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[Aaru.Decryption] Reformat and cleanup.

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Natalia Portillo
2023-10-03 23:10:41 +01:00
parent ac1db3b2e9
commit 4ce6ff54c8
10 changed files with 1615 additions and 1597 deletions
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131
DVD/MPEG.cs
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@@ -44,44 +44,107 @@ namespace Aaru.Decryption.DVD;
public class MPEG
{
static byte[] _mpeg2PackHeaderStartCode =
{
0x0, 0x0, 0x1
};
#region Mpeg2StreamId enum
public enum Mpeg2StreamId : byte
{
ProgramEnd = 0xB9, PackHeader = 0xBA, SystemHeader = 0xBB,
ProgramStreamMap = 0xBC, PrivateStream1 = 0xBD, PaddingStream = 0xBE,
PrivateStream2 = 0xBF, EcmStream = 0xF0, EmmStream = 0xF1,
ItuTRecH222_0_or_IsoIec13818_1AnnexA_or_IsoIec13818_6DsmccStream = 0xF2, IsoIec13522Stream = 0xF3,
ItuTRecH222_1TypeA = 0xF4, ItuTRecH222_1TypeB = 0xF5, ItuTRecH222_1TypeC = 0xF6,
ItuTRecH222_1TypeD = 0xF7, ItuTRecH222_1TypeE = 0xF8, AncillaryStream = 0xF9,
Reserved1 = 0xFA, Reserved2 = 0xFB, Reserved3 = 0xFC,
Reserved4 = 0xFD, Reserved5 = 0xFE, ProgramStreamDirectory = 0xFF,
ProgramEnd = 0xB9,
PackHeader = 0xBA,
SystemHeader = 0xBB,
ProgramStreamMap = 0xBC,
PrivateStream1 = 0xBD,
PaddingStream = 0xBE,
PrivateStream2 = 0xBF,
EcmStream = 0xF0,
EmmStream = 0xF1,
ItuTRecH222_0_or_IsoIec13818_1AnnexA_or_IsoIec13818_6DsmccStream = 0xF2,
IsoIec13522Stream = 0xF3,
ItuTRecH222_1TypeA = 0xF4,
ItuTRecH222_1TypeB = 0xF5,
ItuTRecH222_1TypeC = 0xF6,
ItuTRecH222_1TypeD = 0xF7,
ItuTRecH222_1TypeE = 0xF8,
AncillaryStream = 0xF9,
Reserved1 = 0xFA,
Reserved2 = 0xFB,
Reserved3 = 0xFC,
Reserved4 = 0xFD,
Reserved5 = 0xFE,
ProgramStreamDirectory = 0xFF,
// DVD Video can only hold 8 audio streams
MpegAudioStream1 = 0xC0, MpegAudioStream2 = 0xC1, MpegAudioStream3 = 0xC2,
MpegAudioStream4 = 0xC3, MpegAudioStream5 = 0xC4, MpegAudioStream6 = 0xC5,
MpegAudioStream7 = 0xC6, MpegAudioStream8 = 0xC7, MpegAudioStream9 = 0xC8,
MpegAudioStream10 = 0xC9, MpegAudioStream11 = 0xCA, MpegAudioStream12 = 0xCB,
MpegAudioStream13 = 0xCC, MpegAudioStream14 = 0xCD, MpegAudioStream15 = 0xCE,
MpegAudioStream16 = 0xCF, MpegAudioStream17 = 0xD0, MpegAudioStream18 = 0xD1,
MpegAudioStream19 = 0xD2, MpegAudioStream20 = 0xD3, MpegAudioStream21 = 0xD4,
MpegAudioStream22 = 0xD5, MpegAudioStream23 = 0xD6, MpegAudioStream24 = 0xD7,
MpegAudioStream25 = 0xD8, MpegAudioStream26 = 0xD9, MpegAudioStream27 = 0xDA,
MpegAudioStream28 = 0xDB, MpegAudioStream29 = 0xDC, MpegAudioStream30 = 0xDD,
MpegAudioStream31 = 0xDE, MpegAudioStream32 = 0xDF,
MpegAudioStream1 = 0xC0,
MpegAudioStream2 = 0xC1,
MpegAudioStream3 = 0xC2,
MpegAudioStream4 = 0xC3,
MpegAudioStream5 = 0xC4,
MpegAudioStream6 = 0xC5,
MpegAudioStream7 = 0xC6,
MpegAudioStream8 = 0xC7,
MpegAudioStream9 = 0xC8,
MpegAudioStream10 = 0xC9,
MpegAudioStream11 = 0xCA,
MpegAudioStream12 = 0xCB,
MpegAudioStream13 = 0xCC,
MpegAudioStream14 = 0xCD,
MpegAudioStream15 = 0xCE,
MpegAudioStream16 = 0xCF,
MpegAudioStream17 = 0xD0,
MpegAudioStream18 = 0xD1,
MpegAudioStream19 = 0xD2,
MpegAudioStream20 = 0xD3,
MpegAudioStream21 = 0xD4,
MpegAudioStream22 = 0xD5,
MpegAudioStream23 = 0xD6,
MpegAudioStream24 = 0xD7,
MpegAudioStream25 = 0xD8,
MpegAudioStream26 = 0xD9,
MpegAudioStream27 = 0xDA,
MpegAudioStream28 = 0xDB,
MpegAudioStream29 = 0xDC,
MpegAudioStream30 = 0xDD,
MpegAudioStream31 = 0xDE,
MpegAudioStream32 = 0xDF,
// DVD Video can only hold 1 video stream
MpegVideStream1 = 0xE0, MpegVideStream2 = 0xE1, MpegVideStream3 = 0xE2,
MpegVideStream4 = 0xE3, MpegVideStream5 = 0xE4, MpegVideStream6 = 0xE5,
MpegVideStream7 = 0xE6, MpegVideStream8 = 0xE7, MpegVideStream9 = 0xE8,
MpegVideStream10 = 0xE9, MpegVideStream11 = 0xEA, MpegVideStream12 = 0xEB,
MpegVideStream13 = 0xEC, MpegVideStream14 = 0xED, MpegVideStream15 = 0xEE,
MpegVideStream1 = 0xE0,
MpegVideStream2 = 0xE1,
MpegVideStream3 = 0xE2,
MpegVideStream4 = 0xE3,
MpegVideStream5 = 0xE4,
MpegVideStream6 = 0xE5,
MpegVideStream7 = 0xE6,
MpegVideStream8 = 0xE7,
MpegVideStream9 = 0xE8,
MpegVideStream10 = 0xE9,
MpegVideStream11 = 0xEA,
MpegVideStream12 = 0xEB,
MpegVideStream13 = 0xEC,
MpegVideStream14 = 0xED,
MpegVideStream15 = 0xEE,
MpegVideStream16 = 0xEF
}
#endregion
static readonly byte[] _mpeg2PackHeaderStartCode = { 0x0, 0x0, 0x1 };
public static bool ContainsMpegPackets(byte[] sectorData, uint blocks = 1, uint blockSize = 2048)
{
for(uint i = 0; i < blocks; i++)
{
if(IsMpegPacket(sectorData.Skip((int)(i * blockSize))))
return true;
}
return false;
}
public static bool IsMpegPacket(IEnumerable<byte> sector) =>
sector.Take(3).ToArray().SequenceEqual(_mpeg2PackHeaderStartCode);
#region Nested type: MpegHeader
public struct MpegHeader
{
[MarshalAs(UnmanagedType.ByValArray, SizeConst = 3)]
@@ -94,15 +157,5 @@ public class MPEG
byte packStuffingLengthBlock;
}
public static bool ContainsMpegPackets(byte[] sectorData, uint blocks = 1, uint blockSize = 2048)
{
for(uint i = 0; i < blocks; i++)
if(IsMpegPacket(sectorData.Skip((int)(i * blockSize))))
return true;
return false;
}
public static bool IsMpegPacket(IEnumerable<byte> sector) =>
sector.Take(3).ToArray().SequenceEqual(_mpeg2PackHeaderStartCode);
#endregion
}