mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-28 20:53:54 +02:00
21f9468402
Libav, for some reason, merged this as a public API function. This will aid in future merges. A define is left for backwards compat, just in case some person used it, since it is in a public header. Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
318 lines
10 KiB
C
318 lines
10 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 "internal.h"
|
|
#include "framesync.h"
|
|
|
|
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];
|
|
int map[4][2];
|
|
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=0}, 0, 0x33333333, FLAGS },
|
|
{ "format", "set output pixel format", OFFSET(out_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_YUVA444P}, 0, INT_MAX, .flags=FLAGS },
|
|
{ NULL }
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(mergeplanes);
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
|
|
{
|
|
MergePlanesContext *s = inlink->dst->priv;
|
|
return ff_framesync_filter_frame(&s->fs, inlink, in);
|
|
}
|
|
|
|
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--) {
|
|
s->map[i][0] = m & 0xf;
|
|
m >>= 4;
|
|
s->map[i][1] = m & 0xf;
|
|
m >>= 4;
|
|
|
|
if (s->map[i][0] > 3 || s->map[i][1] > 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][1] + 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);
|
|
pad.filter_frame = filter_frame;
|
|
|
|
if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0){
|
|
av_freep(&pad.name);
|
|
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 &&
|
|
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]->out_formats)) < 0)
|
|
return ret;
|
|
|
|
formats = NULL;
|
|
if ((ret = ff_add_format(&formats, s->out_fmt)) < 0 ||
|
|
(ret = ff_formats_ref(formats, &ctx->outputs[0]->in_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][1];
|
|
const int plane = s->map[i][0];
|
|
|
|
av_image_copy_plane(out->data[i], out->linesize[i],
|
|
in[input]->data[plane], in[input]->linesize[plane],
|
|
s->planewidth[i], 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];
|
|
const AVPixFmtDescriptor *indesc = av_pix_fmt_desc_get(inlink->format);
|
|
int j;
|
|
|
|
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, indesc->log2_chroma_w);
|
|
inputp->planewidth[0] =
|
|
inputp->planewidth[3] = inlink->w;
|
|
inputp->planeheight[1] =
|
|
inputp->planeheight[2] = AV_CEIL_RSHIFT(inlink->h, indesc->log2_chroma_h);
|
|
inputp->planeheight[0] =
|
|
inputp->planeheight[3] = inlink->h;
|
|
inputp->nb_planes = av_pix_fmt_count_planes(inlink->format);
|
|
|
|
for (j = 0; j < inputp->nb_planes; j++)
|
|
inputp->depth[j] = indesc->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][1];
|
|
const int plane = s->map[i][0];
|
|
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 request_frame(AVFilterLink *outlink)
|
|
{
|
|
MergePlanesContext *s = outlink->src->priv;
|
|
return ff_framesync_request_frame(&s->fs, outlink);
|
|
}
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
MergePlanesContext *s = ctx->priv;
|
|
int i;
|
|
|
|
ff_framesync_uninit(&s->fs);
|
|
|
|
for (i = 0; i < ctx->nb_inputs; i++)
|
|
av_freep(&ctx->input_pads[i].name);
|
|
}
|
|
|
|
static const AVFilterPad mergeplanes_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
.request_frame = request_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
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,
|
|
.query_formats = query_formats,
|
|
.inputs = NULL,
|
|
.outputs = mergeplanes_outputs,
|
|
.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
|
|
};
|