summaryrefslogtreecommitdiff
path: root/libavfilter/vf_pseudocolor.c
diff options
context:
space:
mode:
Diffstat (limited to 'libavfilter/vf_pseudocolor.c')
-rw-r--r--libavfilter/vf_pseudocolor.c662
1 files changed, 662 insertions, 0 deletions
diff --git a/libavfilter/vf_pseudocolor.c b/libavfilter/vf_pseudocolor.c
new file mode 100644
index 0000000000..f8f5372752
--- /dev/null
+++ b/libavfilter/vf_pseudocolor.c
@@ -0,0 +1,662 @@
+/*
+ * Copyright (c) 2017 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/attributes.h"
+#include "libavutil/common.h"
+#include "libavutil/eval.h"
+#include "libavutil/imgutils.h"
+#include "libavutil/opt.h"
+#include "libavutil/pixdesc.h"
+#include "avfilter.h"
+#include "formats.h"
+#include "internal.h"
+#include "video.h"
+
+static const char *const var_names[] = {
+ "w", ///< width of the input video
+ "h", ///< height of the input video
+ "val", ///< input value for the pixel
+ "ymin",
+ "umin",
+ "vmin",
+ "amin",
+ "ymax",
+ "umax",
+ "vmax",
+ "amax",
+ NULL
+};
+
+enum var_name {
+ VAR_W,
+ VAR_H,
+ VAR_VAL,
+ VAR_YMIN,
+ VAR_UMIN,
+ VAR_VMIN,
+ VAR_AMIN,
+ VAR_YMAX,
+ VAR_UMAX,
+ VAR_VMAX,
+ VAR_AMAX,
+ VAR_VARS_NB
+};
+
+typedef struct PseudoColorContext {
+ const AVClass *class;
+ int max;
+ int index;
+ int nb_planes;
+ int color;
+ int linesize[4];
+ int width[4], height[4];
+ double var_values[VAR_VARS_NB];
+ char *comp_expr_str[4];
+ AVExpr *comp_expr[4];
+ float lut[4][256*256];
+
+ void (*filter[4])(int max, int width, int height,
+ const uint8_t *index, const uint8_t *src,
+ uint8_t *dst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut);
+} PseudoColorContext;
+
+#define OFFSET(x) offsetof(PseudoColorContext, x)
+#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
+
+static const AVOption pseudocolor_options[] = {
+ { "c0", "set component #0 expression", OFFSET(comp_expr_str[0]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
+ { "c1", "set component #1 expression", OFFSET(comp_expr_str[1]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
+ { "c2", "set component #2 expression", OFFSET(comp_expr_str[2]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
+ { "c3", "set component #3 expression", OFFSET(comp_expr_str[3]), AV_OPT_TYPE_STRING, {.str="val"}, .flags = FLAGS },
+ { "i", "set component as base", OFFSET(index), AV_OPT_TYPE_INT, {.i64=0}, 0, 3, .flags = FLAGS },
+ { NULL }
+};
+
+static const enum AVPixelFormat pix_fmts[] = {
+ AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY16,
+ AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVA420P,
+ AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA422P,
+ AV_PIX_FMT_YUV444P, AV_PIX_FMT_GBRP,
+ AV_PIX_FMT_YUVA444P, AV_PIX_FMT_GBRAP,
+ AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUVA422P9,
+ AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUVA420P9,
+ AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUVA444P9,
+ AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUVA420P10,
+ AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUVA422P10,
+ AV_PIX_FMT_YUV444P10, AV_PIX_FMT_YUVA444P10,
+ AV_PIX_FMT_YUV420P12,
+ AV_PIX_FMT_YUV422P12,
+ AV_PIX_FMT_YUV444P12,
+ AV_PIX_FMT_YUV420P14,
+ AV_PIX_FMT_YUV422P14,
+ AV_PIX_FMT_YUV444P14,
+ AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUVA420P16,
+ AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUVA422P16,
+ AV_PIX_FMT_YUV444P16, AV_PIX_FMT_YUVA444P16,
+ AV_PIX_FMT_GBRP10, AV_PIX_FMT_GBRAP10,
+ AV_PIX_FMT_GBRP16, AV_PIX_FMT_GBRAP16,
+ AV_PIX_FMT_NONE
+};
+
+static int query_formats(AVFilterContext *ctx)
+{
+ AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts);
+ if (!fmts_list)
+ return AVERROR(ENOMEM);
+ return ff_set_common_formats(ctx, fmts_list);
+}
+
+static void pseudocolor_filter(int max, int width, int height,
+ const uint8_t *index,
+ const uint8_t *src,
+ uint8_t *dst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[x]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ index += ilinesize;
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static void pseudocolor_filter_11(int max, int width, int height,
+ const uint8_t *index,
+ const uint8_t *src,
+ uint8_t *dst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[(y << 1) * ilinesize + (x << 1)]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static void pseudocolor_filter_11d(int max, int width, int height,
+ const uint8_t *index,
+ const uint8_t *src,
+ uint8_t *dst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[(y >> 1) * ilinesize + (x >> 1)]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static void pseudocolor_filter_10(int max, int width, int height,
+ const uint8_t *index,
+ const uint8_t *src,
+ uint8_t *dst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[x << 1]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ index += ilinesize;
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static void pseudocolor_filter_10d(int max, int width, int height,
+ const uint8_t *index,
+ const uint8_t *src,
+ uint8_t *dst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[x >> 1]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ index += ilinesize;
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static void pseudocolor_filter_16(int max, int width, int height,
+ const uint8_t *iindex,
+ const uint8_t *ssrc,
+ uint8_t *ddst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ const uint16_t *index = (const uint16_t *)iindex;
+ const uint16_t *src = (const uint16_t *)ssrc;
+ uint16_t *dst = (uint16_t *)ddst;
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[x]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ index += ilinesize / 2;
+ src += slinesize / 2;
+ dst += dlinesize / 2;
+ }
+}
+
+static void pseudocolor_filter_16_10(int max, int width, int height,
+ const uint8_t *iindex,
+ const uint8_t *ssrc,
+ uint8_t *ddst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ const uint16_t *index = (const uint16_t *)iindex;
+ const uint16_t *src = (const uint16_t *)ssrc;
+ uint16_t *dst = (uint16_t *)ddst;
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[x << 1]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ index += ilinesize / 2;
+ src += slinesize / 2;
+ dst += dlinesize / 2;
+ }
+}
+
+static void pseudocolor_filter_16_10d(int max, int width, int height,
+ const uint8_t *iindex,
+ const uint8_t *ssrc,
+ uint8_t *ddst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ const uint16_t *index = (const uint16_t *)iindex;
+ const uint16_t *src = (const uint16_t *)ssrc;
+ uint16_t *dst = (uint16_t *)ddst;
+ int x, y;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[x >> 1]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ index += ilinesize / 2;
+ src += slinesize / 2;
+ dst += dlinesize / 2;
+ }
+}
+
+static void pseudocolor_filter_16_11(int max, int width, int height,
+ const uint8_t *iindex,
+ const uint8_t *ssrc,
+ uint8_t *ddst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ const uint16_t *index = (const uint16_t *)iindex;
+ const uint16_t *src = (const uint16_t *)ssrc;
+ uint16_t *dst = (uint16_t *)ddst;
+ int x, y;
+
+ ilinesize /= 2;
+ dlinesize /= 2;
+ slinesize /= 2;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[(y << 1) * ilinesize + (x << 1)]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static void pseudocolor_filter_16_11d(int max, int width, int height,
+ const uint8_t *iindex,
+ const uint8_t *ssrc,
+ uint8_t *ddst,
+ ptrdiff_t ilinesize,
+ ptrdiff_t slinesize,
+ ptrdiff_t dlinesize,
+ float *lut)
+{
+ const uint16_t *index = (const uint16_t *)iindex;
+ const uint16_t *src = (const uint16_t *)ssrc;
+ uint16_t *dst = (uint16_t *)ddst;
+ int x, y;
+
+ ilinesize /= 2;
+ dlinesize /= 2;
+ slinesize /= 2;
+
+ for (y = 0; y < height; y++) {
+ for (x = 0; x < width; x++) {
+ int v = lut[index[(y >> 1) * ilinesize + (x >> 1)]];
+
+ if (v >= 0 && v <= max) {
+ dst[x] = v;
+ } else {
+ dst[x] = src[x];
+ }
+ }
+ src += slinesize;
+ dst += dlinesize;
+ }
+}
+
+static int config_input(AVFilterLink *inlink)
+{
+ AVFilterContext *ctx = inlink->dst;
+ PseudoColorContext *s = ctx->priv;
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(inlink->format);
+ int depth, ret, hsub, vsub, color;
+
+ depth = desc->comp[0].depth;
+ s->max = (1 << depth) - 1;
+ s->nb_planes = av_pix_fmt_count_planes(inlink->format);
+
+ if (s->index >= s->nb_planes) {
+ av_log(ctx, AV_LOG_ERROR, "index out of allowed range\n");
+ return AVERROR(EINVAL);
+ }
+
+ if ((ret = av_image_fill_linesizes(s->linesize, inlink->format, inlink->w)) < 0)
+ return ret;
+
+ hsub = desc->log2_chroma_w;
+ vsub = desc->log2_chroma_h;
+ s->height[1] = s->height[2] = AV_CEIL_RSHIFT(inlink->h, vsub);
+ s->height[0] = s->height[3] = inlink->h;
+ s->width[1] = s->width[2] = AV_CEIL_RSHIFT(inlink->w, hsub);
+ s->width[0] = s->width[3] = inlink->w;
+
+ s->var_values[VAR_W] = inlink->w;
+ s->var_values[VAR_H] = inlink->h;
+
+ s->var_values[VAR_YMIN] = 16 * (1 << (depth - 8));
+ s->var_values[VAR_UMIN] = 16 * (1 << (depth - 8));
+ s->var_values[VAR_VMIN] = 16 * (1 << (depth - 8));
+ s->var_values[VAR_AMIN] = 0;
+ s->var_values[VAR_YMAX] = 235 * (1 << (depth - 8));
+ s->var_values[VAR_UMAX] = 240 * (1 << (depth - 8));
+ s->var_values[VAR_VMAX] = 240 * (1 << (depth - 8));
+ s->var_values[VAR_AMAX] = s->max;
+
+ for (color = 0; color < s->nb_planes; color++) {
+ double res;
+ int val;
+
+ /* create the parsed expression */
+ av_expr_free(s->comp_expr[color]);
+ s->comp_expr[color] = NULL;
+ ret = av_expr_parse(&s->comp_expr[color], s->comp_expr_str[color],
+ var_names, NULL, NULL, NULL, NULL, 0, ctx);
+ if (ret < 0) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Error when parsing the expression '%s' for the component %d and color %d.\n",
+ s->comp_expr_str[color], color, color);
+ return AVERROR(EINVAL);
+ }
+
+ /* compute the lut */
+ for (val = 0; val < FF_ARRAY_ELEMS(s->lut[color]); val++) {
+ s->var_values[VAR_VAL] = val;
+
+ res = av_expr_eval(s->comp_expr[color], s->var_values, s);
+ if (isnan(res)) {
+ av_log(ctx, AV_LOG_ERROR,
+ "Error when evaluating the expression '%s' for the value %d for the component %d.\n",
+ s->comp_expr_str[color], val, color);
+ return AVERROR(EINVAL);
+ }
+ s->lut[color][val] = res;
+ }
+ }
+
+ switch (inlink->format) {
+ case AV_PIX_FMT_YUV444P:
+ case AV_PIX_FMT_YUVA444P:
+ case AV_PIX_FMT_GBRP:
+ case AV_PIX_FMT_GBRAP:
+ case AV_PIX_FMT_GRAY8:
+ s->filter[0] = s->filter[1] = s->filter[2] = s->filter[3] = pseudocolor_filter;
+ break;
+ case AV_PIX_FMT_YUV420P:
+ case AV_PIX_FMT_YUVA420P:
+ switch (s->index) {
+ case 0:
+ case 3:
+ s->filter[0] = s->filter[3] = pseudocolor_filter;
+ s->filter[1] = s->filter[2] = pseudocolor_filter_11;
+ break;
+ case 1:
+ case 2:
+ s->filter[0] = s->filter[3] = pseudocolor_filter_11d;
+ s->filter[1] = s->filter[2] = pseudocolor_filter;
+ break;
+ }
+ break;
+ case AV_PIX_FMT_YUV422P:
+ case AV_PIX_FMT_YUVA422P:
+ switch (s->index) {
+ case 0:
+ case 3:
+ s->filter[0] = s->filter[3] = pseudocolor_filter;
+ s->filter[1] = s->filter[2] = pseudocolor_filter_10;
+ break;
+ case 1:
+ case 2:
+ s->filter[0] = s->filter[3] = pseudocolor_filter_10d;
+ s->filter[1] = s->filter[2] = pseudocolor_filter;
+ break;
+ }
+ break;
+ case AV_PIX_FMT_YUV444P9:
+ case AV_PIX_FMT_YUVA444P9:
+ case AV_PIX_FMT_YUV444P10:
+ case AV_PIX_FMT_YUVA444P10:
+ case AV_PIX_FMT_YUV444P12:
+ case AV_PIX_FMT_YUV444P14:
+ case AV_PIX_FMT_YUV444P16:
+ case AV_PIX_FMT_YUVA444P16:
+ case AV_PIX_FMT_GBRP10:
+ case AV_PIX_FMT_GBRAP10:
+ case AV_PIX_FMT_GBRP16:
+ case AV_PIX_FMT_GBRAP16:
+ case AV_PIX_FMT_GRAY10:
+ case AV_PIX_FMT_GRAY16:
+ s->filter[0] = s->filter[1] = s->filter[2] = s->filter[3] = pseudocolor_filter_16;
+ break;
+ case AV_PIX_FMT_YUV422P9:
+ case AV_PIX_FMT_YUVA422P9:
+ case AV_PIX_FMT_YUV422P10:
+ case AV_PIX_FMT_YUVA422P10:
+ case AV_PIX_FMT_YUV422P12:
+ case AV_PIX_FMT_YUV422P14:
+ case AV_PIX_FMT_YUV422P16:
+ case AV_PIX_FMT_YUVA422P16:
+ switch (s->index) {
+ case 0:
+ case 3:
+ s->filter[0] = s->filter[3] = pseudocolor_filter_16;
+ s->filter[1] = s->filter[2] = pseudocolor_filter_16_10;
+ break;
+ case 1:
+ case 2:
+ s->filter[0] = s->filter[3] = pseudocolor_filter_16_10d;
+ s->filter[1] = s->filter[2] = pseudocolor_filter_16;
+ break;
+ }
+ break;
+ case AV_PIX_FMT_YUV420P9:
+ case AV_PIX_FMT_YUVA420P9:
+ case AV_PIX_FMT_YUV420P10:
+ case AV_PIX_FMT_YUVA420P10:
+ case AV_PIX_FMT_YUV420P12:
+ case AV_PIX_FMT_YUV420P14:
+ case AV_PIX_FMT_YUV420P16:
+ case AV_PIX_FMT_YUVA420P16:
+ switch (s->index) {
+ case 0:
+ case 3:
+ s->filter[0] = s->filter[3] = pseudocolor_filter_16;
+ s->filter[1] = s->filter[2] = pseudocolor_filter_16_11;
+ break;
+ case 1:
+ case 2:
+ s->filter[0] = s->filter[3] = pseudocolor_filter_16_11d;
+ s->filter[1] = s->filter[2] = pseudocolor_filter_16;
+ break;
+ }
+ break;
+ }
+
+ return 0;
+}
+
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+ AVFilterContext *ctx = inlink->dst;
+ PseudoColorContext *s = ctx->priv;
+ AVFilterLink *outlink = ctx->outputs[0];
+ AVFrame *out;
+ int plane;
+
+ 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);
+
+ for (plane = 0; plane < s->nb_planes; plane++) {
+ const uint8_t *index = in->data[s->index];
+ const uint8_t *src = in->data[plane];
+ uint8_t *dst = out->data[plane];
+ ptrdiff_t ilinesize = in->linesize[s->index];
+ ptrdiff_t slinesize = in->linesize[plane];
+ ptrdiff_t dlinesize = out->linesize[plane];
+
+ s->filter[plane](s->max, s->width[plane], s->height[plane],
+ index, src, dst, ilinesize, slinesize,
+ dlinesize, s->lut[plane]);
+ }
+
+ av_frame_free(&in);
+ return ff_filter_frame(outlink, out);
+}
+
+static const AVFilterPad inputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .filter_frame = filter_frame,
+ .config_props = config_input,
+ },
+ { NULL }
+};
+
+static const AVFilterPad outputs[] = {
+ {
+ .name = "default",
+ .type = AVMEDIA_TYPE_VIDEO,
+ },
+ { NULL }
+};
+
+static av_cold void uninit(AVFilterContext *ctx)
+{
+ PseudoColorContext *s = ctx->priv;
+ int i;
+
+ for (i = 0; i < 4; i++) {
+ av_expr_free(s->comp_expr[i]);
+ s->comp_expr[i] = NULL;
+ }
+}
+
+AVFILTER_DEFINE_CLASS(pseudocolor);
+
+AVFilter ff_vf_pseudocolor = {
+ .name = "pseudocolor",
+ .description = NULL_IF_CONFIG_SMALL("Make pseudocolored video frames."),
+ .priv_size = sizeof(PseudoColorContext),
+ .priv_class = &pseudocolor_class,
+ .uninit = uninit,
+ .query_formats = query_formats,
+ .inputs = inputs,
+ .outputs = outputs,
+ .flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-21 05:36:42 +0000