Crate adts_reader

A Rust parser for the Audio Data Transport Stream framing format often used to carry encoded AAC audio data.

AdtsHeader is the primary type provided by this crate.

Given a buffer containing some number of ADTS frames, the first frame may be inspected by constructing a header instance with,

use adts_reader::AdtsHeader;
// let buf = ...;
match AdtsHeader::from_bytes(&buf) {
    Ok(header) => println!("length (headers+payload) is {}", header.frame_length()),
    Err(e) => panic!("failed to read header: {:?}", e),
}

Unsupported

• Resynchronising AdtsParser after encountering bitstream error (we could search for sync-word)
• Copyright identifiers (I don’t have any example bitstreams to try)
• CRC handling (probably needs to be implemented as part of AAC bitstream parsing)

Structs

AdtsHeader

Extract information for a single ADTS frame from the start of the given byte buffer .

AdtsParser

Find ADTS frames within provided buffers of data, announcing audio configuration as it is discovered (normally just once at the start, but possibly changing during the stream if the stream is malformed).

CopyrightIdentification

PayloadError

Error indicating that not enough data was provided to AdtsHeader to be able to extract the whole ADTS payload following the header fields.

Enums

AdtsHeaderError

AdtsParseError

AudioObjectType

ChannelConfiguration

CopyrightIdErr

CopyrightIdentificationStart

MpegVersion

Originality

ProtectionIndicator

SamplingFrequency

Traits

AdtsConsumer

Trait to be implemented by types that wish to consume the ADTS data produced by AdtsParser.