gst

package module
v0.1.0 Latest Latest
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 Go to latest Published: Jan 28, 2021 License: Apache-2.0 Imports: 8 Imported by: 0

README

gst

a small go gstreamer binding

Examples

https://github.com/notedit/gst-go-demo

Documentation

Index

Constants

View Source 
const (
	StateVoidPending = State(C.GST_STATE_VOID_PENDING)
	StateNull        = State(C.GST_STATE_NULL)
	StateReady       = State(C.GST_STATE_READY)
	StatePaused      = State(C.GST_STATE_PAUSED)
	StatePlaying     = State(C.GST_STATE_PLAYING)
)
View Source 
const (
	STATE_CHANGE_FAILURE    = StateChangeReturn(C.GST_STATE_CHANGE_FAILURE)
	STATE_CHANGE_SUCCESS    = StateChangeReturn(C.GST_STATE_CHANGE_SUCCESS)
	STATE_CHANGE_ASYNC      = StateChangeReturn(C.GST_STATE_CHANGE_ASYNC)
	STATE_CHANGE_NO_PREROLL = StateChangeReturn(C.GST_STATE_CHANGE_NO_PREROLL)
)
View Source 
const (
	PAD_UNKNOWN = PadDirection(C.GST_PAD_UNKNOWN)
	PAD_SRC     = PadDirection(C.GST_PAD_SRC)
	PAD_SINK    = PadDirection(C.GST_PAD_SINK)
)
View Source 
const (
	PadLinkOk             PadLinkReturn = C.GST_PAD_LINK_OK
	PadLinkWrongHierarchy               = C.GST_PAD_LINK_WRONG_HIERARCHY
	PadLinkWasLinked                    = C.GST_PAD_LINK_WAS_LINKED
	PadLinkWrongDirection               = C.GST_PAD_LINK_WRONG_DIRECTION
	PadLinkNoFormat                     = C.GST_PAD_LINK_NOFORMAT
	PadLinkNoSched                      = C.GST_PAD_LINK_NOSCHED
	PadLinkRefused                      = C.GST_PAD_LINK_REFUSED
)

Variables

This section is empty.

Functions

func BufferGetData 

func BufferGetData(gstBuffer *Buffer) (data []byte, err error)

func CheckPlugins 

func CheckPlugins(plugins []string) error

Types

type Bin 

type Bin struct {
	Element
}

func BinNew 

func BinNew(name string) (bin *Bin)

func ParseBinFromDescription 

func ParseBinFromDescription(binStr string, ghostPads bool) (bin *Bin, err error)

func (*Bin) Add 

func (b *Bin) Add(child *Element)

func (*Bin) AddBin added in v0.0.9 

func (b *Bin) AddBin(child *Bin)

func (*Bin) AddMany 

func (b *Bin) AddMany(elements ...*Element)

func (*Bin) GetByName 

func (b *Bin) GetByName(name string) (element *Element)

func (*Bin) Remove 

func (b *Bin) Remove(child *Element)

func (*Bin) RemoveBin added in v0.0.9 

func (b *Bin) RemoveBin(child *Bin)

func (*Bin) RemoveMany added in v0.0.7 

func (b *Bin) RemoveMany(childs ...*Element)

type Buffer 

type Buffer struct {
	C *C.GstBuffer
}

func BufferNewAndAlloc 

func BufferNewAndAlloc(size uint) (gstBuffer *Buffer, err error)

func BufferNewWrapped 

func BufferNewWrapped(data []byte) (gstBuffer *Buffer, err error)

type Bus 

type Bus struct {
	C *C.GstBus
}

func (*Bus) HavePending 

func (b *Bus) HavePending() bool

func (*Bus) Pop 

func (b *Bus) Pop() (message *Message)

func (*Bus) PopFiltered added in v0.0.8 

func (b *Bus) PopFiltered(messageType MessageType) (message *Message)

func (*Bus) Pull 

func (b *Bus) Pull(messageType MessageType) (message *Message)

type Caps 

type Caps struct {
	// contains filtered or unexported fields
}

func CapsFromString 

func CapsFromString(caps string) (gstCaps *Caps)

func (*Caps) String 

func (c *Caps) String() (str string)

func (*Caps) ToString 

func (c *Caps) ToString() (str string)

type Clock 

type Clock struct {
	C *C.GstClock
}

func (*Clock) GetClockTime 

func (c *Clock) GetClockTime() uint64

type Element 

type Element struct {
	GstElement *C.GstElement
	// contains filtered or unexported fields
}

func ElementFactoryMake 

func ElementFactoryMake(factoryName string, name string) (e *Element, err error)

func (*Element) AddPad 

func (e *Element) AddPad(pad *Pad) bool

func (*Element) GetClock 

func (e *Element) GetClock() (gstClock *Clock)

func (*Element) GetClockBaseTime 

func (e *Element) GetClockBaseTime() uint64

func (*Element) GetPadTemplate 

func (e *Element) GetPadTemplate(name string) (padTemplate *PadTemplate)

func (*Element) GetRequestPad 

func (e *Element) GetRequestPad(padTemplate *PadTemplate, name string, caps *Caps) (pad *Pad)

func (*Element) GetRequestPad2 added in v0.0.9 

func (e *Element) GetRequestPad2(name string) (pad *Pad)

func (*Element) GetState added in v0.0.7 

func (e *Element) GetState(timeout_ns int64) (state, pending State,
	ret StateChangeReturn)

func (*Element) GetStaticPad 

func (e *Element) GetStaticPad(name string) (pad *Pad)

func (*Element) IsEOS 

func (e *Element) IsEOS() bool

appsink 

func (e *Element) Link(dst *Element) bool

func (*Element) LinkFileterd added in v0.0.7 

func (e *Element) LinkFileterd(dst *Element, gstCaps *Caps) bool

func (*Element) Name 

func (e *Element) Name() (name string)

func (*Element) PullSample 

func (e *Element) PullSample() (sample *Sample, err error)

func (*Element) PushBuffer 

func (e *Element) PushBuffer(data []byte) (err error)

func (*Element) RemovePad added in v0.0.6 

func (e *Element) RemovePad(pad *Pad) bool

func (*Element) SetObject 

func (e *Element) SetObject(name string, value interface{})

func (*Element) SetPadAddedCallback 

func (e *Element) SetPadAddedCallback(callback PadAddedCallback)

func (*Element) SetRtpBinFecDecSignal added in v0.1.0 

func (e *Element) SetRtpBinFecDecSignal(pt int)

func (*Element) SetRtpBinNewRtpJitterSignal added in v0.1.0 

func (e *Element) SetRtpBinNewRtpJitterSignal(params string)

func (*Element) SetRtpBinNewStorageSignal added in v0.1.0 

func (e *Element) SetRtpBinNewStorageSignal(latency int)

func (*Element) SetRtpBinRequestptmapSignal added in v0.1.0 

func (e *Element) SetRtpBinRequestptmapSignal()

func (*Element) SetState added in v0.0.6 

func (e *Element) SetState(state State) StateChangeReturn
func (e *Element) UnLink(dst *Element)

type GMainLoop 

type GMainLoop struct {
	C *C.GMainLoop
}

func MainLoopNew 

func MainLoopNew() (loop *GMainLoop)

func (*GMainLoop) IsRuning 

func (l *GMainLoop) IsRuning() bool

func (*GMainLoop) Quit 

func (l *GMainLoop) Quit()

func (*GMainLoop) Run 

func (l *GMainLoop) Run()

type Message 

type Message struct {
	C *C.GstMessage
}

func (*Message) GetName 

func (message *Message) GetName() (name string)

func (*Message) GetStructure 

func (message *Message) GetStructure() (structure *Structure)

func (*Message) GetType 

func (message *Message) GetType() (messageType MessageType)

type MessageType 

type MessageType C.GstMessageType
const (
	MessageUnknown         MessageType = C.GST_MESSAGE_UNKNOWN
	MessageEos             MessageType = C.GST_MESSAGE_EOS
	MessageError           MessageType = C.GST_MESSAGE_ERROR
	MessageWarning         MessageType = C.GST_MESSAGE_WARNING
	MessageInfo            MessageType = C.GST_MESSAGE_INFO
	MessageTag             MessageType = C.GST_MESSAGE_TAG
	MessageBuffering       MessageType = C.GST_MESSAGE_BUFFERING
	MessageStateChanged    MessageType = C.GST_MESSAGE_STATE_CHANGED
	MessageStateDirty      MessageType = C.GST_MESSAGE_STATE_DIRTY
	MessageStepDone        MessageType = C.GST_MESSAGE_STEP_DONE
	MessageClockProvide    MessageType = C.GST_MESSAGE_CLOCK_PROVIDE
	MessageClockLost       MessageType = C.GST_MESSAGE_CLOCK_LOST
	MessageStructureChange MessageType = C.GST_MESSAGE_STREAM_STATUS
	MessageApplication     MessageType = C.GST_MESSAGE_APPLICATION
	MessageElement         MessageType = C.GST_MESSAGE_ELEMENT
	MessageSegmentStart    MessageType = C.GST_MESSAGE_SEGMENT_START
	MessageSegmentDone     MessageType = C.GST_MESSAGE_SEGMENT_DONE
	MessageDurationChanged MessageType = C.GST_MESSAGE_DURATION_CHANGED
	MessageLatency         MessageType = C.GST_MESSAGE_LATENCY
	MessageAsyncStart      MessageType = C.GST_MESSAGE_ASYNC_START
	MessageAsyncDone       MessageType = C.GST_MESSAGE_ASYNC_DONE
	MessageRequestState    MessageType = C.GST_MESSAGE_REQUEST_STATE
	MessageStepStart       MessageType = C.GST_MESSAGE_STEP_START
	MessageQos             MessageType = C.GST_MESSAGE_QOS
	MessageProgress        MessageType = C.GST_MESSAGE_PROGRESS
	MessageToc             MessageType = C.GST_MESSAGE_TOC
	MessageResetTime       MessageType = C.GST_MESSAGE_RESET_TIME
	MessageStreamStart     MessageType = C.GST_MESSAGE_STREAM_START
	MessageNeedContext     MessageType = C.GST_MESSAGE_NEED_CONTEXT
	MessageHaveContext     MessageType = C.GST_MESSAGE_HAVE_CONTEXT
	MessageExtended        MessageType = C.GST_MESSAGE_EXTENDED
	MessageDeviceAdded     MessageType = C.GST_MESSAGE_DEVICE_ADDED
	MessageDeviceRemoved   MessageType = C.GST_MESSAGE_DEVICE_REMOVED
	//MessagePropertyNotify   MessageType = C.GST_MESSAGE_PROPERTY_NOTIFY
	//MessageStreamCollection MessageType = C.GST_MESSAGE_STREAM_COLLECTION
	//MessageStreamsSelected  MessageType = C.GST_MESSAGE_STREAMS_SELECTED
	//MessageRedirect         MessageType = C.GST_MESSAGE_REDIRECT
	MessageAny MessageType = C.GST_MESSAGE_ANY
)

type Pad 

type Pad struct {
	// contains filtered or unexported fields
}

func (*Pad) GetCurrentCaps 

func (p *Pad) GetCurrentCaps() (gstCaps *Caps)

func (*Pad) IsEOS 

func (p *Pad) IsEOS() bool

func (*Pad) IsLinked 

func (p *Pad) IsLinked() bool
func (p *Pad) Link(sink *Pad) (padLinkReturn PadLinkReturn)

func (*Pad) Name 

func (p *Pad) Name() string

func (*Pad) SetObject added in v0.0.6 

func (p *Pad) SetObject(name string, value interface{})
func (p *Pad) Unlink(sink *Pad) (padLinkReturn PadLinkReturn)

type PadAddedCallback 

type PadAddedCallback func(element *Element, pad *Pad)

type PadDirection 

type PadDirection C.GstPadDirection

func (PadDirection) String 

func (p PadDirection) String() string

type PadLinkReturn 

type PadLinkReturn int

type PadTemplate 

type PadTemplate struct {
	C *C.GstPadTemplate
}

type Pipeline 

type Pipeline struct {
	Bin
}

func ParseLaunch 

func ParseLaunch(pipelineStr string) (p *Pipeline, err error)

func PipelineNew 

func PipelineNew(name string) (e *Pipeline, err error)

func (*Pipeline) GetBus 

func (p *Pipeline) GetBus() (bus *Bus)

func (*Pipeline) GetClock 

func (p *Pipeline) GetClock() (clock *Clock)

func (*Pipeline) GetDelay 

func (p *Pipeline) GetDelay() uint64

func (*Pipeline) GetLatency 

func (p *Pipeline) GetLatency() uint64

func (*Pipeline) GetState added in v0.0.7 

func (p *Pipeline) GetState(timeout_ns int64) (state, pending State, ret StateChangeReturn)

func (*Pipeline) SeekSimple added in v0.1.0 

func (p *Pipeline) SeekSimple(millisec int64) bool

func (*Pipeline) SetLatency 

func (p *Pipeline) SetLatency(latency uint64)

func (*Pipeline) SetState 

func (p *Pipeline) SetState(state State) StateChangeReturn

type Sample 

type Sample struct {
	Data     []byte
	Duration uint64
}

type State added in v0.0.7 

type State C.GstState

func (State) String added in v0.0.7 

func (s State) String() string

type StateChangeReturn added in v0.0.7 

type StateChangeReturn C.GstStateChangeReturn

type Structure 

type Structure struct {
	C *C.GstStructure
}

func NewStructure 

func NewStructure(name string) (structure *Structure)

func StructureFromString added in v0.0.9 

func StructureFromString(structure string) (gstStruct *Structure)

func (*Structure) GetDoubleArrayValue added in v0.1.0 

func (s *Structure) GetDoubleArrayValue(key string) (res []float64, err error)

func (*Structure) GetStructureName added in v0.1.0 

func (s *Structure) GetStructureName() (str string)

func (*Structure) SetValue 

func (s *Structure) SetValue(name string, value interface{})

func (*Structure) ToString 

func (s *Structure) ToString() (str string)

Source Files

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