embedded_audio_driver/
decoder.rs

1use crate::Result;
2use crate::stream::AudioFormat;
3
4/// Decoder information and capabilities
5#[derive(Debug, Clone)]
6pub struct DecoderInfo {
7    /// List of supported input formats (e.g., "MP3", "WAV")
8    pub supported_formats: &'static [&'static str],
9    /// Output audio format specification
10    pub output_format: AudioFormat,
11}
12
13/// Decoder runtime state
14#[derive(Debug, Clone, Copy)]
15pub struct DecoderState {
16    /// Total number of samples in the stream
17    pub total_samples: u64,
18    /// Number of samples decoded so far
19    pub decoded_samples: u64,
20    /// Current bitrate in bits per second
21    pub current_bitrate: u32,
22}
23
24/// Audio decoder interface
25/// 
26/// This trait defines the operations for audio decoders,
27/// supporting initialization, decoding, and state management.
28pub trait Decoder {
29    /// Initialize the decoder
30    fn init(&mut self) -> Result<()>;
31    
32    /// Decode a block of input data
33    /// Returns the number of bytes written to output
34    fn decode(&mut self, input: &[u8], output: &mut [u8]) -> Result<usize>;
35    
36    /// Get decoder capabilities and information
37    fn get_info(&self) -> DecoderInfo;
38    
39    /// Get current decoder state
40    fn get_state(&self) -> Result<DecoderState>;
41    
42    /// Reset decoder to initial state
43    fn reset(&mut self) -> Result<()>;
44}
embedded_audio_driver/decoder.rs

embedded_audio_driver/
decoder.rs
