diff options
| author | Jean First <jeanfirst@gmail.com> | 2014-01-25 23:19:06 +0100 |
|---|---|---|
| committer | Clément Bœsch <u@pkh.me> | 2014-02-02 20:45:09 +0100 |
| commit | 6ef2315aafe352998fd612dd6cd21c4eb9731031 (patch) | |
| tree | be4b18c868c4d5967e52b75d8298c8db21d564eb /libavfilter/f_ebur128.c | |
| parent | 7f42bfad5d763f06d6fb6e91a8cef78f7fad9bf2 (diff) | |
lavfi/ebur128: print peak metering in dBFS
Signed-off-by: Jean First <jeanfirst@gmail.com>
Diffstat (limited to 'libavfilter/f_ebur128.c')
| -rw-r--r-- | libavfilter/f_ebur128.c | 35 |
1 files changed, 26 insertions, 9 deletions
diff --git a/libavfilter/f_ebur128.c b/libavfilter/f_ebur128.c index 503d87ac32..53815ec161 100644 --- a/libavfilter/f_ebur128.c +++ b/libavfilter/f_ebur128.c @@ -23,7 +23,6 @@ * EBU R.128 implementation * @see http://tech.ebu.ch/loudness * @see https://www.youtube.com/watch?v=iuEtQqC-Sqo "EBU R128 Introduction - Florian Camerer" - * @todo True Peak * @todo implement start/stop/reset through filter command injection * @todo support other frequencies to avoid resampling */ @@ -443,6 +442,7 @@ static int config_audio_output(AVFilterLink *outlink) #define ENERGY(loudness) (pow(10, ((loudness) + 0.691) / 10.)) #define LOUDNESS(energy) (-0.691 + 10 * log10(energy)) +#define DBFS(energy) (20 * log10(energy)) static struct hist_entry *get_histogram(void) { @@ -791,13 +791,13 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *insamples) loudness_400, loudness_3000, ebur128->integrated_loudness, ebur128->loudness_range); -#define PRINT_PEAKS(str, sp, ptype) do { \ - if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \ - av_log(ctx, ebur128->loglevel, " [" str ":"); \ - for (ch = 0; ch < nb_channels; ch++) \ - av_log(ctx, ebur128->loglevel, " %.5f", sp[ch]); \ - av_log(ctx, ebur128->loglevel, "]"); \ - } \ +#define PRINT_PEAKS(str, sp, ptype) do { \ + if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \ + av_log(ctx, ebur128->loglevel, " " str ":"); \ + for (ch = 0; ch < nb_channels; ch++) \ + av_log(ctx, ebur128->loglevel, " %5.1f", DBFS(sp[ch])); \ + av_log(ctx, ebur128->loglevel, " dBFS"); \ + } \ } while (0) PRINT_PEAKS("SPK", ebur128->sample_peaks, SAMPLES); @@ -867,11 +867,28 @@ static av_cold void uninit(AVFilterContext *ctx) " LRA: %5.1f LU\n" " Threshold: %5.1f LUFS\n" " LRA low: %5.1f LUFS\n" - " LRA high: %5.1f LUFS\n", + " LRA high: %5.1f LUFS", ebur128->integrated_loudness, ebur128->i400.rel_threshold, ebur128->loudness_range, ebur128->i3000.rel_threshold, ebur128->lra_low, ebur128->lra_high); +#define PRINT_PEAK_SUMMARY(str, sp, ptype) do { \ + int ch; \ + double maxpeak; \ + maxpeak = 0.0; \ + if (ebur128->peak_mode & PEAK_MODE_ ## ptype ## _PEAKS) { \ + for (ch = 0; ch < ebur128->nb_channels; ch++) \ + maxpeak = FFMAX(maxpeak, sp[ch]); \ + av_log(ctx, AV_LOG_INFO, "\n\n " str " peak:\n" \ + " Peak: %5.1f dBFS", \ + DBFS(maxpeak)); \ + } \ +} while (0) + + PRINT_PEAK_SUMMARY("Sample", ebur128->sample_peaks, SAMPLES); + PRINT_PEAK_SUMMARY("True", ebur128->true_peaks, TRUE); + av_log(ctx, AV_LOG_INFO, "\n"); + av_freep(&ebur128->y_line_ref); av_freep(&ebur128->ch_weighting); av_freep(&ebur128->true_peaks); |