[tor-bugs] #22548 [Applications/Tor Browser]: Firefox downgrades VP9 videos to VP8 when measured performance is not enough

[Tor Bug Tracker & Wiki]

#22548: Firefox downgrades VP9 videos to VP8 when measured performance is not
enough
--------------------------------------+--------------------------
 Reporter:  cypherpunks               |          Owner:  tbb-team
     Type:  defect                    |         Status:  new
 Priority:  Medium                    |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  tbb-fingerprinting        |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:
--------------------------------------+--------------------------
Changes (by cypherpunks):

 * status:  needs_information => new


Comment:

 Replying to [comment:14 gk]:
 > Replying to [comment:13 cypherpunks]:
 > > Set `media.benchmark.vp9.threshold` to `0` to fix this ticket without
 patching.
 >
 > Thanks for this suggestion.
 This is not only a suggestion, but the result of code analysis.
 > What are the implications of this proposed fix? (We'd need a patch for
 it as well)
 All clients will get better experience and lower traffic, because TBB
 doesn't use `Use hardware acceleration when available` anyway. (Code
 analysis shows that you don't need a patch, `-#include "WebMSample.h"` is
 for cleanup only.)

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22548#comment:15>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online