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The purpose of this interface is to allow VideoEncoder to override the bandwidth allocation set by FecController in RtpVideoSender. This CL defines the interface and sends it down to VideoSender. Two upcoming CLs will: 1. Make LibvpxVp8Encoder pass it on to the (injectable) FrameBufferController, where it might be put to good use. 2. Modify RtpVideoSender to respond to the message sent to it via this API. TBR=kwiberg@webrtc.org Bug: webrtc:10769 Change-Id: I2ef82f0ddcde7fd078e32d8aabf6efe43e0f7f8a Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/143962 Commit-Queue: Elad Alon <eladalon@webrtc.org> Reviewed-by: Erik Språng <sprang@webrtc.org> Reviewed-by: Rasmus Brandt <brandtr@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28416}
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
/*
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* Copyright (c) 2017 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_CODECS_MULTIPLEX_INCLUDE_MULTIPLEX_ENCODER_ADAPTER_H_
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#define MODULES_VIDEO_CODING_CODECS_MULTIPLEX_INCLUDE_MULTIPLEX_ENCODER_ADAPTER_H_
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#include <map>
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#include <memory>
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#include <vector>
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#include "api/fec_controller_override.h"
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#include "api/video_codecs/sdp_video_format.h"
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#include "api/video_codecs/video_encoder.h"
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#include "api/video_codecs/video_encoder_factory.h"
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#include "modules/video_coding/codecs/multiplex/multiplex_encoded_image_packer.h"
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#include "modules/video_coding/include/video_codec_interface.h"
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#include "rtc_base/critical_section.h"
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namespace webrtc {
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enum AlphaCodecStream {
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kYUVStream = 0,
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kAXXStream = 1,
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kAlphaCodecStreams = 2,
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};
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class MultiplexEncoderAdapter : public VideoEncoder {
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public:
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// |factory| is not owned and expected to outlive this class.
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MultiplexEncoderAdapter(VideoEncoderFactory* factory,
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const SdpVideoFormat& associated_format,
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bool supports_augmenting_data = false);
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virtual ~MultiplexEncoderAdapter();
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// Implements VideoEncoder
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void SetFecControllerOverride(
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FecControllerOverride* fec_controller_override) override;
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int InitEncode(const VideoCodec* inst,
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const VideoEncoder::Settings& settings) override;
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int Encode(const VideoFrame& input_image,
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const std::vector<VideoFrameType>* frame_types) override;
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int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
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void SetRates(const RateControlParameters& parameters) override;
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int Release() override;
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// TOD(eladalon): Add OnPacketLossRateUpdate, OnRttUpdate and
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// OnLossNotification.
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EncoderInfo GetEncoderInfo() const override;
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EncodedImageCallback::Result OnEncodedImage(
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AlphaCodecStream stream_idx,
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const EncodedImage& encodedImage,
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const CodecSpecificInfo* codecSpecificInfo,
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const RTPFragmentationHeader* fragmentation);
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private:
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// Wrapper class that redirects OnEncodedImage() calls.
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class AdapterEncodedImageCallback;
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VideoEncoderFactory* const factory_;
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const SdpVideoFormat associated_format_;
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std::vector<std::unique_ptr<VideoEncoder>> encoders_;
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std::vector<std::unique_ptr<AdapterEncodedImageCallback>> adapter_callbacks_;
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EncodedImageCallback* encoded_complete_callback_;
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std::map<uint32_t /* timestamp */, MultiplexImage> stashed_images_
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RTC_GUARDED_BY(crit_);
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uint16_t picture_index_ = 0;
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std::vector<uint8_t> multiplex_dummy_planes_;
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int key_frame_interval_;
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EncodedImage combined_image_;
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rtc::CriticalSection crit_;
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const bool supports_augmented_data_;
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int augmenting_data_size_ = 0;
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EncoderInfo encoder_info_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_CODECS_MULTIPLEX_INCLUDE_MULTIPLEX_ENCODER_ADAPTER_H_
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