1129778 - Hot loop in demuxer/MP4Reader when network stalls

Status: RESOLVED INVALID

(Core :: Audio/Video, defect, P1)

Description

[Chris Pearce [:cpearce (Not reading bugmail)]]

If you try to load an MP4 file off a server that does not transmit any content bytes, you get an infinite stream of the following output repeated:

E/SampleIterator(  612): getChunkOffset return error
E/SampleIterator(  612): getChunkOffset return error
E/MPEG4Extractor(  612): Unexpected sample table problem
E/MPEG4Extractor(  612): Unexpected sample table problem

I assume we're failing to read a sample, and retrying, or otherwise stuck in a loop.

Comment 1

[Bobby Holley (:bholley)]

Chris, do you have a test server or sjs for this? I could make one, but I'd be curious to know the exact setup you reproduced this on.

Comment 2

[Lawrence Mandel [:lmandel] (use needinfo)]

Tracking all MSE P1 bugs for Firefox 37.

Comment 3

[Anthony Jones (:ajones, :kentuckyfriedtakahe, :k17e)]

Chris - can you help with making this reproducible?

Comment 4

[Bobby Holley (:bholley)]

Per discussion in the meeting - chris is going to retest with his setup, and if it still appears to be a problem, I'll write an sjs mochitest and fix it.

Comment 5

[Chris Pearce [:cpearce (Not reading bugmail)]]

Can't figure out how to reproduce the failure here. :(