1579374 - Troubleshooting Information > Media > Enumerate Database fails if 'mediacapabilities' folder doesn't exist yet

Status: VERIFIED FIXED

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

Description

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

Firefox 71.0a1 20190905215710 on Windows 8.1

Menu Help > Troubleshooting Information > Media > button Enumerate Database (added in bug 1573832) fails to show information if 'mediacapabilities' folder doesn't exist yet.

Steps to reproduce:

1. Launch Firefox with a new profile.
2. Open menu Help > Troubleshooting Information.
3. Go to Media.
4. Click 'Enumerate database'.

Actual result:
Some whitespace added below button.

Expected result:
Output similar to the following:

video/av1:
video/vp8:
video/vp9:
video/avc:
video/theora:

From the browser console:
uncaught exception: store error: DirectoryDoesNotExistError("C:\Mozilla\Debugging\Firefox\Profiles\unstable\central\Test-central-en/mediacapabilities")

The folder 'mediacapabilities' gets created if the code added in bug 1530996 runs.

Comment 1

[Alex Chronopoulos [:achronop]]

Thank you for the report, I am looking

Comment 2

[Alex Chronopoulos [:achronop]]

Attachment: Bug 1579374 - Show information when mediacapabilities folder doesn't exist in the profile yet. r?chunmin

When the mediacapabilities folder does not exist catch the exception and print the name of the decoder.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/cda07e85ce9d
Show information when mediacapabilities folder doesn't exist in the profile yet. r=chunmin

Comment 4

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/cda07e85ce9d

Comment 5

[Cristian Fogel [:cfogel]]

Confirmed issue with 71.0a1(2019-09-06) on Windows 10.
Fix verified with 71.0b8 on Windows 10, macOS 10.13.6, Ubuntu 18.04.