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ioreader.go
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ioreader.go
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package mediadevices
import "github.com/pion/mediadevices/pkg/codec"
type EncodedBuffer struct {
Data []byte
Samples uint32
}
type EncodedReadCloser interface {
Read() (EncodedBuffer, func(), error)
Close() error
codec.Controllable
}
type encodedReadCloserImpl struct {
readFn func() (EncodedBuffer, func(), error)
closeFn func() error
controllerFn func() codec.EncoderController
}
func (r *encodedReadCloserImpl) Read() (EncodedBuffer, func(), error) {
return r.readFn()
}
func (r *encodedReadCloserImpl) Close() error {
return r.closeFn()
}
func (r *encodedReadCloserImpl) Controller() codec.EncoderController {
return r.controllerFn()
}
type encodedIOReadCloserImpl struct {
readFn func([]byte) (int, error)
closeFn func() error
controller func() codec.EncoderController
}
func newEncodedIOReadCloserImpl(reader EncodedReadCloser) *encodedIOReadCloserImpl {
var encoded EncodedBuffer
release := func() {}
return &encodedIOReadCloserImpl{
readFn: func(b []byte) (int, error) {
var err error
if len(encoded.Data) == 0 {
release()
encoded, release, err = reader.Read()
if err != nil {
reader.Close()
return 0, err
}
}
n := copy(b, encoded.Data)
encoded.Data = encoded.Data[n:]
return n, nil
},
closeFn: reader.Close,
controller: reader.Controller,
}
}
func (r *encodedIOReadCloserImpl) Read(b []byte) (int, error) {
return r.readFn(b)
}
func (r *encodedIOReadCloserImpl) Close() error {
return r.closeFn()
}
func (r *encodedIOReadCloserImpl) Controller() codec.EncoderController {
return r.controller()
}