1 /* 2 * Copyright 2011, Jérôme Duval, korli@users.berlios.de. 3 * Copyright 2009, Ithamar Adema, <ithamar.adema@team-embedded.nl>. 4 * Distributed under the terms of the MIT License. 5 */ 6 #ifndef _UVC_CAM_DEVICE_H 7 #define _UVC_CAM_DEVICE_H 8 9 10 #include "CamDevice.h" 11 #include "USB_video.h" 12 13 14 class UVCCamDevice : public CamDevice { 15 public: 16 UVCCamDevice(CamDeviceAddon &_addon, 17 BUSBDevice* _device); 18 virtual ~UVCCamDevice(); 19 20 virtual bool SupportsIsochronous(); 21 virtual status_t StartTransfer(); 22 virtual status_t StopTransfer(); 23 virtual status_t SuggestVideoFrame(uint32 &width, 24 uint32 &height); 25 virtual status_t AcceptVideoFrame(uint32 &width, 26 uint32 &height); 27 28 private: 29 void _ParseVideoControl( 30 const usbvc_class_descriptor* descriptor, 31 size_t len); 32 void _ParseVideoStreaming( 33 const usbvc_class_descriptor* descriptor, 34 size_t len); 35 status_t _ProbeCommitFormat(); 36 status_t _SelectBestAlternate(); 37 38 usbvc_interface_header_descriptor *fHeaderDescriptor; 39 40 const BUSBEndpoint* fInterruptIn; 41 uint32 fControlIndex; 42 uint32 fStreamingIndex; 43 uint32 fMaxVideoFrameSize; 44 uint32 fMaxPayloadTransferSize; 45 }; 46 47 48 class UVCCamDeviceAddon : public CamDeviceAddon { 49 public: 50 UVCCamDeviceAddon(WebCamMediaAddOn* webcam); 51 virtual ~UVCCamDeviceAddon(); 52 53 virtual const char* BrandName(); 54 virtual UVCCamDevice* Instantiate(CamRoster &roster, 55 BUSBDevice *from); 56 }; 57 58 #endif /* _UVC_CAM_DEVICE_H */ 59 60