wiced_bt_audio_codec.h File Reference

Defines the utilities used by the A2DP for configuring the audio codec. More...

Data Structures
struct	wiced_codec_param_sbc_t
	SBC Codec params. More...
struct	wiced_codec_param_mpx_t
	MP3/MP2/MP2_5 Codec params. More...
struct	wiced_codec_param_aac_t
	AAC Codec params. More...
struct	wiced_codec_param_pcm_t
	PCM Codec params. More...
union	wiced_codec_param_t
	Codec params. More...
struct	wiced_codec_interface_functions_t
	Codec Interface function matrix In external codec library below all function should be implemented. More...
struct	wiced_bt_a2dp_ext_codec_info_t
	External Codec information. More...
struct	wiced_audio_buffer_info_t
	Audio buffer information. More...

Macros
#define	WICED_CODEC_STATUS_SUCCESS   0
	Indicates Success.
#define	WICED_CODEC_STATUS_FAIL   1
	Indicates Failure.

Typedefs
typedef uint32_t(	wiced_codec_get_mem_size_t )(void)
	CODEC returns required memory size in byte.
typedef uint32_t(	wiced_codec_init_t )(void *memory, wiced_codec_param_t *param)
typedef uint32_t(	wiced_codec_get_frame_len_t )(uint8_t *frame)
typedef uint32_t(	wiced_codec_get_num_pcm_t )(void)
typedef uint32_t(	wiced_codec_set_bit_rate_t )(uint32_t param)
typedef uint32_t(	wiced_codec_get_bit_rate_t )(void)
typedef uint32_t(	wiced_codec_process_frame_t )(void *pIn, void *pOut, uint32_t frame_length)
typedef uint32_t(	wiced_codec_flush_t )(void)

Enumerations
enum	wiced_bt_a2dp_codec_type_t {   WICED_AUDIO_CODEC_NONE = 0, WICED_AUDIO_CODEC_SBC_ENC = 1 << 0, WICED_AUDIO_CODEC_SBC_DEC = 1 << 1, WICED_AUDIO_CODEC_MP3_ENC = 1 << 2,   WICED_AUDIO_CODEC_MP3_DEC = 1 << 3, WICED_AUDIO_CODEC_AAC_ENC = 1 << 4, WICED_AUDIO_CODEC_AAC_DEC = 1 << 5, WICED_AUDIO_CODEC_AAC_PLUS_ENC = 1 << 6,   WICED_AUDIO_CODEC_AAC_PLUS_DEC = 1 << 7, WICED_AUDIO_CODEC_MP2_ENC = 1 << 8, WICED_AUDIO_CODEC_MP2_DEC = 1 << 9, WICED_AUDIO_CODEC_MP2_5_ENC = 1 << 10,   WICED_AUDIO_CODEC_MP2_5_DEC = 1 << 11, WICED_AUDIO_CODEC_PCM_ENC = 1 << 12 }
	Codec Type. More...

Functions
void	wiced_audio_register_codec_handler (wiced_bt_a2dp_codec_type_t audio_codec, wiced_codec_interface_functions_t *p_codec_functions)
void	wiced_audio_request_buffer_info (wiced_audio_buffer_info_t *buffer_info)
void	wiced_audio_volume_ctrl (void *pIn, void *pOut, int pcm_count)
	Volume control - Ramp up/down the PCM samples during mute/un-mute. More...

Detailed Description

Defines the utilities used by the A2DP for configuring the audio codec.

Enumeration Type Documentation

enum wiced_bt_a2dp_codec_type_t

Codec Type.

Enumerator
WICED_AUDIO_CODEC_NONE	None.
WICED_AUDIO_CODEC_SBC_ENC	SBC Encode.
WICED_AUDIO_CODEC_SBC_DEC	SBC Decode.
WICED_AUDIO_CODEC_MP3_ENC	MP3 Encode.
WICED_AUDIO_CODEC_MP3_DEC	MP3 Decode.
WICED_AUDIO_CODEC_AAC_ENC	AAC Encode.
WICED_AUDIO_CODEC_AAC_DEC	AAC Decode.
WICED_AUDIO_CODEC_AAC_PLUS_ENC	AAC Plus Encode.
WICED_AUDIO_CODEC_AAC_PLUS_DEC	AAC Plus Decode.
WICED_AUDIO_CODEC_MP2_ENC	MP2 Encode.
WICED_AUDIO_CODEC_MP2_DEC	MP2 Decode.
WICED_AUDIO_CODEC_MP2_5_ENC	MP2_5 Encode.
WICED_AUDIO_CODEC_MP2_5_DEC	MP2_5 Decode.
WICED_AUDIO_CODEC_PCM_ENC	PCM Encode.

Function Documentation

void wiced_audio_volume_ctrl	(	void *	pIn,
		void *	pOut,
		int	pcm_count
	)

Volume control - Ramp up/down the PCM samples during mute/un-mute.

This API is called by the codec library after the decoding is done to allow FW to ramp the audio data when mute/un-mute is requested by the application.

Parameters

pIn	pointer to the pcm input buffer
pIn	pointer to the pcm output buffer
pcm_count	PCM input sample size

Returns

none