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FFmpeg/libavfilter/vf_mergeplanes.c
Andreas Rheinhardt 19af142d45 avfilter/internal: Don't include formats.h
internal.h doesn't rely on it; instead include it directly
in every user that needs it (a filter needing it is basically
equivalent to it using FILTER_QUERY_FUNC, i.e. a majority of
filters doesn't need it).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-08-07 09:21:13 +02:00

323 lines
11 KiB
C

/*
* Copyright (c) 2013 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/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "framesync.h"
#include "video.h"
typedef struct Mapping {
int input;
int plane;
} Mapping;
typedef struct InputParam {
int depth[4];
int nb_planes;
int planewidth[4];
int planeheight[4];
} InputParam;
typedef struct MergePlanesContext {
const AVClass *class;
int64_t mapping;
const enum AVPixelFormat out_fmt;
int nb_inputs;
int nb_planes;
int planewidth[4];
int planeheight[4];
Mapping map[4];
const AVPixFmtDescriptor *indesc[4];
const AVPixFmtDescriptor *outdesc;
FFFrameSync fs;
} MergePlanesContext;
#define OFFSET(x) offsetof(MergePlanesContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption mergeplanes_options[] = {
{ "mapping", "set input to output plane mapping", OFFSET(mapping), AV_OPT_TYPE_INT, {.i64=-1}, -1, 0x33333333, FLAGS|AV_OPT_FLAG_DEPRECATED },
{ "format", "set output pixel format", OFFSET(out_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_YUVA444P}, 0, INT_MAX, .flags=FLAGS },
{ "map0s", "set 1st input to output stream mapping", OFFSET(map[0].input), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map0p", "set 1st input to output plane mapping", OFFSET(map[0].plane), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map1s", "set 2nd input to output stream mapping", OFFSET(map[1].input), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map1p", "set 2nd input to output plane mapping", OFFSET(map[1].plane), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map2s", "set 3rd input to output stream mapping", OFFSET(map[2].input), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map2p", "set 3rd input to output plane mapping", OFFSET(map[2].plane), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map3s", "set 4th input to output stream mapping", OFFSET(map[3].input), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ "map3p", "set 4th input to output plane mapping", OFFSET(map[3].plane), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, FLAGS },
{ NULL }
};
AVFILTER_DEFINE_CLASS(mergeplanes);
static av_cold int init(AVFilterContext *ctx)
{
MergePlanesContext *s = ctx->priv;
int64_t m = s->mapping;
int i, ret;
s->outdesc = av_pix_fmt_desc_get(s->out_fmt);
if (!(s->outdesc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
s->outdesc->nb_components < 2) {
av_log(ctx, AV_LOG_ERROR, "Only planar formats with more than one component are supported.\n");
return AVERROR(EINVAL);
}
s->nb_planes = av_pix_fmt_count_planes(s->out_fmt);
for (i = s->nb_planes - 1; i >= 0; i--) {
if (m >= 0 && m <= 0x33333333) {
s->map[i].plane = m & 0xf;
m >>= 4;
s->map[i].input = m & 0xf;
m >>= 4;
}
if (s->map[i].plane > 3 || s->map[i].input > 3) {
av_log(ctx, AV_LOG_ERROR, "Mapping with out of range input and/or plane number.\n");
return AVERROR(EINVAL);
}
s->nb_inputs = FFMAX(s->nb_inputs, s->map[i].input + 1);
}
av_assert0(s->nb_inputs && s->nb_inputs <= 4);
for (i = 0; i < s->nb_inputs; i++) {
AVFilterPad pad = { 0 };
pad.type = AVMEDIA_TYPE_VIDEO;
pad.name = av_asprintf("in%d", i);
if (!pad.name)
return AVERROR(ENOMEM);
if ((ret = ff_append_inpad_free_name(ctx, &pad)) < 0)
return ret;
}
return 0;
}
static int query_formats(AVFilterContext *ctx)
{
MergePlanesContext *s = ctx->priv;
AVFilterFormats *formats = NULL;
int i, ret;
s->outdesc = av_pix_fmt_desc_get(s->out_fmt);
for (i = 0; av_pix_fmt_desc_get(i); i++) {
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
if (desc->comp[0].depth == s->outdesc->comp[0].depth &&
(desc->comp[0].depth <= 8 || (desc->flags & AV_PIX_FMT_FLAG_BE) == (s->outdesc->flags & AV_PIX_FMT_FLAG_BE)) &&
av_pix_fmt_count_planes(i) == desc->nb_components &&
(ret = ff_add_format(&formats, i)) < 0)
return ret;
}
for (i = 0; i < s->nb_inputs; i++)
if ((ret = ff_formats_ref(formats, &ctx->inputs[i]->outcfg.formats)) < 0)
return ret;
formats = NULL;
if ((ret = ff_add_format(&formats, s->out_fmt)) < 0 ||
(ret = ff_formats_ref(formats, &ctx->outputs[0]->incfg.formats)) < 0)
return ret;
return 0;
}
static int process_frame(FFFrameSync *fs)
{
AVFilterContext *ctx = fs->parent;
AVFilterLink *outlink = ctx->outputs[0];
MergePlanesContext *s = fs->opaque;
AVFrame *in[4] = { NULL };
AVFrame *out;
int i, ret;
for (i = 0; i < s->nb_inputs; i++) {
if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
return ret;
}
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out)
return AVERROR(ENOMEM);
out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
for (i = 0; i < s->nb_planes; i++) {
const int input = s->map[i].input;
const int plane = s->map[i].plane;
av_image_copy_plane(out->data[i], out->linesize[i],
in[input]->data[plane], in[input]->linesize[plane],
s->planewidth[i] * ((s->indesc[input]->comp[plane].depth + 7) / 8),
s->planeheight[i]);
}
return ff_filter_frame(outlink, out);
}
static int config_output(AVFilterLink *outlink)
{
AVFilterContext *ctx = outlink->src;
MergePlanesContext *s = ctx->priv;
InputParam inputsp[4];
FFFrameSyncIn *in;
int i, ret;
if ((ret = ff_framesync_init(&s->fs, ctx, s->nb_inputs)) < 0)
return ret;
in = s->fs.in;
s->fs.opaque = s;
s->fs.on_event = process_frame;
outlink->w = ctx->inputs[0]->w;
outlink->h = ctx->inputs[0]->h;
outlink->time_base = ctx->inputs[0]->time_base;
outlink->frame_rate = ctx->inputs[0]->frame_rate;
outlink->sample_aspect_ratio = ctx->inputs[0]->sample_aspect_ratio;
s->planewidth[1] =
s->planewidth[2] = AV_CEIL_RSHIFT(outlink->w, s->outdesc->log2_chroma_w);
s->planewidth[0] =
s->planewidth[3] = outlink->w;
s->planeheight[1] =
s->planeheight[2] = AV_CEIL_RSHIFT(outlink->h, s->outdesc->log2_chroma_h);
s->planeheight[0] =
s->planeheight[3] = outlink->h;
for (i = 0; i < s->nb_inputs; i++) {
InputParam *inputp = &inputsp[i];
AVFilterLink *inlink = ctx->inputs[i];
s->indesc[i] = av_pix_fmt_desc_get(inlink->format);
if (outlink->sample_aspect_ratio.num != inlink->sample_aspect_ratio.num ||
outlink->sample_aspect_ratio.den != inlink->sample_aspect_ratio.den) {
av_log(ctx, AV_LOG_ERROR, "input #%d link %s SAR %d:%d "
"does not match output link %s SAR %d:%d\n",
i, ctx->input_pads[i].name,
inlink->sample_aspect_ratio.num,
inlink->sample_aspect_ratio.den,
ctx->output_pads[0].name,
outlink->sample_aspect_ratio.num,
outlink->sample_aspect_ratio.den);
return AVERROR(EINVAL);
}
inputp->planewidth[1] =
inputp->planewidth[2] = AV_CEIL_RSHIFT(inlink->w, s->indesc[i]->log2_chroma_w);
inputp->planewidth[0] =
inputp->planewidth[3] = inlink->w;
inputp->planeheight[1] =
inputp->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, s->indesc[i]->log2_chroma_h);
inputp->planeheight[0] =
inputp->planeheight[3] = inlink->h;
inputp->nb_planes = av_pix_fmt_count_planes(inlink->format);
for (int j = 0; j < inputp->nb_planes; j++)
inputp->depth[j] = s->indesc[i]->comp[j].depth;
in[i].time_base = inlink->time_base;
in[i].sync = 1;
in[i].before = EXT_STOP;
in[i].after = EXT_STOP;
}
for (i = 0; i < s->nb_planes; i++) {
const int input = s->map[i].input;
const int plane = s->map[i].plane;
InputParam *inputp = &inputsp[input];
if (plane + 1 > inputp->nb_planes) {
av_log(ctx, AV_LOG_ERROR, "input %d does not have %d plane\n",
input, plane);
goto fail;
}
if (s->outdesc->comp[i].depth != inputp->depth[plane]) {
av_log(ctx, AV_LOG_ERROR, "output plane %d depth %d does not "
"match input %d plane %d depth %d\n",
i, s->outdesc->comp[i].depth,
input, plane, inputp->depth[plane]);
goto fail;
}
if (s->planewidth[i] != inputp->planewidth[plane]) {
av_log(ctx, AV_LOG_ERROR, "output plane %d width %d does not "
"match input %d plane %d width %d\n",
i, s->planewidth[i],
input, plane, inputp->planewidth[plane]);
goto fail;
}
if (s->planeheight[i] != inputp->planeheight[plane]) {
av_log(ctx, AV_LOG_ERROR, "output plane %d height %d does not "
"match input %d plane %d height %d\n",
i, s->planeheight[i],
input, plane, inputp->planeheight[plane]);
goto fail;
}
}
return ff_framesync_configure(&s->fs);
fail:
return AVERROR(EINVAL);
}
static int activate(AVFilterContext *ctx)
{
MergePlanesContext *s = ctx->priv;
return ff_framesync_activate(&s->fs);
}
static av_cold void uninit(AVFilterContext *ctx)
{
MergePlanesContext *s = ctx->priv;
ff_framesync_uninit(&s->fs);
}
static const AVFilterPad mergeplanes_outputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_output,
},
};
const AVFilter ff_vf_mergeplanes = {
.name = "mergeplanes",
.description = NULL_IF_CONFIG_SMALL("Merge planes."),
.priv_size = sizeof(MergePlanesContext),
.priv_class = &mergeplanes_class,
.init = init,
.uninit = uninit,
.activate = activate,
.inputs = NULL,
FILTER_OUTPUTS(mergeplanes_outputs),
FILTER_QUERY_FUNC(query_formats),
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
};