xiaoyunfei

this is log: 2019-05-30 10:50:45.425 8973-8989/com.serenegiant.usbcameratest0 I/MainActivity: supportedSize:{"formats":[{"index":1,"type":6,"default":1,"size":["1920x1080","160x120","320x240","352x288","640x480","800x600","1024x768","1280x720","1280x1024","1600x1200","1920x1080"]},{"index":2,"type":4,"default":1,"size":["640x480","1920x1080","1280x720","800x600","960x540"]}]} 2019-05-30 10:50:45.425 8973-8989/com.serenegiant.usbcameratest0 D/Surface: Surface::setBuffersUserDimensions(this=0x94b15830,w=640,h=480) 2019-05-30 10:50:45.425 8973-8989/com.serenegiant.usbcameratest0 E/libUVCCamera: [8989*UVCPreview.cpp:330:startPreview]:UVCPreview::startPreview() ========= 2019-05-30 10:50:45.426 8973-9006/com.serenegiant.usbcameratest0 E/libUVCCamera: [9006*UVCPreview.cpp:474:preview_thread_func]:UVCPreview::preview_thread_func() ========= 2019-05-30 10:50:45.441 8973-9006/com.serenegiant.usbcameratest0 I/libUVCCamera: [9006*UVCPreview.cpp:507:prepare_preview]:frameSize=(640,480)@MJPEG...