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Rename audio::convert to audio::pack and add audio::unpack

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This commit is contained in:
Nikita Lisitsa 2022-02-25 18:49:47 +03:00
parent 47231dfd92
commit c4ead52fd6
1 changed files with 10 additions and 1 deletions
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11
libs/audio/include/psemek/audio/sample.hpp
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@ -19,7 +19,7 @@ namespace psemek::audio
} }
// maps [-1, 1] range to samples // maps [-1, 1] range to samples
inline sample convert(float v) inline sample pack(float v)
{ {
static auto const min = static_cast<float>(std::numeric_limits<sample>::min()); static auto const min = static_cast<float>(std::numeric_limits<sample>::min());
static auto const max = static_cast<float>(std::numeric_limits<sample>::max()); static auto const max = static_cast<float>(std::numeric_limits<sample>::max());
@ -27,4 +27,13 @@ namespace psemek::audio
return clamp(min + (v * 0.5f + 0.5f) * (max - min)); return clamp(min + (v * 0.5f + 0.5f) * (max - min));
} }
// maps samples to [-1, 1] range
inline float unpack(sample s)
{
static auto const min = static_cast<float>(std::numeric_limits<sample>::min());
static auto const max = static_cast<float>(std::numeric_limits<sample>::max());
return 2.f * (s - min) / (max - min) - 1.f;
}
} }