Open Bug 1518023 Opened 2 years ago Updated 9 months ago

Certain YouTube videos (avc1.64002a) drop frames with HWA enabled

Categories

(Core :: Audio/Video, defect, P2)

66 Branch
defect

Tracking

()

People

(Reporter: bram.speeckaert, Unassigned)

Details

Attachments

(1 file)

Attached file aboutsupport.txt
User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

Steps to reproduce:

1. Ensure HWA is enabled.
2. Open https://www.youtube.com/watch?v=a5EpNehrqRI (ensure 1080p60 is selected and avc1.64002a codec is being used).
3. Play the video.


Actual results:

Video playback is okay initially, then becomes increasingly choppy for a few seconds, until it finally stops and starts dropping all frames ~5 seconds in. Audio continues playing.

Video playback with HWA disabled is fine.


Expected results:

Smooth video playback regardless of HWA settings.
Summary: Certain YouTube videos (avc1.64002a ) drop frames with HWA enabled → Certain YouTube videos (avc1.64002a) drop frames with HWA enabled
Component: Untriaged → Audio/Video
Product: Firefox → Core

I can reproduce the issue.
Build ID 20190107093040
User Agent Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:66.0) Gecko/20100101 Firefox/66.0

Status: UNCONFIRMED → NEW
Ever confirmed: true
Rank: 15
Priority: -- → P2
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