mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-13 05:40:42 +01:00
45d2234a5c
Bug: webrtc:11999 Change-Id: I94e3a97ebadbf92ca741d750f67fbea5cbd2b66f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/206984 Reviewed-by: Philip Eliasson <philipel@webrtc.org> Commit-Queue: Danil Chapovalov <danilchap@webrtc.org> Cr-Commit-Position: refs/heads/master@{#33237}
87 lines
2.6 KiB
C++
87 lines
2.6 KiB
C++
/*
|
|
* Copyright (c) 2020 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 "modules/video_coding/svc/scalable_video_controller_no_layering.h"
|
|
|
|
#include <utility>
|
|
#include <vector>
|
|
|
|
#include "api/transport/rtp/dependency_descriptor.h"
|
|
#include "rtc_base/checks.h"
|
|
|
|
namespace webrtc {
|
|
|
|
ScalableVideoControllerNoLayering::~ScalableVideoControllerNoLayering() =
|
|
default;
|
|
|
|
ScalableVideoController::StreamLayersConfig
|
|
ScalableVideoControllerNoLayering::StreamConfig() const {
|
|
StreamLayersConfig result;
|
|
result.num_spatial_layers = 1;
|
|
result.num_temporal_layers = 1;
|
|
return result;
|
|
}
|
|
|
|
FrameDependencyStructure
|
|
ScalableVideoControllerNoLayering::DependencyStructure() const {
|
|
FrameDependencyStructure structure;
|
|
structure.num_decode_targets = 1;
|
|
structure.num_chains = 1;
|
|
structure.decode_target_protected_by_chain = {0};
|
|
|
|
FrameDependencyTemplate key_frame;
|
|
key_frame.decode_target_indications = {DecodeTargetIndication::kSwitch};
|
|
key_frame.chain_diffs = {0};
|
|
structure.templates.push_back(key_frame);
|
|
|
|
FrameDependencyTemplate delta_frame;
|
|
delta_frame.decode_target_indications = {DecodeTargetIndication::kSwitch};
|
|
delta_frame.chain_diffs = {1};
|
|
delta_frame.frame_diffs = {1};
|
|
structure.templates.push_back(delta_frame);
|
|
|
|
return structure;
|
|
}
|
|
|
|
std::vector<ScalableVideoController::LayerFrameConfig>
|
|
ScalableVideoControllerNoLayering::NextFrameConfig(bool restart) {
|
|
if (!enabled_) {
|
|
return {};
|
|
}
|
|
std::vector<LayerFrameConfig> result(1);
|
|
if (restart || start_) {
|
|
result[0].Id(0).Keyframe().Update(0);
|
|
} else {
|
|
result[0].Id(0).ReferenceAndUpdate(0);
|
|
}
|
|
start_ = false;
|
|
return result;
|
|
}
|
|
|
|
GenericFrameInfo ScalableVideoControllerNoLayering::OnEncodeDone(
|
|
const LayerFrameConfig& config) {
|
|
RTC_DCHECK_EQ(config.Id(), 0);
|
|
GenericFrameInfo frame_info;
|
|
frame_info.encoder_buffers = config.Buffers();
|
|
if (config.IsKeyframe()) {
|
|
for (auto& buffer : frame_info.encoder_buffers) {
|
|
buffer.referenced = false;
|
|
}
|
|
}
|
|
frame_info.decode_target_indications = {DecodeTargetIndication::kSwitch};
|
|
frame_info.part_of_chain = {true};
|
|
return frame_info;
|
|
}
|
|
|
|
void ScalableVideoControllerNoLayering::OnRatesUpdated(
|
|
const VideoBitrateAllocation& bitrates) {
|
|
enabled_ = bitrates.GetBitrate(0, 0) > 0;
|
|
}
|
|
|
|
} // namespace webrtc
|