swr: add a lowpass default so that each Resampler can have its own default.

Signed-off-by: Michael Niedermayer <[email protected]>

1 files changed, 2 insertions, 1 deletions

diff --git a/libswresample/resample.c b/libswresample/resample.c
index 9599421cc3..7256fcf41a 100644
--- a/libswresample/resample.c
+++ b/libswresample/resample.c
@@ -196,7 +196,8 @@ static int build_filter(ResampleContext *c, void *filter, double factor, int tap
 }
 
 static ResampleContext *resample_init(ResampleContext *c, int out_rate, int in_rate, int filter_size, int phase_shift, int linear,
-                                    double cutoff, enum AVSampleFormat format, enum SwrFilterType filter_type, int kaiser_beta){
+                                    double cutoff0, enum AVSampleFormat format, enum SwrFilterType filter_type, int kaiser_beta){
+    double cutoff = cutoff0? cutoff0 : 0.8;
     double factor= FFMIN(out_rate * cutoff / in_rate, 1.0);
     int phase_count= 1<<phase_shift;