/// <summary>
/// Saves the changes made in the current instance to the
/// file it represents.
/// </summary>
public override void Save()
{
// Boilerplate
PreSave();
Mode = AccessMode.Write;
try {
ByteVector data = new ByteVector();
// Enclose the Id3v2 tag in an "id3 " item and
// embed it as the first tag.
if (id32_tag != null)
{
ByteVector tag_data = id32_tag.Render();
if (tag_data.Count > 10)
{
if (tag_data.Count % 2 == 1)
{
tag_data.Add(0);
}
data.Add("id3 ");
data.Add(ByteVector.FromUInt(
(uint)tag_data.Count,
false));
data.Add(tag_data);
}
}
// Embed "INFO" as the second tag.
if (info_tag != null)
{
data.Add(info_tag.RenderEnclosed());
}
// Embed "MID " as the third tag.
if (mid_tag != null)
{
data.Add(mid_tag.RenderEnclosed());
}
// Embed the DivX tag in "IDVX and embed it as
// the fourth tag.
if (divx_tag != null && !divx_tag.IsEmpty)
{
ByteVector tag_data = divx_tag.Render();
data.Add("IDVX");
data.Add(ByteVector.FromUInt(
(uint)tag_data.Count, false));
data.Add(tag_data);
}
// Read the file to determine the current RIFF
// size and the area tagging does in.
uint riff_size;
long tag_start, tag_end;
Read(false, ReadStyle.None, out riff_size,
out tag_start, out tag_end);
// If tagging info cannot be found, place it at
// the end of the file.
if (tag_start < 12 || tag_end < tag_start)
{
tag_start = tag_end = Length;
}
int length = (int)(tag_end - tag_start);
// If the tag isn't at the end of the file,
// try appending using padding to improve
// write time now or for subsequent writes.
if (tag_end != Length)
{
int padding_size = length - data.Count - 8;
if (padding_size < 0)
{
padding_size = 1024;
}
data.Add("JUNK");
data.Add(ByteVector.FromUInt(
(uint)padding_size, false));
data.Add(new ByteVector(padding_size));
}
// Insert the tagging data.
Insert(data, tag_start, length);
// If the data size changed, and the tagging
// data is within the RIFF portion of the file,
// update the riff size.
if (data.Count - length != 0 &&
tag_start <= riff_size)
{
Insert(ByteVector.FromUInt((uint)
(riff_size + data.Count - length),
false), 4, 4);
}
// Update the tag types.
TagTypesOnDisk = TagTypes;
} finally {
Mode = AccessMode.Closed;
}
}
/// <summary>
/// Saves the changes made in the current instance to the
/// file it represents.
/// </summary>
public override void Save()
{
Mode = AccessMode.Write;
try
{
ByteVector data = new ByteVector();
// Add the ID3 chunk and ID32 tag to the vector
if (tag != null)
{
ByteVector tag_data = tag.Render();
if (tag_data.Count > 10)
{
if (tag_data.Count % 2 == 1)
{
tag_data.Add(0);
}
data.Add("ID3 ");
data.Add(ByteVector.FromUInt(
(uint)tag_data.Count,
true));
data.Add(tag_data);
}
}
// Read the file to determine the current AIFF
// size and the area tagging is in.
uint aiff_size;
long tag_start, tag_end;
Read(false, ReadStyle.None, out aiff_size,
out tag_start, out tag_end);
// If tagging info cannot be found, place it at
// the end of the file.
if (tag_start < 12 || tag_end < tag_start)
{
tag_start = tag_end = Length;
}
int length = (int)(tag_end - tag_start + 8);
// Insert the tagging data.
Insert(data, tag_start, length);
// If the data size changed update the aiff size.
if (data.Count - length != 0 &&
tag_start <= aiff_size)
{
// Depending, if a Tag has been added or removed,
// the length needs to be adjusted
if (tag == null)
{
length -= 16;
}
else
{
length -= 8;
}
Insert(ByteVector.FromUInt((uint)
(aiff_size + data.Count - length),
true), 4, 4);
}
// Update the tag types.
TagTypesOnDisk = TagTypes;
}
finally
{
Mode = AccessMode.Closed;
}
}
public override void Save()
{
Mode = AccessMode.Write;
try {
ByteVector data = new ByteVector();
if (id32_tag != null)
{
ByteVector tag_data = id32_tag.Render();
if (tag_data.Count > 10)
{
if (tag_data.Count % 2 == 1)
{
tag_data.Add(0);
}
data.Add("ID32");
data.Add(ByteVector.FromUInt(
(uint)tag_data.Count,
false));
data.Add(tag_data);
}
}
if (info_tag != null)
{
data.Add(info_tag.RenderEnclosed());
}
if (mid_tag != null)
{
data.Add(mid_tag.RenderEnclosed());
}
if (divx_tag != null && !divx_tag.IsEmpty)
{
ByteVector tag_data = divx_tag.Render();
data.Add("IDVX");
data.Add(ByteVector.FromUInt(
(uint)tag_data.Count, false));
data.Add(tag_data);
}
uint riff_size;
long tag_start, tag_end;
Read(false, ReadStyle.None, out riff_size,
out tag_start, out tag_end);
if (tag_start < 12 || tag_end < tag_start)
{
tag_start = tag_end = Length;
}
int length = (int)(tag_end - tag_start);
int padding_size = length - data.Count - 8;
if (padding_size < 0)
{
padding_size = 1024;
}
data.Add("JUNK");
data.Add(ByteVector.FromUInt(
(uint)padding_size, false));
data.Add(new ByteVector(padding_size));
Insert(data, tag_start, length);
if (data.Count - length != 0 &&
tag_start <= riff_size)
{
Insert(ByteVector.FromUInt((uint)
(riff_size + data.Count - length),
false), 4, 4);
}
TagTypesOnDisk = TagTypes;
} finally {
Mode = AccessMode.Closed;
}
}
