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Implement FfProbeKeyframeExtractor and add tests for it

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This commit is contained in:
cvium
2021-09-26 21:07:30 +02:00
parent 41383e6fe4
commit 2899b77cd5
11 changed files with 19519 additions and 7 deletions
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19
src/Jellyfin.MediaEncoding.Hls/Playlist/DynamicHlsPlaylistGenerator.cs
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@@ -90,9 +90,11 @@ namespace Jellyfin.MediaEncoding.Hls.Playlist
.AppendLine();
}
double currentRuntimeInSeconds = 0;
long currentRuntimeInSeconds = 0;
foreach (var length in segments)
{
// Manually convert to ticks to avoid precision loss when converting double
var lengthTicks = Convert.ToInt64(length * TimeSpan.TicksPerSecond);
builder.Append("#EXTINF:")
.Append(length.ToString("0.000000", CultureInfo.InvariantCulture))
.AppendLine(", nodesc")
@@ -101,12 +103,12 @@ namespace Jellyfin.MediaEncoding.Hls.Playlist
.Append(segmentExtension)
.Append(request.QueryString)
.Append("&runtimeTicks=")
.Append(TimeSpan.FromSeconds(currentRuntimeInSeconds).Ticks)
.Append(currentRuntimeInSeconds)
.Append("&actualSegmentLengthTicks=")
.Append(TimeSpan.FromSeconds(length).Ticks)
.Append(lengthTicks)
.AppendLine();
currentRuntimeInSeconds += length;
currentRuntimeInSeconds += lengthTicks;
}
builder.AppendLine("#EXT-X-ENDLIST");
@@ -122,6 +124,7 @@ namespace Jellyfin.MediaEncoding.Hls.Playlist
return false;
}
var succeeded = false;
var cachePath = GetCachePath(filePath);
if (TryReadFromCache(cachePath, out var cachedResult))
{
@@ -139,10 +142,14 @@ namespace Jellyfin.MediaEncoding.Hls.Playlist
return false;
}
CacheResult(cachePath, keyframeData);
succeeded = keyframeData.KeyframeTicks.Count > 0;
if (succeeded)
{
CacheResult(cachePath, keyframeData);
}
}
return keyframeData.KeyframeTicks.Count > 0;
return succeeded;
}
private void CacheResult(string cachePath, KeyframeData keyframeData)