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4e702169e4
This CL breaks out descriptor specific parts into separate classes. All logic in the newly added classes is just copy pasted from the (previously massive) RtpFrameReferenceFinder with the exception of how frames are being returned, which is now done via return value rather than a callback. Basically, all interesting changes have been made in the RtpFrameReferenceFinder. Bug: webrtc:12221 Change-Id: I5f958d2fbf4b77ba11c3c6c01d8d0d80e325be60 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/195448 Commit-Queue: Philip Eliasson <philipel@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/master@{#32717}
71 lines
2.5 KiB
C++
71 lines
2.5 KiB
C++
/*
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* Copyright (c) 2016 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_RTP_FRAME_REFERENCE_FINDER_H_
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#define MODULES_VIDEO_CODING_RTP_FRAME_REFERENCE_FINDER_H_
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#include <memory>
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#include "modules/video_coding/frame_object.h"
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namespace webrtc {
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namespace video_coding {
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namespace internal {
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class RtpFrameReferenceFinderImpl;
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} // namespace internal
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// A complete frame is a frame which has received all its packets and all its
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// references are known.
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class OnCompleteFrameCallback {
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public:
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virtual ~OnCompleteFrameCallback() {}
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virtual void OnCompleteFrame(std::unique_ptr<EncodedFrame> frame) = 0;
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};
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class RtpFrameReferenceFinder {
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public:
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using ReturnVector = absl::InlinedVector<std::unique_ptr<RtpFrameObject>, 3>;
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explicit RtpFrameReferenceFinder(OnCompleteFrameCallback* frame_callback);
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explicit RtpFrameReferenceFinder(OnCompleteFrameCallback* frame_callback,
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int64_t picture_id_offset);
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~RtpFrameReferenceFinder();
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// Manage this frame until:
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// - We have all information needed to determine its references, after
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// which |frame_callback_| is called with the completed frame, or
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// - We have too many stashed frames (determined by |kMaxStashedFrames|)
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// so we drop this frame, or
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// - It gets cleared by ClearTo, which also means we drop it.
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void ManageFrame(std::unique_ptr<RtpFrameObject> frame);
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// Notifies that padding has been received, which the reference finder
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// might need to calculate the references of a frame.
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void PaddingReceived(uint16_t seq_num);
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// Clear all stashed frames that include packets older than |seq_num|.
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void ClearTo(uint16_t seq_num);
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private:
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void HandOffFrames(ReturnVector frames);
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// How far frames have been cleared out of the buffer by RTP sequence number.
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// A frame will be cleared if it contains a packet with a sequence number
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// older than |cleared_to_seq_num_|.
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int cleared_to_seq_num_ = -1;
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const int64_t picture_id_offset_;
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OnCompleteFrameCallback* frame_callback_;
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std::unique_ptr<internal::RtpFrameReferenceFinderImpl> impl_;
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};
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} // namespace video_coding
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_RTP_FRAME_REFERENCE_FINDER_H_
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