| Ben Murdoch | eb525c5 | 2013-07-10 11:40:50 +0100 | [diff] [blame] | 1 | // Copyright 2013 The Chromium Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef CONTENT_RENDERER_MEDIA_RTC_ENCODING_VIDEO_CAPTURER_H_ |
| 6 | #define CONTENT_RENDERER_MEDIA_RTC_ENCODING_VIDEO_CAPTURER_H_ |
| 7 | |
| 8 | #include "base/memory/ref_counted.h" |
| 9 | #include "media/video/encoded_video_source.h" |
| 10 | #include "media/video/video_encode_types.h" |
| 11 | #include "third_party/libjingle/source/talk/media/webrtc/webrtcvie.h" |
| 12 | |
| 13 | namespace content { |
| 14 | |
| 15 | // Class to represent an encoding capable video capture interface for the |
| 16 | // WebRTC component. This class expects to be registered as an encoder with |
| 17 | // an internal source to the WebRTC stack and will not be able to function as |
| 18 | // an encoder for uncompressed video frames. |
| 19 | class RtcEncodingVideoCapturer : public webrtc::VideoEncoder { |
| 20 | public: |
| 21 | RtcEncodingVideoCapturer(media::EncodedVideoSource* encoded_video_source, |
| 22 | webrtc::VideoCodecType codec_type); |
| 23 | virtual ~RtcEncodingVideoCapturer(); |
| 24 | |
| 25 | // webrtc::VideoEncoder implementation. |
| 26 | virtual int32_t InitEncode(const webrtc::VideoCodec* codecSettings, |
| 27 | int32_t numberOfCores, |
| 28 | uint32_t maxPayloadSize) OVERRIDE; |
| 29 | virtual int32_t Encode( |
| 30 | const webrtc::I420VideoFrame& /* inputImage */, |
| 31 | const webrtc::CodecSpecificInfo* codecSpecificInfo, |
| 32 | const std::vector<webrtc::VideoFrameType>* frame_types) OVERRIDE; |
| 33 | virtual int32_t RegisterEncodeCompleteCallback( |
| 34 | webrtc::EncodedImageCallback* callback) OVERRIDE; |
| 35 | virtual int32_t Release() OVERRIDE; |
| 36 | virtual int32_t SetChannelParameters(uint32_t /* packetLoss */, |
| 37 | int rtt_in_ms) OVERRIDE; |
| 38 | virtual int32_t SetRates(uint32_t newBitRate, |
| 39 | uint32_t frameRate) OVERRIDE; |
| 40 | private: |
| 41 | // Forward declaration for private implementation to represent the |
| 42 | // encoded video source client; |
| 43 | class EncodedVideoSourceClient; |
| 44 | scoped_ptr<EncodedVideoSourceClient> encoded_video_source_client_; |
| 45 | |
| 46 | // Pointer to the underlying EncodedVideoSource object. It is guaranteed to |
| 47 | // outlive the RtcEncodingVideoCapturer. |
| 48 | media::EncodedVideoSource* encoded_video_source_; |
| 49 | webrtc::VideoCodecType rtc_codec_type_; |
| 50 | |
| 51 | DISALLOW_COPY_AND_ASSIGN(RtcEncodingVideoCapturer); |
| 52 | }; |
| 53 | |
| 54 | } // namespace content |
| 55 | |
| 56 | #endif // CONTENT_RENDERER_MEDIA_RTC_ENCODING_VIDEO_CAPTURER_H_ |