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// -*- Mode: c++ -*-
#ifndef CCDECODER_H_
#define CCDECODER_H_
#include <stdint.h>
#include <vector>
using namespace std;
#include <QString>
#include <QMutex>
#include <QChar>
#include "format.h"
class CC608Reader
{
public:
virtual ~CC608Reader() { }
virtual void AddTextData(unsigned char *buf, int len,
long long timecode, char type) = 0;
};
enum
{
kHasMPAA = 0x1,
kHasTPG = 0x2,
kHasCanEnglish = 0x4,
kHasCanFrench = 0x8,
};
enum
{
kRatingMPAA = 0,
kRatingTPG,
kRatingCanEnglish,
kRatingCanFrench,
};
class CC608Decoder
{
public:
CC608Decoder(CC608Reader *ccr);
~CC608Decoder();
void FormatCC(int tc, int code1, int code2);
void FormatCCField(int tc, int field, int data);
int FalseDup(int tc, int field, int data);
void DecodeVPS(const unsigned char *buf);
void DecodeWSS(const unsigned char *buf);
void SetIgnoreTimecode(bool val) { ignore_time_code = val; }
uint GetRatingSystems(bool future) const;
uint GetRating(uint i, bool future) const;
QString GetRatingString(uint i, bool future) const;
QString GetProgramName(bool future) const;
QString GetProgramType(bool future) const;
QString GetXDS(const QString &key) const;
private:
QChar CharCC(int code) const { return stdchar[code]; }
void ResetCC(int mode);
void BufferCC(int mode, int len, int clr);
int NewRowCC(int mode, int len);
QString XDSDecodeString(const vector<unsigned char>&,
uint string, uint end) const;
void XDSDecode(int field, int b1, int b2);
bool XDSPacketParseProgram(const vector<unsigned char> &xds_buf,
bool future);
bool XDSPacketParseChannel(const vector<unsigned char> &xds_buf);
void XDSPacketParse(const vector<unsigned char> &xds_buf);
bool XDSPacketCRC(const vector<unsigned char> &xds_buf);
CC608Reader *reader;
bool ignore_time_code;
// per-field
int badvbi[2];
int lasttc[2];
int lastcode[2];
int lastcodetc[2];
int ccmode[2]; // 0=cc1/txt1, 1=cc2/txt2
int xds[2];
int txtmode[4];
// per-mode state
int lastrow[8];
int newrow[8];
int newcol[8];
int timecode[8];
int row[8];
int col[8];
int rowcount[8];
int style[8];
int linecont[8];
int resumetext[8];
int lastclr[8];
QString ccbuf[8];
// translation table
QChar stdchar[128];
// temporary buffer
unsigned char *rbuf;
// VPS data
char vps_pr_label[20];
char vps_label[20];
int vps_l;
// WSS data
uint wss_flags;
bool wss_valid;
vector<unsigned char> xds_buf;
uint xds_crc_passed;
uint xds_crc_failed;
mutable QMutex xds_lock;
uint xds_rating_systems[2];
uint xds_rating[2][4];
QString xds_program_name[2];
vector<uint> xds_program_type[2];
QString xds_net_call;
QString xds_net_name;
uint xds_tsid;
QString xds_program_type_string[96];
};
#endif
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