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

Tor Bug Tracker & Wiki blackhole at torproject.org
Mon Jun 12 09:49:12 UTC 2017


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

 Replying to [comment:8 gk]:
 > Thanks for digging out the Mozilla bugs. Actually, this ticket is not
 `tbb-easy` as it is not even clear how we should solve this problem.
 The same way as on Android. See patch from that ticket, we need
 `IsVP9DecodeFast()` be always `true` for all platforms, e.g. by
 {{{
 -#ifdef MOZ_WIDGET_ANDROID
 +#ifdef 1
 }}}
 and also
 {{{
 -#ifndef MOZ_WIDGET_ANDROID
 -#include "WebMSample.h"
 -#endif
 }}}

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22548#comment:9>
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