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f270770679
The |slice_qp_detla| reported by the hardware is not credible, which causing the quality scaler cannot work properly,the resolution cannot be adjusted correctly. To fix this issue, this CL implements a bandwidth scaler which is used for adjust resolution, this scaler will be used when QP based quality scaler is not working due to untrusted QP reported by HW AVC encoder. Bug: webrtc:12942 Change-Id: I2fc5f07a5400ec7e5ead2c2c502faee84d7f2a76 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/228860 Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Evan Shrubsole <eshr@google.com> Commit-Queue: Erik Språng <sprang@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35120}
92 lines
3.1 KiB
C++
92 lines
3.1 KiB
C++
/*
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* Copyright 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 RTC_BASE_EXPERIMENTS_ENCODER_INFO_SETTINGS_H_
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#define RTC_BASE_EXPERIMENTS_ENCODER_INFO_SETTINGS_H_
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#include <string>
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#include <vector>
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#include "absl/types/optional.h"
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#include "api/video_codecs/video_encoder.h"
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#include "rtc_base/experiments/field_trial_parser.h"
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namespace webrtc {
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class EncoderInfoSettings {
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public:
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virtual ~EncoderInfoSettings();
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// Bitrate limits per resolution.
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struct BitrateLimit {
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int frame_size_pixels = 0; // The video frame size.
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int min_start_bitrate_bps = 0; // The minimum bitrate to start encoding.
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int min_bitrate_bps = 0; // The minimum bitrate.
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int max_bitrate_bps = 0; // The maximum bitrate.
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};
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absl::optional<int> requested_resolution_alignment() const;
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bool apply_alignment_to_all_simulcast_layers() const {
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return apply_alignment_to_all_simulcast_layers_.Get();
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}
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std::vector<VideoEncoder::ResolutionBitrateLimits> resolution_bitrate_limits()
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const {
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return resolution_bitrate_limits_;
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}
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static std::vector<VideoEncoder::ResolutionBitrateLimits>
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GetDefaultSinglecastBitrateLimits(VideoCodecType codec_type);
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static absl::optional<VideoEncoder::ResolutionBitrateLimits>
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GetDefaultSinglecastBitrateLimitsForResolution(VideoCodecType codec_type,
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int frame_size_pixels);
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static std::vector<VideoEncoder::ResolutionBitrateLimits>
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GetDefaultSinglecastBitrateLimitsWhenQpIsUntrusted();
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static absl::optional<VideoEncoder::ResolutionBitrateLimits>
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GetSinglecastBitrateLimitForResolutionWhenQpIsUntrusted(
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absl::optional<int> frame_size_pixels,
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const std::vector<VideoEncoder::ResolutionBitrateLimits>&
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resolution_bitrate_limits);
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protected:
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explicit EncoderInfoSettings(std::string name);
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private:
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FieldTrialOptional<int> requested_resolution_alignment_;
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FieldTrialFlag apply_alignment_to_all_simulcast_layers_;
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std::vector<VideoEncoder::ResolutionBitrateLimits> resolution_bitrate_limits_;
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};
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// EncoderInfo settings for SimulcastEncoderAdapter.
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class SimulcastEncoderAdapterEncoderInfoSettings : public EncoderInfoSettings {
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public:
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SimulcastEncoderAdapterEncoderInfoSettings();
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~SimulcastEncoderAdapterEncoderInfoSettings() override {}
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};
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// EncoderInfo settings for LibvpxVp8Encoder.
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class LibvpxVp8EncoderInfoSettings : public EncoderInfoSettings {
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public:
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LibvpxVp8EncoderInfoSettings();
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~LibvpxVp8EncoderInfoSettings() override {}
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};
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// EncoderInfo settings for LibvpxVp9Encoder.
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class LibvpxVp9EncoderInfoSettings : public EncoderInfoSettings {
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public:
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LibvpxVp9EncoderInfoSettings();
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~LibvpxVp9EncoderInfoSettings() override {}
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};
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} // namespace webrtc
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#endif // RTC_BASE_EXPERIMENTS_ENCODER_INFO_SETTINGS_H_
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