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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 00:47:55 +0000 |
commit | 26a029d407be480d791972afb5975cf62c9360a6 (patch) | |
tree | f435a8308119effd964b339f76abb83a57c29483 /third_party/libwebrtc/api/rtp_packet_infos.h | |
parent | Initial commit. (diff) | |
download | firefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz firefox-26a029d407be480d791972afb5975cf62c9360a6.zip |
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/libwebrtc/api/rtp_packet_infos.h')
-rw-r--r-- | third_party/libwebrtc/api/rtp_packet_infos.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/rtp_packet_infos.h b/third_party/libwebrtc/api/rtp_packet_infos.h new file mode 100644 index 0000000000..7445729fbb --- /dev/null +++ b/third_party/libwebrtc/api/rtp_packet_infos.h @@ -0,0 +1,131 @@ +/* + * Copyright (c) 2019 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. + */ + +#ifndef API_RTP_PACKET_INFOS_H_ +#define API_RTP_PACKET_INFOS_H_ + +#include <cstdint> +#include <utility> +#include <vector> + +#include "api/make_ref_counted.h" +#include "api/ref_counted_base.h" +#include "api/rtp_packet_info.h" +#include "api/scoped_refptr.h" +#include "rtc_base/system/rtc_export.h" + +namespace webrtc { + +// Semi-immutable structure to hold information about packets used to assemble +// an audio or video frame. Uses internal reference counting to make it very +// cheap to copy. +// +// We should ideally just use `std::vector<RtpPacketInfo>` and have it +// `std::move()`-ed as the per-packet information is transferred from one object +// to another. But moving the info, instead of copying it, is not easily done +// for the current video code. +class RTC_EXPORT RtpPacketInfos { + public: + using vector_type = std::vector<RtpPacketInfo>; + + using value_type = vector_type::value_type; + using size_type = vector_type::size_type; + using difference_type = vector_type::difference_type; + using const_reference = vector_type::const_reference; + using const_pointer = vector_type::const_pointer; + using const_iterator = vector_type::const_iterator; + using const_reverse_iterator = vector_type::const_reverse_iterator; + + using reference = const_reference; + using pointer = const_pointer; + using iterator = const_iterator; + using reverse_iterator = const_reverse_iterator; + + RtpPacketInfos() {} + explicit RtpPacketInfos(const vector_type& entries) + : data_(Data::Create(entries)) {} + + explicit RtpPacketInfos(vector_type&& entries) + : data_(Data::Create(std::move(entries))) {} + + RtpPacketInfos(const RtpPacketInfos& other) = default; + RtpPacketInfos(RtpPacketInfos&& other) = default; + RtpPacketInfos& operator=(const RtpPacketInfos& other) = default; + RtpPacketInfos& operator=(RtpPacketInfos&& other) = default; + + const_reference operator[](size_type pos) const { return entries()[pos]; } + + const_reference at(size_type pos) const { return entries().at(pos); } + const_reference front() const { return entries().front(); } + const_reference back() const { return entries().back(); } + + const_iterator begin() const { return entries().begin(); } + const_iterator end() const { return entries().end(); } + const_reverse_iterator rbegin() const { return entries().rbegin(); } + const_reverse_iterator rend() const { return entries().rend(); } + + const_iterator cbegin() const { return entries().cbegin(); } + const_iterator cend() const { return entries().cend(); } + const_reverse_iterator crbegin() const { return entries().crbegin(); } + const_reverse_iterator crend() const { return entries().crend(); } + + bool empty() const { return entries().empty(); } + size_type size() const { return entries().size(); } + + private: + class Data final : public rtc::RefCountedNonVirtual<Data> { + public: + static rtc::scoped_refptr<Data> Create(const vector_type& entries) { + // Performance optimization for the empty case. + if (entries.empty()) { + return nullptr; + } + + return rtc::make_ref_counted<Data>(entries); + } + + static rtc::scoped_refptr<Data> Create(vector_type&& entries) { + // Performance optimization for the empty case. + if (entries.empty()) { + return nullptr; + } + + return rtc::make_ref_counted<Data>(std::move(entries)); + } + + const vector_type& entries() const { return entries_; } + + explicit Data(const vector_type& entries) : entries_(entries) {} + explicit Data(vector_type&& entries) : entries_(std::move(entries)) {} + ~Data() = default; + + private: + const vector_type entries_; + }; + + static const vector_type& empty_entries() { + static const vector_type& value = *new vector_type(); + return value; + } + + const vector_type& entries() const { + if (data_ != nullptr) { + return data_->entries(); + } else { + return empty_entries(); + } + } + + rtc::scoped_refptr<Data> data_; +}; + +} // namespace webrtc + +#endif // API_RTP_PACKET_INFOS_H_ |