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rotate video #188

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rotate video #188

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4 changes: 3 additions & 1 deletion android/src/main/kotlin/com/example/video_compress/VideoCompressPlugin.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -84,6 +84,7 @@ class VideoCompressPlugin : MethodCallHandler, FlutterPlugin {
val duration = call.argument<Int>("duration")
val includeAudio = call.argument<Boolean>("includeAudio") ?: true
val frameRate = if (call.argument<Int>("frameRate")==null) 30 else call.argument<Int>("frameRate")
val rotation = if (call.argument<Int>("rotation")==null) 0 else call.argument<Int>("rotation")

val tempDir: String = context.getExternalFilesDir("video_compress")!!.absolutePath
val out = SimpleDateFormat("yyyy-MM-dd hh-mm-ss").format(Date())
Expand Down Expand Up @@ -124,7 +125,7 @@ class VideoCompressPlugin : MethodCallHandler, FlutterPlugin {
}
7 -> {
videoTrackStrategy = DefaultVideoStrategy.atMost(1080, 1920).build()
}
}
}

audioTrackStrategy = if (includeAudio) {
Expand All @@ -151,6 +152,7 @@ class VideoCompressPlugin : MethodCallHandler, FlutterPlugin {
.addDataSource(dataSource)
.setAudioTrackStrategy(audioTrackStrategy)
.setVideoTrackStrategy(videoTrackStrategy)
.setVideoRotation(rotation!!)
.setListener(object : TranscoderListener {
override fun onTranscodeProgress(progress: Double) {
channel.invokeMethod("updateProgress", progress * 100.00)
Expand Down
68 changes: 48 additions & 20 deletions ios/Classes/SwiftVideoCompressPlugin.swift
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Expand Up @@ -42,8 +42,9 @@ public class SwiftVideoCompressPlugin: NSObject, FlutterPlugin {
let duration = args!["duration"] as? Double
let includeAudio = args!["includeAudio"] as? Bool
let frameRate = args!["frameRate"] as? Int
let rotation = args!["rotation"] as? Int
compressVideo(path, quality, deleteOrigin, startTime, duration, includeAudio,
frameRate, result)
frameRate, rotation, result)
case "cancelCompression":
cancelCompression(result)
case "deleteAllCache":
Expand Down Expand Up @@ -175,7 +176,7 @@ public class SwiftVideoCompressPlugin: NSObject, FlutterPlugin {
}

private func compressVideo(_ path: String,_ quality: NSNumber,_ deleteOrigin: Bool,_ startTime: Double?,
_ duration: Double?,_ includeAudio: Bool?,_ frameRate: Int?,
_ duration: Double?,_ includeAudio: Bool?,_ frameRate: Int?, _ rotation: Int?,
_ result: @escaping FlutterResult) {
let sourceVideoUrl = Utility.getPathUrl(path)
let sourceVideoType = "mp4"
Expand All @@ -199,31 +200,58 @@ public class SwiftVideoCompressPlugin: NSObject, FlutterPlugin {
let timeRange: CMTimeRange = CMTimeRangeMake(start: cmStartTime, duration: cmDurationTime)

let isIncludeAudio = includeAudio != nil ? includeAudio! : true

let session = getComposition(isIncludeAudio, timeRange, sourceVideoTrack!)

let exporter = AVAssetExportSession(asset: session, presetName: getExportPreset(quality))!

exporter.outputURL = compressionUrl
exporter.outputFileType = AVFileType.mp4
exporter.shouldOptimizeForNetworkUse = true

if frameRate != nil {
let videoComposition = AVMutableVideoComposition(propertiesOf: sourceVideoAsset)
videoComposition.frameDuration = CMTimeMake(value: 1, timescale: Int32(frameRate!))
exporter.videoComposition = videoComposition

//input file
let asset = AVAsset.init(url: sourceVideoUrl)
print(asset)
let composition = AVMutableComposition.init()
composition.addMutableTrack(withMediaType: AVMediaType.video, preferredTrackID: kCMPersistentTrackID_Invalid)

//input clip
let clipVideoTrack = asset.tracks(withMediaType: AVMediaType.video)[0]

//make it composition
let videoComposition = AVMutableVideoComposition()
switch rotation {
case 0: videoComposition.renderSize = CGSize(width: CGFloat(clipVideoTrack.naturalSize.width), height: CGFloat(clipVideoTrack.naturalSize.height))
case 180: videoComposition.renderSize = CGSize(width: CGFloat(clipVideoTrack.naturalSize.width), height: CGFloat(clipVideoTrack.naturalSize.height))
case -90: videoComposition.renderSize = CGSize(width: CGFloat(clipVideoTrack.naturalSize.height), height: CGFloat(clipVideoTrack.naturalSize.width))
case 90: videoComposition.renderSize = CGSize(width: CGFloat(clipVideoTrack.naturalSize.height), height: CGFloat(clipVideoTrack.naturalSize.width))
default: videoComposition.renderSize = CGSize(width: CGFloat(clipVideoTrack.naturalSize.width), height: CGFloat(clipVideoTrack.naturalSize.height))
}

if !isIncludeAudio {
exporter.timeRange = timeRange
videoComposition.frameDuration = CMTimeMake(value: 1, timescale: Int32(frameRate!))
let instruction = AVMutableVideoCompositionInstruction()
instruction.timeRange = timeRange

//rotate
let transformer = AVMutableVideoCompositionLayerInstruction(assetTrack: clipVideoTrack)
let t1 :CGAffineTransform
switch rotation {
case 0: t1 = CGAffineTransform(translationX: 0, y: 0)
case -90: t1 = CGAffineTransform(translationX: 0, y: clipVideoTrack.naturalSize.width)
case 90: t1 = CGAffineTransform(translationX: clipVideoTrack.naturalSize.height, y: 0)
case 180: t1 = CGAffineTransform(translationX: clipVideoTrack.naturalSize.width, y: clipVideoTrack.naturalSize.height)
default: t1 = CGAffineTransform(translationX: 0, y: 0)
}

let t2: CGAffineTransform = t1.rotated(by: CGFloat(rotation!) * .pi / 180)
let finalTransform: CGAffineTransform = t2
transformer.setTransform(finalTransform, at: CMTime.zero)
instruction.layerInstructions = [transformer]
videoComposition.instructions = [instruction]

//exporter
let exporter = AVAssetExportSession.init(asset: asset, presetName: getExportPreset(quality))
exporter?.outputFileType = AVFileType.mp4
exporter?.outputURL = compressionUrl
exporter?.videoComposition = videoComposition
exporter?.shouldOptimizeForNetworkUse = true

Utility.deleteFile(compressionUrl.absoluteString)

let timer = Timer.scheduledTimer(timeInterval: 0.1, target: self, selector: #selector(self.updateProgress),
userInfo: exporter, repeats: true)

exporter.exportAsynchronously(completionHandler: {
exporter?.exportAsynchronously(completionHandler: {
timer.invalidate()
if(self.stopCommand) {
self.stopCommand = false
Expand Down
2 changes: 2 additions & 0 deletions lib/src/video_compress/video_compressor.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -127,6 +127,7 @@ extension Compress on IVideoCompress {
int? duration,
bool? includeAudio,
int frameRate = 30,
int rotation = 0,
}) async {
if (isCompressing) {
throw StateError('''VideoCompress Error:
Expand All @@ -149,6 +150,7 @@ extension Compress on IVideoCompress {
'duration': duration,
'includeAudio': includeAudio,
'frameRate': frameRate,
'rotation': rotation
});

// ignore: invalid_use_of_protected_member
Expand Down