lws-audio-features.h File Reference

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Data Structures
struct	lws_audio_vu_info

Typedefs
typedef struct lws_audio_vu_info	lws_audio_vu_info_t

Functions
LWS_VISIBLE LWS_EXTERN int	lws_media_audio_calc_energy (const lws_audio_vu_info_t *info, const int16_t *pcm, size_t len_samples, int *result)

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Data Structure Documentation

lws_audio_vu_info

struct lws_audio_vu_info

Definition at line 28 of file lws-audio-features.h.

Collaboration diagram for lws_audio_vu_info:

Data Fields
double	squelch_level
double	max_energy
int	sample_stride

Typedef Documentation

lws_audio_vu_info_t

typedef struct lws_audio_vu_info lws_audio_vu_info_t

Function Documentation

lws_media_audio_calc_energy()

LWS_VISIBLE LWS_EXTERN int lws_media_audio_calc_energy	(	const lws_audio_vu_info_t *	info,
		const int16_t *	pcm,
		size_t	len_samples,
		int *	result )

lws_media_audio_calc_energy() - Calculate audio energy level (0-100)

Parameters

info	pointer to lws_audio_vu_info_t containing config
pcm	pointer to signed 16-bit PCM samples
len_samples	number of samples in pcm buffer
result	pointer to integer to hold the result (0-100)

Returns 0 on success, or non-zero on error.