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swresample: set flags & description and add documentation for output_sample_bits

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Allows users to actually use such option.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
This commit is contained in:
Paul B Mahol 2013-06-04 11:56:14 +00:00
parent 495bf1b685
commit 0804171104
2 changed files with 5 additions and 1 deletions
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4
doc/resampler.texi
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@ -217,6 +217,10 @@ select Kaiser Windowed Sinc
For swr only, set Kaiser Window Beta value. Must be an integer in the For swr only, set Kaiser Window Beta value. Must be an integer in the
interval [2,16], default value is 9. interval [2,16], default value is 9.
@item output_sample_bits
For swr only, set number of used output sample bits for dithering. Must be an integer in the
interval [0,64], default value is 0, which means it's not used.
@end table @end table
@c man end RESAMPLER OPTIONS @c man end RESAMPLER OPTIONS

2
libswresample/swresample.c
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@ -127,7 +127,7 @@ static const AVOption options[]={
{ "kaiser_beta" , "set swr Kaiser Window Beta" , OFFSET(kaiser_beta) , AV_OPT_TYPE_INT , {.i64=9 }, 2 , 16 , PARAM }, { "kaiser_beta" , "set swr Kaiser Window Beta" , OFFSET(kaiser_beta) , AV_OPT_TYPE_INT , {.i64=9 }, 2 , 16 , PARAM },
{ "output_sample_bits" , "" , OFFSET(dither.output_sample_bits) , AV_OPT_TYPE_INT , {.i64=0 }, 0 , 64 , 0 }, { "output_sample_bits" , "set swr number of output sample bits", OFFSET(dither.output_sample_bits), AV_OPT_TYPE_INT , {.i64=0 }, 0 , 64 , PARAM },
{0} {0}
}; };