AAC Viewer

A command-line tool for viewing AAC (Advanced Audio Coding) file structures. This tool can parse and display ADTS (Audio Data Transport Stream) header information and raw data from AAC files.

Features

• Parse and display ADTS header information
• Support viewing multiple data blocks
• Optional display of raw hexadecimal data
• Colored output for better readability

Installation

Ensure you have the Rust toolchain installed on your system, then clone this repository and build:

git clone <repository-url>
cd aac-viewer
cargo build --release

Usage

Basic usage:

./target/release/aac-viewer -f <aac-file>

Parameters:

• -f, --file <FILE>: AAC file path (required)
• -b, --blocks <NUMBER>: Number of data blocks to display (default: 1, show all if 0)
• -x, --hex: Display raw hexadecimal data

Examples:

# View the first data block of the file
./target/release/aac-viewer -f audio.aac

# View the first 3 data blocks
./target/release/aac-viewer -f audio.aac -b 3

# View data blocks with hexadecimal data
./target/release/aac-viewer -f audio.aac -x

Output Description

The tool displays the following ADTS header information:

• Sync Word
• MPEG Version
• Layer
• Protection Bit
• Profile
• Sampling Frequency
• Channel Configuration
• Frame Length
• Buffer Fullness
• Number of Raw Data Blocks

If the -x option is used, the raw hexadecimal data of the frame will also be displayed.