diff --git a/doc/filters.texi b/doc/filters.texi index 4bf96b6d90..4ffb392a7f 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2156,6 +2156,17 @@ For description what each key means read below. @item reset Set number of frame after which stats are going to be recalculated. Default is disabled. + +@item measure_perchannel +Select the entries which need to be measured per channel. The metadata keys can +be used as flags, default is @option{all} which measures everything. +@option{none} disables all per channel measurement. + +@item measure_overall +Select the entries which need to be measured overall. The metadata keys can +be used as flags, default is @option{all} which measures everything. +@option{none} disables all overall measurement. + @end table A description of each shown parameter follows: diff --git a/libavfilter/af_astats.c b/libavfilter/af_astats.c index a91cfdc3a7..09fbd8c1ae 100644 --- a/libavfilter/af_astats.c +++ b/libavfilter/af_astats.c @@ -26,6 +26,29 @@ #include "avfilter.h" #include "internal.h" +#define MEASURE_ALL UINT_MAX +#define MEASURE_NONE 0 + +#define MEASURE_DC_OFFSET (1 << 0) +#define MEASURE_MIN_LEVEL (1 << 1) +#define MEASURE_MAX_LEVEL (1 << 2) +#define MEASURE_MIN_DIFFERENCE (1 << 3) +#define MEASURE_MAX_DIFFERENCE (1 << 4) +#define MEASURE_MEAN_DIFFERENCE (1 << 5) +#define MEASURE_RMS_DIFFERENCE (1 << 6) +#define MEASURE_PEAK_LEVEL (1 << 7) +#define MEASURE_RMS_LEVEL (1 << 8) +#define MEASURE_RMS_PEAK (1 << 9) +#define MEASURE_RMS_TROUGH (1 << 10) +#define MEASURE_CREST_FACTOR (1 << 11) +#define MEASURE_FLAT_FACTOR (1 << 12) +#define MEASURE_PEAK_COUNT (1 << 13) +#define MEASURE_BIT_DEPTH (1 << 14) +#define MEASURE_DYNAMIC_RANGE (1 << 15) +#define MEASURE_ZERO_CROSSINGS (1 << 16) +#define MEASURE_ZERO_CROSSINGS_RATE (1 << 17) +#define MEASURE_NUMBER_OF_SAMPLES (1 << 18) + typedef struct ChannelStats { double last; double last_non_zero; @@ -56,6 +79,8 @@ typedef struct AudioStatsContext { int reset_count; int nb_frames; int maxbitdepth; + int measure_perchannel; + int measure_overall; } AudioStatsContext; #define OFFSET(x) offsetof(AudioStatsContext, x) @@ -65,6 +90,29 @@ static const AVOption astats_options[] = { { "length", "set the window length", OFFSET(time_constant), AV_OPT_TYPE_DOUBLE, {.dbl=.05}, .01, 10, FLAGS }, { "metadata", "inject metadata in the filtergraph", OFFSET(metadata), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS }, { "reset", "recalculate stats after this many frames", OFFSET(reset_count), AV_OPT_TYPE_INT, {.i64=0}, 0, INT_MAX, FLAGS }, + { "measure_perchannel", "only measure_perchannel these per-channel statistics", OFFSET(measure_perchannel), AV_OPT_TYPE_FLAGS, {.i64=MEASURE_ALL}, 0, UINT_MAX, FLAGS, "measure" }, + { "none" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_NONE }, 0, 0, FLAGS, "measure" }, + { "all" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_ALL }, 0, 0, FLAGS, "measure" }, + { "DC_offset" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_DC_OFFSET }, 0, 0, FLAGS, "measure" }, + { "Min_level" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_MIN_LEVEL }, 0, 0, FLAGS, "measure" }, + { "Max_level" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_MAX_LEVEL }, 0, 0, FLAGS, "measure" }, + { "Min_difference" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_MIN_DIFFERENCE }, 0, 0, FLAGS, "measure" }, + { "Max_difference" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_MAX_DIFFERENCE }, 0, 0, FLAGS, "measure" }, + { "Mean_difference" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_MEAN_DIFFERENCE }, 0, 0, FLAGS, "measure" }, + { "RMS_difference" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_RMS_DIFFERENCE }, 0, 0, FLAGS, "measure" }, + { "Peak_level" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_PEAK_LEVEL }, 0, 0, FLAGS, "measure" }, + { "RMS_level" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_RMS_LEVEL }, 0, 0, FLAGS, "measure" }, + { "RMS_peak" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_RMS_PEAK }, 0, 0, FLAGS, "measure" }, + { "RMS_trough" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_RMS_TROUGH }, 0, 0, FLAGS, "measure" }, + { "Crest_factor" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_CREST_FACTOR }, 0, 0, FLAGS, "measure" }, + { "Flat_factor" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_FLAT_FACTOR }, 0, 0, FLAGS, "measure" }, + { "Peak_count" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_PEAK_COUNT }, 0, 0, FLAGS, "measure" }, + { "Bit_depth" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_BIT_DEPTH }, 0, 0, FLAGS, "measure" }, + { "Dynamic_range" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_DYNAMIC_RANGE }, 0, 0, FLAGS, "measure" }, + { "Zero_crossings" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_ZERO_CROSSINGS }, 0, 0, FLAGS, "measure" }, + { "Zero_crossings_rate" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_ZERO_CROSSINGS_RATE }, 0, 0, FLAGS, "measure" }, + { "Number_of_samples" , "", 0, AV_OPT_TYPE_CONST, {.i64=MEASURE_NUMBER_OF_SAMPLES }, 0, 0, FLAGS, "measure" }, + { "measure_overall", "only measure_perchannel these overall statistics", OFFSET(measure_overall), AV_OPT_TYPE_FLAGS, {.i64=MEASURE_ALL}, 0, UINT_MAX, FLAGS, "measure" }, { NULL } }; @@ -282,44 +330,79 @@ static void set_metadata(AudioStatsContext *s, AVDictionary **metadata) if (fabs(p->sigma_x) > fabs(max_sigma_x)) max_sigma_x = p->sigma_x; + if (s->measure_perchannel & MEASURE_DC_OFFSET) set_meta(metadata, c + 1, "DC_offset", "%f", p->sigma_x / p->nb_samples); + if (s->measure_perchannel & MEASURE_MIN_LEVEL) set_meta(metadata, c + 1, "Min_level", "%f", p->min); + if (s->measure_perchannel & MEASURE_MAX_LEVEL) set_meta(metadata, c + 1, "Max_level", "%f", p->max); + if (s->measure_perchannel & MEASURE_MIN_DIFFERENCE) set_meta(metadata, c + 1, "Min_difference", "%f", p->min_diff); + if (s->measure_perchannel & MEASURE_MAX_DIFFERENCE) set_meta(metadata, c + 1, "Max_difference", "%f", p->max_diff); + if (s->measure_perchannel & MEASURE_MEAN_DIFFERENCE) set_meta(metadata, c + 1, "Mean_difference", "%f", p->diff1_sum / (p->nb_samples - 1)); + if (s->measure_perchannel & MEASURE_RMS_DIFFERENCE) set_meta(metadata, c + 1, "RMS_difference", "%f", sqrt(p->diff1_sum_x2 / (p->nb_samples - 1))); + if (s->measure_perchannel & MEASURE_PEAK_LEVEL) set_meta(metadata, c + 1, "Peak_level", "%f", LINEAR_TO_DB(FFMAX(-p->nmin, p->nmax))); + if (s->measure_perchannel & MEASURE_RMS_LEVEL) set_meta(metadata, c + 1, "RMS_level", "%f", LINEAR_TO_DB(sqrt(p->sigma_x2 / p->nb_samples))); + if (s->measure_perchannel & MEASURE_RMS_PEAK) set_meta(metadata, c + 1, "RMS_peak", "%f", LINEAR_TO_DB(sqrt(p->max_sigma_x2))); + if (s->measure_perchannel & MEASURE_RMS_TROUGH) set_meta(metadata, c + 1, "RMS_trough", "%f", LINEAR_TO_DB(sqrt(p->min_sigma_x2))); + if (s->measure_perchannel & MEASURE_CREST_FACTOR) set_meta(metadata, c + 1, "Crest_factor", "%f", p->sigma_x2 ? FFMAX(-p->min, p->max) / sqrt(p->sigma_x2 / p->nb_samples) : 1); + if (s->measure_perchannel & MEASURE_FLAT_FACTOR) set_meta(metadata, c + 1, "Flat_factor", "%f", LINEAR_TO_DB((p->min_runs + p->max_runs) / (p->min_count + p->max_count))); + if (s->measure_perchannel & MEASURE_PEAK_COUNT) set_meta(metadata, c + 1, "Peak_count", "%f", (float)(p->min_count + p->max_count)); + if (s->measure_perchannel & MEASURE_BIT_DEPTH) { bit_depth(s, p->mask, p->imask, &depth); set_meta(metadata, c + 1, "Bit_depth", "%f", depth.num); set_meta(metadata, c + 1, "Bit_depth2", "%f", depth.den); + } + if (s->measure_perchannel & MEASURE_DYNAMIC_RANGE) set_meta(metadata, c + 1, "Dynamic_range", "%f", LINEAR_TO_DB(2 * FFMAX(FFABS(p->min), FFABS(p->max))/ p->min_non_zero)); + if (s->measure_perchannel & MEASURE_ZERO_CROSSINGS) set_meta(metadata, c + 1, "Zero_crossings", "%f", p->zero_runs); + if (s->measure_perchannel & MEASURE_ZERO_CROSSINGS_RATE) set_meta(metadata, c + 1, "Zero_crossings_rate", "%f", p->zero_runs/(double)p->nb_samples); } + if (s->measure_overall & MEASURE_DC_OFFSET) set_meta(metadata, 0, "Overall.DC_offset", "%f", max_sigma_x / (nb_samples / s->nb_channels)); + if (s->measure_overall & MEASURE_MIN_LEVEL) set_meta(metadata, 0, "Overall.Min_level", "%f", min); + if (s->measure_overall & MEASURE_MAX_LEVEL) set_meta(metadata, 0, "Overall.Max_level", "%f", max); + if (s->measure_overall & MEASURE_MIN_DIFFERENCE) set_meta(metadata, 0, "Overall.Min_difference", "%f", min_diff); + if (s->measure_overall & MEASURE_MAX_DIFFERENCE) set_meta(metadata, 0, "Overall.Max_difference", "%f", max_diff); + if (s->measure_overall & MEASURE_MEAN_DIFFERENCE) set_meta(metadata, 0, "Overall.Mean_difference", "%f", diff1_sum / (nb_samples - s->nb_channels)); + if (s->measure_overall & MEASURE_RMS_DIFFERENCE) set_meta(metadata, 0, "Overall.RMS_difference", "%f", sqrt(diff1_sum_x2 / (nb_samples - s->nb_channels))); + if (s->measure_overall & MEASURE_PEAK_LEVEL) set_meta(metadata, 0, "Overall.Peak_level", "%f", LINEAR_TO_DB(FFMAX(-nmin, nmax))); + if (s->measure_overall & MEASURE_RMS_LEVEL) set_meta(metadata, 0, "Overall.RMS_level", "%f", LINEAR_TO_DB(sqrt(sigma_x2 / nb_samples))); + if (s->measure_overall & MEASURE_RMS_PEAK) set_meta(metadata, 0, "Overall.RMS_peak", "%f", LINEAR_TO_DB(sqrt(max_sigma_x2))); + if (s->measure_overall & MEASURE_RMS_TROUGH) set_meta(metadata, 0, "Overall.RMS_trough", "%f", LINEAR_TO_DB(sqrt(min_sigma_x2))); + if (s->measure_overall & MEASURE_FLAT_FACTOR) set_meta(metadata, 0, "Overall.Flat_factor", "%f", LINEAR_TO_DB((min_runs + max_runs) / (min_count + max_count))); + if (s->measure_overall & MEASURE_PEAK_COUNT) set_meta(metadata, 0, "Overall.Peak_count", "%f", (float)(min_count + max_count) / (double)s->nb_channels); + if (s->measure_overall & MEASURE_BIT_DEPTH) { bit_depth(s, mask, imask, &depth); set_meta(metadata, 0, "Overall.Bit_depth", "%f", depth.num); set_meta(metadata, 0, "Overall.Bit_depth2", "%f", depth.den); + } + if (s->measure_overall & MEASURE_NUMBER_OF_SAMPLES) set_meta(metadata, 0, "Overall.Number_of_samples", "%f", nb_samples / s->nb_channels); } @@ -478,45 +561,80 @@ static void print_stats(AVFilterContext *ctx) max_sigma_x = p->sigma_x; av_log(ctx, AV_LOG_INFO, "Channel: %d\n", c + 1); + if (s->measure_perchannel & MEASURE_DC_OFFSET) av_log(ctx, AV_LOG_INFO, "DC offset: %f\n", p->sigma_x / p->nb_samples); + if (s->measure_perchannel & MEASURE_MIN_LEVEL) av_log(ctx, AV_LOG_INFO, "Min level: %f\n", p->min); + if (s->measure_perchannel & MEASURE_MAX_LEVEL) av_log(ctx, AV_LOG_INFO, "Max level: %f\n", p->max); + if (s->measure_perchannel & MEASURE_MIN_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "Min difference: %f\n", p->min_diff); + if (s->measure_perchannel & MEASURE_MAX_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "Max difference: %f\n", p->max_diff); + if (s->measure_perchannel & MEASURE_MEAN_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "Mean difference: %f\n", p->diff1_sum / (p->nb_samples - 1)); + if (s->measure_perchannel & MEASURE_RMS_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "RMS difference: %f\n", sqrt(p->diff1_sum_x2 / (p->nb_samples - 1))); + if (s->measure_perchannel & MEASURE_PEAK_LEVEL) av_log(ctx, AV_LOG_INFO, "Peak level dB: %f\n", LINEAR_TO_DB(FFMAX(-p->nmin, p->nmax))); + if (s->measure_perchannel & MEASURE_RMS_LEVEL) av_log(ctx, AV_LOG_INFO, "RMS level dB: %f\n", LINEAR_TO_DB(sqrt(p->sigma_x2 / p->nb_samples))); + if (s->measure_perchannel & MEASURE_RMS_PEAK) av_log(ctx, AV_LOG_INFO, "RMS peak dB: %f\n", LINEAR_TO_DB(sqrt(p->max_sigma_x2))); + if (s->measure_perchannel & MEASURE_RMS_TROUGH) if (p->min_sigma_x2 != 1) av_log(ctx, AV_LOG_INFO, "RMS trough dB: %f\n",LINEAR_TO_DB(sqrt(p->min_sigma_x2))); + if (s->measure_perchannel & MEASURE_CREST_FACTOR) av_log(ctx, AV_LOG_INFO, "Crest factor: %f\n", p->sigma_x2 ? FFMAX(-p->nmin, p->nmax) / sqrt(p->sigma_x2 / p->nb_samples) : 1); + if (s->measure_perchannel & MEASURE_FLAT_FACTOR) av_log(ctx, AV_LOG_INFO, "Flat factor: %f\n", LINEAR_TO_DB((p->min_runs + p->max_runs) / (p->min_count + p->max_count))); + if (s->measure_perchannel & MEASURE_PEAK_COUNT) av_log(ctx, AV_LOG_INFO, "Peak count: %"PRId64"\n", p->min_count + p->max_count); + if (s->measure_perchannel & MEASURE_BIT_DEPTH) { bit_depth(s, p->mask, p->imask, &depth); av_log(ctx, AV_LOG_INFO, "Bit depth: %u/%u\n", depth.num, depth.den); + } + if (s->measure_perchannel & MEASURE_DYNAMIC_RANGE) av_log(ctx, AV_LOG_INFO, "Dynamic range: %f\n", LINEAR_TO_DB(2 * FFMAX(FFABS(p->min), FFABS(p->max))/ p->min_non_zero)); + if (s->measure_perchannel & MEASURE_ZERO_CROSSINGS) av_log(ctx, AV_LOG_INFO, "Zero crossings: %"PRId64"\n", p->zero_runs); + if (s->measure_perchannel & MEASURE_ZERO_CROSSINGS_RATE) av_log(ctx, AV_LOG_INFO, "Zero crossings rate: %f\n", p->zero_runs/(double)p->nb_samples); } av_log(ctx, AV_LOG_INFO, "Overall\n"); + if (s->measure_overall & MEASURE_DC_OFFSET) av_log(ctx, AV_LOG_INFO, "DC offset: %f\n", max_sigma_x / (nb_samples / s->nb_channels)); + if (s->measure_overall & MEASURE_MIN_LEVEL) av_log(ctx, AV_LOG_INFO, "Min level: %f\n", min); + if (s->measure_overall & MEASURE_MAX_LEVEL) av_log(ctx, AV_LOG_INFO, "Max level: %f\n", max); + if (s->measure_overall & MEASURE_MIN_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "Min difference: %f\n", min_diff); + if (s->measure_overall & MEASURE_MAX_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "Max difference: %f\n", max_diff); + if (s->measure_overall & MEASURE_MEAN_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "Mean difference: %f\n", diff1_sum / (nb_samples - s->nb_channels)); + if (s->measure_overall & MEASURE_RMS_DIFFERENCE) av_log(ctx, AV_LOG_INFO, "RMS difference: %f\n", sqrt(diff1_sum_x2 / (nb_samples - s->nb_channels))); + if (s->measure_overall & MEASURE_PEAK_LEVEL) av_log(ctx, AV_LOG_INFO, "Peak level dB: %f\n", LINEAR_TO_DB(FFMAX(-nmin, nmax))); + if (s->measure_overall & MEASURE_RMS_LEVEL) av_log(ctx, AV_LOG_INFO, "RMS level dB: %f\n", LINEAR_TO_DB(sqrt(sigma_x2 / nb_samples))); + if (s->measure_overall & MEASURE_RMS_PEAK) av_log(ctx, AV_LOG_INFO, "RMS peak dB: %f\n", LINEAR_TO_DB(sqrt(max_sigma_x2))); + if (s->measure_overall & MEASURE_RMS_TROUGH) if (min_sigma_x2 != 1) av_log(ctx, AV_LOG_INFO, "RMS trough dB: %f\n", LINEAR_TO_DB(sqrt(min_sigma_x2))); + if (s->measure_overall & MEASURE_FLAT_FACTOR) av_log(ctx, AV_LOG_INFO, "Flat factor: %f\n", LINEAR_TO_DB((min_runs + max_runs) / (min_count + max_count))); + if (s->measure_overall & MEASURE_PEAK_COUNT) av_log(ctx, AV_LOG_INFO, "Peak count: %f\n", (min_count + max_count) / (double)s->nb_channels); + if (s->measure_overall & MEASURE_BIT_DEPTH) { bit_depth(s, mask, imask, &depth); av_log(ctx, AV_LOG_INFO, "Bit depth: %u/%u\n", depth.num, depth.den); + } + if (s->measure_overall & MEASURE_NUMBER_OF_SAMPLES) av_log(ctx, AV_LOG_INFO, "Number of samples: %"PRId64"\n", nb_samples / s->nb_channels); }