Reason for revert:
Breaks Chrome FYI.
peerconnection_unittest calls RTCStatsReport::Create without parameters.
Original issue's description:
> RTCOutboundRTPStreamStats[1] added.
>
> This also adds RTCRTPStreamStats[2] which it derives from. Not all stats
> are supported in this CL, this must be addressed before closing the
> issue.
>
> RTCStatsReport also gets a timestamp and ToString.
>
> [1] https://w3c.github.io/webrtc-stats/#outboundrtpstats-dict*
> [2] https://w3c.github.io/webrtc-stats/#streamstats-dict*
>
> BUG=chromium:627816, chromium:657856, chromium:657854
>
> Committed: https://crrev.com/69e9cb08285f6cbcab547c7a5e6aa668fa6f2d29
> Cr-Commit-Position: refs/heads/master@{#14860}
TBR=hta@webrtc.org,deadbeef@webrtc.org,hbos@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:627816, chromium:657856, chromium:657854
Review-Url: https://codereview.webrtc.org/2465223002
Cr-Commit-Position: refs/heads/master@{#14863}
This will be helpful in unittests to EXPECT_EQ reports. It should be a
useful operator to have outside of testing as well.
BUG=chromium:627816
NOTRY=True
Review-Url: https://codereview.webrtc.org/2441543002
Cr-Commit-Position: refs/heads/master@{#14767}
RTCStatsMemberInterface::Type's kBool and kSequenceBool.
This means that RTCStats-derived classes ("RTCStats-derived
dictionaries"[1]) can contain boolean and sequence of boolean members.
[1] https://w3c.github.io/webrtc-stats/
BUG=chromium:627816
NOTRY=True
Review-Url: https://codereview.webrtc.org/2387343002
Cr-Commit-Position: refs/heads/master@{#14509}
New file structure and targets:
rtc_stats_api
webrtc/api/stats/rtcstats.h
webrtc/api/stats/rtcstats_objects.h
webrtc/api/stats/rtcstatsreport.h
rtc_stats (dep on rtc_stats_api)
webrtc/stats/rtcstats.cc
webrtc/stats/rtcstats_objects.cc
webrtc/stats/rtcstatsreport.cc
libjingle_peerconnection (dep on rtc_stats)
webrtc/api/rtcstatscollector.cc
webrtc/api/rtcstatscollector.h
Placing rtc_stats_api headers in this separate target instead of
libjingle_peerconnection avoids a circular dependency
libjingle_peerconnection -> rtc_stats -> libjingle_peerconnection
Code changes:
PeerConnectionInterface::GetStats(RTCStatsCollectorCallback*) added for
the new stats collection API. Implemented by PeerConnection.
BUG=chromium:627816
Review-Url: https://codereview.webrtc.org/2331373004
Cr-Commit-Position: refs/heads/master@{#14246}
std::string is all we need. const char* is an annoying special case
because they can't be compared with ==. Having two different string
types was a premature optimization.
BUG=chromium:627816
NOTRY=True
Review-Url: https://codereview.webrtc.org/2340303002
Cr-Commit-Position: refs/heads/master@{#14235}
Using a timestamp based on a timer that is monotonically increasing for
the cache, so that cache's freshness can be checked regardless of if
system clock is modified.
Using a system clock for the stats' timestamp, which needs to be
relative to UNIX epoch (Jan 1, 1970, UTC).
This CL removes the dependency on faketiming.h.
BUG=chromium:627816
NOTRY=True
Review-Url: https://codereview.webrtc.org/2299643002
Cr-Commit-Position: refs/heads/master@{#13997}
The old and new getStats are very different. This CL proposes rewriting
the new getStats from scratch with a bottom-up approach, starting with
the fundamental stats classes. This will allow cleaner and more
efficient code that is more aligned with the spec.
RTCStats and subclasses are the equivalent to RTCStats and RTCStats-
-derived dictionaries from the specs[1][2]. The dictionary members are
public member variables of type RTCStatsMember<T>, where T is one of the
supported types. All members derive from RTCStatsMemberInterface and
iteration of members is possible with RTCStats::Members().
The members are not stored in a map for performance and readability.
Type checking is supported with static class variables, kType.
Only the supported member types T are specialized and may be
instantiated, and sequences are supported with std::vector<...>. Type
checking is again supported with static class variables, kType.
RTCStatsReport is the equivalent from the spec[3], and maps RTCStats::id
to RTCStats-objects. RTCStatsReport is reference counted. It and its
contained stats may be destroyed on any thread. When the
RTCStatsCollector is added in a follow-up CL, it will return const
references to the RTCStatsReports. This means copies don't have to be
made for multiple stats observers or when jumping threads. In fact, no
copies of any stats will have to be made in surfacing stats to Blink.
[1] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstats-dictionary
[2] https://w3c.github.io/webrtc-stats/archives/20160526/webrtc-stats.html
[3] https://www.w3.org/TR/2016/WD-webrtc-20160531/#rtcstatsreport-object
This adds the new folder webrtc/stats/, with target rtc_stats and binary
rtc_stats_unittests. Public api headers are placed in webrtc/api/ and
.cc files are placed in webrtc/stats/.
BUG=chromium:627816
Review-Url: https://codereview.webrtc.org/2241093002
Cr-Commit-Position: refs/heads/master@{#13879}
