diff options
| author | Paul B Mahol <onemda@gmail.com> | 2015-12-28 12:02:14 +0100 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2015-12-28 12:23:59 +0100 |
| commit | 47aaebd63e408bc59dc9e35dd372c1f603be2d3a (patch) | |
| tree | c8200e4483fcbc6283bf4bb4de7d2d0637716ebb | |
| parent | b841fe002a2bf67ca4381fd4dd522c2cfee22be8 (diff) | |
avfilter/af_silenceremove: make size of window user configurable
Signed-off-by: Paul B Mahol <onemda@gmail.com>
| -rw-r--r-- | doc/filters.texi | 4 | ||||
| -rw-r--r-- | libavfilter/af_silenceremove.c | 4 |
2 files changed, 7 insertions, 1 deletions
diff --git a/doc/filters.texi b/doc/filters.texi index abec3c3a84..2b1fabe20e 100644 --- a/doc/filters.texi +++ b/doc/filters.texi @@ -2973,6 +2973,10 @@ to remove the pauses completely. Default value is @code{0}. Set how is silence detected. Can be @code{rms} or @code{peak}. Second is faster and works better with digital silence which is exactly 0. Default value is @code{rms}. + +@item window +Set ratio used to calculate size of window for detecting silence. +Default value is @code{0.02}. Allowed range is from @code{0} to @code{10}. @end table @subsection Examples diff --git a/libavfilter/af_silenceremove.c b/libavfilter/af_silenceremove.c index dc3f4ff91d..f156d1883d 100644 --- a/libavfilter/af_silenceremove.c +++ b/libavfilter/af_silenceremove.c @@ -61,6 +61,7 @@ typedef struct SilenceRemoveContext { size_t stop_holdoff_end; int stop_found_periods; + double window_ratio; double *window; double *window_current; double *window_end; @@ -89,6 +90,7 @@ static const AVOption silenceremove_options[] = { { "detection", NULL, OFFSET(detection), AV_OPT_TYPE_INT, {.i64=1}, 0, 1, FLAGS, "detection" }, { "peak", 0, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "detection" }, { "rms", 0, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "detection" }, + { "window", NULL, OFFSET(window_ratio), AV_OPT_TYPE_DOUBLE, {.dbl=0.02}, 0, 10, FLAGS }, { NULL } }; @@ -175,7 +177,7 @@ static int config_input(AVFilterLink *inlink) AVFilterContext *ctx = inlink->dst; SilenceRemoveContext *s = ctx->priv; - s->window_size = (inlink->sample_rate / 50) * inlink->channels; + s->window_size = FFMAX((inlink->sample_rate * s->window_ratio), 1) * inlink->channels; s->window = av_malloc_array(s->window_size, sizeof(*s->window)); if (!s->window) return AVERROR(ENOMEM); |