1 /* 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 #ifndef WEBRTC_COMMON_VIDEO_INCLUDE_INCOMING_VIDEO_STREAM_H_ 12 #define WEBRTC_COMMON_VIDEO_INCLUDE_INCOMING_VIDEO_STREAM_H_ 13 14 #include "webrtc/base/platform_thread.h" 15 #include "webrtc/base/scoped_ptr.h" 16 #include "webrtc/base/thread_annotations.h" 17 #include "webrtc/common_video/video_render_frames.h" 18 19 namespace webrtc { 20 class CriticalSectionWrapper; 21 class EventTimerWrapper; 22 23 class VideoRenderCallback { 24 public: 25 virtual int32_t RenderFrame(const uint32_t streamId, 26 const VideoFrame& videoFrame) = 0; 27 28 protected: 29 virtual ~VideoRenderCallback() {} 30 }; 31 32 class IncomingVideoStream : public VideoRenderCallback { 33 public: 34 IncomingVideoStream(uint32_t stream_id, bool disable_prerenderer_smoothing); 35 ~IncomingVideoStream(); 36 37 // Get callback to deliver frames to the module. 38 VideoRenderCallback* ModuleCallback(); 39 virtual int32_t RenderFrame(const uint32_t stream_id, 40 const VideoFrame& video_frame); 41 42 // Set callback to the platform dependent code. 43 void SetRenderCallback(VideoRenderCallback* render_callback); 44 45 // Callback for file recording, snapshot, ... 46 void SetExternalCallback(VideoRenderCallback* render_object); 47 48 // Start/Stop. 49 int32_t Start(); 50 int32_t Stop(); 51 52 // Clear all buffers. 53 int32_t Reset(); 54 55 // Properties. 56 uint32_t StreamId() const; 57 uint32_t IncomingRate() const; 58 59 int32_t SetStartImage(const VideoFrame& video_frame); 60 61 int32_t SetTimeoutImage(const VideoFrame& video_frame, 62 const uint32_t timeout); 63 64 int32_t SetExpectedRenderDelay(int32_t delay_ms); 65 66 protected: 67 static bool IncomingVideoStreamThreadFun(void* obj); 68 bool IncomingVideoStreamProcess(); 69 70 private: 71 enum { kEventStartupTimeMs = 10 }; 72 enum { kEventMaxWaitTimeMs = 100 }; 73 enum { kFrameRatePeriodMs = 1000 }; 74 75 void DeliverFrame(const VideoFrame& video_frame); 76 77 uint32_t const stream_id_; 78 const bool disable_prerenderer_smoothing_; 79 // Critsects in allowed to enter order. 80 const rtc::scoped_ptr<CriticalSectionWrapper> stream_critsect_; 81 const rtc::scoped_ptr<CriticalSectionWrapper> thread_critsect_; 82 const rtc::scoped_ptr<CriticalSectionWrapper> buffer_critsect_; 83 // TODO(pbos): Make plain member and stop resetting this thread, just 84 // start/stoping it is enough. 85 rtc::scoped_ptr<rtc::PlatformThread> incoming_render_thread_ 86 GUARDED_BY(thread_critsect_); 87 rtc::scoped_ptr<EventTimerWrapper> deliver_buffer_event_; 88 89 bool running_ GUARDED_BY(stream_critsect_); 90 VideoRenderCallback* external_callback_ GUARDED_BY(thread_critsect_); 91 VideoRenderCallback* render_callback_ GUARDED_BY(thread_critsect_); 92 const rtc::scoped_ptr<VideoRenderFrames> render_buffers_ 93 GUARDED_BY(buffer_critsect_); 94 95 uint32_t incoming_rate_ GUARDED_BY(stream_critsect_); 96 int64_t last_rate_calculation_time_ms_ GUARDED_BY(stream_critsect_); 97 uint16_t num_frames_since_last_calculation_ GUARDED_BY(stream_critsect_); 98 int64_t last_render_time_ms_ GUARDED_BY(thread_critsect_); 99 VideoFrame temp_frame_ GUARDED_BY(thread_critsect_); 100 VideoFrame start_image_ GUARDED_BY(thread_critsect_); 101 VideoFrame timeout_image_ GUARDED_BY(thread_critsect_); 102 uint32_t timeout_time_ GUARDED_BY(thread_critsect_); 103 }; 104 105 } // namespace webrtc 106 107 #endif // WEBRTC_COMMON_VIDEO_INCLUDE_INCOMING_VIDEO_STREAM_H_ 108
