MateuszSkoczek/VDownload
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Video adding and subscriptions finished

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This commit is contained in:
Mateusz Skoczek
2022-05-11 20:50:50 +02:00
Unverified
parent 7a57fb65f3
commit 7acaeb24de
92 changed files with 3917 additions and 3314 deletions
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59
VDownload.Core/Services/MediaProcessor.cs
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@@ -3,6 +3,7 @@ using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using VDownload.Core.Enums;
using VDownload.Core.Structs;
using Windows.Foundation;
using Windows.Media.Editing;
using Windows.Media.MediaProperties;
@@ -14,105 +15,83 @@ namespace VDownload.Core.Services
{
public class MediaProcessor
{
#region STANDARD METHODS
#region PUBLIC METHODS
// SINGLE AUDIO & VIDEO FILE PROCESSING
public async Task Run(StorageFile mediaFile, MediaFileExtension extension, MediaType mediaType, StorageFile outputFile, TimeSpan? trimStart = null, TimeSpan? trimEnd = null, CancellationToken cancellationToken = default)
public async Task Run(StorageFile mediaFile, MediaFileExtension extension, MediaType mediaType, StorageFile outputFile, TrimData trim, CancellationToken cancellationToken = default)
{
// Invoke event at start
cancellationToken.ThrowIfCancellationRequested();
ProgressChanged(this, new EventArgs.ProgressChangedEventArgs(0));
// Init transcoder
MediaTranscoder mediaTranscoder = new MediaTranscoder
{
HardwareAccelerationEnabled = (bool)Config.GetValue("media_transcoding_use_hardware_acceleration"),
VideoProcessingAlgorithm = (MediaVideoProcessingAlgorithm)Config.GetValue("media_transcoding_algorithm"),
};
if (trimStart != null) mediaTranscoder.TrimStartTime = (TimeSpan)trimStart;
if (trimEnd != null) mediaTranscoder.TrimStopTime = (TimeSpan)trimEnd;
if (trim.Start != null) mediaTranscoder.TrimStartTime = trim.Start;
if (trim.End != null) mediaTranscoder.TrimStopTime = trim.End;
// Start transcoding operation
using (IRandomAccessStream openedOutputFile = await outputFile.OpenAsync(FileAccessMode.ReadWrite))
{
// Prepare transcode task
PrepareTranscodeResult transcodingPreparated = await mediaTranscoder.PrepareStreamTranscodeAsync(await mediaFile.OpenAsync(FileAccessMode.Read), openedOutputFile, await GetMediaEncodingProfile(mediaFile, extension, mediaType));
// Start transcoding
IAsyncActionWithProgress<double> transcodingTask = transcodingPreparated.TranscodeAsync();
await transcodingTask.AsTask(cancellationToken, new Progress<double>((percent) => { ProgressChanged(this, new EventArgs.ProgressChangedEventArgs(percent)); }));
cancellationToken.ThrowIfCancellationRequested();
// Finalizing
await openedOutputFile.FlushAsync();
transcodingTask.Close();
}
// Invoke event at end
ProgressChanged(this, new EventArgs.ProgressChangedEventArgs(100, true));
}
// SEPARATE AUDIO & VIDEO FILES PROCESSING
public async Task Run(StorageFile audioFile, StorageFile videoFile, VideoFileExtension extension, StorageFile outputFile, TimeSpan? trimStart = null, TimeSpan? trimEnd = null, CancellationToken cancellationToken = default)
public async Task Run(StorageFile audioFile, StorageFile videoFile, VideoFileExtension extension, StorageFile outputFile, TrimData trim, CancellationToken cancellationToken = default)
{
// Invoke event at start
cancellationToken.ThrowIfCancellationRequested();
ProgressChanged(this, new EventArgs.ProgressChangedEventArgs(0));
// Init editor
MediaComposition mediaEditor = new MediaComposition();
// Add media files
cancellationToken.ThrowIfCancellationRequested();
Task<MediaClip> getVideoFileTask = MediaClip.CreateFromFileAsync(videoFile).AsTask();
Task<BackgroundAudioTrack> getAudioFileTask = BackgroundAudioTrack.CreateFromFileAsync(audioFile).AsTask();
await Task.WhenAll(getVideoFileTask, getAudioFileTask);
MediaClip videoElement = getVideoFileTask.Result;
if (trimStart != null) videoElement.TrimTimeFromStart = (TimeSpan)trimStart;
if (trimEnd != null) videoElement.TrimTimeFromEnd = (TimeSpan)trimEnd;
if (trim.Start != null) videoElement.TrimTimeFromStart = trim.Start;
if (trim.End != null) videoElement.TrimTimeFromEnd = trim.End;
BackgroundAudioTrack audioElement = getAudioFileTask.Result;
if (trimStart != null) audioElement.TrimTimeFromStart = (TimeSpan)trimStart;
if (trimEnd != null) audioElement.TrimTimeFromEnd = (TimeSpan)trimEnd;
if (trim.Start != null) audioElement.TrimTimeFromStart = trim.Start;
if (trim.End != null) audioElement.TrimTimeFromEnd = trim.End;
mediaEditor.Clips.Add(videoElement);
mediaEditor.BackgroundAudioTracks.Add(audioElement);
// Start rendering operation
var renderOperation = mediaEditor.RenderToFileAsync(outputFile, (MediaTrimmingPreference)Config.GetValue("media_editing_algorithm"), await GetMediaEncodingProfile(videoFile, audioFile, (MediaFileExtension)extension, MediaType.AudioVideo));
renderOperation.Progress += (info, progress) => { ProgressChanged(this, new EventArgs.ProgressChangedEventArgs(progress)); };
cancellationToken.ThrowIfCancellationRequested();
await renderOperation.AsTask(cancellationToken);
// Invoke event at end
ProgressChanged(this, new EventArgs.ProgressChangedEventArgs(100, true));
}
// AUDIO FILE PROCESSING
public async Task Run(StorageFile audioFile, AudioFileExtension extension, StorageFile outputFile, TimeSpan? trimStart = null, TimeSpan? trimEnd = null, CancellationToken cancellationToken = default)
public async Task Run(StorageFile audioFile, AudioFileExtension extension, StorageFile outputFile, TrimData trim, CancellationToken cancellationToken = default)
{
await Run(audioFile, (MediaFileExtension)extension, MediaType.OnlyAudio, outputFile, trimStart, trimEnd, cancellationToken);
await Run(audioFile, (MediaFileExtension)extension, MediaType.OnlyAudio, outputFile, trim, cancellationToken);
}
// VIDEO FILE PROCESSING
public async Task Run(StorageFile videoFile, VideoFileExtension extension, StorageFile outputFile, TimeSpan? trimStart = null, TimeSpan? trimEnd = null, CancellationToken cancellationToken = default)
public async Task Run(StorageFile videoFile, VideoFileExtension extension, StorageFile outputFile, TrimData trim, CancellationToken cancellationToken = default)
{
await Run(videoFile, (MediaFileExtension)extension, MediaType.OnlyVideo, outputFile, trimStart, trimEnd, cancellationToken);
await Run(videoFile, (MediaFileExtension)extension, MediaType.OnlyVideo, outputFile, trim, cancellationToken);
}
#endregion
#region LOCAL METHODS
#region PRIVATE METHODS
// GET ENCODING PROFILE
private static async Task<MediaEncodingProfile> GetMediaEncodingProfile(StorageFile videoFile, StorageFile audioFile, MediaFileExtension extension, MediaType mediaType)
{
// Create profile object
MediaEncodingProfile profile;
// Set extension
switch (extension)
{
default:
@@ -127,7 +106,6 @@ namespace VDownload.Core.Services
case MediaFileExtension.WMA: profile = MediaEncodingProfile.CreateWma(AudioEncodingQuality.High); break;
}
// Set video parameters
if (mediaType != MediaType.OnlyAudio)
{
var videoData = await videoFile.Properties.GetVideoPropertiesAsync();
@@ -135,16 +113,12 @@ namespace VDownload.Core.Services
profile.Video.Width = videoData.Width;
profile.Video.Bitrate = videoData.Bitrate;
}
// Set audio parameters
if (mediaType != MediaType.OnlyVideo)
{
var audioData = await audioFile.Properties.GetMusicPropertiesAsync();
profile.Audio.Bitrate = audioData.Bitrate;
if (mediaType == MediaType.AudioVideo) profile.Video.Bitrate -= audioData.Bitrate;
}
// Delete audio tracks
if (mediaType == MediaType.OnlyVideo)
{
var audioTracks = profile.GetAudioTracks();
@@ -152,7 +126,6 @@ namespace VDownload.Core.Services
profile.SetAudioTracks(audioTracks.AsEnumerable());
}
// Return profile
return profile;
}
private static async Task<MediaEncodingProfile> GetMediaEncodingProfile(StorageFile audioVideoFile, MediaFileExtension extension, MediaType mediaType)
@@ -164,7 +137,7 @@ namespace VDownload.Core.Services
#region EVENT HANDLERS
#region EVENTS
public event EventHandler<EventArgs.ProgressChangedEventArgs> ProgressChanged;