mirror of https://git.ffmpeg.org/ffmpeg.git
1373 lines
47 KiB
C
1373 lines
47 KiB
C
/*
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* Copyright (c) 2014-2015 Muhammad Faiz <mfcc64@gmail.com>
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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 "config.h"
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#include "libavcodec/avfft.h"
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#include "libavutil/avassert.h"
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#include "libavutil/opt.h"
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#include "libavutil/xga_font_data.h"
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#include "libavutil/eval.h"
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#include "libavutil/pixdesc.h"
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#include "libavutil/time.h"
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#include "avfilter.h"
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#include "internal.h"
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#include "lavfutils.h"
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#include "lswsutils.h"
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#if CONFIG_LIBFREETYPE
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#include <ft2build.h>
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#include FT_FREETYPE_H
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#endif
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#include "avf_showcqt.h"
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#define BASEFREQ 20.01523126408007475
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#define ENDFREQ 20495.59681441799654
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#define TLENGTH "384*tc/(384+tc*f)"
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#define TLENGTH_MIN 0.001
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#define VOLUME_MAX 100.0
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#define FONTCOLOR "st(0, (midi(f)-59.5)/12);" \
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"st(1, if(between(ld(0),0,1), 0.5-0.5*cos(2*PI*ld(0)), 0));" \
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"r(1-ld(1)) + b(ld(1))"
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#define PTS_STEP 10
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#define PTS_TOLERANCE 1
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#define OFFSET(x) offsetof(ShowCQTContext, x)
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#define FLAGS (AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM)
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static const AVOption showcqt_options[] = {
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{ "size", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
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{ "s", "set video size", OFFSET(width), AV_OPT_TYPE_IMAGE_SIZE, { .str = "1920x1080" }, 0, 0, FLAGS },
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{ "fps", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, 0, FLAGS },
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{ "rate", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, 0, FLAGS },
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{ "r", "set video rate", OFFSET(rate), AV_OPT_TYPE_VIDEO_RATE, { .str = "25" }, 0, 0, FLAGS },
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{ "bar_h", "set bargraph height", OFFSET(bar_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
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{ "axis_h", "set axis height", OFFSET(axis_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
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{ "sono_h", "set sonogram height", OFFSET(sono_h), AV_OPT_TYPE_INT, { .i64 = -1 }, -1, INT_MAX, FLAGS },
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{ "fullhd", "set fullhd size", OFFSET(fullhd), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
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{ "sono_v", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "volume", "set sonogram volume", OFFSET(sono_v), AV_OPT_TYPE_STRING, { .str = "16" }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "bar_v", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "volume2", "set bargraph volume", OFFSET(bar_v), AV_OPT_TYPE_STRING, { .str = "sono_v" }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "sono_g", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
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{ "gamma", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS },
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{ "bar_g", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
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{ "gamma2", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS },
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{ "timeclamp", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.1, 1.0, FLAGS },
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{ "tc", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.1, 1.0, FLAGS },
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{ "basefreq", "set base frequency", OFFSET(basefreq), AV_OPT_TYPE_DOUBLE, { .dbl = BASEFREQ }, 10.0, 100000.0, FLAGS },
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{ "endfreq", "set end frequency", OFFSET(endfreq), AV_OPT_TYPE_DOUBLE, { .dbl = ENDFREQ }, 10.0, 100000.0, FLAGS },
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{ "coeffclamp", "set coeffclamp", OFFSET(coeffclamp), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.1, 10.0, FLAGS },
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{ "tlength", "set tlength", OFFSET(tlength), AV_OPT_TYPE_STRING, { .str = TLENGTH }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "count", "set transform count", OFFSET(count), AV_OPT_TYPE_INT, { .i64 = 6 }, 1, 30, FLAGS },
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{ "fcount", "set frequency count", OFFSET(fcount), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, FLAGS },
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{ "fontfile", "set axis font", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "fontcolor", "set font color", OFFSET(fontcolor), AV_OPT_TYPE_STRING, { .str = FONTCOLOR }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "axisfile", "set axis image", OFFSET(axisfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS },
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{ "axis", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
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{ "text", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS },
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{ NULL }
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};
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AVFILTER_DEFINE_CLASS(showcqt);
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static void common_uninit(ShowCQTContext *s)
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{
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int k;
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int level = AV_LOG_DEBUG;
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int64_t plot_time;
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if (s->fft_time)
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av_log(s->ctx, level, "fft_time = %16.3f s.\n", s->fft_time * 1e-6);
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if (s->cqt_time)
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av_log(s->ctx, level, "cqt_time = %16.3f s.\n", s->cqt_time * 1e-6);
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if (s->process_cqt_time)
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av_log(s->ctx, level, "process_cqt_time = %16.3f s.\n", s->process_cqt_time * 1e-6);
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if (s->update_sono_time)
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av_log(s->ctx, level, "update_sono_time = %16.3f s.\n", s->update_sono_time * 1e-6);
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if (s->alloc_time)
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av_log(s->ctx, level, "alloc_time = %16.3f s.\n", s->alloc_time * 1e-6);
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if (s->bar_time)
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av_log(s->ctx, level, "bar_time = %16.3f s.\n", s->bar_time * 1e-6);
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if (s->axis_time)
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av_log(s->ctx, level, "axis_time = %16.3f s.\n", s->axis_time * 1e-6);
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if (s->sono_time)
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av_log(s->ctx, level, "sono_time = %16.3f s.\n", s->sono_time * 1e-6);
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plot_time = s->fft_time + s->cqt_time + s->process_cqt_time + s->update_sono_time
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+ s->alloc_time + s->bar_time + s->axis_time + s->sono_time;
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if (plot_time)
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av_log(s->ctx, level, "plot_time = %16.3f s.\n", plot_time * 1e-6);
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s->fft_time = s->cqt_time = s->process_cqt_time = s->update_sono_time
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= s->alloc_time = s->bar_time = s->axis_time = s->sono_time = 0;
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/* axis_frame may be non reference counted frame */
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if (s->axis_frame && !s->axis_frame->buf[0]) {
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av_freep(s->axis_frame->data);
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for (k = 0; k < 4; k++)
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s->axis_frame->data[k] = NULL;
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}
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av_frame_free(&s->axis_frame);
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av_frame_free(&s->sono_frame);
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av_fft_end(s->fft_ctx);
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s->fft_ctx = NULL;
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if (s->coeffs)
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for (k = 0; k < s->cqt_len; k++)
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av_freep(&s->coeffs[k].val);
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av_freep(&s->coeffs);
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av_freep(&s->fft_data);
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av_freep(&s->fft_result);
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av_freep(&s->cqt_result);
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av_freep(&s->c_buf);
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av_freep(&s->h_buf);
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av_freep(&s->rcp_h_buf);
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av_freep(&s->freq);
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av_freep(&s->sono_v_buf);
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av_freep(&s->bar_v_buf);
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}
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static double *create_freq_table(double base, double end, int n)
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{
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double log_base, log_end;
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double rcp_n = 1.0 / n;
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double *freq;
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int x;
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freq = av_malloc_array(n, sizeof(*freq));
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if (!freq)
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return NULL;
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log_base = log(base);
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log_end = log(end);
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for (x = 0; x < n; x++) {
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double log_freq = log_base + (x + 0.5) * (log_end - log_base) * rcp_n;
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freq[x] = exp(log_freq);
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}
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return freq;
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}
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static double clip_with_log(void *log_ctx, const char *name,
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double val, double min, double max,
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double nan_replace, int idx)
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{
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int level = AV_LOG_WARNING;
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if (isnan(val)) {
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av_log(log_ctx, level, "[%d] %s is nan, setting it to %g.\n",
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idx, name, nan_replace);
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val = nan_replace;
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} else if (val < min) {
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av_log(log_ctx, level, "[%d] %s is too low (%g), setting it to %g.\n",
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idx, name, val, min);
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val = min;
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} else if (val > max) {
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av_log(log_ctx, level, "[%d] %s it too high (%g), setting it to %g.\n",
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idx, name, val, max);
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val = max;
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}
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return val;
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}
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static double a_weighting(void *p, double f)
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{
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double ret = 12200.0*12200.0 * (f*f*f*f);
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ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) *
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sqrt((f*f + 107.7*107.7) * (f*f + 737.9*737.9));
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return ret;
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}
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static double b_weighting(void *p, double f)
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{
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double ret = 12200.0*12200.0 * (f*f*f);
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ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0) * sqrt(f*f + 158.5*158.5);
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return ret;
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}
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static double c_weighting(void *p, double f)
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{
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double ret = 12200.0*12200.0 * (f*f);
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ret /= (f*f + 20.6*20.6) * (f*f + 12200.0*12200.0);
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return ret;
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}
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static int init_volume(ShowCQTContext *s)
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{
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const char *func_names[] = { "a_weighting", "b_weighting", "c_weighting", NULL };
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const char *sono_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "bar_v", NULL };
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const char *bar_names[] = { "timeclamp", "tc", "frequency", "freq", "f", "sono_v", NULL };
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double (*funcs[])(void *, double) = { a_weighting, b_weighting, c_weighting };
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AVExpr *sono = NULL, *bar = NULL;
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int x, ret = AVERROR(ENOMEM);
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s->sono_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->sono_v_buf));
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s->bar_v_buf = av_malloc_array(s->cqt_len, sizeof(*s->bar_v_buf));
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if (!s->sono_v_buf || !s->bar_v_buf)
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goto error;
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if ((ret = av_expr_parse(&sono, s->sono_v, sono_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
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goto error;
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if ((ret = av_expr_parse(&bar, s->bar_v, bar_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0)
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goto error;
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for (x = 0; x < s->cqt_len; x++) {
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double vars[] = { s->timeclamp, s->timeclamp, s->freq[x], s->freq[x], s->freq[x], 0.0 };
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double vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
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vars[5] = vol;
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vol = clip_with_log(s->ctx, "bar_v", av_expr_eval(bar, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
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s->bar_v_buf[x] = vol * vol;
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vars[5] = vol;
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vol = clip_with_log(s->ctx, "sono_v", av_expr_eval(sono, vars, NULL), 0.0, VOLUME_MAX, 0.0, x);
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s->sono_v_buf[x] = vol * vol;
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}
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av_expr_free(sono);
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av_expr_free(bar);
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return 0;
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error:
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av_freep(&s->sono_v_buf);
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av_freep(&s->bar_v_buf);
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av_expr_free(sono);
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av_expr_free(bar);
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return ret;
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}
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static void cqt_calc(FFTComplex *dst, const FFTComplex *src, const Coeffs *coeffs,
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int len, int fft_len)
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{
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int k, x, i, j;
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for (k = 0; k < len; k++) {
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FFTComplex l, r, a = {0,0}, b = {0,0};
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for (x = 0; x < coeffs[k].len; x++) {
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FFTSample u = coeffs[k].val[x];
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i = coeffs[k].start + x;
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j = fft_len - i;
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a.re += u * src[i].re;
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a.im += u * src[i].im;
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b.re += u * src[j].re;
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b.im += u * src[j].im;
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}
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/* separate left and right, (and multiply by 2.0) */
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l.re = a.re + b.re;
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l.im = a.im - b.im;
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r.re = b.im + a.im;
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r.im = b.re - a.re;
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dst[k].re = l.re * l.re + l.im * l.im;
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dst[k].im = r.re * r.re + r.im * r.im;
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}
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}
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static int init_cqt(ShowCQTContext *s)
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{
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const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
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AVExpr *expr = NULL;
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int rate = s->ctx->inputs[0]->sample_rate;
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int nb_cqt_coeffs = 0;
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int k, x, ret;
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if ((ret = av_expr_parse(&expr, s->tlength, var_names, NULL, NULL, NULL, NULL, 0, s->ctx)) < 0)
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goto error;
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ret = AVERROR(ENOMEM);
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if (!(s->coeffs = av_calloc(s->cqt_len, sizeof(*s->coeffs))))
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goto error;
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for (k = 0; k < s->cqt_len; k++) {
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double vars[] = { s->timeclamp, s->timeclamp, s->freq[k], s->freq[k], s->freq[k] };
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double flen, center, tlength;
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int start, end, m = k;
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if (s->freq[k] > 0.5 * rate)
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continue;
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tlength = clip_with_log(s->ctx, "tlength", av_expr_eval(expr, vars, NULL),
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TLENGTH_MIN, s->timeclamp, s->timeclamp, k);
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flen = 8.0 * s->fft_len / (tlength * rate);
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center = s->freq[k] * s->fft_len / rate;
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start = FFMAX(0, ceil(center - 0.5 * flen));
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end = FFMIN(s->fft_len, floor(center + 0.5 * flen));
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s->coeffs[m].start = start & ~(s->cqt_align - 1);
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s->coeffs[m].len = (end | (s->cqt_align - 1)) + 1 - s->coeffs[m].start;
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nb_cqt_coeffs += s->coeffs[m].len;
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if (!(s->coeffs[m].val = av_calloc(s->coeffs[m].len, sizeof(*s->coeffs[m].val))))
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goto error;
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|
|
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for (x = start; x <= end; x++) {
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int sign = (x & 1) ? (-1) : 1;
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double y = 2.0 * M_PI * (x - center) * (1.0 / flen);
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/* nuttall window */
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double w = 0.355768 + 0.487396 * cos(y) + 0.144232 * cos(2*y) + 0.012604 * cos(3*y);
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w *= sign * (1.0 / s->fft_len);
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s->coeffs[m].val[x - s->coeffs[m].start] = w;
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}
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}
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av_expr_free(expr);
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av_log(s->ctx, AV_LOG_INFO, "nb_cqt_coeffs = %d.\n", nb_cqt_coeffs);
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return 0;
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error:
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av_expr_free(expr);
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if (s->coeffs)
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for (k = 0; k < s->cqt_len; k++)
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av_freep(&s->coeffs[k].val);
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av_freep(&s->coeffs);
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return ret;
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}
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static AVFrame *alloc_frame_empty(enum AVPixelFormat format, int w, int h)
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{
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AVFrame *out;
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out = av_frame_alloc();
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if (!out)
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return NULL;
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out->format = format;
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out->width = w;
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out->height = h;
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if (av_frame_get_buffer(out, 32) < 0) {
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av_frame_free(&out);
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return NULL;
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}
|
|
if (format == AV_PIX_FMT_RGB24 || format == AV_PIX_FMT_RGBA) {
|
|
memset(out->data[0], 0, out->linesize[0] * h);
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} else {
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int hh = (format == AV_PIX_FMT_YUV420P || format == AV_PIX_FMT_YUVA420P) ? h / 2 : h;
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|
memset(out->data[0], 16, out->linesize[0] * h);
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|
memset(out->data[1], 128, out->linesize[1] * hh);
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memset(out->data[2], 128, out->linesize[2] * hh);
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if (out->data[3])
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memset(out->data[3], 0, out->linesize[3] * h);
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}
|
|
return out;
|
|
}
|
|
|
|
static enum AVPixelFormat convert_axis_pixel_format(enum AVPixelFormat format)
|
|
{
|
|
switch (format) {
|
|
case AV_PIX_FMT_RGB24: format = AV_PIX_FMT_RGBA; break;
|
|
case AV_PIX_FMT_YUV444P: format = AV_PIX_FMT_YUVA444P; break;
|
|
case AV_PIX_FMT_YUV422P: format = AV_PIX_FMT_YUVA422P; break;
|
|
case AV_PIX_FMT_YUV420P: format = AV_PIX_FMT_YUVA420P; break;
|
|
}
|
|
return format;
|
|
}
|
|
|
|
static int init_axis_empty(ShowCQTContext *s)
|
|
{
|
|
if (!(s->axis_frame = alloc_frame_empty(convert_axis_pixel_format(s->format), s->width, s->axis_h)))
|
|
return AVERROR(ENOMEM);
|
|
return 0;
|
|
}
|
|
|
|
static int init_axis_from_file(ShowCQTContext *s)
|
|
{
|
|
uint8_t *tmp_data[4] = { NULL };
|
|
int tmp_linesize[4];
|
|
enum AVPixelFormat tmp_format;
|
|
int tmp_w, tmp_h, ret;
|
|
|
|
if ((ret = ff_load_image(tmp_data, tmp_linesize, &tmp_w, &tmp_h, &tmp_format,
|
|
s->axisfile, s->ctx)) < 0)
|
|
goto error;
|
|
|
|
ret = AVERROR(ENOMEM);
|
|
if (!(s->axis_frame = av_frame_alloc()))
|
|
goto error;
|
|
|
|
if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
|
|
convert_axis_pixel_format(s->format), tmp_data, tmp_linesize, tmp_w, tmp_h,
|
|
tmp_format, s->ctx)) < 0)
|
|
goto error;
|
|
|
|
s->axis_frame->width = s->width;
|
|
s->axis_frame->height = s->axis_h;
|
|
s->axis_frame->format = convert_axis_pixel_format(s->format);
|
|
av_freep(tmp_data);
|
|
return 0;
|
|
|
|
error:
|
|
av_frame_free(&s->axis_frame);
|
|
av_freep(tmp_data);
|
|
return ret;
|
|
}
|
|
|
|
static double midi(void *p, double f)
|
|
{
|
|
return log2(f/440.0) * 12.0 + 69.0;
|
|
}
|
|
|
|
static double r_func(void *p, double x)
|
|
{
|
|
x = av_clipd(x, 0.0, 1.0);
|
|
return lrint(x*255.0) << 16;
|
|
}
|
|
|
|
static double g_func(void *p, double x)
|
|
{
|
|
x = av_clipd(x, 0.0, 1.0);
|
|
return lrint(x*255.0) << 8;
|
|
}
|
|
|
|
static double b_func(void *p, double x)
|
|
{
|
|
x = av_clipd(x, 0.0, 1.0);
|
|
return lrint(x*255.0);
|
|
}
|
|
|
|
static int init_axis_color(ShowCQTContext *s, AVFrame *tmp)
|
|
{
|
|
const char *var_names[] = { "timeclamp", "tc", "frequency", "freq", "f", NULL };
|
|
const char *func_names[] = { "midi", "r", "g", "b", NULL };
|
|
double (*funcs[])(void *, double) = { midi, r_func, g_func, b_func };
|
|
AVExpr *expr = NULL;
|
|
double *freq = NULL;
|
|
int x, y, ret;
|
|
|
|
if (s->basefreq != (double) BASEFREQ || s->endfreq != (double) ENDFREQ) {
|
|
av_log(s->ctx, AV_LOG_WARNING, "font axis rendering is not implemented in non-default frequency range,"
|
|
" please use axisfile option instead.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (s->cqt_len == 1920)
|
|
freq = s->freq;
|
|
else if (!(freq = create_freq_table(s->basefreq, s->endfreq, 1920)))
|
|
return AVERROR(ENOMEM);
|
|
|
|
if ((ret = av_expr_parse(&expr, s->fontcolor, var_names, func_names, funcs, NULL, NULL, 0, s->ctx)) < 0) {
|
|
if (freq != s->freq)
|
|
av_freep(&freq);
|
|
return ret;
|
|
}
|
|
|
|
for (x = 0; x < 1920; x++) {
|
|
double vars[] = { s->timeclamp, s->timeclamp, freq[x], freq[x], freq[x] };
|
|
int color = (int) av_expr_eval(expr, vars, NULL);
|
|
uint8_t r = (color >> 16) & 0xFF, g = (color >> 8) & 0xFF, b = color & 0xFF;
|
|
uint8_t *data = tmp->data[0];
|
|
int linesize = tmp->linesize[0];
|
|
for (y = 0; y < 32; y++) {
|
|
data[linesize * y + 4 * x] = r;
|
|
data[linesize * y + 4 * x + 1] = g;
|
|
data[linesize * y + 4 * x + 2] = b;
|
|
data[linesize * y + 4 * x + 3] = 0;
|
|
}
|
|
}
|
|
|
|
av_expr_free(expr);
|
|
if (freq != s->freq)
|
|
av_freep(&freq);
|
|
return 0;
|
|
}
|
|
|
|
static int render_freetype(ShowCQTContext *s, AVFrame *tmp)
|
|
{
|
|
#if CONFIG_LIBFREETYPE
|
|
const char *str = "EF G A BC D ";
|
|
uint8_t *data = tmp->data[0];
|
|
int linesize = tmp->linesize[0];
|
|
FT_Library lib = NULL;
|
|
FT_Face face = NULL;
|
|
int font_width = 16, font_height = 32;
|
|
int font_repeat = font_width * 12;
|
|
int linear_hori_advance = font_width * 65536;
|
|
int non_monospace_warning = 0;
|
|
int x;
|
|
|
|
if (!s->fontfile)
|
|
return AVERROR(EINVAL);
|
|
|
|
if (FT_Init_FreeType(&lib))
|
|
goto fail;
|
|
|
|
if (FT_New_Face(lib, s->fontfile, 0, &face))
|
|
goto fail;
|
|
|
|
if (FT_Set_Char_Size(face, 16*64, 0, 0, 0))
|
|
goto fail;
|
|
|
|
if (FT_Load_Char(face, 'A', FT_LOAD_RENDER))
|
|
goto fail;
|
|
|
|
if (FT_Set_Char_Size(face, 16*64 * linear_hori_advance / face->glyph->linearHoriAdvance, 0, 0, 0))
|
|
goto fail;
|
|
|
|
for (x = 0; x < 12; x++) {
|
|
int sx, sy, rx, bx, by, dx, dy;
|
|
|
|
if (str[x] == ' ')
|
|
continue;
|
|
|
|
if (FT_Load_Char(face, str[x], FT_LOAD_RENDER))
|
|
goto fail;
|
|
|
|
if (face->glyph->advance.x != font_width*64 && !non_monospace_warning) {
|
|
av_log(s->ctx, AV_LOG_WARNING, "font is not monospace.\n");
|
|
non_monospace_warning = 1;
|
|
}
|
|
|
|
sy = font_height - 8 - face->glyph->bitmap_top;
|
|
for (rx = 0; rx < 10; rx++) {
|
|
sx = rx * font_repeat + x * font_width + face->glyph->bitmap_left;
|
|
for (by = 0; by < face->glyph->bitmap.rows; by++) {
|
|
dy = by + sy;
|
|
if (dy < 0)
|
|
continue;
|
|
if (dy >= font_height)
|
|
break;
|
|
|
|
for (bx = 0; bx < face->glyph->bitmap.width; bx++) {
|
|
dx = bx + sx;
|
|
if (dx < 0)
|
|
continue;
|
|
if (dx >= 1920)
|
|
break;
|
|
data[dy*linesize+4*dx+3] = face->glyph->bitmap.buffer[by*face->glyph->bitmap.width+bx];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
FT_Done_Face(face);
|
|
FT_Done_FreeType(lib);
|
|
return 0;
|
|
|
|
fail:
|
|
av_log(s->ctx, AV_LOG_WARNING, "error while loading freetype font, using default font instead.\n");
|
|
FT_Done_Face(face);
|
|
FT_Done_FreeType(lib);
|
|
return AVERROR(EINVAL);
|
|
#else
|
|
if (s->fontfile)
|
|
av_log(s->ctx, AV_LOG_WARNING, "freetype is not available, ignoring fontfile option.\n");
|
|
return AVERROR(EINVAL);
|
|
#endif
|
|
}
|
|
|
|
static int render_default_font(AVFrame *tmp)
|
|
{
|
|
const char *str = "EF G A BC D ";
|
|
int x, u, v, mask;
|
|
uint8_t *data = tmp->data[0];
|
|
int linesize = tmp->linesize[0];
|
|
|
|
for (x = 0; x < 1920; x += 192) {
|
|
uint8_t *startptr = data + 4 * x;
|
|
for (u = 0; u < 12; u++) {
|
|
for (v = 0; v < 16; v++) {
|
|
uint8_t *p = startptr + 2 * v * linesize + 16 * 4 * u;
|
|
for (mask = 0x80; mask; mask >>= 1, p += 8) {
|
|
if (mask & avpriv_vga16_font[str[u] * 16 + v]) {
|
|
p[3] = 255;
|
|
p[7] = 255;
|
|
p[linesize+3] = 255;
|
|
p[linesize+7] = 255;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int init_axis_from_font(ShowCQTContext *s)
|
|
{
|
|
AVFrame *tmp = NULL;
|
|
int ret = AVERROR(ENOMEM);
|
|
|
|
if (!(tmp = alloc_frame_empty(AV_PIX_FMT_RGBA, 1920, 32)))
|
|
goto fail;
|
|
|
|
if (!(s->axis_frame = av_frame_alloc()))
|
|
goto fail;
|
|
|
|
if ((ret = init_axis_color(s, tmp)) < 0)
|
|
goto fail;
|
|
|
|
if (render_freetype(s, tmp) < 0 && (ret = render_default_font(tmp)) < 0)
|
|
goto fail;
|
|
|
|
if ((ret = ff_scale_image(s->axis_frame->data, s->axis_frame->linesize, s->width, s->axis_h,
|
|
convert_axis_pixel_format(s->format), tmp->data, tmp->linesize,
|
|
1920, 32, AV_PIX_FMT_RGBA, s->ctx)) < 0)
|
|
goto fail;
|
|
|
|
av_frame_free(&tmp);
|
|
s->axis_frame->width = s->width;
|
|
s->axis_frame->height = s->axis_h;
|
|
s->axis_frame->format = convert_axis_pixel_format(s->format);
|
|
return 0;
|
|
|
|
fail:
|
|
av_frame_free(&tmp);
|
|
av_frame_free(&s->axis_frame);
|
|
return ret;
|
|
}
|
|
|
|
static float calculate_gamma(float v, float g)
|
|
{
|
|
if (g == 1.0f)
|
|
return v;
|
|
if (g == 2.0f)
|
|
return sqrtf(v);
|
|
if (g == 3.0f)
|
|
return cbrtf(v);
|
|
if (g == 4.0f)
|
|
return sqrtf(sqrtf(v));
|
|
return expf(logf(v) / g);
|
|
}
|
|
|
|
static void rgb_from_cqt(ColorFloat *c, const FFTComplex *v, float g, int len)
|
|
{
|
|
int x;
|
|
for (x = 0; x < len; x++) {
|
|
c[x].rgb.r = 255.0f * calculate_gamma(FFMIN(1.0f, v[x].re), g);
|
|
c[x].rgb.g = 255.0f * calculate_gamma(FFMIN(1.0f, 0.5f * (v[x].re + v[x].im)), g);
|
|
c[x].rgb.b = 255.0f * calculate_gamma(FFMIN(1.0f, v[x].im), g);
|
|
}
|
|
}
|
|
|
|
static void yuv_from_cqt(ColorFloat *c, const FFTComplex *v, float gamma, int len)
|
|
{
|
|
int x;
|
|
for (x = 0; x < len; x++) {
|
|
float r, g, b;
|
|
r = calculate_gamma(FFMIN(1.0f, v[x].re), gamma);
|
|
g = calculate_gamma(FFMIN(1.0f, 0.5f * (v[x].re + v[x].im)), gamma);
|
|
b = calculate_gamma(FFMIN(1.0f, v[x].im), gamma);
|
|
c[x].yuv.y = 65.481f * r + 128.553f * g + 24.966f * b;
|
|
c[x].yuv.u = -37.797f * r - 74.203f * g + 112.0f * b;
|
|
c[x].yuv.v = 112.0f * r - 93.786f * g - 18.214 * b;
|
|
}
|
|
}
|
|
|
|
static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
|
|
const ColorFloat *c, int bar_h)
|
|
{
|
|
int x, y, w = out->width;
|
|
float mul, ht, rcp_bar_h = 1.0f / bar_h;
|
|
uint8_t *v = out->data[0], *lp;
|
|
int ls = out->linesize[0];
|
|
|
|
for (y = 0; y < bar_h; y++) {
|
|
ht = (bar_h - y) * rcp_bar_h;
|
|
lp = v + y * ls;
|
|
for (x = 0; x < w; x++) {
|
|
if (h[x] <= ht) {
|
|
*lp++ = 0;
|
|
*lp++ = 0;
|
|
*lp++ = 0;
|
|
} else {
|
|
mul = (h[x] - ht) * rcp_h[x];
|
|
*lp++ = lrintf(mul * c[x].rgb.r);
|
|
*lp++ = lrintf(mul * c[x].rgb.g);
|
|
*lp++ = lrintf(mul * c[x].rgb.b);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#define DRAW_BAR_WITH_CHROMA(x) \
|
|
do { \
|
|
if (h[x] <= ht) { \
|
|
*lpy++ = 16; \
|
|
*lpu++ = 128; \
|
|
*lpv++ = 128; \
|
|
} else { \
|
|
mul = (h[x] - ht) * rcp_h[x]; \
|
|
*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
|
|
*lpu++ = lrintf(mul * c[x].yuv.u + 128.0f); \
|
|
*lpv++ = lrintf(mul * c[x].yuv.v + 128.0f); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define DRAW_BAR_WITHOUT_CHROMA(x) \
|
|
do { \
|
|
if (h[x] <= ht) { \
|
|
*lpy++ = 16; \
|
|
} else { \
|
|
mul = (h[x] - ht) * rcp_h[x]; \
|
|
*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
|
|
} \
|
|
} while (0)
|
|
|
|
static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h,
|
|
const ColorFloat *c, int bar_h)
|
|
{
|
|
int x, y, yh, w = out->width;
|
|
float mul, ht, rcp_bar_h = 1.0f / bar_h;
|
|
uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
|
|
uint8_t *lpy, *lpu, *lpv;
|
|
int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
|
|
int fmt = out->format;
|
|
|
|
for (y = 0; y < bar_h; y += 2) {
|
|
yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
|
|
ht = (bar_h - y) * rcp_bar_h;
|
|
lpy = vy + y * lsy;
|
|
lpu = vu + yh * lsu;
|
|
lpv = vv + yh * lsv;
|
|
if (fmt == AV_PIX_FMT_YUV444P) {
|
|
for (x = 0; x < w; x += 2) {
|
|
DRAW_BAR_WITH_CHROMA(x);
|
|
DRAW_BAR_WITH_CHROMA(x+1);
|
|
}
|
|
} else {
|
|
for (x = 0; x < w; x += 2) {
|
|
DRAW_BAR_WITH_CHROMA(x);
|
|
DRAW_BAR_WITHOUT_CHROMA(x+1);
|
|
}
|
|
}
|
|
|
|
ht = (bar_h - (y+1)) * rcp_bar_h;
|
|
lpy = vy + (y+1) * lsy;
|
|
lpu = vu + (y+1) * lsu;
|
|
lpv = vv + (y+1) * lsv;
|
|
if (fmt == AV_PIX_FMT_YUV444P) {
|
|
for (x = 0; x < w; x += 2) {
|
|
DRAW_BAR_WITH_CHROMA(x);
|
|
DRAW_BAR_WITH_CHROMA(x+1);
|
|
}
|
|
} else if (fmt == AV_PIX_FMT_YUV422P) {
|
|
for (x = 0; x < w; x += 2) {
|
|
DRAW_BAR_WITH_CHROMA(x);
|
|
DRAW_BAR_WITHOUT_CHROMA(x+1);
|
|
}
|
|
} else {
|
|
for (x = 0; x < w; x += 2) {
|
|
DRAW_BAR_WITHOUT_CHROMA(x);
|
|
DRAW_BAR_WITHOUT_CHROMA(x+1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void draw_axis_rgb(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
|
|
{
|
|
int x, y, w = axis->width, h = axis->height;
|
|
float a, rcp_255 = 1.0f / 255.0f;
|
|
uint8_t *lp, *lpa;
|
|
|
|
for (y = 0; y < h; y++) {
|
|
lp = out->data[0] + (off + y) * out->linesize[0];
|
|
lpa = axis->data[0] + y * axis->linesize[0];
|
|
for (x = 0; x < w; x++) {
|
|
if (!lpa[3]) {
|
|
*lp++ = lrintf(c[x].rgb.r);
|
|
*lp++ = lrintf(c[x].rgb.g);
|
|
*lp++ = lrintf(c[x].rgb.b);
|
|
} else if (lpa[3] == 255) {
|
|
*lp++ = lpa[0];
|
|
*lp++ = lpa[1];
|
|
*lp++ = lpa[2];
|
|
} else {
|
|
a = rcp_255 * lpa[3];
|
|
*lp++ = lrintf(a * lpa[0] + (1.0f - a) * c[x].rgb.r);
|
|
*lp++ = lrintf(a * lpa[1] + (1.0f - a) * c[x].rgb.g);
|
|
*lp++ = lrintf(a * lpa[2] + (1.0f - a) * c[x].rgb.b);
|
|
}
|
|
lpa += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
#define BLEND_WITH_CHROMA(c) \
|
|
do { \
|
|
if (!*lpaa) { \
|
|
*lpy = lrintf(c.yuv.y + 16.0f); \
|
|
*lpu = lrintf(c.yuv.u + 128.0f); \
|
|
*lpv = lrintf(c.yuv.v + 128.0f); \
|
|
} else if (255 == *lpaa) { \
|
|
*lpy = *lpay; \
|
|
*lpu = *lpau; \
|
|
*lpv = *lpav; \
|
|
} else { \
|
|
float a = (1.0f/255.0f) * (*lpaa); \
|
|
*lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
|
|
*lpu = lrintf(a * (*lpau) + (1.0f - a) * (c.yuv.u + 128.0f)); \
|
|
*lpv = lrintf(a * (*lpav) + (1.0f - a) * (c.yuv.v + 128.0f)); \
|
|
} \
|
|
lpy++; lpu++; lpv++; \
|
|
lpay++; lpau++; lpav++; lpaa++; \
|
|
} while (0)
|
|
|
|
#define BLEND_WITHOUT_CHROMA(c) \
|
|
do { \
|
|
if (!*lpaa) { \
|
|
*lpy = lrintf(c.yuv.y + 16.0f); \
|
|
} else if (255 == *lpaa) { \
|
|
*lpy = *lpay; \
|
|
} else { \
|
|
float a = (1.0f/255.0f) * (*lpaa); \
|
|
*lpy = lrintf(a * (*lpay) + (1.0f - a) * (c.yuv.y + 16.0f)); \
|
|
} \
|
|
lpy++; \
|
|
lpay++; lpaa++; \
|
|
} while (0)
|
|
|
|
static void draw_axis_yuv(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off)
|
|
{
|
|
int fmt = out->format, x, y, yh, w = axis->width, h = axis->height;
|
|
int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
|
|
uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
|
|
uint8_t *vay = axis->data[0], *vau = axis->data[1], *vav = axis->data[2], *vaa = axis->data[3];
|
|
int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
|
|
int lsay = axis->linesize[0], lsau = axis->linesize[1], lsav = axis->linesize[2], lsaa = axis->linesize[3];
|
|
uint8_t *lpy, *lpu, *lpv, *lpay, *lpau, *lpav, *lpaa;
|
|
|
|
for (y = 0; y < h; y += 2) {
|
|
yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
|
|
lpy = vy + (off + y) * lsy;
|
|
lpu = vu + (offh + yh) * lsu;
|
|
lpv = vv + (offh + yh) * lsv;
|
|
lpay = vay + y * lsay;
|
|
lpau = vau + yh * lsau;
|
|
lpav = vav + yh * lsav;
|
|
lpaa = vaa + y * lsaa;
|
|
if (fmt == AV_PIX_FMT_YUV444P) {
|
|
for (x = 0; x < w; x += 2) {
|
|
BLEND_WITH_CHROMA(c[x]);
|
|
BLEND_WITH_CHROMA(c[x+1]);
|
|
}
|
|
} else {
|
|
for (x = 0; x < w; x += 2) {
|
|
BLEND_WITH_CHROMA(c[x]);
|
|
BLEND_WITHOUT_CHROMA(c[x+1]);
|
|
}
|
|
}
|
|
|
|
lpy = vy + (off + y + 1) * lsy;
|
|
lpu = vu + (off + y + 1) * lsu;
|
|
lpv = vv + (off + y + 1) * lsv;
|
|
lpay = vay + (y + 1) * lsay;
|
|
lpau = vau + (y + 1) * lsau;
|
|
lpav = vav + (y + 1) * lsav;
|
|
lpaa = vaa + (y + 1) * lsaa;
|
|
if (fmt == AV_PIX_FMT_YUV444P) {
|
|
for (x = 0; x < w; x += 2) {
|
|
BLEND_WITH_CHROMA(c[x]);
|
|
BLEND_WITH_CHROMA(c[x+1]);
|
|
}
|
|
} else if (fmt == AV_PIX_FMT_YUV422P) {
|
|
for (x = 0; x < w; x += 2) {
|
|
BLEND_WITH_CHROMA(c[x]);
|
|
BLEND_WITHOUT_CHROMA(c[x+1]);
|
|
}
|
|
} else {
|
|
for (x = 0; x < w; x += 2) {
|
|
BLEND_WITHOUT_CHROMA(c[x]);
|
|
BLEND_WITHOUT_CHROMA(c[x+1]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void draw_sono(AVFrame *out, AVFrame *sono, int off, int idx)
|
|
{
|
|
int fmt = out->format, h = sono->height;
|
|
int nb_planes = (fmt == AV_PIX_FMT_RGB24) ? 1 : 3;
|
|
int offh = (fmt == AV_PIX_FMT_YUV420P) ? off / 2 : off;
|
|
int inc = (fmt == AV_PIX_FMT_YUV420P) ? 2 : 1;
|
|
int ls, i, y, yh;
|
|
|
|
ls = FFMIN(out->linesize[0], sono->linesize[0]);
|
|
for (y = 0; y < h; y++) {
|
|
memcpy(out->data[0] + (off + y) * out->linesize[0],
|
|
sono->data[0] + (idx + y) % h * sono->linesize[0], ls);
|
|
}
|
|
|
|
for (i = 1; i < nb_planes; i++) {
|
|
ls = FFMIN(out->linesize[i], sono->linesize[i]);
|
|
for (y = 0; y < h; y += inc) {
|
|
yh = (fmt == AV_PIX_FMT_YUV420P) ? y / 2 : y;
|
|
memcpy(out->data[i] + (offh + yh) * out->linesize[i],
|
|
sono->data[i] + (idx + y) % h * sono->linesize[i], ls);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void update_sono_rgb(AVFrame *sono, const ColorFloat *c, int idx)
|
|
{
|
|
int x, w = sono->width;
|
|
uint8_t *lp = sono->data[0] + idx * sono->linesize[0];
|
|
|
|
for (x = 0; x < w; x++) {
|
|
*lp++ = lrintf(c[x].rgb.r);
|
|
*lp++ = lrintf(c[x].rgb.g);
|
|
*lp++ = lrintf(c[x].rgb.b);
|
|
}
|
|
}
|
|
|
|
static void update_sono_yuv(AVFrame *sono, const ColorFloat *c, int idx)
|
|
{
|
|
int x, fmt = sono->format, w = sono->width;
|
|
uint8_t *lpy = sono->data[0] + idx * sono->linesize[0];
|
|
uint8_t *lpu = sono->data[1] + idx * sono->linesize[1];
|
|
uint8_t *lpv = sono->data[2] + idx * sono->linesize[2];
|
|
|
|
for (x = 0; x < w; x += 2) {
|
|
*lpy++ = lrintf(c[x].yuv.y + 16.0f);
|
|
*lpu++ = lrintf(c[x].yuv.u + 128.0f);
|
|
*lpv++ = lrintf(c[x].yuv.v + 128.0f);
|
|
*lpy++ = lrintf(c[x+1].yuv.y + 16.0f);
|
|
if (fmt == AV_PIX_FMT_YUV444P) {
|
|
*lpu++ = lrintf(c[x+1].yuv.u + 128.0f);
|
|
*lpv++ = lrintf(c[x+1].yuv.v + 128.0f);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void process_cqt(ShowCQTContext *s)
|
|
{
|
|
int x, i;
|
|
if (!s->sono_count) {
|
|
for (x = 0; x < s->cqt_len; x++) {
|
|
s->h_buf[x] = s->bar_v_buf[x] * 0.5f * (s->cqt_result[x].re + s->cqt_result[x].im);
|
|
}
|
|
if (s->fcount > 1) {
|
|
float rcp_fcount = 1.0f / s->fcount;
|
|
for (x = 0; x < s->width; x++) {
|
|
float h = 0.0f;
|
|
for (i = 0; i < s->fcount; i++)
|
|
h += s->h_buf[s->fcount * x + i];
|
|
s->h_buf[x] = rcp_fcount * h;
|
|
}
|
|
}
|
|
for (x = 0; x < s->width; x++) {
|
|
s->h_buf[x] = calculate_gamma(s->h_buf[x], s->bar_g);
|
|
s->rcp_h_buf[x] = 1.0f / (s->h_buf[x] + 0.0001f);
|
|
}
|
|
}
|
|
|
|
for (x = 0; x < s->cqt_len; x++) {
|
|
s->cqt_result[x].re *= s->sono_v_buf[x];
|
|
s->cqt_result[x].im *= s->sono_v_buf[x];
|
|
}
|
|
|
|
if (s->fcount > 1) {
|
|
float rcp_fcount = 1.0f / s->fcount;
|
|
for (x = 0; x < s->width; x++) {
|
|
FFTComplex result = {0.0f, 0.0f};
|
|
for (i = 0; i < s->fcount; i++) {
|
|
result.re += s->cqt_result[s->fcount * x + i].re;
|
|
result.im += s->cqt_result[s->fcount * x + i].im;
|
|
}
|
|
s->cqt_result[x].re = rcp_fcount * result.re;
|
|
s->cqt_result[x].im = rcp_fcount * result.im;
|
|
}
|
|
}
|
|
|
|
if (s->format == AV_PIX_FMT_RGB24)
|
|
rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width);
|
|
else
|
|
yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width);
|
|
}
|
|
|
|
static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
|
|
{
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
ShowCQTContext *s = ctx->priv;
|
|
int64_t last_time, cur_time;
|
|
|
|
#define UPDATE_TIME(t) \
|
|
cur_time = av_gettime(); \
|
|
t += cur_time - last_time; \
|
|
last_time = cur_time
|
|
|
|
last_time = av_gettime();
|
|
|
|
memcpy(s->fft_result, s->fft_data, s->fft_len * sizeof(*s->fft_data));
|
|
av_fft_permute(s->fft_ctx, s->fft_result);
|
|
av_fft_calc(s->fft_ctx, s->fft_result);
|
|
s->fft_result[s->fft_len] = s->fft_result[0];
|
|
UPDATE_TIME(s->fft_time);
|
|
|
|
s->cqt_calc(s->cqt_result, s->fft_result, s->coeffs, s->cqt_len, s->fft_len);
|
|
UPDATE_TIME(s->cqt_time);
|
|
|
|
process_cqt(s);
|
|
UPDATE_TIME(s->process_cqt_time);
|
|
|
|
if (s->sono_h) {
|
|
s->update_sono(s->sono_frame, s->c_buf, s->sono_idx);
|
|
UPDATE_TIME(s->update_sono_time);
|
|
}
|
|
|
|
if (!s->sono_count) {
|
|
AVFrame *out = *frameout = ff_get_video_buffer(outlink, outlink->w, outlink->h);
|
|
if (!out)
|
|
return AVERROR(ENOMEM);
|
|
UPDATE_TIME(s->alloc_time);
|
|
|
|
if (s->bar_h) {
|
|
s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h);
|
|
UPDATE_TIME(s->bar_time);
|
|
}
|
|
|
|
if (s->axis_h) {
|
|
s->draw_axis(out, s->axis_frame, s->c_buf, s->bar_h);
|
|
UPDATE_TIME(s->axis_time);
|
|
}
|
|
|
|
if (s->sono_h) {
|
|
s->draw_sono(out, s->sono_frame, s->bar_h + s->axis_h, s->sono_idx);
|
|
UPDATE_TIME(s->sono_time);
|
|
}
|
|
out->pts = s->next_pts;
|
|
s->next_pts += PTS_STEP;
|
|
}
|
|
s->sono_count = (s->sono_count + 1) % s->count;
|
|
if (s->sono_h)
|
|
s->sono_idx = (s->sono_idx + s->sono_h - 1) % s->sono_h;
|
|
return 0;
|
|
}
|
|
|
|
/* main filter control */
|
|
static av_cold int init(AVFilterContext *ctx)
|
|
{
|
|
ShowCQTContext *s = ctx->priv;
|
|
s->ctx = ctx;
|
|
|
|
if (!s->fullhd) {
|
|
av_log(ctx, AV_LOG_WARNING, "fullhd option is deprecated, use size/s option instead.\n");
|
|
if (s->width != 1920 || s->height != 1080) {
|
|
av_log(ctx, AV_LOG_ERROR, "fullhd set to 0 but with custom dimension.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
s->width /= 2;
|
|
s->height /= 2;
|
|
s->fullhd = 1;
|
|
}
|
|
|
|
if (s->axis_h < 0) {
|
|
s->axis_h = s->width / 60;
|
|
if (s->axis_h & 1)
|
|
s->axis_h++;
|
|
if (s->bar_h >= 0 && s->sono_h >= 0)
|
|
s->axis_h = s->height - s->bar_h - s->sono_h;
|
|
if (s->bar_h >= 0 && s->sono_h < 0)
|
|
s->axis_h = FFMIN(s->axis_h, s->height - s->bar_h);
|
|
if (s->bar_h < 0 && s->sono_h >= 0)
|
|
s->axis_h = FFMIN(s->axis_h, s->height - s->sono_h);
|
|
}
|
|
|
|
if (s->bar_h < 0) {
|
|
s->bar_h = (s->height - s->axis_h) / 2;
|
|
if (s->bar_h & 1)
|
|
s->bar_h--;
|
|
if (s->sono_h >= 0)
|
|
s->bar_h = s->height - s->sono_h - s->axis_h;
|
|
}
|
|
|
|
if (s->sono_h < 0)
|
|
s->sono_h = s->height - s->axis_h - s->bar_h;
|
|
|
|
if ((s->width & 1) || (s->height & 1) || (s->bar_h & 1) || (s->axis_h & 1) || (s->sono_h & 1) ||
|
|
(s->bar_h < 0) || (s->axis_h < 0) || (s->sono_h < 0) || (s->bar_h > s->height) ||
|
|
(s->axis_h > s->height) || (s->sono_h > s->height) || (s->bar_h + s->axis_h + s->sono_h != s->height)) {
|
|
av_log(ctx, AV_LOG_ERROR, "invalid dimension.\n");
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
if (!s->fcount) {
|
|
do {
|
|
s->fcount++;
|
|
} while(s->fcount * s->width < 1920 && s->fcount < 10);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static av_cold void uninit(AVFilterContext *ctx)
|
|
{
|
|
common_uninit(ctx->priv);
|
|
}
|
|
|
|
static int query_formats(AVFilterContext *ctx)
|
|
{
|
|
AVFilterFormats *formats = NULL;
|
|
AVFilterChannelLayouts *layouts = NULL;
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_NONE };
|
|
enum AVPixelFormat pix_fmts[] = {
|
|
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
|
|
AV_PIX_FMT_YUV444P, AV_PIX_FMT_RGB24, AV_PIX_FMT_NONE
|
|
};
|
|
int64_t channel_layouts[] = { AV_CH_LAYOUT_STEREO, AV_CH_LAYOUT_STEREO_DOWNMIX, -1 };
|
|
int ret;
|
|
|
|
/* set input audio formats */
|
|
formats = ff_make_format_list(sample_fmts);
|
|
if ((ret = ff_formats_ref(formats, &inlink->out_formats)) < 0)
|
|
return ret;
|
|
|
|
layouts = avfilter_make_format64_list(channel_layouts);
|
|
if ((ret = ff_channel_layouts_ref(layouts, &inlink->out_channel_layouts)) < 0)
|
|
return ret;
|
|
|
|
formats = ff_all_samplerates();
|
|
if ((ret = ff_formats_ref(formats, &inlink->out_samplerates)) < 0)
|
|
return ret;
|
|
|
|
/* set output video format */
|
|
formats = ff_make_format_list(pix_fmts);
|
|
if ((ret = ff_formats_ref(formats, &outlink->in_formats)) < 0)
|
|
return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int config_output(AVFilterLink *outlink)
|
|
{
|
|
AVFilterContext *ctx = outlink->src;
|
|
AVFilterLink *inlink = ctx->inputs[0];
|
|
ShowCQTContext *s = ctx->priv;
|
|
int ret;
|
|
|
|
common_uninit(s);
|
|
|
|
outlink->w = s->width;
|
|
outlink->h = s->height;
|
|
s->format = outlink->format;
|
|
outlink->sample_aspect_ratio = av_make_q(1, 1);
|
|
outlink->frame_rate = s->rate;
|
|
outlink->time_base = av_mul_q(av_inv_q(s->rate), av_make_q(1, PTS_STEP));
|
|
av_log(ctx, AV_LOG_INFO, "video: %dx%d %s %d/%d fps, bar_h = %d, axis_h = %d, sono_h = %d.\n",
|
|
s->width, s->height, av_get_pix_fmt_name(s->format), s->rate.num, s->rate.den,
|
|
s->bar_h, s->axis_h, s->sono_h);
|
|
|
|
s->cqt_len = s->width * s->fcount;
|
|
if (!(s->freq = create_freq_table(s->basefreq, s->endfreq, s->cqt_len)))
|
|
return AVERROR(ENOMEM);
|
|
|
|
if ((ret = init_volume(s)) < 0)
|
|
return ret;
|
|
|
|
s->fft_bits = ceil(log2(inlink->sample_rate * s->timeclamp));
|
|
s->fft_len = 1 << s->fft_bits;
|
|
av_log(ctx, AV_LOG_INFO, "fft_len = %d, cqt_len = %d.\n", s->fft_len, s->cqt_len);
|
|
|
|
s->fft_ctx = av_fft_init(s->fft_bits, 0);
|
|
s->fft_data = av_calloc(s->fft_len, sizeof(*s->fft_data));
|
|
s->fft_result = av_calloc(s->fft_len + 64, sizeof(*s->fft_result));
|
|
s->cqt_result = av_malloc_array(s->cqt_len, sizeof(*s->cqt_result));
|
|
if (!s->fft_ctx || !s->fft_data || !s->fft_result || !s->cqt_result)
|
|
return AVERROR(ENOMEM);
|
|
|
|
s->cqt_align = 1;
|
|
s->cqt_calc = cqt_calc;
|
|
s->draw_sono = draw_sono;
|
|
if (s->format == AV_PIX_FMT_RGB24) {
|
|
s->draw_bar = draw_bar_rgb;
|
|
s->draw_axis = draw_axis_rgb;
|
|
s->update_sono = update_sono_rgb;
|
|
} else {
|
|
s->draw_bar = draw_bar_yuv;
|
|
s->draw_axis = draw_axis_yuv;
|
|
s->update_sono = update_sono_yuv;
|
|
}
|
|
|
|
if ((ret = init_cqt(s)) < 0)
|
|
return ret;
|
|
|
|
if (s->axis_h) {
|
|
if (!s->axis) {
|
|
if ((ret = init_axis_empty(s)) < 0)
|
|
return ret;
|
|
} else if (s->axisfile) {
|
|
if (init_axis_from_file(s) < 0) {
|
|
av_log(ctx, AV_LOG_WARNING, "loading axis image failed, fallback to font rendering.\n");
|
|
if (init_axis_from_font(s) < 0) {
|
|
av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
|
|
if ((ret = init_axis_empty(s)) < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
} else {
|
|
if (init_axis_from_font(s) < 0) {
|
|
av_log(ctx, AV_LOG_WARNING, "loading axis font failed, disable text drawing.\n");
|
|
if ((ret = init_axis_empty(s)) < 0)
|
|
return ret;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (s->sono_h) {
|
|
s->sono_frame = alloc_frame_empty((outlink->format == AV_PIX_FMT_YUV420P) ?
|
|
AV_PIX_FMT_YUV422P : outlink->format, s->width, s->sono_h);
|
|
if (!s->sono_frame)
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
|
|
s->h_buf = av_malloc_array(s->cqt_len, sizeof (*s->h_buf));
|
|
s->rcp_h_buf = av_malloc_array(s->width, sizeof(*s->rcp_h_buf));
|
|
s->c_buf = av_malloc_array(s->width, sizeof(*s->c_buf));
|
|
if (!s->h_buf || !s->rcp_h_buf || !s->c_buf)
|
|
return AVERROR(ENOMEM);
|
|
|
|
s->sono_count = 0;
|
|
s->next_pts = 0;
|
|
s->sono_idx = 0;
|
|
s->remaining_fill = s->fft_len / 2;
|
|
s->remaining_frac = 0;
|
|
s->step_frac = av_div_q(av_make_q(inlink->sample_rate, s->count) , s->rate);
|
|
s->step = (int)(s->step_frac.num / s->step_frac.den);
|
|
s->step_frac.num %= s->step_frac.den;
|
|
if (s->step_frac.num) {
|
|
av_log(ctx, AV_LOG_INFO, "audio: %d Hz, step = %d + %d/%d.\n",
|
|
inlink->sample_rate, s->step, s->step_frac.num, s->step_frac.den);
|
|
av_log(ctx, AV_LOG_WARNING, "fractional step.\n");
|
|
} else {
|
|
av_log(ctx, AV_LOG_INFO, "audio: %d Hz, step = %d.\n",
|
|
inlink->sample_rate, s->step);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int filter_frame(AVFilterLink *inlink, AVFrame *insamples)
|
|
{
|
|
AVFilterContext *ctx = inlink->dst;
|
|
AVFilterLink *outlink = ctx->outputs[0];
|
|
ShowCQTContext *s = ctx->priv;
|
|
int remaining, step, ret, x, i, j, m;
|
|
float *audio_data;
|
|
AVFrame *out = NULL;
|
|
|
|
if (!insamples) {
|
|
while (s->remaining_fill < s->fft_len / 2) {
|
|
memset(&s->fft_data[s->fft_len - s->remaining_fill], 0, sizeof(*s->fft_data) * s->remaining_fill);
|
|
ret = plot_cqt(ctx, &out);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
|
|
s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
|
|
for (x = 0; x < (s->fft_len-step); x++)
|
|
s->fft_data[x] = s->fft_data[x+step];
|
|
s->remaining_fill += step;
|
|
|
|
if (out)
|
|
return ff_filter_frame(outlink, out);
|
|
}
|
|
return AVERROR_EOF;
|
|
}
|
|
|
|
remaining = insamples->nb_samples;
|
|
audio_data = (float*) insamples->data[0];
|
|
|
|
while (remaining) {
|
|
i = insamples->nb_samples - remaining;
|
|
j = s->fft_len - s->remaining_fill;
|
|
if (remaining >= s->remaining_fill) {
|
|
for (m = 0; m < s->remaining_fill; m++) {
|
|
s->fft_data[j+m].re = audio_data[2*(i+m)];
|
|
s->fft_data[j+m].im = audio_data[2*(i+m)+1];
|
|
}
|
|
ret = plot_cqt(ctx, &out);
|
|
if (ret < 0) {
|
|
av_frame_free(&insamples);
|
|
return ret;
|
|
}
|
|
remaining -= s->remaining_fill;
|
|
if (out) {
|
|
int64_t pts = av_rescale_q(insamples->pts, inlink->time_base, av_make_q(1, inlink->sample_rate));
|
|
pts += insamples->nb_samples - remaining - s->fft_len/2;
|
|
pts = av_rescale_q(pts, av_make_q(1, inlink->sample_rate), outlink->time_base);
|
|
if (FFABS(pts - out->pts) > PTS_TOLERANCE) {
|
|
av_log(ctx, AV_LOG_DEBUG, "changing pts from %"PRId64" (%.3f) to %"PRId64" (%.3f).\n",
|
|
out->pts, out->pts * av_q2d(outlink->time_base),
|
|
pts, pts * av_q2d(outlink->time_base));
|
|
out->pts = pts;
|
|
s->next_pts = pts + PTS_STEP;
|
|
}
|
|
ret = ff_filter_frame(outlink, out);
|
|
if (ret < 0) {
|
|
av_frame_free(&insamples);
|
|
return ret;
|
|
}
|
|
out = NULL;
|
|
}
|
|
step = s->step + (s->step_frac.num + s->remaining_frac) / s->step_frac.den;
|
|
s->remaining_frac = (s->step_frac.num + s->remaining_frac) % s->step_frac.den;
|
|
for (m = 0; m < s->fft_len-step; m++)
|
|
s->fft_data[m] = s->fft_data[m+step];
|
|
s->remaining_fill = step;
|
|
} else {
|
|
for (m = 0; m < remaining; m++) {
|
|
s->fft_data[j+m].re = audio_data[2*(i+m)];
|
|
s->fft_data[j+m].im = audio_data[2*(i+m)+1];
|
|
}
|
|
s->remaining_fill -= remaining;
|
|
remaining = 0;
|
|
}
|
|
}
|
|
av_frame_free(&insamples);
|
|
return 0;
|
|
}
|
|
|
|
static int request_frame(AVFilterLink *outlink)
|
|
{
|
|
AVFilterLink *inlink = outlink->src->inputs[0];
|
|
int ret;
|
|
|
|
ret = ff_request_frame(inlink);
|
|
if (ret == AVERROR_EOF)
|
|
ret = filter_frame(inlink, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static const AVFilterPad showcqt_inputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_AUDIO,
|
|
.filter_frame = filter_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
static const AVFilterPad showcqt_outputs[] = {
|
|
{
|
|
.name = "default",
|
|
.type = AVMEDIA_TYPE_VIDEO,
|
|
.config_props = config_output,
|
|
.request_frame = request_frame,
|
|
},
|
|
{ NULL }
|
|
};
|
|
|
|
AVFilter ff_avf_showcqt = {
|
|
.name = "showcqt",
|
|
.description = NULL_IF_CONFIG_SMALL("Convert input audio to a CQT (Constant/Clamped Q Transform) spectrum video output."),
|
|
.init = init,
|
|
.uninit = uninit,
|
|
.query_formats = query_formats,
|
|
.priv_size = sizeof(ShowCQTContext),
|
|
.inputs = showcqt_inputs,
|
|
.outputs = showcqt_outputs,
|
|
.priv_class = &showcqt_class,
|
|
};
|