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added dual pass image extraction

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This commit is contained in:
Luke Pulverenti 2013-04-15 19:38:08 -04:00
parent 27d2d2b89a
commit 06a7d64525
2 changed files with 21 additions and 8 deletions
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5
MediaBrowser.Server.Implementations/HttpServer/HttpServer.cs
View File

@ -357,10 +357,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
_logger.ErrorException("AcceptWebSocketAsync error", ex);
ctx.Response.StatusCode = 500;
}
finally
{
ctx.Response.Close();
ctx.Response.Close();
}
}

24
MediaBrowser.Server.Implementations/MediaEncoder/MediaEncoder.cs
View File

@ -708,11 +708,26 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentException">Must use inputPath list overload</exception>
public Task ExtractImage(string[] inputFiles, InputType type, TimeSpan? offset, string outputPath, CancellationToken cancellationToken)
public async Task ExtractImage(string[] inputFiles, InputType type, TimeSpan? offset, string outputPath, CancellationToken cancellationToken)
{
var resourcePool = type == InputType.AudioFile ? _audioImageResourcePool : _videoImageResourcePool;
return ExtractImageInternal(GetInputArgument(inputFiles, type), type, offset, outputPath, resourcePool, cancellationToken);
var inputArgument = GetInputArgument(inputFiles, type);
if (type != InputType.AudioFile)
{
try
{
await ExtractImageInternal(inputArgument, type, offset, outputPath, true, resourcePool, cancellationToken).ConfigureAwait(false);
return;
}
catch
{
_logger.Error("I-frame image extraction failed, will attempt standard way. Input: {0}", inputArgument);
}
}
await ExtractImageInternal(inputArgument, type, offset, outputPath, false, resourcePool, cancellationToken).ConfigureAwait(false);
}
/// <summary>
@ -722,6 +737,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
/// <param name="type">The type.</param>
/// <param name="offset">The offset.</param>
/// <param name="outputPath">The output path.</param>
/// <param name="useIFrame">if set to <c>true</c> [use I frame].</param>
/// <param name="resourcePool">The resource pool.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
@ -729,7 +745,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
/// or
/// outputPath</exception>
/// <exception cref="System.ApplicationException"></exception>
private async Task ExtractImageInternal(string inputPath, InputType type, TimeSpan? offset, string outputPath, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
private async Task ExtractImageInternal(string inputPath, InputType type, TimeSpan? offset, string outputPath, bool useIFrame, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(inputPath))
{
@ -741,7 +757,7 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
throw new ArgumentNullException("outputPath");
}
var args = type != InputType.Dvd ? string.Format("-i {0} -threads 0 -v quiet -vframes 1 -filter:v select=\\'eq(pict_type\\,I)\\' -f image2 \"{1}\"", inputPath, outputPath) :
var args = useIFrame ? string.Format("-i {0} -threads 0 -v quiet -vframes 1 -filter:v select=\\'eq(pict_type\\,I)\\' -f image2 \"{1}\"", inputPath, outputPath) :
string.Format("-i {0} -threads 0 -v quiet -vframes 1 -f image2 \"{1}\"", inputPath, outputPath);
var probeSize = GetProbeSizeArgument(type);