1932566 - VideoDecoder.flush() incorrectly throws exceptions

Status: UNCONFIRMED

(Core :: Audio/Video: Web Codecs, defect)

Description

[Pierre Ossman]

Steps to reproduce:

1. Call VideoDecoder.decode() when Firefox is in the broken state described in bug 1932392.
2. Call VideoDecoder.flush()

Actual results:

1. The error callback given to VideoDecoder's constructor is called
2. VideoDecoder.flush() throws the same Error

Expected results:

Only the error callback should have been called.

Comment 1

[C.M.Chang[:chunmin]]

What kind of error do you see from flush() or decode()? By the spec, InvalidStateError should be thrown. See: https://w3c.github.io/webcodecs/#dom-videodecoder-flush

Comment 2

[Pierre Ossman]

I'm unsure what the exact error was. I think it was something more along the lines of the codec being unsupported.

But even so, the specification states that flush() should return a rejected promise at worst. There isn't anything about it throwing an exception.