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This commit is contained in:
cvium
2021-09-25 10:41:36 +02:00
parent 35c0801d6c
commit be233b49b6
4 changed files with 45 additions and 24 deletions
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25
src/Jellyfin.MediaEncoding.Keyframes/KeyframeExtractor.cs
View File

@@ -32,25 +32,38 @@ namespace Jellyfin.MediaEncoding.Keyframes
/// <returns>An instance of <see cref="KeyframeData"/>.</returns>
public KeyframeData GetKeyframeData(string filePath, string ffProbePath, string ffToolPath)
{
var extension = Path.GetExtension(filePath);
if (string.Equals(extension, ".mkv", StringComparison.OrdinalIgnoreCase))
var extension = Path.GetExtension(filePath.AsSpan());
if (extension.Equals(".mkv", StringComparison.OrdinalIgnoreCase))
{
try
{
return MatroskaKeyframeExtractor.GetKeyframeData(filePath);
}
catch (InvalidOperationException ex)
catch (Exception ex)
{
_logger.LogError(ex, "{MatroskaKeyframeExtractor} failed to extract keyframes", nameof(MatroskaKeyframeExtractor));
_logger.LogError(ex, "{ExtractorType} failed to extract keyframes", nameof(MatroskaKeyframeExtractor));
}
}
if (!string.IsNullOrEmpty(ffToolPath))
try
{
return FfToolKeyframeExtractor.GetKeyframeData(ffToolPath, filePath);
}
catch (Exception ex)
{
_logger.LogError(ex, "{ExtractorType} failed to extract keyframes", nameof(FfToolKeyframeExtractor));
}
return FfProbeKeyframeExtractor.GetKeyframeData(ffProbePath, filePath);
try
{
return FfProbeKeyframeExtractor.GetKeyframeData(ffProbePath, filePath);
}
catch (Exception ex)
{
_logger.LogError(ex, "{ExtractorType} failed to extract keyframes", nameof(FfProbeKeyframeExtractor));
}
return new KeyframeData(0, Array.Empty<long>());
}
}
}

8
src/Jellyfin.MediaEncoding.Keyframes/Matroska/MatroskaKeyframeExtractor.cs
View File

@@ -49,7 +49,7 @@ namespace Jellyfin.MediaEncoding.Keyframes.Matroska
if (trackNumber == videoTrackNumber)
{
keyframes.Add(ScaleToNanoseconds(cueTime, info.TimestampScale));
keyframes.Add(ScaleToTicks(cueTime, info.TimestampScale));
}
reader.LeaveContainer();
@@ -57,17 +57,17 @@ namespace Jellyfin.MediaEncoding.Keyframes.Matroska
reader.LeaveContainer();
var result = new KeyframeData(ScaleToNanoseconds(info.Duration ?? 0, info.TimestampScale), keyframes);
var result = new KeyframeData(ScaleToTicks(info.Duration ?? 0, info.TimestampScale), keyframes);
return result;
}
private static long ScaleToNanoseconds(ulong unscaledValue, long timestampScale)
private static long ScaleToTicks(ulong unscaledValue, long timestampScale)
{
// TimestampScale is in nanoseconds, scale it to get the value in ticks, 1 tick == 100 ns
return (long)unscaledValue * timestampScale / 100;
}
private static long ScaleToNanoseconds(double unscaledValue, long timestampScale)
private static long ScaleToTicks(double unscaledValue, long timestampScale)
{
// TimestampScale is in nanoseconds, scale it to get the value in ticks, 1 tick == 100 ns
return Convert.ToInt64(unscaledValue * timestampScale / 100);