mp4/MovieBox.go
2024-12-03 19:24:00 +01:00

51 lines
1.6 KiB
Go
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

// Copyright 2024 Martin Riedl
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package gomp4
// MovieBox movie box struct
//
// 8.2.1 Movie Box
// Box Type: moov
// Container: File
// Mandatory: Yes
// Quantity: Exactly one
//
// The metadata for a presentation is stored in the single Movie Box which occurs at the toplevel of a file.
// Normally this box is close to the beginning or end of the file, though this is not required.
type MovieBox struct {
*Box
ChildBoxes []any
}
// BoxTypeMovie Movie Box
const BoxTypeMovie = "moov"
func init() {
BoxDefinitions = append(BoxDefinitions, BoxDefinition{
Type: BoxTypeMovie,
ParentTypes: []string{boxTypeParentFile},
Parser: ParseMovieBox,
})
}
// ParseMovieBox creates a new movie box struct based on bytes
func ParseMovieBox(parser *Parser, filePosition uint64, headerSize uint32, content []byte) (any, error) {
box := &MovieBox{Box: &Box{filePosition, headerSize}}
// parse content boxes
var err error
box.ChildBoxes, err = box.parseChildBoxes(parser, BoxTypeMovie, filePosition, content)
return box, err
}