3dde450f02
Bug: webrtc:10427 Change-Id: I5e7182fc8932943adc3e5f147be51b0b5df93172 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/127882 Reviewed-by: Åsa Persson <asapersson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Jonas Oreland <jonaso@webrtc.org> Reviewed-by: Philip Eliasson <philipel@webrtc.org> Commit-Queue: Rasmus Brandt <brandtr@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27233}
73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "video/encoder_key_frame_callback.h"
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#include "absl/types/optional.h"
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#include "rtc_base/checks.h"
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#include "rtc_base/experiments/keyframe_interval_settings.h"
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namespace webrtc {
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namespace {
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constexpr int kMinKeyframeSendIntervalMs = 300;
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} // namespace
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EncoderKeyFrameCallback::EncoderKeyFrameCallback(
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Clock* clock,
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const std::vector<uint32_t>& ssrcs,
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VideoStreamEncoderInterface* encoder)
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: clock_(clock),
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ssrcs_(ssrcs),
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video_stream_encoder_(encoder),
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time_last_intra_request_ms_(-1),
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min_keyframe_send_interval_ms_(
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KeyframeIntervalSettings::ParseFromFieldTrials()
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.MinKeyframeSendIntervalMs()
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.value_or(kMinKeyframeSendIntervalMs)) {
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RTC_DCHECK(!ssrcs.empty());
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}
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bool EncoderKeyFrameCallback::HasSsrc(uint32_t ssrc) {
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for (uint32_t registered_ssrc : ssrcs_) {
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if (registered_ssrc == ssrc) {
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return true;
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}
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}
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return false;
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}
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void EncoderKeyFrameCallback::OnReceivedIntraFrameRequest(uint32_t ssrc) {
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RTC_DCHECK(HasSsrc(ssrc));
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{
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int64_t now_ms = clock_->TimeInMilliseconds();
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rtc::CritScope lock(&crit_);
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if (time_last_intra_request_ms_ + min_keyframe_send_interval_ms_ > now_ms) {
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return;
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}
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time_last_intra_request_ms_ = now_ms;
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}
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// Always produce key frame for all streams.
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video_stream_encoder_->SendKeyFrame();
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}
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void EncoderKeyFrameCallback::OnKeyFrameRequested(uint64_t channel_id) {
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if (channel_id != ssrcs_[0]) {
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RTC_LOG(LS_INFO) << "Key frame request on unknown channel id " << channel_id
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<< " expected " << ssrcs_[0];
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return;
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}
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video_stream_encoder_->SendKeyFrame();
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}
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} // namespace webrtc
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