public override void decode(MP4InputStream inStream)
{
// 10 bits objectDescriptorID, 1 bit url flag, 1 bit
// includeInlineProfiles flag, 4 bits reserved
int x = (int)inStream.readBytes(2);
objectDescriptorID = (x >> 6) & 0x3FF;
urlPresent = ((x >> 5) & 1) == 1;
includeInlineProfiles = ((x >> 4) & 1) == 1;
if (urlPresent)
{
url = inStream.readString(size - 2);
}
else
{
odProfile = inStream.read();
sceneProfile = inStream.read();
audioProfile = inStream.read();
visualProfile = inStream.read();
graphicsProfile = inStream.read();
}
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
bool compact = type == BoxType.COMPACT_SAMPLE_SIZE_BOX;
int sampleSize;
if (compact)
{
inStream.skipBytes(3);
sampleSize = inStream.read();
}
else
{
sampleSize = (int)inStream.readBytes(4);
}
int sampleCount = (int)inStream.readBytes(4);
sampleSizes = new long[sampleCount];
if (compact)
{
// compact: sampleSize can be 4, 8 or 16 bits
if (sampleSize == 4)
{
for (int i = 0; i < sampleCount; i += 2)
{
int x = inStream.read();
sampleSizes[i] = (x >> 4) & 0xF;
sampleSizes[i + 1] = x & 0xF;
}
}
else
{
readSizes(inStream, sampleSize / 8);
}
}
else if (sampleSize == 0)
{
readSizes(inStream, 4);
}
else
{
for (int i = 0; i < sampleSizes.Length; i++)
{
sampleSizes[i] = sampleSize;
}
}
}
public override void decode(MP4InputStream inStream)
{
objectProfile = inStream.read();
//6 bits stream type, 1 bit upstream flag, 1 bit reserved
int x = inStream.read();
streamType = (x >> 2) & 0x3F;
upstream = ((x >> 1) & 1) == 1;
decodingBufferSize = (int)inStream.readBytes(3);
maxBitRate = inStream.readBytes(4);
averageBitRate = inStream.readBytes(4);
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
inStream.skipBytes(2); //pre-defined: 0
inStream.skipBytes(2); //reserved
// 3x32 pre_defined
inStream.skipBytes(4); //pre-defined: 0
inStream.skipBytes(4); //pre-defined: 0
inStream.skipBytes(4); //pre-defined: 0
width = (int)inStream.readBytes(2);
height = (int)inStream.readBytes(2);
horizontalResolution = inStream.readFixedPoint(16, 16);
verticalResolution = inStream.readFixedPoint(16, 16);
inStream.skipBytes(4); //reserved
frameCount = (int)inStream.readBytes(2);
int len = inStream.read();
compressorName = inStream.readString(len);
inStream.skipBytes(31 - len);
depth = (int)inStream.readBytes(2);
inStream.skipBytes(2); //pre-defined: -1
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
data = new byte[(int)getLeft(inStream)];
inStream.read(data, 0, data.Length);
}
public override void decode(MP4InputStream inStream)
{
configurationVersion = inStream.read();
profile = inStream.read();
profileCompatibility = (byte)inStream.read();
level = inStream.read();
//6 bits reserved, 2 bits 'length size minus one'
lengthSize = (inStream.read() & 3) + 1;
int len;
//3 bits reserved, 5 bits number of sequence parameter sets
int sequenceParameterSets = inStream.read() & 31;
sequenceParameterSetNALUnit = new byte[sequenceParameterSets][];
for (int i = 0; i < sequenceParameterSets; i++)
{
len = (int)inStream.readBytes(2);
sequenceParameterSetNALUnit[i] = inStream.readByteArray(len);
}
int pictureParameterSets = inStream.read();
pictureParameterSetNALUnit = new byte[pictureParameterSets][];
for (int i = 0; i < pictureParameterSets; i++)
{
len = (int)inStream.readBytes(2);
pictureParameterSetNALUnit[i] = inStream.readByteArray(len);
}
}
protected void decodeCommon(MP4InputStream inStream)
{
vendor = inStream.readBytes(4);
decoderVersion = inStream.read();
}
public override void decode(MP4InputStream inStream)
{
data = new byte[size];
inStream.read(data, 0, data.Length);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
trackNumber = getLeft(inStream) > 0 ? inStream.read() : -1;
}
/// <summary>
/// Decodes the given input stream by reading this box and all of its children (if any).
/// </summary>
/// <param name="inStream">an input stream</param>
public override void decode(MP4InputStream inStream)
{
version = inStream.read();
flags = (int)inStream.readBytes(3);
}