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_MODULES_VIDEO_CAPTURE_INCLUDE_VIDEO_CAPTURE_DEFINES_H_ 12 #define WEBRTC_MODULES_VIDEO_CAPTURE_INCLUDE_VIDEO_CAPTURE_DEFINES_H_ 13 14 #include "webrtc/common_video/interface/i420_video_frame.h" 15 #include "webrtc/modules/interface/module_common_types.h" 16 #include "webrtc/typedefs.h" 17 18 namespace webrtc 19 { 20 // Defines 21 #ifndef NULL 22 #define NULL 0 23 #endif 24 25 enum {kVideoCaptureUniqueNameLength =1024}; //Max unique capture device name lenght 26 enum {kVideoCaptureDeviceNameLength =256}; //Max capture device name lenght 27 enum {kVideoCaptureProductIdLength =128}; //Max product id length 28 29 // Enums 30 enum VideoCaptureRotation 31 { 32 kCameraRotate0 = 0, 33 kCameraRotate90 = 5, 34 kCameraRotate180 = 10, 35 kCameraRotate270 = 15 36 }; 37 38 struct VideoCaptureCapability 39 { 40 int32_t width; 41 int32_t height; 42 int32_t maxFPS; 43 int32_t expectedCaptureDelay; 44 RawVideoType rawType; 45 VideoCodecType codecType; 46 bool interlaced; 47 VideoCaptureCapabilityVideoCaptureCapability48 VideoCaptureCapability() 49 { 50 width = 0; 51 height = 0; 52 maxFPS = 0; 53 expectedCaptureDelay = 0; 54 rawType = kVideoUnknown; 55 codecType = kVideoCodecUnknown; 56 interlaced = false; 57 } 58 ; 59 bool operator!=(const VideoCaptureCapability &other) const 60 { 61 if (width != other.width) 62 return true; 63 if (height != other.height) 64 return true; 65 if (maxFPS != other.maxFPS) 66 return true; 67 if (rawType != other.rawType) 68 return true; 69 if (codecType != other.codecType) 70 return true; 71 if (interlaced != other.interlaced) 72 return true; 73 return false; 74 } 75 bool operator==(const VideoCaptureCapability &other) const 76 { 77 return !operator!=(other); 78 } 79 }; 80 81 enum VideoCaptureAlarm 82 { 83 Raised = 0, 84 Cleared = 1 85 }; 86 87 /* External Capture interface. Returned by Create 88 and implemented by the capture module. 89 */ 90 class VideoCaptureExternal 91 { 92 public: 93 // |capture_time| must be specified in the NTP time format in milliseconds. 94 virtual int32_t IncomingFrame(uint8_t* videoFrame, 95 int32_t videoFrameLength, 96 const VideoCaptureCapability& frameInfo, 97 int64_t captureTime = 0) = 0; 98 virtual int32_t IncomingI420VideoFrame(I420VideoFrame* video_frame, 99 int64_t captureTime = 0) = 0; 100 101 protected: ~VideoCaptureExternal()102 ~VideoCaptureExternal() {} 103 }; 104 105 // Callback class to be implemented by module user 106 class VideoCaptureDataCallback 107 { 108 public: 109 virtual void OnIncomingCapturedFrame(const int32_t id, 110 I420VideoFrame& videoFrame) = 0; 111 virtual void OnCaptureDelayChanged(const int32_t id, 112 const int32_t delay) = 0; 113 protected: ~VideoCaptureDataCallback()114 virtual ~VideoCaptureDataCallback(){} 115 }; 116 117 class VideoCaptureFeedBack 118 { 119 public: 120 virtual void OnCaptureFrameRate(const int32_t id, 121 const uint32_t frameRate) = 0; 122 virtual void OnNoPictureAlarm(const int32_t id, 123 const VideoCaptureAlarm alarm) = 0; 124 protected: ~VideoCaptureFeedBack()125 virtual ~VideoCaptureFeedBack(){} 126 }; 127 128 } // namespace webrtc 129 130 #endif // WEBRTC_MODULES_VIDEO_CAPTURE_INCLUDE_VIDEO_CAPTURE_DEFINES_H_ 131