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Implement VP9 PayloadParams fuzzy matching #499

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merged 1 commit into from
Apr 18, 2024

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evdokimovs
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Currently, VP9 is only matched by exact match, leading to potential issues with sessions in Chrome and Firefox browsers. The problem arises from Firefox not setting the profile_id, causing str0m to interpret Firefox's PayloadParams as incompatible with Chrome. According to the VP9 specification, when profile_id is unset, it should default to 0. This pull request addresses this issue by implementing the functionality to default profile_id to 0 in the fuzzy match of VP9.

If no profile-id is present, Profile 0 MUST be inferred. (The profile-id parameter was added relatively late in the development of this specification, so some existing implementations may not send it.)

draft-ietf-payload-vp9-16#section-6

@evdokimovs evdokimovs marked this pull request as ready for review April 18, 2024 10:39
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@algesten algesten left a comment

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"fuzzy" :)

Thanks!

@algesten algesten merged commit 60a778c into algesten:main Apr 18, 2024
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2 participants