size, size_t alignment)
> +{
> + void *ptr;
> +
> + if (posix_memalign(&ptr, alignment, size))
> + return 0;
> + else
> + return ptr;
> +}
> +
> +static void aligned_free(void *ptr)
> +{
> + free(ptr);
> +}
> +
> +#ifdef ANSNR_OPT_SINGLE_PRECISION
> +static void ansnr_mse_s(const float *ref, const float *dis, float *sig,
> float *noise, int w, int h, int ref_stride, int dis_stride)
> +{
> + int ref_px_stride = ref_stride / sizeof(float);
> + int dis_px_stride = dis_stride / sizeof(float);
> + int i, j;
> +
> + float ref_val, dis_val;
> +
> + float sig_accum = 0;
> + float noise_accum = 0;
> +
> + for (i = 0; i < h; ++i) {
> + float sig_accum_inner = 0;
> + float noise_accum_inner = 0;
> +
> + for (j = 0; j < w; ++j) {
> + ref_val = ref[i * ref_px_stride + j];
> + dis_val = dis[i * dis_px_stride + j];
> + sig_accum_inner += ref_val * ref_val;
> + noise_accum_inner += (ref_val - dis_val) * (ref_val -
> dis_val);
> + }
> +
> + sig_accum += sig_accum_inner;
> + noise_accum += noise_accum_inner;
> +
> + }
> +
> + if (sig)
> + *sig = sig_accum;
> + if (noise)
> + *noise = noise_accum;
> +}
> +
> +#ifdef ANSNR_OPT_FILTER_1D
> +static void ansnr_filter1d_s(const float *f, const uint8_t *src, float
> *dst, int w, int h, int src_stride, int dst_stride, int fwidth)
> +{
> + int src_px_stride = src_stride / sizeof(float);
> + int dst_px_stride = dst_stride / sizeof(float);
> +
> + float *tmp = aligned_malloc(ALIGN_CEIL(w * sizeof(float)), MAX_ALIGN);
> + float fcoeff, imgcoeff;
> +
> + int i, j, fi, fj, ii, jj;
> +
> + for (i = 0; i < h; ++i) {
> + /* Vertical pass. */
> + for (j = 0; j < w; ++j) {
> + float accum = 0;
> +
> + for (fi = 0; fi < fwidth; ++fi) {
> + fcoeff = f[fi];
> +
> + ii = i - fwidth / 2 + fi;
> +#ifdef ANSNR_OPT_BORDER_REPLICATE
> + ii = ii < 0 ? 0 : (ii > h - 1 ? h - 1 : ii);
> + imgcoeff = (float)src[ii * src_px_stride +
> j]+OPT_RANGE_PIXEL_OFFSET;
> +#else
> + if (ii < 0) ii = -ii;
> + else if (ii >= h) ii = 2 * h - ii - 1;
> + imgcoeff = (float)src[ii * src_px_stride +
> j]+OPT_RANGE_PIXEL_OFFSET;
> +#endif
> + accum += fcoeff * imgcoeff;
> + }
> +
> + tmp[j] = accum;
> + }
> +
> + /* Horizontal pass. */
> + for (j = 0; j < w; ++j) {
> + float accum = 0;
> +
> + for (fj = 0; fj < fwidth; ++fj) {
> + fcoeff = f[fj];
> +
> + jj = j - fwidth / 2 + fj;
> +#ifdef ANSNR_OPT_BORDER_REPLICATE
> + jj = jj < 0 ? 0 : (jj > w - 1 ? w - 1 : jj);
> + imgcoeff = tmp[jj];
> +#else
> + if (jj < 0) jj = -jj;
> + else if (jj >= w) jj = 2 * w - jj - 1;
> + imgcoeff = tmp[jj];
> +#endif
> + accum += fcoeff * imgcoeff;
> + }
> +
> + dst[i * dst_px_stride + j] = accum;
> + }
> + }
> +
> + aligned_free(tmp);
> +}
> +#else
> +static void ansnr_filter2d_s(const float *f, const uint8_t *src, float
> *dst, int w, int h, int src_stride, int dst_stride, int fwidth)
> +{
> + int src_px_stride = src_stride / sizeof(float);
> + int dst_px_stride = dst_stride / sizeof(float);
> +
> + float fcoeff, imgcoeff;
> + int i, j, fi, fj, ii, jj;
> +
> + for (i = 0; i < h; ++i) {
> + for (j = 0; j < w; ++j) {
> + float accum = 0;
> +
> + for (fi = 0; fi < fwidth; ++fi) {
> + float accum_inner = 0;
> +
> + for (fj = 0; fj < fwidth; ++fj) {
> + fcoeff = f[fi * fwidth + fj];
> +
> + ii = i - fwidth / 2 + fi;
> + jj = j - fwidth / 2 + fj;
> +#ifdef ANSNR_OPT_BORDER_REPLICATE
> + ii = ii < 0 ? 0 : (ii > h - 1 ? h - 1 : ii);
> + jj = jj < 0 ? 0 : (jj > w - 1 ? w - 1 : jj);
> + imgcoeff = (float)src[ii * src_px_stride +
> jj]+OPT_RANGE_PIXEL_OFFSET;
> +#else
> + if (ii < 0) ii = -ii;
> + else if (ii >= h) ii = 2 * h - ii - 1;
> + if (jj < 0) jj = -jj;
> + else if (jj >= w) jj = 2 * w - jj - 1;
> + imgcoeff = (float)src[ii * src_px_stride +
> jj]+OPT_RANGE_PIXEL_OFFSET;
> +#endif
> + accum_inner += fcoeff * imgcoeff;
> + }
> +
> + accum += accum_inner;
> + }
> +
> + dst[i * dst_px_stride + j] = accum;
> + }
> + }
> +}
> +#endif
> +#else
> +static void ansnr_mse_d(const double *ref, const double *dis, double
> *sig, double *noise, int w, int h, int ref_stride, int dis_stride)
> +{
> + int ref_px_stride = ref_stride / sizeof(double);
> + int dis_px_stride = dis_stride / sizeof(double);
> + int i, j;
> +
> + double ref_val, dis_val;
> +
> + double sig_accum = 0;
> + double noise_accum = 0;
> +
> + for (i = 0; i < h; ++i) {
> + double sig_accum_inner = 0;
> + double noise_accum_inner = 0;
> +
> + for (j = 0; j < w; ++j) {
> + ref_val = ref[i * ref_px_stride + j];
> + dis_val = dis[i * dis_px_stride + j];
> +
> + sig_accum_inner += ref_val * ref_val;
> + noise_accum_inner += (ref_val - dis_val) * (ref_val -
> dis_val);
> + }
> +
> + sig_accum += sig_accum_inner;
> + noise_accum += noise_accum_inner;
> + }
> +
> + if (sig)
> + *sig = sig_accum;
> + if (noise)
> + *noise = noise_accum;
> +}
> +#ifdef ANSNR_OPT_FILTER_1D
> +static void ansnr_filter1d_d(const double *f, const uint8_t *src, double
> *dst, int w, int h, int src_stride, int dst_stride, int fwidth)
> +{
> + int src_px_stride = src_stride / sizeof(double);
> + int dst_px_stride = dst_stride / sizeof(double);
> +
> + double *tmp = aligned_malloc(ALIGN_CEIL(w * sizeof(double)),
> MAX_ALIGN);
> + double fcoeff, imgcoeff;
> +
> + int i, j, fi, fj, ii, jj;
> +
> + for (i = 0; i < h; ++i) {
> + /* Vertical pass. */
> + for (j = 0; j < w; ++j) {
> + double accum = 0;
> +
> + for (fi = 0; fi < fwidth; ++fi) {
> + fcoeff = f[fi];
> +
> + ii = i - fwidth / 2 + fi;
> +#ifdef ANSNR_OPT_BORDER_REPLICATE
> + ii = ii < 0 ? 0 : (ii > h - 1 ? h - 1 : ii);
> + imgcoeff = (double)src[ii * src_px_stride +
> j]+OPT_RANGE_PIXEL_OFFSET;
> +#else
> + if (ii < 0) ii = -ii;
> + else if (ii >= h) ii = 2 * h - ii - 1;
> + imgcoeff = (double)src[ii * src_px_stride +
> j]+OPT_RANGE_PIXEL_OFFSET;
> +#endif
> + accum += fcoeff * imgcoeff;
> + }
> +
> + tmp[j] = accum;
> + }
> +
> + /* Horizontal pass. */
> + for (j = 0; j < w; ++j) {
> + double accum = 0;
> +
> + for (fj = 0; fj < fwidth; ++fj) {
> + fcoeff = f[fj];
> +
> + jj = j - fwidth / 2 + fj;
> +#ifdef ANSNR_OPT_BORDER_REPLICATE
> + jj = jj < 0 ? 0 : (jj > w - 1 ? w - 1 : jj);
> + imgcoeff = tmp[jj];
> +#else
> + if (jj < 0) jj = -jj;
> + else if (jj >= w) jj = 2 * w - jj - 1;
> + imgcoeff = tmp[jj];
> +#endif
> + accum += fcoeff * imgcoeff;
> + }
> +
> + dst[i * dst_px_stride + j] = accum;
> + }
> + }
> +
> + aligned_free(tmp);
> +}
> +#else
> +static void ansnr_filter2d_d(const double *f, const uint8_t *src, double
> *dst, int w, int h, int src_stride, int dst_stride, int fwidth)
> +{
> + int src_px_stride = src_stride / sizeof(double);
> + int dst_px_stride = dst_stride / sizeof(double);
> +
> + double fcoeff, imgcoeff;
> + int i, j, fi, fj, ii, jj;
> +
> + for (i = 0; i < h; ++i) {
> + for (j = 0; j < w; ++j) {
> + double accum = 0;
> +
> + for (fi = 0; fi < fwidth; ++fi) {
> + double accum_inner = 0;
> +
> + for (fj = 0; fj < fwidth; ++fj) {
> + fcoeff = f[fi * fwidth + fj];
> +
> + ii = i - fwidth / 2 + fi;
> + jj = j - fwidth / 2 + fj;
> +#ifdef ANSNR_OPT_BORDER_REPLICATE
> + ii = ii < 0 ? 0 : (ii > h - 1 ? h - 1 : ii);
> + jj = jj < 0 ? 0 : (jj > w - 1 ? w - 1 : jj);
> + imgcoeff = (double)src[ii * src_px_stride +
> jj]+OPT_RANGE_PIXEL_OFFSET;
> +#else
> + if (ii < 0) ii = -ii;
> + else if (ii >= h) ii = 2 * h - ii - 1;
> + if (jj < 0) jj = -jj;
> + else if (jj >= w) jj = 2 * w - jj - 1;
> + imgcoeff = (double)src[ii * src_px_stride +
> jj]+OPT_RANGE_PIXEL_OFFSET;
> +#endif
> + accum_inner += fcoeff * imgcoeff;
> + }
> +
> + accum += accum_inner;
> + }
> +
> + dst[i * dst_px_stride + j] = accum;
> + }
> + }
> +}
> +#endif
> +#endif
> +
> +static inline
> +number_t compute_ansnr(const uint8_t *ref, const uint8_t *dis, int w, int
> h, double psnr_max, number_t *out)
> +{
> + double score=0;
> + int ref_stride=ALIGN_CEIL(w * sizeof(number_t));
> + int dis_stride=ref_stride;
> + number_t *data_buf = 0;
> + char *data_top;
> +
> + number_t *ref_filtr;
> + number_t *ref_filtd;
> + number_t *dis_filtd;
> +
> + number_t sig, noise;
> +
> +#ifdef ANSNR_OPT_NORMALIZE
> + number_t noise_min;
> +#endif
> +
> + int buf_stride = ALIGN_CEIL(w * sizeof(number_t));
> + size_t buf_sz_one = (size_t)buf_stride * h;
> +
> + if (SIZE_MAX / buf_sz_one < 3)
> + {
> + goto fail;
> + }
>
code style should fix: if (SIZE_MAX / buf_sz_one < 3) {
> +
> + if (!(data_buf = aligned_malloc(buf_sz_one * 3, MAX_ALIGN)))
> + {
> + goto fail;
> + }
>
same to above comment.
> +
> + data_top = (char *)data_buf;
> +
> + ref_filtr = (number_t *)data_top; data_top += buf_sz_one;
> + ref_filtd = (number_t *)data_top; data_top += buf_sz_one;
> + dis_filtd = (number_t *)data_top; data_top += buf_sz_one;
> +
> +#ifdef ANSNR_OPT_FILTER_1D
> + ansnr_filter1d(ansnr_filter1d_ref, ref, ref_filtr, w, h, ref_stride,
> buf_stride, ansnr_filter1d_ref_width);
> + ansnr_filter1d(ansnr_filter1d_dis, ref, ref_filtd, w, h, ref_stride,
> buf_stride, ansnr_filter1d_dis_width);
> + ansnr_filter1d(ansnr_filter1d_dis, dis, dis_filtd, w, h, dis_stride,
> buf_stride, ansnr_filter1d_dis_width);
> +#else
> + ansnr_filter2d(ansnr_filter2d_ref, ref, ref_filtr, w, h, ref_stride,
> buf_stride, ansnr_filter2d_ref_width);
> + ansnr_filter2d(ansnr_filter2d_dis, ref, ref_filtd, w, h, ref_stride,
> buf_stride, ansnr_filter2d_dis_width);
> + ansnr_filter2d(ansnr_filter2d_dis, dis, dis_filtd, w, h, dis_stride,
> buf_stride, ansnr_filter2d_dis_width);
> +#endif
> +
> +#ifdef ANSNR_OPT_DEBUG_DUMP
> + write_image("stage/ref_filtr.bin", ref_filtr, w, h, buf_stride,
> sizeof(number_t));
> + write_image("stage/ref_filtd.bin", ref_filtd, w, h, buf_stride,
> sizeof(number_t));
> + write_image("stage/dis_filtd.bin", dis_filtd, w, h, buf_stride,
> sizeof(number_t));
> +#endif
> +
> + ansnr_mse(ref_filtr, dis_filtd, &sig, &noise, w, h, buf_stride,
> buf_stride);
> +#ifdef ANSNR_OPT_NORMALIZE
> + ansnr_mse(ref_filtr, ref_filtd, 0, &noise_min, w, h, buf_stride,
> buf_stride);
> + score = 10.0 * log10(noise / (noise - noise_min));
> + *out= noise / (noise - noise_min);
> +#else
> + score = noise==0 ? psnr_max : 10.0 * log10(sig / noise);
> + *out = noise==0 ? pow(10, psnr_max/10.0) : sig / noise;
>
What about use score = noise? 10.0 * log10(sig / noise) : psnr_max;
*out = noise ? sig / noise : pow(10, psnr_max/10.0) ;
> +#endif
> +
> +fail:
> + aligned_free(data_buf);
> + return score;
> +}
> +static void set_meta(AVDictionary **metadata, const char *key, char comp,
> float d)
> +{
> + char value[128];
> + snprintf(value, sizeof(value), "%0.2f", d);
> + if (comp) {
> + char key2[128];
> + snprintf(key2, sizeof(key2), "%s%c", key, comp);
> + av_dict_set(metadata, key2, value, 0);
> + } else {
> + av_dict_set(metadata, key, value, 0);
> + }
> +}
> +
> +
> +
> +
>
redundant newline
> +static int query_formats(AVFilterContext *ctx)
> +{
> + static const enum AVPixelFormat pix_fmts[] = {
> + AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16,
> +#define PF_NOALPHA(suf) AV_PIX_FMT_YUV420##suf, AV_PIX_FMT_YUV422##suf,
> AV_PIX_FMT_YUV444##suf
> +#define PF_ALPHA(suf) AV_PIX_FMT_YUVA420##suf, AV_PIX_FMT_YUVA422##suf,
> AV_PIX_FMT_YUVA444##suf
> +#define PF(suf) PF_NOALPHA(suf), PF_ALPHA(suf)
> + PF(P), PF(P9), PF(P10), PF_NOALPHA(P12), PF_NOALPHA(P14), PF(P16),
> + AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
> + AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
> + AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
> + 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_GBRAP, AV_PIX_FMT_GBRAP16,
> + AV_PIX_FMT_NONE
> + };
> +
> + AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
> + if (!fmts_list)
> + return AVERROR(ENOMEM);
> + return ff_set_common_formats(ctx, fmts_list);
> +}
>
need a new line.
> +static AVFrame *do_ansnr(AVFilterContext *ctx, AVFrame *main,
> + const AVFrame *ref)
> +{
> + ANSNRContext *s = ctx->priv;
> + AVDictionary **metadata = avpriv_frame_get_metadatap(main);
> + double psnr_max;
> + char *frame_format = (char *)av_get_pix_fmt_name(main->format);
> + if( !strcmp(frame_format,"yuv420p") || !strcmp(frame_format,"yuv422p")
> || !strcmp(frame_format,"yuv444p"))
> + psnr_max=60;
> + if( !strcmp(frame_format,"yuv420p10le") ||
> !strcmp(frame_format,"yuv422p10le")
> || !strcmp(frame_format,"yuv444p10le"))
> + psnr_max=72;
> + number_t out;
> + double score = compute_ansnr(ref->data[0], main->data[0],
> s->planewidth[0], s->planeheight[0], psnr_max, &out);
> + s->nb_frames++;
> + s->score=score;
> + s->score_total += out;
> +
> + set_meta(metadata, "lavfi.ansnr.All", 0, score);
> +
> + if (s->stats_file) {
> + fprintf(s->stats_file, "n:%"PRId64" ", s->nb_frames);
> + fprintf(s->stats_file, "All:%f\n", score);
> + }
> +
> + return main;
> +}
> +
> +static av_cold int init(AVFilterContext *ctx)
> +{
> + ANSNRContext *s = ctx->priv;
> + s->score_total = 0;
> + s->score = 0;
> + if (s->stats_file_str) {
> + if (s->stats_version < 2 && s->stats_add_max) {
> + av_log(ctx, AV_LOG_ERROR,
> + "stats_add_max was specified but stats_version < 2.\n" );
> + return AVERROR(EINVAL);
> + }
> + if (!strcmp(s->stats_file_str, "-")) {
> + s->stats_file = stdout;
> + } else {
> + s->stats_file = fopen(s->stats_file_str, "w");
> + if (!s->stats_file) {
> + int err = AVERROR(errno);
> + char buf[128];
> + av_strerror(err, buf, sizeof(buf));
> + av_log(ctx, AV_LOG_ERROR, "Could not open stats file %s:
> %s\n",
> + s->stats_file_str, buf);
> + return err;
> + }
> + }
> + }
> +
> + s->dinput.process = do_ansnr;
> + return 0;
> +}
> +
> +
> +
>
redundant newline
> +static int config_input_ref(AVFilterLink *inlink)
> +{
> + const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
> + AVFilterContext *ctx = inlink->dst;
> + ANSNRContext *s = ctx->priv;
> +
> +
>
redundant newline
> + s->nb_components = desc->nb_components;
> +
> + if (ctx->inputs[0]->w != ctx->inputs[1]->w ||
> + ctx->inputs[0]->h != ctx->inputs[1]->h) {
> + av_log(ctx, AV_LOG_ERROR, "Width and height of input videos must
> be same.\n");
> + return AVERROR(EINVAL);
> + }
> + if (ctx->inputs[0]->format != ctx->inputs[1]->format) {
> + av_log(ctx, AV_LOG_ERROR, "Inputs must be of same pixel
> format.\n");
> + return AVERROR(EINVAL);
> + }
> + s->is_rgb = ff_fill_rgba_map(s->rgba_map, inlink->format) >= 0;
> + s->comps[0] = s->is_rgb ? 'r' : 'y' ;
> + s->comps[1] = s->is_rgb ? 'g' : 'u' ;
> + s->comps[2] = s->is_rgb ? 'b' : 'v' ;
> + s->comps[3] = 'a';
> +
> + s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h,
> desc->log2_chroma_h);
> + s->planeheight[0] = s->planeheight[3] = inlink->h;
> + s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w,
> desc->log2_chroma_w);
> + s->planewidth[0] = s->planewidth[3] = inlink->w;
> + //if (ARCH_X86)
> + // ff_ansnr_init_x86(&s->dsp, desc->comp[0].depth);
>
if the code have no use, should remove them.
> +
> + return 0;
> +}
> +
> +static int config_output(AVFilterLink *outlink)
> +{
> + AVFilterContext *ctx = outlink->src;
> + ANSNRContext *s = ctx->priv;
> + AVFilterLink *mainlink = ctx->inputs[0];
> + int ret;
> +
> + outlink->w = mainlink->w;
> + outlink->h = mainlink->h;
> + outlink->time_base = mainlink->time_base;
> + outlink->sample_aspect_ratio = mainlink->sample_aspect_ratio;
> + outlink->frame_rate = mainlink->frame_rate;
> +
> + if ((ret = ff_dualinput_init(ctx, &s->dinput)) < 0)
> + return ret;
> +
> + return 0;
>
maybe return ret will ok?
> +}
> +
> +static int filter_frame(AVFilterLink *inlink, AVFrame *inpicref)
> +{
> + ANSNRContext *s = inlink->dst->priv;
> + return ff_dualinput_filter_frame(&s->dinput, inlink, inpicref);
> +}
> +
> +static int request_frame(AVFilterLink *outlink)
> +{
> + ANSNRContext *s = outlink->src->priv;
> + return ff_dualinput_request_frame(&s->dinput, outlink);
> +}
> +
> +static av_cold void uninit(AVFilterContext *ctx)
> +{
> + ANSNRContext *s = ctx->priv;
> +
> + if (s->nb_frames > 0) {
> + char buf[256];
> + buf[0] = 0;
> + av_log(ctx, AV_LOG_INFO, "ANSNR%s All:%f\n", buf,
> 10*log10(s->score_total));
> + }
> +
> + ff_dualinput_uninit(&s->dinput);
> +
> + if (s->stats_file && s->stats_file != stdout)
> + fclose(s->stats_file);
> +
> +}
> +
> +static const AVFilterPad ansnr_inputs[] = {
> + {
> + .name = "main",
> + .type = AVMEDIA_TYPE_VIDEO,
> + .filter_frame = filter_frame,
> + },{
> + .name = "reference",
> + .type = AVMEDIA_TYPE_VIDEO,
> + .filter_frame = filter_frame,
> + .config_props = config_input_ref,
> + },
> + { NULL }
> +};
> +
> +static const AVFilterPad ansnr_outputs[] = {
> + {
> + .name = "default",
> + .type = AVMEDIA_TYPE_VIDEO,
> + .config_props = config_output,
> + .request_frame = request_frame,
> + },
> + { NULL }
> +};
> +
> +AVFilter ff_vf_ansnr = {
> + .name = "ansnr",
> + .description = NULL_IF_CONFIG_SMALL("Calculate the ANSNR between
> two video streams."),
> + .init = init,
> + .uninit = uninit,
> + .query_formats = query_formats,
> + .priv_size = sizeof(ANSNRContext),
> + .priv_class = &ansnr_class,
> + .inputs = ansnr_inputs,
> + .outputs = ansnr_outputs,
> +};
> --
> 2.12.1
>
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> ffmpeg-devel@ffmpeg.org
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