core

package
v0.7.4 Latest Latest
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 Go to latest Published: Apr 2, 2024 License: MIT Imports: 39 Imported by: 4

Documentation

Overview

Core contains the main functionality of the Livepeer node.

The logical orgnization of the `core` module is as follows:

livepeernode.go: Main struct definition and code that is common to all node types. broadcaster.go: Code that is called only when the node is in broadcaster mode. orchestrator.go: Code that is called only when the node is in orchestrator mode.

Object store helper functions

Index

Constants

View Source 
const (
	JsonPlaylistInitialTimeout = 5 * time.Second
	JsonPlaylistMaxTimeout     = 120 * time.Second
)
View Source 
const (
	DefaultManifestIDLength = 4
)
View Source 
const LIVE_LIST_LENGTH uint = 6

Variables

View Source 
var CapabilityNameLookup = map[Capability]string{
	Capability_Invalid:                    "Invalid",
	Capability_Unused:                     "Unused",
	Capability_H264:                       "H.264",
	Capability_MPEGTS:                     "MPEGTS",
	Capability_MP4:                        "MP4",
	Capability_FractionalFramerates:       "Fractional framerates",
	Capability_StorageDirect:              "Storage direct",
	Capability_StorageS3:                  "Storage S3",
	Capability_StorageGCS:                 "Storage GCS",
	Capability_ProfileH264Baseline:        "H264 Baseline profile",
	Capability_ProfileH264Main:            "H264 Main profile",
	Capability_ProfileH264High:            "H264 High profile",
	Capability_ProfileH264ConstrainedHigh: "H264 Constained High profile",
	Capability_GOP:                        "GOP",
	Capability_AuthToken:                  "Auth token",
	Capability_MPEG7VideoSignature:        "MPEG7 signature",
	Capability_HEVC_Decode:                "HEVC decode",
	Capability_HEVC_Encode:                "HEVC encode",
	Capability_VP8_Decode:                 "VP8 decode",
	Capability_VP9_Decode:                 "VP9 decode",
	Capability_VP8_Encode:                 "VP8 encode",
	Capability_VP9_Encode:                 "VP9 encode",
	Capability_H264_Decode_444_8bit:       "H264 Decode YUV444 8-bit",
	Capability_H264_Decode_422_8bit:       "H264 Decode YUV422 8-bit",
	Capability_H264_Decode_444_10bit:      "H264 Decode YUV444 10-bit",
	Capability_H264_Decode_422_10bit:      "H264 Decode YUV422 10-bit",
	Capability_H264_Decode_420_10bit:      "H264 Decode YUV420 10-bit",
	Capability_SegmentSlicing:             "Segment slicing",
}
View Source 
var CapabilityTestLookup = map[Capability]CapabilityTest{

	Capability_H264: {
		// contains filtered or unexported fields
	},
	Capability_HEVC_Decode: {
		// contains filtered or unexported fields
	},
	Capability_HEVC_Encode: {
		// contains filtered or unexported fields
	},
	Capability_VP8_Decode: {
		// contains filtered or unexported fields
	},
	Capability_VP9_Decode: {
		// contains filtered or unexported fields
	},
	Capability_H264_Decode_444_8bit: {
		// contains filtered or unexported fields
	},
	Capability_H264_Decode_422_8bit: {
		// contains filtered or unexported fields
	},
	Capability_H264_Decode_444_10bit: {
		// contains filtered or unexported fields
	},
	Capability_H264_Decode_422_10bit: {
		// contains filtered or unexported fields
	},
	Capability_H264_Decode_420_10bit: {
		// contains filtered or unexported fields
	},
}
View Source 
var ErrManifestID = errors.New("ErrManifestID")
View Source 
var ErrNoCompatibleTranscodersAvailable = errors.New("no transcoders can provide requested capabilities")
View Source 
var ErrNoTranscodersAvailable = errors.New("no transcoders available")
View Source 
var ErrOrchBusy = errors.New("OrchestratorBusy")
View Source 
var ErrOrchCap = errors.New("OrchestratorCapped")
View Source 
var ErrRemoteTranscoderTimeout = errors.New("Remote transcoder took too long")
View Source 
var ErrTranscode = errors.New("ErrTranscode")
View Source 
var ErrTranscoderAvail = errors.New("ErrTranscoderUnavailable")
View Source 
var ErrTranscoderBusy = errors.New("TranscoderBusy")
View Source 
var ErrTranscoderStopped = errors.New("TranscoderStopped")
View Source 
var JsonPlaylistQuitTimeout = 60 * time.Second
View Source 
var LivepeerVersion = "undefined"

LivepeerVersion node version content of this constant will be set at build time, using -ldflags, combining content of `VERSION` file and output of the `git describe` command.

View Source 
var MaxSessions = 10
View Source 
var PriceFeedWatcher watchers.PriceFeedWatcher

PriceFeedWatcher is a global instance of a PriceFeedWatcher. It must be initialized before creating an AutoConvertedPrice instance.

View Source 
var WorkDir string

Functions

func CapabilityToName added in v0.5.29 

func CapabilityToName(capability Capability) (string, error)

func FromNetOsInfo added in v0.5.34 

func FromNetOsInfo(os *net.OSInfo) *drivers.OSInfo

func FromNetS3Info added in v0.5.34 

func FromNetS3Info(storage *net.S3OSInfo) *drivers.S3OSInfo

func GetSegmentData added in v0.5.34 

func GetSegmentData(ctx context.Context, uri string) ([]byte, error)

func GetTranscoderFactoryByAccel added in v0.5.30 

func GetTranscoderFactoryByAccel(acceleration ffmpeg.Acceleration) (func(device string) TranscoderSession, error)

func InArray added in v0.5.29 

func InArray(capability Capability, caps []Capability) bool

func NetSegData added in v0.5.9 

func NetSegData(md *SegTranscodingMetadata) (*net.SegData, error)

func NewBroadcaster added in v0.3.3 

func NewBroadcaster(node *LivepeerNode) *broadcaster

func NewOrchestrator added in v0.3.3 

func NewOrchestrator(n *LivepeerNode, rm common.RoundsManager) *orchestrator

func NewRemoteTranscoderFatalError added in v0.5.0 

func NewRemoteTranscoderFatalError(err error) error

NewRemoteTranscoderFatalError creates new RemoteTranscoderFatalError Exported here to be used in other packages

func ToNetOSInfo added in v0.5.34 

func ToNetOSInfo(os *drivers.OSInfo) *net.OSInfo

func ToNetS3Info added in v0.5.34 

func ToNetS3Info(storage *drivers.S3OSInfo) *net.S3OSInfo

Types

type AddressBalances added in v0.5.0 

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

AddressBalances holds credit balances for ETH addresses

func NewAddressBalances added in v0.5.0 

func NewAddressBalances(ttl time.Duration) *AddressBalances

NewAddressBalances creates a new AddressBalances instance

func (*AddressBalances) Balance added in v0.5.0 

func (a *AddressBalances) Balance(addr ethcommon.Address, id ManifestID) *big.Rat

Balance retrieves the current balance for an address' ManifestID

func (*AddressBalances) Credit added in v0.5.0 

func (a *AddressBalances) Credit(addr ethcommon.Address, id ManifestID, amount *big.Rat)

Credit adds an an amount to the balance for an address' ManifestID

func (*AddressBalances) Debit added in v0.5.0 

func (a *AddressBalances) Debit(addr ethcommon.Address, id ManifestID, amount *big.Rat)

Debit subtracts an amount from the balance for an address' ManifestID

func (*AddressBalances) Reserve added in v0.5.0 

func (a *AddressBalances) Reserve(addr ethcommon.Address, id ManifestID) *big.Rat

Reserve zeros the balance for an address' ManifestID and returns the current balance

func (*AddressBalances) StopCleanup added in v0.5.0 

func (a *AddressBalances) StopCleanup()

StopCleanup stops the cleanup loop for all balances

type AutoConvertedPrice added in v0.7.3 

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

AutoConvertedPrice represents a price that is automatically converted to wei based on the current price of ETH in a given currency. It uses the static PriceFeedWatcher that must be configured before creating an instance.

func NewAutoConvertedPrice added in v0.7.3 

func NewAutoConvertedPrice(currency string, basePrice *big.Rat, onUpdate func(*big.Rat)) (*AutoConvertedPrice, error)

NewAutoConvertedPrice creates a new AutoConvertedPrice instance with the given currency and base price. The onUpdate function is optional and gets called whenever the price is updated (also with the initial price). The Stop function must be called to free resources when the price is no longer needed.

func NewFixedPrice added in v0.7.3 

func NewFixedPrice(price *big.Rat) *AutoConvertedPrice

NewFixedPrice creates a new AutoConvertedPrice with a fixed price in wei.

func (*AutoConvertedPrice) Stop added in v0.7.3 

func (a *AutoConvertedPrice) Stop()

Stop unsubscribes from the price feed and frees resources from the auto-conversion loop.

func (*AutoConvertedPrice) Value added in v0.7.3 

func (a *AutoConvertedPrice) Value() *big.Rat

Value returns the current price in wei.

type Balance added in v0.5.0 

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

Balance holds the credit balance for a broadcast session

func NewBalance added in v0.5.0 

func NewBalance(addr ethcommon.Address, manifestID ManifestID, balances *AddressBalances) *Balance

NewBalance returns a Balance instance

func (*Balance) Credit added in v0.5.0 

func (b *Balance) Credit(amount *big.Rat)

Credit adds an amount to the balance

func (*Balance) StageUpdate added in v0.5.0 

func (b *Balance) StageUpdate(minCredit, ev *big.Rat) (int, *big.Rat, *big.Rat)

StageUpdate prepares a balance update by reserving the current balance and returning the number of tickets to send with a payment, the new credit represented by the payment and the existing credit (i.e reserved balance)

type Balances added in v0.5.0 

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

Balances holds credit balances on a per-stream basis

func NewBalances added in v0.5.0 

func NewBalances(ttl time.Duration) *Balances

NewBalances creates a Balances instance with the given ttl

func (*Balances) Balance added in v0.5.0 

func (b *Balances) Balance(id ManifestID) *big.Rat

Balance retrieves the current balance for a ManifestID

func (*Balances) Credit added in v0.5.0 

func (b *Balances) Credit(id ManifestID, amount *big.Rat)

Credit adds an an amount to the balance for a ManifestID

func (*Balances) Debit added in v0.5.0 

func (b *Balances) Debit(id ManifestID, amount *big.Rat)

Debit subtracts an amount from the balance for a ManifestID

func (*Balances) FixedPrice added in v0.7.2 

func (b *Balances) FixedPrice(id ManifestID) *big.Rat

FixedPrice retrieves the price fixed the given session

func (*Balances) Reserve added in v0.5.0 

func (b *Balances) Reserve(id ManifestID) *big.Rat

Reserve zeros the balance for a ManifestID and returns the current balance

func (*Balances) SetFixedPrice added in v0.7.2 

func (b *Balances) SetFixedPrice(id ManifestID, fixedPrice *big.Rat)

SetFixedPrice sets fixed price for the given session

func (*Balances) StartCleanup added in v0.5.0 

func (b *Balances) StartCleanup()

StartCleanup is a state flushing method to clean up the balances mapping

func (*Balances) StopCleanup added in v0.5.0 

func (b *Balances) StopCleanup()

StopCleanup stops the cleanup loop for Balances

type BasicPlaylistManager added in v0.5.0 

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

func NewBasicPlaylistManager added in v0.5.0 

func NewBasicPlaylistManager(manifestID ManifestID,
	storageSession, recordSession drivers.OSSession) *BasicPlaylistManager

NewBasicPlaylistManager create new BasicPlaylistManager struct

func (*BasicPlaylistManager) Cleanup added in v0.5.0 

func (mgr *BasicPlaylistManager) Cleanup()

func (*BasicPlaylistManager) FlushRecord added in v0.5.13 

func (mgr *BasicPlaylistManager) FlushRecord()

func (*BasicPlaylistManager) GetHLSMasterPlaylist added in v0.5.0 

func (mgr *BasicPlaylistManager) GetHLSMasterPlaylist() *m3u8.MasterPlaylist

GetHLSMasterPlaylist ..

func (*BasicPlaylistManager) GetHLSMediaPlaylist added in v0.5.0 

func (mgr *BasicPlaylistManager) GetHLSMediaPlaylist(rendition string) *m3u8.MediaPlaylist

GetHLSMediaPlaylist ...

func (*BasicPlaylistManager) GetOSSession added in v0.5.0 

func (mgr *BasicPlaylistManager) GetOSSession() drivers.OSSession

func (*BasicPlaylistManager) GetRecordOSSession added in v0.5.13 

func (mgr *BasicPlaylistManager) GetRecordOSSession() drivers.OSSession

func (*BasicPlaylistManager) InsertHLSSegment added in v0.5.0 

func (mgr *BasicPlaylistManager) InsertHLSSegment(profile *ffmpeg.VideoProfile, seqNo uint64, uri string,
	duration float64) error

func (*BasicPlaylistManager) InsertHLSSegmentJSON added in v0.5.13 

func (mgr *BasicPlaylistManager) InsertHLSSegmentJSON(profile *ffmpeg.VideoProfile, seqNo uint64, uri string,
	duration float64)

func (*BasicPlaylistManager) ManifestID added in v0.5.0 

func (mgr *BasicPlaylistManager) ManifestID() ManifestID

type Capabilities added in v0.5.10 

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

func CapabilitiesFromNetCapabilities added in v0.5.10 

func CapabilitiesFromNetCapabilities(caps *net.Capabilities) *Capabilities

func JobCapabilities added in v0.5.10 

func JobCapabilities(params *StreamParameters, segPar *SegmentParameters) (*Capabilities, error)

func NewCapabilities added in v0.5.10 

func NewCapabilities(caps []Capability, m []Capability) *Capabilities

func (*Capabilities) AddCapacity added in v0.5.30 

func (cap *Capabilities) AddCapacity(newCaps *Capabilities)

func (*Capabilities) CompatibleWith added in v0.5.10 

func (bcast *Capabilities) CompatibleWith(orch *net.Capabilities) bool

func (*Capabilities) LegacyOnly added in v0.5.10 

func (bcast *Capabilities) LegacyOnly() bool

func (*Capabilities) RemoveCapacity added in v0.5.30 

func (cap *Capabilities) RemoveCapacity(goneCaps *Capabilities)

func (*Capabilities) ToNetCapabilities added in v0.5.10 

func (c *Capabilities) ToNetCapabilities() *net.Capabilities

type Capability added in v0.5.10 

type Capability int
const (
	Capability_Invalid Capability = iota - 2
	Capability_Unused
	Capability_H264
	Capability_MPEGTS
	Capability_MP4
	Capability_FractionalFramerates
	Capability_StorageDirect
	Capability_StorageS3
	Capability_StorageGCS
	Capability_ProfileH264Baseline
	Capability_ProfileH264Main
	Capability_ProfileH264High
	Capability_ProfileH264ConstrainedHigh
	Capability_GOP
	Capability_AuthToken
	Capability_SceneClassification // Deprecated, but can't remove because of Capability ordering
	Capability_MPEG7VideoSignature
	Capability_HEVC_Decode
	Capability_HEVC_Encode
	Capability_VP8_Decode
	Capability_VP9_Decode
	Capability_VP8_Encode
	Capability_VP9_Encode
	Capability_H264_Decode_444_8bit
	Capability_H264_Decode_422_8bit
	Capability_H264_Decode_444_10bit
	Capability_H264_Decode_422_10bit
	Capability_H264_Decode_420_10bit
	Capability_SegmentSlicing
)

Do not rearrange these values! Only append.

func DefaultCapabilities added in v0.5.19 

func DefaultCapabilities() []Capability

func MandatoryOCapabilities added in v0.5.28 

func MandatoryOCapabilities() []Capability

func OptionalCapabilities added in v0.5.28 

func OptionalCapabilities() []Capability

func TestSoftwareTranscoderCapabilities added in v0.5.30 

func TestSoftwareTranscoderCapabilities(tmpdir string) (caps []Capability, fatalError error)

func TestTranscoderCapabilities added in v0.5.28 

func TestTranscoderCapabilities(devices []string, tf func(device string) TranscoderSession) (caps []Capability, fatalError error)

Test which capabilities transcoder supports

type CapabilityString added in v0.5.10 

type CapabilityString []uint64

func NewCapabilityString added in v0.5.10 

func NewCapabilityString(caps []Capability) CapabilityString

func (CapabilityString) CompatibleWith added in v0.5.10 

func (c1 CapabilityString) CompatibleWith(c2 CapabilityString) bool

type CapabilityTest added in v0.5.28 

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

type Constraints added in v0.5.10 

type Constraints struct{}

type JsonMediaTrack added in v0.5.13 

type JsonMediaTrack struct {
	Name       string `json:"name,omitempty"`
	Bandwidth  uint32 `json:"bandwidth,omitempty"`
	Resolution string `json:"resolution,omitempty"`
}

type JsonPlaylist added in v0.5.13 

type JsonPlaylist struct {
	DurationMs uint64               `json:"duration_ms,omitempty"` // total duration of the saved sagments
	Tracks     []JsonMediaTrack     `json:"tracks,omitempty"`
	Segments   map[string][]jsonSeg `json:"segments,omitempty"`
	// contains filtered or unexported fields
}

func NewJSONPlaylist added in v0.5.13 

func NewJSONPlaylist() *JsonPlaylist

func (*JsonPlaylist) AddDiscontinuedTrack added in v0.5.13 

func (jpl *JsonPlaylist) AddDiscontinuedTrack(ajpl *JsonPlaylist, trackName string)

AddDiscontinuedTrack appends all segments for specified rendition, mark first one as discontinued

func (*JsonPlaylist) AddMaster added in v0.5.13 

func (jpl *JsonPlaylist) AddMaster(ajpl *JsonPlaylist)

AddMaster adds data about tracks

func (*JsonPlaylist) AddSegmentsToMPL added in v0.5.13 

func (jpl *JsonPlaylist) AddSegmentsToMPL(manifestIDs []string, trackName string, mpl *m3u8.MediaPlaylist, extURL string)

AddSegmentsToMPL adds segments to the MediaPlaylist

func (*JsonPlaylist) AddTrack added in v0.5.13 

func (jpl *JsonPlaylist) AddTrack(ajpl *JsonPlaylist, trackName string)

AddTrack adds segments data for specified rendition

func (*JsonPlaylist) InsertHLSSegment added in v0.5.13 

func (jpl *JsonPlaylist) InsertHLSSegment(profile *ffmpeg.VideoProfile, seqNo uint64, uri string,
	duration float64)

type LivepeerNode 

type LivepeerNode struct {

	// Common fields
	Eth      eth.LivepeerEthClient
	WorkDir  string
	NodeType NodeType
	Database *common.DB

	// Transcoder public fields
	SegmentChans       map[ManifestID]SegmentChan
	Recipient          pm.Recipient
	SelectionAlgorithm common.SelectionAlgorithm
	OrchestratorPool   common.OrchestratorPool
	OrchPerfScore      *common.PerfScore
	OrchSecret         string
	Transcoder         Transcoder
	TranscoderManager  *RemoteTranscoderManager
	Balances           *AddressBalances
	Capabilities       *Capabilities
	AutoAdjustPrice    bool
	AutoSessionLimit   bool
	// Broadcaster public fields
	Sender pm.Sender

	StorageConfigs map[string]*transcodeConfig
	// contains filtered or unexported fields
}

LivepeerNode handles videos going in and coming out of the Livepeer network.

func NewLivepeerNode 

func NewLivepeerNode(e eth.LivepeerEthClient, wd string, dbh *common.DB) (*LivepeerNode, error)

NewLivepeerNode creates a new Livepeer Node. Eth can be nil.

func (*LivepeerNode) EndTranscodingSession added in v0.5.35 

func (node *LivepeerNode) EndTranscodingSession(sessionId string)

ends transcoding session and releases resources

func (*LivepeerNode) GetBasePrice added in v0.5.0 

func (n *LivepeerNode) GetBasePrice(b_eth_addr string) *big.Rat

GetBasePrice gets the base price for an orchestrator

func (*LivepeerNode) GetBasePrices added in v0.5.35 

func (n *LivepeerNode) GetBasePrices() map[string]*big.Rat

func (*LivepeerNode) GetCurrentCapacity added in v0.7.0 

func (n *LivepeerNode) GetCurrentCapacity() int

func (*LivepeerNode) GetServiceURI added in v0.5.0 

func (n *LivepeerNode) GetServiceURI() *url.URL

func (*LivepeerNode) SetBasePrice added in v0.5.0 

func (n *LivepeerNode) SetBasePrice(b_eth_addr string, price *AutoConvertedPrice)

SetBasePrice sets the base price for an orchestrator on the node

func (*LivepeerNode) SetMaxFaceValue added in v0.5.32 

func (n *LivepeerNode) SetMaxFaceValue(maxfacevalue *big.Int)

SetMaxFaceValue sets the faceValue upper limit for tickets received

func (*LivepeerNode) SetMaxSessions added in v0.7.0 

func (n *LivepeerNode) SetMaxSessions(s int)

func (*LivepeerNode) SetServiceURI added in v0.5.0 

func (n *LivepeerNode) SetServiceURI(newUrl *url.URL)

type LoadBalancingTranscoder added in v0.5.2 

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

func (*LoadBalancingTranscoder) EndTranscodingSession added in v0.5.35 

func (lb *LoadBalancingTranscoder) EndTranscodingSession(sessionId string)

func (*LoadBalancingTranscoder) Transcode added in v0.5.2 

func (lb *LoadBalancingTranscoder) Transcode(ctx context.Context, md *SegTranscodingMetadata) (*TranscodeData, error)

type LocalTranscoder added in v0.5.0 

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

func (*LocalTranscoder) EndTranscodingSession added in v0.5.35 

func (lt *LocalTranscoder) EndTranscodingSession(sessionId string)

func (*LocalTranscoder) Stop added in v0.5.35 

func (lt *LocalTranscoder) Stop()

func (*LocalTranscoder) Transcode added in v0.5.0 

func (lt *LocalTranscoder) Transcode(ctx context.Context, md *SegTranscodingMetadata) (td *TranscodeData, retErr error)

type ManifestID 

type ManifestID string

func RandomManifestID added in v0.5.0 

func RandomManifestID() ManifestID

type NetintTranscoder added in v0.5.30 

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

func (*NetintTranscoder) EndTranscodingSession added in v0.5.35 

func (nt *NetintTranscoder) EndTranscodingSession(sessionId string)

func (*NetintTranscoder) Stop added in v0.5.30 

func (nv *NetintTranscoder) Stop()

func (*NetintTranscoder) Transcode added in v0.5.30 

func (nv *NetintTranscoder) Transcode(ctx context.Context, md *SegTranscodingMetadata) (td *TranscodeData, retErr error)

type NodeType added in v0.3.3 

type NodeType int
const (
	DefaultNode NodeType = iota
	BroadcasterNode
	OrchestratorNode
	TranscoderNode
	RedeemerNode
)

func (NodeType) String added in v0.5.20 

func (t NodeType) String() string

type NvidiaTranscoder added in v0.5.0 

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

func (*NvidiaTranscoder) EndTranscodingSession added in v0.5.35 

func (nv *NvidiaTranscoder) EndTranscodingSession(sessionId string)

func (*NvidiaTranscoder) Stop added in v0.5.2 

func (nv *NvidiaTranscoder) Stop()

func (*NvidiaTranscoder) Transcode added in v0.5.0 

func (nv *NvidiaTranscoder) Transcode(ctx context.Context, md *SegTranscodingMetadata) (td *TranscodeData, retErr error)

type PlaylistManager added in v0.5.0 

type PlaylistManager interface {
	ManifestID() ManifestID
	// Implicitly creates master and media playlists
	// Inserts in media playlist given a link to a segment
	InsertHLSSegment(profile *ffmpeg.VideoProfile, seqNo uint64, uri string, duration float64) error

	InsertHLSSegmentJSON(profile *ffmpeg.VideoProfile, seqNo uint64, uri string, duration float64)

	GetHLSMasterPlaylist() *m3u8.MasterPlaylist

	GetHLSMediaPlaylist(rendition string) *m3u8.MediaPlaylist

	GetOSSession() drivers.OSSession

	GetRecordOSSession() drivers.OSSession

	FlushRecord()

	Cleanup()
}

PlaylistManager manages playlists and data for one video stream, backed by one object storage.

type RemoteTranscoder added in v0.5.0 

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

func NewRemoteTranscoder added in v0.5.0 

func NewRemoteTranscoder(m *RemoteTranscoderManager, stream net.Transcoder_RegisterTranscoderServer, capacity int, caps *Capabilities) *RemoteTranscoder

func (*RemoteTranscoder) Transcode added in v0.5.0 

func (rt *RemoteTranscoder) Transcode(logCtx context.Context, md *SegTranscodingMetadata) (*TranscodeData, error)

Transcode do actual transcoding by sending work to remote transcoder and waiting for the result

type RemoteTranscoderFatalError added in v0.5.0 

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

RemoteTranscoderFatalError wraps error to indicate that error is fatal

type RemoteTranscoderManager added in v0.5.0 

type RemoteTranscoderManager struct {
	RTmutex sync.Mutex
	// contains filtered or unexported fields
}

func NewRemoteTranscoderManager added in v0.5.0 

func NewRemoteTranscoderManager() *RemoteTranscoderManager

func (*RemoteTranscoderManager) EndTranscodingSession added in v0.5.35 

func (node *RemoteTranscoderManager) EndTranscodingSession(sessionId string)

func (*RemoteTranscoderManager) Manage added in v0.5.0 

func (rtm *RemoteTranscoderManager) Manage(stream net.Transcoder_RegisterTranscoderServer, capacity int, capabilities *net.Capabilities)

Manage adds transcoder to list of live transcoders. Doesn't return until transcoder disconnects

func (*RemoteTranscoderManager) RegisteredTranscodersCount added in v0.5.0 

func (rtm *RemoteTranscoderManager) RegisteredTranscodersCount() int

RegisteredTranscodersCount returns number of registered transcoders

func (*RemoteTranscoderManager) RegisteredTranscodersInfo added in v0.5.0 

func (rtm *RemoteTranscoderManager) RegisteredTranscodersInfo() []common.RemoteTranscoderInfo

RegisteredTranscodersInfo returns list of restered transcoder's information

func (*RemoteTranscoderManager) Transcode added in v0.5.0 

func (rtm *RemoteTranscoderManager) Transcode(ctx context.Context, md *SegTranscodingMetadata) (*TranscodeData, error)

Transcode does actual transcoding using remote transcoder from the pool

type RemoteTranscoderResult added in v0.5.0 

type RemoteTranscoderResult struct {
	TranscodeData *TranscodeData
	Err           error
}

type SegChanData added in v0.3.3 

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

type SegTranscodingMetadata added in v0.5.0 

type SegTranscodingMetadata struct {
	ManifestID         ManifestID
	Fname              string
	Seq                int64
	Hash               ethcommon.Hash
	Profiles           []ffmpeg.VideoProfile
	OS                 *net.OSInfo
	Duration           time.Duration
	Caps               *Capabilities
	AuthToken          *net.AuthToken
	CalcPerceptualHash bool
	SegmentParameters  *SegmentParameters
}

func (*SegTranscodingMetadata) Flatten added in v0.5.0 

func (md *SegTranscodingMetadata) Flatten() []byte

type SegmentChan added in v0.3.3 

type SegmentChan chan *SegChanData

type SegmentClip added in v0.7.1 

type SegmentClip struct {
	From time.Duration
	To   time.Duration
}

type SegmentParameters added in v0.5.31 

type SegmentParameters struct {
	Clip               *SegmentClip
	ForceSessionReinit bool
}

type StreamID 

type StreamID struct {
	// Base playback ID that related renditions are grouped under
	ManifestID ManifestID

	// Specifies the stream variant: the HLS source, transcoding profile, etc.
	// Also used for RTMP: when unguessable,this can function as a stream key.
	Rendition string
}

The StreamID represents a particular variant of a stream.

func MakeStreamID 

func MakeStreamID(mid ManifestID, profile *ffmpeg.VideoProfile) StreamID

func MakeStreamIDFromString added in v0.5.0 

func MakeStreamIDFromString(mid string, rendition string) StreamID

func SplitStreamIDString added in v0.5.0 

func SplitStreamIDString(str string) StreamID

func (StreamID) String 

func (id StreamID) String() string

type StreamParameters added in v0.5.9 

type StreamParameters struct {
	ManifestID        ManifestID
	ExternalStreamID  string
	SessionID         string
	RtmpKey           string
	Profiles          []ffmpeg.VideoProfile
	Resolution        string
	Format            ffmpeg.Format
	OS                drivers.OSSession
	RecordOS          drivers.OSSession
	Capabilities      *Capabilities
	VerificationFreq  uint
	Nonce             uint64
	Codec             ffmpeg.VideoCodec
	PixelFormat       ffmpeg.PixelFormat
	TimeoutMultiplier int // Used in the VOD workflow to allow us to be more lenient with timeouts
}

func (*StreamParameters) StreamID added in v0.5.9 

func (s *StreamParameters) StreamID() string

type TranscodeData added in v0.5.0 

type TranscodeData struct {
	Segments []*TranscodedSegmentData
	Pixels   int64 // Decoded pixels
}

TranscodeData contains the transcoding output for an input segment

type TranscodeResult added in v0.3.3 

type TranscodeResult struct {
	Err           error
	Sig           []byte
	TranscodeData *TranscodeData
	OS            drivers.OSSession
}

type TranscodedSegmentData added in v0.5.0 

type TranscodedSegmentData struct {
	Data   []byte
	PHash  []byte // Perceptual hash data (maybe nil)
	Pixels int64  // Encoded pixels
}

TranscodedSegmentData contains encoded data for a profile

type Transcoder added in v0.3.3 

type Transcoder interface {
	Transcode(ctx context.Context, md *SegTranscodingMetadata) (*TranscodeData, error)
	EndTranscodingSession(sessionId string)
}

func NewLoadBalancingTranscoder added in v0.5.2 

func NewLoadBalancingTranscoder(devices []string, newTranscoderFn newTranscoderFn) Transcoder

func NewLocalTranscoder added in v0.5.0 

func NewLocalTranscoder(workDir string) Transcoder

type TranscoderChan added in v0.5.0 

type TranscoderChan chan *RemoteTranscoderResult

type TranscoderSession added in v0.5.2 

type TranscoderSession interface {
	Transcoder
	Stop()
}

func NewNetintTranscoder added in v0.5.30 

func NewNetintTranscoder(gpu string) TranscoderSession

func NewNvidiaTranscoder added in v0.5.0 

func NewNvidiaTranscoder(gpu string) TranscoderSession

type UnrecoverableError added in v0.5.23 

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

func NewUnrecoverableError added in v0.5.23 

func NewUnrecoverableError(err error) UnrecoverableError

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