mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
avfilter: add midequalizer filter
Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol
parent
e477f09d0b
commit
012dd8c99a
@ -20,6 +20,7 @@ version <next>:
|
||||
- abitscope multimedia filter
|
||||
- Scenarist Closed Captions demuxer and muxer
|
||||
- threshold filter
|
||||
- midequalizer filter
|
||||
|
||||
version 3.2:
|
||||
- libopenmpt demuxer
|
||||
|
||||
@ -9643,6 +9643,17 @@ Macroblock size. Default @code{16}.
|
||||
Search parameter. Default @code{7}.
|
||||
@end table
|
||||
|
||||
@section midequalizer
|
||||
|
||||
Apply Midway Image Equalization effect using two video streams.
|
||||
|
||||
This filter accepts the following option:
|
||||
|
||||
@table @option
|
||||
@item planes
|
||||
Set which planes to process. Default is @code{15}, which is all available planes.
|
||||
@end table
|
||||
|
||||
@section minterpolate
|
||||
|
||||
Convert the video to specified frame rate using motion interpolation.
|
||||
|
||||
@ -219,6 +219,7 @@ OBJS-$(CONFIG_MCDEINT_FILTER) += vf_mcdeint.o
|
||||
OBJS-$(CONFIG_MERGEPLANES_FILTER) += vf_mergeplanes.o framesync.o
|
||||
OBJS-$(CONFIG_MESTIMATE_FILTER) += vf_mestimate.o motion_estimation.o
|
||||
OBJS-$(CONFIG_METADATA_FILTER) += f_metadata.o
|
||||
OBJS-$(CONFIG_MIDEQUALIZER_FILTER) += vf_midequalizer.o framesync.o
|
||||
OBJS-$(CONFIG_MINTERPOLATE_FILTER) += vf_minterpolate.o motion_estimation.o
|
||||
OBJS-$(CONFIG_MPDECIMATE_FILTER) += vf_mpdecimate.o
|
||||
OBJS-$(CONFIG_NEGATE_FILTER) += vf_lut.o
|
||||
|
||||
@ -235,6 +235,7 @@ void avfilter_register_all(void)
|
||||
REGISTER_FILTER(MERGEPLANES, mergeplanes, vf);
|
||||
REGISTER_FILTER(MESTIMATE, mestimate, vf);
|
||||
REGISTER_FILTER(METADATA, metadata, vf);
|
||||
REGISTER_FILTER(MIDEQUALIZER, midequalizer, vf);
|
||||
REGISTER_FILTER(MINTERPOLATE, minterpolate, vf);
|
||||
REGISTER_FILTER(MPDECIMATE, mpdecimate, vf);
|
||||
REGISTER_FILTER(NEGATE, negate, vf);
|
||||
|
||||
@ -30,7 +30,7 @@
|
||||
#include "libavutil/version.h"
|
||||
|
||||
#define LIBAVFILTER_VERSION_MAJOR 6
|
||||
#define LIBAVFILTER_VERSION_MINOR 72
|
||||
#define LIBAVFILTER_VERSION_MINOR 73
|
||||
#define LIBAVFILTER_VERSION_MICRO 100
|
||||
|
||||
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
|
||||
|
||||
391
libavfilter/vf_midequalizer.c
Normal file
391
libavfilter/vf_midequalizer.c
Normal file
@ -0,0 +1,391 @@
|
||||
/*
|
||||
* Copyright (c) 2017 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/pixdesc.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "avfilter.h"
|
||||
#include "formats.h"
|
||||
#include "internal.h"
|
||||
#include "video.h"
|
||||
#include "avfilter.h"
|
||||
#include "framesync.h"
|
||||
|
||||
typedef struct MidEqualizerContext {
|
||||
const AVClass *class;
|
||||
int width[2][4], height[2][4];
|
||||
int nb_planes;
|
||||
int planes;
|
||||
int histogram_size;
|
||||
float *histogram[2];
|
||||
unsigned *cchange;
|
||||
FFFrameSync fs;
|
||||
|
||||
void (*midequalizer)(const uint8_t *in0, const uint8_t *in1,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t linesize1, ptrdiff_t linesize2,
|
||||
ptrdiff_t dlinesize,
|
||||
int w0, int h0,
|
||||
int w1, int h1,
|
||||
float *histogram1, float *histogram2,
|
||||
unsigned *cchange, size_t hsize);
|
||||
} MidEqualizerContext;
|
||||
|
||||
#define OFFSET(x) offsetof(MidEqualizerContext, x)
|
||||
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
|
||||
|
||||
static const AVOption midequalizer_options[] = {
|
||||
{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFILTER_DEFINE_CLASS(midequalizer);
|
||||
|
||||
static int query_formats(AVFilterContext *ctx)
|
||||
{
|
||||
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_GBRP, AV_PIX_FMT_GBRAP,
|
||||
AV_PIX_FMT_GRAY8,
|
||||
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_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
|
||||
AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
|
||||
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_GBRAP10, AV_PIX_FMT_GBRAP12,
|
||||
AV_PIX_FMT_NONE
|
||||
};
|
||||
|
||||
return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
|
||||
}
|
||||
|
||||
static int process_frame(FFFrameSync *fs)
|
||||
{
|
||||
AVFilterContext *ctx = fs->parent;
|
||||
MidEqualizerContext *s = fs->opaque;
|
||||
AVFilterLink *outlink = ctx->outputs[0];
|
||||
AVFrame *out, *in0, *in1;
|
||||
int ret;
|
||||
|
||||
if ((ret = ff_framesync_get_frame(&s->fs, 0, &in0, 0)) < 0 ||
|
||||
(ret = ff_framesync_get_frame(&s->fs, 1, &in1, 0)) < 0)
|
||||
return ret;
|
||||
|
||||
if (ctx->is_disabled) {
|
||||
out = av_frame_clone(in0);
|
||||
if (!out)
|
||||
return AVERROR(ENOMEM);
|
||||
} else {
|
||||
int p;
|
||||
|
||||
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
||||
if (!out)
|
||||
return AVERROR(ENOMEM);
|
||||
av_frame_copy_props(out, in0);
|
||||
|
||||
for (p = 0; p < s->nb_planes; p++) {
|
||||
if (!((1 << p) & s->planes)) {
|
||||
av_image_copy_plane(out->data[p], out->linesize[p], in0->data[p], in0->linesize[p],
|
||||
s->width[0][p] * (1 + (s->histogram_size > 256)), s->height[0][p]);
|
||||
continue;
|
||||
}
|
||||
|
||||
s->midequalizer(in0->data[p], in1->data[p],
|
||||
out->data[p],
|
||||
in0->linesize[p], in1->linesize[p],
|
||||
out->linesize[p],
|
||||
s->width[0][p], s->height[0][p],
|
||||
s->width[1][p], s->height[1][p],
|
||||
s->histogram[0], s->histogram[1],
|
||||
s->cchange, s->histogram_size);
|
||||
}
|
||||
}
|
||||
out->pts = av_rescale_q(in0->pts, s->fs.time_base, outlink->time_base);
|
||||
|
||||
return ff_filter_frame(outlink, out);
|
||||
}
|
||||
|
||||
static void compute_histogram8(const uint8_t *src, ptrdiff_t linesize,
|
||||
int w, int h, float *histogram, size_t hsize)
|
||||
{
|
||||
int y, x;
|
||||
|
||||
memset(histogram, 0, hsize * sizeof(*histogram));
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
histogram[src[x]] += 1;
|
||||
}
|
||||
src += linesize;
|
||||
}
|
||||
|
||||
for (x = 0; x < hsize - 1; x++) {
|
||||
histogram[x + 1] += histogram[x];
|
||||
histogram[x] /= hsize;
|
||||
}
|
||||
histogram[x] /= hsize;
|
||||
}
|
||||
|
||||
static void compute_histogram16(const uint16_t *src, ptrdiff_t linesize,
|
||||
int w, int h, float *histogram, size_t hsize)
|
||||
{
|
||||
int y, x;
|
||||
|
||||
memset(histogram, 0, hsize * sizeof(*histogram));
|
||||
|
||||
for (y = 0; y < h; y++) {
|
||||
for (x = 0; x < w; x++) {
|
||||
histogram[src[x]] += 1;
|
||||
}
|
||||
src += linesize;
|
||||
}
|
||||
|
||||
for (x = 0; x < hsize - 1; x++) {
|
||||
histogram[x + 1] += histogram[x];
|
||||
histogram[x] /= hsize;
|
||||
}
|
||||
histogram[x] /= hsize;
|
||||
}
|
||||
|
||||
static void compute_contrast_change(float *histogram1, float *histogram2,
|
||||
unsigned *cchange, size_t hsize)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < hsize; i++) {
|
||||
int j;
|
||||
|
||||
for (j = 0; j < hsize && histogram2[j] < histogram1[i]; j++);
|
||||
|
||||
cchange[i] = (i + j) / 2;
|
||||
}
|
||||
}
|
||||
|
||||
static void midequalizer8(const uint8_t *in0, const uint8_t *in1,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t linesize1, ptrdiff_t linesize2,
|
||||
ptrdiff_t dlinesize,
|
||||
int w0, int h0,
|
||||
int w1, int h1,
|
||||
float *histogram1, float *histogram2,
|
||||
unsigned *cchange,
|
||||
size_t hsize)
|
||||
{
|
||||
int x, y;
|
||||
|
||||
compute_histogram8(in0, linesize1, w0, h0, histogram1, hsize);
|
||||
compute_histogram8(in1, linesize2, w1, h1, histogram2, hsize);
|
||||
|
||||
compute_contrast_change(histogram1, histogram2, cchange, hsize);
|
||||
|
||||
for (y = 0; y < h0; y++) {
|
||||
for (x = 0; x < w0; x++) {
|
||||
dst[x] = av_clip_uint8(cchange[in0[x]]);
|
||||
}
|
||||
dst += dlinesize;
|
||||
in0 += linesize1;
|
||||
}
|
||||
}
|
||||
|
||||
static void midequalizer16(const uint8_t *in0, const uint8_t *in1,
|
||||
uint8_t *dst,
|
||||
ptrdiff_t linesize1, ptrdiff_t linesize2,
|
||||
ptrdiff_t dlinesize,
|
||||
int w0, int h0,
|
||||
int w1, int h1,
|
||||
float *histogram1, float *histogram2,
|
||||
unsigned *cchange,
|
||||
size_t hsize)
|
||||
{
|
||||
const uint16_t *i = (const uint16_t *)in0;
|
||||
uint16_t *d = (uint16_t *)dst;
|
||||
int x, y;
|
||||
|
||||
compute_histogram16(i, linesize1 / 2, w0, h0, histogram1, hsize);
|
||||
compute_histogram16((const uint16_t *)in1, linesize2 / 2, w1, h1, histogram2, hsize);
|
||||
|
||||
compute_contrast_change(histogram1, histogram2, cchange, hsize);
|
||||
|
||||
for (y = 0; y < h0; y++) {
|
||||
for (x = 0; x < w0; x++) {
|
||||
d[x] = cchange[i[x]];
|
||||
}
|
||||
d += dlinesize / 2;
|
||||
i += linesize1 / 2;
|
||||
}
|
||||
}
|
||||
|
||||
static int config_input0(AVFilterLink *inlink)
|
||||
{
|
||||
AVFilterContext *ctx = inlink->dst;
|
||||
MidEqualizerContext *s = ctx->priv;
|
||||
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
||||
int vsub, hsub;
|
||||
|
||||
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
||||
|
||||
hsub = desc->log2_chroma_w;
|
||||
vsub = desc->log2_chroma_h;
|
||||
|
||||
s->height[0][0] = s->height[0][3] = inlink->h;
|
||||
s->width[0][0] = s->width[0][3] = inlink->w;
|
||||
s->height[0][1] = s->height[0][2] = AV_CEIL_RSHIFT(inlink->h, vsub);
|
||||
s->width[0][1] = s->width[0][2] = AV_CEIL_RSHIFT(inlink->w, hsub);
|
||||
|
||||
s->histogram_size = 1 << desc->comp[0].depth;
|
||||
|
||||
s->histogram[0] = av_calloc(s->histogram_size, sizeof(float));
|
||||
s->histogram[1] = av_calloc(s->histogram_size, sizeof(float));
|
||||
s->cchange = av_calloc(s->histogram_size, sizeof(unsigned));
|
||||
if (!s->histogram[0] || !s->histogram[1] || !s->cchange)
|
||||
return AVERROR(ENOMEM);
|
||||
|
||||
if (s->histogram_size == 256) {
|
||||
s->midequalizer = midequalizer8;
|
||||
} else {
|
||||
s->midequalizer = midequalizer16;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int config_input1(AVFilterLink *inlink)
|
||||
{
|
||||
AVFilterContext *ctx = inlink->dst;
|
||||
MidEqualizerContext *s = ctx->priv;
|
||||
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
|
||||
int vsub, hsub;
|
||||
|
||||
s->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
||||
|
||||
hsub = desc->log2_chroma_w;
|
||||
vsub = desc->log2_chroma_h;
|
||||
|
||||
s->height[1][0] = s->height[1][3] = inlink->h;
|
||||
s->width[1][0] = s->width[1][3] = inlink->w;
|
||||
s->height[1][1] = s->height[1][2] = AV_CEIL_RSHIFT(inlink->h, vsub);
|
||||
s->width[1][1] = s->width[1][2] = AV_CEIL_RSHIFT(inlink->w, hsub);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int config_output(AVFilterLink *outlink)
|
||||
{
|
||||
AVFilterContext *ctx = outlink->src;
|
||||
MidEqualizerContext *s = ctx->priv;
|
||||
AVFilterLink *in0 = ctx->inputs[0];
|
||||
AVFilterLink *in1 = ctx->inputs[1];
|
||||
FFFrameSyncIn *in;
|
||||
int ret;
|
||||
|
||||
if (in0->format != in1->format) {
|
||||
av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
outlink->w = in0->w;
|
||||
outlink->h = in0->h;
|
||||
outlink->time_base = in0->time_base;
|
||||
outlink->sample_aspect_ratio = in0->sample_aspect_ratio;
|
||||
outlink->frame_rate = in0->frame_rate;
|
||||
|
||||
if ((ret = ff_framesync_init(&s->fs, ctx, 2)) < 0)
|
||||
return ret;
|
||||
|
||||
in = s->fs.in;
|
||||
in[0].time_base = in0->time_base;
|
||||
in[1].time_base = in1->time_base;
|
||||
in[0].sync = 1;
|
||||
in[0].before = EXT_STOP;
|
||||
in[0].after = EXT_INFINITY;
|
||||
in[1].sync = 1;
|
||||
in[1].before = EXT_STOP;
|
||||
in[1].after = EXT_INFINITY;
|
||||
s->fs.opaque = s;
|
||||
s->fs.on_event = process_frame;
|
||||
|
||||
return ff_framesync_configure(&s->fs);
|
||||
}
|
||||
|
||||
static int filter_frame(AVFilterLink *inlink, AVFrame *buf)
|
||||
{
|
||||
MidEqualizerContext *s = inlink->dst->priv;
|
||||
return ff_framesync_filter_frame(&s->fs, inlink, buf);
|
||||
}
|
||||
|
||||
static int request_frame(AVFilterLink *outlink)
|
||||
{
|
||||
MidEqualizerContext *s = outlink->src->priv;
|
||||
return ff_framesync_request_frame(&s->fs, outlink);
|
||||
}
|
||||
|
||||
static av_cold void uninit(AVFilterContext *ctx)
|
||||
{
|
||||
MidEqualizerContext *s = ctx->priv;
|
||||
|
||||
ff_framesync_uninit(&s->fs);
|
||||
av_freep(&s->histogram[0]);
|
||||
av_freep(&s->histogram[1]);
|
||||
av_freep(&s->cchange);
|
||||
}
|
||||
|
||||
static const AVFilterPad midequalizer_inputs[] = {
|
||||
{
|
||||
.name = "in0",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
.config_props = config_input0,
|
||||
},
|
||||
{
|
||||
.name = "in1",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.filter_frame = filter_frame,
|
||||
.config_props = config_input1,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
static const AVFilterPad midequalizer_outputs[] = {
|
||||
{
|
||||
.name = "default",
|
||||
.type = AVMEDIA_TYPE_VIDEO,
|
||||
.config_props = config_output,
|
||||
.request_frame = request_frame,
|
||||
},
|
||||
{ NULL }
|
||||
};
|
||||
|
||||
AVFilter ff_vf_midequalizer = {
|
||||
.name = "midequalizer",
|
||||
.description = NULL_IF_CONFIG_SMALL("Apply Midway Equalization."),
|
||||
.priv_size = sizeof(MidEqualizerContext),
|
||||
.uninit = uninit,
|
||||
.query_formats = query_formats,
|
||||
.inputs = midequalizer_inputs,
|
||||
.outputs = midequalizer_outputs,
|
||||
.priv_class = &midequalizer_class,
|
||||
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL,
|
||||
};
|
||||
Loading…
Reference in New Issue
Block a user