Bug 1846703 - Backport a single revision from ffmpeg into our vendored copy, to fix the build with recent binutils. r=glandium, a=RyanVM

Because this library is a rather complex, manually trimmed, subset of ffmpeg,
this doesn't use updatebot. We're currently investigating moving to it to at
least fix some manual work needed, but that hasn't happened yet. In lieu of
adding the new patch to a yaml file, I'm modified the Mozilla-specific README.

Differential Revision: https://phabricator.services.mozilla.com/D189751

Cherry-pick of upstream libvpx commits:
https://chromium.googlesource.com/webm/libvpx/+/af6dedd715f4307669366944cca6e0417b290282
https://chromium.googlesource.com/webm/libvpx/+/3fbd1dca6a4d2dad332a2110d646e4ffef36d590

Differential Revision: https://phabricator.services.mozilla.com/D189428

https://github.com/webmproject/libwebp/commit/95ea5226c870449522240ccff26f0b006037c520

Differential Revision: https://phabricator.services.mozilla.com/D188066

Backport of:
https://chromium.googlesource.com/webm/libwebp.git/+/2af26267cdfcb63a88e5c74a85927a12d6ca1d76

Differential Revision: https://phabricator.services.mozilla.com/D187950

Depends on D185292

Differential Revision: https://phabricator.services.mozilla.com/D185293

Differential Revision: https://phabricator.services.mozilla.com/D185292

Depends on D184920

Differential Revision: https://phabricator.services.mozilla.com/D184921

Differential Revision: https://phabricator.services.mozilla.com/D184920

Depends on D184568

Differential Revision: https://phabricator.services.mozilla.com/D184569

Depends on D184567

Differential Revision: https://phabricator.services.mozilla.com/D184568

Differential Revision: https://phabricator.services.mozilla.com/D184567

Bug 1842933 - Use NEON_FLAGS instead of VPX_ASFLAGS for libaom neon code. r=firefox-build-system-reviewers,andi a=RyanVM

Back when libaom was added, VPX_ASFLAGS was more or less the only
variable that had the right set of flags for NEON support, which
justified its use. However, it's not set when building against system
libvpx.

Bug 1791482 improved things, though, and VPX_ASFLAGS, as far as NEON is
concerned, is now only re-exporting NEON_FLAGS, with the same caveat that
VPX_ASFLAGS is empty when building against system libvpx.

So we should use NEON_FLAGS instead of VPX_ASFLAGS.

Differential Revision: https://phabricator.services.mozilla.com/D183310

Differential Revision: https://phabricator.services.mozilla.com/D174701

Differential Revision: https://phabricator.services.mozilla.com/D178591

Bug 1833633 - Reapply cubeb patch to prefer OpenSL ES on oldder Android versions. r=cubeb-reviewers,kinetik

Depends on D178320

Differential Revision: https://phabricator.services.mozilla.com/D178321

Differential Revision: https://phabricator.services.mozilla.com/D178320

Apply local patches by running `./mach vendor media/libvpx/moz.yaml
--patch-mode-only`

Differential Revision: https://phabricator.services.mozilla.com/D177514

Update to 19ec57e14938bcb12d87123b7c369212f19792eb by running `./mach
vendor media/libvpx/moz.yaml --patch-mode=none`

Differential Revision: https://phabricator.services.mozilla.com/D177513

Gecko doesn't support msvc anymore.

Differential Revision: https://phabricator.services.mozilla.com/D177518

Bug 1832219 - Define _USE_MATH_DEFINES and M_PI on both regular and mingw Windows builds. r=firefox-build-system-reviewers,cubeb-reviewers,glandium,padenot

Without _USE_MATH_DEFINES, Windows' math.h doesn't define M_PI. Since _USE_MATH_DEFINES is defined globally, redundant definitions of _USE_MATH_DEFINES in moz.build files can be removed.

obj-build/dist/include/mozilla/ServoStyleConstsInlines.h:396:32: error: use of undeclared identifier 'M_PI'
obj-build/dist/include/mozilla/StaticPrefList_apz.h:133:22: error: use of undeclared identifier 'M_PI'
obj-build/dist/include/mozilla/gfx/PathHelpers.h:139:33: error: use of undeclared identifier 'M_PI'

Differential Revision: https://phabricator.services.mozilla.com/D177590

Bug 1828517 (MOZ) - Simplify RTCStatsTimestampMaker conversions with a new RTCStatsTimestamp class. r=webrtc-reviewers,dbaker

This adds a new helper class that has the same conversion state as
RTCStatsTimestampMaker, for conversions on any thread.
It has From* and To* methods for all the time bases we care about, and stores
its time internally in mozilla::TimeStamp.

This avoids having to implement a conversion method for every permutation of
time base pairs in RTCStatsTimestampMaker.

Differential Revision: https://phabricator.services.mozilla.com/D177539

Bug 1828517 (MOZ) - Improve rtp packet delivery through MediaPipeline and conduits. r=webrtc-reviewers,dbaker

With earlier fixes to upstream's PacketReceiver::DeliverPacket, received rtp
packets were parsed twice:
- In MediaPipeline, with the proper extension map in order to extract the header
  for filtering.
- In conduits, with no extension map.

The conduits would therefore not parse any rtp header extensions, leading to
problems later on as data from the extensions would not get exposed to
libwebrtc or js.

This patch removes the rtp packet parsing in the conduits and moves any setting
of metadata over to MediaPipeline so there is a single point responsible for
parsing rtp packets. The packet is then transferred verbatim via the conduits to
libwebrtc.

Differential Revision: https://phabricator.services.mozilla.com/D177536

Differential Revision: https://phabricator.services.mozilla.com/D176764

Backed out changeset 90557ee17ec1 (bug 1332163)
Backed out changeset 0895ae05973d (bug 1332163)

Differential Revision: https://phabricator.services.mozilla.com/D176764

Involves substantial refactoring to make most access by-value (or through
functional-style in-place modifications) for safety.

Differential Revision: https://phabricator.services.mozilla.com/D176423

Depends on D176530

Differential Revision: https://phabricator.services.mozilla.com/D176531

Differential Revision: https://phabricator.services.mozilla.com/D176530

The upstream repo now is https://gitlab.xiph.org/xiph/opus

Differential Revision: https://phabricator.services.mozilla.com/D176483

Differential Revision: https://phabricator.services.mozilla.com/D176104

Upstream removed:
ReceiveStreamInterface::transport_cc
ReceiveStreamInterface::SetTransportCc

Differential Revision: https://phabricator.services.mozilla.com/D175875

Differential Revision: https://phabricator.services.mozilla.com/D175874

Backed out changeset 3200eba0be97 (bug 1828894)
Backed out changeset 6426d03a45ce (bug 1828894)

Depends on D175874

Differential Revision: https://phabricator.services.mozilla.com/D175875

Differential Revision: https://phabricator.services.mozilla.com/D175874

Differential Revision: https://phabricator.services.mozilla.com/D175733

Differential Revision: https://phabricator.services.mozilla.com/D174878

Differential Revision: https://phabricator.services.mozilla.com/D174664