rescale_core/wav/
header.rs

1//! Definisi struktur data RIFF WAVE header.
2
3#[derive(Debug, Clone, Copy, PartialEq, Eq)]
4pub enum WavSampleFormat {
5    Pcm16Bit,
6    Pcm24Bit,
7    Pcm32BitFloat,
8}
9
10#[derive(Debug, Clone, PartialEq)]
11pub struct WavHeader {
12    pub num_channels: u16,
13    pub sample_rate: u32,
14    pub format: WavSampleFormat,
15    pub num_samples_per_channel: usize,
16}
17
18impl WavHeader {
19    pub fn new(
20        num_channels: u16,
21        sample_rate: u32,
22        format: WavSampleFormat,
23        num_samples_per_channel: usize,
24    ) -> Self {
25        Self {
26            num_channels,
27            sample_rate,
28            format,
29            num_samples_per_channel,
30        }
31    }
32
33    pub fn bits_per_sample(&self) -> u16 {
34        match self.format {
35            WavSampleFormat::Pcm16Bit => 16,
36            WavSampleFormat::Pcm24Bit => 24,
37            WavSampleFormat::Pcm32BitFloat => 32,
38        }
39    }
40
41    pub fn audio_format_tag(&self) -> u16 {
42        match self.format {
43            WavSampleFormat::Pcm16Bit | WavSampleFormat::Pcm24Bit => 1, // WAVE_FORMAT_PCM
44            WavSampleFormat::Pcm32BitFloat => 3,                        // WAVE_FORMAT_IEEE_FLOAT
45        }
46    }
47}
rescale_core/wav/header.rs

rescale_core/wav/
header.rs
