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Add TranscodingSegmentCleaner to replace ffmpeg's hlsenc deletion

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FFmpeg deletes segments based on its own transcoding progress,
but we need to delete segments based on client download progress.
Since disk and GPU speeds vary, using hlsenc's built-in deletion
will result in premature deletion of some segments. As a consequence,
the server has to constantly respin new ffmpeg instances, resulting
in choppy video playback.

Signed-off-by: nyanmisaka <nst799610810@gmail.com>
This commit is contained in:
nyanmisaka 2024-03-16 03:40:14 +08:00
parent 1e964c9bc2
commit eca9bf41bc
4 changed files with 214 additions and 28 deletions
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8
MediaBrowser.Controller/MediaEncoding/TranscodingJob.cs
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@ -136,6 +136,11 @@ public sealed class TranscodingJob : IDisposable
/// </summary>
public TranscodingThrottler? TranscodingThrottler { get; set; }
/// <summary>
/// Gets or sets transcoding segment cleaner.
/// </summary>
public TranscodingSegmentCleaner? TranscodingSegmentCleaner { get; set; }
/// <summary>
/// Gets or sets last ping date.
/// </summary>
@ -239,6 +244,7 @@ public sealed class TranscodingJob : IDisposable
{
#pragma warning disable CA1849 // Can't await in lock block
TranscodingThrottler?.Stop().GetAwaiter().GetResult();
TranscodingSegmentCleaner?.Stop();
var process = Process;
@ -276,5 +282,7 @@ public sealed class TranscodingJob : IDisposable
CancellationTokenSource = null;
TranscodingThrottler?.Dispose();
TranscodingThrottler = null;
TranscodingSegmentCleaner?.Dispose();
TranscodingSegmentCleaner = null;
}
}