SubtitleEncoder.ConvertSubtitles parsed subtitles with libse's static
Subtitle.Parse, which iterates a statically cached list of shared
SubtitleFormat instances. Format parsers keep mutable per-parse state on
the instance, so concurrent subtitle requests corrupted each other's
output (cues mixed across streams and languages, truncated files) or
failed with NullReferenceException when format detection broke down and
Subtitle.Parse returned null.
Parse through the injected ISubtitleParser instead. SubtitleEditParser
instantiates a fresh format parser per call, so requests no longer share
state. Its Parse method now returns the libse Subtitle directly (the
SubtitleTrackInfo flattening was unused since the SubtitleEdit writer
rework) so the writers keep full fidelity such as ASS styling.
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 <noreply@anthropic.com>
Resolve GuideManager conflict by keeping LiveTvChannelImageHelper so
channel icons re-fetch on every guide refresh, including when the URL
is unchanged.
* Write subtitles using SubtitleEdit
We've been using SubtitleEdit to parse since 2021
https://github.com/jellyfin/jellyfin/pull/4984
I think it's time we start using it to write too
* Clean up ConvertSubtitles
* Add JsonWriter back
Seeks to beginning of streams if CanSeek is true.
Added remarks about stream position.
Add test coverage for short-reads.
Fix fast-path tests to actually test the fast path.
Also fix class comment.
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.
Piotr Niełacny