internal override void Write(Stream output)
{
var contents = Encoding.UTF8.GetBytes(Value);
using (var writer = new Mp4Writer(output))
{
// Write the atom header
writer.WriteBigEndian((uint)contents.Length + 24);
#if NETSTANDARD2_0
writer.Write(CodePagesEncodingProvider.Instance.GetEncoding(1252).GetBytes(_fourCc));
#else
Span <byte> fourCcBuffer = stackalloc byte[4];
CodePagesEncodingProvider.Instance.GetEncoding(1252).GetBytes(_fourCc, fourCcBuffer);
writer.Write(fourCcBuffer);
#endif
// Write the data atom header
writer.WriteBigEndian((uint)contents.Length + 16);
writer.WriteBigEndian(0x64617461); // 'data'
// Set the type flag
writer.WriteBigEndian(1);
writer.WriteZeros(4);
writer.Write(contents);
}
}
internal override void Write(Stream output)
{
using (var writer = new Mp4Writer(output))
{
// Write the atom header
writer.WriteBigEndian(32);
writer.WriteBigEndian(0x74726B6E); // 'trkn'
// Write the data atom header
writer.WriteBigEndian(24);
writer.WriteBigEndian(0x64617461); // 'data'
writer.WriteZeros(11);
writer.Write(TrackNumber);
writer.WriteZeros(1);
writer.Write(TrackCount);
writer.WriteZeros(2);
}
}
internal override void Write(Stream output)
{
if (_size <= 8)
{
return;
}
using (var writer = new Mp4Writer(output))
{
// Write the atom header
writer.WriteBigEndian(_size);
writer.WriteBigEndian(0x66726565); // 'free'
writer.WriteZeros((int)_size - 8);
}
}
internal override void Write(Stream output)
{
using (var writer = new Mp4Writer(output))
{
// Write the atom header
writer.WriteBigEndian((uint)Value.Data.Length + 24);
writer.WriteBigEndian(0x636F7672); // 'covr'
// Write the data atom header
writer.WriteBigEndian((uint)Value.Data.Length + 16);
writer.WriteBigEndian(0x64617461); // 'data'
// Set the type flag to PNG or JPEG
writer.WriteBigEndian(Value.Lossless ? 14u : 13u);
writer.WriteZeros(4);
#if NETSTANDARD2_0
writer.Write(Value.Data.ToArray());
#else
writer.Write(Value.Data);
#endif
}
}