On Thu, Mar 9, 2017 at 7:33 AM, Michael Niedermayer <mich...@niedermayer.cc> wrote: > On Thu, Mar 09, 2017 at 02:16:10AM +0700, Muhammad Faiz wrote: >> On Thu, Mar 9, 2017 at 1:32 AM, Michael Niedermayer >> <mich...@niedermayer.cc> wrote: >> > On Wed, Mar 08, 2017 at 10:25:42PM +0700, Muhammad Faiz wrote: >> >> except filter_length == 1 >> >> >> >> odd filter_length gives worse frequency response, >> >> even when compared with shorter filter_length >> >> >> >> also makes build_filter simpler >> >> >> >> Signed-off-by: Muhammad Faiz <mfc...@gmail.com> >> >> --- >> >> libswresample/resample.c | 56 +++++++++++--------------------- >> >> tests/fate/libswresample.mak | 76 >> >> ++++++++++++++++++++++---------------------- >> >> 2 files changed, 56 insertions(+), 76 deletions(-) >> > >> > why does this change the checksums ? >> > >> > did they use odd filter lengths ? >> >> Of course, filter_length is not necessarily equal with filter_size. >> for example 8000 -> 2626, filter_length = ceil(32/0.97*8000/2626) = 101 > > right > favoring even is of course ok > > thanks
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