If a feed has a broken mime type that is not audio or video,
try to still use it as audio (if there is no audio yet).
This might lead to AP trying to play random other files that are not media files,
but it works around publishers messing up their mime types.
AntennaPod is quite slow with huge feeds. The reason is that we have a bunch of workarounds for misbehaving feeds that also make it slower to work with feeds that do not misbehave.
Changes:
- Only start guessing duplicate episodes when no "proper" match is found
- Only parse non-html as HTML for attributes that really need it
- Do not log failed Long parsing when size is not specified
- Try to parse dates with RFC822 first before falling back to workarounds for other formats
I ran a benchmark with "Stuff you should know" (for which the workarounds are not needed) containing 2k episodes. Includes download of 8MB of feed XML (~5 seconds), debug build.
Before: 44 seconds, after: 13 seconds ==> 3.4 times faster feed refresh
* Move duplicate detection to one single place
* Canonicalize some common characters that are often confused
* Assume same episode even when date is off by 1 week
* Display duplicate detection as warning, not error
