STR:

1. Start with media.ffmpeg.vaapi.enabled = true from terminal on Ubuntu 23.04.
2. Play videos with codec supported by HW decoding.

On startup and every time a video plays, the terminal outputs:

libva info: VA-API version 1.17.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/r600_drv_video.so
libva info: Found init function __vaDriverInit_1_17
libva info: va_openDriver() returns 0

Regression window:
https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=add572d6012047244d022436e0b5c578b3dd7cf7&tochange=fb443d9a5f9cfaa17acc81c25473d7093d5cf696

Possibly regressed by Bug 1751987.

:stransky, since you are the author of the regressor, bug 1751987, could you take a look?

For more information, please visit BugBot documentation.

That comes from libva which prints that to stdout when the library is initialized. So anytime we open and init the library we see it.

Upstream libva issue:
https://github.com/intel/libva/issues/538

Rejected pull request to change the default verbosity due to Firefox initializing libva for every video causing excessive logging:
https://github.com/intel/libva/pull/564

Workaround is to add the environment variable LIBVA_MESSAGING_LEVEL=1 (0 - silent, 1 - errors, 2 - info (default)).

We could enable LIBVA_MESSAGING_LEVEL if logging is enabled and disable that otherwise.

Set release status flags based on info from the regressing bug 1751987

The severity field is not set for this bug.
:jimm, could you have a look please?

For more information, please visit BugBot documentation.

https://hg.mozilla.org/mozilla-central/rev/dd8ef46f5224

The patch landed in nightly and beta is affected.
:stransky, is this bug important enough to require an uplift?

• If yes, please nominate the patch for beta approval.
• If no, please set status-firefox117 to wontfix.

For more information, please visit BugBot documentation.

Minor fix, no need to uplift.