Clementine-audio-player-Mac-Linux-Windows/ext/libclementine-tagreader/gmereader.h

#ifndef GMEREADER_H
#define GMEREADER_H

#include <QtCore>
#include "tagreadermessages.pb.h"

class QFileInfo;
class QByteArray;

namespace GME {
bool IsSupportedFormat(const QFileInfo& file_info);
void ReadFile(const QFileInfo& file_info,
              cpb::tagreader::SongMetadata* song_info);

namespace SPC {
/* SPC SPEC:
 * http://vspcplay.raphnet.net/spc_file_format.txt
 */
const int HAS_ID6_OFFSET = 0x23;
const int SONG_TITLE_OFFSET = 0x2E;
const int GAME_TITLE_OFFSET = 0x4E;
const int DUMPER_OFFSET = 0x6E;
const int COMMENTS_OFFSET = 0x7E;
/*It seems that intro length and fade length are inconsistent from
 *file to file. It should be looked into within the GME source code
 *to see how GStreamer gets its values for playback length.*/
const int INTRO_LENGTH_OFFSET = 0xA9;
const int INTRO_LENGTH_SIZE = 3;
const int FADE_LENGTH_OFFSET = 0xAC;
const int FADE_LENGTH_SIZE = 4;
const int ARTIST_OFFSET = 0xB1;
const int XID6_OFFSET = (0x101C0 + 64);

const int NANO_PER_MS = 1000000;

enum xID6_STATUS {
  ON = 0x26,
  OFF = 0x27,
};

enum xID6_ID { SongName = 0x01, GameName = 0x02, ArtistName = 0x03 };

enum xID6_TYPE { Length = 0x0, String = 0x1, Integer = 0x4 };

void Read(const QFileInfo& file_info, cpb::tagreader::SongMetadata* song_info);
qint16 GetNextMemAddressAlign32bit(qint16 input);
quint64 ConvertSPCStringToNum(const QByteArray& arr);
}  // namespace SPC

namespace VGM {
/* VGM SPEC:
 * http://www.smspower.org/uploads/Music/vgmspec170.txt?sid=17c810c54633b6dd4982f92f718361c1
 * GD3 TAG SPEC:
 * http://www.smspower.org/uploads/Music/gd3spec100.txt */
const int GD3_TAG_PTR = 0x14;
const int SAMPLE_COUNT = 0x18;
const int LOOP_SAMPLE_COUNT = 0x20;
const int SAMPLE_TIMEBASE = 44100;
const int GST_GME_LOOP_TIME_MS = 8000;

void Read(const QFileInfo& file_info, cpb::tagreader::SongMetadata* song_info);
/* Takes in two QByteArrays, expected to be 4 bytes long. Desired length
 * is returned via output parameter out_length. Returns false on error. */
bool GetPlaybackLength(const QByteArray& sample_count_bytes,
                       const QByteArray& loop_count_bytes, quint64& out_length);

}  // namespace VGM

}  // namespace GME

#endif