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Code Issues Releases Activity

avfilter/af_silenceremove: use separate variable for size of cache

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This commit is contained in:
Paul B Mahol 2023-05-28 14:35:46 +02:00
parent 364c03d9fe
commit aa4acc111e
2 changed files with 20 additions and 5 deletions
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17
libavfilter/af_silenceremove.c
View File

@ -94,6 +94,7 @@ typedef struct SilenceRemoveContext {
int *stop_back;
int64_t window_duration;
int cache_size;
int start_window_pos;
int start_window_size;
@ -224,10 +225,22 @@ static int config_output(AVFilterLink *outlink)
AVFilterContext *ctx = outlink->src;
SilenceRemoveContext *s = ctx->priv;
switch (s->detection) {
case D_AVG:
case D_RMS:
s->cache_size = 1;
break;
case D_MEDIAN:
case D_PEAK:
case D_PTP:
s->cache_size = s->window_duration;
break;
}
s->start_window = ff_get_audio_buffer(outlink, s->window_duration);
s->stop_window = ff_get_audio_buffer(outlink, s->window_duration);
s->start_cache = av_calloc(outlink->ch_layout.nb_channels, s->window_duration * sizeof(*s->start_cache));
s->stop_cache = av_calloc(outlink->ch_layout.nb_channels, s->window_duration * sizeof(*s->stop_cache));
s->start_cache = av_calloc(outlink->ch_layout.nb_channels, s->cache_size * sizeof(*s->start_cache));
s->stop_cache = av_calloc(outlink->ch_layout.nb_channels, s->cache_size * sizeof(*s->stop_cache));
if (!s->start_window || !s->stop_window || !s->start_cache || !s->stop_cache)
return AVERROR(ENOMEM);

8
libavfilter/silenceremove_template.c
View File

@ -328,6 +328,7 @@ static void fn(filter_start)(AVFilterContext *ctx,
ftype *start_cache = (ftype *)s->start_cache;
const int start_silence = s->start_silence;
int window_size = start_window_nb_samples;
const int cache_size = s->cache_size;
int *front = s->start_front;
int *back = s->start_back;
@ -352,7 +353,7 @@ static void fn(filter_start)(AVFilterContext *ctx,
ftype start_ow = startw[start_wpos + ch];
ftype tstart;
tstart = fn(s->compute)(start_cache + ch * start_window_nb_samples,
tstart = fn(s->compute)(start_cache + ch * cache_size,
start_sample,
start_ow,
window_size,
@ -423,8 +424,9 @@ static void fn(filter_stop)(AVFilterContext *ctx,
const int stop_duration = s->stop_duration;
ftype *stop_cache = (ftype *)s->stop_cache;
const int stop_silence = s->stop_silence;
const int restart = s->restart;
int window_size = stop_window_nb_samples;
const int cache_size = s->cache_size;
const int restart = s->restart;
int *front = s->stop_front;
int *back = s->stop_back;
@ -446,7 +448,7 @@ static void fn(filter_stop)(AVFilterContext *ctx,
ftype stop_ow = stopw[stop_wpos + ch];
ftype tstop;
tstop = fn(s->compute)(stop_cache + ch * stop_window_nb_samples,
tstop = fn(s->compute)(stop_cache + ch * cache_size,
stop_sample,
stop_ow,
window_size,