399 lines
13 KiB
C
399 lines
13 KiB
C
/*
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* Copyright (c) 2016 Paul B Mahol
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*
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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/avassert.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/opt.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/xga_font_data.h"
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#include "avfilter.h"
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#include "drawutils.h"
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#include "formats.h"
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#include "internal.h"
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#include "video.h"
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typedef struct DatascopeContext {
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const AVClass *class;
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int ow, oh;
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int x, y;
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int mode;
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int axis;
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int nb_planes;
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int nb_comps;
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int chars;
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FFDrawContext draw;
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FFDrawColor yellow;
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FFDrawColor white;
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FFDrawColor black;
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FFDrawColor gray;
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int (*filter)(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs);
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} DatascopeContext;
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#define OFFSET(x) offsetof(DatascopeContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption datascope_options[] = {
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{ "size", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
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{ "s", "set output size", OFFSET(ow), AV_OPT_TYPE_IMAGE_SIZE, {.str="hd720"}, 0, 0, FLAGS },
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{ "x", "set x offset", OFFSET(x), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
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{ "y", "set y offset", OFFSET(y), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS },
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{ "mode", "set scope mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 2, FLAGS, "mode" },
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{ "mono", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode" },
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{ "color", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode" },
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{ "color2", NULL, 0, AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode" },
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{ "axis", "draw column/row numbers", OFFSET(axis), 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(datascope);
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static int query_formats(AVFilterContext *ctx)
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{
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return ff_set_common_formats(ctx, ff_draw_supported_pixel_formats(0));
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}
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static void draw_text(DatascopeContext *s, AVFrame *frame, FFDrawColor *color,
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int x0, int y0, const uint8_t *text, int vertical)
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{
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int x = x0;
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for (; *text; text++) {
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if (*text == '\n') {
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x = x0;
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y0 += 8;
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continue;
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}
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ff_blend_mask(&s->draw, color, frame->data, frame->linesize,
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frame->width, frame->height,
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avpriv_cga_font + *text * 8, 1, 8, 8, 0, 0, x, y0);
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if (vertical) {
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x = x0;
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y0 += 8;
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} else {
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x += 8;
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}
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}
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}
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static void pick_color(FFDrawContext *draw, FFDrawColor *color, AVFrame *in, int x, int y, int *value)
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{
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int p, i;
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color->rgba[3] = 255;
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for (p = 0; p < draw->nb_planes; p++) {
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if (draw->desc->comp[p].depth == 8) {
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if (draw->nb_planes == 1) {
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for (i = 0; i < 4; i++) {
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value[i] = in->data[0][y * in->linesize[0] + x * draw->pixelstep[0] + i];
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color->comp[0].u8[i] = value[i];
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}
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} else {
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value[p] = in->data[p][(y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p])];
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color->comp[p].u8[0] = value[p];
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}
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} else {
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if (draw->nb_planes == 1) {
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for (i = 0; i < 4; i++) {
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value[i] = AV_RL16(in->data[0] + y * in->linesize[0] + x * draw->pixelstep[0] + i * 2);
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color->comp[0].u16[i] = value[i];
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}
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} else {
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value[p] = AV_RL16(in->data[p] + (y >> draw->vsub[p]) * in->linesize[p] + (x >> draw->hsub[p]) * 2);
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color->comp[p].u16[0] = value[p];
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}
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}
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}
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}
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static void reverse_color(FFDrawContext *draw, FFDrawColor *color, FFDrawColor *reverse)
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{
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int p;
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reverse->rgba[3] = 255;
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for (p = 0; p < draw->nb_planes; p++) {
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if (draw->desc->comp[p].depth == 8) {
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reverse->comp[p].u8[0] = color->comp[p].u8[0] > 127 ? 0 : 255;
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reverse->comp[p].u8[1] = color->comp[p].u8[1] > 127 ? 0 : 255;
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reverse->comp[p].u8[2] = color->comp[p].u8[2] > 127 ? 0 : 255;
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reverse->comp[p].u8[3] = color->comp[p].u8[3] > 127 ? 0 : 255;
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} else {
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const unsigned max = (1 << draw->desc->comp[p].depth) - 1;
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const unsigned mid = (max + 1) / 2;
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reverse->comp[p].u16[0] = color->comp[p].u16[0] > mid ? 0 : max;
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reverse->comp[p].u16[1] = color->comp[p].u16[1] > mid ? 0 : max;
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reverse->comp[p].u16[2] = color->comp[p].u16[2] > mid ? 0 : max;
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reverse->comp[p].u16[3] = color->comp[p].u16[3] > mid ? 0 : max;
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}
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}
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}
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typedef struct ThreadData {
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AVFrame *in, *out;
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int xoff, yoff;
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} ThreadData;
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static int filter_color2(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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DatascopeContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFilterLink *inlink = ctx->inputs[0];
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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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const int xoff = td->xoff;
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const int yoff = td->yoff;
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const int P = FFMAX(s->nb_planes, s->nb_comps);
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const int C = s->chars;
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const int W = (outlink->w - xoff) / (C * 10);
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const int H = (outlink->h - yoff) / (P * 12);
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const char *format[2] = {"%02X\n", "%04X\n"};
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const int slice_start = (W * jobnr) / nb_jobs;
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const int slice_end = (W * (jobnr+1)) / nb_jobs;
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int x, y, p;
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for (y = 0; y < H && (y + s->y < inlink->h); y++) {
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for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
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FFDrawColor color = { { 0 } };
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FFDrawColor reverse = { { 0 } };
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int value[4] = { 0 };
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pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
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reverse_color(&s->draw, &color, &reverse);
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ff_fill_rectangle(&s->draw, &color, out->data, out->linesize,
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xoff + x * C * 10, yoff + y * P * 12, C * 10, P * 12);
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for (p = 0; p < P; p++) {
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char text[256];
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snprintf(text, sizeof(text), format[C>>2], value[p]);
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draw_text(s, out, &reverse, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
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}
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}
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}
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return 0;
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}
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static int filter_color(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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DatascopeContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFilterLink *inlink = ctx->inputs[0];
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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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const int xoff = td->xoff;
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const int yoff = td->yoff;
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const int P = FFMAX(s->nb_planes, s->nb_comps);
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const int C = s->chars;
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const int W = (outlink->w - xoff) / (C * 10);
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const int H = (outlink->h - yoff) / (P * 12);
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const char *format[2] = {"%02X\n", "%04X\n"};
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const int slice_start = (W * jobnr) / nb_jobs;
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const int slice_end = (W * (jobnr+1)) / nb_jobs;
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int x, y, p;
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for (y = 0; y < H && (y + s->y < inlink->h); y++) {
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for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
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FFDrawColor color = { { 0 } };
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int value[4] = { 0 };
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pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
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for (p = 0; p < P; p++) {
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char text[256];
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snprintf(text, sizeof(text), format[C>>2], value[p]);
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draw_text(s, out, &color, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
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}
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}
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}
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return 0;
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}
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static int filter_mono(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
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{
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DatascopeContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFilterLink *inlink = ctx->inputs[0];
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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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const int xoff = td->xoff;
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const int yoff = td->yoff;
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const int P = FFMAX(s->nb_planes, s->nb_comps);
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const int C = s->chars;
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const int W = (outlink->w - xoff) / (C * 10);
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const int H = (outlink->h - yoff) / (P * 12);
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const char *format[2] = {"%02X\n", "%04X\n"};
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const int slice_start = (W * jobnr) / nb_jobs;
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const int slice_end = (W * (jobnr+1)) / nb_jobs;
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int x, y, p;
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for (y = 0; y < H && (y + s->y < inlink->h); y++) {
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for (x = slice_start; x < slice_end && (x + s->x < inlink->w); x++) {
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FFDrawColor color = { { 0 } };
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int value[4] = { 0 };
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pick_color(&s->draw, &color, in, x + s->x, y + s->y, value);
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for (p = 0; p < P; p++) {
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char text[256];
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snprintf(text, sizeof(text), format[C>>2], value[p]);
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draw_text(s, out, &s->white, xoff + x * C * 10 + 2, yoff + y * P * 12 + p * 10 + 2, text, 0);
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}
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}
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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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DatascopeContext *s = ctx->priv;
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AVFilterLink *outlink = ctx->outputs[0];
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ThreadData td = { 0 };
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int ymaxlen = 0;
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int xmaxlen = 0;
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AVFrame *out;
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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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out->pts = in->pts;
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ff_fill_rectangle(&s->draw, &s->black, out->data, out->linesize,
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0, 0, outlink->w, outlink->h);
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if (s->axis) {
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const int P = FFMAX(s->nb_planes, s->nb_comps);
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const int C = s->chars;
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int Y = outlink->h / (P * 12);
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int X = outlink->w / (C * 10);
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char text[256] = { 0 };
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int x, y;
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snprintf(text, sizeof(text), "%d", s->y + Y);
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ymaxlen = strlen(text);
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ymaxlen *= 10;
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snprintf(text, sizeof(text), "%d", s->x + X);
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xmaxlen = strlen(text);
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xmaxlen *= 10;
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Y = (outlink->h - xmaxlen) / (P * 12);
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X = (outlink->w - ymaxlen) / (C * 10);
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for (y = 0; y < Y; y++) {
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snprintf(text, sizeof(text), "%d", s->y + y);
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ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
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0, xmaxlen + y * P * 12 + (P + 1) * P - 2, ymaxlen, 10);
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draw_text(s, out, &s->yellow, 2, xmaxlen + y * P * 12 + (P + 1) * P, text, 0);
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}
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for (x = 0; x < X; x++) {
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snprintf(text, sizeof(text), "%d", s->x + x);
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ff_fill_rectangle(&s->draw, &s->gray, out->data, out->linesize,
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ymaxlen + x * C * 10 + 2 * C - 2, 0, 10, xmaxlen);
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draw_text(s, out, &s->yellow, ymaxlen + x * C * 10 + 2 * C, 2, text, 1);
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}
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}
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td.in = in; td.out = out, td.yoff = xmaxlen, td.xoff = ymaxlen;
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ctx->internal->execute(ctx, s->filter, &td, NULL, FFMIN(ctx->graph->nb_threads, FFMAX(outlink->w / 20, 1)));
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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 config_input(AVFilterLink *inlink)
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{
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DatascopeContext *s = inlink->dst->priv;
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s->nb_planes = av_pix_fmt_count_planes(inlink->format);
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ff_draw_init(&s->draw, inlink->format, 0);
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ff_draw_color(&s->draw, &s->white, (uint8_t[]){ 255, 255, 255, 255} );
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ff_draw_color(&s->draw, &s->black, (uint8_t[]){ 0, 0, 0, 0} );
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ff_draw_color(&s->draw, &s->yellow, (uint8_t[]){ 255, 255, 0, 255} );
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ff_draw_color(&s->draw, &s->gray, (uint8_t[]){ 77, 77, 77, 255} );
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s->chars = (s->draw.desc->comp[0].depth + 7) / 8 * 2;
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s->nb_comps = s->draw.desc->nb_components;
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switch (s->mode) {
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case 0: s->filter = filter_mono; break;
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case 1: s->filter = filter_color; break;
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case 2: s->filter = filter_color2; break;
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}
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return 0;
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}
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static int config_output(AVFilterLink *outlink)
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{
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DatascopeContext *s = outlink->src->priv;
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outlink->h = s->oh;
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outlink->w = s->ow;
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outlink->sample_aspect_ratio = (AVRational){1,1};
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return 0;
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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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{ NULL }
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};
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static const AVFilterPad outputs[] = {
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{
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.name = "default",
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.type = AVMEDIA_TYPE_VIDEO,
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.config_props = config_output,
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},
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{ NULL }
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};
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AVFilter ff_vf_datascope = {
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.name = "datascope",
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.description = NULL_IF_CONFIG_SMALL("Video data analysis."),
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.priv_size = sizeof(DatascopeContext),
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.priv_class = &datascope_class,
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.query_formats = query_formats,
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.inputs = inputs,
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.outputs = outputs,
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.flags = AVFILTER_FLAG_SLICE_THREADS,
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};
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