audio_proc.h File Reference

This file includes defines, enums and typedefs for audio_proc. More...

#include "streamer_element.h"

Data Structures
struct	ElementAudioProc
	VIT sink element's data structure. More...

Macros
#define	AUDIO_CHUNK_SIZE(pstaudio_packet)   ((pstaudio_packet)->chunk_size)
	Get audio chunk size.
#define	AUDIO_SAMPLE_RATE(pstaudio_packet)   ((pstaudio_packet)->sample_rate)
	Get audio sample rate.
#define	AUDIO_NUM_CHANNELS(pstaudio_packet)   ((pstaudio_packet)->num_channels)
	Get audio number of channels.

Typedefs
typedef int(*	AudioProcInitFunc) (void *)
	audio sink initialize function proto type
typedef int(*	AudioProcPostProcFunc) (void *, void *, int)
	audio sink post process function proto type
typedef int(*	AudioProcDeinitFunc) (void)
	audio sink deinitialize function proto type

Functions
int32_t	audio_proc_set_buffer (ElementHandle element_hdl, char *location_ptr, uint32_t size)
	Set the location of the memory buffer to write to as well as the size. More...
int32_t	audio_proc_init_element (StreamElement *element_ptr)
	This function initializes the audio_proc element and pads. More...
int32_t	audio_proc_register_ext_processing (ElementHandle element, AudioProcInitFunc init_func_ptr, AudioProcPostProcFunc proc_func_ptr, AudioProcDeinitFunc deinit_func_ptr, void *arg_ptr)
	Register function pointers and arguments. More...

Function Documentation

audio_proc_set_buffer()

int32_t audio_proc_set_buffer	(	ElementHandle	element_hdl,
		char *	location_ptr,
		uint32_t	size
	)

Parameters

element_hdl	element handle
location_ptr	location path
size	buffer size

Returns

StreamReturnType

Return values

STREAM_OK	success
STREAM_ERR_INVALID_ARGS	invalid parameters
STREAM_ERR_GENERAL	status is bigger than or eque to STATE_PAUSED

audio_proc_init_element()

int32_t audio_proc_init_element

(

StreamElement *

element_ptr

)

Parameters

element_ptr

pointer of audio_proc element instance

Returns

StreamReturnType

Return values

STREAM_OK	success
STREAM_ERR_ELEMENT_NOT_FOUND	invalid instance pointer of element_ptr

audio_proc_register_ext_processing()

int32_t audio_proc_register_ext_processing	(	ElementHandle	element,
		AudioProcInitFunc	init_func_ptr,
		AudioProcPostProcFunc	proc_func_ptr,
		AudioProcDeinitFunc	deinit_func_ptr,
		void *	arg_ptr
	)

Parameters

element	audio_proc element handle
init_func_ptr	initialization function pointer
proc_func_ptr	processing function pointer
deinit_func_ptr	deinit function pointer
arg_ptr	arguments pointer

Returns

STREAM_OK

STREAM_ERR_INVALID_ARGS