mirror of
https://github.com/mollyim/webrtc.git
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9aeaa25d4c
* Merge in branch-heads/4103 (M83) * Disable legacy DTLS protocols (before 1.2) * Update sdk/objc modifications for upstream changes * Update ios and mac deployment targets Co-authored-by: Jim Gustafson <jim@signal.org>
100 lines
2.9 KiB
C++
100 lines
2.9 KiB
C++
/*
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* Copyright (c) 2018 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 "modules/rtp_rtcp/source/rtp_generic_frame_descriptor.h"
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#include <cstdint>
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#include "rtc_base/checks.h"
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namespace webrtc {
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constexpr int RtpGenericFrameDescriptor::kMaxNumFrameDependencies;
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constexpr int RtpGenericFrameDescriptor::kMaxTemporalLayers;
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constexpr int RtpGenericFrameDescriptor::kMaxSpatialLayers;
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RtpGenericFrameDescriptor::RtpGenericFrameDescriptor() = default;
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RtpGenericFrameDescriptor::RtpGenericFrameDescriptor(
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const RtpGenericFrameDescriptor&) = default;
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RtpGenericFrameDescriptor::~RtpGenericFrameDescriptor() = default;
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int RtpGenericFrameDescriptor::TemporalLayer() const {
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RTC_DCHECK(FirstPacketInSubFrame());
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return temporal_layer_;
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}
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void RtpGenericFrameDescriptor::SetTemporalLayer(int temporal_layer) {
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RTC_DCHECK_GE(temporal_layer, 0);
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RTC_DCHECK_LT(temporal_layer, kMaxTemporalLayers);
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temporal_layer_ = temporal_layer;
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}
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int RtpGenericFrameDescriptor::SpatialLayer() const {
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RTC_DCHECK(FirstPacketInSubFrame());
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int layer = 0;
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uint8_t spatial_layers = spatial_layers_;
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while (spatial_layers_ != 0 && !(spatial_layers & 1)) {
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spatial_layers >>= 1;
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layer++;
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}
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return layer;
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}
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uint8_t RtpGenericFrameDescriptor::SpatialLayersBitmask() const {
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RTC_DCHECK(FirstPacketInSubFrame());
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return spatial_layers_;
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}
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void RtpGenericFrameDescriptor::SetSpatialLayersBitmask(
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uint8_t spatial_layers) {
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RTC_DCHECK(FirstPacketInSubFrame());
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spatial_layers_ = spatial_layers;
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}
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void RtpGenericFrameDescriptor::SetResolution(int width, int height) {
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RTC_DCHECK(FirstPacketInSubFrame());
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RTC_DCHECK_GE(width, 0);
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RTC_DCHECK_LE(width, 0xFFFF);
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RTC_DCHECK_GE(height, 0);
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RTC_DCHECK_LE(height, 0xFFFF);
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width_ = width;
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height_ = height;
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}
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uint16_t RtpGenericFrameDescriptor::FrameId() const {
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RTC_DCHECK(FirstPacketInSubFrame());
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return frame_id_;
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}
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void RtpGenericFrameDescriptor::SetFrameId(uint16_t frame_id) {
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RTC_DCHECK(FirstPacketInSubFrame());
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frame_id_ = frame_id;
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}
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rtc::ArrayView<const uint16_t>
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RtpGenericFrameDescriptor::FrameDependenciesDiffs() const {
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RTC_DCHECK(FirstPacketInSubFrame());
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return rtc::MakeArrayView(frame_deps_id_diffs_, num_frame_deps_);
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}
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bool RtpGenericFrameDescriptor::AddFrameDependencyDiff(uint16_t fdiff) {
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RTC_DCHECK(FirstPacketInSubFrame());
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if (num_frame_deps_ == kMaxNumFrameDependencies)
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return false;
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if (fdiff == 0)
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return false;
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RTC_DCHECK_LT(fdiff, 1 << 14);
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RTC_DCHECK_GT(fdiff, 0);
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frame_deps_id_diffs_[num_frame_deps_] = fdiff;
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num_frame_deps_++;
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return true;
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}
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} // namespace webrtc
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