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/* |
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* Copyright (c) 2015 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 "float.h" |
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#include "libavutil/avstring.h" |
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#include "libavutil/eval.h" |
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#include "libavutil/intreadwrite.h" |
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#include "libavutil/opt.h" |
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#include "avfilter.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 DrawGraphContext { |
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const AVClass *class; |
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char *key[4]; |
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float min, max; |
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char *fg_str[4]; |
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AVExpr *fg_expr[4]; |
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uint8_t bg[4]; |
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int mode; |
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int slide; |
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int w, h; |
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AVRational frame_rate; |
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AVFrame *out; |
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int x; |
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int prev_y[4]; |
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int first[4]; |
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float *values[4]; |
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int values_size[4]; |
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int nb_values; |
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int64_t prev_pts; |
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} DrawGraphContext; |
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#define OFFSET(x) offsetof(DrawGraphContext, x) |
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#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
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static const AVOption drawgraph_options[] = { |
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{ "m1", "set 1st metadata key", OFFSET(key[0]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS }, |
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{ "fg1", "set 1st foreground color expression", OFFSET(fg_str[0]), AV_OPT_TYPE_STRING, {.str="0xffff0000"}, 0, 0, FLAGS }, |
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{ "m2", "set 2nd metadata key", OFFSET(key[1]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS }, |
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{ "fg2", "set 2nd foreground color expression", OFFSET(fg_str[1]), AV_OPT_TYPE_STRING, {.str="0xff00ff00"}, 0, 0, FLAGS }, |
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{ "m3", "set 3rd metadata key", OFFSET(key[2]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS }, |
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{ "fg3", "set 3rd foreground color expression", OFFSET(fg_str[2]), AV_OPT_TYPE_STRING, {.str="0xffff00ff"}, 0, 0, FLAGS }, |
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{ "m4", "set 4th metadata key", OFFSET(key[3]), AV_OPT_TYPE_STRING, {.str=""}, 0, 0, FLAGS }, |
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{ "fg4", "set 4th foreground color expression", OFFSET(fg_str[3]), AV_OPT_TYPE_STRING, {.str="0xffffff00"}, 0, 0, FLAGS }, |
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{ "bg", "set background color", OFFSET(bg), AV_OPT_TYPE_COLOR, {.str="white"}, 0, 0, FLAGS }, |
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{ "min", "set minimal value", OFFSET(min), AV_OPT_TYPE_FLOAT, {.dbl=-1.}, INT_MIN, INT_MAX, FLAGS }, |
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{ "max", "set maximal value", OFFSET(max), AV_OPT_TYPE_FLOAT, {.dbl=1.}, INT_MIN, INT_MAX, FLAGS }, |
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{ "mode", "set graph mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=2}, 0, 2, FLAGS, "mode" }, |
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{"bar", "draw bars", OFFSET(mode), AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "mode"}, |
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{"dot", "draw dots", OFFSET(mode), AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "mode"}, |
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{"line", "draw lines", OFFSET(mode), AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "mode"}, |
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{ "slide", "set slide mode", OFFSET(slide), AV_OPT_TYPE_INT, {.i64=0}, 0, 4, FLAGS, "slide" }, |
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{"frame", "draw new frames", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "slide"}, |
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{"replace", "replace old columns with new", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "slide"}, |
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{"scroll", "scroll from right to left", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=2}, 0, 0, FLAGS, "slide"}, |
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{"rscroll", "scroll from left to right", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=3}, 0, 0, FLAGS, "slide"}, |
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{"picture", "display graph in single frame", OFFSET(slide), AV_OPT_TYPE_CONST, {.i64=4}, 0, 0, FLAGS, "slide"}, |
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{ "size", "set graph size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="900x256"}, 0, 0, FLAGS }, |
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{ "s", "set graph size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str="900x256"}, 0, 0, FLAGS }, |
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{ "rate", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS }, |
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{ "r", "set video rate", OFFSET(frame_rate), AV_OPT_TYPE_VIDEO_RATE, {.str="25"}, 0, INT_MAX, FLAGS }, |
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{ NULL } |
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}; |
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static const char *const var_names[] = { "MAX", "MIN", "VAL", NULL }; |
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enum { VAR_MAX, VAR_MIN, VAR_VAL, VAR_VARS_NB }; |
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static av_cold int init(AVFilterContext *ctx) |
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{ |
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DrawGraphContext *s = ctx->priv; |
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int ret, i; |
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if (s->max <= s->min) { |
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av_log(ctx, AV_LOG_ERROR, "max is same or lower than min\n"); |
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return AVERROR(EINVAL); |
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} |
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for (i = 0; i < 4; i++) { |
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if (s->fg_str[i]) { |
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ret = av_expr_parse(&s->fg_expr[i], s->fg_str[i], var_names, |
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NULL, NULL, NULL, NULL, 0, ctx); |
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if (ret < 0) |
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return ret; |
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} |
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} |
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s->first[0] = s->first[1] = s->first[2] = s->first[3] = 1; |
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if (s->slide == 4) { |
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s->values[0] = av_fast_realloc(NULL, &s->values_size[0], 2000); |
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s->values[1] = av_fast_realloc(NULL, &s->values_size[1], 2000); |
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s->values[2] = av_fast_realloc(NULL, &s->values_size[2], 2000); |
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s->values[3] = av_fast_realloc(NULL, &s->values_size[3], 2000); |
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if (!s->values[0] || !s->values[1] || |
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!s->values[2] || !s->values[3]) { |
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return AVERROR(ENOMEM); |
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} |
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} |
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return 0; |
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} |
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static int query_formats(AVFilterContext *ctx) |
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{ |
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AVFilterLink *outlink = ctx->outputs[0]; |
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static const enum AVPixelFormat pix_fmts[] = { |
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AV_PIX_FMT_RGBA, |
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AV_PIX_FMT_NONE |
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}; |
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int ret; |
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AVFilterFormats *fmts_list = ff_make_format_list(pix_fmts); |
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if ((ret = ff_formats_ref(fmts_list, &outlink->in_formats)) < 0) |
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return ret; |
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return 0; |
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} |
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static void clear_image(DrawGraphContext *s, AVFrame *out, AVFilterLink *outlink) |
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{ |
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int i, j; |
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int bg = AV_RN32(s->bg); |
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for (i = 0; i < out->height; i++) |
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for (j = 0; j < out->width; j++) |
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AV_WN32(out->data[0] + i * out->linesize[0] + j * 4, bg); |
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} |
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static inline void draw_dot(int fg, int x, int y, AVFrame *out) |
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{ |
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AV_WN32(out->data[0] + y * out->linesize[0] + x * 4, fg); |
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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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DrawGraphContext *s = ctx->priv; |
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AVFilterLink *outlink = ctx->outputs[0]; |
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AVDictionary *metadata; |
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AVDictionaryEntry *e; |
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AVFrame *out = s->out; |
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AVFrame *clone = NULL; |
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int64_t in_pts, out_pts; |
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int i; |
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if (s->slide == 4 && s->nb_values >= s->values_size[0] / sizeof(float)) { |
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float *ptr; |
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ptr = av_fast_realloc(s->values[0], &s->values_size[0], s->values_size[0] * 2); |
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if (!ptr) |
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return AVERROR(ENOMEM); |
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s->values[0] = ptr; |
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ptr = av_fast_realloc(s->values[1], &s->values_size[1], s->values_size[1] * 2); |
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if (!ptr) |
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return AVERROR(ENOMEM); |
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s->values[1] = ptr; |
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ptr = av_fast_realloc(s->values[2], &s->values_size[2], s->values_size[2] * 2); |
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if (!ptr) |
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return AVERROR(ENOMEM); |
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s->values[2] = ptr; |
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ptr = av_fast_realloc(s->values[3], &s->values_size[3], s->values_size[3] * 2); |
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if (!ptr) |
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return AVERROR(ENOMEM); |
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s->values[3] = ptr; |
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} |
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if (s->slide != 4 || s->nb_values == 0) { |
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if (!s->out || s->out->width != outlink->w || |
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s->out->height != outlink->h) { |
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av_frame_free(&s->out); |
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s->out = ff_get_video_buffer(outlink, outlink->w, outlink->h); |
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out = s->out; |
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if (!s->out) { |
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av_frame_free(&in); |
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return AVERROR(ENOMEM); |
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} |
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clear_image(s, out, outlink); |
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} |
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av_frame_copy_props(out, in); |
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} |
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metadata = in->metadata; |
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for (i = 0; i < 4; i++) { |
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double values[VAR_VARS_NB]; |
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int j, y, x, old; |
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uint32_t fg, bg; |
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float vf; |
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if (s->slide == 4) |
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s->values[i][s->nb_values] = NAN; |
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e = av_dict_get(metadata, s->key[i], NULL, 0); |
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if (!e || !e->value) |
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continue; |
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225 |
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if (av_sscanf(e->value, "%f", &vf) != 1) |
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continue; |
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vf = av_clipf(vf, s->min, s->max); |
229 |
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230 |
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if (s->slide == 4) { |
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s->values[i][s->nb_values] = vf; |
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continue; |
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} |
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values[VAR_MIN] = s->min; |
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values[VAR_MAX] = s->max; |
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values[VAR_VAL] = vf; |
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fg = av_expr_eval(s->fg_expr[i], values, NULL); |
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bg = AV_RN32(s->bg); |
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if (i == 0 && (s->x >= outlink->w || s->slide == 3)) { |
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if (s->slide == 0 || s->slide == 1) |
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s->x = 0; |
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246 |
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if (s->slide == 2) { |
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s->x = outlink->w - 1; |
248 |
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for (j = 0; j < outlink->h; j++) { |
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memmove(out->data[0] + j * out->linesize[0] , |
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out->data[0] + j * out->linesize[0] + 4, |
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(outlink->w - 1) * 4); |
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} |
253 |
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} else if (s->slide == 3) { |
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s->x = 0; |
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for (j = 0; j < outlink->h; j++) { |
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memmove(out->data[0] + j * out->linesize[0] + 4, |
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out->data[0] + j * out->linesize[0], |
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(outlink->w - 1) * 4); |
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} |
260 |
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} else if (s->slide == 0) { |
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clear_image(s, out, outlink); |
262 |
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} |
263 |
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} |
264 |
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265 |
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x = s->x; |
266 |
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y = (outlink->h - 1) * (1 - ((vf - s->min) / (s->max - s->min))); |
267 |
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268 |
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switch (s->mode) { |
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case 0: |
270 |
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if (i == 0 && (s->slide > 0)) |
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for (j = 0; j < outlink->h; j++) |
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draw_dot(bg, x, j, out); |
273 |
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old = AV_RN32(out->data[0] + y * out->linesize[0] + x * 4); |
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for (j = y; j < outlink->h; j++) { |
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if (old != bg && |
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(AV_RN32(out->data[0] + j * out->linesize[0] + x * 4) != old) || |
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AV_RN32(out->data[0] + FFMIN(j+1, outlink->h - 1) * out->linesize[0] + x * 4) != old) { |
279 |
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draw_dot(fg, x, j, out); |
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break; |
281 |
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} |
282 |
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draw_dot(fg, x, j, out); |
283 |
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} |
284 |
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break; |
285 |
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case 1: |
286 |
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if (i == 0 && (s->slide > 0)) |
287 |
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for (j = 0; j < outlink->h; j++) |
288 |
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draw_dot(bg, x, j, out); |
289 |
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draw_dot(fg, x, y, out); |
290 |
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break; |
291 |
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case 2: |
292 |
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if (s->first[i]) { |
293 |
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s->first[i] = 0; |
294 |
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s->prev_y[i] = y; |
295 |
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} |
296 |
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297 |
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if (i == 0 && (s->slide > 0)) { |
298 |
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for (j = 0; j < y; j++) |
299 |
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draw_dot(bg, x, j, out); |
300 |
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for (j = outlink->h - 1; j > y; j--) |
301 |
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draw_dot(bg, x, j, out); |
302 |
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} |
303 |
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if (y <= s->prev_y[i]) { |
304 |
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for (j = y; j <= s->prev_y[i]; j++) |
305 |
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draw_dot(fg, x, j, out); |
306 |
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} else { |
307 |
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for (j = s->prev_y[i]; j <= y; j++) |
308 |
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draw_dot(fg, x, j, out); |
309 |
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} |
310 |
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s->prev_y[i] = y; |
311 |
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break; |
312 |
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} |
313 |
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} |
314 |
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315 |
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s->nb_values++; |
316 |
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s->x++; |
317 |
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318 |
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in_pts = in->pts; |
319 |
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320 |
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av_frame_free(&in); |
321 |
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322 |
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if (s->slide == 4) |
323 |
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return 0; |
324 |
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325 |
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out_pts = av_rescale_q(in_pts, inlink->time_base, outlink->time_base); |
326 |
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327 |
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if (out_pts == s->prev_pts) |
328 |
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return 0; |
329 |
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|
330 |
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clone = av_frame_clone(s->out); |
331 |
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if (!clone) |
332 |
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return AVERROR(ENOMEM); |
333 |
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|
334 |
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clone->pts = s->prev_pts = out_pts; |
335 |
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return ff_filter_frame(outlink, clone); |
336 |
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} |
337 |
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|
338 |
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static int request_frame(AVFilterLink *outlink) |
339 |
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{ |
340 |
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AVFilterContext *ctx = outlink->src; |
341 |
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DrawGraphContext *s = ctx->priv; |
342 |
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AVFrame *out = s->out; |
343 |
|
|
int ret, i, k, step, l; |
344 |
|
|
|
345 |
|
|
ret = ff_request_frame(ctx->inputs[0]); |
346 |
|
|
|
347 |
|
|
if (s->slide == 4 && ret == AVERROR_EOF && s->nb_values > 0) { |
348 |
|
|
s->x = l = 0; |
349 |
|
|
step = ceil(s->nb_values / (float)s->w); |
350 |
|
|
|
351 |
|
|
for (k = 0; k < s->nb_values; k++) { |
352 |
|
|
for (i = 0; i < 4; i++) { |
353 |
|
|
double values[VAR_VARS_NB]; |
354 |
|
|
int j, y, x, old; |
355 |
|
|
uint32_t fg, bg; |
356 |
|
|
float vf = s->values[i][k]; |
357 |
|
|
|
358 |
|
|
if (isnan(vf)) |
359 |
|
|
continue; |
360 |
|
|
|
361 |
|
|
values[VAR_MIN] = s->min; |
362 |
|
|
values[VAR_MAX] = s->max; |
363 |
|
|
values[VAR_VAL] = vf; |
364 |
|
|
|
365 |
|
|
fg = av_expr_eval(s->fg_expr[i], values, NULL); |
366 |
|
|
bg = AV_RN32(s->bg); |
367 |
|
|
|
368 |
|
|
x = s->x; |
369 |
|
|
y = (outlink->h - 1) * (1 - ((vf - s->min) / (s->max - s->min))); |
370 |
|
|
|
371 |
|
|
switch (s->mode) { |
372 |
|
|
case 0: |
373 |
|
|
old = AV_RN32(out->data[0] + y * out->linesize[0] + x * 4); |
374 |
|
|
for (j = y; j < outlink->h; j++) { |
375 |
|
|
if (old != bg && |
376 |
|
|
(AV_RN32(out->data[0] + j * out->linesize[0] + x * 4) != old) || |
377 |
|
|
AV_RN32(out->data[0] + FFMIN(j+1, outlink->h - 1) * out->linesize[0] + x * 4) != old) { |
378 |
|
|
draw_dot(fg, x, j, out); |
379 |
|
|
break; |
380 |
|
|
} |
381 |
|
|
draw_dot(fg, x, j, out); |
382 |
|
|
} |
383 |
|
|
break; |
384 |
|
|
case 1: |
385 |
|
|
draw_dot(fg, x, y, out); |
386 |
|
|
break; |
387 |
|
|
case 2: |
388 |
|
|
if (s->first[i]) { |
389 |
|
|
s->first[i] = 0; |
390 |
|
|
s->prev_y[i] = y; |
391 |
|
|
} |
392 |
|
|
|
393 |
|
|
if (y <= s->prev_y[i]) { |
394 |
|
|
for (j = y; j <= s->prev_y[i]; j++) |
395 |
|
|
draw_dot(fg, x, j, out); |
396 |
|
|
} else { |
397 |
|
|
for (j = s->prev_y[i]; j <= y; j++) |
398 |
|
|
draw_dot(fg, x, j, out); |
399 |
|
|
} |
400 |
|
|
s->prev_y[i] = y; |
401 |
|
|
break; |
402 |
|
|
} |
403 |
|
|
} |
404 |
|
|
|
405 |
|
|
l++; |
406 |
|
|
if (l >= step) { |
407 |
|
|
l = 0; |
408 |
|
|
s->x++; |
409 |
|
|
} |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
s->nb_values = 0; |
413 |
|
|
out->pts = 0; |
414 |
|
|
ret = ff_filter_frame(ctx->outputs[0], s->out); |
415 |
|
|
} |
416 |
|
|
|
417 |
|
|
return ret; |
418 |
|
|
} |
419 |
|
|
|
420 |
|
|
static int config_output(AVFilterLink *outlink) |
421 |
|
|
{ |
422 |
|
|
DrawGraphContext *s = outlink->src->priv; |
423 |
|
|
|
424 |
|
|
outlink->w = s->w; |
425 |
|
|
outlink->h = s->h; |
426 |
|
|
outlink->sample_aspect_ratio = (AVRational){1,1}; |
427 |
|
|
outlink->frame_rate = s->frame_rate; |
428 |
|
|
outlink->time_base = av_inv_q(outlink->frame_rate); |
429 |
|
|
s->prev_pts = AV_NOPTS_VALUE; |
430 |
|
|
|
431 |
|
|
return 0; |
432 |
|
|
} |
433 |
|
|
|
434 |
|
|
static av_cold void uninit(AVFilterContext *ctx) |
435 |
|
|
{ |
436 |
|
|
DrawGraphContext *s = ctx->priv; |
437 |
|
|
int i; |
438 |
|
|
|
439 |
|
|
for (i = 0; i < 4; i++) |
440 |
|
|
av_expr_free(s->fg_expr[i]); |
441 |
|
|
|
442 |
|
|
if (s->slide != 4) |
443 |
|
|
av_frame_free(&s->out); |
444 |
|
|
|
445 |
|
|
av_freep(&s->values[0]); |
446 |
|
|
av_freep(&s->values[1]); |
447 |
|
|
av_freep(&s->values[2]); |
448 |
|
|
av_freep(&s->values[3]); |
449 |
|
|
} |
450 |
|
|
|
451 |
|
|
#if CONFIG_DRAWGRAPH_FILTER |
452 |
|
|
|
453 |
|
|
AVFILTER_DEFINE_CLASS(drawgraph); |
454 |
|
|
|
455 |
|
|
static const AVFilterPad drawgraph_inputs[] = { |
456 |
|
|
{ |
457 |
|
|
.name = "default", |
458 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
459 |
|
|
.filter_frame = filter_frame, |
460 |
|
|
}, |
461 |
|
|
{ NULL } |
462 |
|
|
}; |
463 |
|
|
|
464 |
|
|
static const AVFilterPad drawgraph_outputs[] = { |
465 |
|
|
{ |
466 |
|
|
.name = "default", |
467 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
468 |
|
|
.config_props = config_output, |
469 |
|
|
.request_frame = request_frame, |
470 |
|
|
}, |
471 |
|
|
{ NULL } |
472 |
|
|
}; |
473 |
|
|
|
474 |
|
|
AVFilter ff_vf_drawgraph = { |
475 |
|
|
.name = "drawgraph", |
476 |
|
|
.description = NULL_IF_CONFIG_SMALL("Draw a graph using input video metadata."), |
477 |
|
|
.priv_size = sizeof(DrawGraphContext), |
478 |
|
|
.priv_class = &drawgraph_class, |
479 |
|
|
.query_formats = query_formats, |
480 |
|
|
.init = init, |
481 |
|
|
.uninit = uninit, |
482 |
|
|
.inputs = drawgraph_inputs, |
483 |
|
|
.outputs = drawgraph_outputs, |
484 |
|
|
}; |
485 |
|
|
|
486 |
|
|
#endif // CONFIG_DRAWGRAPH_FILTER |
487 |
|
|
|
488 |
|
|
#if CONFIG_ADRAWGRAPH_FILTER |
489 |
|
|
|
490 |
|
|
#define adrawgraph_options drawgraph_options |
491 |
|
|
AVFILTER_DEFINE_CLASS(adrawgraph); |
492 |
|
|
|
493 |
|
|
static const AVFilterPad adrawgraph_inputs[] = { |
494 |
|
|
{ |
495 |
|
|
.name = "default", |
496 |
|
|
.type = AVMEDIA_TYPE_AUDIO, |
497 |
|
|
.filter_frame = filter_frame, |
498 |
|
|
}, |
499 |
|
|
{ NULL } |
500 |
|
|
}; |
501 |
|
|
|
502 |
|
|
static const AVFilterPad adrawgraph_outputs[] = { |
503 |
|
|
{ |
504 |
|
|
.name = "default", |
505 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
506 |
|
|
.config_props = config_output, |
507 |
|
|
.request_frame = request_frame, |
508 |
|
|
}, |
509 |
|
|
{ NULL } |
510 |
|
|
}; |
511 |
|
|
|
512 |
|
|
AVFilter ff_avf_adrawgraph = { |
513 |
|
|
.name = "adrawgraph", |
514 |
|
|
.description = NULL_IF_CONFIG_SMALL("Draw a graph using input audio metadata."), |
515 |
|
|
.priv_size = sizeof(DrawGraphContext), |
516 |
|
|
.priv_class = &adrawgraph_class, |
517 |
|
|
.query_formats = query_formats, |
518 |
|
|
.init = init, |
519 |
|
|
.uninit = uninit, |
520 |
|
|
.inputs = adrawgraph_inputs, |
521 |
|
|
.outputs = adrawgraph_outputs, |
522 |
|
|
}; |
523 |
|
|
#endif // CONFIG_ADRAWGRAPH_FILTER |