internal static extern AudioFileStatus AudioFileReadPackets(
[NotNull] AudioFileHandle handle,
[MarshalAs(UnmanagedType.Bool)] bool useCache,
out uint numBytes,
[NotNull][In, Out] AudioStreamPacketDescription[] packetDescriptions,
long startingPacket,
ref uint packets,
IntPtr data);
internal static extern AudioFileStatus AudioFileOpenWithCallbacks(
IntPtr userData,
[NotNull] NativeCallbacks.AudioFileReadCallback readCallback,
[CanBeNull] NativeCallbacks.AudioFileWriteCallback writeCallback,
[NotNull] NativeCallbacks.AudioFileGetSizeCallback getSizeCallback,
[CanBeNull] NativeCallbacks.AudioFileSetSizeCallback setSizeCallback,
AudioFileType fileType,
[NotNull] out AudioFileHandle handle);
internal static extern AudioFileStatus AudioFileOpenWithCallbacks(
IntPtr userData,
NativeCallbacks.AudioFileReadCallback readCallback,
NativeCallbacks.AudioFileWriteCallback?writeCallback,
NativeCallbacks.AudioFileGetSizeCallback getSizeCallback,
NativeCallbacks.AudioFileSetSizeCallback?setSizeCallback,
AudioFileType fileType,
out AudioFileHandle handle);
internal static extern AudioFileStatus AudioFileInitializeWithCallbacks(
IntPtr userData,
[NotNull] NativeCallbacks.AudioFileReadCallback readCallback,
[NotNull] NativeCallbacks.AudioFileWriteCallback writeCallback,
[NotNull] NativeCallbacks.AudioFileGetSizeCallback getSizeCallback,
[NotNull] NativeCallbacks.AudioFileSetSizeCallback setSizeCallback,
AudioFileType fileType,
ref AudioStreamBasicDescription description,
uint flags,
[NotNull] out AudioFileHandle handle);
internal AudioFile(AudioFileType fileType, [NotNull] Stream stream)
{
// This constructor is for reading
_readCallback = ReadCallback;
_getSizeCallback = GetSizeCallback;
_stream = stream;
_endOfData = stream.Length;
SafeNativeMethods.AudioFileOpenWithCallbacks(IntPtr.Zero,
_readCallback, null, _getSizeCallback, null,
fileType, out var handle);
Handle = handle;
}
internal AudioFile(AudioStreamBasicDescription description, AudioFileType fileType, [NotNull] Stream stream)
{
// This constructor is for writing
_readCallback = ReadCallback;
_getSizeCallback = GetSizeCallback;
_writeCallback = WriteCallback;
_setSizeCallback = SetSizeCallback;
_stream = stream;
SafeNativeMethods.AudioFileInitializeWithCallbacks(IntPtr.Zero,
_readCallback, _writeCallback, _getSizeCallback, _setSizeCallback,
fileType, ref description, 0, out var handle);
Handle = handle;
}
internal static extern ExtendedAudioFileStatus ExtAudioFileWrapAudioFile(
[NotNull] AudioFileHandle audioFileHandle,
[MarshalAs(UnmanagedType.Bool)] bool forWriting,
out ExtendedAudioFileHandle handle);
internal static extern AudioFileStatus AudioFileGetPropertyInfo(
[NotNull] AudioFileHandle handle,
AudioFilePropertyId id,
out uint dataSize,
out uint isWritable);
internal static extern AudioFileStatus AudioFileGetProperty(
[NotNull] AudioFileHandle handle,
AudioFilePropertyId id,
ref uint size,
[Out] IntPtr data);
