76 lines
2.4 KiB
Go
76 lines
2.4 KiB
Go
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package interceptor
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// Chain is an interceptor that runs all child interceptors in order.
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type Chain struct {
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interceptors []Interceptor
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}
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// NewChain returns a new Chain interceptor.
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func NewChain(interceptors []Interceptor) *Chain {
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return &Chain{interceptors: interceptors}
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}
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// BindRTCPReader lets you modify any incoming RTCP packets. It is called once per sender/receiver, however this might
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// change in the future. The returned method will be called once per packet batch.
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func (i *Chain) BindRTCPReader(reader RTCPReader) RTCPReader {
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for _, interceptor := range i.interceptors {
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reader = interceptor.BindRTCPReader(reader)
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}
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return reader
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}
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// BindRTCPWriter lets you modify any outgoing RTCP packets. It is called once per PeerConnection. The returned method
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// will be called once per packet batch.
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func (i *Chain) BindRTCPWriter(writer RTCPWriter) RTCPWriter {
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for _, interceptor := range i.interceptors {
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writer = interceptor.BindRTCPWriter(writer)
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}
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return writer
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}
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// BindLocalStream lets you modify any outgoing RTP packets. It is called once for per LocalStream. The returned method
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// will be called once per rtp packet.
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func (i *Chain) BindLocalStream(ctx *StreamInfo, writer RTPWriter) RTPWriter {
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for _, interceptor := range i.interceptors {
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writer = interceptor.BindLocalStream(ctx, writer)
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}
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return writer
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}
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// UnbindLocalStream is called when the Stream is removed. It can be used to clean up any data related to that track.
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func (i *Chain) UnbindLocalStream(ctx *StreamInfo) {
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for _, interceptor := range i.interceptors {
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interceptor.UnbindLocalStream(ctx)
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}
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}
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// BindRemoteStream lets you modify any incoming RTP packets. It is called once for per RemoteStream. The returned method
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// will be called once per rtp packet.
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func (i *Chain) BindRemoteStream(ctx *StreamInfo, reader RTPReader) RTPReader {
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for _, interceptor := range i.interceptors {
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reader = interceptor.BindRemoteStream(ctx, reader)
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}
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return reader
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}
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// UnbindRemoteStream is called when the Stream is removed. It can be used to clean up any data related to that track.
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func (i *Chain) UnbindRemoteStream(ctx *StreamInfo) {
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for _, interceptor := range i.interceptors {
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interceptor.UnbindRemoteStream(ctx)
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}
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}
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// Close closes the Interceptor, cleaning up any data if necessary.
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func (i *Chain) Close() error {
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var errs []error
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for _, interceptor := range i.interceptors {
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errs = append(errs, interceptor.Close())
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}
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return flattenErrs(errs)
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}
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