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Jamie Hardt
2023-06-02 20:37:44 -07:00
parent b8a428e757
commit aa8365a38d
1 changed files with 15 additions and 2 deletions
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17
src/common_format.rs
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@@ -1,8 +1,17 @@
/// Format tags, UUIDs and utilities
use uuid::Uuid;
/// Format tag for integer LPCM
pub const WAVE_TAG_PCM: u16 = 0x0001;
/// Format tag for float LPCM
pub const WAVE_TAG_FLOAT: u16 = 0x0003;
/// Format tag for MPEG1
pub const WAVE_TAG_MPEG: u16 = 0x0050;
/// Format tag indicating extended format
pub const WAVE_TAG_EXTENDED: u16 = 0xFFFE;
/* RC 2361 §4:
@@ -15,34 +24,38 @@ pub const WAVE_TAG_EXTENDED: u16 = 0xFFFE;
*/
/// Extended format UUID for integer PCM
pub const WAVE_UUID_PCM: Uuid = Uuid::from_bytes([
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71,
]);
/// Extended format UUID for float PCM
pub const WAVE_UUID_FLOAT: Uuid = Uuid::from_bytes([
0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71,
]);
/// Extended format UUID for MPEG1 data
pub const WAVE_UUID_MPEG: Uuid = Uuid::from_bytes([
0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71,
]);
/// Extended format for integer Ambisonic B-Format
pub const WAVE_UUID_BFORMAT_PCM: Uuid = Uuid::from_bytes([
0x01, 0x00, 0x00, 0x00, 0x21, 0x07, 0xd3, 0x11, 0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00,
]);
/// Extended format for float Ambisonic B-Format
pub const WAVE_UUID_BFORMAT_FLOAT: Uuid = Uuid::from_bytes([
0x03, 0x00, 0x00, 0x00, 0x21, 0x07, 0xd3, 0x11, 0x86, 0x44, 0xc8, 0xc1, 0xca, 0x00, 0x00, 0x00,
]);
/// Generate an extended format UUID for the given basic format tag from [WaveFmt::tag].
fn uuid_from_basic_tag(tag: u16) -> Uuid {
let tail: [u8; 6] = [0x00, 0xaa, 0x00, 0x38, 0x9b, 0x71];
Uuid::from_fields_le(tag as u32, 0x0000, 0x0010, &tail).unwrap()
}
/// Sample format of the Wave file.
///
///
#[derive(Debug, Copy, Clone, PartialEq)]
pub enum CommonFormat {
/// Integer linear PCM