Formats and Codecs

use symphonia_core::formats::{FormatReader, FormatOptions};
use symphonia_core::io::MediaSourceStream;

pub struct MyFormatReader {
    // Your state
}

impl FormatReader for MyFormatReader {
    fn try_new(source: MediaSourceStream, options: &FormatOptions) -> Result<Self> {
        // Parse format header
        // Extract tracks
        // Return reader instance
    }
    
    fn next_packet(&mut self) -> Result<Packet> {
        // Read next packet from stream
    }
    
    // Implement other required methods...
}

use symphonia_core::probe::{Descriptor, QueryDescriptor};

impl QueryDescriptor for MyFormatReader {
    fn query() -> &'static [Descriptor] {
        &[
            Descriptor {
                short_name: "myformat",
                long_name: "My Custom Format",
                extensions: &["myf"],
                mime_types: &["audio/myformat"],
                markers: &[b"MYFORMAT"],  // Format signature
                score: Self::score,
                inst: Instantiate::Format(|source, opt| {
                    Ok(Box::new(Self::try_new(source, opt)?))
                }),
            },
        ]
    }
    
    fn score(context: &[u8]) -> u8 {
        // Return confidence score 0-255
    }
}

let mut probe = Probe::default();
probe.register_all::<MyFormatReader>();

let probed = probe.format(&hint, mss, &fmt_opts, &meta_opts)?;

use symphonia_core::codecs::{Decoder, CodecParameters};
use symphonia_core::audio::AudioBufferRef;

pub struct MyDecoder {
    // Your decoder state
}

impl Decoder for MyDecoder {
    fn try_new(params: &CodecParameters, options: &DecoderOptions) -> Result<Self> {
        // Initialize decoder with parameters
    }
    
    fn decode(&mut self, packet: &Packet) -> Result<AudioBufferRef<'_>> {
        // Decode packet data to PCM samples
    }
    
    fn reset(&mut self) {
        // Reset decoder state
    }
    
    // Implement other required methods...
}

let mut registry = CodecRegistry::new();
registry.register_all::<MyDecoder>();

let decoder = registry.make(&track.codec_params, &dec_opts)?;