util

package

v0.0.0-...-d98fde6 Latest Latest Go to latest Published: Aug 8, 2017 License: Apache-2.0 Imports: 13 Imported by: 0

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Repository

github.com/javouhey/seneca

Links

Open Source Insights

Documentation ¶

Overview ¶

Argument parsing and utility functions

Index ¶

Variables
func DecodeSpeed(arg string) (string, error)
func IsEmpty(arg string) bool
func IsExistProgram(execName string) (bool, error)
func ParseStartTime(ss string, total time.Duration) (time.Duration, error)
func SanitizeFile(path string) (string, error)
func ToPort(port int) string
func ValidatePort(port int) error
type Arguments
- func NewArguments() *Arguments
- func (a *Arguments) Parse(arguments []string) error
- func (a *Arguments) Validate() error
type Instant
- func (i *Instant) Set(value string) error
- func (i *Instant) String() string
type ScaleType
- func (s ScaleType) Decode(args ...uint16) (string, error)
type TimeCode
- func ParseFrom(arg string) (*TimeCode, error)
- func (tc TimeCode) String() string

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	MissingProgramError = errors.New("program name is invalid")
	InvalidPath         = errors.New("bad path supplied")
)

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var ErrNoArgs = errors.New("At least 1 arg must be provided")

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var ErrScaleOutOfRange = errors.New("ScaleType not recognized")

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var ErrTwoArgs = errors.New("2 args must be provided")

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var HelpMessage = `` /* 2782-byte string literal not displayed */

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var ShortHelp = `See 'seneca -h' for help`

Functions ¶

func DecodeSpeed ¶

func DecodeSpeed(arg string) (string, error)

Converts speed specification to ffmpeg option

 speedup: -vf "setpts=(1/X)*PTS"
slowdown: -vf "setpts=(X/1)*PTS"

func IsEmpty ¶

func IsEmpty(arg string) bool

func IsExistProgram ¶

func IsExistProgram(execName string) (bool, error)

func ParseStartTime ¶

func ParseStartTime(ss string, total time.Duration) (time.Duration, error)

total - total time of the video ss - string representation of an instant to start the capture

func SanitizeFile ¶

func SanitizeFile(path string) (string, error)

func ToPort ¶

func ToPort(port int) string

func ValidatePort ¶

func ValidatePort(port int) error

Types ¶

type Arguments ¶

type Arguments struct {
	Help    bool
	Version bool
	DryRun  bool
	Verbose bool
	VideoIn string
	Port    int

	NeedScaling bool
	ScaleFilter string
	Fps         int
	SpeedSpec   string

	From   TimeCode
	Length time.Duration
}

func NewArguments ¶

func NewArguments() *Arguments

func (*Arguments) Parse ¶

func (a *Arguments) Parse(arguments []string) error

func (*Arguments) Validate ¶

func (a *Arguments) Validate() error

type Instant ¶

type Instant []time.Duration

@deprecated

func (*Instant) Set ¶

func (i *Instant) Set(value string) error

@deprecated

func (*Instant) String ¶

func (i *Instant) String() string

@deprecated

type ScaleType ¶

type ScaleType uint16

const (
	// -scale width:_
	//   height scaled to keep aspect ratio
	WidthOnly ScaleType = 1 << iota

	// -scale _:height
	//   Width scaled to keep aspect ratio
	HeightOnly

	// -scale width:height
	WidthHeight
)

func (ScaleType) Decode ¶

func (s ScaleType) Decode(args ...uint16) (string, error)

A priori - arguments have been checked to not exceed the

respective dimensions of the input video

type TimeCode ¶

type TimeCode time.Time

func ParseFrom ¶

func ParseFrom(arg string) (*TimeCode, error)

func (TimeCode) String ¶

func (tc TimeCode) String() string

Source Files ¶

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