0,0 → 1,312 |
/* |
* Copyright (c) 2015 Niklas Haas |
* Copyright (c) 2015 Paul B Mahol |
* |
* Permission is hereby granted, free of charge, to any person obtaining a copy |
* of this software and associated documentation files (the "Software"), to deal |
* in the Software without restriction, including without limitation the rights |
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
* copies of the Software, and to permit persons to whom the Software is |
* furnished to do so, subject to the following conditions: |
* |
* The above copyright notice and this permission notice shall be included in |
* all copies or substantial portions of the Software. |
* |
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
* SOFTWARE. |
*/ |
|
#include "libavutil/opt.h" |
#include "libavutil/pixdesc.h" |
#include "avfilter.h" |
#include "internal.h" |
#include "video.h" |
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typedef struct DebandContext { |
const AVClass *class; |
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float threshold[4]; |
int range; |
int blur; |
float direction; |
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int nb_components; |
int planewidth[4]; |
int planeheight[4]; |
int thr[4]; |
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int *x_pos; |
int *y_pos; |
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int (*deband)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
} DebandContext; |
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#define OFFSET(x) offsetof(DebandContext, x) |
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM |
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static const AVOption deband_options[] = { |
{ "1thr", "set 1st plane threshold", OFFSET(threshold[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS }, |
{ "2thr", "set 2nd plane threshold", OFFSET(threshold[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS }, |
{ "3thr", "set 3rd plane threshold", OFFSET(threshold[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS }, |
{ "4thr", "set 4th plane threshold", OFFSET(threshold[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS }, |
{ "range", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS }, |
{ "r", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS }, |
{ "direction", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS }, |
{ "d", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS }, |
{ "blur", "enable blur", OFFSET(blur), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS }, |
{ NULL } |
}; |
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AVFILTER_DEFINE_CLASS(deband); |
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static int query_formats(AVFilterContext *ctx) |
{ |
static const enum AVPixelFormat pix_fmts[] = { |
AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16, |
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, |
AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P, |
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P, |
AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ440P, |
AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P, |
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9, |
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_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, |
AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14, |
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, |
AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, |
AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, |
AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, |
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16, |
AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16, |
AV_PIX_FMT_NONE |
}; |
AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
if (!fmts_list) |
return AVERROR(ENOMEM); |
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return ff_set_common_formats(ctx, fmts_list); |
} |
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static float frand(int x, int y) |
{ |
const float r = sinf(x * 12.9898 + y * 78.233) * 43758.545; |
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return r - floorf(r); |
} |
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static int inline get_avg(int ref0, int ref1, int ref2, int ref3) |
{ |
return (ref0 + ref1 + ref2 + ref3) / 4; |
} |
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typedef struct ThreadData { |
AVFrame *in, *out; |
} ThreadData; |
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static int deband_8_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
{ |
DebandContext *s = ctx->priv; |
ThreadData *td = arg; |
AVFrame *in = td->in; |
AVFrame *out = td->out; |
int x, y, p; |
|
for (p = 0; p < s->nb_components; p++) { |
const uint8_t *src_ptr = (const uint8_t *)in->data[p]; |
uint8_t *dst_ptr = (uint8_t *)out->data[p]; |
const int dst_linesize = out->linesize[p]; |
const int src_linesize = in->linesize[p]; |
const int thr = s->thr[p]; |
const int start = (s->planeheight[p] * jobnr ) / nb_jobs; |
const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; |
const int w = s->planewidth[p] - 1; |
const int h = s->planeheight[p] - 1; |
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for (y = start; y < end; y++) { |
const int pos = y * s->planeheight[0]; |
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for (x = 0; x < s->planewidth[p]; x++) { |
const int x_pos = s->x_pos[pos + x]; |
const int y_pos = s->y_pos[pos + x]; |
const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)]; |
const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)]; |
const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)]; |
const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)]; |
const int src0 = src_ptr[y * src_linesize + x]; |
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if (s->blur) { |
const int avg = get_avg(ref0, ref1, ref2, ref3); |
const int diff = FFABS(src0 - avg); |
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dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0; |
} else { |
dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) && |
(FFABS(src0 - ref1) < thr) && |
(FFABS(src0 - ref2) < thr) && |
(FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0; |
} |
} |
} |
} |
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return 0; |
} |
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static int deband_16_c(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
{ |
DebandContext *s = ctx->priv; |
ThreadData *td = arg; |
AVFrame *in = td->in; |
AVFrame *out = td->out; |
int x, y, p; |
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for (p = 0; p < s->nb_components; p++) { |
const uint16_t *src_ptr = (const uint16_t *)in->data[p]; |
uint16_t *dst_ptr = (uint16_t *)out->data[p]; |
const int dst_linesize = out->linesize[p] / 2; |
const int src_linesize = in->linesize[p] / 2; |
const int thr = s->thr[p]; |
const int start = (s->planeheight[p] * jobnr ) / nb_jobs; |
const int end = (s->planeheight[p] * (jobnr+1)) / nb_jobs; |
const int w = s->planewidth[p] - 1; |
const int h = s->planeheight[p] - 1; |
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for (y = start; y < end; y++) { |
const int pos = y * s->planeheight[0]; |
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for (x = 0; x < s->planewidth[p]; x++) { |
const int x_pos = s->x_pos[pos + x]; |
const int y_pos = s->y_pos[pos + x]; |
const int ref0 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)]; |
const int ref1 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + x_pos, 0, w)]; |
const int ref2 = src_ptr[av_clip(y + -y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)]; |
const int ref3 = src_ptr[av_clip(y + y_pos, 0, h) * src_linesize + av_clip(x + -x_pos, 0, w)]; |
const int src0 = src_ptr[y * src_linesize + x]; |
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if (s->blur) { |
const int avg = get_avg(ref0, ref1, ref2, ref3); |
const int diff = FFABS(src0 - avg); |
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dst_ptr[y * dst_linesize + x] = diff < thr ? avg : src0; |
} else { |
dst_ptr[y * dst_linesize + x] = (FFABS(src0 - ref0) < thr) && |
(FFABS(src0 - ref1) < thr) && |
(FFABS(src0 - ref2) < thr) && |
(FFABS(src0 - ref3) < thr) ? get_avg(ref0, ref1, ref2, ref3) : src0; |
} |
} |
} |
} |
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return 0; |
} |
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static int config_input(AVFilterLink *inlink) |
{ |
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format); |
AVFilterContext *ctx = inlink->dst; |
DebandContext *s = ctx->priv; |
const float direction = s->direction; |
const int range = s->range; |
int x, y; |
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s->nb_components = desc->nb_components; |
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s->planeheight[1] = s->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h); |
s->planeheight[0] = s->planeheight[3] = inlink->h; |
s->planewidth[1] = s->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w); |
s->planewidth[0] = s->planewidth[3] = inlink->w; |
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s->deband = desc->comp[0].depth_minus1 > 7 ? deband_16_c : deband_8_c; |
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s->thr[0] = ((1 << (desc->comp[0].depth_minus1 + 1)) - 1) * s->threshold[0]; |
s->thr[1] = ((1 << (desc->comp[1].depth_minus1 + 1)) - 1) * s->threshold[1]; |
s->thr[2] = ((1 << (desc->comp[2].depth_minus1 + 1)) - 1) * s->threshold[2]; |
s->thr[3] = ((1 << (desc->comp[3].depth_minus1 + 1)) - 1) * s->threshold[3]; |
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s->x_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->x_pos)); |
s->y_pos = av_malloc(s->planewidth[0] * s->planeheight[0] * sizeof(*s->y_pos)); |
if (!s->x_pos || !s->y_pos) |
return AVERROR(ENOMEM); |
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for (y = 0; y < s->planeheight[0]; y++) { |
for (x = 0; x < s->planewidth[0]; x++) { |
const float r = frand(x, y); |
const float dir = direction < 0 ? -direction : r * direction; |
const int dist = range < 0 ? -range : r * range; |
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s->x_pos[y * s->planeheight[0] + x] = cosf(dir) * dist; |
s->y_pos[y * s->planeheight[0] + x] = sinf(dir) * dist; |
} |
} |
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return 0; |
} |
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static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
{ |
AVFilterContext *ctx = inlink->dst; |
AVFilterLink *outlink = ctx->outputs[0]; |
DebandContext *s = ctx->priv; |
AVFrame *out; |
ThreadData td; |
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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); |
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td.in = in; td.out = out; |
ctx->internal->execute(ctx, s->deband, &td, NULL, FFMIN3(s->planeheight[1], |
s->planeheight[2], |
ctx->graph->nb_threads)); |
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av_frame_free(&in); |
return ff_filter_frame(outlink, out); |
} |
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static av_cold void uninit(AVFilterContext *ctx) |
{ |
DebandContext *s = ctx->priv; |
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av_freep(&s->x_pos); |
av_freep(&s->y_pos); |
} |
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static const AVFilterPad avfilter_vf_deband_inputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
.config_props = config_input, |
.filter_frame = filter_frame, |
}, |
{ NULL } |
}; |
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static const AVFilterPad avfilter_vf_deband_outputs[] = { |
{ |
.name = "default", |
.type = AVMEDIA_TYPE_VIDEO, |
}, |
{ NULL } |
}; |
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AVFilter ff_vf_deband = { |
.name = "deband", |
.description = NULL_IF_CONFIG_SMALL("Debands video."), |
.priv_size = sizeof(DebandContext), |
.priv_class = &deband_class, |
.uninit = uninit, |
.query_formats = query_formats, |
.inputs = avfilter_vf_deband_inputs, |
.outputs = avfilter_vf_deband_outputs, |
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
}; |