| @@ -26,6 +26,7 @@ · 25 unmodified lines |
| 26 | 26 | * @todo implement start/stop/reset through filter command injection |
| 27 | 27 | */ |
| 28 | 28 | |
| 29 | +#include <float.h> |
| 29 | 30 | #include <math.h> |
| 30 | 31 | |
| 31 | 32 | #include "libavutil/avassert.h" |
| @@ -80,7 +81,9 @@ typedef struct EBUR128Context { · 48 unmodified lines |
| 80 | 81 | |
| 81 | 82 | /* peak metering */ |
| 82 | 83 | int peak_mode; ///< enabled peak modes |
| 84 | + double true_peak; ///< global true peak |
| 83 | 85 | double *true_peaks; ///< true peaks per channel |
| 86 | + double sample_peak; ///< global sample peak |
| 84 | 87 | double *sample_peaks; ///< sample peaks per channel |
| 85 | 88 | double *true_peaks_per_frame; ///< true peaks in a frame per channel |
| 86 | 89 | #if CONFIG_SWRESAMPLE |
| @@ -159,6 +162,8 @@ enum { · 72 unmodified lines |
| 159 | 162 | #define A AV_OPT_FLAG_AUDIO_PARAM |
| 160 | 163 | #define V AV_OPT_FLAG_VIDEO_PARAM |
| 161 | 164 | #define F AV_OPT_FLAG_FILTERING_PARAM |
| 165 | +#define X AV_OPT_FLAG_EXPORT |
| 166 | +#define R AV_OPT_FLAG_READONLY |
| 162 | 167 | static const AVOption ebur128_options[] = { |
| 163 | 168 | { "video", "set video output", OFFSET(do_video), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, V|F }, |
| 164 | 169 | { "size", "set video size", OFFSET(w), AV_OPT_TYPE_IMAGE_SIZE, {.str = "640x480"}, 0, 0, V|F }, |
| @@ -185,6 +190,12 @@ static const AVOption ebur128_options[] = { · 20 unmodified lines |
| 185 | 190 | { "LUFS", "display absolute values (LUFS)", 0, AV_OPT_TYPE_CONST, {.i64 = SCALE_TYPE_ABSOLUTE}, INT_MIN, INT_MAX, V|F, "scaletype" }, |
| 186 | 191 | { "relative", "display values relative to target (LU)", 0, AV_OPT_TYPE_CONST, {.i64 = SCALE_TYPE_RELATIVE}, INT_MIN, INT_MAX, V|F, "scaletype" }, |
| 187 | 192 | { "LU", "display values relative to target (LU)", 0, AV_OPT_TYPE_CONST, {.i64 = SCALE_TYPE_RELATIVE}, INT_MIN, INT_MAX, V|F, "scaletype" }, |
| 193 | + { "integrated", "integrated loudness (LUFS)", OFFSET(integrated_loudness), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -DBL_MAX, DBL_MAX, A|F|X|R }, |
| 194 | + { "range", "loudness range (LU)", OFFSET(loudness_range), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -DBL_MAX, DBL_MAX, A|F|X|R }, |
| 195 | + { "lra_low", "LRA low (LUFS)", OFFSET(lra_low), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -DBL_MAX, DBL_MAX, A|F|X|R }, |
| 196 | + { "lra_high", "LRA high (LUFS)", OFFSET(lra_high), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -DBL_MAX, DBL_MAX, A|F|X|R }, |
| 197 | + { "sample_peak", "sample peak (dBFS)", OFFSET(sample_peak), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -DBL_MAX, DBL_MAX, A|F|X|R }, |
| 198 | + { "true_peak", "true peak (dBFS)", OFFSET(true_peak), AV_OPT_TYPE_DOUBLE, {.dbl = 0}, -DBL_MAX, DBL_MAX, A|F|X|R }, |
| 188 | 199 | { NULL }, |
| 189 | 200 | }; |
| 190 | 201 | |
| @@ -701,6 +712,20 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples) · 510 unmodified lines |
| 701 | 712 | ebur128->i3000.cache[ch][bin_id_3000] = bin; |
| 702 | 713 | } |
| 703 | 714 | |
| 715 | +#define FIND_PEAK(global, sp, ptype) do { \ |
| 716 | + int ch; \ |
| 717 | + double maxpeak; \ |
| 718 | + maxpeak = 0.0; \ |
| 719 | + if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \ |
| 720 | + for (ch = 0; ch < ebur128->nb_channels; ch++) \ |
| 721 | + maxpeak = FFMAX(maxpeak, sp[ch]); \ |
| 722 | + global = DBFS(maxpeak); \ |
| 723 | + } \ |
| 724 | +} while (0) |
| 725 | + |
| 726 | + FIND_PEAK(ebur128->sample_peak, ebur128->sample_peaks, SAMPLES); |
| 727 | + FIND_PEAK(ebur128->true_peak, ebur128->true_peaks, TRUE); |
| 728 | + |
| 704 | 729 | /* For integrated loudness, gating blocks are 400ms long with 75% |
| 705 | 730 | * overlap (see BS.1770-2 p5), so a re-computation is needed each 100ms |
| 706 | 731 | * (4800 samples at 48kHz). */ |
| @@ -1023,7 +1048,6 @@ static int query_formats(AVFilterContext *ctx) · 316 unmodified lines |
| 1023 | 1048 | |
| 1024 | 1049 | static av_cold void uninit(AVFilterContext *ctx) |
| 1025 | 1050 | { |
| 1026 | | − int i; |
| 1027 | 1051 | EBUR128Context *ebur128 = ctx->priv; |
| 1028 | 1052 | |
| 1029 | 1053 | /* dual-mono correction */ |
| @@ -1047,21 +1071,15 @@ static av_cold void uninit(AVFilterContext *ctx) · 17 unmodified lines |
| 1047 | 1071 | ebur128->loudness_range, ebur128->i3000.rel_threshold, |
| 1048 | 1072 | ebur128->lra_low, ebur128->lra_high); |
| 1049 | 1073 | |
| 1050 | | −#define PRINT_PEAK_SUMMARY(str, sp, ptype) do { \ |
| 1051 | | − int ch; \ |
| 1052 | | − double maxpeak; \ |
| 1053 | | − maxpeak = 0.0; \ |
| 1074 | +#define PRINT_PEAK_SUMMARY(str, value, ptype) do { \ |
| 1054 | 1075 | if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \ |
| 1055 | | − for (ch = 0; ch < ebur128->nb_channels; ch++) \ |
| 1056 | | − maxpeak = FFMAX(maxpeak, sp[ch]); \ |
| 1057 | 1076 | av_log(ctx, AV_LOG_INFO, "\n\n " str " peak:\n" \ |
| 1058 | | − " Peak: %5.1f dBFS", \ |
| 1059 | | − DBFS(maxpeak)); \ |
| 1077 | + " Peak: %5.1f dBFS", value); \ |
| 1060 | 1078 | } \ |
| 1061 | 1079 | } while (0) |
| 1062 | 1080 | |
| 1063 | | − PRINT_PEAK_SUMMARY("Sample", ebur128->sample_peaks, SAMPLES); |
| 1064 | | − PRINT_PEAK_SUMMARY("True", ebur128->true_peaks, TRUE); |
| 1081 | + PRINT_PEAK_SUMMARY("Sample", ebur128->sample_peak, SAMPLES); |
| 1082 | + PRINT_PEAK_SUMMARY("True", ebur128->true_peak, TRUE); |
| 1065 | 1083 | av_log(ctx, AV_LOG_INFO, "\n"); |
| 1066 | 1084 | |
| 1067 | 1085 | av_freep(&ebur128->y_line_ref); |
| @@ -1076,7 +1094,7 @@ static av_cold void uninit(AVFilterContext *ctx) · 8 unmodified lines |
| 1076 | 1094 | av_freep(&ebur128->i3000.sum); |
| 1077 | 1095 | av_freep(&ebur128->i400.histogram); |
| 1078 | 1096 | av_freep(&ebur128->i3000.histogram); |
| 1079 | | − for (i = 0; i < ebur128->nb_channels; i++) { |
| 1097 | + for (int i = 0; i < ebur128->nb_channels; i++) { |
| 1080 | 1098 | if (ebur128->i400.cache) |
| 1081 | 1099 | av_freep(&ebur128->i400.cache[i]); |
| 1082 | 1100 | if (ebur128->i3000.cache) |