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static CAEChannelInfo | GuessChLayout (const unsigned int channels) |
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static const char * | GetStdChLayoutName (const enum AEStdChLayout layout) |
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static unsigned int | DataFormatToBits (const enum AEDataFormat dataFormat) |
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static unsigned int | DataFormatToUsedBits (const enum AEDataFormat dataFormat) |
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static unsigned int | DataFormatToDitherBits (const enum AEDataFormat dataFormat) |
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static const char * | DataFormatToStr (const enum AEDataFormat dataFormat) |
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static const char * | StreamTypeToStr (const enum CAEStreamInfo::DataType dataType) |
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| static float | PercentToGain (const float value) |
| | convert a volume percentage (as a proportion) to a dB gain We assume a dB range of 60dB, i.e. assume that 0% volume corresponds to a reduction of 60dB. More...
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| static float | GainToPercent (const float gain) |
| | convert a dB gain to volume percentage (as a proportion) We assume a dB range of 60dB, i.e. assume that 0% volume corresponds to a reduction of 60dB. More...
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| static float | GainToScale (const float dB) |
| | convert a dB gain to a scale factor for audio manipulation Inverts gain = 20 log_10(scale) More...
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| static float | ScaleToGain (const float scale) |
| | convert a scale factor to dB gain for audio manipulation Inverts GainToScale result More...
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static void | ClampArray (float *data, uint32_t count) |
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static bool | S16NeedsByteSwap (AEDataFormat in, AEDataFormat out) |
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static uint64_t | GetAVChannelLayout (const CAEChannelInfo &info) |
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static CAEChannelInfo | GetAEChannelLayout (uint64_t layout) |
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static AVSampleFormat | GetAVSampleFormat (AEDataFormat format) |
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static uint64_t | GetAVChannelMask (enum AEChannel aechannel) |
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static enum AVChannel | GetAVChannel (enum AEChannel aechannel) |
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static int | GetAVChannelIndex (enum AEChannel aechannel, uint64_t layout) |
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◆ GainToPercent()
| static float CAEUtil::GainToPercent |
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const float |
gain | ) |
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inlinestatic |
convert a dB gain to volume percentage (as a proportion) We assume a dB range of 60dB, i.e. assume that 0% volume corresponds to a reduction of 60dB.
- Parameters
-
| the | corresponding gain in dB from -60dB .. 0dB. |
- Returns
- value the volume from 0..1
- See also
- ScaleToGain
◆ GainToScale()
| static float CAEUtil::GainToScale |
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const float |
dB | ) |
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inlinestatic |
convert a dB gain to a scale factor for audio manipulation Inverts gain = 20 log_10(scale)
- Parameters
-
- Returns
- the scale factor (equivalent to a voltage multiplier).
- See also
- PercentToGain
◆ PercentToGain()
| static float CAEUtil::PercentToGain |
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const float |
value | ) |
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inlinestatic |
convert a volume percentage (as a proportion) to a dB gain We assume a dB range of 60dB, i.e. assume that 0% volume corresponds to a reduction of 60dB.
- Parameters
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| value | the volume from 0..1 |
- Returns
- the corresponding gain in dB from -60dB .. 0dB.
- See also
- GainToScale
◆ ScaleToGain()
| static float CAEUtil::ScaleToGain |
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const float |
scale | ) |
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inlinestatic |
convert a scale factor to dB gain for audio manipulation Inverts GainToScale result
- Parameters
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| the | scale factor (equivalent to a voltage multiplier). |
- Returns
- dB the gain in decibels.
- See also
- GainToScale
The documentation for this class was generated from the following files:
- xbmc/cores/AudioEngine/Utils/AEUtil.h
- xbmc/cores/AudioEngine/Utils/AEUtil.cpp
