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Some improvements to wav export for Unity 1.x - 2.5

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VaDiM
2026-10-20 00:20:26 +03:00
parent e4b56b43f4
commit d2e51dbeef
5 changed files with 40 additions and 37 deletions
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AssetStudioUtility/Audio/AudioClipConverter.cs
+19 -22
View File
@@ -71,9 +71,9 @@ namespace AssetStudio
if (isLegacyRawWav)
{
mode |= MODE.OPENRAW;
if (m_AudioClip.m_AudioData.Endian == EndianType.BigEndian && exinfo.format == SOUND_FORMAT.PCM16)
if (m_AudioClip.m_AudioData.Endian == EndianType.BigEndian)
{
SwapPcm16Endian(audioBuff.AsSpan(0, (int)m_AudioClip.m_Size));
LegacyRawWavSwapEndian(audioBuff, m_AudioClip.m_AudioData.Size, (LegacyAudioType)m_AudioClip.m_Format);
}
}
var result = system.createSound(audioBuff, mode, ref exinfo, out var sound);
@@ -185,40 +185,37 @@ namespace AssetStudio
debugLog += "Finished FMOD_PCMFLOAT -> PCM16 converting\n";
}
#region LegacyRawWav
//For raw wav data in unity 1.x - 2.5
//we can handle it with fmod as well, but this way should be better, I guess
public byte[] WrapWavData(ref string debugLog)
public static byte[] LegacyRawWavGenerateHeader(AudioClip m_AudioClip, ref string debugLog)
{
if (!isLegacyRawWav)
return null;
var legacyType = (LegacyAudioType)m_AudioClip.m_Format;
var audioSize = (int)m_AudioClip.m_Size;
var audioSize = (uint)m_AudioClip.m_AudioData.Size;
var channels = m_AudioClip.m_Channels;
var sampleRate = m_AudioClip.m_Frequency;
var sampleRate = (uint)m_AudioClip.m_Frequency;
var audioFormat = WavAudioFormat.PCM;
var bits = legacyType == LegacyAudioType.RawWavU8Mono ? 8 : 16;
var bits = (LegacyAudioType)m_AudioClip.m_Format == LegacyAudioType.RawWavU8Mono ? 8 : 16;
debugLog += "[Legacy AudioClip] Generating wav header..\n";
if (m_AudioClip.m_AudioData.Endian == EndianType.BigEndian && bits == 16)
{
SwapPcm16Endian(audioBuff.AsSpan(0, audioSize));
}
var wavBuffer = new byte[audioSize + 44];
var wavHeader = new WavHeader((uint)audioSize, audioFormat, channels, (uint)sampleRate, bits);
wavHeader.WriteToArray(wavBuffer);
audioBuff.AsSpan(0, audioSize).CopyTo(wavBuffer.AsSpan(44));
var headerBuff = new byte[44];
var wavHeader = new WavHeader(audioSize, audioFormat, channels, sampleRate, bits);
wavHeader.WriteToArray(headerBuff);
return wavBuffer;
return headerBuff;
}
public static void SwapPcm16Endian(Span<byte> buffer)
public static void LegacyRawWavSwapEndian(byte[] audioData, int audioSize, LegacyAudioType legacyType)
{
for (var i = 0; i < buffer.Length; i += 2)
if (legacyType == LegacyAudioType.RawWavS16Mono || legacyType == LegacyAudioType.RawWavS16Stereo)
{
buffer.Slice(i, 2).Reverse();
var dataSpan = audioData.AsSpan(0, audioSize);
for (var i = 0; i < audioSize; i += 2)
{
dataSpan.Slice(i, 2).Reverse();
}
}
}
#endregion
private static bool ErrorCheck(RESULT result, ref string log)
{
AssetStudioUtility/Audio/AudioClipExtension.cs
+3 -1
View File
@@ -55,7 +55,9 @@
public static bool IsLegacyRawWav(this AudioClip m_AudioClip)
{
return m_AudioClip.version < (2, 6) && m_AudioClip.m_Format > 0 && (LegacyAudioType)m_AudioClip.m_Format < LegacyAudioType.CompressedAudio;
return m_AudioClip.version < (2, 6)
&& m_AudioClip.m_Format > 0
&& (LegacyAudioType)m_AudioClip.m_Format < LegacyAudioType.CompressedAudio;
}
}
}