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| author | Alexander Strasser <eclipse7@gmx.net> | 2012-12-25 23:14:09 +0100 |
|---|---|---|
| committer | Alexander Strasser <eclipse7@gmx.net> | 2013-01-04 16:47:57 +0100 |
| commit | ac25b31ede03ef4f89175cb3c293ff6b5609e6c2 (patch) | |
| tree | f6e60c471b2dcee274deecf1b6384bed9d87428e /libswresample/swresample.c | |
| parent | a08194b4c51ebc7024f50eed0f09aa74058e15bb (diff) | |
| download | ffmpeg-ac25b31ede03ef4f89175cb3c293ff6b5609e6c2.tar.gz | |
lswr: Improve default resampler's default parameters
After making some blind tests on a small collection of music
samples for home usage. It turned out that the default cutoff
was too low.
The impact of filter_size was not clearly distinguishable (the
results were on the edge) with the music samples but turned out
to be clearly audible in some synthetic samples.
Thanks to Daniel for helping out with the listening tests.
Signed-off-by: Alexander Strasser <eclipse7@gmx.net>
Diffstat (limited to 'libswresample/swresample.c')
| -rw-r--r-- | libswresample/swresample.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libswresample/swresample.c b/libswresample/swresample.c index 2477847388..f01927f293 100644 --- a/libswresample/swresample.c +++ b/libswresample/swresample.c @@ -80,7 +80,7 @@ static const AVOption options[]={ {"triangular" , "select triangular dither" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR }, INT_MIN, INT_MAX , PARAM, "dither_method"}, {"triangular_hp" , "select triangular dither with high pass" , 0 , AV_OPT_TYPE_CONST, {.i64=SWR_DITHER_TRIANGULAR_HIGHPASS }, INT_MIN, INT_MAX, PARAM, "dither_method"}, -{"filter_size" , "set swr resampling filter size", OFFSET(filter_size) , AV_OPT_TYPE_INT , {.i64=16 }, 0 , INT_MAX , PARAM }, +{"filter_size" , "set swr resampling filter size", OFFSET(filter_size) , AV_OPT_TYPE_INT , {.i64=32 }, 0 , INT_MAX , PARAM }, {"phase_shift" , "set swr resampling phase shift", OFFSET(phase_shift) , AV_OPT_TYPE_INT , {.i64=10 }, 0 , 30 , PARAM }, {"linear_interp" , "enable linear interpolation" , OFFSET(linear_interp) , AV_OPT_TYPE_INT , {.i64=0 }, 0 , 1 , PARAM }, {"cutoff" , "set cutoff frequency ratio" , OFFSET(cutoff) , AV_OPT_TYPE_DOUBLE,{.dbl=0. }, 0 , 1 , PARAM }, |