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| author | Rob Sykes <robs@users.sourceforge.net> | 2012-12-27 12:07:15 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2012-12-27 12:13:17 +0100 |
| commit | 8d9a50331322a93cdb4fc029825e5be1ffaef130 (patch) | |
| tree | 1964f5f3ebf99d5ac914958f892aa05fce6f5d69 /libswresample/swresample_internal.h | |
| parent | 03d38ee207522d8f107465cfa96601a7c77d4e82 (diff) | |
| download | ffmpeg-8d9a50331322a93cdb4fc029825e5be1ffaef130.tar.gz | |
docs: add soxr documentation
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libswresample/swresample_internal.h')
| -rw-r--r-- | libswresample/swresample_internal.h | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/libswresample/swresample_internal.h b/libswresample/swresample_internal.h index d471517d9e..70a361ba9e 100644 --- a/libswresample/swresample_internal.h +++ b/libswresample/swresample_internal.h @@ -74,17 +74,17 @@ struct SwrContext { int filter_size; /**< length of each FIR filter in the resampling filterbank relative to the cutoff frequency */ int phase_shift; /**< log2 of the number of entries in the resampling polyphase filterbank */ int linear_interp; /**< if 1 then the resampling FIR filter will be linearly interpolated */ - double cutoff; /**< resampling cutoff frequency. 1.0 corresponds to half the output sample rate */ - enum SwrFilterType filter_type; /**< resampling filter type */ - int kaiser_beta; /**< beta value for Kaiser window (only applicable if filter_type == AV_FILTER_TYPE_KAISER) */ - double precision; /**< resampling precision (in bits) */ - int cheby; /**< if 1 then the resampling FIR filter will be configured for maximal passband flatness */ - - float min_compensation; ///< minimum below which no compensation will happen - float min_hard_compensation; ///< minimum below which no silence inject / sample drop will happen - float soft_compensation_duration; ///< duration over which soft compensation is applied - float max_soft_compensation; ///< maximum soft compensation in seconds over soft_compensation_duration - float async; ///< simple 1 parameter async, similar to ffmpegs -async + double cutoff; /**< resampling cutoff frequency (swr: 6dB point; soxr: 0dB point). 1.0 corresponds to half the output sample rate */ + enum SwrFilterType filter_type; /**< swr resampling filter type */ + int kaiser_beta; /**< swr beta value for Kaiser window (only applicable if filter_type == AV_FILTER_TYPE_KAISER) */ + double precision; /**< soxr resampling precision (in bits) */ + int cheby; /**< soxr: if 1 then passband rolloff will be none (Chebyshev) & irrational ratio approximation precision will be higher */ + + float min_compensation; ///< swr minimum below which no compensation will happen + float min_hard_compensation; ///< swr minimum below which no silence inject / sample drop will happen + float soft_compensation_duration; ///< swr duration over which soft compensation is applied + float max_soft_compensation; ///< swr maximum soft compensation in seconds over soft_compensation_duration + float async; ///< swr simple 1 parameter async, similar to ffmpegs -async int resample_first; ///< 1 if resampling must come first, 0 if rematrixing int rematrix; ///< flag to indicate if rematrixing is needed (basically if input and output layouts mismatch) |