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Vp8FrameBufferController is currently just a renamed Vp8TemporalLayers, but subsequent CLs will modify Vp8FrameBufferController in ways that are not relevant for Vp8TemporalLayers. Namely: 1. Loss notifications will be added. 2. Packet-loss rate will be tracked. 3. RTT will be tracked. 4. Vp8FrameBufferController will be made injectable. Vp8TemporalLayers is retained in order to: 1. Avoid needlessly changing api/. 2. Place for code shared between DefaultTemporalLayers and ScreenshareLayers. We can remove it in the future (with a proper public announcement). Bug: webrtc:10382 Change-Id: I49ad1b9bc1954d51bb0b5e60361985f1eb12ae9f Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/126045 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Elad Alon <eladalon@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27009}
51 lines
1.8 KiB
C++
51 lines
1.8 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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#ifndef API_VIDEO_CODECS_VP8_TEMPORAL_LAYERS_H_
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#define API_VIDEO_CODECS_VP8_TEMPORAL_LAYERS_H_
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#include <vector>
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#include "api/video_codecs/vp8_frame_buffer_controller.h"
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#include "api/video_codecs/vp8_frame_config.h"
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namespace webrtc {
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// Two different flavors of temporal layers are currently available:
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// kFixedPattern uses a fixed repeating pattern of 1-4 layers.
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// kBitrateDynamic can allocate frames dynamically to 1 or 2 layers, based on
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// the bitrate produced.
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enum class Vp8TemporalLayersType { kFixedPattern, kBitrateDynamic };
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// This interface defines a way of getting the encoder settings needed to
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// realize a temporal layer structure.
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class Vp8TemporalLayers : public Vp8FrameBufferController {
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public:
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~Vp8TemporalLayers() override = default;
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bool SupportsEncoderFrameDropping() const override = 0;
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void OnRatesUpdated(const std::vector<uint32_t>& bitrates_bps,
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int framerate_fps) override = 0;
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bool UpdateConfiguration(Vp8EncoderConfig* cfg) override = 0;
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Vp8FrameConfig UpdateLayerConfig(uint32_t rtp_timestamp) override = 0;
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void OnEncodeDone(uint32_t rtp_timestamp,
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size_t size_bytes,
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bool is_keyframe,
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int qp,
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CodecSpecificInfo* info) override = 0;
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};
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} // namespace webrtc
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#endif // API_VIDEO_CODECS_VP8_TEMPORAL_LAYERS_H_
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