dishdescriptors.h

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// -*- Mode: c++ -*-
// Copyright (c) 2003-2004, Daniel Thor Kristjansson
#ifndef DISH_DESCRIPTORS_H
#define DISH_DESCRIPTORS_H
 
#include <QString>
#include <QMutex>
#include <QDate>
#include <QMap>
 
#include "atscdescriptors.h"
#include "dvbdescriptors.h"
 
class DishEventMPAADescriptor : public MPEGDescriptor
{
  public:
    explicit DishEventMPAADescriptor(const unsigned char *data, int len = 300) :
        MPEGDescriptor(data, len, PrivateDescriptorID::dish_event_mpaa) { }
    //       Name             bits  loc  expected value
    // descriptor_tag           8   0.0       0x89
    // descriptor_length        8   1.0
    // stars                    3   2.0
    uint stars_raw(void) const { return (m_data[2] & 0xe0) >> 0x05; }
    float stars(void) const;
 
    // rating                   3   2.3
    uint rating_raw(void) const { return (m_data[2] & 0x1c) >> 0x02; }
    QString rating(void) const;
 
    // advisories               8   3.0
    uint advisory_raw(void) const { return m_data[3]; }
    QString advisory(void) const;
 
  private:
    static void Init(void);
 
  private:
    static QMutex             s_mpaaRatingsLock;
    static QMap<uint,QString> s_mpaaRatingsDesc;
    static bool               s_mpaaRatingsExists;
};
 
class DishEventVCHIPDescriptor : public MPEGDescriptor
{
  public:
    explicit DishEventVCHIPDescriptor(const unsigned char *data, int len = 300) :
        MPEGDescriptor(data, len, PrivateDescriptorID::dish_event_vchip) { }
    //       Name             bits  loc  expected value
    // descriptor_tag           8   0.0       0x95
    // descriptor_length        8   1.0
    // rating                   8   2.0
    uint rating_raw(void) const { return m_data[2]; }
    QString rating(void) const;
 
    // advisory                 8   3.0
    uint advisory_raw(void) const { return m_data[3]; }
    QString advisory(void) const;
 
  private:
    static void Init(void);
 
  private:
    static QMutex             s_vchipRatingsLock;
    static QMap<uint,QString> s_vchipRatingsDesc;
    static bool               s_vchipRatingsExists;
};
 
class DishEventNameDescriptor : public MPEGDescriptor
{
  public:
    explicit DishEventNameDescriptor(const unsigned char *data, int len = 300) :
        MPEGDescriptor(data, len, PrivateDescriptorID::dish_event_name) { }
    //       Name             bits  loc  expected value
    // descriptor_tag           8   0.0       0x91
    // descriptor_length        8   1.0
    // unknown                  8   2.0
    // event_name            dlen-1 3.0
    bool HasName(void) const { return DescriptorLength() > 1; }
    QString Name(uint compression_type) const;
};
 
class DishEventDescriptionDescriptor : public MPEGDescriptor
{
  public:
    explicit DishEventDescriptionDescriptor(const unsigned char *data, int len = 300) :
        MPEGDescriptor(
            data, len, PrivateDescriptorID::dish_event_description) { }
    //       Name             bits  loc  expected value
    // descriptor_tag           8   0.0       0x92
    // descriptor_length        8   1.0
    // unknown                 8/16 2.0
    // event_name            dlen-2 3.0/4.0
    const unsigned char *DescriptionRaw(void) const;
    uint DescriptionRawLength(void) const;
    bool HasDescription(void) const { return DescriptionRawLength() != 0U; }
    QString Description(uint compression_type) const;
};
 
class DishEventPropertiesDescriptor : public MPEGDescriptor
{
  public:
    explicit DishEventPropertiesDescriptor(const unsigned char *data, int len = 300) :
        MPEGDescriptor(
            data, len, PrivateDescriptorID::dish_event_properties) { }
    //       Name             bits  loc  expected value
    // descriptor_tag           8   0.0       0x94
    // descriptor_length        8   1.0
    // unknown                  8   2.0
    // event_name            dlen-1 3.0
    bool HasProperties(void) const { return DescriptorLength() > 1; }
    uint SubtitleProperties(uint compression_type) const;
    uint AudioProperties(uint compression_type) const;
 
  private:
    void decompress_properties(uint compression_type) const;
 
  private:
    static uint s_subtitleProps;
    static uint s_audioProps;
    static bool s_decompressed;
};
 
class DishEventTagsDescriptor : public MPEGDescriptor
{
  public:
    explicit DishEventTagsDescriptor(const unsigned char *data, int len = 300) :
        MPEGDescriptor(data, len, PrivateDescriptorID::dish_event_tags) { }
    //       Name             bits  loc  expected value
    // descriptor_tag           8   0.0       0x96
    // descriptor_length        8   1.0
    // seriesid                 64  2.0
    QString seriesid(void) const;
    QString programid(void) const;
    QDate originalairdate(void) const;
};
 
enum DishThemeType : std::uint8_t
{
    kThemeNone = 0,
    kThemeMovie,
    kThemeSports,
    kThemeNews,
    kThemeFamily,
    kThemeEducation,
    kThemeSeries,
    kThemeMusic,
    kThemeReligious,
    kThemeOffAir,
    kThemeLast,
};
 
QString dish_theme_type_to_string(uint theme_type);
DishThemeType string_to_dish_theme_type(const QString &type);
 
class DishContentDescriptor : public ContentDescriptor
{
  public:
    explicit DishContentDescriptor(const unsigned char *data, int len = 300) :
        ContentDescriptor(data, len) { }
 
    DishThemeType GetTheme(void) const;
    QString GetCategory(void) const;
    QString toString() const override; // ContentDescriptor
 
  private:
    static void Init(void);
 
  private:
    static QMap<uint,QString> s_themeDesc;
    static QMap<uint,QString> s_dishCategoryDesc;
    static volatile bool      s_dishCategoryDescExists;
};
 
#endif // DISH_DESCRIPTORS_H