/// <summary>
/// Writes content of a MIDI meta event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
writer.WriteByte(Numerator);
writer.WriteByte((byte)Math.Log(Denominator, 2));
writer.WriteByte(ClocksPerClick);
writer.WriteByte(ThirtySecondNotesPerBeat);
}
/// <summary>
/// Writes content of a MIDI event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
internal sealed override void Write(MidiWriter writer, WritingSettings settings)
{
foreach (var parameter in _parameters)
{
writer.WriteByte(parameter);
}
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
writer.WriteByte(EventStatusBytes.Global.Meta);
}
//
byte statusByte;
var unknownMetaEvent = midiEvent as UnknownMetaEvent;
if (unknownMetaEvent != null)
{
statusByte = unknownMetaEvent.StatusByte;
}
else
{
var eventType = midiEvent.GetType();
if (!StandardEventTypes.Meta.TryGetStatusByte(eventType, out statusByte) && settings.CustomMetaEventTypes?.TryGetStatusByte(eventType, out statusByte) != true)
{
Debug.Fail($"Unable to write the {eventType} event.");
}
}
writer.WriteByte(statusByte);
//
var contentSize = midiEvent.GetSize(settings);
writer.WriteVlqNumber(contentSize);
midiEvent.Write(writer, settings);
}
/// <summary>
/// Initializes a new instance of the <see cref="MidiEventToBytesConverter"/> with the specified
/// initial capacity of internal buffer.
/// </summary>
/// <param name="capacity">Initial capacity of the internal buffer.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="capacity"/> is negative.</exception>
public MidiEventToBytesConverter(int capacity)
{
ThrowIfArgument.IsNegative(nameof(capacity), capacity, "Capacity is negative.");
_dataBytesStream = new MemoryStream(capacity);
_midiWriter = new MidiWriter(_dataBytesStream);
}
/// <summary>
/// Writes current <see cref="MidiFile"/> to the stream.
/// </summary>
/// <param name="stream">Stream to write file's data to.</param>
/// <param name="format">Format of the file to be written.</param>
/// <param name="settings">Settings according to which the file must be written. Specify <c>null</c> to use
/// default settings.</param>
/// <exception cref="ArgumentNullException"><paramref name="stream"/> is <c>null</c>.</exception>
/// <exception cref="ArgumentException"><paramref name="stream"/> doesn't support writing.</exception>
/// <exception cref="InvalidEnumArgumentException"><paramref name="format"/> specified an invalid value.</exception>
/// <exception cref="InvalidOperationException">Time division is <c>null</c>.</exception>
/// <exception cref="IOException">An I/O error occurred while writing to the stream.</exception>
/// <exception cref="ObjectDisposedException"><paramref name="stream"/> is disposed.</exception>
/// <exception cref="TooManyTrackChunksException">Count of track chunks presented in the file
/// exceeds maximum value allowed for MIDI file.</exception>
public void Write(Stream stream, MidiFileFormat format = MidiFileFormat.MultiTrack, WritingSettings settings = null)
{
ThrowIfArgument.IsNull(nameof(stream), stream);
ThrowIfArgument.IsInvalidEnumValue(nameof(format), format);
if (TimeDivision == null)
{
throw new InvalidOperationException("Time division is null.");
}
if (!stream.CanWrite)
{
throw new ArgumentException("Stream doesn't support writing.", nameof(stream));
}
//
if (settings == null)
{
settings = new WritingSettings();
}
if (settings.WriterSettings == null)
{
settings.WriterSettings = new WriterSettings();
}
using (var writer = new MidiWriter(stream, settings.WriterSettings))
{
var chunksConverter = ChunksConverterFactory.GetConverter(format);
var chunks = chunksConverter.Convert(Chunks);
if (settings.WriteHeaderChunk)
{
var trackChunksCount = chunks.Count(c => c is TrackChunk);
if (trackChunksCount > ushort.MaxValue)
{
throw new TooManyTrackChunksException(trackChunksCount);
}
var headerChunk = new HeaderChunk
{
FileFormat = (ushort)format,
TimeDivision = TimeDivision,
TracksNumber = (ushort)trackChunksCount
};
headerChunk.Write(writer, settings);
}
foreach (var chunk in chunks)
{
if (chunk is UnknownChunk && settings.DeleteUnknownChunks)
{
continue;
}
chunk.Write(writer, settings);
}
}
}
/// <summary>
/// Writes content of a <see cref="TrackChunk"/>.
/// </summary>
/// <remarks>
/// Content of a <see cref="TrackChunk"/> is collection of MIDI events.
/// </remarks>
/// <param name="writer">Writer to write the chunk's content with.</param>
/// <param name="settings">Settings according to which the chunk's content must be written.</param>
/// <exception cref="ObjectDisposedException">Method was called after the writer's underlying stream was disposed.</exception>
/// <exception cref="IOException">An I/O error occurred on the writer's underlying stream.</exception>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
ProcessEvents(settings, (eventWriter, midiEvent, writeStatusByte) =>
{
writer.WriteVlqNumber(midiEvent.DeltaTime);
eventWriter.Write(midiEvent, writer, settings, writeStatusByte);
});
}
/// <summary>
/// Writes content of a MIDI event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
internal sealed override void Write(MidiWriter writer, WritingSettings settings)
{
var data = Data;
if (data != null)
{
writer.WriteBytes(data);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MidiEventToBytesConverter"/> with the specified
/// initial capacity of internal buffer.
/// </summary>
/// <param name="capacity">Initial capacity of the internal buffer.</param>
/// <exception cref="ArgumentOutOfRangeException"><paramref name="capacity"/> is negative.</exception>
public MidiEventToBytesConverter(int capacity)
{
ThrowIfArgument.IsNegative(nameof(capacity), capacity, "Capacity is negative.");
_dataBytesStream = new MemoryStream(capacity);
_midiWriter = new MidiWriter(_dataBytesStream, new WriterSettings {
UseBuffering = false
});
}
/// <summary>
/// Writes content of a MIDI meta event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
var data = Data;
if (data != null)
{
writer.WriteBytes(data);
}
}
/// <summary>
/// Writes current <see cref="MidiFile"/> to the stream.
/// </summary>
/// <param name="stream">Stream to write file's data to.</param>
/// <param name="format">Format of the file to be written.</param>
/// <param name="settings">Settings according to which the file must be written.</param>
/// <exception cref="ArgumentNullException"><paramref name="stream"/> is null.</exception>
/// <exception cref="ArgumentException"><paramref name="stream"/> doesn't support writing.</exception>
/// <exception cref="InvalidEnumArgumentException"><paramref name="format"/> specified an invalid value.</exception>
/// <exception cref="InvalidOperationException">Time division is null.</exception>
/// <exception cref="IOException">An I/O error occurred while writing to the stream.</exception>
/// <exception cref="ObjectDisposedException"><paramref name="stream"/> is disposed. -or-
/// Underlying stream writer is disposed.</exception>
/// <exception cref="TooManyTrackChunksException">Count of track chunks presented in the file
/// exceeds maximum value allowed for MIDI file.</exception>
public void Write(Stream stream, MidiFileFormat format = MidiFileFormat.MultiTrack, WritingSettings settings = null)
{
ThrowIfArgument.IsNull(nameof(stream), stream);
ThrowIfArgument.IsInvalidEnumValue(nameof(format), format);
if (TimeDivision == null)
{
throw new InvalidOperationException("Time division is null.");
}
if (!stream.CanWrite)
{
throw new ArgumentException("Stream doesn't support writing.", nameof(stream));
}
//
if (settings == null)
{
settings = new WritingSettings();
}
ValidateCustomMetaEventsStatusBytes(settings.CustomMetaEventTypes);
ValidateCustomChunksIds(Chunks.Where(c => !(c is TrackChunk) && !(c is HeaderChunk)));
using (var writer = new MidiWriter(stream))
{
var chunksConverter = ChunksConverterFactory.GetConverter(format);
var chunks = chunksConverter.Convert(Chunks);
var trackChunksCount = chunks.Count(c => c is TrackChunk);
if (trackChunksCount > ushort.MaxValue)
{
throw new TooManyTrackChunksException(
$"Count of track chunks to be written ({trackChunksCount}) is greater than the valid maximum ({ushort.MaxValue}).",
trackChunksCount);
}
var headerChunk = new HeaderChunk
{
FileFormat = (ushort)format,
TimeDivision = TimeDivision,
TracksNumber = (ushort)trackChunksCount
};
headerChunk.Write(writer, settings);
foreach (var chunk in chunks)
{
if (settings.CompressionPolicy.HasFlag(CompressionPolicy.DeleteUnknownChunks) && chunk is UnknownChunk)
{
continue;
}
chunk.Write(writer, settings);
}
}
}
/// <summary>
/// Writes chunk to the <see cref="MidiWriter"/>'s underlying stream according to
/// specified <see cref="WritingSettings"/>.
/// </summary>
/// <param name="writer">Writer to write the chunk's data with.</param>
/// <param name="settings">Settings according to which the chunk's data must be written.</param>
/// <exception cref="ObjectDisposedException">
/// Method was called after <paramref name="writer"/> was disposed.
/// </exception>
/// <exception cref="IOException">
/// An I/O error occurred on the <paramref name="writer"/>'s underlying stream.
/// </exception>
internal void Write(MidiWriter writer, WritingSettings settings)
{
writer.WriteString(ChunkId);
var size = GetContentSize(settings);
writer.WriteDword(size);
WriteContent(writer, settings);
}
internal override void Write(MidiWriter writer, WritingSettings settings)
{
var component = Component;
var componentValueMask = ComponentValueMasks[component];
var componentValue = ComponentValue & componentValueMask;
var data = DataTypesUtilities.CombineAsFourBitNumbers((byte)component, (byte)componentValue);
writer.WriteByte(data);
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
var statusByte = GetStatusByte(midiEvent);
writer.WriteByte(statusByte);
}
//
midiEvent.Write(writer, settings);
}
/// <summary>
/// Writes content of a MIDI meta event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
protected sealed override void WriteContent(MidiWriter writer, WritingSettings settings)
{
var text = Text;
if (string.IsNullOrEmpty(text))
{
return;
}
var encoding = settings.TextEncoding ?? SmfConstants.DefaultTextEncoding;
var bytes = encoding.GetBytes(text);
writer.WriteBytes(bytes);
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
var statusByte = GetStatusByte(midiEvent);
writer.WriteByte(statusByte);
}
//
var contentSize = midiEvent.GetSize(settings);
writer.WriteVlqNumber(contentSize);
midiEvent.Write(writer, settings);
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
var eventType = midiEvent.GetType();
byte statusByte;
if (!StandardEventTypes.SystemCommon.TryGetStatusByte(eventType, out statusByte))
{
Debug.Fail($"Unable to write the {eventType} event.");
}
writer.WriteByte(statusByte);
}
midiEvent.Write(writer, settings);
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
var eventType = midiEvent.GetType();
byte statusByte;
if (!StandardEventTypes.SysEx.TryGetStatusByte(eventType, out statusByte))
{
Debug.Fail($"Unable to write the {eventType} event.");
}
writer.WriteByte(statusByte);
}
//
var contentSize = midiEvent.GetSize(settings);
writer.WriteVlqNumber(contentSize);
midiEvent.Write(writer, settings);
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
var eventType = midiEvent.GetType();
byte statusByte;
if (!StandardEventTypes.Channel.TryGetStatusByte(eventType, out statusByte))
{
Debug.Fail($"Unable to write the {eventType} event.");
}
var channel = ((ChannelEvent)midiEvent).Channel;
var totalStatusByte = DataTypesUtilities.Combine((FourBitNumber)statusByte, channel);
writer.WriteByte(totalStatusByte);
}
//
midiEvent.Write(writer, settings);
}
/// <summary>
/// Writes content of a MIDI meta event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
writer.Write3ByteDword((uint)MicrosecondsPerQuarterNote);
}
public void Write(MidiEvent midiEvent, MidiWriter writer, WritingSettings settings, bool writeStatusByte)
{
if (writeStatusByte)
{
writer.WriteByte(EventStatusBytes.Global.Meta);
}
//
byte statusByte = 0;
switch (midiEvent.EventType)
{
case MidiEventType.Lyric:
statusByte = EventStatusBytes.Meta.Lyric;
break;
case MidiEventType.SetTempo:
statusByte = EventStatusBytes.Meta.SetTempo;
break;
case MidiEventType.Text:
statusByte = EventStatusBytes.Meta.Text;
break;
case MidiEventType.SequenceTrackName:
statusByte = EventStatusBytes.Meta.SequenceTrackName;
break;
case MidiEventType.PortPrefix:
statusByte = EventStatusBytes.Meta.PortPrefix;
break;
case MidiEventType.TimeSignature:
statusByte = EventStatusBytes.Meta.TimeSignature;
break;
case MidiEventType.SequencerSpecific:
statusByte = EventStatusBytes.Meta.SequencerSpecific;
break;
case MidiEventType.KeySignature:
statusByte = EventStatusBytes.Meta.KeySignature;
break;
case MidiEventType.Marker:
statusByte = EventStatusBytes.Meta.Marker;
break;
case MidiEventType.ChannelPrefix:
statusByte = EventStatusBytes.Meta.ChannelPrefix;
break;
case MidiEventType.InstrumentName:
statusByte = EventStatusBytes.Meta.InstrumentName;
break;
case MidiEventType.CopyrightNotice:
statusByte = EventStatusBytes.Meta.CopyrightNotice;
break;
case MidiEventType.SmpteOffset:
statusByte = EventStatusBytes.Meta.SmpteOffset;
break;
case MidiEventType.DeviceName:
statusByte = EventStatusBytes.Meta.DeviceName;
break;
case MidiEventType.CuePoint:
statusByte = EventStatusBytes.Meta.CuePoint;
break;
case MidiEventType.ProgramName:
statusByte = EventStatusBytes.Meta.ProgramName;
break;
case MidiEventType.SequenceNumber:
statusByte = EventStatusBytes.Meta.SequenceNumber;
break;
case MidiEventType.EndOfTrack:
statusByte = EventStatusBytes.Meta.EndOfTrack;
break;
case MidiEventType.UnknownMeta:
statusByte = ((UnknownMetaEvent)midiEvent).StatusByte;
break;
default:
{
var eventType = midiEvent.GetType();
if (settings.CustomMetaEventTypes?.TryGetStatusByte(eventType, out statusByte) != true)
{
Debug.Fail($"Unable to write the {eventType} event.");
}
}
break;
}
writer.WriteByte(statusByte);
//
var contentSize = midiEvent.GetSize(settings);
writer.WriteVlqNumber(contentSize);
midiEvent.Write(writer, settings);
}
/// <summary> /// Writes content of a MIDI event. /// </summary> /// <param name="writer">Writer to write the content with.</param> /// <param name="settings">Settings according to which the event's content must be written.</param> internal abstract void Write(MidiWriter writer, WritingSettings settings);
/// <summary>
/// Writes content of a MIDI event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
internal sealed override void Write(MidiWriter writer, WritingSettings settings)
{
writer.WriteBytes(_parameters);
}
internal override void Write(MidiWriter writer, WritingSettings settings)
{
writer.WriteByte(_lsb);
writer.WriteByte(_msb);
}
internal override sealed void Write(MidiWriter writer, WritingSettings settings)
{
}
internal override void Write(MidiWriter writer, WritingSettings settings)
{
writer.WriteByte(Number);
}
/// <summary>
/// Writes content of a MIDI meta event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
_smpteData.Write(writer.WriteByte);
}
internal override void Write(MidiWriter writer, WritingSettings settings)
{
writer.WriteByte(_dataByte1);
}
/// <summary>
/// Writes content of a <see cref="HeaderChunk"/>.
/// </summary>
/// <remarks>
/// Content of a <see cref="HeaderChunk"/> is format of the file, number of track chunks and time division.
/// Six bytes required to write all of this information.
/// </remarks>
/// <param name="writer">Writer to write the chunk's content with.</param>
/// <param name="settings">Settings according to which the chunk's content must be written.</param>
/// <exception cref="ObjectDisposedException">Method was called after the writer's underlying stream was disposed.</exception>
/// <exception cref="IOException">An I/O error occurred on the writer's underlying stream.</exception>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
writer.WriteWord(FileFormat);
writer.WriteWord(TracksNumber);
writer.WriteInt16(TimeDivision.ToInt16());
}
/// <summary>
/// Writes content of a MIDI meta event.
/// </summary>
/// <param name="writer">Writer to write the content with.</param>
/// <param name="settings">Settings according to which the event's content must be written.</param>
protected override void WriteContent(MidiWriter writer, WritingSettings settings)
{
writer.WriteSByte(Key);
writer.WriteByte(Scale);
}
/// <summary> /// Writes content of a chunk. Content is a part of chunk's data without its header (ID and size). /// </summary> /// <param name="writer">Writer to write the chunk's content with.</param> /// <param name="settings">Settings according to which the chunk's content must be written.</param> protected abstract void WriteContent(MidiWriter writer, WritingSettings settings);