cc708decoder.cpp File Reference

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Enumerations
enum	kCCTypes { NTSC_CC_f1 = 0, NTSC_CC_f2 = 1, DTVCC_PACKET_DATA = 2, DTVCC_PACKET_START = 3 }
enum	C0 {   NUL = 0x00, ETX = 0x03, BS = 0x08, FF = 0x0C,   CR = 0x0D, HCR = 0x0E, EXT1 = 0x10, P16 = 0x18 }
enum	C1 {   CW0 = 0x80, CW1, CW2, CW3,   CW4, CW5, CW6, CW7,   CLW, DSW, HDW, TGW,   DLW, DLY, DLC, RST,   SPA = 0x90, SPC, SPL, SWA = 0x97,   DF0, DF1, DF2, DF3,   DF4, DF5, DF6, DF7 }
Functions
static void	parse_cc_packet (CC708Reader *cb_cbs, CaptionPacket *pkt, time_t last_seen[64])
static void	append_character (CC708Reader *cc, uint service_num, short ch)
static void	parse_cc_service_stream (CC708Reader *cc, uint service_num)
static int	handle_cc_c0_ext1_p16 (CC708Reader *cc, uint service_num, int i)
static int	handle_cc_c1 (CC708Reader *cc, uint service_num, int i)
static int	handle_cc_c2 (CC708Reader *cc, uint service_num, int i)
static int	handle_cc_c3 (CC708Reader *cc, uint service_num, int i)
static void	rightsize_buf (CC708Reader *cc, uint service_num, uint block_size)
static void	append_cc (CC708Reader *cc, uint service_num, const unsigned char *blk_buf, int block_size)
Variables
const char *	cc_types [4]
ushort	CCtableG0 [0x60]
ushort	CCtableG1 [0x60]
ushort	CCtableG2 [0x60]
ushort	CCtableG3 [0x60]

---

Enumeration Type Documentation

enum kCCTypes

Enumerator:

NTSC_CC_f1
NTSC_CC_f2
DTVCC_PACKET_DATA
DTVCC_PACKET_START

Definition at line 20 of file cc708decoder.cpp.

enum C0

Enumerator:

NUL
ETX
BS
FF
CR
HCR
EXT1
P16

Definition at line 85 of file cc708decoder.cpp.

enum C1

Enumerator:

CW0
CW1
CW2
CW3
CW4
CW5
CW6
CW7
CLW
DSW
HDW
TGW
DLW
DLY
DLC
RST
SPA
SPC
SPL
SWA
DF0
DF1
DF2
DF3
DF4
DF5
DF6
DF7

Definition at line 97 of file cc708decoder.cpp.

---

Function Documentation

static void parse_cc_packet	(	CC708Reader *	cb_cbs,
		CaptionPacket *	pkt,
		time_t	last_seen[64]
	)			[static]

Definition at line 605 of file cc708decoder.cpp.

Referenced by CC708Decoder::decode_cc_data(), and CC708Decoder::decode_cc_null().

static void append_character	(	CC708Reader *	cc,
		uint	service_num,
		short	ch
	)			[static]

Definition at line 691 of file cc708decoder.cpp.

Referenced by handle_cc_c0_ext1_p16(), and parse_cc_service_stream().

static void parse_cc_service_stream	(	CC708Reader *	cc,
		uint	service_num
	)			[static]

Definition at line 128 of file cc708decoder.cpp.

Referenced by append_cc().

static int handle_cc_c0_ext1_p16	(	CC708Reader *	cc,
		uint	service_num,
		int	i
	)			[static]

Definition at line 301 of file cc708decoder.cpp.

Referenced by parse_cc_service_stream().

static int handle_cc_c1	(	CC708Reader *	cc,
		uint	service_num,
		int	i
	)			[static]

Definition at line 367 of file cc708decoder.cpp.

Referenced by parse_cc_service_stream().

static int handle_cc_c2	(	CC708Reader *	cc,
		uint	service_num,
		int	i
	)			[static]

Definition at line 503 of file cc708decoder.cpp.

Referenced by handle_cc_c0_ext1_p16().

static int handle_cc_c3	(	CC708Reader *	cc,
		uint	service_num,
		int	i
	)			[static]

Definition at line 530 of file cc708decoder.cpp.

Referenced by handle_cc_c0_ext1_p16().

static void rightsize_buf	(	CC708Reader *	cc,
		uint	service_num,
		uint	block_size
	)			[static]

Definition at line 558 of file cc708decoder.cpp.

Referenced by append_cc().

static void append_cc	(	CC708Reader *	cc,
		uint	service_num,
		const unsigned char *	blk_buf,
		int	block_size
	)			[static]

Definition at line 584 of file cc708decoder.cpp.

Referenced by parse_cc_packet().

---

Variable Documentation

const char* cc_types[4]

Initial value:

{
    "NTSC line 21 field 1 closed captions"
    "NTSC line 21 field 2 closed captions"
    "DTVCC Channel Packet Data"
    "DTVCC Channel Packet Start"
}

Definition at line 28 of file cc708decoder.cpp.

ushort CCtableG0

Initial value:

{


    ' ', '!','\"', '#',    '$', '%', '&', '\'', 
    '(', ')', '*', '+',    ',', '-', '.', '/',  
    '0', '1', '2', '3',    '4', '5', '6', '7',  
    '8', '9', ':', ';',    '<', '=', '>', '?',  

    '@', 'A', 'B', 'C',    'D', 'E', 'F', 'G',  
    'H', 'I', 'J', 'K',    'L', 'M', 'N', 'O',  
    'P', 'Q', 'R', 'S',    'T', 'U', 'V', 'W',  
    'X', 'Y', 'Z', '[',    '\\',']', '^', '_',  

    '`', 'a', 'b', 'c',    'd', 'e', 'f', 'g',  
    'h', 'i', 'j', 'k',    'l', 'm', 'n', 'o',  
    'p', 'q', 'r', 's',    't', 'u', 'v', 'w',  
    'x', 'y', 'z', '{',    '|', '}', '~',  0x266a, 
}

Definition at line 717 of file cc708decoder.cpp.

Referenced by parse_cc_service_stream().

ushort CCtableG1

Definition at line 737 of file cc708decoder.cpp.

Referenced by parse_cc_service_stream().

ushort CCtableG2

Definition at line 772 of file cc708decoder.cpp.

Referenced by handle_cc_c0_ext1_p16().

ushort CCtableG3

Initial value:

{

    '#', 
       0, 0, 0,   0, 0, 0, 0,    0, 0, 0, 0,   0, 0, 0, 0, 
    0, 0, 0, 0,   0, 0, 0, 0,    0, 0, 0, 0,   0, 0, 0, 0, 

    0, 0, 0, 0,   0, 0, 0, 0,    0, 0, 0, 0,   0, 0, 0, 0, 
    0, 0, 0, 0,   0, 0, 0, 0,    0, 0, 0, 0,   0, 0, 0, 0, 

    0, 0, 0, 0,   0, 0, 0, 0,    0, 0, 0, 0,   0, 0, 0, 0, 
    0, 0, 0, 0,   0, 0, 0, 0,    0, 0, 0, 0,   0, 0, 0, 0, 
}

Definition at line 821 of file cc708decoder.cpp.

Referenced by handle_cc_c0_ext1_p16().