mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
19af142d45
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>
167 lines
5.2 KiB
C
167 lines
5.2 KiB
C
/*
|
|
* 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/avstring.h"
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/internal.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/pixdesc.h"
|
|
#include "libavutil/pixfmt.h"
|
|
|
|
#include "avfilter.h"
|
|
#include "formats.h"
|
|
#include "internal.h"
|
|
#include "video.h"
|
|
|
|
typedef struct ShufflePlanesContext {
|
|
const AVClass *class;
|
|
|
|
/* number of planes in the selected pixel format */
|
|
int planes;
|
|
|
|
/* mapping indices */
|
|
int map[4];
|
|
|
|
/* set to 1 if some plane is used more than once, so we need to make a copy */
|
|
int copy;
|
|
} ShufflePlanesContext;
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
AVFilterFormats *formats = NULL;
|
|
ShufflePlanesContext *s = ctx->priv;
|
|
int fmt, ret, i;
|
|
|
|
for (fmt = 0; av_pix_fmt_desc_get(fmt); fmt++) {
|
|
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(fmt);
|
|
int planes = av_pix_fmt_count_planes(fmt);
|
|
|
|
if (!(desc->flags & AV_PIX_FMT_FLAG_PAL) &&
|
|
!(desc->flags & AV_PIX_FMT_FLAG_HWACCEL)) {
|
|
for (i = 0; i < 4; i++) {
|
|
if (s->map[i] >= planes)
|
|
break;
|
|
|
|
if ((desc->log2_chroma_h || desc->log2_chroma_w) &&
|
|
(i == 1 || i == 2) != (s->map[i] == 1 || s->map[i] == 2))
|
|
break;
|
|
}
|
|
|
|
if (i != 4)
|
|
continue;
|
|
if ((ret = ff_add_format(&formats, fmt)) < 0) {
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
return ff_set_common_formats(ctx, formats);
|
|
}
|
|
|
|
static av_cold int shuffleplanes_config_input(AVFilterLink *inlink)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
ShufflePlanesContext *s = ctx->priv;
|
|
int used[4] = { 0 };
|
|
int i;
|
|
|
|
s->copy = 0;
|
|
s->planes = av_pix_fmt_count_planes(inlink->format);
|
|
|
|
for (i = 0; i < s->planes; i++) {
|
|
if (used[s->map[i]])
|
|
s->copy = 1;
|
|
used[s->map[i]]++;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int shuffleplanes_filter_frame(AVFilterLink *inlink, AVFrame *frame)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
ShufflePlanesContext *s = ctx->priv;
|
|
uint8_t *shuffled_data[4] = { NULL };
|
|
int shuffled_linesize[4] = { 0 };
|
|
int i, ret;
|
|
|
|
for (i = 0; i < s->planes; i++) {
|
|
shuffled_data[i] = frame->data[s->map[i]];
|
|
shuffled_linesize[i] = frame->linesize[s->map[i]];
|
|
}
|
|
memcpy(frame->data, shuffled_data, sizeof(shuffled_data));
|
|
memcpy(frame->linesize, shuffled_linesize, sizeof(shuffled_linesize));
|
|
|
|
if (s->copy) {
|
|
AVFrame *copy = ff_get_video_buffer(ctx->outputs[0], frame->width, frame->height);
|
|
|
|
if (!copy) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
av_frame_copy(copy, frame);
|
|
|
|
ret = av_frame_copy_props(copy, frame);
|
|
if (ret < 0) {
|
|
av_frame_free(©);
|
|
goto fail;
|
|
}
|
|
|
|
av_frame_free(&frame);
|
|
frame = copy;
|
|
}
|
|
|
|
return ff_filter_frame(ctx->outputs[0], frame);
|
|
fail:
|
|
av_frame_free(&frame);
|
|
return ret;
|
|
}
|
|
|
|
#define OFFSET(x) offsetof(ShufflePlanesContext, x)
|
|
#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM)
|
|
static const AVOption shuffleplanes_options[] = {
|
|
{ "map0", "Index of the input plane to be used as the first output plane ", OFFSET(map[0]), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 3, FLAGS },
|
|
{ "map1", "Index of the input plane to be used as the second output plane ", OFFSET(map[1]), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 3, FLAGS },
|
|
{ "map2", "Index of the input plane to be used as the third output plane ", OFFSET(map[2]), AV_OPT_TYPE_INT, { .i64 = 2 }, 0, 3, FLAGS },
|
|
{ "map3", "Index of the input plane to be used as the fourth output plane ", OFFSET(map[3]), AV_OPT_TYPE_INT, { .i64 = 3 }, 0, 3, FLAGS },
|
|
{ NULL },
|
|
};
|
|
|
|
AVFILTER_DEFINE_CLASS(shuffleplanes);
|
|
|
|
static const AVFilterPad shuffleplanes_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = shuffleplanes_config_input,
|
|
.filter_frame = shuffleplanes_filter_frame,
|
|
},
|
|
};
|
|
|
|
const AVFilter ff_vf_shuffleplanes = {
|
|
.name = "shuffleplanes",
|
|
.description = NULL_IF_CONFIG_SMALL("Shuffle video planes."),
|
|
.priv_size = sizeof(ShufflePlanesContext),
|
|
.priv_class = &shuffleplanes_class,
|
|
FILTER_INPUTS(shuffleplanes_inputs),
|
|
FILTER_OUTPUTS(ff_video_default_filterpad),
|
|
FILTER_QUERY_FUNC(query_formats),
|
|
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
|
|
};
|