X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavfilter%2Favf_showcqt.c;h=a25176dff7dc6be902af856942dbd966a79bf98b;hb=07dcef9bc7a614084f4afe39de678884a36cabf1;hp=16bb2be8d7d977d5e77fec2eabcda5f2479fdf63;hpb=517dd04f6df3103a6f2bc20b43b956d055ad983f;p=ffmpeg diff --git a/libavfilter/avf_showcqt.c b/libavfilter/avf_showcqt.c index 16bb2be8d7d..a25176dff7d 100644 --- a/libavfilter/avf_showcqt.c +++ b/libavfilter/avf_showcqt.c @@ -36,6 +36,10 @@ #include FT_FREETYPE_H #endif +#if CONFIG_LIBFONTCONFIG +#include +#endif + #include "avf_showcqt.h" #define BASEFREQ 20.01523126408007475 @@ -46,6 +50,7 @@ #define FONTCOLOR "st(0, (midi(f)-59.5)/12);" \ "st(1, if(between(ld(0),0,1), 0.5-0.5*cos(2*PI*ld(0)), 0));" \ "r(1-ld(1)) + b(ld(1))" +#define CSCHEME "1|0.5|0|0|0.5|1" #define PTS_STEP 10 #define PTS_TOLERANCE 1 @@ -70,6 +75,7 @@ static const AVOption showcqt_options[] = { { "gamma", "set sonogram gamma", OFFSET(sono_g), AV_OPT_TYPE_FLOAT, { .dbl = 3.0 }, 1.0, 7.0, FLAGS }, { "bar_g", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS }, { "gamma2", "set bargraph gamma", OFFSET(bar_g), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 1.0, 7.0, FLAGS }, + { "bar_t", "set bar transparency", OFFSET(bar_t), AV_OPT_TYPE_FLOAT, { .dbl = 1.0 }, 0.0, 1.0, FLAGS }, { "timeclamp", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.1, 1.0, FLAGS }, { "tc", "set timeclamp", OFFSET(timeclamp), AV_OPT_TYPE_DOUBLE, { .dbl = 0.17 }, 0.1, 1.0, FLAGS }, { "basefreq", "set base frequency", OFFSET(basefreq), AV_OPT_TYPE_DOUBLE, { .dbl = BASEFREQ }, 10.0, 100000.0, FLAGS }, @@ -78,11 +84,21 @@ static const AVOption showcqt_options[] = { { "tlength", "set tlength", OFFSET(tlength), AV_OPT_TYPE_STRING, { .str = TLENGTH }, CHAR_MIN, CHAR_MAX, FLAGS }, { "count", "set transform count", OFFSET(count), AV_OPT_TYPE_INT, { .i64 = 6 }, 1, 30, FLAGS }, { "fcount", "set frequency count", OFFSET(fcount), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 10, FLAGS }, - { "fontfile", "set axis font", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS }, + { "fontfile", "set axis font file", OFFSET(fontfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS }, + { "font", "set axis font", OFFSET(font), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS }, { "fontcolor", "set font color", OFFSET(fontcolor), AV_OPT_TYPE_STRING, { .str = FONTCOLOR }, CHAR_MIN, CHAR_MAX, FLAGS }, { "axisfile", "set axis image", OFFSET(axisfile), AV_OPT_TYPE_STRING, { .str = NULL }, CHAR_MIN, CHAR_MAX, FLAGS }, { "axis", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS }, { "text", "draw axis", OFFSET(axis), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, FLAGS }, + { "csp", "set color space", OFFSET(csp), AV_OPT_TYPE_INT, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, INT_MAX, FLAGS, "csp" }, + { "unspecified", "unspecified", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_UNSPECIFIED }, 0, 0, FLAGS, "csp" }, + { "bt709", "bt709", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT709 }, 0, 0, FLAGS, "csp" }, + { "fcc", "fcc", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_FCC }, 0, 0, FLAGS, "csp" }, + { "bt470bg", "bt470bg", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT470BG }, 0, 0, FLAGS, "csp" }, + { "smpte170m", "smpte170m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE170M }, 0, 0, FLAGS, "csp" }, + { "smpte240m", "smpte240m", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_SMPTE240M }, 0, 0, FLAGS, "csp" }, + { "bt2020ncl", "bt2020ncl", 0, AV_OPT_TYPE_CONST, { .i64 = AVCOL_SPC_BT2020_NCL }, 0, 0, FLAGS, "csp" }, + { "cscheme", "set color scheme", OFFSET(cscheme), AV_OPT_TYPE_STRING, { .str = CSCHEME }, CHAR_MIN, CHAR_MAX, FLAGS }, { NULL } }; @@ -484,7 +500,7 @@ static int init_axis_color(ShowCQTContext *s, AVFrame *tmp, int half) return 0; } -static int render_freetype(ShowCQTContext *s, AVFrame *tmp) +static int render_freetype(ShowCQTContext *s, AVFrame *tmp, char *fontfile) { #if CONFIG_LIBFREETYPE const char *str = "EF G A BC D "; @@ -498,13 +514,13 @@ static int render_freetype(ShowCQTContext *s, AVFrame *tmp) int non_monospace_warning = 0; int x; - if (!s->fontfile) + if (!fontfile) return AVERROR(EINVAL); if (FT_Init_FreeType(&lib)) goto fail; - if (FT_New_Face(lib, s->fontfile, 0, &face)) + if (FT_New_Face(lib, fontfile, 0, &face)) goto fail; if (FT_Set_Char_Size(face, 16*64, 0, 0, 0)) @@ -557,17 +573,81 @@ static int render_freetype(ShowCQTContext *s, AVFrame *tmp) return 0; fail: - av_log(s->ctx, AV_LOG_WARNING, "error while loading freetype font, using default font instead.\n"); + av_log(s->ctx, AV_LOG_WARNING, "error while loading freetype font.\n"); FT_Done_Face(face); FT_Done_FreeType(lib); return AVERROR(EINVAL); #else - if (s->fontfile) + if (fontfile) av_log(s->ctx, AV_LOG_WARNING, "freetype is not available, ignoring fontfile option.\n"); return AVERROR(EINVAL); #endif } +static int render_fontconfig(ShowCQTContext *s, AVFrame *tmp, char* font) +{ +#if CONFIG_LIBFONTCONFIG + FcConfig *fontconfig; + FcPattern *pat, *best; + FcResult result = FcResultMatch; + char *filename; + int i, ret; + + if (!font) + return AVERROR(EINVAL); + + for (i = 0; font[i]; i++) { + if (font[i] == '|') + font[i] = ':'; + } + + if (!(fontconfig = FcInitLoadConfigAndFonts())) { + av_log(s->ctx, AV_LOG_ERROR, "impossible to init fontconfig.\n"); + return AVERROR_UNKNOWN; + } + + if (!(pat = FcNameParse((uint8_t *)font))) { + av_log(s->ctx, AV_LOG_ERROR, "could not parse fontconfig pat.\n"); + FcConfigDestroy(fontconfig); + return AVERROR(EINVAL); + } + + FcDefaultSubstitute(pat); + + if (!FcConfigSubstitute(fontconfig, pat, FcMatchPattern)) { + av_log(s->ctx, AV_LOG_ERROR, "could not substitue fontconfig options.\n"); + FcPatternDestroy(pat); + FcConfigDestroy(fontconfig); + return AVERROR(ENOMEM); + } + + best = FcFontMatch(fontconfig, pat, &result); + FcPatternDestroy(pat); + + ret = AVERROR(EINVAL); + if (!best || result != FcResultMatch) { + av_log(s->ctx, AV_LOG_ERROR, "cannot find a valid font for %s.\n", font); + goto fail; + } + + if (FcPatternGetString(best, FC_FILE, 0, (FcChar8 **)&filename) != FcResultMatch) { + av_log(s->ctx, AV_LOG_ERROR, "no file path for %s\n", font); + goto fail; + } + + ret = render_freetype(s, tmp, filename); + +fail: + FcPatternDestroy(best); + FcConfigDestroy(fontconfig); + return ret; +#else + if (font) + av_log(s->ctx, AV_LOG_WARNING, "fontconfig is not available, ignoring font option.\n"); + return AVERROR(EINVAL); +#endif +} + static int render_default_font(AVFrame *tmp) { const char *str = "EF G A BC D "; @@ -607,7 +687,9 @@ static int init_axis_from_font(ShowCQTContext *s) if (!(s->axis_frame = av_frame_alloc())) goto fail; - if (render_freetype(s, tmp) < 0 && (default_font = 1, ret = render_default_font(tmp)) < 0) + if (render_freetype(s, tmp, s->fontfile) < 0 && + render_fontconfig(s, tmp, s->font) < 0 && + (default_font = 1, ret = render_default_font(tmp)) < 0) goto fail; if (default_font) @@ -646,35 +728,35 @@ static float calculate_gamma(float v, float g) return expf(logf(v) / g); } -static void rgb_from_cqt(ColorFloat *c, const FFTComplex *v, float g, int len) +static void rgb_from_cqt(ColorFloat *c, const FFTComplex *v, float g, int len, float cscheme[6]) { 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); + c[x].rgb.r = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), g); + c[x].rgb.g = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), g); + c[x].rgb.b = 255.0f * calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), g); } } -static void yuv_from_cqt(ColorFloat *c, const FFTComplex *v, float gamma, int len) +static void yuv_from_cqt(ColorFloat *c, const FFTComplex *v, float gamma, int len, float cm[3][3], float cscheme[6]) { 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; + r = calculate_gamma(FFMIN(1.0f, cscheme[0] * v[x].re + cscheme[3] * v[x].im), gamma); + g = calculate_gamma(FFMIN(1.0f, cscheme[1] * v[x].re + cscheme[4] * v[x].im), gamma); + b = calculate_gamma(FFMIN(1.0f, cscheme[2] * v[x].re + cscheme[5] * v[x].im), gamma); + c[x].yuv.y = cm[0][0] * r + cm[0][1] * g + cm[0][2] * b; + c[x].yuv.u = cm[1][0] * r + cm[1][1] * g + cm[1][2] * b; + c[x].yuv.v = cm[2][0] * r + cm[2][1] * g + cm[2][2] * b; } } static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h, - const ColorFloat *c, int bar_h) + const ColorFloat *c, int bar_h, float bar_t) { int x, y, w = out->width; - float mul, ht, rcp_bar_h = 1.0f / bar_h; + float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t; uint8_t *v = out->data[0], *lp; int ls = out->linesize[0]; @@ -688,6 +770,7 @@ static void draw_bar_rgb(AVFrame *out, const float *h, const float *rcp_h, *lp++ = 0; } else { mul = (h[x] - ht) * rcp_h[x]; + mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; *lp++ = lrintf(mul * c[x].rgb.r); *lp++ = lrintf(mul * c[x].rgb.g); *lp++ = lrintf(mul * c[x].rgb.b); @@ -704,6 +787,7 @@ do { \ *lpv++ = 128; \ } else { \ mul = (h[x] - ht) * rcp_h[x]; \ + mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \ *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); \ @@ -716,15 +800,16 @@ do { \ *lpy++ = 16; \ } else { \ mul = (h[x] - ht) * rcp_h[x]; \ + mul = (mul < bar_t) ? (mul * rcp_bar_t) : 1.0f; \ *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) + const ColorFloat *c, int bar_h, float bar_t) { int x, y, yh, w = out->width; - float mul, ht, rcp_bar_h = 1.0f / bar_h; + float mul, ht, rcp_bar_h = 1.0f / bar_h, rcp_bar_t = 1.0f / bar_t; 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]; @@ -1034,9 +1119,9 @@ static void process_cqt(ShowCQTContext *s) } if (s->format == AV_PIX_FMT_RGB24) - rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width); + rgb_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cscheme_v); else - yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width); + yuv_from_cqt(s->c_buf, s->cqt_result, s->sono_g, s->width, s->cmatrix, s->cscheme_v); } static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout) @@ -1075,10 +1160,11 @@ static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout) return AVERROR(ENOMEM); out->sample_aspect_ratio = av_make_q(1, 1); av_frame_set_color_range(out, AVCOL_RANGE_MPEG); + av_frame_set_colorspace(out, s->csp); 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); + s->draw_bar(out, s->h_buf, s->rcp_h_buf, s->c_buf, s->bar_h, s->bar_t); UPDATE_TIME(s->bar_time); } @@ -1100,6 +1186,62 @@ static int plot_cqt(AVFilterContext *ctx, AVFrame **frameout) return 0; } +static void init_colormatrix(ShowCQTContext *s) +{ + double kr, kg, kb; + + /* from vf_colorspace.c */ + switch (s->csp) { + default: + av_log(s->ctx, AV_LOG_WARNING, "unsupported colorspace, setting it to unspecified.\n"); + s->csp = AVCOL_SPC_UNSPECIFIED; + case AVCOL_SPC_UNSPECIFIED: + case AVCOL_SPC_BT470BG: + case AVCOL_SPC_SMPTE170M: + kr = 0.299; kb = 0.114; break; + case AVCOL_SPC_BT709: + kr = 0.2126; kb = 0.0722; break; + case AVCOL_SPC_FCC: + kr = 0.30; kb = 0.11; break; + case AVCOL_SPC_SMPTE240M: + kr = 0.212; kb = 0.087; break; + case AVCOL_SPC_BT2020_NCL: + kr = 0.2627; kb = 0.0593; break; + } + + kg = 1.0 - kr - kb; + s->cmatrix[0][0] = 219.0 * kr; + s->cmatrix[0][1] = 219.0 * kg; + s->cmatrix[0][2] = 219.0 * kb; + s->cmatrix[1][0] = -112.0 * kr / (1.0 - kb); + s->cmatrix[1][1] = -112.0 * kg / (1.0 - kb); + s->cmatrix[1][2] = 112.0; + s->cmatrix[2][0] = 112.0; + s->cmatrix[2][1] = -112.0 * kg / (1.0 - kr); + s->cmatrix[2][2] = -112.0 * kb / (1.0 - kr); +} + +static int init_cscheme(ShowCQTContext *s) +{ + char tail[2]; + int k; + + if (sscanf(s->cscheme, " %f | %f | %f | %f | %f | %f %1s", &s->cscheme_v[0], + &s->cscheme_v[1], &s->cscheme_v[2], &s->cscheme_v[3], &s->cscheme_v[4], + &s->cscheme_v[5], tail) != 6) + goto fail; + + for (k = 0; k < 6; k++) + if (isnan(s->cscheme_v[k]) || s->cscheme_v[k] < 0.0f || s->cscheme_v[k] > 1.0f) + goto fail; + + return 0; + +fail: + av_log(s->ctx, AV_LOG_ERROR, "invalid cscheme.\n"); + return AVERROR(EINVAL); +} + /* main filter control */ static av_cold int init(AVFilterContext *ctx) { @@ -1153,7 +1295,9 @@ static av_cold int init(AVFilterContext *ctx) } while(s->fcount * s->width < 1920 && s->fcount < 10); } - return 0; + init_colormatrix(s); + + return init_cscheme(s); } static av_cold void uninit(AVFilterContext *ctx)