JSDoc: Class: shaka.transmuxer.LocTransmuxer

Class: shaka.transmuxer.LocTransmuxer

Constructor

new LocTransmuxer(mimeType)

Parameters:

Name	Type	Description
`mimeType`	string

Implements:

shaka.extern.Transmuxer

Source:

lib/transmuxer/loc_transmuxer.js, line 28

Members

SUPPORTED_AUDIO_CODECS_ :Array<string>

Supported audio codecs.

Type:

Array<string>

Source:

lib/transmuxer/loc_transmuxer.js, line 596

SUPPORTED_VIDEO_CODECS_ :Array<string>

Supported video codecs.

Type:

Array<string>

Source:

lib/transmuxer/loc_transmuxer.js, line 607

VIDEO_TIMESCALE_ :number

Type:

number

Source:

lib/transmuxer/loc_transmuxer.js, line 588

avcInfo_ :?{videoConfig: !Uint8Array, hSpacing: number, vSpacing: number, height: number, width: number}

Cached result of H264.parseInfo(), populated from the first IDR frame that carries SPS+PPS. Reused for all subsequent non-IDR frames.

Type:

?{videoConfig: !Uint8Array, hSpacing: number, vSpacing: number, height: number, width: number}

Source:

lib/transmuxer/loc_transmuxer.js, line 51

frameIndex_ :number

Type:

number

Source:

lib/transmuxer/loc_transmuxer.js, line 37

hvcInfo_ :?{videoConfig: !Uint8Array, hSpacing: number, vSpacing: number, height: number, width: number}

Cached result of H265.parseInfo(), populated from the first IDR frame that carries VPS+SPS+PPS. Reused for all subsequent non-IDR frames.

Type:

?{videoConfig: !Uint8Array, hSpacing: number, vSpacing: number, height: number, width: number}

Source:

lib/transmuxer/loc_transmuxer.js, line 59

initSegments :Map<string, !Uint8Array>

Type:

Map<string, !Uint8Array>

Source:

lib/transmuxer/loc_transmuxer.js, line 40

lastInitSegment_ :Uint8Array

Type:

Uint8Array

Source:

lib/transmuxer/loc_transmuxer.js, line 43

originalMimeType_ :string

Type:

string

Source:

lib/transmuxer/loc_transmuxer.js, line 34

Methods

convertCodecs(contentType, mimeType) → {string}

For any stream, convert its codecs to MP4 codecs.

Parameters:

Name	Type	Description
`contentType`	string
`mimeType`	string

Implements:

shaka.extern.Transmuxer#convertCodecs

Source:

lib/transmuxer/loc_transmuxer.js, line 145

Returns:

Type: string

destroy()

Destroy

Implements:

shaka.extern.Transmuxer#destroy

Source:

lib/transmuxer/loc_transmuxer.js, line 67

extractNalus_(datanon-null, codec) → {Array<shaka.extern.VideoNalu>}

Extracts NAL units from a LOC video payload. The LOC spec (§2.1) allows two framing formats: - **Length-prefix** (§2.1.3): 4-byte big-endian length before each NALU. This is the canonical AVCC/HVCC format. - **Start-code** (§2.1.4): a 4-byte value of `0x00000001` (= 1 in network byte order) is reserved as a start-code sentinel; the extractor then scans ahead for the next 3- or 4-byte start code boundary. Per the spec a length value of 1 SHOULD be interpreted this way.

Parameters:

Name	Type	Description
`data`	Uint8Array
`codec`	string	Normalised codec string: 'avc' or 'hvc'

Source:

lib/transmuxer/loc_transmuxer.js, line 259

Returns:

Type: Array<shaka.extern.VideoNalu>

getAacStreamInfo_(datanon-null, stream, duration, referencenullable) → {shaka.util.Mp4Generator.StreamInfo}

Parameters:

Name	Type	Attributes
`data`	Uint8Array
`stream`	shaka.extern.Stream
`duration`	number
`reference`	shaka.media.SegmentReference	<nullable>

Source:

lib/transmuxer/loc_transmuxer.js, line 487

Returns:

Type: shaka.util.Mp4Generator.StreamInfo

getAvcStreamInfo_(datanon-null, stream, referencenullable, duration) → {shaka.util.Mp4Generator.StreamInfo}

Parameters:

Name	Type	Attributes
`data`	Uint8Array
`stream`	shaka.extern.Stream
`reference`	shaka.media.SegmentReference	<nullable>
`duration`	number

Source:

lib/transmuxer/loc_transmuxer.js, line 343

Returns:

Type: shaka.util.Mp4Generator.StreamInfo

getHvcStreamInfo_(datanon-null, stream, duration, referencenullable) → {shaka.util.Mp4Generator.StreamInfo}

Parameters:

Name	Type	Attributes
`data`	Uint8Array
`stream`	shaka.extern.Stream
`duration`	number
`reference`	shaka.media.SegmentReference	<nullable>

Source:

lib/transmuxer/loc_transmuxer.js, line 414

Returns:

Type: shaka.util.Mp4Generator.StreamInfo

getOpusStreamInfo_(datanon-null, stream, duration, referencenullable) → {shaka.util.Mp4Generator.StreamInfo}

Parameters:

Name	Type	Attributes
`data`	Uint8Array
`stream`	shaka.extern.Stream
`duration`	number
`reference`	shaka.media.SegmentReference	<nullable>

Source:

lib/transmuxer/loc_transmuxer.js, line 533

Returns:

Type: shaka.util.Mp4Generator.StreamInfo

getOriginalMimeType() → {string}

Returns the original mimetype of the transmuxer.

Implements:

shaka.extern.Transmuxer#getOriginalMimeType

Source:

lib/transmuxer/loc_transmuxer.js, line 167

Returns:

Type: string

isLocContainer_(mimeType) → {boolean}

Parameters:

Name	Type	Description
`mimeType`	string

Source:

lib/transmuxer/loc_transmuxer.js, line 136

Returns:

Type: boolean

isSupported(mimeType, contentTypeopt) → {boolean}

Check if the mime type and the content type is supported.

Parameters:

Name	Type	Attributes	Description
`mimeType`	string
`contentType`	string	<optional>

Implements:

shaka.extern.Transmuxer#isSupported

Source:

lib/transmuxer/loc_transmuxer.js, line 81

Returns:

Type: boolean

transmux(data, stream, referencenullable, duration, contentType) → {Promise<(!Uint8Array|!shaka.extern.TransmuxerOutput)>}

Transmux a input data to MP4.

Parameters:

Name	Type	Attributes	Description
`data`	BufferSource
`stream`	shaka.extern.Stream
`reference`	shaka.media.SegmentReference	<nullable>	The segment reference, or null for init segments
`duration`	number
`contentType`	string

Implements:

shaka.extern.Transmuxer#transmux

Source:

lib/transmuxer/loc_transmuxer.js, line 176

Returns:

If you only want to return the result, use Uint8Array, if you want to separate the initialization segment and the data segment, you have to use shaka.extern.TransmuxerOutput

Type: Promise<(!Uint8Array|!shaka.extern.TransmuxerOutput)>