79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
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package webrtc
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import (
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"encoding/json"
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)
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// BundlePolicy affects which media tracks are negotiated if the remote
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// endpoint is not bundle-aware, and what ICE candidates are gathered. If the
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// remote endpoint is bundle-aware, all media tracks and data channels are
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// bundled onto the same transport.
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type BundlePolicy int
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const (
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// BundlePolicyBalanced indicates to gather ICE candidates for each
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// media type in use (audio, video, and data). If the remote endpoint is
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// not bundle-aware, negotiate only one audio and video track on separate
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// transports.
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BundlePolicyBalanced BundlePolicy = iota + 1
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// BundlePolicyMaxCompat indicates to gather ICE candidates for each
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// track. If the remote endpoint is not bundle-aware, negotiate all media
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// tracks on separate transports.
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BundlePolicyMaxCompat
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// BundlePolicyMaxBundle indicates to gather ICE candidates for only
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// one track. If the remote endpoint is not bundle-aware, negotiate only
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// one media track.
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BundlePolicyMaxBundle
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)
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// This is done this way because of a linter.
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const (
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bundlePolicyBalancedStr = "balanced"
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bundlePolicyMaxCompatStr = "max-compat"
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bundlePolicyMaxBundleStr = "max-bundle"
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)
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func newBundlePolicy(raw string) BundlePolicy {
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switch raw {
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case bundlePolicyBalancedStr:
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return BundlePolicyBalanced
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case bundlePolicyMaxCompatStr:
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return BundlePolicyMaxCompat
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case bundlePolicyMaxBundleStr:
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return BundlePolicyMaxBundle
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default:
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return BundlePolicy(Unknown)
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}
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}
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func (t BundlePolicy) String() string {
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switch t {
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case BundlePolicyBalanced:
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return bundlePolicyBalancedStr
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case BundlePolicyMaxCompat:
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return bundlePolicyMaxCompatStr
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case BundlePolicyMaxBundle:
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return bundlePolicyMaxBundleStr
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default:
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return ErrUnknownType.Error()
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}
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}
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// UnmarshalJSON parses the JSON-encoded data and stores the result
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func (t *BundlePolicy) UnmarshalJSON(b []byte) error {
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var val string
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if err := json.Unmarshal(b, &val); err != nil {
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return err
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}
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*t = newBundlePolicy(val)
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return nil
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}
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// MarshalJSON returns the JSON encoding
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func (t BundlePolicy) MarshalJSON() ([]byte, error) {
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return json.Marshal(t.String())
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}
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