path: root/audio_codec/libamr/sp_dec.h (plain)
blob: 3739018e5fca241993a0e0c372e96a5a31640b10

1	/*
2	* ===================================================================
3	* TS 26.104
4	* R99 V3.5.0 2003-03
5	* REL-4 V4.4.0 2003-03
6	* REL-5 V5.1.0 2003-03
7	* 3GPP AMR Floating-point Speech Codec
8	* ===================================================================
9	*
10	*/
11
12	/*
13	* sp_enc.h
14	*
15	*
16	* Project:
17	* AMR Floating-Point Codec
18	*
19	* Contains:
20	* Defines interface to AMR encoder
21	*
22	*/
23	#ifndef _SP_DEC_H_
24	#define _SP_DEC_H_
25
26	/*
27	* definition of enumerated types
28	*/
29
30	/*
31	* definition of modes for decoder
32	*/
33	enum Mode { MR475 = 0,
34	MR515,
35	MR59,
36	MR67,
37	MR74,
38	MR795,
39	MR102,
40	MR122,
41	MRDTX,
42	N_MODES /* number of (SPC) modes */
43	};
44
45	/* Declaration recieved frame types */
46	enum RXFrameType { RX_SPEECH_GOOD = 0,
47	RX_SPEECH_DEGRADED,
48	RX_ONSET,
49	RX_SPEECH_BAD,
50	RX_SID_FIRST,
51	RX_SID_UPDATE,
52	RX_SID_BAD,
53	RX_NO_DATA,
54	RX_N_FRAMETYPES /* number of frame types */
55	};
56
57	/*
58	* Function prototypes
59	*/
60
61	/*
62	* initialize one instance of the speech decoder
63	*/
64	void* Speech_Decode_Frame_init();
65
66	/*
67	* free status struct
68	*/
69	void Speech_Decode_Frame_exit(void **st);
70
71	/*
72	* Decodes one frame from encoded parameters
73	*/
74	void Speech_Decode_Frame(void *st, enum Mode mode, short *serial,
75	enum RXFrameType frame_type, short *synth);
76
77	/*
78	* reset speech decoder
79	*/
80	int Speech_Decode_Frame_reset(void **st);
81
82	#endif
83
84