369 lines
13 KiB
C
369 lines
13 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "libavutil/common.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/opt.h"
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#include "libavutil/pixdesc.h"
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#include "avfilter.h"
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#include "drawutils.h"
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#include "internal.h"
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#include "video.h"
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#define COMP_R 0x01
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#define COMP_G 0x02
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#define COMP_B 0x04
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#define COMP_A 0x08
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#define COMP_Y 0x10
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#define COMP_U 0x20
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#define COMP_V 0x40
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typedef struct ThreadData {
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AVFrame *in;
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AVFrame *out;
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} ThreadData;
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typedef struct NegateContext {
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const AVClass *class;
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int negate_alpha;
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int max;
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int requested_components;
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int components;
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int planes;
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int step;
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int nb_planes;
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int linesize[4];
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int width[4];
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int height[4];
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uint8_t rgba_map[4];
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void (*negate)(const uint8_t *src, uint8_t *dst,
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ptrdiff_t slinesize, ptrdiff_t dlinesize,
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int w, int h, int max, int step,
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int components);
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} NegateContext;
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#define OFFSET(x) offsetof(NegateContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
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static const AVOption negate_options[] = {
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{ "components", "set components to negate", OFFSET(requested_components), AV_OPT_TYPE_FLAGS, {.i64=0x77}, 1, 0xff, FLAGS, .unit = "flags"},
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{ "y", "set luma component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_Y}, 0, 0, FLAGS, .unit = "flags"},
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{ "u", "set u component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_U}, 0, 0, FLAGS, .unit = "flags"},
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{ "v", "set v component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_V}, 0, 0, FLAGS, .unit = "flags"},
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{ "r", "set red component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_R}, 0, 0, FLAGS, .unit = "flags"},
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{ "g", "set green component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_G}, 0, 0, FLAGS, .unit = "flags"},
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{ "b", "set blue component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_B}, 0, 0, FLAGS, .unit = "flags"},
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{ "a", "set alpha component", 0, AV_OPT_TYPE_CONST, {.i64=COMP_A}, 0, 0, FLAGS, .unit = "flags"},
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{ "negate_alpha", NULL, OFFSET(negate_alpha), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(negate);
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static const enum AVPixelFormat pix_fmts[] = {
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA444P,
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AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVJ440P,
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AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV420P9,
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AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV440P10,
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AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV440P12,
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AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
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AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV420P16,
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AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA420P10,
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AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA422P12,
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AV_PIX_FMT_YUVA444P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA420P16,
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AV_PIX_FMT_ARGB, AV_PIX_FMT_RGBA,
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AV_PIX_FMT_ABGR, AV_PIX_FMT_BGRA,
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AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24,
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AV_PIX_FMT_RGB48, AV_PIX_FMT_RGBA64,
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AV_PIX_FMT_BGR48, AV_PIX_FMT_BGRA64,
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
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AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP14,
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AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14,
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AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP12,
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AV_PIX_FMT_GBRAP16,
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AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10,
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AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
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AV_PIX_FMT_NONE
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};
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static void negate8(const uint8_t *src, uint8_t *dst,
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ptrdiff_t slinesize, ptrdiff_t dlinesize,
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int w, int h, int max, int step,
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int components)
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{
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++)
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dst[x] = 255 - src[x];
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dst += dlinesize;
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src += slinesize;
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}
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}
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static void negate_packed8(const uint8_t *ssrc, uint8_t *ddst,
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ptrdiff_t slinesize, ptrdiff_t dlinesize,
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int w, int h, int max, int step,
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int components)
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{
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for (int y = 0; y < h; y++) {
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const uint8_t *src = ssrc + y * slinesize;
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uint8_t *dst = ddst + y * dlinesize;
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for (int x = 0; x < w; x++) {
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switch (step) {
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case 4: dst[3] = components & 8 ? 255 - src[3] : src[3];
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case 3: dst[2] = components & 4 ? 255 - src[2] : src[2];
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case 2: dst[1] = components & 2 ? 255 - src[1] : src[1];
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default: dst[0] = components & 1 ? 255 - src[0] : src[0];
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}
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src += step;
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dst += step;
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}
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}
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}
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static void negate16(const uint8_t *ssrc, uint8_t *ddst,
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ptrdiff_t slinesize, ptrdiff_t dlinesize,
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int w, int h, int max, int step,
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int components)
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{
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const uint16_t *src = (const uint16_t *)ssrc;
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uint16_t *dst = (uint16_t *)ddst;
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dlinesize /= 2;
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slinesize /= 2;
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++)
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dst[x] = max - src[x];
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dst += dlinesize;
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src += slinesize;
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}
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}
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static void negate_packed16(const uint8_t *ssrc, uint8_t *ddst,
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ptrdiff_t slinesize, ptrdiff_t dlinesize,
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int w, int h, int max, int step,
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int components)
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{
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for (int y = 0; y < h; y++) {
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const uint16_t *src = (const uint16_t *)(ssrc + y * slinesize);
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uint16_t *dst = (uint16_t *)(ddst + y * dlinesize);
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for (int x = 0; x < w; x++) {
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switch (step) {
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case 4: dst[3] = components & 8 ? max - src[3] : src[3];
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case 3: dst[2] = components & 4 ? max - src[2] : src[2];
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case 2: dst[1] = components & 2 ? max - src[1] : src[1];
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default: dst[0] = components & 1 ? max - src[0] : src[0];
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}
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src += step;
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dst += step;
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}
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}
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}
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static int config_input(AVFilterLink *inlink)
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{
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AVFilterContext *ctx = inlink->dst;
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NegateContext *s = ctx->priv;
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
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int depth, vsub, hsub, ret, is_packed;
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int comp_avail;
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s->planes = s->negate_alpha ? 0xF : 0x7;
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is_packed = !(desc->flags & AV_PIX_FMT_FLAG_PLANAR) &&
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(desc->nb_components > 1);
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if (s->requested_components != 0x77) {
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comp_avail = ((desc->flags & AV_PIX_FMT_FLAG_RGB) ? COMP_R|COMP_G|COMP_B :
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COMP_Y |
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((desc->nb_components > 2) ? COMP_U|COMP_V : 0)) |
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((desc->flags & AV_PIX_FMT_FLAG_ALPHA) ? COMP_A : 0);
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if (s->requested_components & ~comp_avail) {
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av_log(ctx, AV_LOG_ERROR, "Requested components not available.\n");
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return AVERROR(EINVAL);
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}
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s->planes = 0;
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if (!(desc->flags & AV_PIX_FMT_FLAG_RGB)) {
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if (s->requested_components & COMP_Y)
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s->planes |= 1;
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if (s->requested_components & COMP_U)
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s->planes |= 2;
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if (s->requested_components & COMP_V)
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s->planes |= 4;
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if (s->requested_components & COMP_A)
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s->planes |= 8;
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} else {
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if (s->requested_components & COMP_R)
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s->planes |= 4;
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if (s->requested_components & COMP_G)
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s->planes |= 1;
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if (s->requested_components & COMP_B)
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s->planes |= 2;
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if (s->requested_components & COMP_A)
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s->planes |= 8;
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}
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}
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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s->components = 0;
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if (desc->flags & AV_PIX_FMT_FLAG_RGB) {
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ff_fill_rgba_map(s->rgba_map, inlink->format);
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if (s->requested_components & COMP_R)
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s->components |= 1 << s->rgba_map[0];
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if (s->requested_components & COMP_G)
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s->components |= 1 << s->rgba_map[1];
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if (s->requested_components & COMP_B)
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s->components |= 1 << s->rgba_map[2];
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if (s->requested_components & COMP_A)
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s->components |= 1 << s->rgba_map[3];
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}
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if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
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return ret;
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depth = desc->comp[0].depth;
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hsub = desc->log2_chroma_w;
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vsub = desc->log2_chroma_h;
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s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
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s->height[0] = s->height[3] = inlink->h;
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s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
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s->width[0] = s->width[3] = inlink->w;
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s->negate = depth <= 8 ? negate8 : negate16;
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if (is_packed) {
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s->negate = depth <= 8 ? negate_packed8 : negate_packed16;
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s->planes = 1;
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}
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s->max = (1 << depth) - 1;
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s->step = av_get_bits_per_pixel(desc) >> 3;
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if (depth > 8)
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s->step = s->step >> 1;
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return 0;
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}
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static int filter_slice(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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NegateContext *s = ctx->priv;
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ThreadData *td = arg;
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AVFrame *in = td->in;
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AVFrame *out = td->out;
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for (int p = 0; p < s->nb_planes; p++) {
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const int h = s->height[p];
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const int slice_start = (h * jobnr) / nb_jobs;
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const int slice_end = (h * (jobnr+1)) / nb_jobs;
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if (!((1 << p) & s->planes)) {
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if (out != in)
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av_image_copy_plane(out->data[p] + slice_start * out->linesize[p],
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out->linesize[p],
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in->data[p] + slice_start * in->linesize[p],
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in->linesize[p],
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s->linesize[p], slice_end - slice_start);
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continue;
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}
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s->negate(in->data[p] + slice_start * in->linesize[p],
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out->data[p] + slice_start * out->linesize[p],
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in->linesize[p], out->linesize[p],
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s->width[p], slice_end - slice_start,
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s->max, s->step, s->components);
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}
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return 0;
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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{
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AVFilterContext *ctx = inlink->dst;
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NegateContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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ThreadData td;
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AVFrame *out;
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if (av_frame_is_writable(in)) {
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out = in;
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} else {
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out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
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if (!out) {
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av_frame_free(&in);
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return AVERROR(ENOMEM);
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}
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av_frame_copy_props(out, in);
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}
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td.out = out;
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td.in = in;
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ff_filter_execute(ctx, filter_slice, &td, NULL,
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FFMIN(s->height[2], ff_filter_get_nb_threads(ctx)));
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if (out != in)
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av_frame_free(&in);
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return ff_filter_frame(outlink, out);
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}
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static int process_command(AVFilterContext *ctx, const char *cmd, const char *args,
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char *res, int res_len, int flags)
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{
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NegateContext *s = ctx->priv;
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int old_planes = s->planes;
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int ret;
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ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags);
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if (ret < 0)
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return ret;
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ret = config_input(ctx->inputs[0]);
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if (ret < 0)
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s->planes = old_planes;
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return ret;
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}
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static const AVFilterPad inputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.filter_frame = filter_frame,
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.config_props = config_input,
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},
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};
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const AVFilter ff_vf_negate = {
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.name = "negate",
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.description = NULL_IF_CONFIG_SMALL("Negate input video."),
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.priv_size = sizeof(NegateContext),
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.priv_class = &negate_class,
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FILTER_INPUTS(inputs),
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FILTER_OUTPUTS(ff_video_default_filterpad),
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FILTER_PIXFMTS_ARRAY(pix_fmts),
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.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
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.process_command = process_command,
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};
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