https://github.com/akiyukiokayasu/pacmog
PCM decoding library for embedded systems
https://github.com/akiyukiokayasu/pacmog
adpcm aiff embedded pcm rust wav
Last synced: about 1 year ago
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PCM decoding library for embedded systems
- Host: GitHub
- URL: https://github.com/akiyukiokayasu/pacmog
- Owner: AkiyukiOkayasu
- License: apache-2.0
- Created: 2022-11-02T08:13:35.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-06-08T06:07:32.000Z (about 3 years ago)
- Last Synced: 2024-04-25T20:22:15.562Z (about 2 years ago)
- Topics: adpcm, aiff, embedded, pcm, rust, wav
- Language: Rust
- Homepage:
- Size: 321 KB
- Stars: 6
- Watchers: 3
- Forks: 2
- Open Issues: 9
-
Metadata Files:
- Readme: README.md
- License: LICENSE-APACHE
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README
# pacmog
[](https://crates.io/crates/pacmog)
[](https://docs.rs/pacmog)
pacmog is a decoding library for the PCM file.
Designed for use in playing the PCM file embedded in microcontroller firmware.
Rust has an include_bytes! macro to embed the byte sequence in the program. Using it, PCM files can be embedded in firmware and used for playback.
pacmog works with no_std by default.
| Format | Status |
| :--- | :---: |
| WAV 16bit | ✅ |
| WAV 24bit | ✅ |
| WAV 32bit | ✅ |
| WAV 32bit float | ✅ |
| WAV 64bit float | ✅ |
| IMA ADPCM | ✅ |
| AIFF 16bit | ✅ |
| AIFF 24bit | ✅ |
| AIFF 32bit | ✅ |
| AIFF 32bit float | ✅ |
| AIFF 64bit float | ✅ |
## Example
```bash
cargo run --example beep
```
Read a sample WAV file.
```Rust
use pacmog::PcmReader;
let wav = include_bytes!("../tests/resources/Sine440Hz_1ch_48000Hz_16.wav");
let reader = PcmReader::new(wav);
let specs = reader.get_pcm_specs();
let num_samples = specs.num_samples;
let num_channels = specs.num_channels as u32;
println!("PCM info: {:?}", specs);
for sample in 0..num_samples {
for channel in 0..num_channels {
let sample_value = reader.read_sample(channel, sample).unwrap();
println!("{}", sample_value);
}
}
```
## Test
```bash
cargo test
```
## Benchmark
```bash
cargo criterion
```
## no_std
pacmog works with no_std by default.
No setup is needed.