AudioG722::g722_encode_state Struct Reference

Public Member Functions
	g722_encode_state ()
void	init (int rate, int options)

Public Attributes
int	itu_test_mode
int	packed
int	eight_k
int	bits_per_sample
int	x [24]
struct {
int   s
int   sp
int   sz
int   r [3]
int   a [3]
int   ap [3]
int   p [3]
int   d [7]
int   b [7]
int   bp [7]
int   sg [7]
int   nb
int   det
}	band [2]
unsigned int	in_buffer
int	in_bits
unsigned int	out_buffer
int	out_bits

Detailed Description

Definition at line 34 of file audiog722.h.

Constructor & Destructor Documentation

g722_encode_state()

AudioG722::g722_encode_state::g722_encode_state

(

)

Definition at line 83 of file audiog722.cpp.

References init().

{
    init(64000, 0);
}

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Member Function Documentation

init()

void AudioG722::g722_encode_state::init	(	int	rate,
		int	options
	)

Definition at line 88 of file audiog722.cpp.

References band, bits_per_sample, eight_k, G722_PACKED, G722_SAMPLE_RATE_8000, in_bits, in_buffer, itu_test_mode, out_bits, out_buffer, packed, and x.

Referenced by g722_encode_state(), and AudioG722::init().

{
    itu_test_mode = 0;
    std::fill(x, x+24, 0);
    in_buffer = 0;
    in_bits = 0;
    out_buffer = 0;
    out_bits = 0;

    char *pBand = (char *) band;
    std::fill(pBand, pBand + sizeof(band), 0);

    if (rate == 48000) {
        bits_per_sample = 6;
    } else if (rate == 56000) {
        bits_per_sample = 7;
    } else {
        bits_per_sample = 8;
    }


    if ((options & G722_SAMPLE_RATE_8000)) {
        eight_k = 1;
    } else {
        eight_k = 0;
    }

    if ((options & G722_PACKED)  &&  bits_per_sample != 8) {
        packed = 1;
    } else {
        packed = 0;
    }

    band[0].det = 32;
    band[1].det = 8;
}

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Member Data Documentation

a

int AudioG722::g722_encode_state::a[3]

Definition at line 55 of file audiog722.h.

Referenced by AudioG722::block4().

ap

int AudioG722::g722_encode_state::ap[3]

Definition at line 56 of file audiog722.h.

Referenced by AudioG722::block4().

b

int AudioG722::g722_encode_state::b[7]

Definition at line 59 of file audiog722.h.

Referenced by AudioG722::block4().

band

struct { ... } AudioG722::g722_encode_state::band[2]

Referenced by AudioG722::block4(), AudioG722::encode(), and init().

bits_per_sample

int AudioG722::g722_encode_state::bits_per_sample

6 for 48000kbps, 7 for 56000kbps, or 8 for 64000kbps.

Definition at line 44 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

bp

int AudioG722::g722_encode_state::bp[7]

Definition at line 60 of file audiog722.h.

Referenced by AudioG722::block4().

d

int AudioG722::g722_encode_state::d[7]

Definition at line 58 of file audiog722.h.

Referenced by AudioG722::block4().

det

int AudioG722::g722_encode_state::det

Definition at line 63 of file audiog722.h.

Referenced by AudioG722::encode().

eight_k

int AudioG722::g722_encode_state::eight_k

TRUE if encode from 8k samples/second

Definition at line 42 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

in_bits

int AudioG722::g722_encode_state::in_bits

Definition at line 67 of file audiog722.h.

Referenced by init().

in_buffer

unsigned int AudioG722::g722_encode_state::in_buffer

Definition at line 66 of file audiog722.h.

Referenced by init().

itu_test_mode

int AudioG722::g722_encode_state::itu_test_mode

TRUE if the operating in the special ITU test mode, with the band split filters disabled.

Definition at line 38 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

nb

int AudioG722::g722_encode_state::nb

Definition at line 62 of file audiog722.h.

Referenced by AudioG722::encode().

out_bits

int AudioG722::g722_encode_state::out_bits

Definition at line 69 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

out_buffer

unsigned int AudioG722::g722_encode_state::out_buffer

Definition at line 68 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

p

int AudioG722::g722_encode_state::p[3]

Definition at line 57 of file audiog722.h.

Referenced by AudioG722::block4().

packed

int AudioG722::g722_encode_state::packed

TRUE if the G.722 data is packed

Definition at line 40 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

r

int AudioG722::g722_encode_state::r[3]

Definition at line 54 of file audiog722.h.

Referenced by AudioG722::block4().

s

int AudioG722::g722_encode_state::s

Definition at line 51 of file audiog722.h.

Referenced by AudioG722::block4(), and AudioG722::encode().

sg

int AudioG722::g722_encode_state::sg[7]

Definition at line 61 of file audiog722.h.

Referenced by AudioG722::block4().

sp

int AudioG722::g722_encode_state::sp

Definition at line 52 of file audiog722.h.

Referenced by AudioG722::block4().

sz

int AudioG722::g722_encode_state::sz

Definition at line 53 of file audiog722.h.

Referenced by AudioG722::block4().

x

int AudioG722::g722_encode_state::x[24]

Signal history for the QMF

Definition at line 47 of file audiog722.h.

Referenced by AudioG722::encode(), and init().

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

• sdrbase/audio/audiog722.h
• sdrbase/audio/audiog722.cpp