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avfilter/avf_showcqt: add bar_t option
custom bargraph transparency Signed-off-by: Muhammad Faiz <mfcc64@gmail.com>
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@ -16835,6 +16835,10 @@ Acceptable range is @code{[1, 7]}.
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Specify the bargraph gamma. Default value is @code{1}. Acceptable range is
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@code{[1, 7]}.
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@item bar_t
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Specify the bargraph transparency level. Lower value makes the bargraph sharper.
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Default value is @code{1}. Acceptable range is @code{[0, 1]}.
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@item timeclamp, tc
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Specify the transform timeclamp. At low frequency, there is trade-off between
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accuracy in time domain and frequency domain. If timeclamp is lower,
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@ -75,6 +75,7 @@ static const AVOption showcqt_options[] = {
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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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{ "bar_t", "set bar transparency", OFFSET(bar_t), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, 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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@ -752,10 +753,10 @@ static void yuv_from_cqt(ColorFloat *c, const FFTComplex *v, float gamma, int le
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}
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static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
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const ColorFloat *c, int bar_h)
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const ColorFloat *c, int bar_h, float bar_t)
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{
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int x, y, w = out->width;
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float mul, ht, rcp_bar_h = 1.0f / bar_h;
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float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
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uint8_t *v = out->data[0], *lp;
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int ls = out->linesize[0];
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@ -769,6 +770,7 @@ static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h,
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*lp++ = 0;
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} else {
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mul = (h[x] - ht) * rcp_h[x];
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mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f;
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*lp++ = lrintf(mul * c[x].rgb.r);
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*lp++ = lrintf(mul * c[x].rgb.g);
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*lp++ = lrintf(mul * c[x].rgb.b);
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@ -785,6 +787,7 @@ do { \
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*lpv++ = 128; \
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} else { \
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mul = (h[x] - ht) * rcp_h[x]; \
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mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
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*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
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*lpu++ = lrintf(mul * c[x].yuv.u + 128.0f); \
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*lpv++ = lrintf(mul * c[x].yuv.v + 128.0f); \
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@ -797,15 +800,16 @@ do { \
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*lpy++ = 16; \
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} else { \
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mul = (h[x] - ht) * rcp_h[x]; \
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mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \
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*lpy++ = lrintf(mul * c[x].yuv.y + 16.0f); \
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} \
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} while (0)
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static void draw_bar_yuv(AVFrame *out, const float *h, const float *rcp_h,
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const ColorFloat *c, int bar_h)
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const ColorFloat *c, int bar_h, float bar_t)
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{
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int x, y, yh, w = out->width;
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float mul, ht, rcp_bar_h = 1.0f / bar_h;
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float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t;
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uint8_t *vy = out->data[0], *vu = out->data[1], *vv = out->data[2];
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uint8_t *lpy, *lpu, *lpv;
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int lsy = out->linesize[0], lsu = out->linesize[1], lsv = out->linesize[2];
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@ -1160,7 +1164,7 @@ static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout)
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UPDATE_TIME(s->alloc_time);
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if (s->bar_h) {
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s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h);
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s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h, s->bar_t);
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UPDATE_TIME(s->bar_time);
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}
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@ -78,7 +78,7 @@ typedef struct {
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int len, int fft_len);
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void (*permute_coeffs)(float *v, int len);
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void (*draw_bar)(AVFrame *out, const float *h, const float *rcp_h,
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const ColorFloat *c, int bar_h);
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const ColorFloat *c, int bar_h, float bar_t);
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void (*draw_axis)(AVFrame *out, AVFrame *axis, const ColorFloat *c, int off);
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void (*draw_sono)(AVFrame *out, AVFrame *sono, int off, int idx);
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void (*update_sono)(AVFrame *sono, const ColorFloat *c, int idx);
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@ -102,6 +102,7 @@ typedef struct {
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char *bar_v;
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float sono_g;
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float bar_g;
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float bar_t;
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double timeclamp;
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double basefreq;
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double endfreq;
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