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FFmpeg/libavfilter/vf_chromashift.c

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avfilter: add chromashift filter
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/*
* Copyright (c) 2018 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/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
typedef struct ChromaShiftContext {
const AVClass *class;
int cbh, cbv;
int crh, crv;
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int rh, rv;
int gh, gv;
int bh, bv;
int ah, av;
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int edge;
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int nb_planes;
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int depth;
int height[4];
int width[4];
int linesize[4];
AVFrame *in;
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int is_rgbashift;
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int (*filter_slice[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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} ChromaShiftContext;
#define DEFINE_SMEAR(depth, type, div) \
static int smear_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
{ \
ChromaShiftContext *s = ctx->priv; \
AVFrame *in = s->in; \
AVFrame *out = arg; \
const int sulinesize = in->linesize[1] / div; \
const int svlinesize = in->linesize[2] / div; \
const int ulinesize = out->linesize[1] / div; \
const int vlinesize = out->linesize[2] / div; \
const int cbh = s->cbh; \
const int cbv = s->cbv; \
const int crh = s->crh; \
const int crv = s->crv; \
const int h = s->height[1]; \
const int w = s->width[1]; \
const int slice_start = (h * jobnr) / nb_jobs; \
const int slice_end = (h * (jobnr+1)) / nb_jobs; \
const type *su = (const type *)in->data[1]; \
const type *sv = (const type *)in->data[2]; \
type *du = (type *)out->data[1] + slice_start * ulinesize; \
type *dv = (type *)out->data[2] + slice_start * vlinesize; \
\
for (int y = slice_start; y < slice_end; y++) { \
const int duy = av_clip(y - cbv, 0, h-1) * sulinesize; \
const int dvy = av_clip(y - crv, 0, h-1) * svlinesize; \
\
for (int x = 0; x < w; x++) { \
du[x] = su[av_clip(x - cbh, 0, w - 1) + duy]; \
dv[x] = sv[av_clip(x - crh, 0, w - 1) + dvy]; \
} \
\
du += ulinesize; \
dv += vlinesize; \
} \
\
return 0; \
}
DEFINE_SMEAR(8, uint8_t, 1)
DEFINE_SMEAR(16, uint16_t, 2)
#define DEFINE_WRAP(depth, type, div) \
static int wrap_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
{ \
ChromaShiftContext *s = ctx->priv; \
AVFrame *in = s->in; \
AVFrame *out = arg; \
const int sulinesize = in->linesize[1] / div; \
const int svlinesize = in->linesize[2] / div; \
const int ulinesize = out->linesize[1] / div; \
const int vlinesize = out->linesize[2] / div; \
const int cbh = s->cbh; \
const int cbv = s->cbv; \
const int crh = s->crh; \
const int crv = s->crv; \
const int h = s->height[1]; \
const int w = s->width[1]; \
const int slice_start = (h * jobnr) / nb_jobs; \
const int slice_end = (h * (jobnr+1)) / nb_jobs; \
const type *su = (const type *)in->data[1]; \
const type *sv = (const type *)in->data[2]; \
type *du = (type *)out->data[1] + slice_start * ulinesize; \
type *dv = (type *)out->data[2] + slice_start * vlinesize; \
\
for (int y = slice_start; y < slice_end; y++) { \
int uy = (y - cbv) % h; \
int vy = (y - crv) % h; \
\
if (uy < 0) \
uy += h; \
if (vy < 0) \
vy += h; \
\
for (int x = 0; x < w; x++) { \
int ux = (x - cbh) % w; \
int vx = (x - crh) % w; \
\
if (ux < 0) \
ux += w; \
if (vx < 0) \
vx += w; \
\
du[x] = su[ux + uy * sulinesize]; \
dv[x] = sv[vx + vy * svlinesize]; \
} \
\
du += ulinesize; \
dv += vlinesize; \
} \
\
return 0; \
}
DEFINE_WRAP(8, uint8_t, 1)
DEFINE_WRAP(16, uint16_t, 2)
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#define DEFINE_RGBASMEAR(depth, type, div) \
static int rgbasmear_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
{ \
ChromaShiftContext *s = ctx->priv; \
AVFrame *in = s->in; \
AVFrame *out = arg; \
const int srlinesize = in->linesize[2] / div; \
const int sglinesize = in->linesize[0] / div; \
const int sblinesize = in->linesize[1] / div; \
const int salinesize = in->linesize[3] / div; \
const int rlinesize = out->linesize[2] / div; \
const int glinesize = out->linesize[0] / div; \
const int blinesize = out->linesize[1] / div; \
const int alinesize = out->linesize[3] / div; \
const int rh = s->rh; \
const int rv = s->rv; \
const int gh = s->gh; \
const int gv = s->gv; \
const int bh = s->bh; \
const int bv = s->bv; \
const int ah = s->ah; \
const int av = s->av; \
const int h = s->height[1]; \
const int w = s->width[1]; \
const int slice_start = (h * jobnr) / nb_jobs; \
const int slice_end = (h * (jobnr+1)) / nb_jobs; \
const type *sr = (const type *)in->data[2]; \
const type *sg = (const type *)in->data[0]; \
const type *sb = (const type *)in->data[1]; \
const type *sa = (const type *)in->data[3]; \
type *dr = (type *)out->data[2] + slice_start * rlinesize; \
type *dg = (type *)out->data[0] + slice_start * glinesize; \
type *db = (type *)out->data[1] + slice_start * blinesize; \
type *da = (type *)out->data[3] + slice_start * alinesize; \
\
for (int y = slice_start; y < slice_end; y++) { \
const int ry = av_clip(y - rv, 0, h-1) * srlinesize; \
const int gy = av_clip(y - gv, 0, h-1) * sglinesize; \
const int by = av_clip(y - bv, 0, h-1) * sblinesize; \
int ay; \
\
for (int x = 0; x < w; x++) { \
dr[x] = sr[av_clip(x - rh, 0, w - 1) + ry]; \
dg[x] = sg[av_clip(x - gh, 0, w - 1) + gy]; \
db[x] = sb[av_clip(x - bh, 0, w - 1) + by]; \
} \
\
dr += rlinesize; \
dg += glinesize; \
db += blinesize; \
\
if (s->nb_planes < 4) \
continue; \
ay = av_clip(y - av, 0, h-1) * salinesize; \
for (int x = 0; x < w; x++) { \
da[x] = sa[av_clip(x - ah, 0, w - 1) + ay]; \
} \
\
da += alinesize; \
} \
\
return 0; \
}
DEFINE_RGBASMEAR(8, uint8_t, 1)
DEFINE_RGBASMEAR(16, uint16_t, 2)
#define DEFINE_RGBAWRAP(depth, type, div) \
static int rgbawrap_slice ## depth(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
{ \
ChromaShiftContext *s = ctx->priv; \
AVFrame *in = s->in; \
AVFrame *out = arg; \
const int srlinesize = in->linesize[2] / div; \
const int sglinesize = in->linesize[0] / div; \
const int sblinesize = in->linesize[1] / div; \
const int salinesize = in->linesize[3] / div; \
const int rlinesize = out->linesize[2] / div; \
const int glinesize = out->linesize[0] / div; \
const int blinesize = out->linesize[1] / div; \
const int alinesize = out->linesize[3] / div; \
const int rh = s->rh; \
const int rv = s->rv; \
const int gh = s->gh; \
const int gv = s->gv; \
const int bh = s->bh; \
const int bv = s->bv; \
const int ah = s->ah; \
const int av = s->av; \
const int h = s->height[1]; \
const int w = s->width[1]; \
const int slice_start = (h * jobnr) / nb_jobs; \
const int slice_end = (h * (jobnr+1)) / nb_jobs; \
const type *sr = (const type *)in->data[2]; \
const type *sg = (const type *)in->data[0]; \
const type *sb = (const type *)in->data[1]; \
const type *sa = (const type *)in->data[3]; \
type *dr = (type *)out->data[2] + slice_start * rlinesize; \
type *dg = (type *)out->data[0] + slice_start * glinesize; \
type *db = (type *)out->data[1] + slice_start * blinesize; \
type *da = (type *)out->data[3] + slice_start * alinesize; \
\
for (int y = slice_start; y < slice_end; y++) { \
int ry = (y - rv) % h; \
int gy = (y - gv) % h; \
int by = (y - bv) % h; \
\
if (ry < 0) \
ry += h; \
if (gy < 0) \
gy += h; \
if (by < 0) \
by += h; \
\
for (int x = 0; x < w; x++) { \
int rx = (x - rh) % w; \
int gx = (x - gh) % w; \
int bx = (x - bh) % w; \
\
if (rx < 0) \
rx += w; \
if (gx < 0) \
gx += w; \
if (bx < 0) \
bx += w; \
dr[x] = sr[rx + ry * srlinesize]; \
dg[x] = sg[gx + gy * sglinesize]; \
db[x] = sb[bx + by * sblinesize]; \
} \
\
dr += rlinesize; \
dg += glinesize; \
db += blinesize; \
\
if (s->nb_planes < 4) \
continue; \
for (int x = 0; x < w; x++) { \
int ax = (x - ah) % w; \
int ay = (x - av) % h; \
\
if (ax < 0) \
ax += w; \
if (ay < 0) \
ay += h; \
da[x] = sa[ax + ay * salinesize]; \
} \
\
da += alinesize; \
} \
\
return 0; \
}
DEFINE_RGBAWRAP(8, uint8_t, 1)
DEFINE_RGBAWRAP(16, uint16_t, 2)
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
AVFilterContext *ctx = inlink->dst;
AVFilterLink *outlink = ctx->outputs[0];
ChromaShiftContext *s = ctx->priv;
AVFrame *out;
out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
if (!out) {
av_frame_free(&in);
return AVERROR(ENOMEM);
}
av_frame_copy_props(out, in);
s->in = in;
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if (!s->is_rgbashift) {
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av_image_copy_plane(out->data[0],
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out->linesize[0],
in->data[0], in->linesize[0],
s->linesize[0], s->height[0]);
}
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ff_filter_execute(ctx, s->filter_slice[s->edge], out, NULL,
avfilter/internal: Factor out executing a filter's execute_func The current way of doing it involves writing the ctx parameter twice. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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FFMIN3(s->height[1],
s->height[2],
ff_filter_get_nb_threads(ctx)));
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s->in = NULL;
av_frame_free(&in);
return ff_filter_frame(outlink, out);
}
static int config_input(AVFilterLink *inlink)
{
AVFilterContext *ctx = inlink->dst;
ChromaShiftContext *s = ctx->priv;
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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s->is_rgbashift = !strcmp(ctx->filter->name, "rgbashift");
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s->depth = desc->comp[0].depth;
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s->nb_planes = desc->nb_components;
if (s->is_rgbashift) {
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s->filter_slice[1] = s->depth > 8 ? rgbawrap_slice16 : rgbawrap_slice8;
s->filter_slice[0] = s->depth > 8 ? rgbasmear_slice16 : rgbasmear_slice8;
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} else {
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s->filter_slice[1] = s->depth > 8 ? wrap_slice16 : wrap_slice8;
s->filter_slice[0] = s->depth > 8 ? smear_slice16 : smear_slice8;
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}
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s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, desc->log2_chroma_h);
s->height[0] = s->height[3] = inlink->h;
s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, desc->log2_chroma_w);
s->width[0] = s->width[3] = inlink->w;
return av_image_fill_linesizes(s->linesize, inlink->format, inlink->w);
}
#define OFFSET(x) offsetof(ChromaShiftContext, x)
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#define VFR AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_RUNTIME_PARAM
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static const AVOption chromashift_options[] = {
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{ "cbh", "shift chroma-blue horizontally", OFFSET(cbh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "cbv", "shift chroma-blue vertically", OFFSET(cbv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "crh", "shift chroma-red horizontally", OFFSET(crh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "crv", "shift chroma-red vertically", OFFSET(crv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
all: use designated initializers for AVOption.unit Makes it robust against adding fields before it, which will be useful in following commits. Majority of the patch generated by the following Coccinelle script: @@ typedef AVOption; identifier arr_name; initializer list il; initializer list[8] il1; expression tail; @@ AVOption arr_name[] = { il, { il1, - tail + .unit = tail }, ... }; with some manual changes, as the script: * has trouble with options defined inside macros * sometimes does not handle options under an #else branch * sometimes swallows whitespace
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{ "edge", "set edge operation", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = VFR, .unit = "edge" },
{ "smear", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, .flags = VFR, .unit = "edge" },
{ "wrap", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, .flags = VFR, .unit = "edge" },
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{ NULL },
};
static const AVFilterPad inputs[] = {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.filter_frame = filter_frame,
.config_props = config_input,
},
};
avfilter: Reindentation after query_formats changes Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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static const enum AVPixelFormat yuv_pix_fmts[] = {
AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ422P,AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ411P,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P, 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_YUV440P10,
AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
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_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
AV_PIX_FMT_NONE
};
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AVFILTER_DEFINE_CLASS(chromashift);
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const AVFilter ff_vf_chromashift = {
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.name = "chromashift",
.description = NULL_IF_CONFIG_SMALL("Shift chroma."),
.priv_size = sizeof(ChromaShiftContext),
.priv_class = &chromashift_class,
avfilter: Deduplicate default video inputs/outputs Lots of video filters use a very simple input or output: An array with a single AVFilterPad whose name is "default" and whose type is AVMEDIA_TYPE_VIDEO; everything else is unset. Given that we never use pointer equality for inputs or outputs*, we can simply use a single AVFilterPad instead of dozens; this even saves .data.rel.ro (8312B here) as well as relocations. *: In fact, several filters (like the filters in vf_lut.c) already use the same outputs; furthermore, ff_filter_alloc() duplicates the input and output pads so that we do not even work with the pads directly. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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FILTER_OUTPUTS(ff_video_default_filterpad),
avfilter/avfilter: Add numbers of (in|out)pads directly to AVFilter Up until now, an AVFilter's lists of input and output AVFilterPads were terminated by a sentinel and the only way to get the length of these lists was by using avfilter_pad_count(). This has two drawbacks: first, sizeof(AVFilterPad) is not negligible (i.e. 64B on 64bit systems); second, getting the size involves a function call instead of just reading the data. This commit therefore changes this. The sentinels are removed and new private fields nb_inputs and nb_outputs are added to AVFilter that contain the number of elements of the respective AVFilterPad array. Given that AVFilter.(in|out)puts are the only arrays of zero-terminated AVFilterPads an API user has access to (AVFilterContext.(in|out)put_pads are not zero-terminated and they already have a size field) the argument to avfilter_pad_count() is always one of these lists, so it just has to find the filter the list belongs to and read said number. This is slower than before, but a replacement function that just reads the internal numbers that users are expected to switch to will be added soon; and furthermore, avfilter_pad_count() is probably never called in hot loops anyway. This saves about 49KiB from the binary; notice that these sentinels are not in .bss despite being zeroed: they are in .data.rel.ro due to the non-sentinels. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-08-12 13:05:31 +02:00
FILTER_INPUTS(inputs),
avfilter/vf_chromashift: Use formats list instead of query function In this case it also allows to avoid a runtime check to which filter an AVFilterContext belongs to. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-27 16:42:25 +02:00
FILTER_PIXFMTS_ARRAY(yuv_pix_fmts),
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
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.process_command = ff_filter_process_command,
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};
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avfilter: Reindentation after query_formats changes Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
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static const enum AVPixelFormat rgb_pix_fmts[] = {
AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRP9,
AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRP12,
AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
AV_PIX_FMT_NONE
};
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static const AVOption rgbashift_options[] = {
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{ "rh", "shift red horizontally", OFFSET(rh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "rv", "shift red vertically", OFFSET(rv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "gh", "shift green horizontally", OFFSET(gh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "gv", "shift green vertically", OFFSET(gv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "bh", "shift blue horizontally", OFFSET(bh), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "bv", "shift blue vertically", OFFSET(bv), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "ah", "shift alpha horizontally", OFFSET(ah), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
{ "av", "shift alpha vertically", OFFSET(av), AV_OPT_TYPE_INT, {.i64=0}, -255, 255, .flags = VFR },
all: use designated initializers for AVOption.unit Makes it robust against adding fields before it, which will be useful in following commits. Majority of the patch generated by the following Coccinelle script: @@ typedef AVOption; identifier arr_name; initializer list il; initializer list[8] il1; expression tail; @@ AVOption arr_name[] = { il, { il1, - tail + .unit = tail }, ... }; with some manual changes, as the script: * has trouble with options defined inside macros * sometimes does not handle options under an #else branch * sometimes swallows whitespace
2024-02-11 16:41:05 +02:00
{ "edge", "set edge operation", OFFSET(edge), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, .flags = VFR, .unit = "edge" },
{ "smear", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, .flags = VFR, .unit = "edge" },
{ "wrap", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, .flags = VFR, .unit = "edge" },
avfilter: add rgbashift filter
2018-11-18 14:03:03 +02:00
{ NULL },
};
AVFILTER_DEFINE_CLASS(rgbashift);
avfilter: Constify all AVFilters This is possible now that the next-API is gone. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com> Signed-off-by: James Almer <jamrial@gmail.com>
2021-04-19 18:33:56 +02:00
const AVFilter ff_vf_rgbashift = {
avfilter: add rgbashift filter
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.name = "rgbashift",
.description = NULL_IF_CONFIG_SMALL("Shift RGBA."),
.priv_size = sizeof(ChromaShiftContext),
.priv_class = &rgbashift_class,
avfilter: Deduplicate default video inputs/outputs Lots of video filters use a very simple input or output: An array with a single AVFilterPad whose name is "default" and whose type is AVMEDIA_TYPE_VIDEO; everything else is unset. Given that we never use pointer equality for inputs or outputs*, we can simply use a single AVFilterPad instead of dozens; this even saves .data.rel.ro (8312B here) as well as relocations. *: In fact, several filters (like the filters in vf_lut.c) already use the same outputs; furthermore, ff_filter_alloc() duplicates the input and output pads so that we do not even work with the pads directly. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2023-08-03 14:37:51 +02:00
FILTER_OUTPUTS(ff_video_default_filterpad),
avfilter/avfilter: Add numbers of (in|out)pads directly to AVFilter Up until now, an AVFilter's lists of input and output AVFilterPads were terminated by a sentinel and the only way to get the length of these lists was by using avfilter_pad_count(). This has two drawbacks: first, sizeof(AVFilterPad) is not negligible (i.e. 64B on 64bit systems); second, getting the size involves a function call instead of just reading the data. This commit therefore changes this. The sentinels are removed and new private fields nb_inputs and nb_outputs are added to AVFilter that contain the number of elements of the respective AVFilterPad array. Given that AVFilter.(in|out)puts are the only arrays of zero-terminated AVFilterPads an API user has access to (AVFilterContext.(in|out)put_pads are not zero-terminated and they already have a size field) the argument to avfilter_pad_count() is always one of these lists, so it just has to find the filter the list belongs to and read said number. This is slower than before, but a replacement function that just reads the internal numbers that users are expected to switch to will be added soon; and furthermore, avfilter_pad_count() is probably never called in hot loops anyway. This saves about 49KiB from the binary; notice that these sentinels are not in .bss despite being zeroed: they are in .data.rel.ro due to the non-sentinels. Reviewed-by: Nicolas George <george@nsup.org> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-08-12 13:05:31 +02:00
FILTER_INPUTS(inputs),
avfilter/vf_chromashift: Use formats list instead of query function In this case it also allows to avoid a runtime check to which filter an AVFilterContext belongs to. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2021-09-27 16:42:25 +02:00
FILTER_PIXFMTS_ARRAY(rgb_pix_fmts),
avfilter: add rgbashift filter
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
avfilter/vf_chromashift: simplify handling of commands
2022-04-13 09:28:26 +02:00
.process_command = ff_filter_process_command,
avfilter: add rgbashift filter
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};
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