/* * 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 #include "libavutil/opt.h" #include "libavutil/pixdesc.h" #include "avfilter.h" #include "drawutils.h" #include "formats.h" #include "internal.h" #include "video.h" #include "preserve_color.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 preserve_amount; int preserve_color; 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; 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, float max) { if (lout <= 0.f) lout = 1.f / (max * 2.f); *r *= lin / lout; *g *= lin / lout; *b *= lin / lout; } #define DEPTH 8 #include "colorchannelmixer_template.c" #undef DEPTH #define DEPTH 16 #include "colorchannelmixer_template.c" #undef DEPTH #define DEPTH 32 #include "colorchannelmixer_template.c" #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 }, { "pc", "set the preserve color mode", OFFSET(preserve_color), AV_OPT_TYPE_INT, {.i64=0}, 0, NB_PRESERVE-1, FLAGS, "preserve" }, { "none", "disabled", 0, AV_OPT_TYPE_CONST, {.i64=P_NONE}, 0, 0, FLAGS, "preserve" }, { "lum", "luminance", 0, AV_OPT_TYPE_CONST, {.i64=P_LUM}, 0, 0, FLAGS, "preserve" }, { "max", "max", 0, AV_OPT_TYPE_CONST, {.i64=P_MAX}, 0, 0, FLAGS, "preserve" }, { "avg", "average", 0, AV_OPT_TYPE_CONST, {.i64=P_AVG}, 0, 0, FLAGS, "preserve" }, { "sum", "sum", 0, AV_OPT_TYPE_CONST, {.i64=P_SUM}, 0, 0, FLAGS, "preserve" }, { "nrm", "norm", 0, AV_OPT_TYPE_CONST, {.i64=P_NRM}, 0, 0, FLAGS, "preserve" }, { "pwr", "power", 0, AV_OPT_TYPE_CONST, {.i64=P_PWR}, 0, 0, FLAGS, "preserve" }, { "pa", "set the preserve color amount", OFFSET(preserve_amount), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, FLAGS }, { NULL } }; AVFILTER_DEFINE_CLASS(colorchannelmixer); 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_GBRPF32, AV_PIX_FMT_GBRAPF32, AV_PIX_FMT_NONE }; static int filter_slice_gbrp(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_8(ctx, arg, jobnr, nb_jobs, 0, 8, 0); } static int filter_slice_gbrap(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_8(ctx, arg, jobnr, nb_jobs, 1, 8, 0); } static int filter_slice_gbrp_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_8(ctx, arg, jobnr, nb_jobs, 0, 8, 1); } static int filter_slice_gbrap_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_8(ctx, arg, jobnr, nb_jobs, 1, 8, 1); } static int filter_slice_gbrp9(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(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_rgba_planar_16(ctx, arg, jobnr, nb_jobs, 1, 16, 1); } static int filter_slice_rgba64(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_16(ctx, arg, jobnr, nb_jobs, 1, 4, 0, 16); } static int filter_slice_rgb48(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_16(ctx, arg, jobnr, nb_jobs, 0, 3, 0, 16); } static int filter_slice_rgba64_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_16(ctx, arg, jobnr, nb_jobs, 1, 4, 1, 16); } static int filter_slice_rgb48_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_16(ctx, arg, jobnr, nb_jobs, 0, 3, 1, 16); } static int filter_slice_rgba(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_8(ctx, arg, jobnr, nb_jobs, 1, 4, 0, 8); } static int filter_slice_rgb24(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_8(ctx, arg, jobnr, nb_jobs, 0, 3, 0, 8); } static int filter_slice_rgb0(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_8(ctx, arg, jobnr, nb_jobs, -1, 4, 0, 8); } static int filter_slice_rgba_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_8(ctx, arg, jobnr, nb_jobs, 1, 4, 1, 8); } static int filter_slice_rgb24_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_8(ctx, arg, jobnr, nb_jobs, 0, 3, 1, 8); } static int filter_slice_rgb0_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_packed_8(ctx, arg, jobnr, nb_jobs, -1, 4, 1, 8); } static int filter_slice_gbrp32(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_32(ctx, arg, jobnr, nb_jobs, 0, 1, 0); } static int filter_slice_gbrap32(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_32(ctx, arg, jobnr, nb_jobs, 1, 1, 0); } static int filter_slice_gbrp32_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_32(ctx, arg, jobnr, nb_jobs, 0, 1, 1); } static int filter_slice_gbrap32_pl(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) { return filter_slice_rgba_planar_32(ctx, arg, jobnr, nb_jobs, 1, 1, 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; } 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; case AV_PIX_FMT_GBRPF32: s->filter_slice[0] = filter_slice_gbrp32; s->filter_slice[1] = filter_slice_gbrp32_pl; break; case AV_PIX_FMT_GBRAPF32: s->filter_slice[0] = filter_slice_gbrap32; s->filter_slice[1] = filter_slice_gbrap32_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 pc = s->preserve_color > 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; ff_filter_execute(ctx, s->filter_slice[pc], &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, }, }; static const AVFilterPad colorchannelmixer_outputs[] = { { .name = "default", .type = AVMEDIA_TYPE_VIDEO, .config_props = config_output, }, }; const 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, FILTER_INPUTS(colorchannelmixer_inputs), FILTER_OUTPUTS(colorchannelmixer_outputs), FILTER_PIXFMTS_ARRAY(pix_fmts), .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS, .process_command = process_command, };