[Webkit-unassigned] [Bug 282227] New: [WebCodec] Test incorrectly assumes that no frame returned should be an error

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=282227

            Bug ID: 282227
           Summary: [WebCodec] Test incorrectly assumes that no frame
                    returned should be an error
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jean-yves.avenard at apple.com
                CC: youennf at gmail.com

Both imported/w3c/web-platform-tests/webcodecs/videoDecoder-codec-specific.https.any.html and 
imported/w3c/web-platform-tests/webcodecs/videoDecoder-codec-specific.https.any.worker.html

assume that when decoding some content that yields no frame should be considered an error.

This is incorrect.

Both VP9 and VP8 may require to decode multiple frames before a decoded frame is returned.

Both VP8 and VP9 have the concept of alternative reference frames, and to properly decode those you need to input multiple frames to get one out.
When this occurs it shouldn't be considered as an error.

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