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avfilter/af_astats: Only print header lines when values are to be printed

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Avoids empty "Channel" or "Overall" header lines added to log output
when measurement is restricted to one scope using
"measure_perchannel=none" or "measure_overall=none".

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>
This commit is contained in:
Tobias Rapp 2021-03-25 17:26:37 +01:00
parent f531a1a4e8
commit ca56299fb3
1 changed files with 4 additions and 2 deletions
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6
libavfilter/af_astats.c
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@ -705,7 +705,8 @@ static void print_stats(AVFilterContext *ctx)
if (fabs(p->sigma_x) > fabs(max_sigma_x))
max_sigma_x = p->sigma_x;
av_log(ctx, AV_LOG_INFO, "Channel: %d\n", c + 1);
if (s->measure_perchannel != MEASURE_NONE)
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)
@ -757,7 +758,8 @@ static void print_stats(AVFilterContext *ctx)
av_log(ctx, AV_LOG_INFO, "Number of denormals: %"PRId64"\n", p->nb_denormals);
}
av_log(ctx, AV_LOG_INFO, "Overall\n");
if (s->measure_overall != MEASURE_NONE)
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)