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// This is the main interface for the cast receiver. All configuration are done 6// at creation. 7 8#ifndef MEDIA_CAST_CAST_RECEIVER_H_ 9#define MEDIA_CAST_CAST_RECEIVER_H_ 10 11#include "base/basictypes.h" 12#include "base/callback.h" 13#include "base/memory/ref_counted.h" 14#include "base/memory/scoped_ptr.h" 15#include "base/time/time.h" 16#include "media/cast/cast_config.h" 17#include "media/cast/cast_environment.h" 18 19namespace media { 20class VideoFrame; 21} 22 23namespace media { 24namespace cast { 25// Callback in which the raw audio frame and play-out time will be returned 26// once decoding is complete. 27typedef base::Callback<void(scoped_ptr<PcmAudioFrame>, const base::TimeTicks&)> 28 AudioFrameDecodedCallback; 29 30// Callback in which the encoded audio frame and play-out time will be returned. 31typedef base::Callback<void(scoped_ptr<EncodedAudioFrame>, 32 const base::TimeTicks&)> AudioFrameEncodedCallback; 33 34// Callback in which the raw frame and render time will be returned once 35// decoding is complete. 36typedef base::Callback<void(const scoped_refptr<media::VideoFrame>& video_frame, 37 const base::TimeTicks&)> 38 VideoFrameDecodedCallback; 39 40// Callback in which the encoded video frame and render time will be returned. 41typedef base::Callback<void(scoped_ptr<EncodedVideoFrame>, 42 const base::TimeTicks&)> VideoFrameEncodedCallback; 43 44// This Class is thread safe. 45class FrameReceiver : public base::RefCountedThreadSafe<FrameReceiver> { 46 public: 47 virtual void GetRawAudioFrame(int number_of_10ms_blocks, 48 int desired_frequency, 49 const AudioFrameDecodedCallback& callback) = 0; 50 51 virtual void GetCodedAudioFrame( 52 const AudioFrameEncodedCallback& callback) = 0; 53 54 virtual void GetRawVideoFrame(const VideoFrameDecodedCallback& callback) = 0; 55 56 virtual void GetEncodedVideoFrame( 57 const VideoFrameEncodedCallback& callback) = 0; 58 59 protected: 60 virtual ~FrameReceiver() {} 61 62 private: 63 friend class base::RefCountedThreadSafe<FrameReceiver>; 64}; 65 66// This Class is thread safe. 67class CastReceiver { 68 public: 69 static CastReceiver* CreateCastReceiver( 70 scoped_refptr<CastEnvironment> cast_environment, 71 const AudioReceiverConfig& audio_config, 72 const VideoReceiverConfig& video_config, 73 PacketSender* const packet_sender); 74 75 // All received RTP and RTCP packets for the call should be inserted to this 76 // PacketReceiver. 77 virtual scoped_refptr<PacketReceiver> packet_receiver() = 0; 78 79 // Polling interface to get audio and video frames from the CastReceiver. 80 virtual scoped_refptr<FrameReceiver> frame_receiver() = 0; 81 82 virtual ~CastReceiver() {} 83}; 84 85} // namespace cast 86} // namespace media 87 88#endif // MEDIA_CAST_CAST_RECEIVER_H_ 89