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removed duplicate image extraction method

This commit is contained in:
Luke Pulverenti 2014-02-06 18:57:21 -05:00
parent 73677b94c6
commit 4462323948
3 changed files with 8 additions and 176 deletions
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9
MediaBrowser.Controller/MediaInfo/FFMpegManager.cs
View File

@ -177,7 +177,14 @@ namespace MediaBrowser.Controller.MediaInfo
Directory.CreateDirectory(parentPath);
await _encoder.ExtractImage(inputPath, type, false, video.Video3DFormat, time, path, cancellationToken).ConfigureAwait(false);
using (var stream = await _encoder.ExtractImage(inputPath, type, false, video.Video3DFormat, time, cancellationToken).ConfigureAwait(false))
{
using (var fileStream = _fileSystem.GetFileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read, true))
{
await stream.CopyToAsync(fileStream).ConfigureAwait(false);
}
}
chapter.ImagePath = path;
changesMade = true;
}

13
MediaBrowser.Controller/MediaInfo/IMediaEncoder.cs
View File

@ -23,19 +23,6 @@ namespace MediaBrowser.Controller.MediaInfo
/// <value>The version.</value>
string Version { get; }
/// <summary>
/// Extracts the image.
/// </summary>
/// <param name="inputFiles">The input files.</param>
/// <param name="type">The type.</param>
/// <param name="isAudio">if set to <c>true</c> [is audio].</param>
/// <param name="threedFormat">The threed format.</param>
/// <param name="offset">The offset.</param>
/// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
Task ExtractImage(string[] inputFiles, InputType type, bool isAudio, Video3DFormat? threedFormat, TimeSpan? offset, string outputPath, CancellationToken cancellationToken);
/// <summary>
/// Extracts the image.
/// </summary>

162
MediaBrowser.Server.Implementations/MediaEncoder/MediaEncoder.cs
View File

@ -795,40 +795,6 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
}
}
/// <summary>
/// Extracts the image.
/// </summary>
/// <param name="inputFiles">The input files.</param>
/// <param name="type">The type.</param>
/// <param name="isAudio">if set to <c>true</c> [is audio].</param>
/// <param name="threedFormat">The threed format.</param>
/// <param name="offset">The offset.</param>
/// <param name="outputPath">The output path.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>Task.</returns>
/// <exception cref="System.ArgumentException">Must use inputPath list overload</exception>
public async Task ExtractImage(string[] inputFiles, InputType type, bool isAudio, Video3DFormat? threedFormat, TimeSpan? offset, string outputPath, CancellationToken cancellationToken)
{
var resourcePool = isAudio ? _audioImageResourcePool : _videoImageResourcePool;
var inputArgument = GetInputArgument(inputFiles, type);
if (!isAudio)
{
try
{
await ExtractImageInternal(inputArgument, type, threedFormat, 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, threedFormat, offset, outputPath, false, resourcePool, cancellationToken).ConfigureAwait(false);
}
public async Task<Stream> ExtractImage(string[] inputFiles, InputType type, bool isAudio,
Video3DFormat? threedFormat, TimeSpan? offset, CancellationToken cancellationToken)
{
@ -851,134 +817,6 @@ namespace MediaBrowser.Server.Implementations.MediaEncoder
return await ExtractImageInternal(inputArgument, type, threedFormat, offset, false, resourcePool, cancellationToken).ConfigureAwait(false);
}
/// <summary>
/// Extracts the image.
/// </summary>
/// <param name="inputPath">The input path.</param>
/// <param name="type">The type.</param>
/// <param name="threedFormat">The threed format.</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>
/// <exception cref="System.ArgumentNullException">inputPath
/// or
/// outputPath</exception>
/// <exception cref="System.ApplicationException"></exception>
private async Task ExtractImageInternal(string inputPath, InputType type, Video3DFormat? threedFormat, TimeSpan? offset, string outputPath, bool useIFrame, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(inputPath))
{
throw new ArgumentNullException("inputPath");
}
if (string.IsNullOrEmpty(outputPath))
{
throw new ArgumentNullException("outputPath");
}
// apply some filters to thumbnail extracted below (below) crop any black lines that we made and get the correct ar then scale to width 600.
// This filter chain may have adverse effects on recorded tv thumbnails if ar changes during presentation ex. commercials @ diff ar
var vf = "crop=min(iw\\,ih*dar):min(ih\\,iw/dar):(iw-min(iw\\,iw*sar))/2:(ih - min (ih\\,ih/sar))/2,scale=600:600/dar";
if (threedFormat.HasValue)
{
switch (threedFormat.Value)
{
case Video3DFormat.HalfSideBySide:
vf = "crop=iw/2:ih:0:0,scale=(iw*2):ih,setdar=dar=a,crop=min(iw\\,ih*dar):min(ih\\,iw/dar):(iw-min(iw\\,iw*sar))/2:(ih - min (ih\\,ih/sar))/2,scale=600:600/dar";
// hsbs crop width in half,scale to correct size, set the display aspect,crop out any black bars we may have made the scale width to 600. Work out the correct height based on the display aspect it will maintain the aspect where -1 in this case (3d) may not.
break;
case Video3DFormat.FullSideBySide:
vf = "crop=iw/2:ih:0:0,setdar=dar=a,,crop=min(iw\\,ih*dar):min(ih\\,iw/dar):(iw-min(iw\\,iw*sar))/2:(ih - min (ih\\,ih/sar))/2,scale=600:600/dar";
//fsbs crop width in half,set the display aspect,crop out any black bars we may have made the scale width to 600.
break;
case Video3DFormat.HalfTopAndBottom:
vf = "crop=iw:ih/2:0:0,scale=(iw*2):ih),setdar=dar=a,crop=min(iw\\,ih*dar):min(ih\\,iw/dar):(iw-min(iw\\,iw*sar))/2:(ih - min (ih\\,ih/sar))/2,scale=600:600/dar";
//htab crop heigh in half,scale to correct size, set the display aspect,crop out any black bars we may have made the scale width to 600
break;
case Video3DFormat.FullTopAndBottom:
vf = "crop=iw:ih/2:0:0,setdar=dar=a,crop=min(iw\\,ih*dar):min(ih\\,iw/dar):(iw-min(iw\\,iw*sar))/2:(ih - min (ih\\,ih/sar))/2,scale=600:600/dar";
// ftab crop heigt in half, set the display aspect,crop out any black bars we may have made the scale width to 600
break;
}
}
// Use ffmpeg to sample 100 (we can drop this if required using thumbnail=50 for 50 frames) frames and pick the best thumbnail. Have a fall back just in case.
var args = useIFrame ? string.Format("-i {0} -threads 0 -v quiet -vframes 1 -vf \"thumbnail,{2}\" -f image2 \"{1}\"", inputPath, outputPath, vf) :
string.Format("-i {0} -threads 0 -v quiet -vframes 1 -vf \"{2}\" -f image2 \"{1}\"", inputPath, outputPath, vf);
var probeSize = GetProbeSizeArgument(type);
if (!string.IsNullOrEmpty(probeSize))
{
args = probeSize + " " + args;
}
if (offset.HasValue)
{
args = string.Format("-ss {0} ", Convert.ToInt32(offset.Value.TotalSeconds)).ToString(UsCulture) + args;
}
var process = new Process
{
StartInfo = new ProcessStartInfo
{
CreateNoWindow = true,
UseShellExecute = false,
FileName = FFMpegPath,
Arguments = args,
WindowStyle = ProcessWindowStyle.Hidden,
ErrorDialog = false
}
};
await resourcePool.WaitAsync(cancellationToken).ConfigureAwait(false);
var ranToCompletion = StartAndWaitForProcess(process);
resourcePool.Release();
var exitCode = ranToCompletion ? process.ExitCode : -1;
process.Dispose();
var failed = false;
if (exitCode == -1)
{
failed = true;
if (File.Exists(outputPath))
{
try
{
_logger.Info("Deleting extracted image due to failure: ", outputPath);
File.Delete(outputPath);
}
catch (IOException ex)
{
_logger.ErrorException("Error deleting extracted image {0}", ex, outputPath);
}
}
}
else if (!File.Exists(outputPath))
{
failed = true;
}
if (failed)
{
var msg = string.Format("ffmpeg image extraction failed for {0}", inputPath);
_logger.Error(msg);
throw new ApplicationException(msg);
}
}
private async Task<Stream> ExtractImageInternal(string inputPath, InputType type, Video3DFormat? threedFormat, TimeSpan? offset, bool useIFrame, SemaphoreSlim resourcePool, CancellationToken cancellationToken)
{
if (string.IsNullOrEmpty(inputPath))