本文整理汇总了C#中ByteBuffer.Rewind方法的典型用法代码示例。如果您正苦于以下问题：C# ByteBuffer.Rewind方法的具体用法？C# ByteBuffer.Rewind怎么用？C# ByteBuffer.Rewind使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ByteBuffer的用法示例。
在下文中一共展示了ByteBuffer.Rewind方法的12个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: CanHandleData
public bool CanHandleData(ByteBuffer data)
{
if (data.Limit == 0)
return false;// Empty buffer
byte first = data.Get();
bool result = ((first & 0x0f) == VideoCodec.H263.Id);
data.Rewind();
return result;
}示例2: GetVideoCodec
/// <summary>
/// Create and return new video codec applicable for byte buffer data
/// </summary>
/// <param name="data">Byte buffer data.</param>
/// <returns>Video codec.</returns>
public IVideoStreamCodec GetVideoCodec(ByteBuffer data)
{
IVideoStreamCodec result = null;
//get the codec identifying byte
int codecId = data.Get() & 0x0f;
switch (codecId)
{
case 2: //sorenson
result = new SorensonVideo();
break;
case 3: //screen video
result = new ScreenVideo();
break;
case 7: //avc/h.264 video
result = new AVCVideo();
break;
}
data.Rewind();
if (result == null)
{
IVideoStreamCodec codec;
foreach (IVideoStreamCodec storedCodec in _codecs)
{
// XXX: this is a bit of a hack to create new instances of the
// configured video codec for each stream
try
{
codec = Activator.CreateInstance(storedCodec.GetType()) as IVideoStreamCodec;
}
catch (Exception ex)
{
log.Error("Could not create video codec instance.", ex);
continue;
}
log.Info("Trying codec " + codec);
if (codec.CanHandleData(data))
{
result = codec;
break;
}
}
}
return result;
}示例3: OSArrayTag
/// <summary>
/// Creates TAG and sets its <c>size</c> as a size of byte array
/// </summary>
/// <param name="Type">The Matlab array type</param>
/// <param name="Data"><c>ByteBuffer</c></param>
public OSArrayTag( int Type, ByteBuffer Data )
: base(Type, Data.Limit)
{
_data = Data;
_data.Rewind();
_compressed = Data.Limit <= 4;
_padding = GetPadding( Data.Limit, _compressed );
}示例4: CopyPixelsToBuffer
public void CopyPixelsToBuffer(ByteBuffer buffer)
{
sbyte[] m_data = new sbyte[(this.m_data.Width * this.m_data.Height) * 4];
this.m_data.GetData<sbyte>(m_data);
buffer.Put(m_data, 0, m_data.Length);
buffer.Rewind();
}示例5: AddData
public bool AddData(ByteBuffer data)
{
if (data.Limit == 0)
return false;// Empty buffer
if (!CanHandleData(data))
return false;
byte first = data.Get();
data.Rewind();
if ((first & 0xf0) != VideoCodec.FLV_FRAME_KEY)
return true;// Not a keyframe
// Store last keyframe
_dataCount = data.Limit;
if (_blockSize < _dataCount)
{
_blockSize = _dataCount;
_blockData = new byte[_blockSize];
}
data.Read(_blockData, 0, _dataCount);
data.Rewind();
return true;
}示例6: AddData
public bool AddData(ByteBuffer data) {
if (data.Limit == 0)
return false;// Empty buffer
if (!CanHandleData(data))
return false;
data.Get();
UpdateSize(data);
int idx = 0;
int pos = 0;
byte[] tmpData = new byte[_blockDataSize];
int countBlocks = _blockCount;
while (data.Remaining > 0 && countBlocks > 0) {
short size = data.GetShort();
countBlocks--;
if (size == 0) {
// Block has not been modified
idx += 1;
pos += _blockDataSize;
continue;
}
// Store new block data
_blockSize[idx] = size;
data.Read(tmpData, 0, size);
Array.Copy(tmpData, 0, _blockData, pos, size);
idx += 1;
pos += _blockDataSize;
}
data.Rewind();
return true;
}示例7: ReadToByteBuffer
/// <summary>
/// Reads the data into a <c>ByteBuffer</c>.
/// </summary>
/// <param name="dest">The destination <c>ByteBuffer</c></param>
/// <param name="elements">The number of elements to read into a buffer</param>
/// <param name="storage">The backing <c>ByteStorageSupport</c> that
/// gives information on how data should be interpreted</param>
/// <returns>Reference to the destination <c>ByteBuffer</c></returns>
/// <exception cref="NotSupportedException">When attempting to read an unsupported
/// class type from the buffer</exception>
public ByteBuffer ReadToByteBuffer( ByteBuffer dest, int elements,
ByteStorageSupport storage )
{
int bytesAllocated = storage.GetBytesAllocated;
int size = elements * bytesAllocated;
// direct buffer copy
if( MatDataTypes.SizeOf( _type ) == bytesAllocated )
{
int bufMaxSize = 1024;
int bufSize = Math.Min( (int)(_buf.BaseStream.Length - _buf.BaseStream.Position), bufMaxSize );
int bufPos = (int)_buf.BaseStream.Position;
byte[] tmp = new byte[ bufSize ];
while( dest.Remaining() > 0 )
{
int length = Math.Min(dest.Remaining(), tmp.Length);
_buf.Read( tmp, 0, length );
dest.Put( tmp, 0, length );
}
_buf.BaseStream.Position = bufPos + size;
}
else
{
// Because Matlab writes data not respectively to the declared
// matrix type, the reading is not straight forward (as above)
Type clazz = storage.GetStorageType;
while( dest.Remaining() > 0 )
{
if( clazz.Equals( typeof(double) ) )
{
dest.PutDouble( ReadDouble() );
continue;
}
if( clazz.Equals( typeof(byte) ) )
{
dest.PutDouble( ReadByte() );
continue;
}
if( clazz.Equals( typeof(int) ) )
{
dest.PutDouble( ReadInt() );
continue;
}
if( clazz.Equals( typeof(long) ) )
{
dest.PutDouble( ReadLong() );
continue;
}
throw new NotSupportedException("Not supported buffer reader for " + clazz );
}
}
dest.Rewind();
return dest;
}示例8: AddData
public bool AddData(ByteBuffer data)
{
if (data.Limit == 0)
return true;
if (!CanHandleData(data))
return false;
data.Rewind();
byte frameType = data.Get();
data.Rewind();
if ((frameType & 0xf0) != VideoCodec.FLV_FRAME_KEY)
return true;// Not a keyframe
//If we don't have the AVCDecoderConfigurationRecord stored...
if (_blockDataAVCDCR == null)
{
data.Get();//FT
data.Get();//CODECID
byte AVCPacketType = data.Get();
//Sequence Header / here comes a AVCDecoderConfigurationRecord
if (log.IsDebugEnabled)
log.Debug(string.Format("AVCPacketType: {0}", AVCPacketType));
if (AVCPacketType == 0)
{
data.Rewind();
// Store AVCDecoderConfigurationRecord data
_dataCountAVCDCR = data.Limit;
if (_blockSizeAVCDCR < _dataCountAVCDCR)
{
_blockSizeAVCDCR = _dataCountAVCDCR;
_blockDataAVCDCR = new byte[_blockSizeAVCDCR];
}
data.Read(_blockDataAVCDCR, 0, _dataCountAVCDCR);
}
}
data.Rewind();
// Store last keyframe
_dataCountLKF = data.Limit;
if (_blockSizeLKF < _dataCountLKF)
{
_blockSizeLKF = _dataCountLKF;
_blockDataLKF = new byte[_blockSizeLKF];
}
data.Read(_blockDataLKF, 0, _dataCountLKF);
data.Rewind();
return true;
}示例9: PromptUS
public static String PromptUS(ByteBuffer bb, int maxlen)
{
if (bb.Length < 2) {
return "";
}
var sb = new StringBuilder((int) bb.Length);
bb.Rewind();
sb.Append(bb.ReadInt16() & 0xffff);
while (bb.Remaining >= 2 && sb.Length < maxlen) {
sb.Append('\\').Append(bb.ReadInt16() & 0xffff);
}
return Truncate(sb.ToString(), maxlen);
}示例10: PromptUL
public static String PromptUL(ByteBuffer bb, int maxlen)
{
if (bb.Length < 4) {
return "";
}
var sb = new StringBuilder((int) bb.Length);
bb.Rewind();
sb.Append(bb.ReadInt32() & (int) (- (0x100000000 - 0xffffffffL)));
while (bb.Remaining >= 4 && sb.Length < maxlen) {
sb.Append('\\').Append(bb.ReadInt32() & (int) (- (0x100000000 - 0xffffffffL)));
}
return Truncate(sb.ToString(), maxlen);
}示例11: PromptOW
public static String PromptOW(ByteBuffer bb, int maxlen)
{
int l = (int) bb.Length/2*5 - 1;
if (l < 0) {
return "";
}
var sb = new StringBuilder(l);
bb.Rewind();
sb.Append(String.Format("{0:X4}", bb.ReadInt16()));
while (bb.Remaining >= 2 && sb.Length < maxlen) {
sb.Append('\\');
sb.Append(String.Format("{0:X4}", bb.ReadInt16()));
}
return Truncate(sb.ToString(), maxlen);
}示例12: PromptFD
public static String PromptFD(ByteBuffer bb, int maxlen)
{
if (bb.Length < 8) {
return "";
}
var sb = new StringBuilder((int) bb.Length);
bb.Rewind();
sb.Append(bb.ReadDouble());
while (bb.Remaining >= 8 && sb.Length < maxlen) {
sb.Append('\\').Append(bb.ReadDouble());
}
return Truncate(sb.ToString(), maxlen);
}