523 lines
19 KiB
C
523 lines
19 KiB
C
/*
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* Copyright (c) 2012-2013 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/opt.h"
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#include "libavutil/parseutils.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/imgutils.h"
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#include "libavutil/intreadwrite.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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enum HistogramMode {
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MODE_LEVELS,
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MODE_WAVEFORM,
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MODE_COLOR,
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MODE_COLOR2,
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MODE_NB
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};
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typedef struct HistogramContext {
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const AVClass *class; ///< AVClass context for log and options purpose
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int mode; ///< HistogramMode
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unsigned histogram[256*256];
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int histogram_size;
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int mult;
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int ncomp;
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const uint8_t *bg_color;
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const uint8_t *fg_color;
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int level_height;
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int scale_height;
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int step;
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int waveform_mode;
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int waveform_mirror;
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int display_mode;
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int levels_mode;
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const AVPixFmtDescriptor *desc, *odesc;
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int components;
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int planewidth[4];
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int planeheight[4];
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} HistogramContext;
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#define OFFSET(x) offsetof(HistogramContext, x)
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#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
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static const AVOption histogram_options[] = {
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{ "mode", "set histogram mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=MODE_LEVELS}, 0, MODE_NB-1, FLAGS, "mode"},
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{ "levels", "standard histogram", 0, AV_OPT_TYPE_CONST, {.i64=MODE_LEVELS}, 0, 0, FLAGS, "mode" },
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{ "waveform", "per row/column luminance graph", 0, AV_OPT_TYPE_CONST, {.i64=MODE_WAVEFORM}, 0, 0, FLAGS, "mode" },
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{ "color", "chroma values in vectorscope", 0, AV_OPT_TYPE_CONST, {.i64=MODE_COLOR}, 0, 0, FLAGS, "mode" },
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{ "color2", "chroma values in vectorscope", 0, AV_OPT_TYPE_CONST, {.i64=MODE_COLOR2}, 0, 0, FLAGS, "mode" },
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{ "level_height", "set level height", OFFSET(level_height), AV_OPT_TYPE_INT, {.i64=200}, 50, 2048, FLAGS},
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{ "scale_height", "set scale height", OFFSET(scale_height), AV_OPT_TYPE_INT, {.i64=12}, 0, 40, FLAGS},
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{ "step", "set waveform step value", OFFSET(step), AV_OPT_TYPE_INT, {.i64=10}, 1, 255, FLAGS},
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{ "waveform_mode", "set waveform mode", OFFSET(waveform_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "waveform_mode"},
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{ "row", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "waveform_mode" },
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{ "column", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "waveform_mode" },
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{ "waveform_mirror", "set waveform mirroring", OFFSET(waveform_mirror), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "waveform_mirror"},
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{ "display_mode", "set display mode", OFFSET(display_mode), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "display_mode"},
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{ "parade", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "display_mode" },
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{ "overlay", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "display_mode" },
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{ "levels_mode", "set levels mode", OFFSET(levels_mode), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "levels_mode"},
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{ "linear", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "levels_mode" },
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{ "logarithmic", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "levels_mode" },
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{ "components", "set color components to display", OFFSET(components), AV_OPT_TYPE_INT, {.i64=7}, 1, 15, FLAGS},
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(histogram);
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static const enum AVPixelFormat color_pix_fmts[] = {
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_in_pix_fmts[] = {
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AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
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AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUVJ411P,
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AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
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AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
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AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRP,
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AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_GRAY8,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_out_yuv8_pix_fmts[] = {
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_out_yuv9_pix_fmts[] = {
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AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUV444P9,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_out_yuv10_pix_fmts[] = {
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AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUV444P10,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_out_rgb8_pix_fmts[] = {
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AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRP,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_out_rgb9_pix_fmts[] = {
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AV_PIX_FMT_GBRP9,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat levels_out_rgb10_pix_fmts[] = {
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AV_PIX_FMT_GBRP10,
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AV_PIX_FMT_NONE
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};
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static const enum AVPixelFormat waveform_pix_fmts[] = {
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AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRAP,
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AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUV420P,
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AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
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AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
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AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUVJ420P,
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AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ444P,
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AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUVA420P,
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AV_PIX_FMT_GRAY8,
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AV_PIX_FMT_NONE
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};
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static int query_formats(AVFilterContext *ctx)
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{
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HistogramContext *h = ctx->priv;
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const enum AVPixelFormat *pix_fmts;
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AVFilterFormats *fmts_list;
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switch (h->mode) {
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case MODE_WAVEFORM:
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pix_fmts = waveform_pix_fmts;
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break;
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case MODE_LEVELS:
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{
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AVFilterFormats *avff;
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const AVPixFmtDescriptor *desc;
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const enum AVPixelFormat *out_pix_fmts;
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int rgb, i, bits;
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if (!ctx->inputs[0]->in_formats ||
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!ctx->inputs[0]->in_formats->nb_formats) {
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return AVERROR(EAGAIN);
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}
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if (!ctx->inputs[0]->out_formats)
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ff_formats_ref(ff_make_format_list(levels_in_pix_fmts), &ctx->inputs[0]->out_formats);
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avff = ctx->inputs[0]->in_formats;
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desc = av_pix_fmt_desc_get(avff->formats[0]);
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rgb = desc->flags & AV_PIX_FMT_FLAG_RGB;
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bits = desc->comp[0].depth_minus1;
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for (i = 1; i < avff->nb_formats; i++) {
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desc = av_pix_fmt_desc_get(avff->formats[i]);
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if ((rgb != desc->flags & AV_PIX_FMT_FLAG_RGB) ||
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(bits != desc->comp[0].depth_minus1))
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return AVERROR(EAGAIN);
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}
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if (rgb && bits == 7)
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out_pix_fmts = levels_out_rgb8_pix_fmts;
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else if (rgb && bits == 8)
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out_pix_fmts = levels_out_rgb9_pix_fmts;
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else if (rgb && bits == 9)
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out_pix_fmts = levels_out_rgb10_pix_fmts;
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else if (bits == 7)
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out_pix_fmts = levels_out_yuv8_pix_fmts;
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else if (bits == 8)
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out_pix_fmts = levels_out_yuv9_pix_fmts;
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else // if (bits == 9)
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out_pix_fmts = levels_out_yuv10_pix_fmts;
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ff_formats_ref(ff_make_format_list(out_pix_fmts), &ctx->outputs[0]->in_formats);
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return 0;
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}
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break;
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case MODE_COLOR:
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case MODE_COLOR2:
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pix_fmts = color_pix_fmts;
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break;
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default:
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av_assert0(0);
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}
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fmts_list = ff_make_format_list(pix_fmts);
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if (!fmts_list)
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return AVERROR(ENOMEM);
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return ff_set_common_formats(ctx, fmts_list);
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}
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static const uint8_t black_yuva_color[4] = { 0, 127, 127, 255 };
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static const uint8_t black_gbrp_color[4] = { 0, 0, 0, 255 };
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static const uint8_t white_yuva_color[4] = { 255, 127, 127, 255 };
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static const uint8_t white_gbrp_color[4] = { 255, 255, 255, 255 };
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static int config_input(AVFilterLink *inlink)
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{
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HistogramContext *h = inlink->dst->priv;
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h->desc = av_pix_fmt_desc_get(inlink->format);
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h->ncomp = h->desc->nb_components;
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h->histogram_size = 1 << (h->desc->comp[0].depth_minus1 + 1);
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h->mult = h->histogram_size / 256;
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switch (inlink->format) {
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case AV_PIX_FMT_GBRP10:
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case AV_PIX_FMT_GBRP9:
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case AV_PIX_FMT_GBRAP:
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case AV_PIX_FMT_GBRP:
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h->bg_color = black_gbrp_color;
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h->fg_color = white_gbrp_color;
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break;
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default:
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h->bg_color = black_yuva_color;
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h->fg_color = white_yuva_color;
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}
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h->planeheight[1] = h->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, h->desc->log2_chroma_h);
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h->planeheight[0] = h->planeheight[3] = inlink->h;
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h->planewidth[1] = h->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, h->desc->log2_chroma_w);
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h->planewidth[0] = h->planewidth[3] = inlink->w;
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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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AVFilterContext *ctx = outlink->src;
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HistogramContext *h = ctx->priv;
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int ncomp = 0, i;
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switch (h->mode) {
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case MODE_LEVELS:
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for (i = 0; i < h->ncomp; i++) {
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if ((1 << i) & h->components)
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ncomp++;
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}
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outlink->w = h->histogram_size;
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outlink->h = (h->level_height + h->scale_height) * FFMAX(ncomp * h->display_mode, 1);
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break;
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case MODE_WAVEFORM:
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av_log(ctx, AV_LOG_WARNING, "This mode is deprecated, please use waveform filter instead.\n");
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if (h->waveform_mode)
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outlink->h = 256 * FFMAX(h->ncomp * h->display_mode, 1);
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else
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outlink->w = 256 * FFMAX(h->ncomp * h->display_mode, 1);
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break;
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case MODE_COLOR:
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case MODE_COLOR2:
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av_log(ctx, AV_LOG_WARNING, "This mode is deprecated, use vectorscope filter instead.");
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outlink->h = outlink->w = 256;
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break;
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default:
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av_assert0(0);
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}
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h->odesc = av_pix_fmt_desc_get(outlink->format);
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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 void gen_waveform(HistogramContext *h, AVFrame *inpicref, AVFrame *outpicref,
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int component, int intensity, int offset, int col_mode)
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{
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const int plane = h->desc->comp[component].plane;
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const int mirror = h->waveform_mirror;
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const int is_chroma = (component == 1 || component == 2);
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const int shift_w = (is_chroma ? h->desc->log2_chroma_w : 0);
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const int shift_h = (is_chroma ? h->desc->log2_chroma_h : 0);
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const int src_linesize = inpicref->linesize[plane];
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const int dst_linesize = outpicref->linesize[plane];
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const int dst_signed_linesize = dst_linesize * (mirror == 1 ? -1 : 1);
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uint8_t *src_data = inpicref->data[plane];
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uint8_t *dst_data = outpicref->data[plane] + (col_mode ? (offset >> shift_h) * dst_linesize : offset >> shift_w);
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uint8_t * const dst_bottom_line = dst_data + dst_linesize * ((256 >> shift_h) - 1);
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uint8_t * const dst_line = (mirror ? dst_bottom_line : dst_data);
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const uint8_t max = 255 - intensity;
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const int src_h = FF_CEIL_RSHIFT(inpicref->height, shift_h);
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const int src_w = FF_CEIL_RSHIFT(inpicref->width, shift_w);
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uint8_t *dst, *p;
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int y;
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if (!col_mode && mirror)
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dst_data += 256 >> shift_w;
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for (y = 0; y < src_h; y++) {
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const uint8_t *src_data_end = src_data + src_w;
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dst = dst_line;
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for (p = src_data; p < src_data_end; p++) {
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uint8_t *target;
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if (col_mode) {
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target = dst++ + dst_signed_linesize * (*p >> shift_h);
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} else {
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if (mirror)
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target = dst_data - (*p >> shift_w);
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else
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target = dst_data + (*p >> shift_w);
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}
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if (*target <= max)
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*target += intensity;
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else
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*target = 255;
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}
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src_data += src_linesize;
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dst_data += dst_linesize;
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}
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}
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static int filter_frame(AVFilterLink *inlink, AVFrame *in)
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{
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HistogramContext *h = inlink->dst->priv;
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AVFilterContext *ctx = inlink->dst;
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AVFilterLink *outlink = ctx->outputs[0];
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AVFrame *out;
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uint8_t *dst;
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int i, j, k, l, m;
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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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for (k = 0; k < 4 && out->data[k]; k++) {
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const int is_chroma = (k == 1 || k == 2);
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const int dst_h = FF_CEIL_RSHIFT(outlink->h, (is_chroma ? h->odesc->log2_chroma_h : 0));
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const int dst_w = FF_CEIL_RSHIFT(outlink->w, (is_chroma ? h->odesc->log2_chroma_w : 0));
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if (h->histogram_size <= 256) {
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for (i = 0; i < dst_h ; i++)
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memset(out->data[h->odesc->comp[k].plane] +
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i * out->linesize[h->odesc->comp[k].plane],
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h->bg_color[k], dst_w);
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} else {
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const int mult = h->mult;
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for (i = 0; i < dst_h ; i++)
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for (j = 0; j < dst_w; j++)
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AV_WN16(out->data[h->odesc->comp[k].plane] +
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i * out->linesize[h->odesc->comp[k].plane] + j * 2,
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h->bg_color[k] * mult);
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}
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}
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switch (h->mode) {
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case MODE_LEVELS:
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for (m = 0, k = 0; k < h->ncomp; k++) {
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const int p = h->desc->comp[k].plane;
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const int height = h->planeheight[p];
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const int width = h->planewidth[p];
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double max_hval_log;
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unsigned max_hval = 0;
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int start;
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if (!((1 << k) & h->components))
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continue;
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start = m++ * (h->level_height + h->scale_height) * h->display_mode;
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if (h->histogram_size <= 256) {
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for (i = 0; i < height; i++) {
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const uint8_t *src = in->data[p] + i * in->linesize[p];
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for (j = 0; j < width; j++)
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h->histogram[src[j]]++;
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}
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} else {
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for (i = 0; i < height; i++) {
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const uint16_t *src = (const uint16_t *)(in->data[p] + i * in->linesize[p]);
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for (j = 0; j < width; j++)
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h->histogram[src[j]]++;
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}
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|
}
|
|
|
|
for (i = 0; i < h->histogram_size; i++)
|
|
max_hval = FFMAX(max_hval, h->histogram[i]);
|
|
max_hval_log = log2(max_hval + 1);
|
|
|
|
for (i = 0; i < outlink->w; i++) {
|
|
int col_height;
|
|
|
|
if (h->levels_mode)
|
|
col_height = round(h->level_height * (1. - (log2(h->histogram[i] + 1) / max_hval_log)));
|
|
else
|
|
col_height = h->level_height - (h->histogram[i] * (int64_t)h->level_height + max_hval - 1) / max_hval;
|
|
|
|
if (h->histogram_size <= 256) {
|
|
for (j = h->level_height - 1; j >= col_height; j--) {
|
|
if (h->display_mode) {
|
|
for (l = 0; l < h->ncomp; l++)
|
|
out->data[l][(j + start) * out->linesize[l] + i] = h->fg_color[l];
|
|
} else {
|
|
out->data[p][(j + start) * out->linesize[p] + i] = 255;
|
|
}
|
|
}
|
|
for (j = h->level_height + h->scale_height - 1; j >= h->level_height; j--)
|
|
out->data[p][(j + start) * out->linesize[p] + i] = i;
|
|
} else {
|
|
const int mult = h->mult;
|
|
|
|
for (j = h->level_height - 1; j >= col_height; j--) {
|
|
if (h->display_mode) {
|
|
for (l = 0; l < h->ncomp; l++)
|
|
AV_WN16(out->data[l] + (j + start) * out->linesize[l] + i * 2, h->fg_color[l] * mult);
|
|
} else {
|
|
AV_WN16(out->data[p] + (j + start) * out->linesize[p] + i * 2, 255 * mult);
|
|
}
|
|
}
|
|
for (j = h->level_height + h->scale_height - 1; j >= h->level_height; j--)
|
|
AV_WN16(out->data[p] + (j + start) * out->linesize[p] + i * 2, i);
|
|
}
|
|
}
|
|
|
|
memset(h->histogram, 0, h->histogram_size * sizeof(unsigned));
|
|
}
|
|
break;
|
|
case MODE_WAVEFORM:
|
|
for (k = 0; k < h->ncomp; k++) {
|
|
const int offset = k * 256 * h->display_mode;
|
|
gen_waveform(h, in, out, k, h->step, offset, h->waveform_mode);
|
|
}
|
|
break;
|
|
case MODE_COLOR:
|
|
for (i = 0; i < inlink->h; i++) {
|
|
const int iw1 = i * in->linesize[1];
|
|
const int iw2 = i * in->linesize[2];
|
|
for (j = 0; j < inlink->w; j++) {
|
|
const int pos = in->data[1][iw1 + j] * out->linesize[0] + in->data[2][iw2 + j];
|
|
if (out->data[0][pos] < 255)
|
|
out->data[0][pos]++;
|
|
}
|
|
}
|
|
for (i = 0; i < 256; i++) {
|
|
dst = out->data[0] + i * out->linesize[0];
|
|
for (j = 0; j < 256; j++) {
|
|
if (!dst[j]) {
|
|
out->data[1][i * out->linesize[0] + j] = i;
|
|
out->data[2][i * out->linesize[0] + j] = j;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case MODE_COLOR2:
|
|
for (i = 0; i < inlink->h; i++) {
|
|
const int iw1 = i * in->linesize[1];
|
|
const int iw2 = i * in->linesize[2];
|
|
for (j = 0; j < inlink->w; j++) {
|
|
const int u = in->data[1][iw1 + j];
|
|
const int v = in->data[2][iw2 + j];
|
|
const int pos = u * out->linesize[0] + v;
|
|
if (!out->data[0][pos])
|
|
out->data[0][pos] = FFABS(128 - u) + FFABS(128 - v);
|
|
out->data[1][pos] = u;
|
|
out->data[2][pos] = v;
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
av_assert0(0);
|
|
}
|
|
|
|
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,
|
|
.config_props = config_output,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_vf_histogram = {
|
|
.name = "histogram",
|
|
.description = NULL_IF_CONFIG_SMALL("Compute and draw a histogram."),
|
|
.priv_size = sizeof(HistogramContext),
|
|
.query_formats = query_formats,
|
|
.inputs = inputs,
|
|
.outputs = outputs,
|
|
.priv_class = &histogram_class,
|
|
};
|