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feat(audio): support DTS:X Profile 2 with MP4 muxing

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Route titles with a dtsx/dtsy sample entry to MP4 via MP4Box, since Matroska has no CodecID for DTS-UHD. Add per-rendition HLS audio codec selection, fix merge_segments progress and its cleanup path.
This commit is contained in:
imSp4rky
2026-09-04 14:19:29 -06:00
parent b391ffc80a
commit 235839abc8
21 changed files with 1020 additions and 40 deletions
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docs/getting-started/installation.md
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@@ -124,6 +124,7 @@ download. For example, `dovi_tool` only matters if you download Dolby Vision vid
| Tool | Binary looked up | Why it is needed |
| --- | --- | --- |
| Bento4 (`mp4decrypt`) | `mp4decrypt` | Alternative DRM decryptor to shaka-packager |
| MP4Box (GPAC) | `MP4Box` | Muxing DTS:X Profile 2 (DTS-UHD) audio |
| dovi_tool | `dovi_tool` | Dolby Vision metadata handling |
| HDR10Plus_tool | `hdr10plus_tool` | HDR10+ metadata handling |
| SubtitleEdit | `seconv`, `SubtitleEdit` | Subtitle conversion (the `SeConv` CLI from 5.x) |
@@ -135,6 +136,10 @@ download. For example, `dovi_tool` only matters if you download Dolby Vision vid
| Docker | `docker` | Gluetun VPN proxy support |
| Git | `git` | Fetching and updating remote service repositories |
!!! info "MP4Box is only used for DTS:X Profile 2"
Titles with DTS:X Profile 2 (DTS-UHD) audio mux to MP4; everything else muxes to MKV
with `mkvmerge`. Install with `apt install gpac`.
!!! tip "SubtitleEdit specifics"
unshackle looks for `seconv` first, the batch CLI shipped with
SubtitleEdit 5.x, before falling back to a `SubtitleEdit` (4.x) binary. The