1626256 - Video can't be played because of errors decoding audio sample

Status: NEW

(Core :: Audio/Video: Playback, defect, P3)

Description

[Dirkjan Ochtman (:djc)]

Unfortunately these video files (type video/mp4) are not publicly available.

Error Code: NS_ERROR_DOM_MEDIA_DECODE_ERR (0x806e0004)
Details: mozilla::MediaResult mozilla::AppleATDecoder::DecodeSample(mozilla::MediaRawData *): Error decoding audio sample: 1650549857 @ 485297052

This is from my employers learning content site. Videos are 20 minutes long or so and I've seen quite a few corruptions (one or two per video that I try to watch). Force reloading the file seems to work around the problem.

I'm happy to do more debugging if someone provides instructions.

This happens with Firefox Nightly on macOS 10.15.3 (build ID 20200331093527).

Comment 1

[C.M.Chang[:chunmin]]

Hi :djc,

Could I have limited access to the video that causes this problem? Or another way we can test the Firefox with that video? This problem appears randomly in the past, but we don't have a good way to reproduce it constantly. If the video on the learning content site can constantly reproduce that problem, that will be helpful!

Comment 2

[Dirkjan Ochtman (:djc)]

I don't really want to send you the file since it's proprietary for my employer. I'm a fairly experienced software engineer, though, so if you can walk me through some debugging things you'd want to try I might be able to provide the feedback you need.

Given the fact that the problem disappears if I reload without cache, I'm guessing it's not the video file per se that causes an issue, but something in the network/caching layer?

Comment 3

[Firefox Bug Husbandry Bot]

Because this bug's Severity has not been changed from the default since it was filed, and it's Priority is P3 (Backlog,) indicating it has been triaged, the bug's Severity is being updated to S3 (normal.)