52 lines
1.1 KiB
Rust
52 lines
1.1 KiB
Rust
use std::mem;
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/// Format that each sample has.
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#[derive(Clone, Copy, Debug, PartialEq, Eq)]
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pub enum SampleFormat {
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/// The value 0 corresponds to 0.
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I16,
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/// The value 0 corresponds to 32768.
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U16,
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/// The boundaries are (-1.0, 1.0).
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F32,
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}
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impl SampleFormat {
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/// Returns the size in bytes of a sample of this format.
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#[inline]
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pub fn get_sample_size(&self) -> usize {
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match self {
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&SampleFormat::I16 => mem::size_of::<i16>(),
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&SampleFormat::U16 => mem::size_of::<u16>(),
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&SampleFormat::F32 => mem::size_of::<f32>(),
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}
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}
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}
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/// Trait for containers that contain PCM data.
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pub unsafe trait Sample: Copy + Clone {
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/// Returns the `SampleFormat` corresponding to this data type.
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fn get_format() -> SampleFormat;
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}
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unsafe impl Sample for u16 {
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#[inline]
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fn get_format() -> SampleFormat {
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SampleFormat::U16
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}
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}
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unsafe impl Sample for i16 {
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#[inline]
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fn get_format() -> SampleFormat {
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SampleFormat::I16
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}
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}
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unsafe impl Sample for f32 {
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#[inline]
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fn get_format() -> SampleFormat {
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SampleFormat::F32
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}
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}
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