0a37547033
- Defines stereo codec case, similar to RTX, that adds stereo codec to the SDP negotiation. The underlying codec's payload type is similarly defined by "apt". - If this negotiation is successful, codec name is included in sdp line via "acn". - Adds codec setting initializers for these specific stereo cases. - Introduces new Stereo*Factory classes as optional convenience wrappers that inserts stereo codec to the existing set of supported codecs on demand. This CL is the step 5 for adding alpha channel support over the wire in webrtc. Design Doc: https://goo.gl/sFeSUT Bug: webrtc:7671 Change-Id: Ie12c56c8fcf7934e216135d73af33adec5248f76 Reviewed-on: https://webrtc-review.googlesource.com/22901 Commit-Queue: Niklas Enbom <niklas.enbom@webrtc.org> Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org> Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Cr-Commit-Position: refs/heads/master@{#21210}
79 lines
2.8 KiB
C++
79 lines
2.8 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_STEREO_INCLUDE_STEREO_ENCODER_ADAPTER_H_
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#define MODULES_VIDEO_CODING_CODECS_STEREO_INCLUDE_STEREO_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/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/include/video_codec_interface.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 StereoEncoderAdapter : public VideoEncoder {
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public:
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// |factory| is not owned and expected to outlive this class' lifetime.
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explicit StereoEncoderAdapter(VideoEncoderFactory* factory,
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const SdpVideoFormat& associated_format);
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virtual ~StereoEncoderAdapter();
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// Implements VideoEncoder
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int InitEncode(const VideoCodec* inst,
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int number_of_cores,
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size_t max_payload_size) override;
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int Encode(const VideoFrame& input_image,
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const CodecSpecificInfo* codec_specific_info,
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const std::vector<FrameType>* frame_types) override;
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int RegisterEncodeCompleteCallback(EncodedImageCallback* callback) override;
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int SetChannelParameters(uint32_t packet_loss, int64_t rtt) override;
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int SetRateAllocation(const BitrateAllocation& bitrate,
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uint32_t new_framerate) override;
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int Release() override;
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const char* ImplementationName() 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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// Holds the encoded image info.
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struct ImageStereoInfo;
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std::map<uint32_t /* timestamp */, ImageStereoInfo> image_stereo_info_;
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uint16_t picture_index_ = 0;
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std::vector<uint8_t> stereo_dummy_planes_;
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};
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} // namespace webrtc
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#endif // MODULES_VIDEO_CODING_CODECS_STEREO_INCLUDE_STEREO_ENCODER_ADAPTER_H_
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