MateuszSkoczek/VDownload
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1.0-dev2-feature1 (Twitch Clips downloading added)

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Mateusz Skoczek
2021-12-19 16:39:57 +01:00
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parent 685f246306
commit 1574e954ab
4 changed files with 209 additions and 0 deletions
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1
.gitignore vendored
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@@ -98,6 +98,7 @@ StyleCopReport.xml
*.pidb
*.svclog
*.scc
.editorconfig
# Chutzpah Test files
_Chutzpah*

196
VDownload/Sources/Twitch/Clip.cs Normal file
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@@ -0,0 +1,196 @@
// External
using Newtonsoft.Json.Linq;
// System
using System;
using System.Collections.Generic;
using System.Net;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Web;
using VDownload.Services;
using Windows.ApplicationModel.Resources;
using Windows.Storage;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media.Imaging;
namespace VDownload.Sources.Twitch
{
internal class Clip
{
#region INIT
// ID
private string ID { get; set; }
// CONSTRUCTOR
public Clip(string id)
{
ID = id;
}
#endregion
#region MAIN
// GET METADATA
public async Task<Dictionary<string, object>> GetMetadata()
{
// Client settings
WebClient Client = new WebClient();
Client.Headers.Add("Accept", "application/vnd.twitchtv.v5+json");
Client.Headers.Add("Client-ID", "v8kfhyc2980it9e7t5hhc7baukzuj2");
// Get metadata
Uri requestUrl = new Uri($"https://api.twitch.tv/kraken/clips/{ID}");
JObject response = JObject.Parse(await Client.DownloadStringTaskAsync(requestUrl));
// Pack data into dictionary
Dictionary<string, object> metadata = new Dictionary<string, object>
{
["title"] = response["title"].ToString().Replace("\n", ""),
["author"] = response["broadcaster"]["display_name"].ToString(),
["date"] = Convert.ToDateTime(response["created_at"].ToString()),
["duration"] = TimeSpan.FromSeconds(Math.Ceiling(double.Parse(response["duration"].ToString()))),
["views"] = long.Parse(response["views"].ToString()),
["url"] = new Uri(response["url"].ToString()),
["thumbnail"] = new Uri(response["thumbnails"]["medium"].ToString()),
};
// Return metadata
return metadata;
}
// GET STREAMS
public async Task<Dictionary<string, Uri>> GetStreams()
{
// Client settings
WebClient Client = new WebClient();
Client.Headers.Add("Client-ID", "kimne78kx3ncx6brgo4mv6wki5h1ko");
Client.Encoding = Encoding.UTF8;
// Get streams
var response = JArray.Parse(await Client.UploadStringTaskAsync(new Uri("https://gql.twitch.tv/gql", UriKind.Absolute), "[{\"operationName\":\"VideoAccessToken_Clip\",\"variables\":{\"slug\":\"" + ID + "\"},\"extensions\":{\"persistedQuery\":{\"version\":1,\"sha256Hash\":\"36b89d2507fce29e5ca551df756d27c1cfe079e2609642b4390aa4c35796eb11\"}}}]"));
// Pack data into dictioanry
Dictionary<string, Uri> streams = new Dictionary<string, Uri>();
foreach (var s in response[0]["data"]["clip"]["videoQualities"])
{
string key = $"{s["quality"]}p{s["frameRate"]}";
Uri value = new Uri(s["sourceURL"].ToString());
streams[key] = value;
}
// Return streams
return streams;
}
// DOWNLOAD VIDEO
private TextBlock ProgressLabelTextblock;
private ProgressBar ProgressBar;
private Image ProgressIcon;
public async Task<StorageFile> Download(StorageFolder tempFolder, string quality, string extension, string mediaType, TimeSpan trimStart, TimeSpan trimEnd, TimeSpan duration, CancellationTokenSource token, TextBlock progressLabelTextblock, ProgressBar progressBar, Image progressIcon)
{
// Set variables
ProgressLabelTextblock = progressLabelTextblock;
ProgressBar = progressBar;
ProgressIcon = progressIcon;
// Set progress to downloading
if (!token.Token.IsCancellationRequested)
{
ProgressLabelTextblock.Text = $"{ResourceLoader.GetForCurrentView().GetString("VideoPanelProgressLabelDownloading")} (0%)";
ProgressBar.IsIndeterminate = false;
ProgressBar.Visibility = Visibility.Visible;
ProgressBar.Value = 0;
ProgressIcon.Source = new BitmapImage { UriSource = new Uri($"ms-appx:///Assets/Icons/Universal/{(Application.Current.RequestedTheme == ApplicationTheme.Dark ? "Dark" : "Light")}/Downloading.png") };
}
// Download
StorageFile rawFile = null;
if (!token.Token.IsCancellationRequested)
{
try
{
rawFile = await tempFolder.CreateFileAsync("raw.mp4");
if (!token.Token.IsCancellationRequested)
{
// Access token client settings
WebClient Client = new WebClient();
Client.Headers.Add("Client-ID", "kimne78kx3ncx6brgo4mv6wki5h1ko");
Client.Encoding = Encoding.UTF8;
// Get access token
var response = JArray.Parse(await Client.UploadStringTaskAsync(new Uri("https://gql.twitch.tv/gql", UriKind.Absolute), "[{\"operationName\":\"VideoAccessToken_Clip\",\"variables\":{\"slug\":\"" + ID + "\"},\"extensions\":{\"persistedQuery\":{\"version\":1,\"sha256Hash\":\"36b89d2507fce29e5ca551df756d27c1cfe079e2609642b4390aa4c35796eb11\"}}}]"));
string tokenVal = response[0]["data"]["clip"]["playbackAccessToken"]["value"].ToString();
string tokenSig = response[0]["data"]["clip"]["playbackAccessToken"]["signature"].ToString();
// Downloading client settings
Client = new WebClient();
Client.DownloadProgressChanged += OnProgress;
// Download
string downloadUrl = $"{(await GetStreams())[quality].OriginalString}?sig={tokenSig}&token={HttpUtility.UrlEncode(tokenVal)}";
token.Token.ThrowIfCancellationRequested();
using (token.Token.Register(Client.CancelAsync))
{
await Client.DownloadFileTaskAsync(downloadUrl, rawFile.Path);
}
}
}
catch (WebException)
{
throw new Exception(ResourceLoader.GetForCurrentView().GetString("VideoPanelProgressLabelErrorInternetConnection"));
}
}
// Rendering
StorageFile outputFile = null;
if (!token.Token.IsCancellationRequested)
{
if (extension != "MP4" && trimStart.TotalMilliseconds > 0 && trimEnd.TotalMilliseconds < duration.TotalMilliseconds)
{
// Set progress to transcoding
ProgressLabelTextblock.Text = $"{ResourceLoader.GetForCurrentView().GetString("VideoPanelProgressLabelTranscoding")} (0%)";
ProgressBar.IsIndeterminate = false;
ProgressBar.Visibility = Visibility.Visible;
ProgressBar.Value = 0;
ProgressIcon.Source = new BitmapImage { UriSource = new Uri($"ms-appx:///Assets/Icons/Universal/{(Application.Current.RequestedTheme == ApplicationTheme.Dark ? "Dark" : "Light")}/Transcoding.png") };
// Create transcoding output file
outputFile = await tempFolder.CreateFileAsync($"processed.{extension.ToLower()}");
// Run processing
await new Media().Transcode(rawFile, outputFile, extension, mediaType, duration, trimStart, trimEnd, token.Token, ProgressLabelTextblock, ProgressBar);
}
else
{
outputFile = rawFile;
}
}
// Return output file
return outputFile;
}
#endregion
#region EVENT HANDLERS
private void OnProgress(object sender, DownloadProgressChangedEventArgs e)
{
ProgressLabelTextblock.Text = $"{ResourceLoader.GetForCurrentView().GetString("VideoPanelProgressLabelDownloading")} ({e.ProgressPercentage}%)";
ProgressBar.IsIndeterminate = false;
ProgressBar.Visibility = Visibility.Visible;
ProgressBar.Value = e.ProgressPercentage;
}
#endregion
}
}

11
VDownload/Sources/VObject.cs
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@@ -74,6 +74,10 @@ namespace VDownload.Sources
VideoSourceHandler = new Twitch.Vod(ID);
SourceIcon = new Uri("ms-appx:///Assets/Icons/Sources/Twitch.png");
break;
case VideoSource.TwitchClip:
VideoSourceHandler = new Twitch.Clip(ID);
SourceIcon = new Uri("ms-appx:///Assets/Icons/Sources/Twitch.png");
break;
}
UniqueID = Videos.GetUniqueID();
}
@@ -96,6 +100,10 @@ namespace VDownload.Sources
metadataTask = ((Twitch.Vod)VideoSourceHandler).GetMetadata();
streamsTask = ((Twitch.Vod)VideoSourceHandler).GetStreams();
break;
case VideoSource.TwitchClip:
metadataTask = ((Twitch.Clip)VideoSourceHandler).GetMetadata();
streamsTask = ((Twitch.Clip)VideoSourceHandler).GetStreams();
break;
default:
throw new Exception(message: "Unknown video source");
}
@@ -211,6 +219,9 @@ namespace VDownload.Sources
case VideoSource.TwitchVod:
VideoTask = ((Twitch.Vod)VideoSourceHandler).Download(tempFolder, SelectedQuality, Extension, MediaType, TrimStart, TrimEnd, Duration, VideoTaskCancellationToken, ProgressLabelTextblock, ProgressBar, ProgressIcon);
break;
case VideoSource.TwitchClip:
VideoTask = ((Twitch.Clip)VideoSourceHandler).Download(tempFolder, SelectedQuality, Extension, MediaType, TrimStart, TrimEnd, Duration, VideoTaskCancellationToken, ProgressLabelTextblock, ProgressBar, ProgressIcon);
break;
default:
throw new Exception(message: "Unknown video source");
}

1
VDownload/VDownload.csproj
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@@ -125,6 +125,7 @@
<Compile Include="Services\Media.cs" />
<Compile Include="Services\Source.cs" />
<Compile Include="Services\Videos.cs" />
<Compile Include="Sources\Twitch\Clip.cs" />
<Compile Include="Sources\Twitch\Vod.cs" />
<Compile Include="Sources\VObject.cs" />
<Compile Include="Views\AddVideo\AddVideoBase.xaml.cs">