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added image encoder methods

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This commit is contained in:
Luke Pulverenti 2014-03-27 23:32:43 -04:00
parent eda0939b90
commit 1664de62c0
6 changed files with 117 additions and 95 deletions
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2
MediaBrowser.Controller/MediaEncoding/ImageEncodingOptions.cs
View file

@ -13,6 +13,8 @@ namespace MediaBrowser.Controller.MediaEncoding
public int? MaxHeight { get; set; }
public int? Quality { get; set; }
public string Format { get; set; }
}
}

65
MediaBrowser.MediaEncoding/Encoder/ImageEncoder.cs
View file

@ -1,4 +1,5 @@
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Common.IO;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Model.Logging;
using System;
using System.Diagnostics;
@ -13,20 +14,39 @@ namespace MediaBrowser.MediaEncoding.Encoder
{
private readonly string _ffmpegPath;
private readonly ILogger _logger;
private readonly IFileSystem _fileSystem;
private readonly CultureInfo _usCulture = new CultureInfo("en-US");
private static readonly SemaphoreSlim ResourcePool = new SemaphoreSlim(5, 5);
private static readonly SemaphoreSlim ResourcePool = new SemaphoreSlim(10, 10);
public ImageEncoder(string ffmpegPath, ILogger logger)
public ImageEncoder(string ffmpegPath, ILogger logger, IFileSystem fileSystem)
{
_ffmpegPath = ffmpegPath;
_logger = logger;
_fileSystem = fileSystem;
}
public async Task<Stream> EncodeImage(ImageEncodingOptions options, CancellationToken cancellationToken)
{
ValidateInput(options);
await ResourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
try
{
return await EncodeImageInternal(options, cancellationToken).ConfigureAwait(false);
}
finally
{
ResourcePool.Release();
}
}
private async Task<Stream> EncodeImageInternal(ImageEncodingOptions options, CancellationToken cancellationToken)
{
ValidateInput(options);
var process = new Process
{
StartInfo = new ProcessStartInfo
@ -38,11 +58,12 @@ namespace MediaBrowser.MediaEncoding.Encoder
WindowStyle = ProcessWindowStyle.Hidden,
ErrorDialog = false,
RedirectStandardOutput = true,
RedirectStandardError = true
RedirectStandardError = true,
WorkingDirectory = Path.GetDirectoryName(options.InputPath)
}
};
await ResourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
_logger.Debug("ffmpeg " + process.StartInfo.Arguments);
process.Start();
@ -74,8 +95,6 @@ namespace MediaBrowser.MediaEncoding.Encoder
}
}
ResourcePool.Release();
var exitCode = ranToCompletion ? process.ExitCode : -1;
process.Dispose();
@ -94,16 +113,21 @@ namespace MediaBrowser.MediaEncoding.Encoder
memoryStream.Position = 0;
return memoryStream;
}
private string GetArguments(ImageEncodingOptions options)
{
var vfScale = GetFilterGraph(options);
var outputFormat = GetOutputFormat(options);
var outputFormat = GetOutputFormat(options.Format);
return string.Format("-i file:\"{0}\" {1} -f {2}",
options.InputPath,
var quality = (options.Quality ?? 100) * .3;
quality = 31 - quality;
var qualityValue = Convert.ToInt32(Math.Max(quality, 1));
return string.Format("-f image2 -i file:\"{3}\" -q:v {0} {1} -f image2pipe -vcodec {2} -",
qualityValue.ToString(_usCulture),
vfScale,
outputFormat);
outputFormat,
Path.GetFileName(options.InputPath));
}
private string GetFilterGraph(ImageEncodingOptions options)
@ -121,7 +145,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
if (options.MaxWidth.HasValue)
{
widthScale = "min(iw," + options.MaxWidth.Value.ToString(_usCulture) + ")";
widthScale = "min(iw\\," + options.MaxWidth.Value.ToString(_usCulture) + ")";
}
else if (options.Width.HasValue)
{
@ -130,7 +154,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
if (options.MaxHeight.HasValue)
{
heightScale = "min(ih," + options.MaxHeight.Value.ToString(_usCulture) + ")";
heightScale = "min(ih\\," + options.MaxHeight.Value.ToString(_usCulture) + ")";
}
else if (options.Height.HasValue)
{
@ -139,15 +163,20 @@ namespace MediaBrowser.MediaEncoding.Encoder
var scaleMethod = "lanczos";
return string.Format("-vf scale=\"{0}:{1}\" -sws_flags {2}",
widthScale,
return string.Format("-vf scale=\"{0}:{1}\" -sws_flags {2}",
widthScale,
heightScale,
scaleMethod);
}
private string GetOutputFormat(ImageEncodingOptions options)
private string GetOutputFormat(string format)
{
return options.Format;
if (string.Equals(format, "jpeg", StringComparison.OrdinalIgnoreCase) ||
string.Equals(format, "jpg", StringComparison.OrdinalIgnoreCase))
{
return "mjpeg";
}
return format;
}
private void ValidateInput(ImageEncodingOptions options)

41
MediaBrowser.MediaEncoding/Encoder/MediaEncoder.cs
View file

@ -879,45 +879,6 @@ namespace MediaBrowser.MediaEncoding.Encoder
return memoryStream;
}
/// <summary>
/// Starts the and wait for process.
/// </summary>
/// <param name="process">The process.</param>
/// <param name="timeout">The timeout.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise</returns>
private bool StartAndWaitForProcess(Process process, int timeout = 10000)
{
process.Start();
var ranToCompletion = process.WaitForExit(timeout);
if (!ranToCompletion)
{
try
{
_logger.Info("Killing ffmpeg process");
process.Kill();
process.WaitForExit(1000);
}
catch (Win32Exception ex)
{
_logger.ErrorException("Error killing process", ex);
}
catch (InvalidOperationException ex)
{
_logger.ErrorException("Error killing process", ex);
}
catch (NotSupportedException ex)
{
_logger.ErrorException("Error killing process", ex);
}
}
return ranToCompletion;
}
/// <summary>
/// Gets the file input argument.
/// </summary>
@ -950,7 +911,7 @@ namespace MediaBrowser.MediaEncoding.Encoder
public Task<Stream> EncodeImage(ImageEncodingOptions options, CancellationToken cancellationToken)
{
return new ImageEncoder(FFMpegPath, _logger).EncodeImage(options, cancellationToken);
return new ImageEncoder(FFMpegPath, _logger, _fileSystem).EncodeImage(options, cancellationToken);
}
/// <summary>

87
MediaBrowser.Server.Implementations/Drawing/ImageProcessor.cs
View file

@ -3,6 +3,7 @@ using MediaBrowser.Common.IO;
using MediaBrowser.Controller;
using MediaBrowser.Controller.Drawing;
using MediaBrowser.Controller.Entities;
using MediaBrowser.Controller.MediaEncoding;
using MediaBrowser.Controller.Providers;
using MediaBrowser.Model.Drawing;
using MediaBrowser.Model.Entities;
@ -52,12 +53,14 @@ namespace MediaBrowser.Server.Implementations.Drawing
private readonly IFileSystem _fileSystem;
private readonly IJsonSerializer _jsonSerializer;
private readonly IServerApplicationPaths _appPaths;
private readonly IMediaEncoder _mediaEncoder;
public ImageProcessor(ILogger logger, IServerApplicationPaths appPaths, IFileSystem fileSystem, IJsonSerializer jsonSerializer)
public ImageProcessor(ILogger logger, IServerApplicationPaths appPaths, IFileSystem fileSystem, IJsonSerializer jsonSerializer, IMediaEncoder mediaEncoder)
{
_logger = logger;
_fileSystem = fileSystem;
_jsonSerializer = jsonSerializer;
_mediaEncoder = mediaEncoder;
_appPaths = appPaths;
_saveImageSizeTimer = new Timer(SaveImageSizeCallback, null, Timeout.Infinite, Timeout.Infinite);
@ -66,7 +69,7 @@ namespace MediaBrowser.Server.Implementations.Drawing
try
{
sizeDictionary = jsonSerializer.DeserializeFromFile<Dictionary<Guid, ImageSize>>(ImageSizeFile) ??
sizeDictionary = jsonSerializer.DeserializeFromFile<Dictionary<Guid, ImageSize>>(ImageSizeFile) ??
new Dictionary<Guid, ImageSize>();
}
catch (FileNotFoundException)
@ -213,6 +216,39 @@ namespace MediaBrowser.Server.Implementations.Drawing
try
{
var hasPostProcessing = !string.IsNullOrEmpty(options.BackgroundColor) || options.UnplayedCount.HasValue || options.AddPlayedIndicator || options.PercentPlayed.HasValue;
if (!hasPostProcessing)
{
using (var outputStream = await _mediaEncoder.EncodeImage(new ImageEncodingOptions
{
InputPath = originalImagePath,
MaxHeight = options.MaxHeight,
MaxWidth = options.MaxWidth,
Height = options.Height,
Width = options.Width,
Quality = options.Quality,
Format = options.OutputFormat == ImageOutputFormat.Original ? Path.GetExtension(originalImagePath).TrimStart('.') : options.OutputFormat.ToString().ToLower()
}, CancellationToken.None).ConfigureAwait(false))
{
using (var outputMemoryStream = new MemoryStream())
{
// Save to the memory stream
await outputStream.CopyToAsync(outputMemoryStream).ConfigureAwait(false);
var bytes = outputMemoryStream.ToArray();
await toStream.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
// kick off a task to cache the result
await CacheResizedImage(cacheFilePath, bytes).ConfigureAwait(false);
}
return;
}
}
using (var fileStream = _fileSystem.GetFileStream(originalImagePath, FileMode.Open, FileAccess.Read, FileShare.Read, true))
{
// Copy to memory stream to avoid Image locking file
@ -241,8 +277,8 @@ namespace MediaBrowser.Server.Implementations.Drawing
thumbnailGraph.SmoothingMode = SmoothingMode.HighQuality;
thumbnailGraph.InterpolationMode = InterpolationMode.HighQualityBicubic;
thumbnailGraph.PixelOffsetMode = PixelOffsetMode.HighQuality;
thumbnailGraph.CompositingMode = string.IsNullOrEmpty(options.BackgroundColor) && !options.UnplayedCount.HasValue && !options.AddPlayedIndicator && !options.PercentPlayed.HasValue ?
CompositingMode.SourceCopy :
thumbnailGraph.CompositingMode = !hasPostProcessing ?
CompositingMode.SourceCopy :
CompositingMode.SourceOver;
SetBackgroundColor(thumbnailGraph, options);
@ -263,7 +299,7 @@ namespace MediaBrowser.Server.Implementations.Drawing
await toStream.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
// kick off a task to cache the result
CacheResizedImage(cacheFilePath, bytes, semaphore);
await CacheResizedImage(cacheFilePath, bytes).ConfigureAwait(false);
}
}
}
@ -272,11 +308,9 @@ namespace MediaBrowser.Server.Implementations.Drawing
}
}
}
catch
finally
{
semaphore.Release();
throw;
}
}
@ -285,33 +319,26 @@ namespace MediaBrowser.Server.Implementations.Drawing
/// </summary>
/// <param name="cacheFilePath">The cache file path.</param>
/// <param name="bytes">The bytes.</param>
/// <param name="semaphore">The semaphore.</param>
private void CacheResizedImage(string cacheFilePath, byte[] bytes, SemaphoreSlim semaphore)
/// <returns>Task.</returns>
private async Task CacheResizedImage(string cacheFilePath, byte[] bytes)
{
Task.Run(async () =>
try
{
try
{
var parentPath = Path.GetDirectoryName(cacheFilePath);
var parentPath = Path.GetDirectoryName(cacheFilePath);
Directory.CreateDirectory(parentPath);
Directory.CreateDirectory(parentPath);
// Save to the cache location
using (var cacheFileStream = _fileSystem.GetFileStream(cacheFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
// Save to the filestream
await cacheFileStream.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
}
}
catch (Exception ex)
// Save to the cache location
using (var cacheFileStream = _fileSystem.GetFileStream(cacheFilePath, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
_logger.ErrorException("Error writing to image cache file {0}", ex, cacheFilePath);
// Save to the filestream
await cacheFileStream.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
}
finally
{
semaphore.Release();
}
});
}
catch (Exception ex)
{
_logger.ErrorException("Error writing to image cache file {0}", ex, cacheFilePath);
}
}
/// <summary>
@ -519,7 +546,7 @@ namespace MediaBrowser.Server.Implementations.Drawing
{
filename += "iv=" + IndicatorVersion;
}
if (!string.IsNullOrEmpty(backgroundColor))
{
filename += "b=" + backgroundColor;

14
MediaBrowser.ServerApplication/ApplicationHost.cs
View file

@ -473,7 +473,13 @@ namespace MediaBrowser.ServerApplication
LocalizationManager = new LocalizationManager(ServerConfigurationManager, FileSystemManager);
RegisterSingleInstance(LocalizationManager);
ImageProcessor = new ImageProcessor(LogManager.GetLogger("ImageProcessor"), ServerConfigurationManager.ApplicationPaths, FileSystemManager, JsonSerializer);
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(p => progress.Report((.75 * p) + 15));
await RegisterMediaEncoder(innerProgress).ConfigureAwait(false);
progress.Report(90);
ImageProcessor = new ImageProcessor(LogManager.GetLogger("ImageProcessor"), ServerConfigurationManager.ApplicationPaths, FileSystemManager, JsonSerializer, MediaEncoder);
RegisterSingleInstance(ImageProcessor);
DtoService = new DtoService(Logger, LibraryManager, UserManager, UserDataManager, ItemRepository, ImageProcessor, ServerConfigurationManager, FileSystemManager, ProviderManager);
@ -487,12 +493,6 @@ namespace MediaBrowser.ServerApplication
progress.Report(15);
var innerProgress = new ActionableProgress<double>();
innerProgress.RegisterAction(p => progress.Report((.75 * p) + 15));
await RegisterMediaEncoder(innerProgress).ConfigureAwait(false);
progress.Report(90);
EncodingManager = new EncodingManager(ServerConfigurationManager, FileSystemManager, Logger, ItemRepository,
MediaEncoder);
RegisterSingleInstance(EncodingManager);

3
MediaBrowser.sln
View file

@ -267,4 +267,7 @@ Global
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(Performance) = preSolution
HasPerformanceSessions = true
EndGlobalSection
EndGlobal