Utils

arrayBinarySearch void* arrayBinarySearch(void* array, uint numElements, size_t elementSize, GCompareDataFunc searchFunc, GstSearchMode mode, void* searchData, void* userData): Searches inside array for search_data by using the comparison function search_func. array must be sorted ascending.
calculateLinearRegression bool calculateLinearRegression(GstClockTime* xy, GstClockTime* temp, uint n, GstClockTime mNum, GstClockTime mDenom, GstClockTime b, GstClockTime xbase, double rSquared): Calculates the linear regression of the values xy and places the result in m_num, m_denom, b and xbase, representing the function y(x) = m_num/m_denom * (x - xbase) + b that has the least-square distance from all points x and y.
doubleToFraction void doubleToFraction(double src, int destN, int destD): Transforms a gdouble to a fraction and simplifies the result.
dumpMem void dumpMem(char[] mem): Dumps the memory block into a hex representation. Useful for debugging.
dynamicTypeRegister bool dynamicTypeRegister(Plugin plugin, GType type)
fractionAdd bool fractionAdd(int aN, int aD, int bN, int bD, int resN, int resD): Adds the fractions a_n/a_d and b_n/b_d and stores the result in res_n and res_d.
fractionCompare int fractionCompare(int aN, int aD, int bN, int bD): Compares the fractions a_n/a_d and b_n/b_d and returns -1 if a < b, 0 if a = b and 1 if a > b.
fractionMultiply bool fractionMultiply(int aN, int aD, int bN, int bD, int resN, int resD): Multiplies the fractions a_n/a_d and b_n/b_d and stores the result in res_n and res_d.
fractionToDouble void fractionToDouble(int srcN, int srcD, double dest): Transforms a fraction to a gdouble
gdoubleToGuint64 ulong gdoubleToGuint64(double value)
getObjectArray bool getObjectArray(ObjectG object, string name, ValueArray array): Get a property of type GST_TYPE_ARRAY and transform it into a gstreamer.ValueArray This allow language bindings to get GST_TYPE_ARRAY properties which are otherwise not an accessible type.
getTimestamp GstClockTime getTimestamp(): Get a timestamp as GstClockTime to be used for interval measurements. The timestamp should not be interpreted in any other way.
greatestCommonDivisor int greatestCommonDivisor(int a, int b): Calculates the greatest common divisor of a and b.
greatestCommonDivisorInt64 long greatestCommonDivisorInt64(long a, long b): Calculates the greatest common divisor of a and b.
groupIdNext uint groupIdNext(): Return a constantly incrementing group id.
guint64ToGdouble double guint64ToGdouble(ulong value)
seqnumCompare int seqnumCompare(uint s1, uint s2): Compare two sequence numbers, handling wraparound.
seqnumNext uint seqnumNext(): Return a constantly incrementing sequence number.
setObjectArg void setObjectArg(ObjectG object, string name, string value): Converts the string value to the type of the objects argument and sets the argument with it.
setObjectArray bool setObjectArray(ObjectG object, string name, ValueArray array): Transfer a gstreamer.ValueArray to GST_TYPE_ARRAY and set this value on the specified property name. This allow language bindings to set GST_TYPE_ARRAY properties which are otherwise not an accessible type.
setValueFromString void setValueFromString(Value value, string valueStr): Converts the string to the type of the value and sets the value with it.
uint64Scale ulong uint64Scale(ulong val, ulong num, ulong denom): Scale val by the rational number num / denom, avoiding overflows and underflows and without loss of precision.
uint64ScaleCeil ulong uint64ScaleCeil(ulong val, ulong num, ulong denom): Scale val by the rational number num / denom, avoiding overflows and underflows and without loss of precision.
uint64ScaleInt ulong uint64ScaleInt(ulong val, int num, int denom): Scale val by the rational number num / denom, avoiding overflows and underflows and without loss of precision. num must be non-negative and denom must be positive.
uint64ScaleIntCeil ulong uint64ScaleIntCeil(ulong val, int num, int denom): Scale val by the rational number num / denom, avoiding overflows and underflows and without loss of precision. num must be non-negative and denom must be positive.
uint64ScaleIntRound ulong uint64ScaleIntRound(ulong val, int num, int denom): Scale val by the rational number num / denom, avoiding overflows and underflows and without loss of precision. num must be non-negative and denom must be positive.
uint64ScaleRound ulong uint64ScaleRound(ulong val, ulong num, ulong denom): Scale val by the rational number num / denom, avoiding overflows and underflows and without loss of precision.

gstreamer Utils structs

Utils