| /* |
| * 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 <float.h> |
| |
| #include "libavutil/opt.h" |
| #include "libavutil/pixdesc.h" |
| #include "avfilter.h" |
| #include "drawutils.h" |
| #include "formats.h" |
| #include "internal.h" |
| #include "video.h" |
| |
| #define R 0 |
| #define G 1 |
| #define B 2 |
| #define A 3 |
| |
| typedef struct ThreadData { |
| AVFrame *in, *out; |
| } ThreadData; |
| |
| typedef struct ColorChannelMixerContext { |
| const AVClass *class; |
| double rr, rg, rb, ra; |
| double gr, gg, gb, ga; |
| double br, bg, bb, ba; |
| double ar, ag, ab, aa; |
| double sr, sg, sb; |
| double preserve_lightness; |
| |
| int *lut[4][4]; |
| |
| int *buffer; |
| |
| uint8_t rgba_map[4]; |
| |
| int (*filter_slice[2])(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs); |
| } ColorChannelMixerContext; |
| |
| #define OFFSET(x) offsetof(ColorChannelMixerContext, x) |
| #define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM |
| |
| static const AVOption colorchannelmixer_options[] = { |
| { "rr", "set the red gain for the red channel", OFFSET(rr), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS }, |
| { "rg", "set the green gain for the red channel", OFFSET(rg), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "rb", "set the blue gain for the red channel", OFFSET(rb), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "ra", "set the alpha gain for the red channel", OFFSET(ra), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "gr", "set the red gain for the green channel", OFFSET(gr), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "gg", "set the green gain for the green channel", OFFSET(gg), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS }, |
| { "gb", "set the blue gain for the green channel", OFFSET(gb), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "ga", "set the alpha gain for the green channel", OFFSET(ga), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "br", "set the red gain for the blue channel", OFFSET(br), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "bg", "set the green gain for the blue channel", OFFSET(bg), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "bb", "set the blue gain for the blue channel", OFFSET(bb), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS }, |
| { "ba", "set the alpha gain for the blue channel", OFFSET(ba), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "ar", "set the red gain for the alpha channel", OFFSET(ar), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "ag", "set the green gain for the alpha channel", OFFSET(ag), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "ab", "set the blue gain for the alpha channel", OFFSET(ab), AV_OPT_TYPE_DOUBLE, {.dbl=0}, -2, 2, FLAGS }, |
| { "aa", "set the alpha gain for the alpha channel", OFFSET(aa), AV_OPT_TYPE_DOUBLE, {.dbl=1}, -2, 2, FLAGS }, |
| { "pl", "preserve lightness", OFFSET(preserve_lightness), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS }, |
| { NULL } |
| }; |
| |
| AVFILTER_DEFINE_CLASS(colorchannelmixer); |
| |
| static int query_formats(AVFilterContext *ctx) |
| { |
| static const enum AVPixelFormat pix_fmts[] = { |
| AV_PIX_FMT_RGB24, AV_PIX_FMT_BGR24, |
| AV_PIX_FMT_RGBA, AV_PIX_FMT_BGRA, |
| AV_PIX_FMT_ARGB, AV_PIX_FMT_ABGR, |
| AV_PIX_FMT_0RGB, AV_PIX_FMT_0BGR, |
| AV_PIX_FMT_RGB0, AV_PIX_FMT_BGR0, |
| AV_PIX_FMT_RGB48, AV_PIX_FMT_BGR48, |
| AV_PIX_FMT_RGBA64, AV_PIX_FMT_BGRA64, |
| AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP, |
| AV_PIX_FMT_GBRP9, |
| AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10, |
| AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRAP12, |
| AV_PIX_FMT_GBRP14, |
| AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16, |
| AV_PIX_FMT_NONE |
| }; |
| |
| AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
| if (!fmts_list) |
| return AVERROR(ENOMEM); |
| return ff_set_common_formats(ctx, fmts_list); |
| } |
| |
| static float lerpf(float v0, float v1, float f) |
| { |
| return v0 + (v1 - v0) * f; |
| } |
| |
| static void preservel(float *r, float *g, float *b, float lin, float lout) |
| { |
| *r *= lout / lin; |
| *g *= lout / lin; |
| *b *= lout / lin; |
| } |
| |
| static av_always_inline int filter_slice_rgba_planar(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs, |
| int have_alpha, int pl) |
| { |
| ColorChannelMixerContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *in = td->in; |
| AVFrame *out = td->out; |
| const float l = s->preserve_lightness; |
| const float sr = s->sr; |
| const float sg = s->sg; |
| const float sb = s->sb; |
| const int slice_start = (out->height * jobnr) / nb_jobs; |
| const int slice_end = (out->height * (jobnr+1)) / nb_jobs; |
| const uint8_t *srcg = in->data[0] + slice_start * in->linesize[0]; |
| const uint8_t *srcb = in->data[1] + slice_start * in->linesize[1]; |
| const uint8_t *srcr = in->data[2] + slice_start * in->linesize[2]; |
| const uint8_t *srca = in->data[3] + slice_start * in->linesize[3]; |
| uint8_t *dstg = out->data[0] + slice_start * out->linesize[0]; |
| uint8_t *dstb = out->data[1] + slice_start * out->linesize[1]; |
| uint8_t *dstr = out->data[2] + slice_start * out->linesize[2]; |
| uint8_t *dsta = out->data[3] + slice_start * out->linesize[3]; |
| int i, j; |
| |
| for (i = slice_start; i < slice_end; i++) { |
| for (j = 0; j < out->width; j++) { |
| const uint8_t rin = srcr[j]; |
| const uint8_t gin = srcg[j]; |
| const uint8_t bin = srcb[j]; |
| const uint8_t ain = have_alpha ? srca[j] : 0; |
| int rout, gout, bout; |
| float lin; |
| |
| if (pl) |
| lin = FFMAX3(rin, gin, bin) + FFMIN3(rin, gin, bin); |
| |
| rout = s->lut[R][R][rin] + |
| s->lut[R][G][gin] + |
| s->lut[R][B][bin] + |
| (have_alpha == 1 ? s->lut[R][A][ain] : 0); |
| gout = s->lut[G][R][rin] + |
| s->lut[G][G][gin] + |
| s->lut[G][B][bin] + |
| (have_alpha == 1 ? s->lut[G][A][ain] : 0); |
| bout = s->lut[B][R][rin] + |
| s->lut[B][G][gin] + |
| s->lut[B][B][bin] + |
| (have_alpha == 1 ? s->lut[B][A][ain] : 0); |
| |
| if (pl) { |
| float frout = rout / sr; |
| float fgout = gout / sg; |
| float fbout = bout / sb; |
| float lout = FFMAX3(frout, fgout, fbout) + FFMIN3(frout, fgout, fbout); |
| |
| preservel(&frout, &fgout, &fbout, lin, lout); |
| |
| rout = lrintf(lerpf(rout, frout, l)); |
| gout = lrintf(lerpf(gout, fgout, l)); |
| bout = lrintf(lerpf(bout, fbout, l)); |
| } |
| |
| dstr[j] = av_clip_uint8(rout); |
| dstg[j] = av_clip_uint8(gout); |
| dstb[j] = av_clip_uint8(bout); |
| |
| if (have_alpha == 1) { |
| dsta[j] = av_clip_uint8(s->lut[A][R][rin] + |
| s->lut[A][G][gin] + |
| s->lut[A][B][bin] + |
| s->lut[A][A][ain]); |
| } |
| } |
| |
| srcg += in->linesize[0]; |
| srcb += in->linesize[1]; |
| srcr += in->linesize[2]; |
| srca += in->linesize[3]; |
| dstg += out->linesize[0]; |
| dstb += out->linesize[1]; |
| dstr += out->linesize[2]; |
| dsta += out->linesize[3]; |
| } |
| |
| return 0; |
| } |
| |
| static av_always_inline int filter_slice_rgba16_planar(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs, |
| int have_alpha, int depth, int pl) |
| { |
| ColorChannelMixerContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *in = td->in; |
| AVFrame *out = td->out; |
| const float l = s->preserve_lightness; |
| const float sr = s->sr; |
| const float sg = s->sg; |
| const float sb = s->sb; |
| const int slice_start = (out->height * jobnr) / nb_jobs; |
| const int slice_end = (out->height * (jobnr+1)) / nb_jobs; |
| const uint16_t *srcg = (const uint16_t *)(in->data[0] + slice_start * in->linesize[0]); |
| const uint16_t *srcb = (const uint16_t *)(in->data[1] + slice_start * in->linesize[1]); |
| const uint16_t *srcr = (const uint16_t *)(in->data[2] + slice_start * in->linesize[2]); |
| const uint16_t *srca = (const uint16_t *)(in->data[3] + slice_start * in->linesize[3]); |
| uint16_t *dstg = (uint16_t *)(out->data[0] + slice_start * out->linesize[0]); |
| uint16_t *dstb = (uint16_t *)(out->data[1] + slice_start * out->linesize[1]); |
| uint16_t *dstr = (uint16_t *)(out->data[2] + slice_start * out->linesize[2]); |
| uint16_t *dsta = (uint16_t *)(out->data[3] + slice_start * out->linesize[3]); |
| int i, j; |
| |
| for (i = slice_start; i < slice_end; i++) { |
| for (j = 0; j < out->width; j++) { |
| const uint16_t rin = srcr[j]; |
| const uint16_t gin = srcg[j]; |
| const uint16_t bin = srcb[j]; |
| const uint16_t ain = have_alpha ? srca[j] : 0; |
| int rout, gout, bout; |
| float lin; |
| |
| if (pl) |
| lin = FFMAX3(rin, gin, bin) + FFMIN3(rin, gin, bin); |
| |
| rout = s->lut[R][R][rin] + |
| s->lut[R][G][gin] + |
| s->lut[R][B][bin] + |
| (have_alpha == 1 ? s->lut[R][A][ain] : 0); |
| gout = s->lut[G][R][rin] + |
| s->lut[G][G][gin] + |
| s->lut[G][B][bin] + |
| (have_alpha == 1 ? s->lut[G][A][ain] : 0); |
| bout = s->lut[B][R][rin] + |
| s->lut[B][G][gin] + |
| s->lut[B][B][bin] + |
| (have_alpha == 1 ? s->lut[B][A][ain] : 0); |
| |
| if (pl) { |
| float frout = rout / sr; |
| float fgout = gout / sg; |
| float fbout = bout / sb; |
| float lout = FFMAX3(frout, fgout, fbout) + FFMIN3(frout, fgout, fbout); |
| |
| preservel(&frout, &fgout, &fbout, lin, lout); |
| |
| rout = lrintf(lerpf(rout, frout, l)); |
| gout = lrintf(lerpf(gout, fgout, l)); |
| bout = lrintf(lerpf(bout, fbout, l)); |
| } |
| |
| dstr[j] = av_clip_uintp2(rout, depth); |
| dstg[j] = av_clip_uintp2(gout, depth); |
| dstb[j] = av_clip_uintp2(bout, depth); |
| |
| if (have_alpha == 1) { |
| dsta[j] = av_clip_uintp2(s->lut[A][R][rin] + |
| s->lut[A][G][gin] + |
| s->lut[A][B][bin] + |
| s->lut[A][A][ain], depth); |
| } |
| } |
| |
| srcg += in->linesize[0] / 2; |
| srcb += in->linesize[1] / 2; |
| srcr += in->linesize[2] / 2; |
| srca += in->linesize[3] / 2; |
| dstg += out->linesize[0] / 2; |
| dstb += out->linesize[1] / 2; |
| dstr += out->linesize[2] / 2; |
| dsta += out->linesize[3] / 2; |
| } |
| |
| return 0; |
| } |
| |
| static int filter_slice_gbrp(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_planar(ctx, arg, jobnr, nb_jobs, 0, 0); |
| } |
| |
| static int filter_slice_gbrap(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_planar(ctx, arg, jobnr, nb_jobs, 1, 0); |
| } |
| |
| static int filter_slice_gbrp_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_planar(ctx, arg, jobnr, nb_jobs, 0, 1); |
| } |
| |
| static int filter_slice_gbrap_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_planar(ctx, arg, jobnr, nb_jobs, 1, 1); |
| } |
| |
| static int filter_slice_gbrp9(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 9, 0); |
| } |
| |
| static int filter_slice_gbrp10(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 10, 0); |
| } |
| |
| static int filter_slice_gbrap10(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 10, 0); |
| } |
| |
| static int filter_slice_gbrp12(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 12, 0); |
| } |
| |
| static int filter_slice_gbrap12(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 12, 0); |
| } |
| |
| static int filter_slice_gbrp14(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 14, 0); |
| } |
| |
| static int filter_slice_gbrp16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 16, 0); |
| } |
| |
| static int filter_slice_gbrap16(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 16, 0); |
| } |
| |
| static int filter_slice_gbrp9_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 9, 1); |
| } |
| |
| static int filter_slice_gbrp10_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 10, 1); |
| } |
| |
| static int filter_slice_gbrap10_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 10, 1); |
| } |
| |
| static int filter_slice_gbrp12_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 12, 1); |
| } |
| |
| static int filter_slice_gbrap12_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 12, 1); |
| } |
| |
| static int filter_slice_gbrp14_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 14, 1); |
| } |
| |
| static int filter_slice_gbrp16_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 0, 16, 1); |
| } |
| |
| static int filter_slice_gbrap16_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_planar(ctx, arg, jobnr, nb_jobs, 1, 16, 1); |
| } |
| |
| static av_always_inline int filter_slice_rgba_packed(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs, |
| int have_alpha, int step, int pl) |
| { |
| ColorChannelMixerContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *in = td->in; |
| AVFrame *out = td->out; |
| const float l = s->preserve_lightness; |
| const float sr = s->sr; |
| const float sg = s->sg; |
| const float sb = s->sb; |
| const int slice_start = (out->height * jobnr) / nb_jobs; |
| const int slice_end = (out->height * (jobnr+1)) / nb_jobs; |
| const uint8_t roffset = s->rgba_map[R]; |
| const uint8_t goffset = s->rgba_map[G]; |
| const uint8_t boffset = s->rgba_map[B]; |
| const uint8_t aoffset = s->rgba_map[A]; |
| const uint8_t *srcrow = in->data[0] + slice_start * in->linesize[0]; |
| uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; |
| int i, j; |
| |
| for (i = slice_start; i < slice_end; i++) { |
| const uint8_t *src = srcrow; |
| uint8_t *dst = dstrow; |
| |
| for (j = 0; j < out->width * step; j += step) { |
| const uint8_t rin = src[j + roffset]; |
| const uint8_t gin = src[j + goffset]; |
| const uint8_t bin = src[j + boffset]; |
| const uint8_t ain = src[j + aoffset]; |
| int rout, gout, bout; |
| float lin; |
| |
| if (pl) |
| lin = FFMAX3(rin, gin, bin) + FFMIN3(rin, gin, bin); |
| |
| rout = s->lut[R][R][rin] + |
| s->lut[R][G][gin] + |
| s->lut[R][B][bin] + |
| (have_alpha == 1 ? s->lut[R][A][ain] : 0); |
| gout = s->lut[G][R][rin] + |
| s->lut[G][G][gin] + |
| s->lut[G][B][bin] + |
| (have_alpha == 1 ? s->lut[G][A][ain] : 0); |
| bout = s->lut[B][R][rin] + |
| s->lut[B][G][gin] + |
| s->lut[B][B][bin] + |
| (have_alpha == 1 ? s->lut[B][A][ain] : 0); |
| |
| if (pl) { |
| float frout = rout / sr; |
| float fgout = gout / sg; |
| float fbout = bout / sb; |
| float lout = FFMAX3(frout, fgout, fbout) + FFMIN3(frout, fgout, fbout); |
| |
| preservel(&frout, &fgout, &fbout, lin, lout); |
| |
| rout = lrintf(lerpf(rout, frout, l)); |
| gout = lrintf(lerpf(gout, fgout, l)); |
| bout = lrintf(lerpf(bout, fbout, l)); |
| } |
| |
| dst[j + roffset] = av_clip_uint8(rout); |
| dst[j + goffset] = av_clip_uint8(gout); |
| dst[j + boffset] = av_clip_uint8(bout); |
| |
| if (have_alpha == 1) { |
| dst[j + aoffset] = av_clip_uint8(s->lut[A][R][rin] + |
| s->lut[A][G][gin] + |
| s->lut[A][B][bin] + |
| s->lut[A][A][ain]); |
| } else if (have_alpha == -1 && in != out) |
| dst[j + aoffset] = 0; |
| } |
| |
| srcrow += in->linesize[0]; |
| dstrow += out->linesize[0]; |
| } |
| |
| return 0; |
| } |
| |
| static av_always_inline int filter_slice_rgba16_packed(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs, |
| int have_alpha, int step, int pl) |
| { |
| ColorChannelMixerContext *s = ctx->priv; |
| ThreadData *td = arg; |
| AVFrame *in = td->in; |
| AVFrame *out = td->out; |
| const float l = s->preserve_lightness; |
| const float sr = s->sr; |
| const float sg = s->sg; |
| const float sb = s->sb; |
| const int slice_start = (out->height * jobnr) / nb_jobs; |
| const int slice_end = (out->height * (jobnr+1)) / nb_jobs; |
| const uint8_t roffset = s->rgba_map[R]; |
| const uint8_t goffset = s->rgba_map[G]; |
| const uint8_t boffset = s->rgba_map[B]; |
| const uint8_t aoffset = s->rgba_map[A]; |
| const uint8_t *srcrow = in->data[0] + slice_start * in->linesize[0]; |
| uint8_t *dstrow = out->data[0] + slice_start * out->linesize[0]; |
| int i, j; |
| |
| for (i = slice_start; i < slice_end; i++) { |
| const uint16_t *src = (const uint16_t *)srcrow; |
| uint16_t *dst = (uint16_t *)dstrow; |
| |
| for (j = 0; j < out->width * step; j += step) { |
| const uint16_t rin = src[j + roffset]; |
| const uint16_t gin = src[j + goffset]; |
| const uint16_t bin = src[j + boffset]; |
| const uint16_t ain = src[j + aoffset]; |
| int rout, gout, bout; |
| float lin; |
| |
| if (pl) |
| lin = FFMAX3(rin, gin, bin) + FFMIN3(rin, gin, bin); |
| |
| rout = s->lut[R][R][rin] + |
| s->lut[R][G][gin] + |
| s->lut[R][B][bin] + |
| (have_alpha == 1 ? s->lut[R][A][ain] : 0); |
| gout = s->lut[G][R][rin] + |
| s->lut[G][G][gin] + |
| s->lut[G][B][bin] + |
| (have_alpha == 1 ? s->lut[G][A][ain] : 0); |
| bout = s->lut[B][R][rin] + |
| s->lut[B][G][gin] + |
| s->lut[B][B][bin] + |
| (have_alpha == 1 ? s->lut[B][A][ain] : 0); |
| |
| if (pl) { |
| float frout = rout / sr; |
| float fgout = gout / sg; |
| float fbout = bout / sb; |
| float lout = FFMAX3(frout, fgout, fbout) + FFMIN3(frout, fgout, fbout); |
| |
| preservel(&frout, &fgout, &fbout, lin, lout); |
| |
| rout = lrintf(lerpf(rout, frout, l)); |
| gout = lrintf(lerpf(gout, fgout, l)); |
| bout = lrintf(lerpf(bout, fbout, l)); |
| } |
| |
| dst[j + roffset] = av_clip_uint16(rout); |
| dst[j + goffset] = av_clip_uint16(gout); |
| dst[j + boffset] = av_clip_uint16(bout); |
| |
| if (have_alpha == 1) { |
| dst[j + aoffset] = av_clip_uint16(s->lut[A][R][rin] + |
| s->lut[A][G][gin] + |
| s->lut[A][B][bin] + |
| s->lut[A][A][ain]); |
| } |
| } |
| |
| srcrow += in->linesize[0]; |
| dstrow += out->linesize[0]; |
| } |
| |
| return 0; |
| } |
| |
| static int filter_slice_rgba64(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_packed(ctx, arg, jobnr, nb_jobs, 1, 4, 0); |
| } |
| |
| static int filter_slice_rgb48(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_packed(ctx, arg, jobnr, nb_jobs, 0, 3, 0); |
| } |
| |
| static int filter_slice_rgba64_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_packed(ctx, arg, jobnr, nb_jobs, 1, 4, 1); |
| } |
| |
| static int filter_slice_rgb48_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba16_packed(ctx, arg, jobnr, nb_jobs, 0, 3, 1); |
| } |
| |
| static int filter_slice_rgba(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 1, 4, 0); |
| } |
| |
| static int filter_slice_rgb24(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 0, 3, 0); |
| } |
| |
| static int filter_slice_rgb0(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, -1, 4, 0); |
| } |
| |
| static int filter_slice_rgba_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 1, 4, 1); |
| } |
| |
| static int filter_slice_rgb24_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, 0, 3, 1); |
| } |
| |
| static int filter_slice_rgb0_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) |
| { |
| return filter_slice_rgba_packed(ctx, arg, jobnr, nb_jobs, -1, 4, 1); |
| } |
| |
| static int config_output(AVFilterLink *outlink) |
| { |
| AVFilterContext *ctx = outlink->src; |
| ColorChannelMixerContext *s = ctx->priv; |
| const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(outlink->format); |
| const int depth = desc->comp[0].depth; |
| int i, j, size, *buffer = s->buffer; |
| |
| ff_fill_rgba_map(s->rgba_map, outlink->format); |
| |
| size = 1 << depth; |
| if (!s->buffer) { |
| s->buffer = buffer = av_malloc(16 * size * sizeof(*s->buffer)); |
| if (!s->buffer) |
| return AVERROR(ENOMEM); |
| |
| for (i = 0; i < 4; i++) |
| for (j = 0; j < 4; j++, buffer += size) |
| s->lut[i][j] = buffer; |
| } |
| |
| s->sr = s->rr + s->rg + s->rb + s->ra; |
| s->sg = s->gr + s->gg + s->gb + s->ga; |
| s->sb = s->br + s->bg + s->bb + s->ba; |
| |
| if (fabs(s->sr) <= DBL_EPSILON) |
| s->sr = 1.; |
| |
| if (fabs(s->sg) <= DBL_EPSILON) |
| s->sg = 1.; |
| |
| if (fabs(s->sb) <= DBL_EPSILON) |
| s->sb = 1.; |
| |
| for (i = 0; i < size; i++) { |
| s->lut[R][R][i] = lrint(i * s->rr); |
| s->lut[R][G][i] = lrint(i * s->rg); |
| s->lut[R][B][i] = lrint(i * s->rb); |
| s->lut[R][A][i] = lrint(i * s->ra); |
| |
| s->lut[G][R][i] = lrint(i * s->gr); |
| s->lut[G][G][i] = lrint(i * s->gg); |
| s->lut[G][B][i] = lrint(i * s->gb); |
| s->lut[G][A][i] = lrint(i * s->ga); |
| |
| s->lut[B][R][i] = lrint(i * s->br); |
| s->lut[B][G][i] = lrint(i * s->bg); |
| s->lut[B][B][i] = lrint(i * s->bb); |
| s->lut[B][A][i] = lrint(i * s->ba); |
| |
| s->lut[A][R][i] = lrint(i * s->ar); |
| s->lut[A][G][i] = lrint(i * s->ag); |
| s->lut[A][B][i] = lrint(i * s->ab); |
| s->lut[A][A][i] = lrint(i * s->aa); |
| } |
| |
| switch (outlink->format) { |
| case AV_PIX_FMT_BGR24: |
| case AV_PIX_FMT_RGB24: |
| s->filter_slice[0] = filter_slice_rgb24; |
| s->filter_slice[1] = filter_slice_rgb24_pl; |
| break; |
| case AV_PIX_FMT_0BGR: |
| case AV_PIX_FMT_0RGB: |
| case AV_PIX_FMT_BGR0: |
| case AV_PIX_FMT_RGB0: |
| s->filter_slice[0] = filter_slice_rgb0; |
| s->filter_slice[1] = filter_slice_rgb0_pl; |
| break; |
| case AV_PIX_FMT_ABGR: |
| case AV_PIX_FMT_ARGB: |
| case AV_PIX_FMT_BGRA: |
| case AV_PIX_FMT_RGBA: |
| s->filter_slice[0] = filter_slice_rgba; |
| s->filter_slice[1] = filter_slice_rgba_pl; |
| break; |
| case AV_PIX_FMT_BGR48: |
| case AV_PIX_FMT_RGB48: |
| s->filter_slice[0] = filter_slice_rgb48; |
| s->filter_slice[1] = filter_slice_rgb48_pl; |
| break; |
| case AV_PIX_FMT_BGRA64: |
| case AV_PIX_FMT_RGBA64: |
| s->filter_slice[0] = filter_slice_rgba64; |
| s->filter_slice[1] = filter_slice_rgba64_pl; |
| break; |
| case AV_PIX_FMT_GBRP: |
| s->filter_slice[0] = filter_slice_gbrp; |
| s->filter_slice[1] = filter_slice_gbrp_pl; |
| break; |
| case AV_PIX_FMT_GBRAP: |
| s->filter_slice[0] = filter_slice_gbrap; |
| s->filter_slice[1] = filter_slice_gbrap_pl; |
| break; |
| case AV_PIX_FMT_GBRP9: |
| s->filter_slice[0] = filter_slice_gbrp9; |
| s->filter_slice[1] = filter_slice_gbrp9_pl; |
| break; |
| case AV_PIX_FMT_GBRP10: |
| s->filter_slice[0] = filter_slice_gbrp10; |
| s->filter_slice[1] = filter_slice_gbrp10_pl; |
| break; |
| case AV_PIX_FMT_GBRAP10: |
| s->filter_slice[0] = filter_slice_gbrap10; |
| s->filter_slice[1] = filter_slice_gbrap10_pl; |
| break; |
| case AV_PIX_FMT_GBRP12: |
| s->filter_slice[0] = filter_slice_gbrp12; |
| s->filter_slice[1] = filter_slice_gbrp12_pl; |
| break; |
| case AV_PIX_FMT_GBRAP12: |
| s->filter_slice[0] = filter_slice_gbrap12; |
| s->filter_slice[1] = filter_slice_gbrap12_pl; |
| break; |
| case AV_PIX_FMT_GBRP14: |
| s->filter_slice[0] = filter_slice_gbrp14; |
| s->filter_slice[1] = filter_slice_gbrp14_pl; |
| break; |
| case AV_PIX_FMT_GBRP16: |
| s->filter_slice[0] = filter_slice_gbrp16; |
| s->filter_slice[1] = filter_slice_gbrp16_pl; |
| break; |
| case AV_PIX_FMT_GBRAP16: |
| s->filter_slice[0] = filter_slice_gbrap16; |
| s->filter_slice[1] = filter_slice_gbrap16_pl; |
| break; |
| } |
| |
| return 0; |
| } |
| |
| static int filter_frame(AVFilterLink *inlink, AVFrame *in) |
| { |
| AVFilterContext *ctx = inlink->dst; |
| ColorChannelMixerContext *s = ctx->priv; |
| AVFilterLink *outlink = ctx->outputs[0]; |
| const int pl = s->preserve_lightness > 0.; |
| ThreadData td; |
| AVFrame *out; |
| |
| if (av_frame_is_writable(in)) { |
| out = in; |
| } else { |
| 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); |
| } |
| |
| td.in = in; |
| td.out = out; |
| ctx->internal->execute(ctx, s->filter_slice[pl], &td, NULL, FFMIN(outlink->h, ff_filter_get_nb_threads(ctx))); |
| |
| if (in != out) |
| av_frame_free(&in); |
| return ff_filter_frame(outlink, out); |
| } |
| |
| static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, |
| char *res, int res_len, int flags) |
| { |
| int ret = ff_filter_process_command(ctx, cmd, args, res, res_len, flags); |
| |
| if (ret < 0) |
| return ret; |
| |
| return config_output(ctx->outputs[0]); |
| } |
| |
| static av_cold void uninit(AVFilterContext *ctx) |
| { |
| ColorChannelMixerContext *s = ctx->priv; |
| |
| av_freep(&s->buffer); |
| } |
| |
| static const AVFilterPad colorchannelmixer_inputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .filter_frame = filter_frame, |
| }, |
| { NULL } |
| }; |
| |
| static const AVFilterPad colorchannelmixer_outputs[] = { |
| { |
| .name = "default", |
| .type = AVMEDIA_TYPE_VIDEO, |
| .config_props = config_output, |
| }, |
| { NULL } |
| }; |
| |
| AVFilter ff_vf_colorchannelmixer = { |
| .name = "colorchannelmixer", |
| .description = NULL_IF_CONFIG_SMALL("Adjust colors by mixing color channels."), |
| .priv_size = sizeof(ColorChannelMixerContext), |
| .priv_class = &colorchannelmixer_class, |
| .uninit = uninit, |
| .query_formats = query_formats, |
| .inputs = colorchannelmixer_inputs, |
| .outputs = colorchannelmixer_outputs, |
| .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, |
| .process_command = process_command, |
| }; |
