From eca9bf41bcf536708ad74236793b363db3af1e4d Mon Sep 17 00:00:00 2001 From: nyanmisaka Date: Sat, 16 Mar 2024 03:40:14 +0800 Subject: Add TranscodingSegmentCleaner to replace ffmpeg's hlsenc deletion 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 --- Jellyfin.Api/Controllers/DynamicHlsController.cs | 29 +----------------------- 1 file changed, 1 insertion(+), 28 deletions(-) (limited to 'Jellyfin.Api/Controllers/DynamicHlsController.cs') diff --git a/Jellyfin.Api/Controllers/DynamicHlsController.cs b/Jellyfin.Api/Controllers/DynamicHlsController.cs index 590cdc33f..d70c51b86 100644 --- a/Jellyfin.Api/Controllers/DynamicHlsController.cs +++ b/Jellyfin.Api/Controllers/DynamicHlsController.cs @@ -1604,7 +1604,7 @@ public class DynamicHlsController : BaseJellyfinApiController Path.GetFileNameWithoutExtension(outputPath)); } - var hlsArguments = GetHlsArguments(isEventPlaylist, state.SegmentLength); + var hlsArguments = string.Format(CultureInfo.InvariantCulture, "-hls_playlist_type {0} -hls_list_size 0", isEventPlaylist ? "event" : "vod"); return string.Format( CultureInfo.InvariantCulture, @@ -1625,33 +1625,6 @@ public class DynamicHlsController : BaseJellyfinApiController EncodingUtils.NormalizePath(outputPath)).Trim(); } - /// - /// Gets the HLS arguments for transcoding. - /// - /// The command line arguments for HLS transcoding. - private string GetHlsArguments(bool isEventPlaylist, int segmentLength) - { - var enableThrottling = _encodingOptions.EnableThrottling; - var enableSegmentDeletion = _encodingOptions.EnableSegmentDeletion; - - // Only enable segment deletion when throttling is enabled - if (enableThrottling && enableSegmentDeletion) - { - // Store enough segments for configured seconds of playback; this needs to be above throttling settings - var segmentCount = _encodingOptions.SegmentKeepSeconds / segmentLength; - - _logger.LogDebug("Using throttling and segment deletion, keeping {0} segments", segmentCount); - - return string.Format(CultureInfo.InvariantCulture, "-hls_list_size {0} -hls_flags delete_segments", segmentCount.ToString(CultureInfo.InvariantCulture)); - } - else - { - _logger.LogDebug("Using normal playback, is event playlist? {0}", isEventPlaylist); - - return string.Format(CultureInfo.InvariantCulture, "-hls_playlist_type {0} -hls_list_size 0", isEventPlaylist ? "event" : "vod"); - } - } - /// /// Gets the audio arguments for transcoding. /// -- cgit v1.2.3