From 3b1939bb6679e4e2e91eb41e7f09830ac418de16 Mon Sep 17 00:00:00 2001 From: Kyle Swanson Date: Wed, 28 Oct 2015 21:29:59 -0500 Subject: [PATCH] avfilter/tremolo: fix wavetable buffer size Signed-off-by: Kyle Swanson Reviewed-by: Paul B Mahol Signed-off-by: Michael Niedermayer --- libavfilter/af_tremolo.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/libavfilter/af_tremolo.c b/libavfilter/af_tremolo.c index 50df2e4cc0..572e9e3b56 100644 --- a/libavfilter/af_tremolo.c +++ b/libavfilter/af_tremolo.c @@ -72,7 +72,7 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *in) dst += channels; src += channels; s->index++; - if (s->index >= inlink->sample_rate) + if (s->index >= inlink->sample_rate / s->freq) s->index = 0; } @@ -125,11 +125,11 @@ static int config_input(AVFilterLink *inlink) const double offset = 1. - s->depth / 2.; int i; - s->table = av_malloc_array(inlink->sample_rate, sizeof(*s->table)); + s->table = av_malloc_array(inlink->sample_rate / s->freq, sizeof(*s->table)); if (!s->table) return AVERROR(ENOMEM); - for (i = 0; i < inlink->sample_rate; i++) { + for (i = 0; i < inlink->sample_rate / s->freq; i++) { double env = s->freq * i / inlink->sample_rate; env = sin(2 * M_PI * fmod(env + 0.25, 1.0)); s->table[i] = env * (1 - fabs(offset)) + offset;