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Add DTS support to ld-process-efm #772

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merged 2 commits into from
Aug 20, 2022
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@atsampson atsampson commented Aug 19, 2022

This is based on @DreckSoft's work in #527. It adds a --dts option to accept the alternative Sync 0 value that some DTS LaserDiscs use. Since audio error concealment doesn't make sense for DTS, it also changes the default error treatment when the option is used (and checks that you haven't specified multiple treatment options).

It's been tested on clips from the following DTS discs:

  • Armageddon - decodes as normal
  • Dragonheart - decodes as normal
  • Goldeneye - needs --dts --time
  • Jurassic Park - needs --dts --time
  • Jurassic Park: The Lost World - decodes as normal

Fixes #527.

Note to self: will need to add the new option, and some advice on using it, to the wiki.

@DreckSoft tested ld-process-efm with several DTS LaserDiscs, and found
that while some decode as with PCM audio, others use a different F3 Sync
0 value. This option adjusts the behaviour of EfmToF3Frames accordingly.

It also disables error concealment, defaulting to error passthrough
instead.
@atsampson atsampson added enhancement ld-decode-tools An issue only affecting the ld-decode-tools labels Aug 19, 2022
@happycube happycube merged commit 4a04113 into happycube:master Aug 20, 2022
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I've updated the ld-process-efm wiki page to match this.

@atsampson atsampson deleted the efmdts branch August 20, 2022 01:52
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Support DTS Processing / Extraction
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