diff options
Diffstat (limited to 'src/pcm/PcmDither.hxx')
| -rw-r--r-- | src/pcm/PcmDither.hxx | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/src/pcm/PcmDither.hxx b/src/pcm/PcmDither.hxx index f3213a6e6..2b75cdaeb 100644 --- a/src/pcm/PcmDither.hxx +++ b/src/pcm/PcmDither.hxx @@ -22,6 +22,8 @@ #include <stdint.h> +enum class SampleFormat : uint8_t; + class PcmDither { int32_t error[3]; int32_t random; @@ -30,9 +32,6 @@ public: constexpr PcmDither() :error{0, 0, 0}, random(0) {} - template<typename T, T MIN, T MAX, unsigned scale_bits> - T Dither(T sample); - void Dither24To16(int16_t *dest, const int32_t *src, const int32_t *src_end); @@ -40,8 +39,16 @@ public: const int32_t *src_end); private: - int16_t Dither24To16(int_fast32_t sample); - int16_t Dither32To16(int_fast32_t sample); + template<typename T, T MIN, T MAX, unsigned scale_bits> + T Dither(T sample); + + template<typename ST, typename DT> + typename DT::value_type DitherShift(typename ST::value_type sample); + + template<typename ST, typename DT> + void DitherShift(typename DT::pointer_type dest, + typename ST::const_pointer_type src, + typename ST::const_pointer_type src_end); }; #endif |