mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
414 lines
16 KiB
414 lines
16 KiB
/* |
|
* Copyright (c) 2021 Paul B Mahol |
|
* |
|
* 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 |
|
*/ |
|
|
|
#include "libavutil/imgutils.h" |
|
#include "libavutil/mem.h" |
|
#include "libavutil/opt.h" |
|
#include "libavutil/pixdesc.h" |
|
#include "avfilter.h" |
|
#include "filters.h" |
|
#include "framesync.h" |
|
#include "video.h" |
|
|
|
typedef struct VarBlurContext { |
|
const AVClass *class; |
|
FFFrameSync fs; |
|
|
|
int min_radius; |
|
int max_radius; |
|
int planes; |
|
|
|
int depth; |
|
int planewidth[4]; |
|
int planeheight[4]; |
|
|
|
uint8_t *sat[4]; |
|
int sat_linesize[4]; |
|
int nb_planes; |
|
|
|
void (*compute_sat)(const uint8_t *ssrc, |
|
int linesize, |
|
int w, int h, |
|
uint8_t *dstp, |
|
int dst_linesize); |
|
|
|
int (*blur_plane)(AVFilterContext *ctx, |
|
uint8_t *ddst, |
|
int ddst_linesize, |
|
const uint8_t *rrptr, |
|
int rrptr_linesize, |
|
int w, int h, |
|
const uint8_t *pptr, |
|
int pptr_linesize, |
|
int slice_start, int slice_end); |
|
} VarBlurContext; |
|
|
|
#define OFFSET(x) offsetof(VarBlurContext, x) |
|
#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
|
|
|
static const AVOption varblur_options[] = { |
|
{ "min_r", "set min blur radius", OFFSET(min_radius), AV_OPT_TYPE_INT, {.i64=0}, 0, 254, FLAGS }, |
|
{ "max_r", "set max blur radius", OFFSET(max_radius), AV_OPT_TYPE_INT, {.i64=8}, 1, 255, FLAGS }, |
|
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS }, |
|
{ NULL } |
|
}; |
|
|
|
FRAMESYNC_DEFINE_CLASS(varblur, VarBlurContext, fs); |
|
|
|
static const enum AVPixelFormat pix_fmts[] = { |
|
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, |
|
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, |
|
AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, |
|
AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
|
AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, |
|
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_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12, |
|
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, |
|
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
|
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9, |
|
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10, |
|
AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12, |
|
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
|
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_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16, |
|
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_GBRPF32, AV_PIX_FMT_GBRAPF32, |
|
AV_PIX_FMT_NONE |
|
}; |
|
|
|
#define COMPUTE_SAT(type, stype, depth) \ |
|
static void compute_sat##depth(const uint8_t *ssrc, \ |
|
int linesize, \ |
|
int w, int h, \ |
|
uint8_t *dstp, \ |
|
int dst_linesize) \ |
|
{ \ |
|
const type *src = (const type *)ssrc; \ |
|
stype *dst = (stype *)dstp; \ |
|
\ |
|
linesize /= (depth / 8); \ |
|
dst_linesize /= sizeof(stype); \ |
|
dst += dst_linesize; \ |
|
\ |
|
for (int y = 0; y < h; y++) { \ |
|
stype sum = 0; \ |
|
\ |
|
for (int x = 1; x < w; x++) { \ |
|
sum += src[x - 1]; \ |
|
dst[x] = sum + dst[x - dst_linesize]; \ |
|
} \ |
|
\ |
|
src += linesize; \ |
|
dst += dst_linesize; \ |
|
} \ |
|
} |
|
|
|
COMPUTE_SAT(uint8_t, uint32_t, 8) |
|
COMPUTE_SAT(uint16_t, uint64_t, 16) |
|
COMPUTE_SAT(float, double, 32) |
|
|
|
typedef struct ThreadData { |
|
AVFrame *in, *out, *radius; |
|
} ThreadData; |
|
|
|
static float lerpf(float v0, float v1, float f) |
|
{ |
|
return v0 + (v1 - v0) * f; |
|
} |
|
|
|
#define BLUR_PLANE(type, stype, bits) \ |
|
static int blur_plane##bits(AVFilterContext *ctx, \ |
|
uint8_t *ddst, \ |
|
int ddst_linesize, \ |
|
const uint8_t *rrptr, \ |
|
int rrptr_linesize, \ |
|
int w, int h, \ |
|
const uint8_t *pptr, \ |
|
int pptr_linesize, \ |
|
int slice_start, int slice_end) \ |
|
{ \ |
|
VarBlurContext *s = ctx->priv; \ |
|
const int ddepth = (bits == 32) ? 1 : s->depth; \ |
|
const int dst_linesize = ddst_linesize / (bits / 8); \ |
|
const int ptr_linesize = pptr_linesize / sizeof(stype); \ |
|
const int rptr_linesize = rrptr_linesize / (bits / 8); \ |
|
const type *rptr = ((const type *)rrptr) + slice_start * rptr_linesize; \ |
|
type *dst = ((type *)ddst) + slice_start * dst_linesize; \ |
|
const stype *ptr = (stype *)pptr; \ |
|
const float minr = 2.f * s->min_radius + 1.f; \ |
|
const float maxr = 2.f * s->max_radius + 1.f; \ |
|
const float scaler = (maxr - minr) / ((1 << ddepth) - 1); \ |
|
\ |
|
for (int y = slice_start; y < slice_end; y++) { \ |
|
for (int x = 0; x < w; x++) { \ |
|
const float radiusf = minr + (FFMAX(0.f, 2 * rptr[x] + 1 - minr)) * scaler; \ |
|
const int radius = floorf(radiusf); \ |
|
const float factor = radiusf - radius; \ |
|
const int nradius = radius + 1; \ |
|
const int l = FFMIN(radius, x); \ |
|
const int r = FFMIN(radius, w - x - 1); \ |
|
const int t = FFMIN(radius, y); \ |
|
const int b = FFMIN(radius, h - y - 1); \ |
|
const int nl = FFMIN(nradius, x); \ |
|
const int nr = FFMIN(nradius, w - x - 1); \ |
|
const int nt = FFMIN(nradius, y); \ |
|
const int nb = FFMIN(nradius, h - y - 1); \ |
|
stype tl = ptr[(y - t) * ptr_linesize + x - l]; \ |
|
stype tr = ptr[(y - t) * ptr_linesize + x + r]; \ |
|
stype bl = ptr[(y + b) * ptr_linesize + x - l]; \ |
|
stype br = ptr[(y + b) * ptr_linesize + x + r]; \ |
|
stype ntl = ptr[(y - nt) * ptr_linesize + x - nl]; \ |
|
stype ntr = ptr[(y - nt) * ptr_linesize + x + nr]; \ |
|
stype nbl = ptr[(y + nb) * ptr_linesize + x - nl]; \ |
|
stype nbr = ptr[(y + nb) * ptr_linesize + x + nr]; \ |
|
stype div = (l + r) * (t + b); \ |
|
stype ndiv = (nl + nr) * (nt + nb); \ |
|
stype p0 = (br + tl - bl - tr) / div; \ |
|
stype n0 = (nbr + ntl - nbl - ntr) / ndiv; \ |
|
\ |
|
if (bits == 32) \ |
|
dst[x] = lerpf(p0, n0, factor); \ |
|
else \ |
|
dst[x] = av_clip_uintp2_c(lrintf( \ |
|
lerpf(p0, n0, factor)), \ |
|
ddepth); \ |
|
} \ |
|
\ |
|
rptr += rptr_linesize; \ |
|
dst += dst_linesize; \ |
|
} \ |
|
\ |
|
return 0; \ |
|
} |
|
|
|
BLUR_PLANE(uint8_t, uint32_t, 8) |
|
BLUR_PLANE(uint16_t, uint64_t, 16) |
|
BLUR_PLANE(float, double, 32) |
|
|
|
static int blur_planes(AVFilterContext *ctx, void *arg, |
|
int jobnr, int nb_jobs) |
|
{ |
|
VarBlurContext *s = ctx->priv; |
|
ThreadData *td = arg; |
|
AVFrame *radius = td->radius; |
|
AVFrame *out = td->out; |
|
AVFrame *in = td->in; |
|
|
|
for (int plane = 0; plane < s->nb_planes; plane++) { |
|
const int height = s->planeheight[plane]; |
|
const int slice_start = (height * jobnr) / nb_jobs; |
|
const int slice_end = (height * (jobnr+1)) / nb_jobs; |
|
const int width = s->planewidth[plane]; |
|
const int linesize = in->linesize[plane]; |
|
const int dst_linesize = out->linesize[plane]; |
|
const uint8_t *rptr = radius->data[plane]; |
|
const int rptr_linesize = radius->linesize[plane]; |
|
uint8_t *ptr = s->sat[plane]; |
|
const int ptr_linesize = s->sat_linesize[plane]; |
|
const uint8_t *src = in->data[plane]; |
|
uint8_t *dst = out->data[plane]; |
|
|
|
if (!(s->planes & (1 << plane))) { |
|
if (out != in) |
|
av_image_copy_plane(dst + slice_start * dst_linesize, |
|
dst_linesize, |
|
src + slice_start * linesize, |
|
linesize, |
|
width * ((s->depth + 7) / 8), |
|
slice_end - slice_start); |
|
continue; |
|
} |
|
|
|
s->blur_plane(ctx, dst, dst_linesize, |
|
rptr, rptr_linesize, |
|
width, height, |
|
ptr, ptr_linesize, |
|
slice_start, slice_end); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int blur_frame(AVFilterContext *ctx, AVFrame *in, AVFrame *radius) |
|
{ |
|
VarBlurContext *s = ctx->priv; |
|
AVFilterLink *outlink = ctx->outputs[0]; |
|
ThreadData td; |
|
AVFrame *out; |
|
|
|
if (av_frame_is_writable(in)) { |
|
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 (int plane = 0; plane < s->nb_planes; plane++) { |
|
const int height = s->planeheight[plane]; |
|
const int width = s->planewidth[plane]; |
|
const int linesize = in->linesize[plane]; |
|
uint8_t *ptr = s->sat[plane]; |
|
const int ptr_linesize = s->sat_linesize[plane]; |
|
const uint8_t *src = in->data[plane]; |
|
|
|
if (!(s->planes & (1 << plane))) |
|
continue; |
|
|
|
s->compute_sat(src, linesize, width, height, ptr, ptr_linesize); |
|
} |
|
|
|
td.in = in; |
|
td.out = out; |
|
td.radius = radius; |
|
ff_filter_execute(ctx, blur_planes, &td, NULL, |
|
FFMIN(s->planeheight[1], ff_filter_get_nb_threads(ctx))); |
|
|
|
if (out != in) |
|
av_frame_free(&in); |
|
return ff_filter_frame(outlink, out); |
|
} |
|
|
|
static int activate(AVFilterContext *ctx) |
|
{ |
|
VarBlurContext *s = ctx->priv; |
|
return ff_framesync_activate(&s->fs); |
|
} |
|
|
|
static int varblur_frame(FFFrameSync *fs) |
|
{ |
|
AVFilterContext *ctx = fs->parent; |
|
VarBlurContext *s = ctx->priv; |
|
AVFrame *in, *radius; |
|
int ret; |
|
|
|
if (s->max_radius <= s->min_radius) |
|
s->max_radius = s->min_radius + 1; |
|
|
|
ret = ff_framesync_dualinput_get(fs, &in, &radius); |
|
if (ret < 0) |
|
return ret; |
|
if (!radius) |
|
return ff_filter_frame(ctx->outputs[0], in); |
|
return blur_frame(ctx, in, radius); |
|
} |
|
|
|
static int config_output(AVFilterLink *outlink) |
|
{ |
|
AVFilterContext *ctx = outlink->src; |
|
AVFilterLink *inlink = ctx->inputs[0]; |
|
AVFilterLink *radiuslink = ctx->inputs[1]; |
|
FilterLink *il = ff_filter_link(inlink); |
|
FilterLink *ol = ff_filter_link(outlink); |
|
VarBlurContext *s = ctx->priv; |
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format); |
|
int ret; |
|
|
|
if (inlink->w != radiuslink->w || inlink->h != radiuslink->h) { |
|
av_log(ctx, AV_LOG_ERROR, "First input link %s parameters " |
|
"(size %dx%d) do not match the corresponding " |
|
"second input link %s parameters (size %dx%d)\n", |
|
ctx->input_pads[0].name, inlink->w, inlink->h, |
|
ctx->input_pads[1].name, radiuslink->w, radiuslink->h); |
|
return AVERROR(EINVAL); |
|
} |
|
|
|
outlink->w = inlink->w; |
|
outlink->h = inlink->h; |
|
outlink->time_base = inlink->time_base; |
|
outlink->sample_aspect_ratio = inlink->sample_aspect_ratio; |
|
ol->frame_rate = il->frame_rate; |
|
|
|
s->depth = desc->comp[0].depth; |
|
s->blur_plane = s->depth <= 8 ? blur_plane8 : s->depth <= 16 ? blur_plane16 : blur_plane32; |
|
s->compute_sat = s->depth <= 8 ? compute_sat8 : s->depth <= 16 ? compute_sat16 : compute_sat32; |
|
|
|
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(outlink->w, desc->log2_chroma_w); |
|
s->planewidth[0] = s->planewidth[3] = outlink->w; |
|
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(outlink->h, desc->log2_chroma_h); |
|
s->planeheight[0] = s->planeheight[3] = outlink->h; |
|
|
|
s->nb_planes = av_pix_fmt_count_planes(outlink->format); |
|
|
|
for (int p = 0; p < s->nb_planes; p++) { |
|
s->sat_linesize[p] = (outlink->w + 1) * (4 + 4 * (s->depth > 8)); |
|
s->sat[p] = av_calloc(s->sat_linesize[p], outlink->h + 1); |
|
if (!s->sat[p]) |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
s->fs.on_event = varblur_frame; |
|
if ((ret = ff_framesync_init_dualinput(&s->fs, ctx)) < 0) |
|
return ret; |
|
|
|
ret = ff_framesync_configure(&s->fs); |
|
outlink->time_base = s->fs.time_base; |
|
|
|
return ret; |
|
} |
|
|
|
static av_cold void uninit(AVFilterContext *ctx) |
|
{ |
|
VarBlurContext *s = ctx->priv; |
|
|
|
ff_framesync_uninit(&s->fs); |
|
for (int p = 0; p < 4; p++) |
|
av_freep(&s->sat[p]); |
|
} |
|
|
|
static const AVFilterPad varblur_inputs[] = { |
|
{ |
|
.name = "default", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
}, |
|
{ |
|
.name = "radius", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
}, |
|
}; |
|
|
|
static const AVFilterPad varblur_outputs[] = { |
|
{ |
|
.name = "default", |
|
.type = AVMEDIA_TYPE_VIDEO, |
|
.config_props = config_output, |
|
}, |
|
}; |
|
|
|
const AVFilter ff_vf_varblur = { |
|
.name = "varblur", |
|
.description = NULL_IF_CONFIG_SMALL("Apply Variable Blur filter."), |
|
.priv_size = sizeof(VarBlurContext), |
|
.priv_class = &varblur_class, |
|
.activate = activate, |
|
.preinit = varblur_framesync_preinit, |
|
.uninit = uninit, |
|
FILTER_INPUTS(varblur_inputs), |
|
FILTER_OUTPUTS(varblur_outputs), |
|
FILTER_PIXFMTS_ARRAY(pix_fmts), |
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | |
|
AVFILTER_FLAG_SLICE_THREADS, |
|
.process_command = ff_filter_process_command, |
|
};
|
|
|