media-codecs

v2.0.2

Published

5 months ago

Get a codec parameter string (like 'avc1.4d002a') from human readable options (like { name: 'Main', level: '4.2' }) and back to a descriptive name ('AVC Main Profile Level 4.2').

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dmnsgn

codecs webcodecs avc mp4 vp webm

media-codecs

Get a codec parameter string (like "avc1.4d002a") from human readable options (like { name: "Main", level: "4.2" }) and back to a descriptive name ("AVC Main Profile Level 4.2").

Useful for checking supported codecs with HTMLMediaElement.canPlayType / MediaSource.isTypeSupported and to pass as option for the WebCodecs API VideoEncoder configure parameters. Supports Advanced Video Coding (AVC), Video Partition (VP8/VP9), AOMedia Video (AV1) and partially High Efficiency Video Coding HEVC.

See the demo that checks current browser support of all video codecs and MDN's Codecs in common media types.

Installation

npm install media-codecs

Usage

import { AVC } from "media-codecs";

const codec = AVC.getCodec({ profile: "Main", level: "4.2" });
// => avc1.4d002a
const mimeType = `video/mp4;codecs="${codec}"`;

console.log(MediaSource.isTypeSupported(mimeType));

Roadmap:

[ ] HEVC compatibility and constraints
[ ] VP, HEVC and AV1 optional parameters

API

Modules

Typedefs

media-codecs

media-codecs
- .VP : vp
- .AV : av
- .AVC : avc
- .HEVC : hevc

media-codecs.VP : vp

Kind: static property of media-codecs

media-codecs.AV : av

Kind: static property of media-codecs

media-codecs.AVC : avc

Kind: static property of media-codecs

media-codecs.HEVC : hevc

Kind: static property of media-codecs

av

av
- .AV_CODECS : Array.<CodecItem>
- .AV_PROFILES : Array.<AVProfileItem>
- .AV_LEVELS : Array.<string>
- .AV_TIER : Array.<string>
- .AV_BIT_DEPTH : Array.<number>
- .getAllItems() ⇒ Array.<MediaCodecItem>
- .getCodec(options) ⇒ string
- .getCodecName(codec) ⇒ string

av.AV_CODECS : Array.<CodecItem>

List of codecs

Kind: static constant of av

av.AV_PROFILES : Array.<AVProfileItem>

List of AV profiles numbers

Kind: static constant of av See: av1-spec

av.AV_LEVELS : Array.<string>

AV Levels

Kind: static constant of av See: av1-spec

av.AV_TIER : Array.<string>

List of supported tier

Kind: static constant of av

av.AV_BIT_DEPTH : Array.<number>

List of supported bit depth

Kind: static constant of av

av.getAllItems() ⇒ Array.<MediaCodecItem>

Return a list of all possible codec parameter string and their human readable names

Kind: static method of av

av.getCodec(options) ⇒ string

Get a codec parameter string

Kind: static method of av

| Param | Type | | ------- | ---------------------------------------------- | | options | AVCodecOptions |

av.getCodecName(codec) ⇒ string

Get a codec human readbable name

Kind: static method of av

| Param | Type | Description | | ----- | ------------------- | -------------------------------------------------- | | codec | string | a codec string (av01.P.LLT.DD eg. "av01.P.LLT.DD") |

avc

avc
- .AVC_PROFILES : Array.<VCProfileItem>
- .AVC_LEVELS : Array.<number>
- .getAllItems() ⇒ Array.<MediaCodecItem>
- .getCodec(options) ⇒ string
- .getCodecName(codec) ⇒ string

avc.AVC_PROFILES : Array.<VCProfileItem>

List of profiles with their profile numbers (PP) and the constraints component (CC).

Kind: static constant of avc

avc.AVC_LEVELS : Array.<number>

AVC Levels

Kind: static constant of avc See: wikipedia.org

avc.getAllItems() ⇒ Array.<MediaCodecItem>

Return a list of all possible codec parameter string and their human readable names

Kind: static method of avc

avc.getCodec(options) ⇒ string

Get a codec parameter string

Kind: static method of avc

| Param | Type | | ------- | ------------------------------------------------ | | options | AVCCodecOptions |

avc.getCodecName(codec) ⇒ string

Get a codec human readbable name

Kind: static method of avc

| Param | Type | Description | | ----- | ------------------- | -------------------------------------------------- | | codec | string | a codec string (cccc.PP.LL.DD eg. "vp09.00.10.08") |

hevc

hevc
- .HEVC_PROFILES : Array.<VCProfileItem>
- .HEVC_PROFILE_COMPATIBILITY : Array.<number>
- .HEVC_LEVELS : Array.<string>
- .HEVC_TIER : Array.<string>
- .getAllItems() ⇒ Array.<MediaCodecItem>
- .getCodec(options) ⇒ string
- .getCodecName(codec) ⇒ string

hevc.HEVC_PROFILES : Array.<VCProfileItem>

List of profiles with their profile numbers (PP) and the compatibility (C).

See Annexe 3 Profiles

Kind: static constant of hevc

hevc.HEVC_PROFILE_COMPATIBILITY : Array.<number>

HEVC Profile Compatibility as a number in the 0..32 range TODO: is that correct

Kind: static constant of hevc

hevc.HEVC_LEVELS : Array.<string>

HEVC Levels

Kind: static constant of hevc See: hevc-levels

hevc.HEVC_TIER : Array.<string>

List of supported tier

Kind: static constant of hevc

hevc.getAllItems() ⇒ Array.<MediaCodecItem>

Return a list of all possible codec parameter string and their human readable names

Kind: static method of hevc

hevc.getCodec(options) ⇒ string

Get a codec parameter string

Kind: static method of hevc

| Param | Type | | ------- | -------------------------------------------------- | | options | HEVCCodecOptions |

hevc.getCodecName(codec) ⇒ string

Get a codec human readbable name

Kind: static method of hevc

| Param | Type | Description | | ----- | ------------------- | ------------------------------------------------------- | | codec | string | a codec string (cccc.PP.C.TLL.CC eg. "hev1.1.3.H34.B0") |

vp

vp
- .VP_CODECS : Array.<CodecItem>
- .VP_PROFILES : Array.<number>
- .VP_LEVELS : Array.<string>
- .VP_BIT_DEPTH : Array.<number>
- .getAllItems() ⇒ Array.<MediaCodecItem>
- .getCodec(options) ⇒ string
- .getCodecName(codec) ⇒ string

vp.VP_CODECS : Array.<CodecItem>

List of codecs

Kind: static constant of vp

vp.VP_PROFILES : Array.<number>

List of VP profiles numbers

Kind: static constant of vp

vp.VP_LEVELS : Array.<string>

VP Levels

Kind: static constant of vp See: webmproject.org

vp.VP_BIT_DEPTH : Array.<number>

List of supported bit depth

Kind: static constant of vp

vp.getAllItems() ⇒ Array.<MediaCodecItem>

Return a list of all possible codec parameter string and their human readable names

Kind: static method of vp

vp.getCodec(options) ⇒ string

Get a codec parameter string

Kind: static method of vp

| Param | Type | | ------- | ---------------------------------------------- | | options | VPCodecOptions |

vp.getCodecName(codec) ⇒ string

Get a codec human readbable name

Kind: static method of vp

| Param | Type | Description | | ----- | ------------------- | ------------------------------------------------ | | codec | string | a codec string (avc1[.PPCCLL] eg. "avc1.640028") |