Module wav 

WAV file parser (PCM only)

Parses RIFF/WAVE files and extracts PCM audio data. Supports common PCM formats (8-bit unsigned, 16-bit signed, 24-bit signed) and provides conversion utilities to normalize audio to S16Le for mixing.

Supported Formats

• PCM 8-bit unsigned (audio_format=1, bits_per_sample=8)
• PCM 16-bit signed little-endian (audio_format=1, bits_per_sample=16)
• PCM 24-bit signed little-endian (audio_format=1, bits_per_sample=24)
• PCM 32-bit signed little-endian (audio_format=1, bits_per_sample=32)

Structs

FmtChunk

Format chunk describing the audio data layout

WavFile

Parsed WAV file with metadata and data location

WavHeader

RIFF file header (12 bytes)

Functions

convert_s24_to_s16

Convert signed 24-bit little-endian PCM to signed 16-bit PCM

convert_s32_to_s16

Convert signed 32-bit little-endian PCM to signed 16-bit PCM

convert_u8_to_s16

Convert unsigned 8-bit PCM to signed 16-bit PCM