mirror of
https://github.com/GTA-ASM/SanAndreasUnity
synced 2024-11-27 06:20:17 +00:00
390 lines
24 KiB
C#
390 lines
24 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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/// <summary>
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/// GTA audio sharp namespace
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/// </summary>
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namespace GTAAudioSharp
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{
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/// <summary>
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/// GTA audio class
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/// </summary>
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public static class GTAAudio
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{
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/// <summary>
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/// Maximal sound entries
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/// </summary>
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private static readonly ushort maxSoundEntries = 400;
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/// <summary>
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/// Streams encoding secret
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/// </summary>
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internal static readonly byte[] streamsEncodingSecret = new byte[] { 0xEA, 0x3A, 0xC4, 0xA1, 0x9A, 0xA8, 0x14, 0xF3, 0x48, 0xB0, 0xD7, 0x23, 0x9D, 0xE8, 0xFF, 0xF1 };
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/// <summary>
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/// Get null terminated byte string length
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/// </summary>
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/// <param name="bytes">Bytes</param>
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/// <returns>Number of characters in byte string</returns>
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private static int GetNullTerminatedByteStringLength(byte[] bytes)
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{
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int ret = 0;
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if (bytes != null)
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{
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ret = bytes.Length;
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for (int i = 0; i < bytes.Length; i++)
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{
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if (bytes[i] == 0)
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{
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ret = i;
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break;
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}
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}
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}
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return ret;
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}
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/// <summary>
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/// Open GTA audio files
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/// </summary>
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/// <param name="directory">GTA audio files directory</param>
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/// <param name="filesMode">Audio files mode</param>
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/// <returns>GTA audio files</returns>
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public static GTAAudioFiles Open(string directory, EGTAAudioFilesMode filesMode)
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{
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GTAAudioFiles ret = null;
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try
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{
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if (directory != null)
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{
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/*if (filesMode == EGTAAudioFilesMode.Create)
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{
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// TODO
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}
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else*/
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if (Directory.Exists(directory))
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{
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string config_directory = Path.Combine(directory, "CONFIG");
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string sfx_directory = null;
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string sfx_directory_1 = Path.Combine(directory, "SFX");
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string sfx_directory_2 = Path.Combine(directory, "sfx");
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if (Directory.Exists(sfx_directory_1))
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sfx_directory = sfx_directory_1;
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else if (Directory.Exists(sfx_directory_2))
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sfx_directory = sfx_directory_2;
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string streams_directory = Path.Combine(directory, "streams");
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if (Directory.Exists(config_directory) &&
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Directory.Exists(sfx_directory) &&
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Directory.Exists(streams_directory))
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{
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string audio_event_history_txt_path = Path.Combine(config_directory, "AudioEventHistory.txt");
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string bank_lookup_dat_path = Path.Combine(config_directory, "BankLkup.dat");
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string bank_slot_dat_path = Path.Combine(config_directory, "BankSlot.dat");
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string event_volume_dat_path = Path.Combine(config_directory, "EventVol.dat");
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string pak_files_dat_path = Path.Combine(config_directory, "PakFiles.dat");
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string stream_paks_dat_path = Path.Combine(config_directory, "StrmPaks.dat");
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string trak_lookup_dat_path = Path.Combine(config_directory, "TrakLkup.dat");
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if (File.Exists(audio_event_history_txt_path) &&
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File.Exists(bank_lookup_dat_path) &&
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File.Exists(bank_slot_dat_path) &&
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File.Exists(event_volume_dat_path) &&
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File.Exists(pak_files_dat_path) &&
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File.Exists(stream_paks_dat_path) &&
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File.Exists(trak_lookup_dat_path))
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{
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string[] sfx_files = null;
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string[] streams_files = null;
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GTAAudioSFXFile[] sfx_audio_files = null;
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GTAAudioStreamsFile[] streams_audio_files = null;
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List<GTAAudioBankData>[] sfx_bank_data;
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List<GTAAudioBankData>[] streams_bank_data;
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Dictionary<string, uint> sfx_files_lookup = new Dictionary<string, uint>();
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Dictionary<string, uint> streams_files_lookup = new Dictionary<string, uint>();
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byte[] volume = null;
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using (FileStream stream = File.Open(pak_files_dat_path, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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long stream_length = stream.Length;
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if ((stream_length % 52L) == 0L)
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{
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byte[] data = new byte[52];
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long count = stream_length / 52L;
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sfx_files = new string[count];
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sfx_audio_files = new GTAAudioSFXFile[count];
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for (int i = 0; i < sfx_files.Length; i++)
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{
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if (stream.Read(data, 0, data.Length) == data.Length)
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{
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int len = GetNullTerminatedByteStringLength(data);
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if (len > 0)
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{
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string sfx_file = Encoding.UTF8.GetString(data, 0, len);
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sfx_files[i] = sfx_file;
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sfx_file = sfx_file.ToLower();
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if (!(sfx_files_lookup.ContainsKey(sfx_file)))
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{
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sfx_files_lookup.Add(sfx_file, (uint)i);
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}
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}
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}
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else
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{
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sfx_files = new string[0];
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break;
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}
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}
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}
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}
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if (sfx_files == null)
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{
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sfx_files = new string[0];
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sfx_audio_files = new GTAAudioSFXFile[0];
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}
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using (FileStream stream = File.Open(stream_paks_dat_path, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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long stream_length = stream.Length;
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if ((stream_length % 16L) == 0L)
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{
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byte[] data = new byte[16];
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long count = stream_length / 16L;
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streams_files = new string[count];
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streams_audio_files = new GTAAudioStreamsFile[count];
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for (int i = 0; i < streams_files.Length; i++)
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{
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if (stream.Read(data, 0, data.Length) == data.Length)
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{
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int len = GetNullTerminatedByteStringLength(data);
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if (len > 0)
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{
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string streams_file = Encoding.UTF8.GetString(data, 0, len);
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streams_files[i] = streams_file;
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streams_file = streams_file.ToLower();
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if (!(streams_files_lookup.ContainsKey(streams_file)))
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{
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streams_files_lookup.Add(streams_file, (uint)i);
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}
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}
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}
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else
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{
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streams_files = new string[0];
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break;
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}
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}
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}
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}
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if (streams_files == null)
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{
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streams_files = new string[0];
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streams_audio_files = new GTAAudioStreamsFile[0];
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}
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sfx_bank_data = new List<GTAAudioBankData>[sfx_files.Length];
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for (int i = 0; i < sfx_bank_data.Length; i++)
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{
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sfx_bank_data[i] = new List<GTAAudioBankData>();
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}
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using (FileStream stream = File.Open(bank_lookup_dat_path, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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using (BinaryReader reader = new BinaryReader(stream))
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{
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long stream_length = stream.Length;
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if ((stream_length % 12L) == 0L)
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{
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long count = stream_length / 12L;
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for (long i = 0; i < count; i++)
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{
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byte index = reader.ReadByte();
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stream.Seek(3L, SeekOrigin.Current);
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uint offset = reader.ReadUInt32();
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uint length = reader.ReadUInt32();
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if (index < sfx_bank_data.Length)
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{
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sfx_bank_data[index].Add(new GTAAudioBankData(offset, length));
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}
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}
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}
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}
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}
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streams_bank_data = new List<GTAAudioBankData>[streams_files.Length];
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for (int i = 0; i < streams_bank_data.Length; i++)
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{
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streams_bank_data[i] = new List<GTAAudioBankData>();
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}
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using (FileStream stream = File.Open(trak_lookup_dat_path, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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using (BinaryReader reader = new BinaryReader(stream))
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{
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long stream_length = stream.Length;
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if ((stream_length % 12L) == 0L)
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{
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long count = stream_length / 12L;
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for (long i = 0; i < count; i++)
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{
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byte index = reader.ReadByte();
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stream.Seek(3L, SeekOrigin.Current);
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uint offset = reader.ReadUInt32();
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uint length = reader.ReadUInt32();
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if (index < streams_bank_data.Length)
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{
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streams_bank_data[index].Add(new GTAAudioBankData(offset, length));
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}
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}
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}
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}
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}
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for (int i = 0, j, k; i < sfx_files.Length; i++)
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{
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string sfx_file = sfx_files[i];
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FileStream stream = null;
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if (sfx_file != null)
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{
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string sfx_path = Path.Combine(sfx_directory, sfx_file);
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if (File.Exists(sfx_path))
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{
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stream = File.Open(sfx_path, FileMode.Open, FileAccess.Read, FileShare.Read);
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if (stream != null)
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{
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BinaryReader reader = new BinaryReader(stream);
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if (reader != null)
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{
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int len = sfx_bank_data[i].Count;
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for (j = 0; j < len; j++)
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{
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GTAAudioBankData bank_data = sfx_bank_data[i][j];
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GTAAudioAudioClipData[] audio_clip_data = null;
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HashSet<uint> offset_set = new HashSet<uint>();
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stream.Seek(bank_data.Offset, SeekOrigin.Begin);
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ushort num_audio_clips = reader.ReadUInt16();
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stream.Seek(sizeof(ushort), SeekOrigin.Current);
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if (num_audio_clips <= maxSoundEntries)
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{
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audio_clip_data = new GTAAudioAudioClipData[num_audio_clips];
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for (uint l = 0U; l != num_audio_clips; l++)
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{
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uint sound_buffer_offset = reader.ReadUInt32();
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uint loop_offset = reader.ReadUInt32();
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ushort sample_rate = reader.ReadUInt16();
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ushort sound_headroom = reader.ReadUInt16();
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audio_clip_data[l] = new GTAAudioAudioClipData(sound_buffer_offset, loop_offset, sample_rate, sound_headroom, 0U);
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if (!(offset_set.Contains(sound_buffer_offset)))
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{
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offset_set.Add(sound_buffer_offset);
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}
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}
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}
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List<uint> offsets = new List<uint>(offset_set);
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offset_set.Clear();
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offsets.Sort();
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if (audio_clip_data == null)
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{
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audio_clip_data = new GTAAudioAudioClipData[0];
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}
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for (k = 0; k < audio_clip_data.Length; k++)
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{
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GTAAudioAudioClipData a_c_d = audio_clip_data[k];
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int offset_index = offsets.IndexOf(a_c_d.SoundBufferOffset);
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audio_clip_data[k] = new GTAAudioAudioClipData(a_c_d.SoundBufferOffset, a_c_d.LoopOffset, a_c_d.SampleRate, a_c_d.SoundHeadroom, ((offset_index < (offsets.Count - 1)) ? offsets[offset_index + 1] : bank_data.Length) - a_c_d.SoundBufferOffset);
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}
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offsets.Clear();
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sfx_bank_data[i][j] = new GTAAudioBankData(bank_data.Offset, bank_data.Length, audio_clip_data);
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}
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}
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}
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}
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}
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sfx_audio_files[i] = new GTAAudioSFXFile(sfx_file, stream, sfx_bank_data[i].ToArray());
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sfx_bank_data[i].Clear();
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}
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for (int i = 0; i < streams_files.Length; i++)
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{
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string streams_file = streams_files[i];
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FileStream stream = null;
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GTAAudioBeatData[] beats_data = null;
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if (streams_file != null)
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{
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string streams_path = Path.Combine(streams_directory, streams_file);
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if (File.Exists(streams_path))
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{
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stream = File.Open(streams_path, FileMode.Open, FileAccess.Read, FileShare.Read);
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if (stream != null)
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{
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DecodingBinaryReader reader = new DecodingBinaryReader(stream);
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if (reader != null)
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{
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List<GTAAudioBeatData> beats_data_list = new List<GTAAudioBeatData>();
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for (int j = 0; j < 1000; j++)
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{
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uint timing = reader.ReadDecodeUInt32();
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uint control = reader.ReadDecodeUInt32();
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if (timing != uint.MaxValue)
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{
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beats_data_list.Add(new GTAAudioBeatData(timing, control));
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}
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else
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{
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break;
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}
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}
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stream.Seek(8064L, SeekOrigin.Begin);
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uint magic_number = reader.ReadDecodeUInt32();
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if (magic_number == 0xCDCD0001)
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{
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beats_data = beats_data_list.ToArray();
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}
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beats_data_list.Clear();
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}
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}
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}
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}
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if (beats_data == null)
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{
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beats_data = new GTAAudioBeatData[0];
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}
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streams_audio_files[i] = new GTAAudioStreamsFile(streams_file, stream, streams_bank_data[i].ToArray(), beats_data);
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streams_bank_data[i].Clear();
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}
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using (FileStream stream = File.Open(event_volume_dat_path, FileMode.Open, FileAccess.Read, FileShare.Read))
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{
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volume = new byte[stream.Length];
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if (stream.Read(volume, 0, volume.Length) != volume.Length)
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{
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volume = new byte[0];
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}
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}
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if (volume == null)
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{
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volume = new byte[0];
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}
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ret = new GTAAudioFiles(sfx_audio_files, streams_audio_files, sfx_files_lookup, streams_files_lookup, volume);
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}
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}
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}
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}
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}
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catch (Exception e)
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{
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if (ret != null)
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{
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ret.Dispose();
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ret = null;
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}
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throw e;
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}
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return ret;
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}
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/// <summary>
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/// Open GTA audio files in read only mode
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/// </summary>
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/// <param name="directory">Audio files directory</param>
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/// <returns>GTA audio files</returns>
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public static GTAAudioFiles OpenRead(string directory)
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{
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return Open(directory, EGTAAudioFilesMode.Read);
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}
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}
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}
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