feat(transcode): add a generic transcoding package for encoding/decoding/caching

server/transcode/transcoder_none.go

@@ -0,0 +1,19 @@
+package transcode
+
+import (
+	"context"
+	"io"
+	"os"
+)
+
+type NoneTranscoder struct{}
+
+var _ Transcoder = (*NoneTranscoder)(nil)
+
+func NewNoneTranscoder() *NoneTranscoder {
+	return &NoneTranscoder{}
+}
+
+func (*NoneTranscoder) Transcode(ctx context.Context, _ Profile, in string) (io.ReadCloser, error) {
+	return os.Open(in)
+}