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| author | Paul B Mahol <onemda@gmail.com> | 2023-05-27 11:13:48 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2023-05-27 11:18:02 +0200 |
| commit | 8d662adcc9a28da7a9422bff8be68881692ca6bd (patch) | |
| tree | e58cc1a3fdd1e367aefdd7ccf70c6f61525349dc /libavfilter | |
| parent | 965f99f904a433c341c04ac992d5ab8f08f0aae2 (diff) | |
| download | ffmpeg-8d662adcc9a28da7a9422bff8be68881692ca6bd.tar.gz | |
avfilter/af_silenceremove: speed-up filtering once start-trim is over
No point to call filter_start on samples that will pass them unchanged
once initial trimming stopped.
Diffstat (limited to 'libavfilter')
| -rw-r--r-- | libavfilter/af_silenceremove.c | 36 |
1 files changed, 22 insertions, 14 deletions
diff --git a/libavfilter/af_silenceremove.c b/libavfilter/af_silenceremove.c index 865df4d13a..8398eeadb2 100644 --- a/libavfilter/af_silenceremove.c +++ b/libavfilter/af_silenceremove.c @@ -294,15 +294,19 @@ static int filter_frame(AVFilterLink *outlink, AVFrame *in) srcf = (const float *)in->data[0]; dstf = (float *)out->data[0]; if (s->start_periods > 0 && s->stop_periods > 0) { - for (int n = 0; n < in_nb_samples; n++) { - filter_start_flt(ctx, srcf + n * nb_channels, - dstf, &out_nb_samples, - nb_channels); + const float *src = srcf; + if (s->start_found_periods >= 0) { + for (int n = 0; n < in_nb_samples; n++) { + filter_start_flt(ctx, src + n * nb_channels, + dstf, &out_nb_samples, + nb_channels); + } + in_nb_samples = out_nb_samples; + out_nb_samples = 0; + src = dstf; } - in_nb_samples = out_nb_samples; - out_nb_samples = 0; for (int n = 0; n < in_nb_samples; n++) { - filter_stop_flt(ctx, dstf + n * nb_channels, + filter_stop_flt(ctx, src + n * nb_channels, dstf, &out_nb_samples, nb_channels); } @@ -324,15 +328,19 @@ static int filter_frame(AVFilterLink *outlink, AVFrame *in) srcd = (const double *)in->data[0]; dstd = (double *)out->data[0]; if (s->start_periods > 0 && s->stop_periods > 0) { - for (int n = 0; n < in_nb_samples; n++) { - filter_start_dbl(ctx, srcd + n * nb_channels, - dstd, &out_nb_samples, - nb_channels); + const double *src = srcd; + if (s->start_found_periods >= 0) { + for (int n = 0; n < in_nb_samples; n++) { + filter_start_dbl(ctx, src + n * nb_channels, + dstd, &out_nb_samples, + nb_channels); + } + in_nb_samples = out_nb_samples; + out_nb_samples = 0; + src = dstd; } - in_nb_samples = out_nb_samples; - out_nb_samples = 0; for (int n = 0; n < in_nb_samples; n++) { - filter_stop_dbl(ctx, dstd + n * nb_channels, + filter_stop_dbl(ctx, src + n * nb_channels, dstd, &out_nb_samples, nb_channels); } |