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More stream selection refactors #10733
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More stream selection refactors #10733
Profpatsch
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I was trying to understand the logic here, and noticed the indirection via a QualityResolver interfaces is pretty unnecessary. Just branching directly makes the logic a lot easier to follow. The `-999` sentinel value is a bit dumb, but java does not recognize that videoIndex is always initialized. Nice side-effect, the `Resolver` interface was completely unused and can be dropped.
The function never returns `null`.
This should make the purpose of these functions more clear.
All functions that set videoIndex return `-1` if the list is empty, so we don’t have to check manually for that case. I’m somewhat more questioning why `StreamInfoTag.of` allows the index to be out-of-bounds in the constructor, that should be an error.
Instead of allowing to pass arbitrary out-of-bounds indexes to these bean classes, ensure that the index is always valid for the list. This is always true for our filter functions, except they all return `-1` if the list was empty. We have to check/assert that beforehand. This improves the logic somewhat, because fetching the stream always returns something now. Ideally, we wouldn’t be filtering stuff and then passing indices around everywhere, but that’s the current state of things. ~~~ I took the liberty to remove the `.of`-wrappers, because they don’t really add much compared to just calling the constructor here.
Why would you serialize objects to avoid a null check, that’s just weird.
TobiGr
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Jan 6, 2024
Quality Gate passedThe SonarCloud Quality Gate passed, but some issues were introduced. 2 New issues |
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Instead of the `trackId`, which is only ever set for the `youtube` backend, we use the audio stream language and tracktype. These are `null` for youtube videos without language selector, leading to a single audio stream being selected. For media.ccc.de, the language on audio tracks is always set correctly, meaning for a video with German and English tracks we get two groups, which are then sorted according to the preferences of users. I verified that youtube still works by playing https://www.youtube.com/watch?v=8bDRVP9xSfc and selecting the different audio streams, going to background etc. and also tried with a video without multiple audio tracks. For media.ccc.de, it will select the right audio track as well. Unfortunately, media.ccc.de returns videos with multiple audio track muxed into the video itself, which is still buggy because the wrong track is selected by default. This is gonna be fixed/worked around in the next commit.
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Based on #10730
Some more simplifications.
What is it?
Due diligence