[FFmpeg-devel] [PATCH] swresample/resample: use uniform normalization

[Muhammad Faiz]

On Fri, Mar 3, 2017 at 3:58 PM, Muhammad Faiz <mfcc64 at gmail.com> wrote:
> On Wed, Mar 1, 2017 at 10:24 PM, Muhammad Faiz <mfcc64 at gmail.com> wrote:
>> this gives better frequency response
>>
>> update swresample fate and other fates
>> that depend on resampling
>>
>> Signed-off-by: Muhammad Faiz <mfcc64 at gmail.com>
>> ---
>>  libswresample/resample.c     |  14 +--
>>  tests/fate/libswresample.mak | 276 +++++++++++++++++++++----------------------
>>  tests/ref/acodec/roqaudio    |   2 +-
>>  tests/ref/acodec/s302m       |   6 +-
>>  tests/ref/lavf/dv_fmt        |   8 +-
>>  tests/ref/lavf/gxf           |   8 +-
>>  tests/ref/lavf/mxf           |  12 +-
>>  7 files changed, 163 insertions(+), 163 deletions(-)
>>
>
> Test case, from 44100 to 705600 (16*44100)
> ffmpeg -filter_complex "aevalsrc='if(n-300,0,1)',
> aresample=osr=705600:filter_size=16" -f f32le - | ./freq-resp >
> freq-resp.txt
>
>
> gnuplot result attached

ping