2013-09-23 17:37:50 +02:00
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.IO;
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using MediaBrowser.Common.Net;
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2013-09-25 02:54:51 +02:00
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using MediaBrowser.Model.IO;
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2013-09-23 17:37:50 +02:00
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using MediaBrowser.Model.Logging;
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2013-09-23 19:14:17 +02:00
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using MediaBrowser.Model.Net;
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2013-09-23 17:37:50 +02:00
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using System;
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using System.Collections.Generic;
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2013-09-23 17:37:50 +02:00
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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2013-09-23 17:37:50 +02:00
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using System.Threading.Tasks;
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2013-09-25 02:54:51 +02:00
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namespace MediaBrowser.ServerApplication.FFMpeg
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2013-09-23 17:37:50 +02:00
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{
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public class FFMpegDownloader
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{
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private readonly IHttpClient _httpClient;
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private readonly IApplicationPaths _appPaths;
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private readonly ILogger _logger;
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private readonly IZipClient _zipClient;
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private readonly string[] _fontUrls = new[]
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{
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"https://www.dropbox.com/s/pj847twf7riq0j7/ARIALUNI.7z?dl=1"
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};
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public FFMpegDownloader(ILogger logger, IApplicationPaths appPaths, IHttpClient httpClient, IZipClient zipClient)
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{
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_logger = logger;
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_appPaths = appPaths;
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_httpClient = httpClient;
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_zipClient = zipClient;
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}
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public async Task<FFMpegInfo> GetFFMpegInfo()
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{
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var versionedDirectoryPath = Path.Combine(GetMediaToolsPath(true), FFMpegDownloadInfo.Version);
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2013-09-23 18:00:22 +02:00
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var info = new FFMpegInfo
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{
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ProbePath = Path.Combine(versionedDirectoryPath, FFMpegDownloadInfo.FFProbeFilename),
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Path = Path.Combine(versionedDirectoryPath, FFMpegDownloadInfo.FFMpegFilename),
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Version = FFMpegDownloadInfo.Version
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};
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Directory.CreateDirectory(versionedDirectoryPath);
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var tasks = new List<Task>();
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if (!File.Exists(info.ProbePath) || !File.Exists(info.Path))
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{
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tasks.Add(DownloadFFMpeg(info));
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}
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tasks.Add(DownloadFonts(versionedDirectoryPath));
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await Task.WhenAll(tasks).ConfigureAwait(false);
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return info;
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}
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private async Task DownloadFFMpeg(FFMpegInfo info)
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{
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foreach (var url in FFMpegDownloadInfo.FfMpegUrls)
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{
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try
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{
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var tempFile = await DownloadFFMpeg(info, url).ConfigureAwait(false);
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ExtractFFMpeg(tempFile, Path.GetDirectoryName(info.Path));
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return;
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}
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catch (HttpException ex)
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{
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}
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}
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throw new ApplicationException("Unable to download required components. Please try again later.");
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}
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private Task<string> DownloadFFMpeg(FFMpegInfo info, string url)
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{
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return _httpClient.GetTempFile(new HttpRequestOptions
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{
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Url = url,
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CancellationToken = CancellationToken.None,
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Progress = new Progress<double>(),
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// Make it look like a browser
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// Try to hide that we're direct linking
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UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/30.0.1599.47 Safari/537.36"
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});
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}
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private void ExtractFFMpeg(string tempFile, string targetFolder)
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{
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_logger.Debug("Extracting ffmpeg from {0}", tempFile);
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var tempFolder = Path.Combine(_appPaths.TempDirectory, Guid.NewGuid().ToString());
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2013-10-01 20:24:27 +02:00
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Directory.CreateDirectory(tempFolder);
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try
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{
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ExtractArchive(tempFile, tempFolder);
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var files = Directory.EnumerateFiles(tempFolder, "*", SearchOption.AllDirectories).ToList();
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foreach (var file in files.Where(i =>
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{
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var filename = Path.GetFileName(i);
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return
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string.Equals(filename, FFMpegDownloadInfo.FFProbeFilename, StringComparison.OrdinalIgnoreCase) ||
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string.Equals(filename, FFMpegDownloadInfo.FFMpegFilename, StringComparison.OrdinalIgnoreCase);
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}))
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{
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File.Copy(file, Path.Combine(targetFolder, Path.GetFileName(file)), true);
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}
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}
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finally
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{
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DeleteFile(tempFile);
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}
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}
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private void ExtractArchive(string archivePath, string targetPath)
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{
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if (string.Equals(FFMpegDownloadInfo.ArchiveType, "7z", StringComparison.OrdinalIgnoreCase))
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{
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_zipClient.ExtractAllFrom7z(archivePath, targetPath, true);
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}
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else if (string.Equals(FFMpegDownloadInfo.ArchiveType, "gz", StringComparison.OrdinalIgnoreCase))
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{
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_zipClient.ExtractAllFromTar(archivePath, targetPath, true);
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}
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}
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private void DeleteFile(string path)
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{
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try
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{
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File.Delete(path);
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}
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catch (IOException ex)
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{
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_logger.ErrorException("Error deleting temp file {0}", ex, path);
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}
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}
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/// <summary>
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/// Extracts the fonts.
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/// </summary>
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/// <param name="targetPath">The target path.</param>
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private async Task DownloadFonts(string targetPath)
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{
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try
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{
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var fontsDirectory = Path.Combine(targetPath, "fonts");
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Directory.CreateDirectory(fontsDirectory);
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const string fontFilename = "ARIALUNI.TTF";
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var fontFile = Path.Combine(fontsDirectory, fontFilename);
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if (!File.Exists(fontFile))
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{
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await DownloadFontFile(fontsDirectory, fontFilename).ConfigureAwait(false);
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}
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await WriteFontConfigFile(fontsDirectory).ConfigureAwait(false);
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}
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catch (HttpException ex)
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{
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// Don't let the server crash because of this
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_logger.ErrorException("Error downloading ffmpeg font files", ex);
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}
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catch (Exception ex)
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{
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// Don't let the server crash because of this
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_logger.ErrorException("Error writing ffmpeg font files", ex);
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2013-09-23 17:37:50 +02:00
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}
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}
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/// <summary>
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/// Downloads the font file.
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/// </summary>
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/// <param name="fontsDirectory">The fonts directory.</param>
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/// <param name="fontFilename">The font filename.</param>
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/// <returns>Task.</returns>
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private async Task DownloadFontFile(string fontsDirectory, string fontFilename)
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{
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var existingFile = Directory
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.EnumerateFiles(_appPaths.ProgramDataPath, fontFilename, SearchOption.AllDirectories)
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.FirstOrDefault();
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if (existingFile != null)
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{
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try
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{
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File.Copy(existingFile, Path.Combine(fontsDirectory, fontFilename), true);
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return;
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}
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catch (IOException ex)
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{
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// Log this, but don't let it fail the operation
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_logger.ErrorException("Error copying file", ex);
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}
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}
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2013-09-23 20:14:07 +02:00
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string tempFile = null;
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foreach (var url in _fontUrls)
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{
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2013-09-23 20:14:07 +02:00
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try
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{
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tempFile = await _httpClient.GetTempFile(new HttpRequestOptions
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{
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Url = url,
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Progress = new Progress<double>()
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}).ConfigureAwait(false);
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break;
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}
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catch (Exception ex)
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{
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// The core can function without the font file, so handle this
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_logger.ErrorException("Failed to download ffmpeg font file from {0}", ex, url);
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}
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}
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if (string.IsNullOrEmpty(tempFile))
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{
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return;
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}
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2013-09-23 17:37:50 +02:00
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2013-10-13 05:39:22 +02:00
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ExtractArchive(tempFile, fontsDirectory);
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2013-09-23 17:37:50 +02:00
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try
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{
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File.Delete(tempFile);
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}
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catch (IOException ex)
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{
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// Log this, but don't let it fail the operation
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_logger.ErrorException("Error deleting temp file {0}", ex, tempFile);
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}
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}
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/// <summary>
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/// Writes the font config file.
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/// </summary>
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/// <param name="fontsDirectory">The fonts directory.</param>
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/// <returns>Task.</returns>
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private async Task WriteFontConfigFile(string fontsDirectory)
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{
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const string fontConfigFilename = "fonts.conf";
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var fontConfigFile = Path.Combine(fontsDirectory, fontConfigFilename);
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if (!File.Exists(fontConfigFile))
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{
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var contents = string.Format("<?xml version=\"1.0\"?><fontconfig><dir>{0}</dir><alias><family>Arial</family><prefer>Arial Unicode MS</prefer></alias></fontconfig>", fontsDirectory);
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var bytes = Encoding.UTF8.GetBytes(contents);
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using (var fileStream = new FileStream(fontConfigFile, FileMode.Create, FileAccess.Write,
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FileShare.Read, StreamDefaults.DefaultFileStreamBufferSize,
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FileOptions.Asynchronous))
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{
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await fileStream.WriteAsync(bytes, 0, bytes.Length);
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}
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}
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}
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/// <summary>
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/// Gets the media tools path.
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/// </summary>
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/// <param name="create">if set to <c>true</c> [create].</param>
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/// <returns>System.String.</returns>
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private string GetMediaToolsPath(bool create)
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{
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var path = Path.Combine(_appPaths.ProgramDataPath, "ffmpeg");
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Directory.CreateDirectory(path);
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2013-09-23 17:37:50 +02:00
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return path;
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}
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}
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}
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