/// <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));
}
/// <summary>
/// 将指定的视频文件合并并产生新文件
/// </summary>
/// <param name="DestinationFile">新文件</param>
/// <param name="Composition">片段</param>
/// <param name="EncodingProfile">编码</param>
/// <returns></returns>
public static Task GenerateMergeVideoFromOriginAsync(StorageFile DestinationFile, MediaComposition Composition, MediaEncodingProfile EncodingProfile)
{
return(Task.Factory.StartNew((obj) =>
{
if (obj is ValueTuple <StorageFile, MediaComposition, MediaEncodingProfile> Para)
{
IsAnyTransformTaskRunning = true;
using (ExtendedExecutionController ExtExecution = ExtendedExecutionController.TryCreateExtendedExecution().Result)
{
AVTranscodeCancellation = new CancellationTokenSource();
SendUpdatableToastWithProgressForMergeVideo();
Progress <double> CropVideoProgress = new Progress <double>((CurrentValue) =>
{
try
{
string Tag = "MergeVideoNotification";
NotificationData data = new NotificationData
{
SequenceNumber = 0
};
data.Values["ProgressValue"] = Math.Round(CurrentValue / 100, 2, MidpointRounding.AwayFromZero).ToString();
data.Values["ProgressValueString"] = Convert.ToInt32(CurrentValue) + "%";
ToastNotificationManager.CreateToastNotifier().Update(data, Tag);
}
catch (Exception ex)
{
LogTracer.Log(ex, "Toast notification could not be sent");
}
});
try
{
Para.Item2.RenderToFileAsync(Para.Item1, MediaTrimmingPreference.Precise, Para.Item3).AsTask(AVTranscodeCancellation.Token, CropVideoProgress).Wait();
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ShowMergeCompleteNotification();
}).AsTask().Wait();
}
catch (AggregateException)
{
CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
ShowMergeCancelNotification();
}).AsTask().Wait();
Para.Item1.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
}
catch (Exception)
{
Para.Item1.DeleteAsync(StorageDeleteOption.PermanentDelete).AsTask().Wait();
LogTracer.Log("Merge video failed");
}
finally
{
AVTranscodeCancellation?.Dispose();
AVTranscodeCancellation = null;
IsAnyTransformTaskRunning = false;
}
}
}
}, (DestinationFile, Composition, EncodingProfile), TaskCreationOptions.LongRunning));
}
/// <summary>
/// 提供图片转码
/// </summary>
/// <param name="SourceFile">源文件</param>
/// <param name="DestinationFile">目标文件</param>
/// <param name="IsEnableScale">是否启用缩放</param>
/// <param name="ScaleWidth">缩放宽度</param>
/// <param name="ScaleHeight">缩放高度</param>
/// <param name="InterpolationMode">插值模式</param>
/// <returns></returns>
public static async Task TranscodeFromImageAsync(FileSystemStorageFile SourceFile, FileSystemStorageFile DestinationFile, bool IsEnableScale = false, uint ScaleWidth = default, uint ScaleHeight = default, BitmapInterpolationMode InterpolationMode = default)
{
try
{
IsAnyTransformTaskRunning = true;
using (ExtendedExecutionController ExtExecution = await ExtendedExecutionController.TryCreateExtendedExecution())
using (IRandomAccessStream OriginStream = await SourceFile.GetRandomAccessStreamFromFileAsync(FileAccessMode.Read).ConfigureAwait(false))
{
try
{
BitmapDecoder Decoder = await BitmapDecoder.CreateAsync(OriginStream);
using (SoftwareBitmap TranscodeImage = await Decoder.GetSoftwareBitmapAsync())
using (IRandomAccessStream TargetStream = await DestinationFile.GetRandomAccessStreamFromFileAsync(FileAccessMode.ReadWrite).ConfigureAwait(false))
{
BitmapEncoder Encoder = DestinationFile.Type.ToLower() switch
{
".png" => await BitmapEncoder.CreateAsync(BitmapEncoder.PngEncoderId, TargetStream),
".jpg" => await BitmapEncoder.CreateAsync(BitmapEncoder.JpegEncoderId, TargetStream),
".bmp" => await BitmapEncoder.CreateAsync(BitmapEncoder.BmpEncoderId, TargetStream),
".heic" => await BitmapEncoder.CreateAsync(BitmapEncoder.HeifEncoderId, TargetStream),
".tiff" => await BitmapEncoder.CreateAsync(BitmapEncoder.TiffEncoderId, TargetStream),
_ => throw new InvalidOperationException("Unsupport image format"),
};
if (IsEnableScale)
{
Encoder.BitmapTransform.ScaledWidth = ScaleWidth;
Encoder.BitmapTransform.ScaledHeight = ScaleHeight;
Encoder.BitmapTransform.InterpolationMode = InterpolationMode;
}
Encoder.SetSoftwareBitmap(TranscodeImage);
await Encoder.FlushAsync();
}
}
catch (Exception)
{
await DestinationFile.DeleteAsync(true);
await CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, async() =>
{
QueueContentDialog dialog = new QueueContentDialog
{
Title = Globalization.GetString("Common_Dialog_ErrorTitle"),
Content = Globalization.GetString("EnDecode_Dialog_Content"),
CloseButtonText = Globalization.GetString("Common_Dialog_CloseButton")
};
_ = await dialog.ShowAsync();
});
}
}
}
catch (Exception ex)
{
LogTracer.Log(ex);
}
finally
{
IsAnyTransformTaskRunning = false;
}
}
