[英]How to split large video as chunks by each size of 5 MB, Swift
我正在研究視頻上傳過程,需要將大視頻作為多個塊上傳。 每個塊的大小應為 5 MB 。
請在swift中分享將大型視頻轉換為多個大小不超過 5 MB 的塊的代碼。 任何幫助深表感謝
嘗試這個,
let selectedSize = selectedVideoSizeInMB
let seconds = durationInSeconds
print("Size", selectedSize)
print("Seconds", seconds)
let splitDuration: Int = Int(seconds / (selectedSize/5))
print("Split Duration", splitDuration)
do {
let data = try Data(contentsOf: videoUrl)
let dataLen = data.count
print("Data Size", data.count)
let chunkSize = ((1024 * 1000) * 5) // MB
print("Chunk Size", chunkSize)
let fullChunks = Int(dataLen / chunkSize)
let totalChunks = fullChunks + (dataLen % 1024 != 0 ? 1 : 0)
print("Chunk count", totalChunks)
var chunks:[Data] = [Data]()
for chunkCounter in 0..<totalChunks {
var chunk:Data
let chunkBase = chunkCounter * chunkSize
var diff = chunkSize
if(chunkCounter == totalChunks - 1) {
diff = dataLen - chunkBase
}
let range:Range<Data.Index> = chunkBase..<(chunkBase + diff)
chunk = data.subdata(in: range)
chunks.append(chunk)
print("The size is \(chunk.count)")
}
self.chunksDataArray = chunks
print("Total Chunk", chunks.count)
}catch{
return
}
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