Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 77 insertions, 0 deletions

diff --git a/third_party/libwebrtc/video/task_queue_frame_decode_scheduler.cc b/third_party/libwebrtc/video/task_queue_frame_decode_scheduler.cc
new file mode 100644
index 0000000000..6dd7b47f17
--- /dev/null
+++ b/third_party/libwebrtc/video/task_queue_frame_decode_scheduler.cc
@@ -0,0 +1,77 @@
+/*
+ *  Copyright (c) 2022 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 "video/task_queue_frame_decode_scheduler.h"
+
+#include <algorithm>
+#include <utility>
+
+#include "api/sequence_checker.h"
+#include "api/task_queue/task_queue_base.h"
+#include "rtc_base/checks.h"
+
+namespace webrtc {
+
+TaskQueueFrameDecodeScheduler::TaskQueueFrameDecodeScheduler(
+    Clock* clock,
+    TaskQueueBase* const bookkeeping_queue)
+    : clock_(clock), bookkeeping_queue_(bookkeeping_queue) {
+  RTC_DCHECK(clock_);
+  RTC_DCHECK(bookkeeping_queue_);
+}
+
+TaskQueueFrameDecodeScheduler::~TaskQueueFrameDecodeScheduler() {
+  RTC_DCHECK(stopped_);
+  RTC_DCHECK(!scheduled_rtp_) << "Outstanding scheduled rtp=" << *scheduled_rtp_
+                              << ". Call CancelOutstanding before destruction.";
+}
+
+void TaskQueueFrameDecodeScheduler::ScheduleFrame(
+    uint32_t rtp,
+    FrameDecodeTiming::FrameSchedule schedule,
+    FrameReleaseCallback cb) {
+  // Mozilla modification, until https://bugs.webrtc.org/14944 is fixed
+  //RTC_DCHECK(!stopped_) << "Can not schedule frames after stopped.";
+  RTC_DCHECK(!scheduled_rtp_.has_value())
+      << "Can not schedule two frames for release at the same time.";
+  RTC_DCHECK(cb);
+  scheduled_rtp_ = rtp;
+
+  TimeDelta wait = std::max(
+      TimeDelta::Zero(), schedule.latest_decode_time - clock_->CurrentTime());
+  bookkeeping_queue_->PostDelayedHighPrecisionTask(
+      SafeTask(task_safety_.flag(),
+               [this, rtp, schedule, cb = std::move(cb)]() mutable {
+                 RTC_DCHECK_RUN_ON(bookkeeping_queue_);
+                 // If the next frame rtp has changed since this task was
+                 // this scheduled release should be skipped.
+                 if (scheduled_rtp_ != rtp)
+                   return;
+                 scheduled_rtp_ = absl::nullopt;
+                 std::move(cb)(rtp, schedule.render_time);
+               }),
+      wait);
+}
+
+void TaskQueueFrameDecodeScheduler::CancelOutstanding() {
+  scheduled_rtp_ = absl::nullopt;
+}
+
+absl::optional<uint32_t>
+TaskQueueFrameDecodeScheduler::ScheduledRtpTimestamp() {
+  return scheduled_rtp_;
+}
+
+void TaskQueueFrameDecodeScheduler::Stop() {
+  CancelOutstanding();
+  stopped_ = true;
+}
+
+}  // namespace webrtc