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How to use splice method of prog Package

Best Syzkaller code snippet using prog.splice

splicecommand.go

Source:splicecommand.go

...22	"bytes"23	"encoding/binary"24	"github.com/Comcast/gots/v2"25)26// timeSignal is a struct that represents a time signal splice command in SCTE3527type timeSignal struct {28	hasPTS bool29	pts    gots.PTS30}31// CommandType returns the signal's splice command type value.32func (c *timeSignal) CommandType() SpliceCommandType {33	return TimeSignal34}35// parseTimeSignal extracts a time_signal() command from a bytes buffer. It36// returns a timeSignal describing the command.37func parseTimeSignal(buf *bytes.Buffer) (cmd *timeSignal, err error) {38	cmd = &timeSignal{}39	hasPTS, pts, err := parseSpliceTime(buf)40	if !hasPTS {41		return nil, gots.ErrSCTE35UnsupportedSpliceCommand42	}43	cmd.hasPTS = hasPTS44	cmd.pts = pts45	return cmd, nil46}47// HasPTS returns true if there is a pts time on the command.48func (c *timeSignal) HasPTS() bool {49	return c.hasPTS50}51// PTS returns the PTS time of the command, not including adjustment.52func (c *timeSignal) PTS() gots.PTS {53	return c.pts54}55// spliceNull is a struct that represents a null splice command in SCTE3556type spliceNull struct {57}58// CommandType returns the signal's splice command type value.59func (c *spliceNull) CommandType() SpliceCommandType {60	return SpliceNull61}62// HasPTS returns true if there is a pts time on the command.63func (c *spliceNull) HasPTS() bool {64	return false65}66// PTS returns the PTS time of the command, not including adjustment.67func (c *spliceNull) PTS() gots.PTS {68	return 069}70// component is a structure in a spliceCommand.71type component struct {72	componentTag byte73	hasPts bool74	pts    gots.PTS75}76// CreateComponent will create a component that is used in SpliceInsertCommand.77func CreateComponent() Component {78	return &component{}79}80// ComponentTag returns the tag of the component.81func (c *component) ComponentTag() byte {82	return c.componentTag83}84// HasPTS returns true if there is a pts time on the command.85func (c *component) HasPTS() bool {86	return c.hasPts87}88// PTS returns the PTS time of the command, not including adjustment.89func (c *component) PTS() gots.PTS {90	return c.pts91}92// spliceInsert is a struct that represents a splice insert command in SCTE3593type spliceInsert struct {94	eventID               uint3295	eventCancelIndicator  bool96	outOfNetworkIndicator bool97	isProgramSplice bool98	spliceImmediate bool99	hasPTS bool100	pts    gots.PTS101	components []Component102	hasDuration     bool103	duration        gots.PTS104	autoReturn      bool105	uniqueProgramId uint16106	availNum        uint8107	availsExpected  uint8108}109// CommandType returns the signal's splice command type value.110func (c *spliceInsert) CommandType() SpliceCommandType {111	return SpliceInsert112}113// parseSpliceInsert extracts a splice_insert() command from a bytes buffer.114// It returns a spliceInsert describing the command.115func parseSpliceInsert(buf *bytes.Buffer) (*spliceInsert, error) {116	cmd := &spliceInsert{}117	if err := cmd.parse(buf); err != nil {118		return nil, err119	}120	return cmd, nil121}122// parse will parse bytes in the form of bytes.Buffer into a splice insert struct123func (c *spliceInsert) parse(buf *bytes.Buffer) error {124	baseFields := buf.Next(5)125	if len(baseFields) < 5 { // length of required fields126		return gots.ErrInvalidSCTE35Length127	}128	c.eventID = binary.BigEndian.Uint32(baseFields[:4])129	// splice_event_cancel_indicator 1130	// reserved 7131	c.eventCancelIndicator = baseFields[4]&0x80 == 0x80132	if c.eventCancelIndicator {133		return nil134	}135	// out_of_network_indicator 1136	// program_splice_flag 1137	// duration_flag 1138	// splice_immediate_flag 1139	// reserved 4140	flags, err := buf.ReadByte()141	if err != nil {142		return gots.ErrInvalidSCTE35Length143	}144	c.outOfNetworkIndicator = flags&0x80 == 0x80145	c.isProgramSplice = flags&0x40 == 0x40146	c.hasDuration = flags&0x20 == 0x20147	c.spliceImmediate = flags&0x10 == 0x10148	if c.isProgramSplice && !c.spliceImmediate {149		hasPTS, pts, err := parseSpliceTime(buf)150		if err != nil {151			return err152		}153		if !hasPTS {154			return gots.ErrSCTE35UnsupportedSpliceCommand155		}156		c.hasPTS = hasPTS157		c.pts = pts158	}159	if !c.isProgramSplice {160		cc, err := buf.ReadByte()161		if err != nil {162			return gots.ErrInvalidSCTE35Length163		}164		// read components165		for ; cc > 0; cc-- {166			// component_tag167			tag, err := buf.ReadByte()168			if err != nil {169				return gots.ErrInvalidSCTE35Length170			}171			comp := &component{componentTag: tag}172			if !c.spliceImmediate {173				hasPts, pts, err := parseSpliceTime(buf)174				if err != nil {175					return err176				}177				comp.hasPts = hasPts178				comp.pts = pts179			}180			c.components = append(c.components, comp)181		}182	}183	if c.hasDuration {184		data := buf.Next(5)185		if len(data) < 5 {186			return gots.ErrInvalidSCTE35Length187		}188		// break_duration() structure:189		c.autoReturn = data[0]&0x80 == 0x80190		c.duration = uint40(data) & 0x01ffffffff191	}192	progInfo := buf.Next(4)193	if len(progInfo) < 4 {194		return gots.ErrInvalidSCTE35Length195	}196	c.uniqueProgramId = binary.BigEndian.Uint16(progInfo[:2])197	c.availNum = progInfo[2]198	c.availsExpected = progInfo[3]199	return nil200}201// EventID returns the event id202func (c *spliceInsert) EventID() uint32 {203	return c.eventID204}205// IsOut returns the value of the out of network indicator206func (c *spliceInsert) IsOut() bool {207	return c.outOfNetworkIndicator208}209// IsEventCanceled returns the event cancel indicator210func (c *spliceInsert) IsEventCanceled() bool {211	return c.eventCancelIndicator212}213// HasPTS returns true if there is a pts time on the command.214func (c *spliceInsert) HasPTS() bool {215	return c.hasPTS216}217// PTS returns the PTS time of the command, not including adjustment.218func (c *spliceInsert) PTS() gots.PTS {219	return c.pts220}221// HasDuration returns true if there is a duration222func (c *spliceInsert) HasDuration() bool {223	return c.hasDuration224}225// Duration returns the PTS duration of the command226func (c *spliceInsert) Duration() gots.PTS {227	return c.duration228}229// Components returns the components of the splice command230func (c *spliceInsert) Components() []Component {231	return c.components232}233// IsAutoReturn returns the boolean value of the auto return field234func (c *spliceInsert) IsAutoReturn() bool {235	return c.autoReturn236}237// UniqueProgramId returns the unique_program_id field238func (c *spliceInsert) UniqueProgramId() uint16 {239	return c.uniqueProgramId240}241// AvailNum returns the avail_num field, index of this avail or zero if unused242func (c *spliceInsert) AvailNum() uint8 {243	return c.availNum244}245// AvailsExpected returns avails_expected field, number of avails for program246func (c *spliceInsert) AvailsExpected() uint8 {247	return c.availsExpected248}249// IsProgramSplice returns if the program_splice_flag is set250func (c *spliceInsert) IsProgramSplice() bool {251	return c.isProgramSplice252}253// SpliceImmediate returns if the splice_immediate_flag is set254func (c *spliceInsert) SpliceImmediate() bool {255	return c.spliceImmediate256}257// parseSpliceTime parses a splice_time() structure and returns the values of258// time_specified_flag and pts_time.259// If the time_specified_flag is 0, pts will have a value of gots.PTS(0).260func parseSpliceTime(buf *bytes.Buffer) (timeSpecified bool, pts gots.PTS, err error) {261	flags, err := buf.ReadByte()262	if err != nil {263		err = gots.ErrInvalidSCTE35Length264		return false, gots.PTS(0), err265	}266	timeSpecified = flags&0x80 == 0x80267	if !timeSpecified {268		// Time isn't specified, assume PTS of 0.269		return false, gots.PTS(0), nil270	}271	// unread prev byte because it contains the top bit of the pts offset...

mab_proc.go

Source:mab_proc.go

...138	mutateCount := 1139	removeCount := 1140	mutateArgCount := 1141	insertCallCount := 1142	spliceCount := 1143	squashAnyCount := 1144	if len(fuzzerSnapshot.corpus) == 0 { // Check whether mutation is an option145		mutateCount = 0146		removeCount = 0147		mutateArgCount = 0148		insertCallCount = 0149		spliceCount = 0150		squashAnyCount = 0151	}152	proc.fuzzer.workQueue.mu.Lock() // Check whether triage is an option153	triageQueueLen := len(proc.fuzzer.workQueue.triage)154	triageQueueLenCandidate := len(proc.fuzzer.workQueue.triageCandidate)155	proc.fuzzer.workQueue.mu.Unlock()156	if triageQueueLen+triageQueueLenCandidate == 0 {157		triageCount = 0158	}159	W := weight[0] + float64(mutateCount)*weight[1] + float64(triageCount)*weight[2] + float64(removeCount) *weight[3] + float64(mutateArgCount) * weight[4] + float64(insertCallCount) * weight[5] + float64(spliceCount) * weight[6] + float64(squashAnyCount) * weight[7]160	if W == 0.0 {161		log.Fatalf("Error total weight W = 0")162	}163	prGenerate := weight[0] / W164	prMutate := weight[1] / W165	prTriage := weight[2] / W166	prRemove := weight[3] / W167	prMutateArg := weight[4] / W168        prInsert := weight[5] / W169	prSplice := weight[6] / W170	prSquash := weight[7] / W 171	prMutateActual := float64(mutateCount) * prMutate172	prTriageActual := float64(triageCount) * prTriage173	prRemoveActual := float64(removeCount) * prRemove174	prMutateArgActual := float64(mutateArgCount) * prMutateArg175	prInsertActual := float64(insertCallCount) * prInsert176	prSpliceActual := float64(spliceCount) * prSplice177	prSquashActual := float64(squashAnyCount) * prSquash178	// Use real weight as pr. Consider cases where triage/mutation might be unavailable179	prTasks := []float64{prGenerate, prMutateActual, prTriageActual, prRemoveActual, prMutateArgActual, prInsertActual, prSliceActual, prSquashActual }180	log.Logf(0, "MAB Probability: [%v, %v, %v, %v, %v, %v, %v, %v]\n", prTasks[0], prTasks[1], prTasks[2], prTasks[3], prTasks[4], prTasks[5], prTasks[6], prTasks[7])181	// Choose182	randNum := rand.Float64() * (prGenerate + prMutateActual + prTriageActual + prRemoveActual + prMutateArgActual + prInsertActual + prSliceActual + prSquashActual)183	choice := -1184	if randNum <= prGenerate {185		choice = 0186	} else if randNum <= prGenerate+prMutateActual {187		choice = 1188	} else if randNum <= prGenerate + prMutateActual + prTriageActual {189		choice = 2190	} else if randNum <= prGenerate + prMutateActual + prTriageActual + prRemoveActual {...

parser.go

Source:parser.go

...98}99func verify(psiInfo mpts.Info) {100	result := map[string]interface{}{}101	for _, prog := range psiInfo.Programs {102		result["splice-frame-accuracy"] = verifySpliceFrameAccuracy(prog)103	}104	logJson("verified", result)105}106func verifySpliceFrameAccuracy(prog mpts.Program) map[string]interface{} {107	sctePids, videoPid := []string{}, ""108	for pid, strm := range prog.Streams {109		switch strm.StreamType {110		case "SCTE-35":111			sctePids = append(sctePids, pid)112		case "MPEG-2 Video", "MPEG-4 Video", "MPEG-4 AVC Video":113			videoPid = pid114		}115	}116	result := map[string]interface{}{}117	for _, sctePid := range sctePids {118		pair := sctePid + ":" + videoPid119		result[pair] = verifySpliceWithKeyframe(sctePid, videoPid)120	}121	return result122}123func verifySpliceWithKeyframe(sctePid, videoPid string) map[string]bool {124	splice := map[string]bool{}125	iframe := map[string]bool{}126	parseCsv(sctePid, func(fields []string) {127		if len(fields) > 3 {128			pts, _ := strconv.ParseInt(fields[3], 10, 64)129			adj, _ := strconv.ParseInt(fields[4], 10, 64)130			key := strconv.FormatInt(pts+adj, 10)131			splice[key] = false132		}133	})134	parseCsv(videoPid+"-iframe", func(fields []string) {135		if len(fields) > 1 {136			iframe[fields[1]] = false137		}138	})139	for pts, _ := range splice {140		if _, ok := iframe[pts]; ok {141			splice[pts] = true142		}143	}144	return splice145}146func parseCsv(filename string, handle func([]string)) {147	content, err := ioutil.ReadFile(filepath.Join(Root, filename+".csv"))148	check(err)149	lines := strings.Split(string(content), "\n")150	lines = lines[1:]151	for _, line := range lines {152		fields := strings.Split(line, ", ")153		handle(fields)154	}155}156func logJson(filename string, v interface{}) {157	w, err := os.Create(filepath.Join(Root, filename+".json"))158	check(err)...

splice

Using AI Code Generation

1import (2func main() {3    file, err := os.Open("test.txt")4    if err != nil {5        fmt.Println(err)6    }7    defer file.Close()8    stat, err := file.Stat()9    if err != nil {10        fmt.Println(err)11    }12    bs := make([]byte, stat.Size())13    _, err = file.Read(bs)14    if err != nil {15        fmt.Println(err)16    }17    str := string(bs)18    fmt.Println(str)19}20import (21func main() {22    bs, err := ioutil.ReadFile("test.txt")23    if err != nil {24    }25    str := string(bs)26    fmt.Println(str)27}28import (29func main() {30    file, err := os.Open("test.txt")31    if err != nil {32        fmt.Println(err)33    }34    defer file.Close()35    stat, err := file.Stat()36    if err != nil {37        fmt.Println(err)38    }39    bs = make([]byte, stat.Size())40    _, err = file.Read(bs)41    if err != nil {42        fmt.Println(err)43    }44    str := string(bs)45    fmt.Println(str)46}47import (48func main() {49    bs, err := ioutil.ReadFile("test.txt")50    if err != nil {51    }52    str := string(bs)53    fmt.Println(str)54}55import (56func main() {57    file, err := os.Open("test.txt")58    if err != nil {59        fmt.Println(err)60    }61    defer file.Close()62    stat, err := file.Stat()63    if err != nil {64        fmt.Println(err)65    }

splice

Using AI Code Generation

1import "fmt"2func main() {3    fmt.Println("Enter the string s1")4    fmt.Scanln(&s1)5    fmt.Println("Enter the string s2")6    fmt.Scanln(&s2)7    fmt.Println("Enter the string s3")8    fmt.Scanln(&s3)9    prog.splice(s1, s2, s3)10}11import "fmt"12func main() {13    fmt.Println("Enter the string s1")14    fmt.Scanln(&s1)15    fmt.Println("Enter the string s2")16    fmt.Scanln(&s2)17    fmt.Println("Enter the string s3")18    fmt.Scanln(&s3)19    prog.splice(s1, s2, s3)20}21import "fmt"22func main() {23    fmt.Println("Enter the string s1")24    fmt.Scanln(&s1)25    fmt.Println("Enter the string s2")26    fmt.Scanln(&s2)27    fmt.Println("Enter the string s3")28    fmt.Scanln(&s3)29    prog.splice(s1, s2, s3)30}31import "fmt"32func main() {33    fmt.Println("Enter the string s1")34    fmt.Scanln(&s1)35    fmt.Println("Enter the string s2")36    fmt.Scanln(&s2)37    fmt.Println("Enter the string s3")38    fmt.Scanln(&s3)39    prog.splice(s1, s2, s3)40}41import "fmt"42func main() {43    fmt.Println("Enter the string s1")44    fmt.Scanln(&s1)45    fmt.Println("Enter the string s2

splice

Using AI Code Generation

1{2    public static void main(String[] args) {3        Prog p = new Prog();4        p.splice("Hello World");5    }6}7import "fmt"8type Prog struct {9}10func (p Prog) splice(s string) {11    fmt.Println(s)12}13func main() {14    p := Prog{"Go"}15    p.splice("Hello World")16}

splice

Using AI Code Generation

1import (2func main() {3	s1 = []int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10}4	s2 = []int{11, 12, 13, 14, 15, 16, 17, 18, 19, 20}5	fmt.Println("s1 before splice: ", s1)6	fmt.Println("s2 before splice: ", s2)7	prog.Splice(s1, s2, 2, 5, 3)8	fmt.Println("s1 after splice: ", s1)9	fmt.Println("s2 after splice: ", s2)10}11func Splice(s1 []int, s2 []int, start int, count int, insert int)

splice

Using AI Code Generation

1import "fmt"2func main() {3    p := new(prog)4    p.splice(1, 2, 3, 4, 5, 6, 7, 8, 9)5}6import "fmt"7type prog struct {8}9func (p prog) splice(a ...int) {10    for i := 0; i < len(a); i++ {11        fmt.Println(a[i])12    }13}14import "fmt"15func main() {16    100.splice(1, 2, 3, 4, 5, 6, 7, 8, 9)17}18import "fmt"19type prog struct {20}21func (p prog) splice(a ...int) {22    for i := 0; i < len(a); i++ {23        fmt.Println(a[i])24    }25}26func (i int) splice(a ...int) {27    for i := 0; i < len(a); i++ {28        fmt.Println(a[i])29    }30}31In the above code, the method splice() is defined for the type int. This

splice

Using AI Code Generation

1import (2func main() {3	m := ir.NewModule()4	foo := m.NewFunc("foo", types.Void)5	entry := foo.NewBlock("entry")6	c := constant.NewInt(types.I32, 42)7	x := entry.NewAlloca(types.I32)8	entry.NewStore(c, x)9	y := entry.NewLoad(types.I32, x)10	entry.NewRetVoid()11	main := m.NewFunc("main", types.Void)12	entry = main.NewBlock("entry")13	entry.NewCall(foo, nil)14	entry.NewRetVoid()15	bar := m.NewFunc("bar", types.Void)16	entry = bar.NewBlock("entry")17	entry.NewCall(foo, nil)18	entry.NewRetVoid()19	irutil.SpliceFunc(m,

splice

Using AI Code Generation

1import (2func main() {3	f, err := os.Open("file1.txt")4	if err != nil {5		fmt.Println(err)6	}7	f2, err := os.Create("file2.txt")8	if err != nil {9		fmt.Println(err)10		f.Close()11	}12	_, err = io.Copy(f2, f)13	if err != nil {14		fmt.Println(err)15		f.Close()16		f2.Close()17	}18	err = f2.Sync()19	if err != nil {20		fmt.Println(err)21		f.Close()22		f2.Close()23	}24	err = f.Close()

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