dd40702357
The goal with this CL is to move implementation details out from the webrtc root (webrtc/video_decoder.h) to simplify the dependency graph. Another goal is to streamline the creation of VideoDecoders in webrtcvideoengine2.cc; it will now have two factories of the same WebRtcVideoDecoderFactory type, one internal and one external. Specifically, this CL: * Removes webrtc::VideoDecoder::DecoderType and use webrtc::VideoCodecType instead. * Removes 'static VideoDecoder* Create(DecoderType codec_type)' and moves the create function to the internal decoder factory instead. * Removes video_decoder.cc. webrtc::VideoDecoder is now just an interface without any static functions. BUG=webrtc:6743 Review-Url: https://codereview.webrtc.org/2521203002 Cr-Commit-Position: refs/heads/master@{#15350}
62 lines
2.0 KiB
C++
62 lines
2.0 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 WEBRTC_MEDIA_ENGINE_VIDEODECODERSOFTWAREFALLBACKWRAPPER_H_
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#define WEBRTC_MEDIA_ENGINE_VIDEODECODERSOFTWAREFALLBACKWRAPPER_H_
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#include <memory>
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#include <string>
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#include "webrtc/video_decoder.h"
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namespace webrtc {
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// Class used to wrap external VideoDecoders to provide a fallback option on
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// software decoding when a hardware decoder fails to decode a stream due to
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// hardware restrictions, such as max resolution.
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class VideoDecoderSoftwareFallbackWrapper : public webrtc::VideoDecoder {
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public:
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VideoDecoderSoftwareFallbackWrapper(VideoCodecType codec_type,
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VideoDecoder* decoder);
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int32_t InitDecode(const VideoCodec* codec_settings,
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int32_t number_of_cores) override;
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int32_t Decode(const EncodedImage& input_image,
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bool missing_frames,
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const RTPFragmentationHeader* fragmentation,
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const CodecSpecificInfo* codec_specific_info,
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int64_t render_time_ms) override;
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int32_t RegisterDecodeCompleteCallback(
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DecodedImageCallback* callback) override;
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int32_t Release() override;
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bool PrefersLateDecoding() const override;
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const char* ImplementationName() const override;
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private:
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bool InitFallbackDecoder();
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const VideoCodecType codec_type_;
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VideoDecoder* const decoder_;
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VideoCodec codec_settings_;
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int32_t number_of_cores_;
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std::string fallback_implementation_name_;
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std::unique_ptr<VideoDecoder> fallback_decoder_;
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DecodedImageCallback* callback_;
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};
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} // namespace webrtc
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#endif // WEBRTC_MEDIA_ENGINE_VIDEODECODERSOFTWAREFALLBACKWRAPPER_H_
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