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beabdcb498
This is in preparation for https://webrtc-review.googlesource.com/c/src/+/36340 With these changes we can avoid some strange #ifdefs in the code that uses temporal layers. Bug: webrtc:7925 Change-Id: I472210738ccc9f73812b8863951befeabec56f15 Reviewed-on: https://webrtc-review.googlesource.com/41280 Reviewed-by: Erik Språng <sprang@webrtc.org> Commit-Queue: Anders Carlsson <andersc@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21759}
90 lines
3 KiB
C++
90 lines
3 KiB
C++
/* Copyright (c) 2013 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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/*
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* This file defines classes for doing temporal layers with VP8.
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*/
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#ifndef MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
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#define MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
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#include <set>
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#include <vector>
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#include "modules/video_coding/codecs/vp8/temporal_layers.h"
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#include "api/optional.h"
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namespace webrtc {
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class DefaultTemporalLayers : public TemporalLayers {
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public:
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DefaultTemporalLayers(int number_of_temporal_layers,
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uint8_t initial_tl0_pic_idx);
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virtual ~DefaultTemporalLayers() {}
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// Returns the recommended VP8 encode flags needed. May refresh the decoder
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// and/or update the reference buffers.
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TemporalLayers::FrameConfig UpdateLayerConfig(uint32_t timestamp) override;
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// Update state based on new bitrate target and incoming framerate.
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// Returns the bitrate allocation for the active temporal layers.
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std::vector<uint32_t> OnRatesUpdated(int bitrate_kbps,
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int max_bitrate_kbps,
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int framerate) override;
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bool UpdateConfiguration(Vp8EncoderConfig* cfg) override;
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void PopulateCodecSpecific(bool frame_is_keyframe,
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const TemporalLayers::FrameConfig& tl_config,
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CodecSpecificInfoVP8* vp8_info,
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uint32_t timestamp) override;
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void FrameEncoded(unsigned int size, int qp) override {}
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uint8_t Tl0PicIdx() const override;
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private:
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const size_t num_layers_;
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const std::vector<unsigned int> temporal_ids_;
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const std::vector<bool> temporal_layer_sync_;
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const std::vector<TemporalLayers::FrameConfig> temporal_pattern_;
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uint8_t tl0_pic_idx_;
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uint8_t pattern_idx_;
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bool last_base_layer_sync_;
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rtc::Optional<std::vector<uint32_t>> new_bitrates_kbps_;
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};
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class DefaultTemporalLayersChecker : public TemporalLayersChecker {
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public:
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DefaultTemporalLayersChecker(int number_of_temporal_layers,
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uint8_t initial_tl0_pic_idx);
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bool CheckTemporalConfig(
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bool frame_is_keyframe,
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const TemporalLayers::FrameConfig& frame_config) override;
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private:
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struct BufferState {
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BufferState()
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: is_updated_this_cycle(false), is_keyframe(true), pattern_idx(0) {}
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bool is_updated_this_cycle;
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bool is_keyframe;
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uint8_t pattern_idx;
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};
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const size_t num_layers_;
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std::vector<unsigned int> temporal_ids_;
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const std::vector<std::set<uint8_t>> temporal_dependencies_;
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BufferState last_;
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BufferState arf_;
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BufferState golden_;
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uint8_t pattern_idx_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_CODECS_VP8_DEFAULT_TEMPORAL_LAYERS_H_
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