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FFmpeg/libavfilter/vf_maskedmerge.c
Paul B Mahol bd6c57d532 avfilter: add support for gray14 format
2018-09-09 19:10:44 +02:00

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/*
* Copyright (c) 2015 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 "maskedmerge.h"
#define OFFSET(x) offsetof(MaskedMergeContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption maskedmerge_options[] = {
{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(maskedmerge);
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_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_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_NONE
};
return ff_set_common_formats(ctx, ff_make_format_list(pix_fmts));
}
typedef struct ThreadData {
AVFrame *base, *overlay, *mask;
AVFrame *out;
} ThreadData;
static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
{
MaskedMergeContext *s = ctx->priv;
ThreadData *td = arg;
AVFrame *base = td->base;
AVFrame *overlay = td->overlay;
AVFrame *mask = td->mask;
AVFrame *out = td->out;
int p;
for (p = 0; p < s->nb_planes; p++) {
const int h = s->height[p];
const int slice_start = (h * jobnr) / nb_jobs;
const int slice_end = (h * (jobnr+1)) / nb_jobs;
if (!((1 << p) & s->planes)) {
av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
out->linesize[p],
base->data[p] + slice_start * base->linesize[p],
base->linesize[p],
s->linesize[p], slice_end - slice_start);
continue;
}
s->maskedmerge(base->data[p] + slice_start * base->linesize[p],
overlay->data[p] + slice_start * overlay->linesize[p],
mask->data[p] + slice_start * mask->linesize[p],
out->data[p] + slice_start * out->linesize[p],
base->linesize[p], overlay->linesize[p],
mask->linesize[p], out->linesize[p],
s->width[p], slice_end - slice_start,
s->half, s->depth);
}
return 0;
}
static int process_frame(FFFrameSync *fs)
{
AVFilterContext *ctx = fs->parent;
MaskedMergeContext *s = fs->opaque;
AVFilterLink *outlink = ctx->outputs[0];
AVFrame *out, *base, *overlay, *mask;
ThreadData td;
int ret;
if ((ret = ff_framesync_get_frame(&s->fs, 0, &base, 0)) < 0 ||
(ret = ff_framesync_get_frame(&s->fs, 1, &overlay, 0)) < 0 ||
(ret = ff_framesync_get_frame(&s->fs, 2, &mask, 0)) < 0)
return ret;
if (ctx->is_disabled) {
out = av_frame_clone(base);
if (!out)
return AVERROR(ENOMEM);
} else {
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out)
return AVERROR(ENOMEM);
av_frame_copy_props(out, base);
td.out = out;
td.base = base;
td.overlay = overlay;
td.mask = mask;
ctx->internal->execute(ctx, filter_slice, &td, NULL,
FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
}
out->pts = av_rescale_q(base->pts, s->fs.time_base, outlink->time_base);
return ff_filter_frame(outlink, out);
}
static void maskedmerge8(const uint8_t *bsrc, const uint8_t *osrc,
const uint8_t *msrc, uint8_t *dst,
ptrdiff_t blinesize, ptrdiff_t olinesize,
ptrdiff_t mlinesize, ptrdiff_t dlinesize,
int w, int h,
int half, int shift)
{
int x, y;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
dst[x] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + 128) >> 8);
}
dst += dlinesize;
bsrc += blinesize;
osrc += olinesize;
msrc += mlinesize;
}
}
static void maskedmerge16(const uint8_t *bbsrc, const uint8_t *oosrc,
const uint8_t *mmsrc, uint8_t *ddst,
ptrdiff_t blinesize, ptrdiff_t olinesize,
ptrdiff_t mlinesize, ptrdiff_t dlinesize,
int w, int h,
int half, int shift)
{
const uint16_t *bsrc = (const uint16_t *)bbsrc;
const uint16_t *osrc = (const uint16_t *)oosrc;
const uint16_t *msrc = (const uint16_t *)mmsrc;
uint16_t *dst = (uint16_t *)ddst;
int x, y;
for (y = 0; y < h; y++) {
for (x = 0; x < w; x++) {
dst[x] = bsrc[x] + ((msrc[x] * (osrc[x] - bsrc[x]) + half) >> shift);
}
dst += dlinesize / 2;
bsrc += blinesize / 2;
osrc += olinesize / 2;
msrc += mlinesize / 2;
}
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
MaskedMergeContext *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] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
s->height[0] = s->height[3] = inlink->h;
s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
s->width[0] = s->width[3] = inlink->w;
s->depth = desc->comp[0].depth;
s->half = (1 << s->depth) / 2;
if (desc->comp[0].depth == 8)
s->maskedmerge = maskedmerge8;
else
s->maskedmerge = maskedmerge16;
if (ARCH_X86)
ff_maskedmerge_init_x86(s);
return 0;
}
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
MaskedMergeContext *s = ctx->priv;
AVFilterLink *base = ctx->inputs[0];
AVFilterLink *overlay = ctx->inputs[1];
AVFilterLink *mask = ctx->inputs[2];
FFFrameSyncIn *in;
int ret;
if (base->format != overlay->format ||
base->format != mask->format) {
av_log(ctx, AV_LOG_ERROR, "inputs must be of same pixel format\n");
return AVERROR(EINVAL);
}
if (base->w != overlay->w || base->h != overlay->h ||
base->w != mask->w || base->h != mask->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) "
"and/or third input link %s parameters (size %dx%d)\n",
ctx->input_pads[0].name, base->w, base->h,
ctx->input_pads[1].name, overlay->w, overlay->h,
ctx->input_pads[2].name, mask->w, mask->h);
return AVERROR(EINVAL);
}
outlink->w = base->w;
outlink->h = base->h;
outlink->time_base = base->time_base;
outlink->sample_aspect_ratio = base->sample_aspect_ratio;
outlink->frame_rate = base->frame_rate;
if ((ret = av_image_fill_linesizes(s->linesize, outlink->format, outlink->w)) < 0)
return ret;
if ((ret = ff_framesync_init(&s->fs, ctx, 3)) < 0)
return ret;
in = s->fs.in;
in[0].time_base = base->time_base;
in[1].time_base = overlay->time_base;
in[2].time_base = mask->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;
in[2].sync = 1;
in[2].before = EXT_STOP;
in[2].after = EXT_INFINITY;
s->fs.opaque = s;
s->fs.on_event = process_frame;
return ff_framesync_configure(&s->fs);
}
static int activate(AVFilterContext *ctx)
{
MaskedMergeContext *s = ctx->priv;
return ff_framesync_activate(&s->fs);
}
static av_cold void uninit(AVFilterContext *ctx)
{
MaskedMergeContext *s = ctx->priv;
ff_framesync_uninit(&s->fs);
}
static const AVFilterPad maskedmerge_inputs[] = {
{
.name = "base",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_input,
},
{
.name = "overlay",
.type = AVMEDIA_TYPE_VIDEO,
},
{
.name = "mask",
.type = AVMEDIA_TYPE_VIDEO,
},
{ NULL }
};
static const AVFilterPad maskedmerge_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
{ NULL }
};
AVFilter ff_vf_maskedmerge = {
.name = "maskedmerge",
.description = NULL_IF_CONFIG_SMALL("Merge first stream with second stream using third stream as mask."),
.priv_size = sizeof(MaskedMergeContext),
.uninit = uninit,
.query_formats = query_formats,
.activate = activate,
.inputs = maskedmerge_inputs,
.outputs = maskedmerge_outputs,
.priv_class = &maskedmerge_class,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
};
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