├── .gitattributes ├── .gitignore ├── LICENSE ├── README.md ├── WEMSharp.sln ├── WEMSharp ├── BitStream.cs ├── CRC32.cs ├── CodebookLibrary.cs ├── OggStream.cs ├── Packet.cs ├── Packet8.cs ├── Properties │ └── AssemblyInfo.cs ├── WEMFile.cs └── WEMSharp.csproj └── WEMSharpTests ├── App.config ├── Program.cs ├── Properties └── AssemblyInfo.cs └── WEMSharpTests.csproj /.gitattributes: -------------------------------------------------------------------------------- 1 | # Auto detect text files and perform LF normalization 2 | * text=auto 3 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | ## Ignore Visual Studio temporary files, build results, and 2 | ## files generated by popular Visual Studio add-ons. 3 | ## 4 | ## Get latest from https://github.com/github/gitignore/blob/master/VisualStudio.gitignore 5 | 6 | # User-specific files 7 | *.suo 8 | *.user 9 | *.userosscache 10 | *.sln.docstates 11 | 12 | # User-specific files (MonoDevelop/Xamarin Studio) 13 | *.userprefs 14 | 15 | # Build results 16 | [Dd]ebug/ 17 | [Dd]ebugPublic/ 18 | [Rr]elease/ 19 | [Rr]eleases/ 20 | x64/ 21 | x86/ 22 | bld/ 23 | [Bb]in/ 24 | [Oo]bj/ 25 | [Ll]og/ 26 | 27 | # Visual Studio 2015 cache/options directory 28 | .vs/ 29 | # Uncomment if you have tasks that create the project's static files in wwwroot 30 | #wwwroot/ 31 | 32 | # MSTest test Results 33 | [Tt]est[Rr]esult*/ 34 | [Bb]uild[Ll]og.* 35 | 36 | # NUNIT 37 | *.VisualState.xml 38 | TestResult.xml 39 | 40 | # Build Results of an ATL Project 41 | [Dd]ebugPS/ 42 | [Rr]eleasePS/ 43 | dlldata.c 44 | 45 | # Benchmark Results 46 | BenchmarkDotNet.Artifacts/ 47 | 48 | # .NET Core 49 | project.lock.json 50 | project.fragment.lock.json 51 | artifacts/ 52 | **/Properties/launchSettings.json 53 | 54 | *_i.c 55 | *_p.c 56 | *_i.h 57 | *.ilk 58 | *.meta 59 | *.obj 60 | *.pch 61 | *.pdb 62 | *.pgc 63 | *.pgd 64 | *.rsp 65 | *.sbr 66 | *.tlb 67 | *.tli 68 | *.tlh 69 | *.tmp 70 | *.tmp_proj 71 | *.log 72 | *.vspscc 73 | *.vssscc 74 | .builds 75 | *.pidb 76 | *.svclog 77 | *.scc 78 | 79 | # Chutzpah Test files 80 | _Chutzpah* 81 | 82 | # Visual C++ cache files 83 | ipch/ 84 | *.aps 85 | *.ncb 86 | *.opendb 87 | *.opensdf 88 | *.sdf 89 | *.cachefile 90 | *.VC.db 91 | *.VC.VC.opendb 92 | 93 | # Visual Studio profiler 94 | *.psess 95 | *.vsp 96 | *.vspx 97 | *.sap 98 | 99 | # TFS 2012 Local Workspace 100 | $tf/ 101 | 102 | # Guidance Automation Toolkit 103 | *.gpState 104 | 105 | # ReSharper is a .NET coding add-in 106 | _ReSharper*/ 107 | *.[Rr]e[Ss]harper 108 | *.DotSettings.user 109 | 110 | # JustCode is a .NET coding add-in 111 | .JustCode 112 | 113 | # TeamCity is a build add-in 114 | _TeamCity* 115 | 116 | # DotCover is a Code Coverage Tool 117 | *.dotCover 118 | 119 | # AxoCover is a Code Coverage Tool 120 | .axoCover/* 121 | !.axoCover/settings.json 122 | 123 | # Visual Studio code coverage results 124 | *.coverage 125 | *.coveragexml 126 | 127 | # NCrunch 128 | _NCrunch_* 129 | .*crunch*.local.xml 130 | nCrunchTemp_* 131 | 132 | # MightyMoose 133 | *.mm.* 134 | AutoTest.Net/ 135 | 136 | # Web workbench (sass) 137 | .sass-cache/ 138 | 139 | # Installshield output folder 140 | [Ee]xpress/ 141 | 142 | # DocProject is a documentation generator add-in 143 | DocProject/buildhelp/ 144 | DocProject/Help/*.HxT 145 | DocProject/Help/*.HxC 146 | DocProject/Help/*.hhc 147 | DocProject/Help/*.hhk 148 | DocProject/Help/*.hhp 149 | DocProject/Help/Html2 150 | DocProject/Help/html 151 | 152 | # Click-Once directory 153 | publish/ 154 | 155 | # Publish Web Output 156 | *.[Pp]ublish.xml 157 | *.azurePubxml 158 | # Note: Comment the next line if you want to checkin your web deploy settings, 159 | # but database connection strings (with potential passwords) will be unencrypted 160 | *.pubxml 161 | *.publishproj 162 | 163 | # Microsoft Azure Web App publish settings. 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EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT 593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY 594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, 595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM 597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF 598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION. 599 | 600 | 16. Limitation of Liability. 601 | 602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS 604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY 605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE 606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF 607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD 608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), 609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF 610 | SUCH DAMAGES. 611 | 612 | 17. Interpretation of Sections 15 and 16. 613 | 614 | If the disclaimer of warranty and limitation of liability provided 615 | above cannot be given local legal effect according to their terms, 616 | reviewing courts shall apply local law that most closely approximates 617 | an absolute waiver of all civil liability in connection with the 618 | Program, unless a warranty or assumption of liability accompanies a 619 | copy of the Program in return for a fee. 620 | 621 | END OF TERMS AND CONDITIONS 622 | 623 | How to Apply These Terms to Your New Programs 624 | 625 | If you develop a new program, and you want it to be of the greatest 626 | possible use to the public, the best way to achieve this is to make it 627 | free software which everyone can redistribute and change under these terms. 628 | 629 | To do so, attach the following notices to the program. It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | {one line to give the program's name and a brief idea of what it does.} 635 | Copyright (C) 2018 {name of author} 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | WEMSharp Copyright (C) 2018 Crauzer 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # WEMSharp 2 | 3 | WEMSharp is a C# library used to convert Audiokinetic Wwise WEM files to OGG files. 4 | 5 | This project was inspired by [ww2ogg](https://github.com/hcs64/ww2ogg). 6 | 7 | ## Usage 8 | ```csharp 9 | 10 | WEMFile wem = new WEMFile("locationOfYourWemFile", yourDesiredPacketForcing); 11 | wem.GenerateOGG("locationOfTheOggFile", "locationOfCodebooksToUse", inlineCodebooks, fullSetup); 12 | 13 | ``` 14 | 15 | * Packet Format Forcing 16 | * NoForcePacketFormat - Uses the original Mod Packet Format from the WEM file. 17 | * ForceModPackets - Forces to modify the original packets. 18 | * ForceNoModPackets - Forces to not modify the original packets. 19 | 20 | * Inline Codebooks 21 | 22 | Whether codebooks should be loaded from the WEM file. 23 | 24 | If `false`, `codebooksLocation` must not be empty. 25 | If `true`, `codebooksLocation` should be empty. 26 | 27 | * Full Setup 28 | 29 | Whether the setup packet should be copied from the WEM file. 30 | -------------------------------------------------------------------------------- /WEMSharp.sln: -------------------------------------------------------------------------------- 1 |  2 | Microsoft Visual Studio Solution File, Format Version 12.00 3 | # Visual Studio 15 4 | VisualStudioVersion = 15.0.27004.2005 5 | MinimumVisualStudioVersion = 10.0.40219.1 6 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WEMSharp", "WEMSharp\WEMSharp.csproj", "{2EDFD763-C9CF-459E-9227-AFEBCAD33850}" 7 | EndProject 8 | Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "WEMSharpTests", "WEMSharpTests\WEMSharpTests.csproj", "{B44CD6C2-E676-4A51-A16B-7D6F8BEDF6FC}" 9 | EndProject 10 | Global 11 | GlobalSection(SolutionConfigurationPlatforms) = preSolution 12 | Debug|Any CPU = Debug|Any CPU 13 | Release|Any CPU = Release|Any CPU 14 | EndGlobalSection 15 | GlobalSection(ProjectConfigurationPlatforms) = postSolution 16 | {2EDFD763-C9CF-459E-9227-AFEBCAD33850}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 17 | {2EDFD763-C9CF-459E-9227-AFEBCAD33850}.Debug|Any CPU.Build.0 = Debug|Any CPU 18 | {2EDFD763-C9CF-459E-9227-AFEBCAD33850}.Release|Any CPU.ActiveCfg = Release|Any CPU 19 | {2EDFD763-C9CF-459E-9227-AFEBCAD33850}.Release|Any CPU.Build.0 = Release|Any CPU 20 | {B44CD6C2-E676-4A51-A16B-7D6F8BEDF6FC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU 21 | {B44CD6C2-E676-4A51-A16B-7D6F8BEDF6FC}.Debug|Any CPU.Build.0 = Debug|Any CPU 22 | {B44CD6C2-E676-4A51-A16B-7D6F8BEDF6FC}.Release|Any CPU.ActiveCfg = Release|Any CPU 23 | {B44CD6C2-E676-4A51-A16B-7D6F8BEDF6FC}.Release|Any CPU.Build.0 = Release|Any CPU 24 | EndGlobalSection 25 | GlobalSection(SolutionProperties) = preSolution 26 | HideSolutionNode = FALSE 27 | EndGlobalSection 28 | GlobalSection(ExtensibilityGlobals) = postSolution 29 | SolutionGuid = {487B818C-59F6-475B-A0B8-BBEE2AAD49A8} 30 | EndGlobalSection 31 | EndGlobal 32 | -------------------------------------------------------------------------------- /WEMSharp/BitStream.cs: -------------------------------------------------------------------------------- 1 | using System.IO; 2 | 3 | namespace WEMSharp 4 | { 5 | /// 6 | /// Wrapper around a Stream that supports reading bits 7 | /// 8 | internal class BitStream 9 | { 10 | private Stream _stream; 11 | private byte _bitBuffer; 12 | private int _bitsLeft; 13 | internal ulong TotalBitsRead { get; private set; } 14 | 15 | internal BitStream(Stream stream) 16 | { 17 | this._stream = stream; 18 | } 19 | 20 | /// 21 | /// Reads a bit from the Stream 22 | /// 23 | internal byte GetBit() 24 | { 25 | if (this._bitsLeft == 0) 26 | { 27 | this._bitBuffer = (byte)this._stream.ReadByte(); 28 | this._bitsLeft = 8; 29 | } 30 | 31 | this.TotalBitsRead++; 32 | this._bitsLeft--; 33 | 34 | return (this._bitBuffer & (0x80 >> this._bitsLeft)) != 0 ? (byte)1 : (byte)0; 35 | } 36 | 37 | /// 38 | /// Read an arbitary amount of bits from the stream 39 | /// 40 | /// Amount of bits to read 41 | internal uint Read(int bitCount) 42 | { 43 | uint result = 0; 44 | 45 | for (int i = 0; i < bitCount; i++) 46 | { 47 | if (GetBit() == 1) 48 | { 49 | result |= (1U << i); 50 | } 51 | } 52 | 53 | return result; 54 | } 55 | } 56 | } 57 | -------------------------------------------------------------------------------- /WEMSharp/CRC32.cs: -------------------------------------------------------------------------------- 1 | namespace WEMSharp 2 | { 3 | internal static class CRC32 4 | { 5 | private static readonly uint[] CRC_LOOKUP = new uint[] 6 | { 7 | 0x00000000,0x04c11db7,0x09823b6e,0x0d4326d9, 8 | 0x130476dc,0x17c56b6b,0x1a864db2,0x1e475005, 9 | 0x2608edb8,0x22c9f00f,0x2f8ad6d6,0x2b4bcb61, 10 | 0x350c9b64,0x31cd86d3,0x3c8ea00a,0x384fbdbd, 11 | 0x4c11db70,0x48d0c6c7,0x4593e01e,0x4152fda9, 12 | 0x5f15adac,0x5bd4b01b,0x569796c2,0x52568b75, 13 | 0x6a1936c8,0x6ed82b7f,0x639b0da6,0x675a1011, 14 | 0x791d4014,0x7ddc5da3,0x709f7b7a,0x745e66cd, 15 | 0x9823b6e0,0x9ce2ab57,0x91a18d8e,0x95609039, 16 | 0x8b27c03c,0x8fe6dd8b,0x82a5fb52,0x8664e6e5, 17 | 0xbe2b5b58,0xbaea46ef,0xb7a96036,0xb3687d81, 18 | 0xad2f2d84,0xa9ee3033,0xa4ad16ea,0xa06c0b5d, 19 | 0xd4326d90,0xd0f37027,0xddb056fe,0xd9714b49, 20 | 0xc7361b4c,0xc3f706fb,0xceb42022,0xca753d95, 21 | 0xf23a8028,0xf6fb9d9f,0xfbb8bb46,0xff79a6f1, 22 | 0xe13ef6f4,0xe5ffeb43,0xe8bccd9a,0xec7dd02d, 23 | 0x34867077,0x30476dc0,0x3d044b19,0x39c556ae, 24 | 0x278206ab,0x23431b1c,0x2e003dc5,0x2ac12072, 25 | 0x128e9dcf,0x164f8078,0x1b0ca6a1,0x1fcdbb16, 26 | 0x018aeb13,0x054bf6a4,0x0808d07d,0x0cc9cdca, 27 | 0x7897ab07,0x7c56b6b0,0x71159069,0x75d48dde, 28 | 0x6b93dddb,0x6f52c06c,0x6211e6b5,0x66d0fb02, 29 | 0x5e9f46bf,0x5a5e5b08,0x571d7dd1,0x53dc6066, 30 | 0x4d9b3063,0x495a2dd4,0x44190b0d,0x40d816ba, 31 | 0xaca5c697,0xa864db20,0xa527fdf9,0xa1e6e04e, 32 | 0xbfa1b04b,0xbb60adfc,0xb6238b25,0xb2e29692, 33 | 0x8aad2b2f,0x8e6c3698,0x832f1041,0x87ee0df6, 34 | 0x99a95df3,0x9d684044,0x902b669d,0x94ea7b2a, 35 | 0xe0b41de7,0xe4750050,0xe9362689,0xedf73b3e, 36 | 0xf3b06b3b,0xf771768c,0xfa325055,0xfef34de2, 37 | 0xc6bcf05f,0xc27dede8,0xcf3ecb31,0xcbffd686, 38 | 0xd5b88683,0xd1799b34,0xdc3abded,0xd8fba05a, 39 | 0x690ce0ee,0x6dcdfd59,0x608edb80,0x644fc637, 40 | 0x7a089632,0x7ec98b85,0x738aad5c,0x774bb0eb, 41 | 0x4f040d56,0x4bc510e1,0x46863638,0x42472b8f, 42 | 0x5c007b8a,0x58c1663d,0x558240e4,0x51435d53, 43 | 0x251d3b9e,0x21dc2629,0x2c9f00f0,0x285e1d47, 44 | 0x36194d42,0x32d850f5,0x3f9b762c,0x3b5a6b9b, 45 | 0x0315d626,0x07d4cb91,0x0a97ed48,0x0e56f0ff, 46 | 0x1011a0fa,0x14d0bd4d,0x19939b94,0x1d528623, 47 | 0xf12f560e,0xf5ee4bb9,0xf8ad6d60,0xfc6c70d7, 48 | 0xe22b20d2,0xe6ea3d65,0xeba91bbc,0xef68060b, 49 | 0xd727bbb6,0xd3e6a601,0xdea580d8,0xda649d6f, 50 | 0xc423cd6a,0xc0e2d0dd,0xcda1f604,0xc960ebb3, 51 | 0xbd3e8d7e,0xb9ff90c9,0xb4bcb610,0xb07daba7, 52 | 0xae3afba2,0xaafbe615,0xa7b8c0cc,0xa379dd7b, 53 | 0x9b3660c6,0x9ff77d71,0x92b45ba8,0x9675461f, 54 | 0x8832161a,0x8cf30bad,0x81b02d74,0x857130c3, 55 | 0x5d8a9099,0x594b8d2e,0x5408abf7,0x50c9b640, 56 | 0x4e8ee645,0x4a4ffbf2,0x470cdd2b,0x43cdc09c, 57 | 0x7b827d21,0x7f436096,0x7200464f,0x76c15bf8, 58 | 0x68860bfd,0x6c47164a,0x61043093,0x65c52d24, 59 | 0x119b4be9,0x155a565e,0x18197087,0x1cd86d30, 60 | 0x029f3d35,0x065e2082,0x0b1d065b,0x0fdc1bec, 61 | 0x3793a651,0x3352bbe6,0x3e119d3f,0x3ad08088, 62 | 0x2497d08d,0x2056cd3a,0x2d15ebe3,0x29d4f654, 63 | 0xc5a92679,0xc1683bce,0xcc2b1d17,0xc8ea00a0, 64 | 0xd6ad50a5,0xd26c4d12,0xdf2f6bcb,0xdbee767c, 65 | 0xe3a1cbc1,0xe760d676,0xea23f0af,0xeee2ed18, 66 | 0xf0a5bd1d,0xf464a0aa,0xf9278673,0xfde69bc4, 67 | 0x89b8fd09,0x8d79e0be,0x803ac667,0x84fbdbd0, 68 | 0x9abc8bd5,0x9e7d9662,0x933eb0bb,0x97ffad0c, 69 | 0xafb010b1,0xab710d06,0xa6322bdf,0xa2f33668, 70 | 0xbcb4666d,0xb8757bda,0xb5365d03,0xb1f740b4 71 | }; 72 | 73 | internal static uint Compute(byte[] buffer, uint size) 74 | { 75 | uint hash = 0; 76 | 77 | for (int i = 0; i < size; i++) 78 | { 79 | hash = (hash << 8) ^ CRC_LOOKUP[((hash >> 24) & 0xFF) ^ buffer[i]]; 80 | } 81 | 82 | return hash; 83 | } 84 | } 85 | } 86 | -------------------------------------------------------------------------------- /WEMSharp/CodebookLibrary.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Linq; 4 | 5 | namespace WEMSharp 6 | { 7 | internal class CodebookLibrary 8 | { 9 | public uint CodebookCount { get; private set; } 10 | private byte[] _codebookData; 11 | private uint[] _codebookOffsets; 12 | 13 | internal CodebookLibrary() { } 14 | 15 | internal CodebookLibrary(string fileLocation) 16 | { 17 | using (BinaryReader br = new BinaryReader(File.OpenRead(fileLocation))) 18 | { 19 | br.BaseStream.Seek(br.BaseStream.Length - 4, SeekOrigin.Begin); 20 | 21 | uint offsetOffset = br.ReadUInt32(); 22 | this.CodebookCount = (uint)(br.BaseStream.Length - offsetOffset) / 4; 23 | this._codebookOffsets = new uint[this.CodebookCount]; 24 | 25 | br.BaseStream.Seek(0, SeekOrigin.Begin); 26 | 27 | this._codebookData = br.ReadBytes((int)offsetOffset); 28 | 29 | for (int i = 0; i < this.CodebookCount; i++) 30 | { 31 | this._codebookOffsets[i] = br.ReadUInt32(); 32 | } 33 | } 34 | } 35 | 36 | internal void Copy(BitStream bitStream, OggStream ogg) 37 | { 38 | //https://xiph.org/vorbis/doc/Vorbis_I_spec.pdf 39 | 40 | byte[] id = new byte[] 41 | { 42 | (byte)bitStream.Read(8), 43 | (byte)bitStream.Read(8), 44 | (byte)bitStream.Read(8) 45 | }; 46 | 47 | ushort dimensions = (ushort)bitStream.Read(16); 48 | uint entries = bitStream.Read(24); 49 | 50 | if (id[0] != 0x42 || id[1] != 0x43 || id[2] != 0x56) 51 | { 52 | throw new Exception("Invalid Codebook Sync Pattern"); 53 | } 54 | 55 | ogg.BitWrite(id[0]); 56 | ogg.BitWrite(id[1]); 57 | ogg.BitWrite(id[2]); 58 | 59 | ogg.BitWrite(dimensions); 60 | ogg.BitWrite(entries, 24); 61 | 62 | byte orderedFlag = (byte)bitStream.Read(1); 63 | ogg.WriteBit(orderedFlag); 64 | if (orderedFlag == 1) 65 | { 66 | byte initialLength = (byte)bitStream.Read(5); 67 | ogg.BitWrite(initialLength, 5); 68 | 69 | uint currentEntry = 0; 70 | while (currentEntry < entries) 71 | { 72 | uint bitCount = ILog(entries - currentEntry); 73 | uint number = bitStream.Read((int)bitCount); 74 | ogg.BitWrite(number, (byte)bitCount); 75 | currentEntry += number; 76 | } 77 | 78 | if (currentEntry > entries) 79 | { 80 | throw new Exception("There was an error copying a codebook"); 81 | } 82 | } 83 | else 84 | { 85 | byte sparseFlag = (byte)bitStream.Read(1); 86 | ogg.WriteBit(sparseFlag); 87 | 88 | for (int i = 0; i < entries; i++) 89 | { 90 | bool presentBool = true; 91 | 92 | if (sparseFlag == 1) 93 | { 94 | byte sparsePresenceFlag = (byte)bitStream.Read(1); 95 | ogg.WriteBit(sparsePresenceFlag); 96 | 97 | presentBool = sparsePresenceFlag == 1; 98 | } 99 | else 100 | { 101 | byte codewordLength = (byte)bitStream.Read(5); 102 | ogg.BitWrite(codewordLength, 5); 103 | } 104 | } 105 | } 106 | 107 | byte lookupType = (byte)bitStream.Read(4); 108 | ogg.BitWrite(lookupType, 4); 109 | if (lookupType == 1) 110 | { 111 | ogg.BitWrite(bitStream.Read(32)); 112 | ogg.BitWrite(bitStream.Read(32)); 113 | byte valueLength = (byte)bitStream.Read(4); 114 | ogg.BitWrite(valueLength, 4); 115 | ogg.WriteBit((byte)bitStream.Read(1)); 116 | 117 | uint quantValues = QuantValues(entries, dimensions); 118 | for (int i = 0; i < quantValues; i++) 119 | { 120 | uint value = bitStream.Read(valueLength + 1); 121 | ogg.BitWrite(value, (byte)(valueLength + 1)); 122 | } 123 | } 124 | else 125 | { 126 | throw new Exception("There was an error copying a codebook"); 127 | } 128 | } 129 | 130 | internal void Rebuild(uint index, OggStream ogg) 131 | { 132 | byte[] codebook = GetCodebook(index); 133 | uint codebookSize = GetCodebookSize(index); 134 | 135 | if (codebookSize == 0xFFFFFFFF || codebook == null) 136 | { 137 | throw new Exception("Invalid Codebook Index"); 138 | } 139 | 140 | Rebuild(new BitStream(new MemoryStream(codebook)), codebookSize, ogg); 141 | } 142 | 143 | internal void Rebuild(BitStream bitStream, uint codebookSize, OggStream ogg) 144 | { 145 | byte dimensions = (byte)bitStream.Read(4); 146 | ushort entries = (ushort)bitStream.Read(14); 147 | 148 | ogg.BitWrite(0x564342, 24); 149 | ogg.BitWrite((ushort)dimensions, 16); 150 | ogg.BitWrite((uint)entries, 24); 151 | 152 | byte orderedFlag = (byte)bitStream.Read(1); 153 | ogg.WriteBit(orderedFlag); 154 | if (orderedFlag == 1) 155 | { 156 | byte initialLength = (byte)bitStream.Read(5); 157 | ogg.BitWrite(initialLength, 5); 158 | 159 | uint currentEntry = 0; 160 | while (currentEntry < entries) 161 | { 162 | uint bitCount = ILog(entries - currentEntry); 163 | uint number = bitStream.Read((int)bitCount); 164 | ogg.BitWrite(number, (byte)bitCount); 165 | currentEntry += number; 166 | } 167 | 168 | if (currentEntry > entries) 169 | { 170 | throw new Exception("There was an error rebuilding a codebook"); 171 | } 172 | } 173 | else 174 | { 175 | byte codewordLengthLength = (byte)bitStream.Read(3); 176 | byte sparseFlag = (byte)bitStream.Read(1); 177 | ogg.WriteBit(sparseFlag); 178 | 179 | if (codewordLengthLength == 0 || codewordLengthLength > 5) 180 | { 181 | throw new Exception("There was an error rebuilding a codebook"); 182 | } 183 | 184 | for (int i = 0; i < entries; i++) 185 | { 186 | bool presentBool = true; 187 | 188 | if (sparseFlag == 1) 189 | { 190 | byte sparsePresenceFlag = (byte)bitStream.Read(1); 191 | ogg.WriteBit(sparsePresenceFlag); 192 | 193 | presentBool = sparsePresenceFlag == 1; 194 | } 195 | 196 | if (presentBool) 197 | { 198 | byte codewordLength = (byte)bitStream.Read(codewordLengthLength); 199 | ogg.BitWrite(codewordLength, 5); 200 | } 201 | } 202 | } 203 | 204 | byte lookupType = (byte)bitStream.Read(1); 205 | ogg.BitWrite(lookupType, 4); 206 | if (lookupType == 1) 207 | { 208 | ogg.BitWrite(bitStream.Read(32)); 209 | ogg.BitWrite(bitStream.Read(32)); 210 | byte valueLength = (byte)bitStream.Read(4); 211 | ogg.BitWrite(valueLength, 4); 212 | ogg.WriteBit((byte)bitStream.Read(1)); 213 | 214 | uint quantValues = QuantValues(entries, dimensions); 215 | for (int i = 0; i < quantValues; i++) 216 | { 217 | uint value = bitStream.Read(valueLength + 1); 218 | ogg.BitWrite(value, (byte)(valueLength + 1)); 219 | } 220 | } 221 | else if (lookupType != 0) 222 | { 223 | throw new Exception("There was an error copying a codebook"); 224 | } 225 | 226 | if (codebookSize != 0 && bitStream.TotalBitsRead / 8 + 1 != codebookSize) 227 | { 228 | throw new Exception("There was an error rebuilding a codebook"); 229 | } 230 | } 231 | 232 | internal byte[] GetCodebook(uint index) 233 | { 234 | if (this._codebookData == null || this._codebookOffsets == null) 235 | { 236 | throw new Exception("This Codebook Library is not initialized"); 237 | } 238 | 239 | if (index >= this.CodebookCount - 1) 240 | { 241 | return null; 242 | } 243 | 244 | return this._codebookData.ToList().GetRange((int)this._codebookOffsets[index], (int)GetCodebookSize(index)).ToArray(); 245 | } 246 | 247 | internal uint GetCodebookSize(uint index) 248 | { 249 | if (this._codebookData == null || this._codebookOffsets == null) 250 | { 251 | throw new Exception("This Codebook Library is not initialized"); 252 | } 253 | 254 | if (index >= this.CodebookCount - 1) 255 | { 256 | return 0xFFFFFFFF; 257 | } 258 | 259 | return this._codebookOffsets[index + 1] - this._codebookOffsets[index]; 260 | } 261 | 262 | //https://xiph.org/vorbis/doc/Vorbis_I_spec.pdf#subsubsection.9.2.1 263 | private uint ILog(uint value) 264 | { 265 | uint ret = 0; 266 | 267 | while (value != 0) 268 | { 269 | ret++; 270 | value >>= 1; 271 | } 272 | 273 | return ret; 274 | } 275 | 276 | private uint QuantValues(uint entries, uint dimensions) 277 | { 278 | uint bits = ILog(entries); 279 | uint values = entries >> (int)((bits - 1) * (dimensions - 1) / dimensions); 280 | 281 | while (true) 282 | { 283 | ulong acc = 1; 284 | ulong acc1 = 1; 285 | for (int i = 0; i < dimensions; i++) 286 | { 287 | acc *= values; 288 | acc1 *= values + 1; 289 | } 290 | if (acc <= entries && acc1 > entries) 291 | { 292 | return values; 293 | } 294 | else 295 | { 296 | if (acc > entries) 297 | { 298 | values--; 299 | } 300 | else 301 | { 302 | values++; 303 | } 304 | } 305 | } 306 | } 307 | } 308 | } 309 | -------------------------------------------------------------------------------- /WEMSharp/OggStream.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Text; 4 | 5 | namespace WEMSharp 6 | { 7 | internal class OggStream : BinaryWriter 8 | { 9 | private const uint HEADER_SIZE = 27; 10 | private const uint MAX_SEGMENTS = 255; 11 | private const uint SEGMENT_SIZE = 255; 12 | 13 | private byte _bitBuffer; 14 | private int _bitsStored; 15 | private uint _payloadBytes; 16 | private bool _first = true; 17 | private bool _continued; 18 | private byte[] _pageBuffer = new byte[HEADER_SIZE + MAX_SEGMENTS + SEGMENT_SIZE * MAX_SEGMENTS]; 19 | private uint _granule; 20 | private uint _sequenceNumber; 21 | 22 | internal OggStream(Stream file) : base(file) { } 23 | ~OggStream() 24 | { 25 | FlushPage(); 26 | } 27 | 28 | internal void WriteBit(byte bit) 29 | { 30 | if (bit == 1) 31 | { 32 | this._bitBuffer |= (byte)(1U << this._bitsStored); 33 | } 34 | 35 | this._bitsStored++; 36 | 37 | if (this._bitsStored == 8) 38 | { 39 | FlushBits(); 40 | } 41 | } 42 | 43 | internal void FlushBits() 44 | { 45 | if (this._bitsStored != 0) 46 | { 47 | if (this._payloadBytes == SEGMENT_SIZE * MAX_SEGMENTS) 48 | { 49 | throw new Exception("Ran out of space in an OGG packet"); 50 | } 51 | 52 | this._pageBuffer[HEADER_SIZE + MAX_SEGMENTS + this._payloadBytes] = this._bitBuffer; 53 | this._payloadBytes++; 54 | 55 | this._bitBuffer = 0; 56 | this._bitsStored = 0; 57 | } 58 | } 59 | 60 | internal void FlushPage(bool nextContinued = false, bool last = false) 61 | { 62 | if (this._payloadBytes != MAX_SEGMENTS * SEGMENT_SIZE) 63 | { 64 | FlushBits(); 65 | } 66 | 67 | if (this._payloadBytes != 0) 68 | { 69 | uint segments = (this._payloadBytes + SEGMENT_SIZE) / SEGMENT_SIZE; 70 | if (segments == MAX_SEGMENTS + 1) 71 | { 72 | segments = MAX_SEGMENTS; 73 | } 74 | 75 | for (int i = 0; i < this._payloadBytes; i++) 76 | { 77 | this._pageBuffer[HEADER_SIZE + segments + i] = this._pageBuffer[HEADER_SIZE + MAX_SEGMENTS + i]; 78 | } 79 | 80 | this._pageBuffer[0] = (byte)'O'; 81 | this._pageBuffer[1] = (byte)'g'; 82 | this._pageBuffer[2] = (byte)'g'; 83 | this._pageBuffer[3] = (byte)'S'; 84 | this._pageBuffer[4] = 0; 85 | this._pageBuffer[5] = (byte)((this._continued ? 1 : 0) | (this._first ? 2 : 0) | (last ? 4 : 0)); 86 | Buffer.BlockCopy(BitConverter.GetBytes(this._granule), 0, this._pageBuffer, 6, 4); 87 | 88 | if (this._granule == 0xFFFFFFFF) 89 | { 90 | this._pageBuffer[10] = 0xFF; 91 | this._pageBuffer[11] = 0xFF; 92 | this._pageBuffer[12] = 0xFF; 93 | this._pageBuffer[13] = 0xFF; 94 | } 95 | else 96 | { 97 | this._pageBuffer[10] = 0; 98 | this._pageBuffer[11] = 0; 99 | this._pageBuffer[12] = 0; 100 | this._pageBuffer[13] = 0; 101 | } 102 | 103 | this._pageBuffer[14] = 1; 104 | Buffer.BlockCopy(BitConverter.GetBytes(this._sequenceNumber), 0, this._pageBuffer, 18, 4); 105 | this._pageBuffer[22] = 0; 106 | this._pageBuffer[23] = 0; 107 | this._pageBuffer[24] = 0; 108 | this._pageBuffer[25] = 0; 109 | this._pageBuffer[26] = (byte)segments; 110 | 111 | for (uint i = 0, bytesLeft = this._payloadBytes; i < segments; i++) 112 | { 113 | if (bytesLeft >= SEGMENT_SIZE) 114 | { 115 | bytesLeft -= SEGMENT_SIZE; 116 | this._pageBuffer[27 + i] = (byte)SEGMENT_SIZE; 117 | } 118 | else 119 | { 120 | this._pageBuffer[27 + i] = (byte)bytesLeft; 121 | } 122 | } 123 | 124 | Buffer.BlockCopy(BitConverter.GetBytes(CRC32.Compute(this._pageBuffer, HEADER_SIZE + segments + this._payloadBytes)), 0, this._pageBuffer, 22, 4); 125 | 126 | for (int i = 0; i < HEADER_SIZE + segments + this._payloadBytes; i++) 127 | { 128 | Write(this._pageBuffer[i]); 129 | } 130 | 131 | this._sequenceNumber++; 132 | this._first = false; 133 | this._continued = nextContinued; 134 | this._payloadBytes = 0; 135 | } 136 | } 137 | 138 | internal void BitWrite(byte value, byte bitCount = 8) 139 | { 140 | BitWrite(value, (int)bitCount); 141 | } 142 | 143 | internal void BitWrite(ushort value, byte bitCount = 16) 144 | { 145 | BitWrite(value, (int)bitCount); 146 | } 147 | 148 | internal void BitWrite(uint value, byte bitCount = 32) 149 | { 150 | BitWrite(value, (int)bitCount); 151 | } 152 | 153 | private void BitWrite(uint value, int size) 154 | { 155 | for (int i = 0; i < size; i++) 156 | { 157 | WriteBit((value & (1 << i)) != 0 ? (byte)1 : (byte)0); 158 | } 159 | } 160 | 161 | internal void WriteVorbisHeader(byte type) 162 | { 163 | byte[] vorbisString = Encoding.UTF8.GetBytes("vorbis"); 164 | 165 | BitWrite(type); 166 | for (int i = 0; i < vorbisString.Length; i++) 167 | { 168 | BitWrite(vorbisString[i]); 169 | } 170 | } 171 | 172 | internal void SetGranule(uint granule) 173 | { 174 | this._granule = granule; 175 | } 176 | } 177 | } 178 | -------------------------------------------------------------------------------- /WEMSharp/Packet.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | 4 | namespace WEMSharp 5 | { 6 | internal struct Packet 7 | { 8 | private uint _offset; 9 | private ushort _size; 10 | private uint _absoluteGranule; 11 | private bool _noGranule; 12 | 13 | internal Packet(Stream stream, uint offset, bool noGranule = false) 14 | { 15 | this._offset = offset; 16 | this._size = 0xFFFF; 17 | this._absoluteGranule = 0; 18 | this._noGranule = noGranule; 19 | 20 | stream.Seek(this._offset, SeekOrigin.Begin); 21 | 22 | byte[] sizeBuffer = new byte[2]; 23 | stream.Read(sizeBuffer, 0, 2); 24 | this._size = BitConverter.ToUInt16(sizeBuffer, 0); 25 | 26 | if (!this._noGranule) 27 | { 28 | byte[] granuleBuffer = new byte[4]; 29 | stream.Read(granuleBuffer, 0, 4); 30 | this._absoluteGranule = BitConverter.ToUInt32(granuleBuffer, 0); 31 | } 32 | } 33 | 34 | internal uint GetHeaderSize() 35 | { 36 | return this._noGranule ? (uint)2 : 6; 37 | } 38 | 39 | internal uint GetOffset() 40 | { 41 | return GetHeaderSize() + this._offset; 42 | } 43 | 44 | internal ushort GetSize() 45 | { 46 | return this._size; 47 | } 48 | 49 | internal uint GetGranule() 50 | { 51 | return this._absoluteGranule; 52 | } 53 | 54 | internal uint NextOffset() 55 | { 56 | return this._offset + GetHeaderSize() + this._size; 57 | } 58 | } 59 | } 60 | -------------------------------------------------------------------------------- /WEMSharp/Packet8.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | 4 | namespace WEMSharp 5 | { 6 | internal struct Packet8 7 | { 8 | private uint _offset; 9 | private uint _size; 10 | private uint _absoluteGranule; 11 | 12 | internal Packet8(Stream stream, uint offset) 13 | { 14 | this._offset = offset; 15 | this._size = 0xFFFF; 16 | this._absoluteGranule = 0; 17 | 18 | stream.Seek(this._offset, SeekOrigin.Begin); 19 | 20 | byte[] sizeBuffer = new byte[4]; 21 | stream.Read(sizeBuffer, 0, 4); 22 | this._size = BitConverter.ToUInt32(sizeBuffer, 0); 23 | 24 | byte[] granuleBuffer = new byte[4]; 25 | stream.Read(granuleBuffer, 0, 4); 26 | this._absoluteGranule = BitConverter.ToUInt32(granuleBuffer, 0); 27 | } 28 | 29 | internal uint GetHeaderSize() 30 | { 31 | return 8; 32 | } 33 | 34 | internal uint GetOffset() 35 | { 36 | return GetHeaderSize() + this._offset; 37 | } 38 | 39 | internal uint GetSize() 40 | { 41 | return this._size; 42 | } 43 | 44 | internal uint GetGranule() 45 | { 46 | return this._absoluteGranule; 47 | } 48 | 49 | internal uint NextOffset() 50 | { 51 | return this._offset + GetHeaderSize() + this._size; 52 | } 53 | } 54 | } 55 | -------------------------------------------------------------------------------- /WEMSharp/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("WEMSharp")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("WEMSharp")] 13 | [assembly: AssemblyCopyright("Copyright © 2018")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("2edfd763-c9cf-459e-9227-afebcad33850")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /WEMSharp/WEMFile.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Linq; 4 | using System.Text; 5 | 6 | namespace WEMSharp 7 | { 8 | public class WEMFile 9 | { 10 | private FileStream _wemFile; 11 | 12 | private uint _fmtChunkOffset = 0xFFFFFFFF; 13 | private uint _fmtChunkSize = 0xFFFFFFFF; 14 | private uint _cueChunkOffset = 0xFFFFFFFF; 15 | private uint _cueChunkSize = 0xFFFFFFFF; 16 | private uint _listChunkOffset = 0xFFFFFFFF; 17 | private uint _listChunkSize = 0xFFFFFFFF; 18 | private uint _smplChunkOffset = 0xFFFFFFFF; 19 | private uint _smplChunkSize = 0xFFFFFFFF; 20 | private uint _vorbChunkOffset = 0xFFFFFFFF; 21 | private uint _vorbChunkSize = 0xFFFFFFFF; 22 | private uint _dataChunkOffset = 0xFFFFFFFF; 23 | private uint _dataChunkSize = 0xFFFFFFFF; 24 | 25 | /// 26 | /// Channel Count 27 | /// 28 | public ushort Channels { get; private set; } 29 | /// 30 | /// Sample Rate 31 | /// 32 | public uint SampleRate { get; private set; } 33 | public uint AverageBytesPerSecond { get; private set; } 34 | 35 | private uint _cueCount; 36 | private uint _loopCount; 37 | private uint _loopStart; 38 | private uint _loopEnd; 39 | private uint _sampleCount; 40 | private bool _noGranule; 41 | private bool _modPackets; 42 | private uint _setupPacketOffset; 43 | private uint _firstAudioPacketOffset; 44 | private bool _headerTriadPresent; 45 | private bool _oldPacketHeaders; 46 | private uint _uid; 47 | private byte _blocksize0Pow; 48 | private byte _blocksize1Pow; 49 | 50 | public WEMFile(string fileLocation, WEMForcePacketFormat forcePacketFormat) 51 | { 52 | this._wemFile = File.OpenRead(fileLocation); 53 | 54 | using (BinaryReader br = new BinaryReader(this._wemFile, Encoding.UTF8, true)) 55 | { 56 | string magic = Encoding.ASCII.GetString(br.ReadBytes(4)); 57 | if (magic != "RIFF") 58 | { 59 | throw new Exception("This is either not a WEM file or is of an unsupported type"); 60 | } 61 | 62 | uint riffSize = br.ReadUInt32() + 8; 63 | 64 | string waveMagic = Encoding.ASCII.GetString(br.ReadBytes(4)); 65 | if (waveMagic != "WAVE") 66 | { 67 | throw new Exception("Missing WAVE magic"); 68 | } 69 | 70 | uint chunkOffset = 12; 71 | while (chunkOffset < riffSize) 72 | { 73 | br.BaseStream.Seek(chunkOffset, SeekOrigin.Begin); 74 | 75 | string chunkName = Encoding.ASCII.GetString(br.ReadBytes(4)); 76 | uint chunkSize = br.ReadUInt32(); 77 | 78 | if (chunkName.Substring(0, 3) == "fmt") 79 | { 80 | this._fmtChunkOffset = chunkOffset + 8; 81 | this._fmtChunkSize = chunkSize; 82 | } 83 | else if (chunkName.Substring(0, 3) == "cue") 84 | { 85 | this._cueChunkOffset = chunkOffset + 8; 86 | this._cueChunkSize = chunkSize; 87 | } 88 | else if (chunkName == "LIST") 89 | { 90 | this._listChunkOffset = chunkOffset + 8; 91 | this._listChunkSize = chunkSize; 92 | } 93 | else if (chunkName == "smpl") 94 | { 95 | this._smplChunkOffset = chunkOffset + 8; 96 | this._smplChunkSize = chunkSize; 97 | } 98 | else if (chunkName == "vorb") 99 | { 100 | this._vorbChunkOffset = chunkOffset + 8; 101 | this._vorbChunkSize = chunkSize; 102 | } 103 | else if (chunkName == "data") 104 | { 105 | this._dataChunkOffset = chunkOffset + 8; 106 | this._dataChunkSize = chunkSize; 107 | } 108 | 109 | chunkOffset += chunkSize + 8; 110 | } 111 | 112 | if (chunkOffset > riffSize) 113 | { 114 | throw new Exception("There was an error reading the file"); 115 | } 116 | 117 | if (this._fmtChunkOffset == 0xFFFFFFFF && this._dataChunkOffset == 0xFFFFFFFF) 118 | { 119 | throw new Exception("There was an error reading the file"); 120 | } 121 | 122 | //Read FMT Chunk 123 | if (this._vorbChunkOffset == 0xFFFFFFFF && this._fmtChunkSize != 0x42) 124 | { 125 | throw new Exception("There was an error reading the file"); 126 | } 127 | if (this._vorbChunkOffset != 0xFFFFFFFF && this._fmtChunkSize != 0x28 && this._fmtChunkSize != 0x18 && this._fmtChunkSize != 0x12) 128 | { 129 | throw new Exception("There was an error reading the file"); 130 | } 131 | if (this._vorbChunkOffset == 0xFFFFFFFF && this._fmtChunkSize == 0x42) 132 | { 133 | this._vorbChunkOffset = this._fmtChunkOffset + 0x18; 134 | } 135 | 136 | br.BaseStream.Seek(this._fmtChunkOffset, SeekOrigin.Begin); 137 | 138 | ushort codecID = br.ReadUInt16(); 139 | if (codecID != 0xFFFF) 140 | { 141 | throw new Exception("FMT Chunk - Wrong Codec ID"); 142 | } 143 | 144 | this.Channels = br.ReadUInt16(); 145 | this.SampleRate = br.ReadUInt32(); 146 | this.AverageBytesPerSecond = br.ReadUInt32(); 147 | 148 | ushort blockAlign = br.ReadUInt16(); 149 | if (blockAlign != 0) 150 | { 151 | throw new Exception("FMT Chunk - Wrong Block Align"); 152 | } 153 | 154 | ushort bitsPerSample = br.ReadUInt16(); 155 | if (bitsPerSample != 0) 156 | { 157 | throw new Exception("FMT Chunk - Wrong Bits Per Sample"); 158 | } 159 | 160 | ushort extraFmtLength = br.ReadUInt16(); 161 | if (extraFmtLength != (this._fmtChunkSize - 0x12)) 162 | { 163 | throw new Exception("FMT Chunk - Wrong Extra FMT Chunk Size"); 164 | } 165 | 166 | if (this._fmtChunkSize == 0x28) 167 | { 168 | byte[] unknownBufferCheck = new byte[] { 1, 0, 0, 0, 0, 0, 0x10, 0, 0x80, 0, 0, 0xAA, 0, 0x38, 0x9b, 0x71 }; 169 | byte[] unknownBuffer; 170 | 171 | unknownBuffer = br.ReadBytes(16); 172 | 173 | if (unknownBuffer.SequenceEqual(unknownBufferCheck)) 174 | { 175 | throw new Exception("FMT Chunk - Wrong Unknown Buffer Signature"); 176 | } 177 | } 178 | 179 | //Read CUE Chunk 180 | if (this._cueChunkOffset != 0xFFFFFFFF) 181 | { 182 | br.BaseStream.Seek(this._cueChunkOffset, SeekOrigin.Begin); 183 | 184 | this._cueCount = br.ReadUInt32(); 185 | } 186 | 187 | //Read SMPL Chunk 188 | if (this._smplChunkOffset != 0xFFFFFFFF) 189 | { 190 | br.BaseStream.Seek(this._smplChunkOffset, SeekOrigin.Begin); 191 | 192 | this._loopCount = br.ReadUInt32(); 193 | if (this._loopCount != 1) 194 | { 195 | throw new Exception("SMPL Chunk - Wrong Loop Count"); 196 | } 197 | 198 | br.BaseStream.Seek(this._smplChunkOffset + 0x2C, SeekOrigin.Begin); 199 | 200 | this._loopStart = br.ReadUInt32(); 201 | this._loopEnd = br.ReadUInt32(); 202 | } 203 | 204 | //Read VORB Chunk 205 | switch (this._vorbChunkSize) 206 | { 207 | case 0xFFFFFFFF: 208 | case 0x28: 209 | case 0x2A: 210 | case 0x2C: 211 | case 0x32: 212 | case 0x34: 213 | br.BaseStream.Seek(this._vorbChunkOffset, SeekOrigin.Begin); 214 | break; 215 | default: 216 | throw new Exception("VORB Chunk - Wrong VORB Chunk Size"); 217 | } 218 | 219 | this._sampleCount = br.ReadUInt32(); 220 | 221 | switch (this._vorbChunkSize) 222 | { 223 | case 0xFFFFFFFF: 224 | case 0x2A: 225 | { 226 | this._noGranule = true; 227 | 228 | br.BaseStream.Seek(this._vorbChunkOffset + 4, SeekOrigin.Begin); 229 | 230 | uint modSignal = br.ReadUInt32(); 231 | 232 | if (modSignal != 0x4A && modSignal != 0x4B && modSignal != 0x69 && modSignal != 0x70) 233 | { 234 | this._modPackets = true; 235 | } 236 | 237 | br.BaseStream.Seek(this._vorbChunkOffset + 0x10, SeekOrigin.Begin); 238 | 239 | break; 240 | } 241 | 242 | default: 243 | br.BaseStream.Seek(this._vorbChunkOffset + 0x18, SeekOrigin.Begin); 244 | break; 245 | } 246 | 247 | if (forcePacketFormat == WEMForcePacketFormat.ForceNoModPackets) 248 | { 249 | this._modPackets = false; 250 | } 251 | else if (forcePacketFormat == WEMForcePacketFormat.ForceModPackets) 252 | { 253 | this._modPackets = true; 254 | } 255 | 256 | this._setupPacketOffset = br.ReadUInt32(); 257 | this._firstAudioPacketOffset = br.ReadUInt32(); 258 | 259 | switch (this._vorbChunkSize) 260 | { 261 | case 0xFFFFFFFF: 262 | case 0x2A: 263 | br.BaseStream.Seek(this._vorbChunkOffset + 0x24, SeekOrigin.Begin); 264 | break; 265 | 266 | case 0x32: 267 | case 0x34: 268 | br.BaseStream.Seek(this._vorbChunkOffset + 0x2C, SeekOrigin.Begin); 269 | break; 270 | } 271 | 272 | switch (this._vorbChunkSize) 273 | { 274 | case 0x28: 275 | case 0x2C: 276 | this._headerTriadPresent = true; 277 | this._oldPacketHeaders = true; 278 | break; 279 | 280 | case 0xFFFFFFFF: 281 | case 0x2A: 282 | case 0x32: 283 | case 0x34: 284 | this._uid = br.ReadUInt32(); 285 | this._blocksize0Pow = br.ReadByte(); 286 | this._blocksize1Pow = br.ReadByte(); 287 | break; 288 | } 289 | 290 | if (this._loopCount != 0) 291 | { 292 | if (this._loopEnd == 0) 293 | { 294 | this._loopEnd = this._sampleCount; 295 | } 296 | else 297 | { 298 | this._loopEnd++; 299 | } 300 | 301 | if (this._loopStart >= this._sampleCount || this._loopEnd > this._sampleCount || this._loopStart > this._loopEnd) 302 | { 303 | throw new Exception("Loops out of range"); 304 | } 305 | } 306 | } 307 | } 308 | 309 | public void GenerateOGG(string fileLocation, string codebooksLocation, bool inlineCodebooks, bool fullSetup) 310 | { 311 | if (inlineCodebooks && string.IsNullOrEmpty(codebooksLocation)) 312 | { 313 | throw new ArgumentException("Only one of Inline Codebooks or Codebooks Location can be set"); 314 | } 315 | else if (!inlineCodebooks && string.IsNullOrEmpty(codebooksLocation)) 316 | { 317 | throw new ArgumentException("Either Inline Codebooks or Codebooks Location must be set"); 318 | } 319 | 320 | using (OggStream ogg = new OggStream(File.Create(fileLocation))) 321 | { 322 | bool[] modeBlockFlag = null; 323 | uint modeBits = 0; 324 | bool previousBlockFlag = false; 325 | 326 | if (this._headerTriadPresent) 327 | { 328 | GenerateOGGHeaderTriad(ogg); 329 | } 330 | else 331 | { 332 | GenerateOGGHeader(ogg, codebooksLocation, inlineCodebooks, fullSetup, ref modeBlockFlag, ref modeBits); 333 | } 334 | 335 | { 336 | uint offset = this._dataChunkOffset + this._firstAudioPacketOffset; 337 | 338 | while (offset < this._dataChunkOffset + this._dataChunkSize) 339 | { 340 | uint size; 341 | uint granule; 342 | uint packetHeaderSize; 343 | uint packetPayloadOffset; 344 | uint nextOffset; 345 | 346 | if (this._oldPacketHeaders) 347 | { 348 | Packet8 audioPacket = new Packet8(this._wemFile, offset); 349 | packetHeaderSize = audioPacket.GetHeaderSize(); 350 | size = audioPacket.GetSize(); 351 | packetPayloadOffset = audioPacket.GetOffset(); 352 | granule = audioPacket.GetGranule(); 353 | nextOffset = audioPacket.NextOffset(); 354 | } 355 | else 356 | { 357 | Packet audioPacket = new Packet(this._wemFile, offset, this._noGranule); 358 | packetHeaderSize = audioPacket.GetHeaderSize(); 359 | size = audioPacket.GetSize(); 360 | packetPayloadOffset = audioPacket.GetOffset(); 361 | granule = audioPacket.GetGranule(); 362 | nextOffset = audioPacket.NextOffset(); 363 | } 364 | 365 | if (offset + packetHeaderSize > this._dataChunkOffset + this._dataChunkSize) 366 | { 367 | throw new Exception("There was an error generating a vorbis packet"); 368 | } 369 | 370 | offset = packetPayloadOffset; 371 | 372 | this._wemFile.Seek(offset, SeekOrigin.Begin); 373 | 374 | if (granule == 0xFFFFFFFF) 375 | { 376 | ogg.SetGranule(1); 377 | } 378 | else 379 | { 380 | ogg.SetGranule(granule); 381 | } 382 | 383 | if (this._modPackets) 384 | { 385 | if (modeBlockFlag == null) 386 | { 387 | throw new Exception("There was an error generating a vorbis packet"); 388 | } 389 | 390 | byte packetType = 0; 391 | ogg.WriteBit(packetType); 392 | 393 | uint modeNumber = 0; 394 | uint remainder = 0; 395 | 396 | { 397 | BitStream bitStream = new BitStream(this._wemFile); 398 | 399 | modeNumber = bitStream.Read((int)modeBits); 400 | ogg.BitWrite(modeNumber, (byte)modeBits); 401 | 402 | remainder = bitStream.Read(8 - (int)modeBits); 403 | } 404 | 405 | if (modeBlockFlag[modeNumber]) 406 | { 407 | this._wemFile.Seek(nextOffset, SeekOrigin.Begin); 408 | 409 | bool nextBlockFlag = false; 410 | if (nextOffset + packetHeaderSize <= this._dataChunkOffset + this._dataChunkSize) 411 | { 412 | Packet audioPacket = new Packet(this._wemFile, nextOffset, this._noGranule); 413 | uint nextPacketSize = audioPacket.GetSize(); 414 | 415 | if (nextPacketSize != 0xFFFFFFFF) 416 | { 417 | this._wemFile.Seek(audioPacket.GetOffset(), SeekOrigin.Begin); 418 | 419 | BitStream bitStream = new BitStream(this._wemFile); 420 | uint nextModeNumber = bitStream.Read((int)modeBits); 421 | 422 | nextBlockFlag = modeBlockFlag[nextModeNumber]; 423 | } 424 | } 425 | 426 | byte previousWindowType = previousBlockFlag ? (byte)1 : (byte)0; 427 | ogg.WriteBit(previousWindowType); 428 | 429 | byte nextWindowType = previousBlockFlag ? (byte)1 : (byte)0; 430 | ogg.WriteBit(nextWindowType); 431 | 432 | this._wemFile.Seek(offset + 1, SeekOrigin.Begin); 433 | } 434 | 435 | previousBlockFlag = modeBlockFlag[modeNumber]; 436 | ogg.BitWrite(remainder, (byte)(8 - modeBits)); 437 | } 438 | else 439 | { 440 | int b = this._wemFile.ReadByte(); 441 | if (b < 0) 442 | { 443 | throw new Exception("There was an error generating a vorbis packet"); 444 | } 445 | 446 | ogg.BitWrite((byte)b); 447 | } 448 | 449 | for (int i = 1; i < size; i++) 450 | { 451 | int b = this._wemFile.ReadByte(); 452 | if (b < 0) 453 | { 454 | throw new Exception("There was an error generating a vorbis packet"); 455 | } 456 | 457 | ogg.BitWrite((byte)b); 458 | } 459 | 460 | offset = nextOffset; 461 | ogg.FlushPage(false, (offset == this._dataChunkOffset + this._dataChunkSize)); 462 | } 463 | 464 | if (offset > this._dataChunkOffset + this._dataChunkSize) 465 | { 466 | throw new Exception("There was an error while creating the OGG file"); 467 | } 468 | } 469 | } 470 | } 471 | 472 | private void GenerateOGGHeaderTriad(OggStream ogg) 473 | { 474 | uint offset = this._dataChunkOffset + this._setupPacketOffset; 475 | 476 | //Information Packet 477 | { 478 | Packet8 informationPacket = new Packet8(this._wemFile, offset); 479 | uint informationPacketSize = informationPacket.GetSize(); 480 | 481 | if (informationPacket.GetGranule() != 0) 482 | { 483 | throw new Exception("There was an error while creating the header"); 484 | } 485 | 486 | this._wemFile.Seek(informationPacket.GetOffset(), SeekOrigin.Begin); 487 | 488 | byte[] informationPacketType = new byte[1]; 489 | this._wemFile.Read(informationPacketType, 0, 1); 490 | if (informationPacketType[0] != 1) 491 | { 492 | throw new Exception("There was an error while creating the header"); 493 | } 494 | ogg.BitWrite(informationPacketType[0]); 495 | 496 | byte[] b = new byte[1]; 497 | for (int i = 0; i < informationPacketSize; i++) 498 | { 499 | this._wemFile.Read(b, 0, 1); 500 | ogg.BitWrite(b[0]); 501 | } 502 | 503 | ogg.FlushPage(); 504 | offset = informationPacket.NextOffset(); 505 | } 506 | 507 | //Comment Packet 508 | { 509 | Packet8 commentPacket = new Packet8(this._wemFile, offset); 510 | uint commentPacketSize = commentPacket.GetSize(); 511 | 512 | if (commentPacket.GetGranule() != 0) 513 | { 514 | throw new Exception("There was an error while creating the header"); 515 | } 516 | 517 | this._wemFile.Seek(commentPacket.GetOffset(), SeekOrigin.Begin); 518 | 519 | byte[] commentPacketType = new byte[1]; 520 | this._wemFile.Read(commentPacketType, 0, 1); 521 | if (commentPacketType[0] != 3) 522 | { 523 | throw new Exception("There was an error while creating the header"); 524 | } 525 | ogg.BitWrite(commentPacketType[0]); 526 | 527 | byte[] b = new byte[1]; 528 | for (int i = 0; i < commentPacketSize; i++) 529 | { 530 | this._wemFile.Read(b, 0, 1); 531 | ogg.BitWrite(b[0]); 532 | } 533 | 534 | ogg.FlushPage(); 535 | offset = commentPacket.NextOffset(); 536 | } 537 | 538 | //Setup Packet 539 | { 540 | Packet8 setupPacket = new Packet8(this._wemFile, offset); 541 | this._wemFile.Seek(setupPacket.GetOffset(), SeekOrigin.Begin); 542 | 543 | if (setupPacket.GetGranule() != 0) 544 | { 545 | throw new Exception("There was an error while creating the header"); 546 | } 547 | 548 | BitStream bitStream = new BitStream(this._wemFile); 549 | byte setupPacketType = (byte)bitStream.Read(8); 550 | if (setupPacketType != 5) 551 | { 552 | throw new Exception("There was an error while creating the header"); 553 | } 554 | ogg.BitWrite(setupPacketType); 555 | 556 | for (int i = 0; i < 6; i++) 557 | { 558 | ogg.BitWrite((byte)bitStream.Read(8)); 559 | } 560 | 561 | byte codebookCount = (byte)bitStream.Read(8); 562 | ogg.BitWrite(codebookCount); 563 | codebookCount++; 564 | 565 | CodebookLibrary codebook = new CodebookLibrary(); 566 | for (int i = 0; i < codebookCount; i++) 567 | { 568 | codebook.Copy(bitStream, ogg); 569 | } 570 | 571 | while (bitStream.TotalBitsRead < setupPacket.GetSize() * 8) 572 | { 573 | ogg.WriteBit((byte)bitStream.Read(1)); 574 | } 575 | 576 | ogg.FlushPage(); 577 | offset = setupPacket.NextOffset(); 578 | } 579 | 580 | if (offset != this._dataChunkOffset + this._firstAudioPacketOffset) 581 | { 582 | throw new Exception("There was an error while creating the header"); 583 | } 584 | } 585 | 586 | private void GenerateOGGHeader(OggStream ogg, string codebooksLocation, bool inlineCodebooks, bool fullSetup, ref bool[] modeBlockFlag, ref uint modeBits) 587 | { 588 | ogg.WriteVorbisHeader(1); 589 | ogg.BitWrite((uint)0); 590 | ogg.BitWrite((byte)this.Channels); 591 | ogg.BitWrite(this.SampleRate); 592 | ogg.BitWrite((uint)0); 593 | ogg.BitWrite(this.AverageBytesPerSecond * 8); 594 | ogg.BitWrite((uint)0); 595 | ogg.BitWrite(this._blocksize0Pow, 4); 596 | ogg.BitWrite(this._blocksize1Pow, 4); 597 | ogg.WriteBit(1); 598 | ogg.FlushPage(); 599 | 600 | //Comment Packet 601 | { 602 | ogg.WriteVorbisHeader(3); 603 | 604 | byte[] vendor = Encoding.UTF8.GetBytes("Converted from Audiokinetic Wwise by WEMSharp"); 605 | ogg.BitWrite((uint)vendor.Length); 606 | for (int i = 0; i < vendor.Length; i++) 607 | { 608 | ogg.BitWrite(vendor[i]); 609 | } 610 | 611 | if (this._loopCount == 0) 612 | { 613 | ogg.BitWrite((uint)0); 614 | } 615 | else 616 | { 617 | ogg.BitWrite((uint)2); 618 | 619 | byte[] loopStart = Encoding.UTF8.GetBytes("LoopStart=" + this._loopStart.ToString()); 620 | ogg.BitWrite((uint)loopStart.Length); 621 | for (int i = 0; i < loopStart.Length; i++) 622 | { 623 | ogg.BitWrite(loopStart[i]); 624 | } 625 | 626 | byte[] loopEnd = Encoding.UTF8.GetBytes("LoopEnd=" + this._loopEnd.ToString()); 627 | ogg.BitWrite((uint)loopEnd.Length); 628 | for (int i = 0; i < loopEnd.Length; i++) 629 | { 630 | ogg.BitWrite(loopEnd[i]); 631 | } 632 | } 633 | 634 | ogg.WriteBit(1); 635 | ogg.FlushPage(); 636 | } 637 | 638 | //Setup Packet 639 | { 640 | ogg.WriteVorbisHeader(5); 641 | 642 | Packet setupPacket = new Packet(this._wemFile, this._dataChunkOffset + this._setupPacketOffset, this._noGranule); 643 | 644 | this._wemFile.Seek(setupPacket.GetOffset(), SeekOrigin.Begin); 645 | 646 | if (setupPacket.GetGranule() != 0) 647 | { 648 | throw new Exception("There was an error generating a vorbis packet"); 649 | } 650 | 651 | BitStream bitStream = new BitStream(this._wemFile); 652 | 653 | uint codebookCount = bitStream.Read(8); 654 | ogg.BitWrite((byte)codebookCount); 655 | codebookCount++; 656 | 657 | if (inlineCodebooks) 658 | { 659 | CodebookLibrary codebook = new CodebookLibrary(); 660 | 661 | for (int i = 0; i < codebookCount; i++) 662 | { 663 | if (fullSetup) 664 | { 665 | codebook.Copy(bitStream, ogg); 666 | } 667 | else 668 | { 669 | codebook.Rebuild(bitStream, 0, ogg); 670 | } 671 | } 672 | } 673 | else 674 | { 675 | CodebookLibrary codebook = new CodebookLibrary(codebooksLocation); 676 | 677 | for (int i = 0; i < codebookCount; i++) 678 | { 679 | ushort codebookID = (ushort)bitStream.Read(10); 680 | codebook.Rebuild(codebookID, ogg); 681 | } 682 | } 683 | 684 | byte timeCountLess1 = 0; 685 | ushort dummyTimeValue = 0; 686 | ogg.BitWrite(timeCountLess1, 6); 687 | ogg.BitWrite(dummyTimeValue); 688 | 689 | if (fullSetup) 690 | { 691 | while (bitStream.TotalBitsRead < setupPacket.GetSize() * 8U) 692 | { 693 | ogg.WriteBit((byte)bitStream.Read(1)); 694 | } 695 | } 696 | else 697 | { 698 | byte floorCount = (byte)bitStream.Read(6); 699 | ogg.BitWrite(floorCount, 6); 700 | floorCount++; 701 | 702 | for (int i = 0; i < floorCount; i++) 703 | { 704 | ushort floorType = 1; 705 | ogg.BitWrite(floorType); 706 | 707 | byte floor1Partitions = (byte)bitStream.Read(5); 708 | ogg.BitWrite(floor1Partitions, 5); 709 | 710 | uint[] floor1PartitionClassList = new uint[floor1Partitions]; 711 | uint maximumClass = 0; 712 | for (int j = 0; j < floor1Partitions; j++) 713 | { 714 | byte floor1PartitionClass = (byte)bitStream.Read(4); 715 | ogg.BitWrite(floor1PartitionClass, 4); 716 | 717 | floor1PartitionClassList[j] = floor1PartitionClass; 718 | 719 | if (floor1PartitionClass > maximumClass) 720 | { 721 | maximumClass = floor1PartitionClass; 722 | } 723 | } 724 | 725 | uint[] floor1ClassDimensionList = new uint[maximumClass + 1]; 726 | for (int j = 0; j <= maximumClass; j++) 727 | { 728 | byte classDimension = (byte)bitStream.Read(3); 729 | ogg.BitWrite(classDimension, 3); 730 | 731 | floor1ClassDimensionList[j] = classDimension + 1U; 732 | 733 | byte classSubclasses = (byte)bitStream.Read(2); 734 | ogg.BitWrite(classSubclasses, 2); 735 | 736 | if (classSubclasses != 0) 737 | { 738 | byte masterbook = (byte)bitStream.Read(8); 739 | ogg.BitWrite(masterbook); 740 | 741 | if (maximumClass >= codebookCount) 742 | { 743 | throw new Exception("There was an error generating a vorbis packet."); 744 | } 745 | } 746 | 747 | for (int k = 0; k < (1 << classSubclasses); k++) 748 | { 749 | byte subclassBook = (byte)bitStream.Read(8); 750 | ogg.BitWrite(subclassBook); 751 | 752 | if ((subclassBook - 1) >= 0 && (subclassBook - 1) >= codebookCount) 753 | { 754 | throw new Exception("There was an error generating a vorbis packet."); 755 | } 756 | } 757 | } 758 | 759 | byte floor1Multiplier = (byte)bitStream.Read(2); 760 | ogg.BitWrite(floor1Multiplier, 2); 761 | 762 | byte rangeBits = (byte)bitStream.Read(4); 763 | ogg.BitWrite(rangeBits, 4); 764 | 765 | for (int j = 0; j < floor1Partitions; j++) 766 | { 767 | uint currentClassNumber = floor1PartitionClassList[j]; 768 | for (int k = 0; k < floor1ClassDimensionList[currentClassNumber]; k++) 769 | { 770 | ogg.BitWrite(bitStream.Read(rangeBits), rangeBits); 771 | } 772 | } 773 | } 774 | 775 | byte residueCount = (byte)bitStream.Read(6); 776 | ogg.BitWrite(residueCount, 6); 777 | residueCount++; 778 | 779 | for (int i = 0; i < residueCount; i++) 780 | { 781 | byte residueType = (byte)bitStream.Read(2); 782 | ogg.BitWrite((ushort)residueType); 783 | 784 | if (residueType > 2) 785 | { 786 | throw new Exception("There was an error generating a vorbis packet."); 787 | } 788 | 789 | uint residueBegin = bitStream.Read(24); 790 | uint residueEnd = bitStream.Read(24); 791 | uint residuePartitionSize = bitStream.Read(24); 792 | byte residueClassifications = (byte)bitStream.Read(6); 793 | byte residueClassbook = (byte)bitStream.Read(8); 794 | 795 | ogg.BitWrite(residueBegin, 24); 796 | ogg.BitWrite(residueEnd, 24); 797 | ogg.BitWrite(residuePartitionSize, 24); 798 | ogg.BitWrite(residueClassifications, 6); 799 | ogg.BitWrite(residueClassbook, 8); 800 | 801 | residueClassifications++; 802 | 803 | if (residueClassbook >= codebookCount) 804 | { 805 | throw new Exception("There was an error generating a vorbis packet."); 806 | } 807 | 808 | uint[] residueCascade = new uint[residueClassifications]; 809 | for (int j = 0; j < residueClassifications; j++) 810 | { 811 | byte highBits = 0; 812 | byte lowBits = (byte)bitStream.Read(3); 813 | 814 | ogg.BitWrite(lowBits, 3); 815 | 816 | byte bitFlag = (byte)bitStream.Read(1); 817 | ogg.WriteBit(bitFlag); 818 | 819 | if (bitFlag == 1) 820 | { 821 | highBits = (byte)bitStream.Read(5); 822 | ogg.BitWrite(highBits, 5); 823 | } 824 | 825 | residueCascade[j] = highBits * 8U + lowBits; 826 | } 827 | 828 | for (int j = 0; j < residueClassifications; j++) 829 | { 830 | for (int k = 0; k < 8; k++) 831 | { 832 | if ((residueCascade[j] & (1 << k)) != 0) 833 | { 834 | byte residueBook = (byte)bitStream.Read(8); 835 | ogg.BitWrite(residueBook); 836 | 837 | if (residueBook >= codebookCount) 838 | { 839 | throw new Exception("There was an error generating a vorbis packet."); 840 | } 841 | } 842 | } 843 | } 844 | } 845 | 846 | byte mappingCount = (byte)bitStream.Read(6); 847 | ogg.BitWrite(mappingCount, 6); 848 | mappingCount++; 849 | 850 | for (int i = 0; i < mappingCount; i++) 851 | { 852 | ushort mappingType = 0; 853 | ogg.BitWrite(mappingType); 854 | 855 | byte submapsFlag = (byte)bitStream.Read(1); 856 | ogg.WriteBit(submapsFlag); 857 | 858 | uint submaps = 1; 859 | if (submapsFlag == 1) 860 | { 861 | byte submapsLess = (byte)bitStream.Read(4); 862 | submaps = submapsLess + 1U; 863 | ogg.BitWrite(submapsLess, 4); 864 | } 865 | 866 | byte squarePolarFlag = (byte)bitStream.Read(1); 867 | ogg.WriteBit(squarePolarFlag); 868 | 869 | if (squarePolarFlag == 1) 870 | { 871 | byte couplingSteps = (byte)bitStream.Read(8); 872 | ogg.BitWrite(couplingSteps); 873 | couplingSteps++; 874 | 875 | for (int j = 0; j < couplingSteps; j++) 876 | { 877 | uint magnitude = bitStream.Read((int)ILog(this.Channels - 1U)); 878 | uint angle = bitStream.Read((int)ILog(this.Channels - 1U)); 879 | 880 | ogg.BitWrite(magnitude, (byte)ILog(this.Channels - 1U)); 881 | ogg.BitWrite(angle, (byte)ILog(this.Channels - 1U)); 882 | 883 | if (angle == magnitude || magnitude >= this.Channels || angle >= this.Channels) 884 | { 885 | throw new Exception("There was an error generating a vorbis packet."); 886 | } 887 | } 888 | } 889 | 890 | byte mappingReserved = (byte)bitStream.Read(2); 891 | ogg.BitWrite(mappingReserved, 2); 892 | 893 | if (mappingReserved != 0) 894 | { 895 | throw new Exception("There was an error generating a vorbis packet."); 896 | } 897 | 898 | if (submaps > 1) 899 | { 900 | for (int j = 0; j < this.Channels; j++) 901 | { 902 | byte mappingMux = (byte)bitStream.Read(4); 903 | ogg.BitWrite(mappingMux, 4); 904 | 905 | if (mappingMux >= submaps) 906 | { 907 | throw new Exception("There was an error generating a vorbis packet."); 908 | } 909 | } 910 | } 911 | 912 | for (int j = 0; j < submaps; j++) 913 | { 914 | byte timeConfig = (byte)bitStream.Read(8); 915 | ogg.BitWrite(timeConfig); 916 | 917 | byte floorNumber = (byte)bitStream.Read(8); 918 | ogg.BitWrite(floorNumber); 919 | if (floorNumber >= floorCount) 920 | { 921 | throw new Exception("There was an error generating a vorbis packet."); 922 | } 923 | 924 | byte residueNumber = (byte)bitStream.Read(8); 925 | ogg.BitWrite(residueNumber); 926 | if (residueNumber >= residueCount) 927 | { 928 | throw new Exception("There was an error generating a vorbis packet."); 929 | } 930 | } 931 | } 932 | 933 | byte modeCount = (byte)bitStream.Read(6); 934 | ogg.BitWrite(modeCount, 6); 935 | modeCount++; 936 | 937 | modeBlockFlag = new bool[modeCount]; 938 | modeBits = ILog(modeCount - 1U); 939 | 940 | for (int i = 0; i < modeCount; i++) 941 | { 942 | byte blockFlag = (byte)bitStream.Read(1); 943 | ogg.WriteBit(blockFlag); 944 | 945 | modeBlockFlag[i] = blockFlag == 1; 946 | 947 | ushort windowType = 0; 948 | ushort transformType = 0; 949 | ogg.BitWrite(windowType); 950 | ogg.BitWrite(transformType); 951 | 952 | byte mapping = (byte)bitStream.Read(8); 953 | ogg.BitWrite(mapping, 8); 954 | 955 | if (mapping >= mappingCount) 956 | { 957 | throw new Exception("There was an error generating a vorbis packet."); 958 | } 959 | } 960 | 961 | ogg.WriteBit(1); 962 | } 963 | 964 | ogg.FlushPage(); 965 | 966 | if ((bitStream.TotalBitsRead + 7) / 8 != setupPacket.GetSize()) 967 | { 968 | throw new Exception("There was an error generating a vorbis packet."); 969 | } 970 | 971 | if (setupPacket.NextOffset() != this._dataChunkOffset + this._firstAudioPacketOffset) 972 | { 973 | throw new Exception("There was an error generating a vorbis packet."); 974 | } 975 | } 976 | } 977 | 978 | //https://xiph.org/vorbis/doc/Vorbis_I_spec.pdf#subsubsection.9.2.1 979 | private uint ILog(uint value) 980 | { 981 | uint ret = 0; 982 | 983 | while (value != 0) 984 | { 985 | ret++; 986 | value >>= 1; 987 | } 988 | 989 | return ret; 990 | } 991 | } 992 | 993 | /// 994 | /// Forcing of the OGG Packet Format 995 | /// 996 | public enum WEMForcePacketFormat 997 | { 998 | /// 999 | /// Uses the original Mod Packet Format from the WEM file 1000 | /// 1001 | NoForcePacketFormat, 1002 | /// 1003 | /// Forces to modify the original packets 1004 | /// 1005 | ForceModPackets, 1006 | /// 1007 | /// Forces to not modify the original packets 1008 | /// 1009 | ForceNoModPackets 1010 | } 1011 | } -------------------------------------------------------------------------------- /WEMSharp/WEMSharp.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {2EDFD763-C9CF-459E-9227-AFEBCAD33850} 8 | Library 9 | Properties 10 | WEMSharp 11 | WEMSharp 12 | v4.6.2 13 | 512 14 | 15 | 16 | true 17 | full 18 | false 19 | bin\Debug\ 20 | DEBUG;TRACE 21 | prompt 22 | 4 23 | 24 | 25 | pdbonly 26 | true 27 | bin\Release\ 28 | TRACE 29 | prompt 30 | 4 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | -------------------------------------------------------------------------------- /WEMSharpTests/App.config: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /WEMSharpTests/Program.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Text; 5 | using System.Threading.Tasks; 6 | using WEMSharp; 7 | 8 | namespace WEMSharpTests 9 | { 10 | class Program 11 | { 12 | static void Main(string[] args) 13 | { 14 | WEMFile wem = new WEMFile("LoL_MUSIC_TreelineINTRO.wem", WEMForcePacketFormat.NoForcePacketFormat); 15 | wem.GenerateOGG("LoL_MUSIC_TreelineINTRO.ogg", "packed_codebooks_aoTuV_603.bin", false, false); 16 | } 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /WEMSharpTests/Properties/AssemblyInfo.cs: -------------------------------------------------------------------------------- 1 | using System.Reflection; 2 | using System.Runtime.CompilerServices; 3 | using System.Runtime.InteropServices; 4 | 5 | // General Information about an assembly is controlled through the following 6 | // set of attributes. Change these attribute values to modify the information 7 | // associated with an assembly. 8 | [assembly: AssemblyTitle("WEMSharpTests")] 9 | [assembly: AssemblyDescription("")] 10 | [assembly: AssemblyConfiguration("")] 11 | [assembly: AssemblyCompany("")] 12 | [assembly: AssemblyProduct("WEMSharpTests")] 13 | [assembly: AssemblyCopyright("Copyright © 2018")] 14 | [assembly: AssemblyTrademark("")] 15 | [assembly: AssemblyCulture("")] 16 | 17 | // Setting ComVisible to false makes the types in this assembly not visible 18 | // to COM components. If you need to access a type in this assembly from 19 | // COM, set the ComVisible attribute to true on that type. 20 | [assembly: ComVisible(false)] 21 | 22 | // The following GUID is for the ID of the typelib if this project is exposed to COM 23 | [assembly: Guid("b44cd6c2-e676-4a51-a16b-7d6f8bedf6fc")] 24 | 25 | // Version information for an assembly consists of the following four values: 26 | // 27 | // Major Version 28 | // Minor Version 29 | // Build Number 30 | // Revision 31 | // 32 | // You can specify all the values or you can default the Build and Revision Numbers 33 | // by using the '*' as shown below: 34 | // [assembly: AssemblyVersion("1.0.*")] 35 | [assembly: AssemblyVersion("1.0.0.0")] 36 | [assembly: AssemblyFileVersion("1.0.0.0")] 37 | -------------------------------------------------------------------------------- /WEMSharpTests/WEMSharpTests.csproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 5 | Debug 6 | AnyCPU 7 | {B44CD6C2-E676-4A51-A16B-7D6F8BEDF6FC} 8 | Exe 9 | WEMSharpTests 10 | WEMSharpTests 11 | v4.6.2 12 | 512 13 | true 14 | 15 | 16 | AnyCPU 17 | true 18 | full 19 | false 20 | bin\Debug\ 21 | DEBUG;TRACE 22 | prompt 23 | 4 24 | 25 | 26 | AnyCPU 27 | pdbonly 28 | true 29 | bin\Release\ 30 | TRACE 31 | prompt 32 | 4 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | {2edfd763-c9cf-459e-9227-afebcad33850} 54 | WEMSharp 55 | 56 | 57 | 58 | --------------------------------------------------------------------------------