decoder_format_t Struct Reference

PCM format of the open stream, read once after decoder_open(). More...

#include <decoder.h>

Data Fields
uint32_t	rate_hz
uint8_t	channels
uint8_t	bits
uint32_t	duration_ms

Detailed Description

PCM format of the open stream, read once after decoder_open().

Field Documentation

bits

uint8_t decoder_format_t::bits

Source bits per sample: 16 (MP3, 16-bit WAV) or 24 (24-bit WAV). Output samples are always 32-bit MSB-justified words.

channels

uint8_t decoder_format_t::channels

Always 2: mono sources are up-mixed to stereo.

duration_ms

uint32_t decoder_format_t::duration_ms

Track length in ms; 0 if unknown (e.g. headerless VBR MP3).

rate_hz

uint32_t decoder_format_t::rate_hz

Sample rate in Hz (e.g. 44100, up to 192000 for WAV).

---

The documentation for this struct was generated from the following file:

• components/services/audio/decoder.h