private void ProcessCompressedPart(MemoryStream stream)
{
BinaryReader reader = new BinaryReader(stream);
try
{
byte[] rect;
int nbits, totalBits, totalBytes;
nbits = reader.ReadByte() >> 3;
totalBits = nbits * 4 + 5;
totalBytes = totalBits / 8;
if (totalBits % 8 != 0)
{
totalBytes++;
}
reader.BaseStream.Seek(-1, SeekOrigin.Current);
rect = reader.ReadBytes(totalBytes);
frameRate = float.Parse(string.Format("{1}.{0}", reader.ReadByte(), reader.ReadByte()));
frameCount = Convert.ToInt32(reader.ReadInt16());
BitArray bits = new BitArray(rect);
bool[] reversedBits = new bool[bits.Length];
for (int i = 0; i < totalBytes; i++)
{
int count = 7;
for (int j = 8 * i; j < 8 * (i + 1); j++)
{
reversedBits[j + count] = bits[j];
count -= 2;
}
}
bits = new BitArray(reversedBits);
StringBuilder sbField = new StringBuilder(bits.Length);
for (int i = 0; i < bits.Length; i++)
{
sbField.Append(bits[i] ? "1" : "0");
}
string result = sbField.ToString();
string widthBinary = result.Substring(nbits + 5, nbits);
string heightBinary = result.Substring(3 * nbits + 5, nbits);
width = Convert.ToInt32(FlashInfo.BinaryToInt64(widthBinary) / 20);
height = Convert.ToInt32(FlashInfo.BinaryToInt64(heightBinary) / 20);
}
finally
{
reader.Close();
}
}
public void SetFormedioPathChange(MediaFileType mediaType)
{
string filepath = "";
string mediaId = _htmldesigner.OpenAudioDialog();//.OpenFlashDialog();
if (File.Exists(mediaId))
{
filepath = mediaId;
}
else
{
filepath = _htmldesigner.GetResourceAbsolutePath(mediaId);
}
if (mediaType == MediaFileType.Flash)
{
flashInfo = new FlashInfo(filepath);
widthNumUpDown.Value = flashInfo.Width;
heightNumUpDown.Value = flashInfo.Height;
ratio = widthNumUpDown.Value / heightNumUpDown.Value;
limitScaleCheckBox.Visible = true;
limitScaleCheckBox.Enabled = true;
}
else
{
widthNumUpDown.Value = 100;
heightNumUpDown.Value = 100;
limitScaleCheckBox.Visible = false;
}
widthUintComboBox.SelectedIndex = heightUintComboBox.SelectedIndex = 0;
//设置窗体的一些默认值
this.widthCheckBox.Checked = true;
this.heightCheckBox.Checked = true;
this.loopCheckBox.Checked = true;
this.autoPlayCheckBox.Checked = true;
MediaPath = filepath;
}