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)
{
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);
}
}
private void readSizes(MP4InputStream inStream, int len)
{
for (int i = 0; i < sampleSizes.Length; i++)
{
sampleSizes[i] = inStream.readBytes(len);
}
}
public override void decode(MP4InputStream inStream)
{
if (getLeft(inStream) < 8)
{
inStream.skipBytes(getLeft(inStream));
return;
}
base.decode(inStream);
inStream.skipBytes(8); //reserved
channelCount = (int)inStream.readBytes(2);
sampleSize = (int)inStream.readBytes(2);
inStream.skipBytes(2); //pre-defined: 0
inStream.skipBytes(2); //reserved
sampleRate = (int)inStream.readBytes(2);
inStream.skipBytes(2); //not used by samplerate
if (channelCount == 6)
{
inStream.skipBytes(16);
}
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
balance = inStream.readFixedPoint(8, 8);
inStream.skipBytes(2); //reserved
}
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);
int len = (version == 1) ? 8 : 4;
creationTime = inStream.readBytes(len);
modificationTime = inStream.readBytes(len);
timeScale = inStream.readBytes(4);
duration = BoxUtils.detectUndetermined(inStream.readBytes(len));
rate = inStream.readFixedPoint(16, 16);
volume = inStream.readFixedPoint(8, 8);
inStream.skipBytes(10); //reserved
for (int i = 0; i < 9; i++)
{
if (i < 6)
{
matrix[i] = inStream.readFixedPoint(16, 16);
}
else
{
matrix[i] = inStream.readFixedPoint(2, 30);
}
}
inStream.skipBytes(24); //reserved
nextTrackID = inStream.readBytes(4);
}
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)
{
base.decode(inStream);
int entryCount = (int)inStream.readBytes(4);
readChildren(inStream, entryCount);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
schemeType = (int)inStream.readBytes(4);
schemeVersion = (int)inStream.readBytes(4);
schemeURI = (flags & 1) == 1 ? inStream.readUTFString((int)getLeft(inStream)) : null;
}
/// <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)
{
majorBrand = inStream.readString(4);
minorVersion = inStream.readString(4);
compatibleBrands = new string[(int)getLeft(inStream) / 4];
for (int i = 0; i < compatibleBrands.Length; i++)
{
compatibleBrands[i] = inStream.readString(4);
}
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
inFile = (flags & 1) == 1;
if (!inFile)
{
location = inStream.readUTFString((int)getLeft(inStream));
}
}
public override void decode(MP4InputStream inStream)
{
// some encoders (such as Android's MexiaMuxer) do not include the version and flags fields in the meta box, instead going directly to the hdlr box
var possibleType = (BoxType)(int)(uint)inStream.peekBytes(8);
if (possibleType != BoxType.HANDLER_BOX)
{
base.decode(inStream);
}
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
int entryCount = (int)inStream.readBytes(4);
sampleNumbers = new long[entryCount];
for (int i = 0; i < entryCount; i++)
{
sampleNumbers[i] = inStream.readBytes(4);
}
}
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)
{
base.decode(inStream);
int len = (type == BoxType.CHUNK_LARGE_OFFSET_BOX) ? 8 : 4;
int entryCount = (int)inStream.readBytes(4);
chunks = new long[entryCount];
for (int i = 0; i < entryCount; i++)
{
chunks[i] = inStream.readBytes(len);
}
}
public override void decode(MP4InputStream inStream)
{
// 10 bits objectDescriptorID, 1 bit url flag, 5 bits reserved
int x = (int)inStream.readBytes(2);
objectDescriptorID = (x >> 6) & 0x3FF;
urlPresent = ((x >> 5) & 1) == 1;
if (urlPresent)
{
url = inStream.readString(size - 2);
}
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
int len = (version == 1) ? 8 : 4;
creationTime = inStream.readBytes(len);
modificationTime = inStream.readBytes(len);
timeScale = inStream.readBytes(4);
duration = BoxUtils.detectUndetermined(inStream.readBytes(len));
language = BoxUtils.getLanguageCode(inStream.readBytes(2));
inStream.skipBytes(2); //pre-defined: 0
}
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)
{
if (parent.getType() == BoxType.USER_DATA_BOX)
{
base.decode(inStream);
//1 bit padding, 5*3 bits language code (ISO-639-2/T)
languageCode = BoxUtils.getLanguageCode(inStream.readBytes(2));
notice = inStream.readUTFString((int)getLeft(inStream));
}
else if (parent.getType() == BoxType.ITUNES_META_LIST_BOX)
{
readChildren(inStream);
}
}
public override void decode(MP4InputStream inStream)
{
if (parent.getType() == BoxType.UNKNOWN_HNTI_BOX)
{
// mpeg4 iod
string content = inStream.readString((int)getLeft(inStream));
}
else
{
base.decode(inStream);
hintTrackVersion = (int)inStream.readBytes(2);
highestCompatibleVersion = (int)inStream.readBytes(2);
maxPacketSize = inStream.readBytes(4);
}
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
int entryCount = (int)inStream.readBytes(4);
firstChunks = new long[entryCount];
samplesPerChunk = new long[entryCount];
sampleDescriptionIndex = new long[entryCount];
for (int i = 0; i < entryCount; i++)
{
firstChunks[i] = inStream.readBytes(4);
samplesPerChunk[i] = inStream.readBytes(4);
sampleDescriptionIndex[i] = inStream.readBytes(4);
}
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
int entryCount = (int)inStream.readBytes(4);
int len = (version == 1) ? 8 : 4;
segmentDuration = new long[entryCount];
mediaTime = new long[entryCount];
mediaRate = new double[entryCount];
for (int i = 0; i < entryCount; i++)
{
segmentDuration[i] = inStream.readBytes(len);
mediaTime[i] = inStream.readBytes(len);
//int(16) mediaRate_integer;
//int(16) media_rate_fraction = 0;
mediaRate[i] = inStream.readFixedPoint(16, 16);
}
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
enabled = (flags & 1) == 1;
inMovie = (flags & 2) == 2;
inPreview = (flags & 4) == 4;
int len = (version == 1) ? 8 : 4;
creationTime = inStream.readBytes(len);
modificationTime = inStream.readBytes(len);
trackID = (int)inStream.readBytes(4);
inStream.skipBytes(4); //reserved
duration = BoxUtils.detectUndetermined(inStream.readBytes(len));
inStream.skipBytes(8); //reserved
layer = (int)inStream.readBytes(2);
alternateGroup = (int)inStream.readBytes(2);
volume = inStream.readFixedPoint(8, 8);
inStream.skipBytes(2); //reserved
for (int i = 0; i < 9; i++)
{
if (i < 6)
{
matrix[i] = inStream.readFixedPoint(16, 16);
}
else
{
matrix[i] = inStream.readFixedPoint(2, 30);
}
}
width = inStream.readFixedPoint(16, 16);
height = inStream.readFixedPoint(16, 16);
}
protected void decodeCommon(MP4InputStream inStream)
{
vendor = inStream.readBytes(4);
decoderVersion = inStream.read();
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
objectDescriptor = Descriptor.createDescriptor(inStream);
}
public override void decode(MP4InputStream inStream)
{
originalFormat = inStream.readString(4);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
requirement = inStream.readString((int)getLeft(inStream));
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
readChildren(inStream);
}
public override void decode(MP4InputStream inStream)
{
base.decode(inStream);
year = (int)inStream.readBytes(2);
}
