webrtc_m130/media/base/video_source_base.cc
Tommi 816134a8aa Reland "Fix race between enabled() and set_enabled() in VideoTrack."
This reverts commit 096ad02c02b4bc6c046282b8793ef84d041dd0d8.

Reason for revert: Including a fix for the test issue.

Original change's description:
> Revert "Fix race between enabled() and set_enabled() in VideoTrack."
>
> This reverts commit 5ffefe9d2d743c66f8a8bcbc5ad9662a3138840a.
>
> Reason for revert: Breaks Chromium Android browser tests on fyi bots.
>
> Original change's description:
> > Fix race between enabled() and set_enabled() in VideoTrack.
> >
> > Along the way I introduced VideoSourceBaseGuarded, which is equivalent
> > to VideoSourceBase except that it applies thread checks. I found that
> > it's easy to use VideoSourceBase incorrectly and in fact there appear
> > to be tests that do this.
> >
> > I made the source object const in VideoTrack, as it already was in
> > AudioTrack, and that allowed for making the GetSource() accessors
> > bypass the proxy thread hop and give the caller direct access.
> >
> > Bug: webrtc:12773, b/188139639, webrtc:12780
> > Change-Id: I022175c4239a1306ef54059c131d81411d5124fe
> > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/219160
> > Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> > Reviewed-by: Andrey Logvin <landrey@webrtc.org>
> > Commit-Queue: Tommi <tommi@webrtc.org>
> > Cr-Commit-Position: refs/heads/master@{#34096}
>
> TBR=mbonadei@webrtc.org,tommi@webrtc.org,landrey@webrtc.org,webrtc-scoped@luci-project-accounts.iam.gserviceaccount.com
>
> Change-Id: I16323d459c76eb6a87cc602a0048f6ee01c81626
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: webrtc:12773
> Bug: b/188139639
> Bug: webrtc:12780
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/219637
> Reviewed-by: Evan Shrubsole <eshr@google.com>
> Commit-Queue: Evan Shrubsole <eshr@google.com>
> Cr-Commit-Position: refs/heads/master@{#34101}

# Not skipping CQ checks because this is a reland.

Bug: webrtc:12773
Bug: b/188139639
Bug: webrtc:12780
Change-Id: Ib35fe15a6c43de8f286d60aff02b19df1ab76925
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/219639
Reviewed-by: Tommi <tommi@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Andrey Logvin <landrey@webrtc.org>
Reviewed-by: Evan Shrubsole <eshr@google.com>
Commit-Queue: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#34104}
2021-05-24 16:17:35 +00:00

105 lines
3.1 KiB
C++

/*
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "media/base/video_source_base.h"
#include <algorithm>
#include "absl/algorithm/container.h"
#include "rtc_base/checks.h"
namespace rtc {
VideoSourceBase::VideoSourceBase() = default;
VideoSourceBase::~VideoSourceBase() = default;
void VideoSourceBase::AddOrUpdateSink(
VideoSinkInterface<webrtc::VideoFrame>* sink,
const VideoSinkWants& wants) {
RTC_DCHECK(sink != nullptr);
SinkPair* sink_pair = FindSinkPair(sink);
if (!sink_pair) {
sinks_.push_back(SinkPair(sink, wants));
} else {
sink_pair->wants = wants;
}
}
void VideoSourceBase::RemoveSink(VideoSinkInterface<webrtc::VideoFrame>* sink) {
RTC_DCHECK(sink != nullptr);
RTC_DCHECK(FindSinkPair(sink));
sinks_.erase(std::remove_if(sinks_.begin(), sinks_.end(),
[sink](const SinkPair& sink_pair) {
return sink_pair.sink == sink;
}),
sinks_.end());
}
VideoSourceBase::SinkPair* VideoSourceBase::FindSinkPair(
const VideoSinkInterface<webrtc::VideoFrame>* sink) {
auto sink_pair_it = absl::c_find_if(
sinks_,
[sink](const SinkPair& sink_pair) { return sink_pair.sink == sink; });
if (sink_pair_it != sinks_.end()) {
return &*sink_pair_it;
}
return nullptr;
}
VideoSourceBaseGuarded::VideoSourceBaseGuarded() = default;
VideoSourceBaseGuarded::~VideoSourceBaseGuarded() = default;
void VideoSourceBaseGuarded::AddOrUpdateSink(
VideoSinkInterface<webrtc::VideoFrame>* sink,
const VideoSinkWants& wants) {
RTC_DCHECK_RUN_ON(&source_sequence_);
RTC_DCHECK(sink != nullptr);
SinkPair* sink_pair = FindSinkPair(sink);
if (!sink_pair) {
sinks_.push_back(SinkPair(sink, wants));
} else {
sink_pair->wants = wants;
}
}
void VideoSourceBaseGuarded::RemoveSink(
VideoSinkInterface<webrtc::VideoFrame>* sink) {
RTC_DCHECK_RUN_ON(&source_sequence_);
RTC_DCHECK(sink != nullptr);
RTC_DCHECK(FindSinkPair(sink));
sinks_.erase(std::remove_if(sinks_.begin(), sinks_.end(),
[sink](const SinkPair& sink_pair) {
return sink_pair.sink == sink;
}),
sinks_.end());
}
VideoSourceBaseGuarded::SinkPair* VideoSourceBaseGuarded::FindSinkPair(
const VideoSinkInterface<webrtc::VideoFrame>* sink) {
RTC_DCHECK_RUN_ON(&source_sequence_);
auto sink_pair_it = absl::c_find_if(
sinks_,
[sink](const SinkPair& sink_pair) { return sink_pair.sink == sink; });
if (sink_pair_it != sinks_.end()) {
return &*sink_pair_it;
}
return nullptr;
}
const std::vector<VideoSourceBaseGuarded::SinkPair>&
VideoSourceBaseGuarded::sink_pairs() const {
RTC_DCHECK_RUN_ON(&source_sequence_);
return sinks_;
}
} // namespace rtc