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7e0bd7aaaf
This is a reland of commit a2655449ee
This CL guards H265 header behind RTC_ENABLE_H265.
Original change's description:
> Add HEVC support for h264_packet_buffer.
>
> Renamed to h26x_packet_buffer as it also supports HEVC now. For HEVC,
> start code is added by depacktizer, and remote endpoint must send
> sequence and picture information in-band.
>
> Co-authored-by: Qiujiao Wu <qiujiao.wu@intel.com>
>
> Bug: webrtc:13485
> Change-Id: I321cb223357d8d15da95cec80ec0c3a43c26734e
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/333863
> Reviewed-by: Philip Eliasson <philipel@webrtc.org>
> Commit-Queue: Philip Eliasson <philipel@webrtc.org>
> Cr-Commit-Position: refs/heads/main@{#41739}
Bug: webrtc:13485
Change-Id: I478e0ab88adcef34100670a90b12251ab3c9b623
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/339822
Reviewed-by: Philip Eliasson <philipel@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Commit-Queue: Philip Eliasson <philipel@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#41748}
57 lines
2 KiB
C++
57 lines
2 KiB
C++
/*
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* Copyright (c) 2021 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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#ifndef MODULES_VIDEO_CODING_H26X_PACKET_BUFFER_H_
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#define MODULES_VIDEO_CODING_H26X_PACKET_BUFFER_H_
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#include <array>
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#include <memory>
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#include <vector>
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#include "absl/base/attributes.h"
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#include "absl/types/optional.h"
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#include "modules/video_coding/packet_buffer.h"
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#include "rtc_base/numerics/sequence_number_unwrapper.h"
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namespace webrtc {
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class H26xPacketBuffer {
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public:
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// The H26xPacketBuffer does the same job as the PacketBuffer but for H264 and
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// H265 only. To make it fit in with surronding code the PacketBuffer
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// input/output classes are used.
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using Packet = video_coding::PacketBuffer::Packet;
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using InsertResult = video_coding::PacketBuffer::InsertResult;
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// |h264_idr_only_keyframes_allowed| is ignored if H.265 is used.
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explicit H26xPacketBuffer(bool h264_idr_only_keyframes_allowed);
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ABSL_MUST_USE_RESULT InsertResult
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InsertPacket(std::unique_ptr<Packet> packet);
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private:
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static constexpr int kBufferSize = 2048;
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std::unique_ptr<Packet>& GetPacket(int64_t unwrapped_seq_num);
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bool BeginningOfStream(const Packet& packet) const;
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std::vector<std::unique_ptr<Packet>> FindFrames(int64_t unwrapped_seq_num);
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bool MaybeAssembleFrame(int64_t start_seq_num_unwrapped,
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int64_t end_sequence_number_unwrapped,
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std::vector<std::unique_ptr<Packet>>& packets);
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const bool h264_idr_only_keyframes_allowed_;
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std::array<std::unique_ptr<Packet>, kBufferSize> buffer_;
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absl::optional<int64_t> last_continuous_unwrapped_seq_num_;
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SeqNumUnwrapper<uint16_t> seq_num_unwrapper_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_H26X_PACKET_BUFFER_H_
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