mirror of https://git.videolan.org/git/ffmpeg.git
352 lines
14 KiB
C
352 lines
14 KiB
C
/*
|
|
* Copyright (c) 2022 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/common.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/imgutils.h"
|
|
#include "libavutil/opt.h"
|
|
|
|
#include "avfilter.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
enum PixelizeModes {
|
|
PIXELIZE_AVG,
|
|
PIXELIZE_MIN,
|
|
PIXELIZE_MAX,
|
|
PIXELIZE_MODES
|
|
};
|
|
|
|
typedef struct PixelizeContext {
|
|
const AVClass *class;
|
|
|
|
int block_w[4], block_h[4];
|
|
int mode;
|
|
|
|
int depth;
|
|
int planes;
|
|
int nb_planes;
|
|
int linesize[4];
|
|
int planewidth[4];
|
|
int planeheight[4];
|
|
|
|
int log2_chroma_w;
|
|
int log2_chroma_h;
|
|
|
|
int (*pixelize[PIXELIZE_MODES])(const uint8_t *src, uint8_t *dst,
|
|
ptrdiff_t src_linesize,
|
|
ptrdiff_t dst_linesize,
|
|
int w, int h);
|
|
} PixelizeContext;
|
|
|
|
static const enum AVPixelFormat pix_fmts[] = {
|
|
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_YUV410P, AV_PIX_FMT_YUV411P,
|
|
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
|
|
AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
|
|
AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
|
|
AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
|
|
AV_PIX_FMT_YUVJ411P,
|
|
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_YUV440P10,
|
|
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
|
|
AV_PIX_FMT_YUV440P12,
|
|
AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
|
|
AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
|
|
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_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
|
|
AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
|
|
AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
|
|
AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
|
|
AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
|
|
AV_PIX_FMT_NONE
|
|
};
|
|
|
|
typedef struct ThreadData {
|
|
AVFrame *in, *out;
|
|
} ThreadData;
|
|
|
|
#define PIXELIZE_AVG(name, type, stype) \
|
|
static int pixelize_avg##name(const uint8_t *ssrc, uint8_t *ddst, \
|
|
ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
|
|
int w, int h) \
|
|
{ \
|
|
const type *src = (const type *)ssrc; \
|
|
type *dst = (type *)ddst; \
|
|
stype sum = 0; \
|
|
type fill; \
|
|
for (int y = 0; y < h; y++) { \
|
|
for (int x = 0; x < w; x++) \
|
|
sum += src[x]; \
|
|
\
|
|
src += src_linesize / sizeof(type); \
|
|
} \
|
|
\
|
|
fill = sum / (w * h); \
|
|
\
|
|
for (int y = 0; y < h; y++) { \
|
|
for (int x = 0; x < w; x++) \
|
|
dst[x] = fill; \
|
|
\
|
|
dst += dst_linesize / sizeof(type); \
|
|
} \
|
|
\
|
|
return 0; \
|
|
}
|
|
|
|
#define PIXELIZE_MIN(name, type, stype) \
|
|
static int pixelize_min##name(const uint8_t *ssrc, uint8_t *ddst, \
|
|
ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
|
|
int w, int h) \
|
|
{ \
|
|
const type *src = (const type *)ssrc; \
|
|
type *dst = (type *)ddst; \
|
|
type fill = src[0]; \
|
|
\
|
|
for (int y = 0; y < h; y++) { \
|
|
for (int x = 0; x < w; x++) \
|
|
fill = FFMIN(src[x], fill); \
|
|
\
|
|
src += src_linesize / sizeof(type); \
|
|
} \
|
|
\
|
|
for (int y = 0; y < h; y++) { \
|
|
for (int x = 0; x < w; x++) \
|
|
dst[x] = fill; \
|
|
\
|
|
dst += dst_linesize / sizeof(type); \
|
|
} \
|
|
\
|
|
return 0; \
|
|
}
|
|
|
|
#define PIXELIZE_MAX(name, type, stype) \
|
|
static int pixelize_max##name(const uint8_t *ssrc, uint8_t *ddst, \
|
|
ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
|
|
int w, int h) \
|
|
{ \
|
|
const type *src = (const type *)ssrc; \
|
|
type *dst = (type *)ddst; \
|
|
type fill = src[0]; \
|
|
\
|
|
for (int y = 0; y < h; y++) { \
|
|
for (int x = 0; x < w; x++) \
|
|
fill = FFMAX(src[x], fill); \
|
|
\
|
|
src += src_linesize / sizeof(type); \
|
|
} \
|
|
\
|
|
for (int y = 0; y < h; y++) { \
|
|
for (int x = 0; x < w; x++) \
|
|
dst[x] = fill; \
|
|
\
|
|
dst += dst_linesize / sizeof(type); \
|
|
} \
|
|
\
|
|
return 0; \
|
|
}
|
|
|
|
PIXELIZE_AVG(8, uint8_t, unsigned)
|
|
PIXELIZE_AVG(16, uint16_t, uint64_t)
|
|
PIXELIZE_MIN(8, uint8_t, unsigned)
|
|
PIXELIZE_MIN(16, uint16_t, uint64_t)
|
|
PIXELIZE_MAX(8, uint8_t, unsigned)
|
|
PIXELIZE_MAX(16, uint16_t, uint64_t)
|
|
|
|
static int pixelize_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
|
|
{
|
|
PixelizeContext *s = ctx->priv;
|
|
const int mode = s->mode;
|
|
ThreadData *td = arg;
|
|
AVFrame *out = td->out;
|
|
AVFrame *in = td->in;
|
|
|
|
for (int p = 0; p < s->nb_planes; p++) {
|
|
const int wh = s->planeheight[p];
|
|
const int h = (s->planeheight[p] + s->block_h[p] - 1) / s->block_h[p];
|
|
const int w = (s->planewidth[p] + s->block_w[p] - 1) / s->block_w[p];
|
|
const int wslice_start = (wh * jobnr) / nb_jobs;
|
|
const int wslice_end = (wh * (jobnr+1)) / nb_jobs;
|
|
const int slice_start = (h * jobnr) / nb_jobs;
|
|
const int slice_end = (h * (jobnr+1)) / nb_jobs;
|
|
const ptrdiff_t out_linesize = out->linesize[p];
|
|
const ptrdiff_t in_linesize = in->linesize[p];
|
|
const uint8_t *src = in->data[p];
|
|
uint8_t *dst = out->data[p];
|
|
|
|
if (!((1 << p) & s->planes)) {
|
|
av_image_copy_plane(dst + wslice_start * out_linesize,
|
|
out_linesize,
|
|
src + wslice_start * in_linesize,
|
|
in_linesize,
|
|
s->linesize[p], wslice_end - wslice_start);
|
|
continue;
|
|
}
|
|
|
|
for (int y = slice_start; y < slice_end; y++) {
|
|
const int block_h = FFMIN(s->block_h[p], s->planeheight[p] - y * s->block_h[p]);
|
|
for (int x = 0; x < w; x++) {
|
|
const int block_w = FFMIN(s->block_w[p], s->planewidth[p] - x * s->block_w[p]);
|
|
|
|
s->pixelize[mode](src + s->block_h[p] * y * in_linesize +
|
|
x * s->block_w[p] * (1 + (s->depth > 8)),
|
|
dst + s->block_h[p] * y * out_linesize +
|
|
x * s->block_w[p] * (1 + (s->depth > 8)),
|
|
in_linesize, out_linesize, block_w, block_h);
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
PixelizeContext *s = ctx->priv;
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
const AVPixFmtDescriptor *desc;
|
|
int ret;
|
|
|
|
desc = av_pix_fmt_desc_get(outlink->format);
|
|
if (!desc)
|
|
return AVERROR_BUG;
|
|
s->nb_planes = av_pix_fmt_count_planes(outlink->format);
|
|
s->depth = desc->comp[0].depth;
|
|
|
|
if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
|
|
return ret;
|
|
|
|
s->planewidth[1] = s->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
|
|
s->planewidth[0] = s->planewidth[3] = inlink->w;
|
|
|
|
s->planeheight[1] = s->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
|
|
s->planeheight[0] = s->planeheight[3] = inlink->h;
|
|
|
|
s->log2_chroma_w = desc->log2_chroma_w;
|
|
s->log2_chroma_h = desc->log2_chroma_h;
|
|
|
|
s->pixelize[PIXELIZE_AVG] = s->depth <= 8 ? pixelize_avg8 : pixelize_avg16;
|
|
s->pixelize[PIXELIZE_MIN] = s->depth <= 8 ? pixelize_min8 : pixelize_min16;
|
|
s->pixelize[PIXELIZE_MAX] = s->depth <= 8 ? pixelize_max8 : pixelize_max16;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
PixelizeContext *s = ctx->priv;
|
|
ThreadData td;
|
|
AVFrame *out;
|
|
int ret;
|
|
|
|
s->block_w[1] = s->block_w[2] = FFMAX(1, s->block_w[0] >> s->log2_chroma_w);
|
|
s->block_w[3] = s->block_w[0] = s->block_w[1] << s->log2_chroma_w;
|
|
|
|
s->block_h[1] = s->block_h[2] = FFMAX(1, s->block_h[0] >> s->log2_chroma_h);
|
|
s->block_h[3] = s->block_h[0] = s->block_h[1] << s->log2_chroma_h;
|
|
|
|
if (av_frame_is_writable(in)) {
|
|
out = in;
|
|
} else {
|
|
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
ret = av_frame_copy_props(out, in);
|
|
if (ret < 0) {
|
|
av_frame_free(&out);
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
td.out = out;
|
|
td.in = in;
|
|
ff_filter_execute(ctx, pixelize_slice, &td, NULL,
|
|
FFMIN((s->planeheight[1] + s->block_h[1] - 1) / s->block_h[1],
|
|
ff_filter_get_nb_threads(ctx)));
|
|
|
|
if (out != in)
|
|
av_frame_free(&in);
|
|
return ff_filter_frame(outlink, out);
|
|
fail:
|
|
av_frame_free(&in);
|
|
return ret;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(PixelizeContext, x)
|
|
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_RUNTIME_PARAM)
|
|
|
|
static const AVOption pixelize_options[] = {
|
|
{ "width", "set block width", OFFSET(block_w[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
|
|
{ "w", "set block width", OFFSET(block_w[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
|
|
{ "height", "set block height", OFFSET(block_h[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
|
|
{ "h", "set block height", OFFSET(block_h[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
|
|
{ "mode", "set the pixelize mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, PIXELIZE_MODES-1, FLAGS, .unit = "mode" },
|
|
{ "m", "set the pixelize mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, PIXELIZE_MODES-1, FLAGS, .unit = "mode" },
|
|
{ "avg", "average", 0, AV_OPT_TYPE_CONST, {.i64=PIXELIZE_AVG}, 0, 0, FLAGS, .unit = "mode" },
|
|
{ "min", "minimum", 0, AV_OPT_TYPE_CONST, {.i64=PIXELIZE_MIN}, 0, 0, FLAGS, .unit = "mode" },
|
|
{ "max", "maximum", 0, AV_OPT_TYPE_CONST, {.i64=PIXELIZE_MAX}, 0, 0, FLAGS, .unit = "mode" },
|
|
{ "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=15}, 0, 15, FLAGS },
|
|
{ "p", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=15}, 0, 15, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(pixelize);
|
|
|
|
static const AVFilterPad pixelize_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
};
|
|
|
|
static const AVFilterPad pixelize_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
},
|
|
};
|
|
|
|
const AVFilter ff_vf_pixelize = {
|
|
.name = "pixelize",
|
|
.description = NULL_IF_CONFIG_SMALL("Pixelize video."),
|
|
.priv_size = sizeof(PixelizeContext),
|
|
.priv_class = &pixelize_class,
|
|
FILTER_INPUTS(pixelize_inputs),
|
|
FILTER_OUTPUTS(pixelize_outputs),
|
|
FILTER_PIXFMTS_ARRAY(pix_fmts),
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
|
|
.process_command = ff_filter_process_command,
|
|
};
|