jellyfin/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs, branch v12.0-rc1

Fix audio sample rate forced to 48 kHz for non-Opus codecs

2026-06-21T07:43:31Z

GetProgressiveAudioFullCommandLine applied the libopus-only sample rate quantization to every codec except Opus, inverting the intended guard. A requested rate such as 44100 Hz was therefore snapped to 48000 Hz for AAC/MP3/FLAC, while Opus (which actually requires the quantization) was skipped entirely. Apply the quantization only when the output codec is Opus, and pass the requested sample rate through unchanged for all other codecs. Fixes #17026 Co-Authored-By: Claude Opus 4.8

Extend TranscodingReason reporting

2026-06-15T07:29:24Z

Fix duplicate trickplay images for interlaced videos

2026-06-09T12:18:17Z

Signed-off-by: nyanmisaka

Fix A/V desync when resuming HLS with video transcode + audio copy (#16580)

2026-05-28T17:26:28Z

Fix A/V desync when resuming HLS with video transcode + audio copy

Fix inconsistent extradata generated by hevc_vaapi on AMD driver

2026-05-23T19:34:54Z

This change is required for upstream ffmpeg 8+, because its mp4 muxer will drop in-band PS when using codec tag hvc1. Signed-off-by: nyanmisaka

Fix StyleCop pattern matching whitespace false-positive

2026-05-21T18:48:43Z

Run tree-wide dotnet format

2026-05-21T18:48:41Z

Normalize VobSub .sub to .idx for embedding, add EncodingHelper tests

2026-05-19T11:03:07Z

Move the .sub to .idx path normalization outside the burn-in check so it applies to subtitle embedding as well. ffmpeg requires the .idx file to read VobSub subtitles. Add unit tests for GetMapArgs and GetInputArgument covering internal subs, external SRT, multi-file SRT, multi-stream MKS containers, and VobSub .sub/.idx path normalization.

Fix external subtitle stream mapping for multi-stream containers

2026-05-19T11:03:07Z

Compute the in-file stream index for external subtitles instead of hardcoding -map 1:0. For single-stream files (SRT/ASS/VTT) the index is always 0, preserving existing behavior. For multi-stream containers like MKS, the correct track is selected by counting sibling streams that share the same Path. Add unit tests for GetMapArgs covering internal subs, external SRT, multiple external files, and multi-stream MKS containers.

Embed external subtitles into MKV when transcoding

2026-05-19T11:03:07Z

Allow external subtitle files (SRT, ASS, PGS, etc.) to be muxed into MKV output containers when the device profile requests Embed delivery. Previously, the IsExternal guard in GetSubtitleProfile excluded external subtitles from Embed consideration entirely, forcing them to be served as separate sidecar files even when the output container supports embedding. Changes: - Extract CanConsiderEmbedSubtitle in StreamBuilder to allow external subs through when transcoding to MKV - Add external subtitle file as FFmpeg input (-i) for Embed delivery - Map external embedded subs from the correct FFmpeg input index - Fix external audio map index to account for the new subtitle input - Extract NeedsExternalSubtitleMuxing in EncodingHelper to deduplicate the external subtitle input check Fixes #16403