new media information box

Box.go

@@ -38,6 +38,8 @@ const (
 	BoxTypeMediaHeaderBox = "mdhd"
 	// BoxTypeHandlerReferenceBox Handler Reference Box
 	BoxTypeHandlerReferenceBox = "hdlr"
+	// BoxTypeMediaInformationBox Media Information Box
+	BoxTypeMediaInformationBox = "minf"
 	// BoxTypeMovieFragment Movie Fragment Box
 	BoxTypeMovieFragment = "moof"
 	// BoxTypeMovieFragmentHeader Movie Fragment Header Box

MediaInformationBox.go

@@ -0,0 +1,39 @@
+// 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
+
+// MediaInformationBox media information box struct
+// 8.4.4 Media Information Box
+//
+// Box Type: ‘minf’
+// Container: Media Box (‘mdia’)
+// Mandatory: Yes
+// Quantity: Exactly one
+//
+// This box contains all the objects that declare characteristic information of the media in the track.
+type MediaInformationBox struct {
+	*Box
+	ChildBoxes []interface{}
+}
+
+// ParseMediaInformationBox creates a new media information box struct based on bytes
+func ParseMediaInformationBox(filePosition uint64, headerSize uint32, content []byte) (*MediaBox, error) {
+	box := &MediaBox{Box: &Box{filePosition, headerSize}}
+
+	// parse child boxes
+	var err error
+	box.ChildBoxes, err = box.parseChildBoxes(filePosition, content)
+	return box, err
+}

Parser.go

@@ -122,6 +122,8 @@ func parseNextBox(reader io.Reader, filePosition uint64) (box interface{}, endPo
 		box = ParseMediaHeaderBox(filePosition, boxHeaderSize, boxContentBytes)
 	case BoxTypeHandlerReferenceBox:
 		box = ParseHandlerReferenceBox(filePosition, boxHeaderSize, boxContentBytes)
+	case BoxTypeMediaInformationBox:
+		box, err = ParseMediaInformationBox(filePosition, boxHeaderSize, boxContentBytes)
 	case BoxTypeMovieFragment:
 		box, err = ParseMovieFragmentBox(filePosition, boxHeaderSize, boxContentBytes)
 	case BoxTypeMovieFragmentHeader:

README.md

@@ -30,7 +30,7 @@ Implementation progress
 | 8.4.1 Media Box                                    | mdia           |   100% |
 | 8.4.2 Media Header Box                             | mdhd           |    80% |
 | 8.4.3 Handler Reference Box                        | hdlr           |   100% |
-| 8.4.4 Media Information Box                        | minf           |      - |
+| 8.4.4 Media Information Box                        | minf           |   100% |
 | 8.4.5.2 Null Media Header Box                      | nmhd           |      - |
 | 8.4.6 Extended language tag                        | elng           |      - |
 | 8.5.1 Sample Table Box                             | stbl           |      - |