private async Task SetTranscoder(StorageFile source, StorageFile destination, MediaEncodingProfile mediaEncodingProfile, CancellationToken cancellationToken)
{
MediaTranscoder mediaTranscoder = new MediaTranscoder();
mediaTranscoder.AlwaysReencode = true;
CancelTask(cancellationToken);
PrepareTranscodeResult prepareTranscodeResult = await mediaTranscoder.PrepareFileTranscodeAsync(source, destination, mediaEncodingProfile);
IAsyncActionWithProgress <double> progress = prepareTranscodeResult.TranscodeAsync();
progress.Progress = new AsyncActionProgressHandler <double>(async(progressInfo, info) =>
{
if (cancellationToken.IsCancellationRequested)
{
progressInfo.Cancel();
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, new DispatchedHandler(() =>
{
ReportProgress(Stage7, Stage6ProgressBar, TextProgress6, info);
if (info == 100)
{
Save.Content = "Convert/Save";
}
}));
});
CancelTask(cancellationToken);
}
//</SnippetRun>
//<SnippetTranscodeFileAsync>
private async Task TranscodeFileAsync()
{
transcoder = new MediaTranscoder();
try
{
var settings = ApplicationData.Current.LocalSettings;
settings.Values["TranscodingStatus"] = "Started";
var inputFileName = ApplicationData.Current.LocalSettings.Values["InputFileName"] as string;
var outputFileName = ApplicationData.Current.LocalSettings.Values["OutputFileName"] as string;
if (inputFileName == null || outputFileName == null)
{
return;
}
// retrieve the transcoding information
var inputFile = await Windows.Storage.StorageFile.GetFileFromPathAsync(inputFileName);
var outputFile = await Windows.Storage.StorageFile.GetFileFromPathAsync(outputFileName);
// create video encoding profile
MediaEncodingProfile encodingProfile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.HD720p);
Debug.WriteLine("PrepareFileTranscodeAsync");
settings.Values["TranscodingStatus"] = "Preparing to transcode ";
PrepareTranscodeResult preparedTranscodeResult = await transcoder.PrepareFileTranscodeAsync(
inputFile,
outputFile,
encodingProfile);
if (preparedTranscodeResult.CanTranscode)
{
var startTime = TimeSpan.FromMilliseconds(DateTime.Now.Millisecond);
Debug.WriteLine("Starting transcoding @" + startTime);
var progress = new Progress <double>(TranscodeProgress);
settings.Values["TranscodingStatus"] = "Transcoding ";
settings.Values["ProcessingFileName"] = inputFileName;
await preparedTranscodeResult.TranscodeAsync().AsTask(cancelTokenSource.Token, progress);
}
else
{
Debug.WriteLine("Source content could not be transcoded.");
Debug.WriteLine("Transcode status: " + preparedTranscodeResult.FailureReason.ToString());
var endTime = TimeSpan.FromMilliseconds(DateTime.Now.Millisecond);
Debug.WriteLine("End time = " + endTime);
}
}
catch (Exception e)
{
Debug.WriteLine("Exception type: {0}", e.ToString());
throw;
}
}
public async void PickMedia()
{
var openPicker = new Windows.Storage.Pickers.FileOpenPicker();
openPicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.VideosLibrary;
openPicker.FileTypeFilter.Add(".wmv");
openPicker.FileTypeFilter.Add(".mp4");
StorageFile source = await openPicker.PickSingleFileAsync();
var savePicker = new Windows.Storage.Pickers.FileSavePicker();
savePicker.SuggestedStartLocation =
Windows.Storage.Pickers.PickerLocationId.VideosLibrary;
savePicker.DefaultFileExtension = ".mp3";
savePicker.SuggestedFileName = "New Video";
savePicker.FileTypeChoices.Add("MPEG3", new string[] { ".mp3" });
StorageFile destination = await savePicker.PickSaveFileAsync();
MediaEncodingProfile profile =
MediaEncodingProfile.CreateMp3(AudioEncodingQuality.High);
MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult prepareOp = await
transcoder.PrepareFileTranscodeAsync(source, destination, profile);
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
transcodeOp.Progress +=
new AsyncActionProgressHandler <double>(TranscodeProgress);
transcodeOp.Completed +=
new AsyncActionWithProgressCompletedHandler <double>(TranscodeComplete);
}
else
{
switch (prepareOp.FailureReason)
{
case TranscodeFailureReason.CodecNotFound:
System.Diagnostics.Debug.WriteLine("Codec not found.");
break;
case TranscodeFailureReason.InvalidProfile:
System.Diagnostics.Debug.WriteLine("Invalid profile.");
break;
default:
System.Diagnostics.Debug.WriteLine("Unknown failure.");
break;
}
}
}
public async Task <IAsyncActionWithProgress <double> > StartTranscodeMedia(StorageFile inputFile, StorageFile outFile, MediaEncodingProfile profile)
{
MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult prepareOp = await transcoder.PrepareFileTranscodeAsync(inputFile, outFile, profile);
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
transcodeOp.Progress += new AsyncActionProgressHandler <double>((asyncInfo, e) =>
{
ProcessingProgressChanged?.Invoke(this, e);
});
transcodeOp.Completed += new AsyncActionWithProgressCompletedHandler <double>((asyncInfo, status) =>
{
asyncInfo.GetResults();
switch (status)
{
case AsyncStatus.Canceled:
ProcessingCanceled?.Invoke(this, new EventArgs());
break;
case AsyncStatus.Completed:
ProcessingCompleted?.Invoke(this, new EventArgs());
break;
case AsyncStatus.Started:
break;
case AsyncStatus.Error:
default:
ProcessingError?.Invoke(this, "转码失败");
break;
}
});
return(transcodeOp);
}
else
{
switch (prepareOp.FailureReason)
{
case TranscodeFailureReason.CodecNotFound:
ProcessingError?.Invoke(this, "转码失败:找不到编解码器");
break;
case TranscodeFailureReason.InvalidProfile:
ProcessingError?.Invoke(this, "转码失败:配置文件无效");
break;
default:
ProcessingError?.Invoke(this, "转码失败:未知错误");
break;
}
return(null);
}
}
public async Task InitStartTranscoder()
{
if (parent != null)
{
parent.StartWritingOutput("Initialize Transcoder", 1);
}
tempFile = await GetTempOutputFile();
if (parent != null)
{
parent.StartWritingOutputExtended("Temporary Output : " + tempFile.Path, 0);
}
IRandomAccessStream destStream = await tempFile.OpenAsync(FileAccessMode.ReadWrite);
int width = 320;
int height = 200;
if (gcitem != null)
{
width = gcitem.Size.Width;
height = gcitem.Size.Height;
}
frameCounter = 0;
Timestamp = TimeSpan.Zero;
VideoEncodingProperties videoSourceProperties = VideoEncodingProperties.CreateUncompressed(MediaEncodingSubtypes.Rgb32, (uint)width, (uint)height);
VideoStreamDescriptor videoSourceDescriptor = new VideoStreamDescriptor(videoSourceProperties);
MediaStreamSource mediaStreamSource = new MediaStreamSource(videoSourceDescriptor);
mediaStreamSource.BufferTime = TimeSpan.FromSeconds(0);
mediaStreamSource.Starting += OnMSSStarting;
mediaStreamSource.SampleRequested += OnMSSSampleRequested;
mediaStreamSource.SampleRendered += OnMSSSampleRendered;
//mediaStreamSource.CanSeek = false;
MediaTranscoder mediaTranscoder = new MediaTranscoder();
mediaTranscoder.HardwareAccelerationEnabled = true;
////////////////////
//Start Transcoding
MediaEncodingProfile destProfile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.HD720p);
PrepareTranscodeResult transcodeOperation = await mediaTranscoder.PrepareMediaStreamSourceTranscodeAsync(mediaStreamSource, destStream, destProfile);
//await transcode.TranscodeAsync();
var rendering = transcodeOperation.TranscodeAsync();
rendering.Progress += progressHandler;
rendering.Completed += completedHandler;
}
private async void TranscodeWithEffect()
{
var openPicker = new Windows.Storage.Pickers.FileOpenPicker();
openPicker.SuggestedStartLocation = Windows.Storage.Pickers.PickerLocationId.VideosLibrary;
openPicker.FileTypeFilter.Add(".wmv");
openPicker.FileTypeFilter.Add(".mp4");
StorageFile sourceFile = await openPicker.PickSingleFileAsync();
var savePicker = new Windows.Storage.Pickers.FileSavePicker();
savePicker.SuggestedStartLocation =
Windows.Storage.Pickers.PickerLocationId.VideosLibrary;
savePicker.DefaultFileExtension = ".mp4";
savePicker.SuggestedFileName = "New Video";
savePicker.FileTypeChoices.Add("MPEG4", new string[] { ".mp4" });
StorageFile destinationFile = await savePicker.PickSaveFileAsync();
MediaEncodingProfile mediaEncodingProfile =
MediaEncodingProfile.CreateMp4(VideoEncodingQuality.HD720p);
//<SnippetTrancodeWithEffect>
MediaTranscoder transcoder = new MediaTranscoder();
// Using the in-box video stabilization effect works
//VideoStabilizationEffectDefinition videoEffect = new VideoStabilizationEffectDefinition();
//transcoder.AddVideoEffect(videoEffect.ActivatableClassId);
// My custom effect throws an exception
var customEffectDefinition = new VideoEffectDefinition("VideoEffectComponent.ExampleVideoEffect", new PropertySet()
{
{ "FadeValue", .25 }
});
transcoder.AddVideoEffect(customEffectDefinition.ActivatableClassId);
PrepareTranscodeResult prepareOp = await
transcoder.PrepareFileTranscodeAsync(sourceFile, destinationFile, mediaEncodingProfile);
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
}
//</SnippetTrancodeWithEffect>
}
/// <summary>
/// Return true if audio can be transcoded
/// </summary>
/// <returns></returns>
public async Task <bool> ConvertAudioAsync()
{
PrepareTranscode = await this.TransCoder.PrepareFileTranscodeAsync(this.SourceAudio, this.DestinationAudio, profile);
if (PrepareTranscode.CanTranscode)
{
var transcodeOp = PrepareTranscode.TranscodeAsync();
return(true);
}
else
{
return(false);
}
}
public async Task CS_W_MT_Basic(EffectType effectType)
{
StorageFile source = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Input/Car.mp4"));
StorageFile destination = await CreateDestinationFileAync("CS_W_MT_Basic_" + effectType + ".mp4");
var definition = await Utils.CreateEffectDefinitionAsync(effectType);
var transcoder = new MediaTranscoder();
transcoder.AddVideoEffect(definition.ActivatableClassId, true, definition.Properties);
PrepareTranscodeResult transcode = await transcoder.PrepareFileTranscodeAsync(source, destination, MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Qvga));
await transcode.TranscodeAsync();
}
public async Task <StorageFile> ConvertToMP3()
{
bool SuccessFlag = true;
try
{
StorageFolder folder = await ApplicationData.Current.TemporaryFolder.CreateFolderAsync("Conversion", CreationCollisionOption.OpenIfExists);
StorageFile destinationFile = await folder.CreateFileAsync(destination, CreationCollisionOption.GenerateUniqueName);
if (SuccessFlag)
{
mediatranscoder = new MediaTranscoder();
PrepareTranscodeResult transcoderesult = await mediatranscoder.PrepareFileTranscodeAsync(file, destinationFile, isM4A?MediaEncodingProfile.CreateM4a(quality) : MediaEncodingProfile.CreateMp3(quality));
if (transcoderesult.CanTranscode)
{
canceltoken = new CancellationToken();
await transcoderesult.TranscodeAsync();
SuccessFlag = true;
}
else
{
SuccessFlag = false;
}
}
if (SuccessFlag)
{
return(destinationFile);
}
else
{
return(null);
}
}
catch (Exception ee)
{
Debug.WriteLine(ee.ToString());
}
return(null);
}
public async Task CS_W_MT_LumiaCropSquare(String inputFileName, String outputFileName)
{
StorageFile source = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Input/" + inputFileName));
StorageFile destination = await CreateDestinationFileAync(outputFileName);
// Select the largest centered square area in the input video
var encodingProfile = await TranscodingProfile.CreateFromFileAsync(source);
uint inputWidth = encodingProfile.Video.Width;
uint inputHeight = encodingProfile.Video.Height;
uint outputLength = Math.Min(inputWidth, inputHeight);
Rect cropArea = new Rect(
(float)((inputWidth - outputLength) / 2),
(float)((inputHeight - outputLength) / 2),
(float)outputLength,
(float)outputLength
);
encodingProfile.Video.Width = outputLength;
encodingProfile.Video.Height = outputLength;
var definition = new LumiaEffectDefinition(new FilterChainFactory(() =>
{
var filters = new List <IFilter>();
filters.Add(new CropFilter(cropArea));
return(filters);
}));
definition.InputWidth = inputWidth;
definition.InputHeight = inputHeight;
definition.OutputWidth = outputLength;
definition.OutputHeight = outputLength;
var transcoder = new MediaTranscoder();
transcoder.AddVideoEffect(definition.ActivatableClassId, true, definition.Properties);
PrepareTranscodeResult transcode = await transcoder.PrepareFileTranscodeAsync(source, destination, encodingProfile);
await transcode.TranscodeAsync();
}
private async void Transcode_Click(object sender, RoutedEventArgs e)
{
StartMediaTranscoder.IsEnabled = false;
StorageFile source = await StorageFile.GetFileFromApplicationUriAsync(new Uri("ms-appx:///Assets/Car.mp4"));
StorageFile destination = await KnownFolders.VideosLibrary.CreateFileAsync("VideoEffectsTestApp.MediaTranscoder.mp4", CreationCollisionOption.ReplaceExisting);
var encodingProfile = await MediaEncodingProfile.CreateFromFileAsync(source);
var definition = await CreateEffectDefinitionAsync(encodingProfile.Video);
var transcoder = new MediaTranscoder();
transcoder.AddVideoEffect(definition.ActivatableClassId, true, definition.Properties);
PrepareTranscodeResult transcode = await transcoder.PrepareFileTranscodeAsync(source, destination, MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Qvga));
await transcode.TranscodeAsync();
StartMediaTranscoder.IsEnabled = true;
}
private async void OnTransCode(object sender, RoutedEventArgs e)
{
Button btn = sender as Button;
btn.IsEnabled = false;
// 從專案目錄中取得待轉碼的MP3檔案
Uri sourceFileUri = new Uri("ms-appx:///1.mp3");
StorageFile srcFile = await StorageFile.GetFileFromApplicationUriAsync(sourceFileUri);
// 取得“音樂”檔案目錄
StorageFolder musicFd = KnownFolders.MusicLibrary;
// 新檔名
string newFileName = "new_file.m4a";
// 建立新檔案
StorageFile disFile = await musicFd.CreateFileAsync(newFileName, CreationCollisionOption.ReplaceExisting);
// 響應轉碼處理進度
IProgress <double> progress = new Progress <double>((p) =>
{
// 更新進度
this.pb.Value = p;
});
// 案例化MediaTranscoder物件
MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult result = await transcoder.PrepareFileTranscodeAsync(srcFile, disFile, MediaEncodingProfile.CreateM4a(AudioEncodingQuality.High));
// 開始轉碼
if (result.CanTranscode)
{
await result.TranscodeAsync().AsTask(progress);
}
btn.IsEnabled = true;
}
/// <summary>
/// 提供音视频转码
/// </summary>
/// <param name="SourceFile">源文件</param>
/// <param name="DestinationFile">目标文件</param>
/// <param name="MediaTranscodeEncodingProfile">转码编码</param>
/// <param name="MediaTranscodeQuality">转码质量</param>
/// <param name="SpeedUp">是否启用硬件加速</param>
/// <returns></returns>
public static Task TranscodeFromAudioOrVideoAsync(StorageFile SourceFile, StorageFile DestinationFile, string MediaTranscodeEncodingProfile, string MediaTranscodeQuality, bool SpeedUp)
{
return Task.Factory.StartNew((ob) =>
{
IsAnyTransformTaskRunning = true;
AVTranscodeCancellation = new CancellationTokenSource();
var Para = (ValueTuple<StorageFile, StorageFile, string, string, bool>)ob;
MediaTranscoder Transcoder = new MediaTranscoder
{
HardwareAccelerationEnabled = true,
VideoProcessingAlgorithm = Para.Item5 ? MediaVideoProcessingAlgorithm.Default : MediaVideoProcessingAlgorithm.MrfCrf444
};
try
{
MediaEncodingProfile Profile = null;
VideoEncodingQuality VideoQuality = default;
AudioEncodingQuality AudioQuality = default;
switch (Para.Item4)
{
case "UHD2160p":
VideoQuality = VideoEncodingQuality.Uhd2160p;
break;
case "QVGA":
VideoQuality = VideoEncodingQuality.Qvga;
break;
case "HD1080p":
VideoQuality = VideoEncodingQuality.HD1080p;
break;
case "HD720p":
VideoQuality = VideoEncodingQuality.HD720p;
break;
case "WVGA":
VideoQuality = VideoEncodingQuality.Wvga;
break;
case "VGA":
VideoQuality = VideoEncodingQuality.Vga;
break;
case "High":
AudioQuality = AudioEncodingQuality.High;
break;
case "Medium":
AudioQuality = AudioEncodingQuality.Medium;
break;
case "Low":
AudioQuality = AudioEncodingQuality.Low;
break;
}
switch (Para.Item3)
{
case "MKV":
Profile = MediaEncodingProfile.CreateHevc(VideoQuality);
break;
case "MP4":
Profile = MediaEncodingProfile.CreateMp4(VideoQuality);
break;
case "WMV":
Profile = MediaEncodingProfile.CreateWmv(VideoQuality);
break;
case "AVI":
Profile = MediaEncodingProfile.CreateAvi(VideoQuality);
break;
case "MP3":
Profile = MediaEncodingProfile.CreateMp3(AudioQuality);
break;
case "ALAC":
Profile = MediaEncodingProfile.CreateAlac(AudioQuality);
break;
case "WMA":
Profile = MediaEncodingProfile.CreateWma(AudioQuality);
break;
case "M4A":
Profile = MediaEncodingProfile.CreateM4a(AudioQuality);
break;
}
PrepareTranscodeResult Result = Transcoder.PrepareFileTranscodeAsync(Para.Item1, Para.Item2, Profile).AsTask().Result;
if (Result.CanTranscode)
{
SendUpdatableToastWithProgressForTranscode(Para.Item1, Para.Item2);
Progress<double> TranscodeProgress = new Progress<double>((CurrentValue) =>
{
NotificationData Data = new NotificationData();
Data.SequenceNumber = 0;
Data.Values["ProgressValue"] = (Math.Ceiling(CurrentValue) / 100).ToString();
Data.Values["ProgressValueString"] = Convert.ToInt32(CurrentValue) + "%";
ToastNotificationManager.CreateToastNotifier().Update(Data, "TranscodeNotification");
});
Result.TranscodeAsync().AsTask(AVTranscodeCancellation.Token, TranscodeProgress).Wait();
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = "Success";
}
else
{
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = "NotSupport";
Para.Item2.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
}
catch (AggregateException)
{
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = "Cancel";
Para.Item2.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
catch (Exception e)
{
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = e.Message;
Para.Item2.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
}, (SourceFile, DestinationFile, MediaTranscodeEncodingProfile, MediaTranscodeQuality, SpeedUp), CancellationToken.None, TaskCreationOptions.LongRunning, TaskScheduler.Current).ContinueWith((task, ob) =>
{
AVTranscodeCancellation.Dispose();
AVTranscodeCancellation = null;
var Para = (ValueTuple<StorageFile, StorageFile>)ob;
if (ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] is string ExcuteStatus)
{
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
switch (ExcuteStatus)
{
case "Success":
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Transcode_Success"), 5000);
ShowTranscodeCompleteNotification(Para.Item1, Para.Item2);
break;
case "Cancel":
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Transcode_Cancel"), 5000);
ShowTranscodeCancelNotification();
break;
case "NotSupport":
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Transcode_NotSupport"), 5000);
break;
default:
TabViewContainer.ThisPage.Notification.Show(Globalization.GetString("GeneralTransformer_Transcode_Failure") + ExcuteStatus, 5000);
break;
}
}).AsTask().Wait();
}
IsAnyTransformTaskRunning = false;
}, (SourceFile, DestinationFile), TaskScheduler.Current);
}
/// <summary>
/// Converts the chosen media to a certain extension the user has chosen for
/// </summary>
/// <param name="selectedFiles"></param>
/// <param name="output"></param>
public async void ConvertChosenMedia(List <StorageFile> selectedFiles, string output)
{
List <StorageFile> files = selectedFiles;
foreach (StorageFile file in files)
{
StorageFile source = file;
MediaEncodingProfile profile = new MediaEncodingProfile();
var ext = file.FileType;
//To which extension needs the file be converted to
switch (output)
{
case "MP3":
if (ext == ".MP3")
{
ext = null;
MessageDialog showDialogError = new MessageDialog("Het bestand kan niet naar dezelfde extensie geconverteerd worden.");
await showDialogError.ShowAsync();
}
else
{
profile = MediaEncodingProfile.CreateMp3(AudioEncodingQuality.High);
}
break;
case "MP4":
if (ext == ".MP4")
{
ext = null;
MessageDialog showDialogError = new MessageDialog("Het bestand kan niet naar dezelfde extensie geconverteerd worden.");
await showDialogError.ShowAsync();
}
else
{
profile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Auto);
}
break;
case "WAV":
if (ext == ".WAV")
{
ext = null;
MessageDialog showDialogError = new MessageDialog("Het bestand kan niet naar dezelfde extensie geconverteerd worden.");
await showDialogError.ShowAsync();
}
profile = MediaEncodingProfile.CreateWav(AudioEncodingQuality.High);
break;
default:
output = null;
MessageDialog showDialogUnknown = new MessageDialog("Gekozen formaat om naar te converten is niet geldig.");
await showDialogUnknown.ShowAsync();
break;
}
//Puts the file in the "Video's" folder
if (output != null && ext != null)
{
var folder = KnownFolders.VideosLibrary;
string datetime = "_" + DateTime.Now.Day + DateTime.Now.Month + DateTime.Now.Year + DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second;
var destination = await folder.CreateFileAsync(source.Name.Remove(source.Name.Length - 4) + datetime + "." + output);
MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult prepareOp = null;
while (source.Equals(null) || destination.Equals(null) || profile.Equals(null))
{
//waiting
}
using (await bouncer.LockAsync())
{
//catch the nullreference exception on prepareOp
try
{
prepareOp = await transcoder.PrepareFileTranscodeAsync(source, destination, profile);
//if possible
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
transcodeOp.Completed +=
new AsyncActionWithProgressCompletedHandler <double>(TranscodeComplete);
}
else
{
switch (prepareOp.FailureReason)
{
case TranscodeFailureReason.CodecNotFound:
Debug.WriteLine("Codec not found.");
break;
case TranscodeFailureReason.InvalidProfile:
Debug.WriteLine("Invalid profile.");
break;
default:
Debug.WriteLine("Unknown failure.");
break;
}
}
}
catch (NullReferenceException ex) { Debug.WriteLine(ex.Message); }
}
}
}
}
public async void ConvertChosenMedia(List <StorageFile> selectedFiles, string output)
{
List <StorageFile> files = selectedFiles;
foreach (StorageFile file in files)
{
StorageFile source = file;
MediaEncodingProfile profile = new MediaEncodingProfile();
//wat wil de gebruiker er mee
switch (output)
{
case "MP3":
profile = MediaEncodingProfile.CreateMp3(AudioEncodingQuality.High);
break;
case "MP4":
profile = MediaEncodingProfile.CreateMp4(VideoEncodingQuality.Auto);
break;
case "WAV":
profile = MediaEncodingProfile.CreateWav(AudioEncodingQuality.High);
break;
default:
Debug.WriteLine("Gekozen formaat om naar te converten staat niet in de switchlijst");
break;
}
//bepaald waar het nieuwe bestand komt
var folder = KnownFolders.VideosLibrary;
string datetime = "_" + DateTime.Now.Day + DateTime.Now.Month + DateTime.Now.Year + DateTime.Now.Hour + DateTime.Now.Minute + DateTime.Now.Second;
var destination = await folder.CreateFileAsync(source.Name.Remove(source.Name.Length - 4) + datetime + "." + output);
MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult prepareOp = null;
while (source.Equals(null) || destination.Equals(null) || profile.Equals(null))
{
//blijf wachten
}
using (await bouncer.LockAsync())
{
//afvangen dat prepareOp nullreferenceexception gooit
try
{
prepareOp = await transcoder.PrepareFileTranscodeAsync(source, destination, profile);
//als het kan
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
transcodeOp.Progress +=
new AsyncActionProgressHandler <double>(TranscodeProgress);
transcodeOp.Completed +=
new AsyncActionWithProgressCompletedHandler <double>(TranscodeComplete);
}
else
{
switch (prepareOp.FailureReason)
{
case TranscodeFailureReason.CodecNotFound:
Debug.WriteLine("Codec not found.");
break;
case TranscodeFailureReason.InvalidProfile:
Debug.WriteLine("Invalid profile.");
break;
default:
Debug.WriteLine("Unknown failure.");
break;
}
}
}
catch (NullReferenceException ex) { Debug.WriteLine(ex.Message); }
}
}//foreach
}
/// <summary>
/// 提供音视频转码
/// </summary>
/// <param name="SourceFile">源文件</param>
/// <param name="DestinationFile">目标文件</param>
/// <param name="MediaTranscodeEncodingProfile">转码编码</param>
/// <param name="MediaTranscodeQuality">转码质量</param>
/// <param name="SpeedUp">是否启用硬件加速</param>
/// <returns></returns>
public static Task TranscodeFromAudioOrVideoAsync(StorageFile SourceFile, StorageFile DestinationFile, string MediaTranscodeEncodingProfile, string MediaTranscodeQuality, bool SpeedUp)
{
return(Task.Factory.StartNew((obj) =>
{
if (obj is ValueTuple <StorageFile, StorageFile, string, string, bool> Para)
{
using (ExtendedExecutionController ExtExecution = ExtendedExecutionController.TryCreateExtendedExecution().Result)
{
IsAnyTransformTaskRunning = true;
AVTranscodeCancellation = new CancellationTokenSource();
MediaTranscoder Transcoder = new MediaTranscoder
{
HardwareAccelerationEnabled = true,
VideoProcessingAlgorithm = Para.Item5 ? MediaVideoProcessingAlgorithm.Default : MediaVideoProcessingAlgorithm.MrfCrf444
};
try
{
MediaEncodingProfile Profile = null;
VideoEncodingQuality VideoQuality = default;
AudioEncodingQuality AudioQuality = default;
switch (Para.Item4)
{
case "UHD2160p":
VideoQuality = VideoEncodingQuality.Uhd2160p;
break;
case "QVGA":
VideoQuality = VideoEncodingQuality.Qvga;
break;
case "HD1080p":
VideoQuality = VideoEncodingQuality.HD1080p;
break;
case "HD720p":
VideoQuality = VideoEncodingQuality.HD720p;
break;
case "WVGA":
VideoQuality = VideoEncodingQuality.Wvga;
break;
case "VGA":
VideoQuality = VideoEncodingQuality.Vga;
break;
case "High":
AudioQuality = AudioEncodingQuality.High;
break;
case "Medium":
AudioQuality = AudioEncodingQuality.Medium;
break;
case "Low":
AudioQuality = AudioEncodingQuality.Low;
break;
}
switch (Para.Item3)
{
case "MKV":
Profile = MediaEncodingProfile.CreateHevc(VideoQuality);
break;
case "MP4":
Profile = MediaEncodingProfile.CreateMp4(VideoQuality);
break;
case "WMV":
Profile = MediaEncodingProfile.CreateWmv(VideoQuality);
break;
case "AVI":
Profile = MediaEncodingProfile.CreateAvi(VideoQuality);
break;
case "MP3":
Profile = MediaEncodingProfile.CreateMp3(AudioQuality);
break;
case "ALAC":
Profile = MediaEncodingProfile.CreateAlac(AudioQuality);
break;
case "WMA":
Profile = MediaEncodingProfile.CreateWma(AudioQuality);
break;
case "M4A":
Profile = MediaEncodingProfile.CreateM4a(AudioQuality);
break;
}
PrepareTranscodeResult Result = Transcoder.PrepareFileTranscodeAsync(Para.Item1, Para.Item2, Profile).AsTask().Result;
if (Result.CanTranscode)
{
SendUpdatableToastWithProgressForTranscode(Para.Item1, Para.Item2);
Progress <double> TranscodeProgress = new Progress <double>((CurrentValue) =>
{
try
{
NotificationData Data = new NotificationData
{
SequenceNumber = 0
};
Data.Values["ProgressValue"] = (Math.Ceiling(CurrentValue) / 100).ToString();
Data.Values["ProgressValueString"] = Convert.ToInt32(CurrentValue) + "%";
ToastNotificationManager.CreateToastNotifier().Update(Data, "TranscodeNotification");
}
catch (Exception ex)
{
LogTracer.Log(ex, "Toast notification could not be sent");
}
});
Result.TranscodeAsync().AsTask(AVTranscodeCancellation.Token, TranscodeProgress).Wait();
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ShowTranscodeCompleteNotification(Para.Item1, Para.Item2);
}).AsTask().Wait();
}
else
{
LogTracer.Log("Transcode format is not supported");
Para.Item2.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
}
catch (AggregateException)
{
Para.Item2.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
catch (Exception ex)
{
LogTracer.Log(ex, "Transcode failed");
Para.Item2.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
finally
{
AVTranscodeCancellation.Dispose();
AVTranscodeCancellation = null;
IsAnyTransformTaskRunning = false;
}
}
}
}, (SourceFile, DestinationFile, MediaTranscodeEncodingProfile, MediaTranscodeQuality, SpeedUp), TaskCreationOptions.LongRunning));
}
private async void Button_Click_1(object sender, RoutedEventArgs e)
{
//MediaEncodingProfile profile = new MediaEncodingProfile();
//profile.Video = property;
//profile.Video.Subtype = MediaEncodingSubtypes.H264;
//profile.Video.Height = Source_height;
//profile.Video.Width = Source_width;
//profile.Video.FrameRate.Numerator = Source_frameRate;
//profile.Audio.Subtype = MediaEncodingSubtypes.Aac;
//profile.Audio.SampleRate = SampleRate;
MediaEncodingProfile profile = await MediaEncodingProfile.CreateFromFileAsync(source);
profile.Video.Subtype = MediaEncodingSubtypes.H264;
profile.Video.Height = Source_height;
profile.Video.Width = Source_width;
profile.Video.FrameRate.Numerator = Source_frameRate;
profile.Audio.SampleRate = SampleRate;
profile.Audio.Subtype = MediaEncodingSubtypes.Aac;
MediaTranscoder transcoder = new MediaTranscoder();
//MediaEncodingProfile profile = new MediaEncodingProfile();
//profile.Video.Subtype = MediaEncodingSubtypes.H264;
//profile.Video.Height = Source_height;
//profile.Video.Width = Source_width;
//profile.Video.FrameRate.Numerator = Source_frameRate;
//profile.Video.Bitrate = property.Bitrate;
//profile.Audio.SampleRate = SampleRate;
//profile.Audio.Subtype = MediaEncodingSubtypes.Aac;
//MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult prepareOp = await
transcoder.PrepareFileTranscodeAsync(source, destination, profile);
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
transcodeOp.Progress +=
new AsyncActionProgressHandler <double>(TranscodeProgress);
transcodeOp.Completed +=
new AsyncActionWithProgressCompletedHandler <double>(TranscodeComplete);
}
else
{
switch (prepareOp.FailureReason)
{
case TranscodeFailureReason.CodecNotFound:
System.Diagnostics.Debug.WriteLine("Codec not found.");
break;
case TranscodeFailureReason.InvalidProfile:
System.Diagnostics.Debug.WriteLine("Invalid profile.");
break;
default:
System.Diagnostics.Debug.WriteLine("Unknown failure.");
break;
}
}
}
private async Task TranscodeMediaAsync()
{
MediaVideoProcessingAlgorithm Algorithm = default;
if (ApplicationData.Current.LocalSettings.Values["MediaTranscodeAlgorithm"] is string TranscodeAlgorithm)
{
if (TranscodeAlgorithm == "MrfCrf444")
{
Algorithm = MediaVideoProcessingAlgorithm.MrfCrf444;
}
else if (TranscodeAlgorithm == "Default")
{
Algorithm = MediaVideoProcessingAlgorithm.Default;
}
MediaTranscoder Transcoder = new MediaTranscoder
{
HardwareAccelerationEnabled = true,
VideoProcessingAlgorithm = Algorithm
};
if (ApplicationData.Current.LocalSettings.Values["MediaTranscodeInputFileToken"] is string InputFileToken &&
ApplicationData.Current.LocalSettings.Values["MediaTranscodeOutputFileToken"] is string OutputFileToken)
{
try
{
var FutureItemAccessList = StorageApplicationPermissions.FutureAccessList;
InputFile = await FutureItemAccessList.GetFileAsync(InputFileToken);
OutputFile = await FutureItemAccessList.GetFileAsync(OutputFileToken);
if (ApplicationData.Current.LocalSettings.Values["MediaTranscodeEncodingProfile"] is string EncodingKind &&
ApplicationData.Current.LocalSettings.Values["MediaTranscodeQuality"] is string Quality)
{
MediaEncodingProfile Profile = null;
VideoEncodingQuality VideoQuality = default;
AudioEncodingQuality AudioQuality = default;
switch (Quality)
{
case "UHD2160p":
VideoQuality = VideoEncodingQuality.Uhd2160p;
break;
case "QVGA":
VideoQuality = VideoEncodingQuality.Qvga;
break;
case "HD1080p":
VideoQuality = VideoEncodingQuality.HD1080p;
break;
case "HD720p":
VideoQuality = VideoEncodingQuality.HD720p;
break;
case "WVGA":
VideoQuality = VideoEncodingQuality.Wvga;
break;
case "VGA":
VideoQuality = VideoEncodingQuality.Vga;
break;
case "High":
AudioQuality = AudioEncodingQuality.High;
break;
case "Medium":
AudioQuality = AudioEncodingQuality.Medium;
break;
case "Low":
AudioQuality = AudioEncodingQuality.Low;
break;
}
switch (EncodingKind)
{
case "MKV":
Profile = MediaEncodingProfile.CreateHevc(VideoQuality);
break;
case "MP4":
Profile = MediaEncodingProfile.CreateMp4(VideoQuality);
break;
case "WMV":
Profile = MediaEncodingProfile.CreateWmv(VideoQuality);
break;
case "AVI":
Profile = MediaEncodingProfile.CreateAvi(VideoQuality);
break;
case "MP3":
Profile = MediaEncodingProfile.CreateMp3(AudioQuality);
break;
case "ALAC":
Profile = MediaEncodingProfile.CreateAlac(AudioQuality);
break;
case "WMA":
Profile = MediaEncodingProfile.CreateWma(AudioQuality);
break;
case "M4A":
Profile = MediaEncodingProfile.CreateM4a(AudioQuality);
break;
}
PrepareTranscodeResult Result = await Transcoder.PrepareFileTranscodeAsync(InputFile, OutputFile, Profile);
if (Result.CanTranscode)
{
SendUpdatableToastWithProgress();
Progress <double> TranscodeProgress = new Progress <double>(ProgressHandler);
await Result.TranscodeAsync().AsTask(Cancellation.Token, TranscodeProgress);
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = "Success";
}
else
{
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = "转码格式不支持";
await OutputFile.DeleteAsync(StorageDeleteOption.PermanentDelete);
}
}
else
{
ApplicationData.Current.LocalSettings.Values["MediaTranscodeStatus"] = "SettingError: Miss MediaTranscodeEncodingProfile Or MediaTranscodeQuality";
await OutputFile.DeleteAsync(StorageDeleteOption.PermanentDelete);
}
}
private async Task Covert_music(string audio, string type)
{
using (SQLiteConnection db = new SQLiteConnection(App.DB_PATH))
{
MediaEncodingProfile profile = new MediaEncodingProfile();
if (type == ".mp3")
{
var Quality = Load_options(Json.Json_mp3);
profile = MediaEncodingProfile.CreateMp3(Quality);
}
else if (type == ".alac")
{
var Quality = Load_options(Json.Json_alac);
profile = MediaEncodingProfile.CreateAlac(Quality);
type = ".m4a";
}
else if (type == ".flac")
{
var Quality = Load_options(Json.Json_flac);
profile = MediaEncodingProfile.CreateFlac(Quality);
}
else if (type == ".aac")
{
var Quality = Load_options(Json.Json_aac);
profile = MediaEncodingProfile.CreateM4a(Quality);
type = ".m4a";
}
convert_type = type.Substring(1);
var songs = db.Query <Song>("Select * from Song");
foreach (var song in songs)
{
var format = db.Find <MusicFormat>(c => c.Id == song.FormatId);
var import_name = song.Path + song.NameSong + "." + format.NameFormat;
string new_name = song.Path + song.NameSong + type;
Main_folder = await Windows.Storage.AccessCache.StorageApplicationPermissions
.FutureAccessList.GetFolderAsync("Audio");
StorageFile oldfile = await Main_folder.GetFileAsync(import_name);
MusicProperties musicProperties = await oldfile.Properties.GetMusicPropertiesAsync();
if (oldfile.FileType != ".mp3" && oldfile.FileType != type &&
musicProperties.Bitrate > 500000)
{
StorageFile newfile = await Main_folder.CreateFileAsync(new_name, CreationCollisionOption.ReplaceExisting);
if (oldfile != null && newfile != null)
{
try
{
current_song = song;
all_convert_song++;
SongDeleteAfterConvert.Add(current_song);
MediaTranscoder transcoder = new MediaTranscoder();
PrepareTranscodeResult prepareOp = await transcoder.PrepareFileTranscodeAsync(oldfile, newfile, profile);
if (prepareOp.CanTranscode)
{
var transcodeOp = prepareOp.TranscodeAsync();
transcodeOp.Completed += async(IAsyncActionWithProgress <double> asyncInfo, AsyncStatus status) =>
{
asyncInfo.GetResults();
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
current_convert_song++;
});
};
}
}
catch (Exception exc)
{
var dialog = new MessageDialog(exc.ToString());
await dialog.ShowAsync();
}
}
}
}
do
{
await Task.Delay(TimeSpan.FromSeconds(3));
}while (all_convert_song != current_convert_song);
Delete_oldfile();
}
}
