mp3lame-encoder 0.2.2

High level bindings to mp3lame encoder
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52

# mp3lame-encoder

![Rust](https://github.com/DoumanAsh/mp3lame-encoder/workflows/Rust/badge.svg?branch=master)
[![Crates.io](https://img.shields.io/crates/v/mp3lame-encoder.svg)](https://crates.io/crates/mp3lame-encoder)
[![Documentation](https://docs.rs/mp3lame-encoder/badge.svg)](https://docs.rs/crate/mp3lame-encoder/)

High level wrapper over [mp3lame-sys](https://crates.io/crates/mp3lame-sys)

## Example

```rust
use mp3lame_encoder::{Builder, Id3Tag, DualPcm, FlushNoGap};

let mut mp3_encoder = Builder::new().expect("Create LAME builder");
mp3_encoder.set_num_channels(2).expect("set channels");
mp3_encoder.set_sample_rate(44_100).expect("set sample rate");
mp3_encoder.set_brate(mp3lame_encoder::Bitrate::Kbps192).expect("set brate");
mp3_encoder.set_quality(mp3lame_encoder::Quality::Best).expect("set quality");
mp3_encoder.set_id3_tag(Id3Tag {
    title: b"My title",
    artist: &[],
    album: b"My album",
    year: b"Current year",
    comment: b"Just my comment",
});
let mut mp3_encoder = mp3_encoder.build().expect("To initialize LAME encoder");

//use actual PCM data
let input = DualPcm {
    left: &[0u16, 0],
    right: &[0u16, 0],
};

let mut mp3_out_buffer = Vec::new();
mp3_out_buffer.reserve(mp3lame_encoder::max_required_buffer_size(input.left.len()));
let encoded_size = mp3_encoder.encode(input, mp3_out_buffer.spare_capacity_mut()).expect("To encode");
unsafe {
    mp3_out_buffer.set_len(mp3_out_buffer.len().wrapping_add(encoded_size));
}

let encoded_size = mp3_encoder.flush::<FlushNoGap>(mp3_out_buffer.spare_capacity_mut()).expect("to flush");
unsafe {
    mp3_out_buffer.set_len(mp3_out_buffer.len().wrapping_add(encoded_size));
}
//At this point your mp3_out_buffer should have full MP3 data, ready to be written on file system or whatever

```

## License

LAME library is under LGPL License.
Hence this crate is licensed under the same shitty license