48 lines
1.4 KiB
Swift
48 lines
1.4 KiB
Swift
import Foundation
|
|
|
|
struct MP4MediaHeaderBox: MP4BoxConvertible {
|
|
// MARK: MP4BoxConvertible
|
|
var size: UInt32 = 0
|
|
var type: String = ""
|
|
var offset: UInt64 = 0
|
|
var children: [MP4BoxConvertible] = []
|
|
// MARK: MP4MediaHeaderBox
|
|
var version: UInt8 = 0
|
|
var creationTime: UInt32 = 0
|
|
var modificationTime: UInt32 = 0
|
|
var timeScale: UInt32 = 0
|
|
var duration: UInt32 = 0
|
|
var language: UInt16 = 0
|
|
var quality: UInt16 = 0
|
|
}
|
|
|
|
extension MP4MediaHeaderBox: DataConvertible {
|
|
var data: Data {
|
|
get {
|
|
Data()
|
|
}
|
|
set {
|
|
do {
|
|
let buffer = ByteArray(data: newValue)
|
|
size = try buffer.readUInt32()
|
|
type = try buffer.readUTF8Bytes(4)
|
|
version = try buffer.readUInt8()
|
|
buffer.position += 3
|
|
creationTime = try buffer.readUInt32()
|
|
modificationTime = try buffer.readUInt32()
|
|
timeScale = try buffer.readUInt32()
|
|
duration = try buffer.readUInt32()
|
|
language = try buffer.readUInt16()
|
|
quality = try buffer.readUInt16()
|
|
} catch {
|
|
logger.error(error)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
extension MP4Box.Names {
|
|
static let mvhd = MP4Box.Name<MP4MediaHeaderBox>(rawValue: "mvhd")
|
|
static let mdhd = MP4Box.Name<MP4MediaHeaderBox>(rawValue: "mdhd")
|
|
}
|