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BMetaData: Add missing functionality

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* Add more metadata keys needed to support ffmpeg.
* Implement methods allowing to embed BMetaData into
BMetaData.
* Add methods to handle more types.
This commit is contained in:
Barrett17
2018-11-21 16:51:19 +01:00
parent f722040584
commit 9bbd53a288
2 changed files with 118 additions and 36 deletions
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headers/os/codec/MetaData.h
+34 -7
View File
@@ -6,6 +6,7 @@
#ifndef _META_DATA_H
#define _META_DATA_H
#include <Message.h>
@@ -40,34 +41,61 @@ extern const char* kComment; // BString
extern const char* kCopyright; // BString
extern const char* kAlbum; // BString
extern const char* kArtist; // BString
extern const char* kAlbumArtist; // BString
extern const char* kAuthor; // BString
extern const char* kPerformer; // BString
extern const char* kComposer; // BString
extern const char* kGenre; // BString
// TODO: what we would use for encoded dates?
// Date, // date
extern const char* kYear; // BString
extern const char* kEncodedBy; // BString
extern const char* kLanguage; // BString
extern const char* kDisc; // BString
extern const char* kPublisher; // BString
extern const char* kEncoder; // BString
extern const char* kTrack;
extern const char* kDate; // BString
extern const char* kDuration; // uint32 (ms)
extern const char* kRating; // BString
// TODO: BBitmap? uint8 array?
//AlbumArt,
// TODO: BBitmap? uint8 array? url?
//extern const char* kAlbumArt
extern const char* kCDTrackNum; // uint32
extern const char* kCDTrackMax; // uint32
extern const char* kChapter; // BMetaData
extern const char* kChapterStart; // int64
extern const char* kChapterEnd; // int64
// Others
extern const char* kProgramData; // BMetaData
class BMetaData {
public:
BMetaData();
BMetaData(const BMessage& msg);
virtual ~BMetaData();
~BMetaData();
BMetaData& operator=(const BMetaData& other);
// Woah. It seems we need BValue there.
bool SetString(const char* key, const BString& value);
bool SetBool(const char* key, bool value);
bool SetUInt32(const char* key, uint32 value);
bool SetInt32(const char* key, int32 value);
bool SetInt64(const char* key, int64 value);
bool GetString(const char* key, BString* value) const;
bool GetBool(const char* key, bool* value) const;
bool GetUInt32(const char* key, uint32* value) const;
bool GetInt32(const char* key, int32* value) const;
bool GetInt64(const char* key, int64* value) const;
// We allow embedding BMetaData into BMetaData. The BMetaData field
// is the only one allowed to have more occurrences for a single key
// so an index attribute is given for retrieving it.
bool AddMetaData(const char* key, BMetaData* data);
bool GetMetaData(const char* key, BMetaData* data,
uint32 index = 0);
bool RemoveValue(const char* key);
@@ -77,14 +105,13 @@ public:
// Retain ownership of the object, be careful with that
// that's why we need to introduce smart pointers!
BMessage* Message();
const BMessage* Message();
private:
// TODO: padding
BMessage* fMessage;
BMetaData(const BMetaData&);
BMetaData& operator=(const BMetaData&);
};
} // namespace media