internal unsafe void Append([NotNull] string key, [NotNull] string value)
{
Span <byte> keyBytes = stackalloc byte[Encoding.ASCII.GetMaxByteCount(key.Length) + 1];
Span <byte> valueBytes = stackalloc byte[Encoding.UTF8.GetMaxByteCount(value.Length) + 1];
#if NETSTANDARD2_0
var keyByteCount = 1;
fixed(char *keyAddress = key)
keyByteCount += Encoding.ASCII.GetBytes(
keyAddress, key.Length,
(byte *)Unsafe.AsPointer(ref MemoryMarshal.GetReference(keyBytes)), keyBytes.Length);
var valueByteCount = 1;
fixed(char *valueAddress = value)
valueByteCount += Encoding.UTF8.GetBytes(
valueAddress, value.Length,
(byte *)Unsafe.AsPointer(ref MemoryMarshal.GetReference(valueBytes)), valueBytes.Length);
#else
var keyByteCount = Encoding.ASCII.GetBytes(key, keyBytes) + 1;
var valueByteCount = Encoding.UTF8.GetBytes(value, valueBytes) + 1;
#endif
SafeNativeMethods.MetadataObjectVorbisCommentEntryFromNameValuePair(
out var entry,
new IntPtr(Unsafe.AsPointer(ref MemoryMarshal.GetReference(keyBytes.Slice(0, keyByteCount)))),
new IntPtr(Unsafe.AsPointer(ref MemoryMarshal.GetReference(valueBytes.Slice(0, valueByteCount)))));
// The comment takes ownership of the new entry if 'copy' is false
SafeNativeMethods.MetadataObjectVorbisCommentAppendComment(Handle, entry, false);
}
internal unsafe void Append(string key, string value)
{
Span <byte> keyBytes = stackalloc byte[Encoding.ASCII.GetMaxByteCount(key.Length) + 1];
Span <byte> valueBytes = stackalloc byte[Encoding.UTF8.GetMaxByteCount(value.Length) + 1];
#if NETSTANDARD2_0
int keyLength;
fixed(char *keyAddress = key)
keyLength = Encoding.ASCII.GetBytes(
keyAddress, key.Length,
(byte *)Unsafe.AsPointer(ref MemoryMarshal.GetReference(keyBytes)), keyBytes.Length);
int valueLength;
fixed(char *valueAddress = value)
valueLength = Encoding.UTF8.GetBytes(
valueAddress, value.Length,
(byte *)Unsafe.AsPointer(ref MemoryMarshal.GetReference(valueBytes)), valueBytes.Length);
#else
var keyLength = Encoding.ASCII.GetBytes(key, keyBytes);
var valueLength = Encoding.UTF8.GetBytes(value, valueBytes);
// Since SkipLocalsInit is set, make sure the strings are null-terminated
keyBytes[keyLength] = 0;
valueBytes[valueLength] = 0;
#endif
SafeNativeMethods.MetadataObjectVorbisCommentEntryFromNameValuePair(
out var entry,
new(Unsafe.AsPointer(ref MemoryMarshal.GetReference(keyBytes.Slice(0, keyLength + 1)))),
new(Unsafe.AsPointer(ref MemoryMarshal.GetReference(valueBytes.Slice(0, valueLength + 1)))));
// The comment takes ownership of the new entry if 'copy' is false
SafeNativeMethods.MetadataObjectVorbisCommentAppendComment(Handle, entry, false);
}
