Imports github.com/geiqin/duration/audio/mp3 github.com/geiqin/duration/audio/wav github.com/geiqin/duration/video github.com/geiqin/gotools/helper github.com/qiniu/go-sdk/v7/auth/qbox github.com/qiniu/go-sdk/v7/storage Standard library imports bytes context errors fmt image image/gif image/jpeg image/png io log math mime/multipart path strings time