123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374 |
- /*
- * 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 <float.h>
- #include "config.h"
- #include "libavutil/attributes.h"
- #include "libavutil/common.h"
- #include "libavutil/pixdesc.h"
- #include "libavutil/intreadwrite.h"
- #include "libavutil/opt.h"
- #include "avfilter.h"
- #include "formats.h"
- #include "internal.h"
- #include "video.h"
- #include "vf_hqdn3d.h"
- #define LUT_BITS (depth==16 ? 8 : 4)
- #define LOAD(x) (((depth == 8 ? src[x] : AV_RN16A(src + (x) * 2)) << (16 - depth))\
- + (((1 << (16 - depth)) - 1) >> 1))
- #define STORE(x,val) (depth == 8 ? dst[x] = (val) >> (16 - depth) : \
- AV_WN16A(dst + (x) * 2, (val) >> (16 - depth)))
- av_always_inline
- static uint32_t lowpass(int prev, int cur, int16_t *coef, int depth)
- {
- int d = (prev - cur) >> (8 - LUT_BITS);
- 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 += 256 << LUT_BITS;
- for (y = 0; y < h; y++) {
- for (x = 0; x < w; x++) {
- frame_ant[x] = tmp = lowpass(frame_ant[x], LOAD(x), temporal, depth);
- STORE(x, tmp);
- }
- src += sstride;
- dst += dstride;
- frame_ant += w;
- }
- }
- av_always_inline
- static void denoise_spatial(HQDN3DContext *s,
- 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 += 256 << LUT_BITS;
- temporal += 256 << LUT_BITS;
- /* 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, depth);
- frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth);
- STORE(x, tmp);
- }
- for (y = 1; y < h; y++) {
- src += sstride;
- dst += dstride;
- frame_ant += w;
- if (s->denoise_row[depth]) {
- s->denoise_row[depth](src, dst, line_ant, frame_ant, w, spatial, temporal);
- continue;
- }
- pixel_ant = LOAD(0);
- for (x = 0; x < w-1; x++) {
- line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial, depth);
- pixel_ant = lowpass(pixel_ant, LOAD(x+1), spatial, depth);
- frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth);
- STORE(x, tmp);
- }
- line_ant[x] = tmp = lowpass(line_ant[x], pixel_ant, spatial, depth);
- frame_ant[x] = tmp = lowpass(frame_ant[x], tmp, temporal, depth);
- STORE(x, tmp);
- }
- }
- av_always_inline
- static int denoise_depth(HQDN3DContext *s,
- 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)
- {
- // FIXME: For 16bit depth, frame_ant could be a pointer to the previous
- // filtered frame rather than a separate buffer.
- 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_array(w, h*sizeof(uint16_t));
- if (!frame_ant)
- return AVERROR(ENOMEM);
- 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(s, 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);
- emms_c();
- return 0;
- }
- #define denoise(...) \
- do { \
- int ret = AVERROR_BUG; \
- switch (s->depth) { \
- case 8: ret = denoise_depth(__VA_ARGS__, 8); break; \
- case 9: ret = denoise_depth(__VA_ARGS__, 9); break; \
- case 10: ret = denoise_depth(__VA_ARGS__, 10); break; \
- case 16: ret = denoise_depth(__VA_ARGS__, 16); break; \
- } \
- if (ret < 0) { \
- av_frame_free(&out); \
- if (!direct) \
- av_frame_free(&in); \
- return ret; \
- } \
- } while (0)
- static int16_t *precalc_coefs(double dist25, int depth)
- {
- int i;
- double gamma, simil, C;
- int16_t *ct = av_malloc((512<<LUT_BITS)*sizeof(int16_t));
- if (!ct)
- return NULL;
- gamma = log(0.25) / log(1.0 - FFMIN(dist25,252.0)/255.0 - 0.00001);
- for (i = -256<<LUT_BITS; i < 256<<LUT_BITS; i++) {
- double f = ((i<<(9-LUT_BITS)) + (1<<(8-LUT_BITS)) - 1) / 512.0; // midpoint of the bin
- simil = FFMAX(0, 1.0 - fabs(f) / 255.0);
- C = pow(simil, gamma) * 256.0 * f;
- ct[(256<<LUT_BITS)+i] = lrint(C);
- }
- ct[0] = !!dist25;
- return ct;
- }
- #define PARAM1_DEFAULT 4.0
- #define PARAM2_DEFAULT 3.0
- #define PARAM3_DEFAULT 6.0
- static av_cold int init(AVFilterContext *ctx)
- {
- HQDN3DContext *s = ctx->priv;
- if (!s->strength[LUMA_SPATIAL])
- s->strength[LUMA_SPATIAL] = PARAM1_DEFAULT;
- if (!s->strength[CHROMA_SPATIAL])
- s->strength[CHROMA_SPATIAL] = PARAM2_DEFAULT * s->strength[LUMA_SPATIAL] / PARAM1_DEFAULT;
- if (!s->strength[LUMA_TMP])
- s->strength[LUMA_TMP] = PARAM3_DEFAULT * s->strength[LUMA_SPATIAL] / PARAM1_DEFAULT;
- if (!s->strength[CHROMA_TMP])
- s->strength[CHROMA_TMP] = s->strength[LUMA_TMP] * s->strength[CHROMA_SPATIAL] / s->strength[LUMA_SPATIAL];
- av_log(ctx, AV_LOG_VERBOSE, "ls:%f cs:%f lt:%f ct:%f\n",
- s->strength[LUMA_SPATIAL], s->strength[CHROMA_SPATIAL],
- s->strength[LUMA_TMP], s->strength[CHROMA_TMP]);
- return 0;
- }
- static av_cold void uninit(AVFilterContext *ctx)
- {
- HQDN3DContext *s = ctx->priv;
- av_freep(&s->coefs[0]);
- av_freep(&s->coefs[1]);
- av_freep(&s->coefs[2]);
- av_freep(&s->coefs[3]);
- av_freep(&s->line);
- av_freep(&s->frame_prev[0]);
- av_freep(&s->frame_prev[1]);
- av_freep(&s->frame_prev[2]);
- }
- static int query_formats(AVFilterContext *ctx)
- {
- static const enum AVPixelFormat pix_fmts[] = {
- AV_PIX_FMT_YUV420P,
- AV_PIX_FMT_YUV422P,
- AV_PIX_FMT_YUV444P,
- AV_PIX_FMT_YUV410P,
- AV_PIX_FMT_YUV411P,
- AV_PIX_FMT_YUV440P,
- AV_PIX_FMT_YUVJ420P,
- AV_PIX_FMT_YUVJ422P,
- AV_PIX_FMT_YUVJ444P,
- AV_PIX_FMT_YUVJ440P,
- 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_YUV420P16,
- AV_PIX_FMT_YUV422P16,
- AV_PIX_FMT_YUV444P16,
- 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);
- }
- static int config_input(AVFilterLink *inlink)
- {
- HQDN3DContext *s = inlink->dst->priv;
- const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
- int i;
- uninit(inlink->dst);
- s->hsub = desc->log2_chroma_w;
- s->vsub = desc->log2_chroma_h;
- s->depth = desc->comp[0].depth;
- s->line = av_malloc_array(inlink->w, sizeof(*s->line));
- if (!s->line)
- return AVERROR(ENOMEM);
- for (i = 0; i < 4; i++) {
- s->coefs[i] = precalc_coefs(s->strength[i], s->depth);
- if (!s->coefs[i])
- return AVERROR(ENOMEM);
- }
- if (ARCH_X86)
- ff_hqdn3d_init_x86(s);
- return 0;
- }
- static int filter_frame(AVFilterLink *inlink, AVFrame *in)
- {
- AVFilterContext *ctx = inlink->dst;
- HQDN3DContext *s = ctx->priv;
- AVFilterLink *outlink = ctx->outputs[0];
- AVFrame *out;
- int c, direct = av_frame_is_writable(in) && !ctx->is_disabled;
- if (direct) {
- out = in;
- } else {
- out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
- if (!out) {
- av_frame_free(&in);
- return AVERROR(ENOMEM);
- }
- av_frame_copy_props(out, in);
- }
- for (c = 0; c < 3; c++) {
- denoise(s, in->data[c], out->data[c],
- s->line, &s->frame_prev[c],
- AV_CEIL_RSHIFT(in->width, (!!c * s->hsub)),
- AV_CEIL_RSHIFT(in->height, (!!c * s->vsub)),
- in->linesize[c], out->linesize[c],
- s->coefs[c ? CHROMA_SPATIAL : LUMA_SPATIAL],
- s->coefs[c ? CHROMA_TMP : LUMA_TMP]);
- }
- if (ctx->is_disabled) {
- av_frame_free(&out);
- return ff_filter_frame(outlink, in);
- }
- if (!direct)
- av_frame_free(&in);
- return ff_filter_frame(outlink, out);
- }
- #define OFFSET(x) offsetof(HQDN3DContext, x)
- #define FLAGS AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM
- static const AVOption hqdn3d_options[] = {
- { "luma_spatial", "spatial luma strength", OFFSET(strength[LUMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
- { "chroma_spatial", "spatial chroma strength", OFFSET(strength[CHROMA_SPATIAL]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
- { "luma_tmp", "temporal luma strength", OFFSET(strength[LUMA_TMP]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
- { "chroma_tmp", "temporal chroma strength", OFFSET(strength[CHROMA_TMP]), AV_OPT_TYPE_DOUBLE, { .dbl = 0.0 }, 0, DBL_MAX, FLAGS },
- { NULL }
- };
- AVFILTER_DEFINE_CLASS(hqdn3d);
- static const AVFilterPad avfilter_vf_hqdn3d_inputs[] = {
- {
- .name = "default",
- .type = AVMEDIA_TYPE_VIDEO,
- .config_props = config_input,
- .filter_frame = filter_frame,
- },
- { NULL }
- };
- static const AVFilterPad avfilter_vf_hqdn3d_outputs[] = {
- {
- .name = "default",
- .type = AVMEDIA_TYPE_VIDEO
- },
- { NULL }
- };
- AVFilter ff_vf_hqdn3d = {
- .name = "hqdn3d",
- .description = NULL_IF_CONFIG_SMALL("Apply a High Quality 3D Denoiser."),
- .priv_size = sizeof(HQDN3DContext),
- .priv_class = &hqdn3d_class,
- .init = init,
- .uninit = uninit,
- .query_formats = query_formats,
- .inputs = avfilter_vf_hqdn3d_inputs,
- .outputs = avfilter_vf_hqdn3d_outputs,
- .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
- };
|