/// <summary>
/// Renders the current instance as a raw ASF object.
/// </summary>
/// <returns>
/// A <see cref="ByteVector" /> object containing the
/// rendered version of the current instance.
/// </returns>
public override ByteVector Render()
{
var output = new ByteVector();
uint child_count = 0;
foreach (var child in children)
{
if (child.Guid != Asf.Guid.AsfPaddingObject)
{
output.Add(child.Render());
child_count++;
}
}
long size_diff = (long)output.Count + 30 -
(long)OriginalSize;
if (size_diff != 0)
{
var obj = new PaddingObject((uint)(size_diff > 0 ? 4096 : -size_diff));
output.Add(obj.Render());
child_count++;
}
output.Insert(0, reserved);
output.Insert(0, RenderDWord(child_count));
return(Render(output));
}
/// <summary>
/// Renders the current instance, including its children, to
/// a new <see cref="ByteVector" /> object, preceeding the
/// contents with a specified block of data.
/// </summary>
/// <param name="topData">
/// A <see cref="ByteVector" /> object containing box
/// specific header data to preceed the content.
/// </param>
/// <returns>
/// A <see cref="ByteVector" /> object containing the
/// rendered version of the current instance.
/// </returns>
protected virtual ByteVector Render(ByteVector topData)
{
bool free_found = false;
ByteVector output = new ByteVector();
if (Children != null)
{
foreach (Box box in Children)
{
if (box.GetType() == typeof(
IsoFreeSpaceBox))
{
free_found = true;
}
else
{
output.Add(box.Render());
}
}
}
else if (Data != null)
{
output.Add(Data);
}
// If there was a free, don't take it away, and let meta
// be a special case.
if (free_found || BoxType == Mpeg4.BoxType.Meta)
{
long size_difference = DataSize - output.Count;
// If we have room for free space, add it so we
// don't have to resize the file.
if (header.DataSize != 0 && size_difference >= 8)
{
output.Add((new IsoFreeSpaceBox(
size_difference)).Render());
}
// If we're getting bigger, get a lot bigger so
// we might not have to again.
else
{
output.Add((new IsoFreeSpaceBox(2048
)).Render());
}
}
// Adjust the header's data size to match the content.
header.DataSize = topData.Count + output.Count;
// Render the full box.
output.Insert(0, topData);
output.Insert(0, header.Render());
return(output);
}
public override ByteVector Render()
{
ByteVector data = new ByteVector();
foreach (TagLib.Asf.Object obj2 in this.children)
{
data.Add(obj2.Render());
}
data.Insert(0, TagLib.Asf.Object.RenderDWord((uint) data.Count));
data.Insert(0, TagLib.Asf.Object.RenderWord(6));
data.Insert(0, TagLib.Asf.Guid.AsfReserved1.ToByteArray());
return base.Render(data);
}
protected override ByteVector RenderFields(byte version)
{
ByteVector data = ByteVector.FromULong(play_count);
while (data.Count > 0 && data[0] == 0)
{
data.RemoveAt(0);
}
data.Insert(0, rating);
data.Insert(0, 0);
data.Insert(0, ByteVector.FromString(user, StringType.Latin1));
return(data);
}
public override ByteVector Render()
{
ByteVector output = new ByteVector();
foreach (Object child in children)
{
output.Add(child.Render());
}
output.Insert(0, RenderDWord((uint)output.Count));
output.Insert(0, RenderWord(6));
output.Insert(0, Asf.Guid.AsfReserved1.ToByteArray());
return(Render(output));
}
public override ByteVector Render(bool is_bigendian, uint offset, out ushort type, out uint count)
{
ByteVector data = new ByteVector();
ByteVector offset_data = new ByteVector();
uint data_offset = offset + (uint)(4 * Values.Length);
for (int i = 0; i < Values.Length; i++)
{
uint new_offset = (uint)(data_offset + data.Count);
file.Seek(Values[i], SeekOrigin.Begin);
data.Add(file.ReadBlock((int)byte_counts[i]));
Values[i] = new_offset;
offset_data.Add(ByteVector.FromUInt(new_offset, is_bigendian));
}
if (Values.Length > 1)
{
data.Insert(0, offset_data);
}
else
{
Values[0] = offset;
}
while (data.Count < 4)
{
data.Add(0x00);
}
type = (ushort)IFDEntryType.Long;
count = (uint)Values.Length;
return(data);
}
public new ByteVector Render()
{
ByteVector output = new ByteVector();
output = _data;
output.Insert(0, Header.Render());
return output;
}
/// <summary>
/// Unsynchronizes a <see cref="ByteVector" /> object by
/// inserting empty bytes where necessary.
/// </summary>
/// <param name="data">
/// A <see cref="ByteVector" /> object to unsynchronize.
/// </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="data" /> is <see langword="null" />.
/// </exception>
public static void UnsynchByteVector (ByteVector data)
{
if (data == null)
throw new ArgumentNullException (nameof(data));
for (int i = data.Count - 2; i >= 0; i --)
if (data [i] == 0xFF && (data [i+1] == 0 ||
(data [i+1] & 0xE0) != 0))
data.Insert (i+1, 0);
}
public ByteVector Render(bool is_bigendian, uint offset, out ushort type, out uint count)
{
type = (ushort)IFDEntryType.Undefined;
var renderer = new IFDRenderer(this.is_bigendian ?? is_bigendian, Structure, absolute_offset?offset + ifd_offset:ifd_offset);
ByteVector data = renderer.Render();
data.Insert(0, prefix);
count = (uint)data.Count;
return(data);
}
/// <summary>
/// Renders the current instance to a <see cref="ByteVector"/>
/// </summary>
/// <param name="is_bigendian">
/// A <see cref="System.Boolean"/> indicating the endianess for rendering.
/// </param>
/// <param name="offset">
/// A <see cref="System.UInt32"/> with the offset, the data is stored.
/// </param>
/// <param name="type">
/// A <see cref="System.UInt16"/> the ID of the type, which is rendered
/// </param>
/// <param name="count">
/// A <see cref="System.UInt32"/> with the count of the values which are
/// rendered.
/// </param>
/// <returns>
/// A <see cref="ByteVector"/> with the rendered data.
/// </returns>
public override ByteVector Render(bool is_bigendian, uint offset, out ushort type, out uint count)
{
// The StripOffsets are an array of offsets, where the image data can be found.
// We store the offsets and behind the offsets the image data is stored. Therfore,
// the ByteVector data first collects the image data and the offsets itself are
// collected by offset_data. Then both are concatenated.
ByteVector data = new ByteVector();
ByteVector offset_data = new ByteVector();
// every offset needs 4 byte, we need to reserve the bytes.
uint data_offset = offset + (uint)(4 * Values.Length);
for (int i = 0; i < Values.Length; i++)
{
uint new_offset = (uint)(data_offset + data.Count);
file.Seek(Values[i], SeekOrigin.Begin);
data.Add(file.ReadBlock((int)byte_counts[i]));
// update strip offset data to new offset
Values[i] = new_offset;
offset_data.Add(ByteVector.FromUInt(new_offset, is_bigendian));
}
// If the StripOffsets only consists of one offset, this doesn't work, because this offset
// should be stored inside the IFD as a value. But, because of the additional image data,
// it is not stored there. We need to fix this, that the offset is adjusted correctly.
// Therefore, the offset_data is only added if it contains more than one value.
// Then, the offset is set correctly. (However, we need to ensure, that the image data
// consists at least of 4 bytes, which is probably the case every time, but to be sure ...)
// However, the strip offset in the array must also be adjusted, if the offset_data is ignored.
if (Values.Length > 1)
{
data.Insert(0, offset_data);
}
else
{
Values[0] = offset;
}
while (data.Count < 4)
{
data.Add(0x00);
}
// the entry is a single long entry where the value is an offset to the data
// the offset is automatically updated by the renderer.
type = (ushort)IFDEntryType.Long;
count = (uint)Values.Length;
return(data);
}
public virtual ByteVector Render(byte version)
{
if (version < 4)
{
Flags &= ~(FrameFlags.DataLengthIndicator | FrameFlags.Unsynchronisation);
}
if (version < 3)
{
Flags &= ~(FrameFlags.Compression | FrameFlags.Encryption | FrameFlags.FileAlterPreservation | FrameFlags.GroupingIdentity | FrameFlags.ReadOnly | FrameFlags.TagAlterPreservation);
}
ByteVector field_data = RenderFields(version);
if (field_data.Count == 0)
{
return(new ByteVector());
}
ByteVector front_data = new ByteVector();
if ((Flags & (FrameFlags.Compression | FrameFlags.DataLengthIndicator)) != 0)
{
front_data.Add(ByteVector.FromUInt((uint)field_data.Count));
}
if ((Flags & FrameFlags.GroupingIdentity) != 0)
{
front_data.Add(group_id);
}
if ((Flags & FrameFlags.Encryption) != 0)
{
front_data.Add(encryption_id);
}
if ((Flags & FrameFlags.Compression) != 0)
{
throw new NotImplementedException("Compression not yet supported");
}
if ((Flags & FrameFlags.Encryption) != 0)
{
throw new NotImplementedException("Encryption not yet supported");
}
if ((Flags & FrameFlags.Unsynchronisation) != 0)
{
SynchData.UnsynchByteVector(field_data);
}
if (front_data.Count > 0)
{
field_data.Insert(0, front_data);
}
header.FrameSize = (uint)field_data.Count;
ByteVector header_data = header.Render(version);
header_data.Add(field_data);
return(header_data);
}
public override ByteVector Render()
{
ByteVector data = new ByteVector();
uint num = 0;
foreach (TagLib.Asf.Object obj2 in this.children)
{
if (obj2.Guid != TagLib.Asf.Guid.AsfPaddingObject)
{
data.Add(obj2.Render());
num++;
}
}
long num2 = (data.Count + 30L) - ((long) base.OriginalSize);
if (num2 != 0)
{
data.Add(new PaddingObject((num2 <= 0L) ? ((uint) -num2) : ((uint) 0x1000L)).Render());
num++;
}
data.Insert(0, this.reserved);
data.Insert(0, TagLib.Asf.Object.RenderDWord(num));
return base.Render(data);
}
public static void UnsynchByteVector(ByteVector data)
{
if (data == null)
{
throw new ArgumentNullException("data");
}
for (int i = data.Count - 2; i >= 0; i--)
{
if ((data[i] == 0xff) && ((data[i + 1] == 0) || ((data[i + 1] & 0xe0) != 0)))
{
data.Insert(i + 1, (byte) 0);
}
}
}
public ByteVector Render()
{
ByteVector data = new ByteVector();
uint item_count = 0;
foreach (Item item in items)
{
data.Add(item.Render());
item_count++;
}
footer.ItemCount = item_count;
footer.TagSize = (uint)(data.Count + Footer.Size);
HeaderPresent = true;
data.Insert(0, footer.RenderHeader());
data.Add(footer.RenderFooter());
return(data);
}
public ByteVector Render()
{
bool has_footer = (header.Flags & HeaderFlags.FooterPresent) != 0;
bool unsynchAtFrameLevel = (header.Flags & HeaderFlags.Unsynchronisation) != 0 && Version >= 4;
bool unsynchAtTagLevel = (header.Flags & HeaderFlags.Unsynchronisation) != 0 && Version < 4;
header.MajorVersion = has_footer?(byte)4:Version;
ByteVector tag_data = new ByteVector();
header.Flags &= ~HeaderFlags.ExtendedHeader;
foreach (Frame frame in frame_list)
{
if (unsynchAtFrameLevel)
{
frame.Flags |= FrameFlags.Unsynchronisation;
}
if ((frame.Flags & FrameFlags.TagAlterPreservation) != 0)
{
continue;
}
try
{
tag_data.Add(frame.Render(header.MajorVersion));
}
catch (NotImplementedException)
{
}
}
if (unsynchAtTagLevel)
{
SynchData.UnsynchByteVector(tag_data);
}
if (!has_footer)
{
tag_data.Add(new ByteVector((int)((tag_data.Count < header.TagSize)?(header.TagSize - tag_data.Count):1024)));
}
header.TagSize = (uint)tag_data.Count;
tag_data.Insert(0, header.Render());
if (has_footer)
{
tag_data.Add(new Footer(header).Render());
}
return(tag_data);
}
/// <summary>
/// Renders the current instance, encoded in a specified
/// ID3v2 version.
/// </summary>
/// <param name="version">
/// A <see cref="byte" /> value specifying the version of
/// ID3v2 to use when encoding the current instance.
/// </param>
/// <returns>
/// A <see cref="ByteVector" /> object containing the
/// rendered version of the current instance.
/// </returns>
/// <exception cref="NotImplementedException">
/// The current instance uses some feature that cannot be
/// implemented in the specified ID3v2 version, or uses a
/// feature, such as encryption or compression, which is not
/// yet implemented in the library.
/// </exception>
public virtual ByteVector Render(byte version)
{
// Remove flags that are not supported by older versions
// of ID3v2.
if (version < 4)
{
Flags &= ~(FrameFlags.DataLengthIndicator |
FrameFlags.Unsychronisation);
}
if (version < 3)
{
Flags &= ~(FrameFlags.Compression |
FrameFlags.Encryption |
FrameFlags.FileAlterPreservation |
FrameFlags.GroupingIdentity |
FrameFlags.ReadOnly |
FrameFlags.TagAlterPreservation);
}
ByteVector field_data = RenderFields(version);
// If we don't have any content, don't render anything.
// This will cause the frame to not be rendered.
if (field_data.Count == 0)
{
return(new ByteVector());
}
ByteVector front_data = new ByteVector();
if ((Flags & (FrameFlags.Compression |
FrameFlags.DataLengthIndicator)) != 0)
{
front_data.Add(ByteVector.FromUInt((uint)
field_data.Count));
}
if ((Flags & FrameFlags.GroupingIdentity) != 0)
{
front_data.Add(group_id);
}
if ((Flags & FrameFlags.Encryption) != 0)
{
front_data.Add(encryption_id);
}
// FIXME: Implement compression.
if ((Flags & FrameFlags.Compression) != 0)
{
throw new NotImplementedException(
"Compression not yet supported");
}
// FIXME: Implement encryption.
if ((Flags & FrameFlags.Encryption) != 0)
{
throw new NotImplementedException(
"Encryption not yet supported");
}
if ((Flags & FrameFlags.Unsychronisation) != 0)
{
SynchData.UnsynchByteVector(field_data);
}
if (front_data.Count > 0)
{
field_data.Insert(0, front_data);
}
header.FrameSize = (uint)field_data.Count;
ByteVector header_data = header.Render(version);
header_data.Add(field_data);
return(header_data);
}
/// <summary>
/// Renders the current instance as a raw ASF object.
/// </summary>
/// <returns>
/// A <see cref="ByteVector" /> object containing the
/// rendered version of the current instance.
/// </returns>
public override ByteVector Render()
{
ByteVector output = new ByteVector ();
uint child_count = 0;
foreach (Object child in children)
if (child.Guid != Asf.Guid.AsfPaddingObject) {
output.Add (child.Render ());
child_count ++;
}
long size_diff = (long) output.Count + 30 -
(long) OriginalSize;
if (size_diff != 0) {
PaddingObject obj = new PaddingObject ((uint)
(size_diff > 0 ? 4096 : - size_diff));
output.Add (obj.Render ());
child_count ++;
}
output.Insert (0, reserved);
output.Insert (0, RenderDWord (child_count));
return Render (output);
}
/// <summary>
/// Unsynchronizes a <see cref="ByteVector" /> object by
/// inserting empty bytes where necessary.
/// </summary>
/// <param name="data">
/// A <see cref="ByteVector" /> object to unsynchronize.
/// </param>
/// <exception cref="ArgumentNullException">
/// <paramref name="data" /> is <see langword="null" />.
/// </exception>
public static void UnsynchByteVector (ByteVector data)
{
if (data == null)
throw new ArgumentNullException ("data");
for (int i = data.Count - 2; i >= 0; i --)
if (data [i] == 0xFF && (data [i+1] == 0 ||
(data [i+1] & 0xE0) != 0))
data.Insert (i+1, 0);
}
/// <summary>
/// Renders the current instance as a raw ASF object.
/// </summary>
/// <returns>
/// A <see cref="ByteVector" /> object containing the
/// rendered version of the current instance.
/// </returns>
public override ByteVector Render ()
{
ByteVector output = new ByteVector ();
foreach (Object child in children)
output.Add (child.Render ());
output.Insert (0, RenderDWord ((uint) output.Count));
output.Insert (0, RenderWord (6));
output.Insert (0, Asf.Guid.AsfReserved1.ToByteArray ());
return Render (output);
}
/// <summary>
/// Renders the current instance, including its children, to
/// a new <see cref="ByteVector" /> object, preceeding the
/// contents with a specified block of data.
/// </summary>
/// <param name="topData">
/// A <see cref="ByteVector" /> object containing box
/// specific header data to preceed the content.
/// </param>
/// <returns>
/// A <see cref="ByteVector" /> object containing the
/// rendered version of the current instance.
/// </returns>
protected virtual ByteVector Render (ByteVector topData)
{
bool free_found = false;
ByteVector output = new ByteVector ();
if (Children != null)
foreach (Box box in Children)
if (box.GetType () == typeof (
IsoFreeSpaceBox))
free_found = true;
else
output.Add (box.Render ());
else if (Data != null)
output.Add (Data);
// If there was a free, don't take it away, and let meta
// be a special case.
if (free_found || BoxType == Mpeg4.BoxType.Meta) {
long size_difference = DataSize - output.Count;
// If we have room for free space, add it so we
// don't have to resize the file.
if (header.DataSize != 0 && size_difference >= 8)
output.Add ((new IsoFreeSpaceBox (
size_difference)).Render ());
// If we're getting bigger, get a lot bigger so
// we might not have to again.
else
output.Add ((new IsoFreeSpaceBox (2048
)).Render ());
}
// Adjust the header's data size to match the content.
header.DataSize = topData.Count + output.Count;
// Render the full box.
output.Insert (0, topData);
output.Insert (0, header.Render ());
return output;
}
protected virtual ByteVector Render(ByteVector topData)
{
bool flag = false;
ByteVector vector = new ByteVector();
if (this.Children != null)
{
IEnumerator<Box> enumerator = this.Children.GetEnumerator();
try
{
while (enumerator.MoveNext())
{
Box current = enumerator.Current;
if (current.GetType() == typeof(IsoFreeSpaceBox))
{
flag = true;
}
else
{
vector.Add(current.Render());
}
}
}
finally
{
if (enumerator == null)
{
}
enumerator.Dispose();
}
}
else if (this.Data != null)
{
vector.Add(this.Data);
}
if (flag || (this.BoxType == TagLib.Mpeg4.BoxType.Meta))
{
long padding = this.DataSize - vector.Count;
if ((this.header.DataSize != 0) && (padding >= 8L))
{
vector.Add(new IsoFreeSpaceBox(padding).Render());
}
else
{
vector.Add(new IsoFreeSpaceBox(0x800L).Render());
}
}
this.header.DataSize = topData.Count + vector.Count;
vector.Insert(0, topData);
vector.Insert(0, this.header.Render());
return vector;
}
