Python cv.CV_CAP_PROP_FRAME_WIDTH Examples

The following are 5 code examples of cv.CV_CAP_PROP_FRAME_WIDTH(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module cv , or try the search function .
Example #1
Source File: camera_opencv.py    From Tickeys-linux with MIT License 6 votes vote down vote up 
def init_camera(self):
        # create the device
        self._device = hg.cvCreateCameraCapture(self._index)

        # Set preferred resolution
        cv.SetCaptureProperty(self._device, cv.CV_CAP_PROP_FRAME_WIDTH,
                              self.resolution[0])
        cv.SetCaptureProperty(self._device, cv.CV_CAP_PROP_FRAME_HEIGHT,
                              self.resolution[1])

        # and get frame to check if it's ok
        frame = hg.cvQueryFrame(self._device)
        # Just set the resolution to the frame we just got, but don't use
        # self.resolution for that as that would cause an infinite recursion
        # with self.init_camera (but slowly as we'd have to always get a
        # frame).
        self._resolution = (int(frame.width), int(frame.height))

        #get fps
        self.fps = cv.GetCaptureProperty(self._device, cv.CV_CAP_PROP_FPS)
        if self.fps <= 0:
            self.fps = 1 / 30.

        if not self.stopped:
            self.start()
Example #2
Source File: camera_opencv.py    From Tickeys-linux with MIT License 6 votes vote down vote up 
def init_camera(self):
        # create the device
        self._device = hg.cvCreateCameraCapture(self._index)

        # Set preferred resolution
        cv.SetCaptureProperty(self._device, cv.CV_CAP_PROP_FRAME_WIDTH,
                              self.resolution[0])
        cv.SetCaptureProperty(self._device, cv.CV_CAP_PROP_FRAME_HEIGHT,
                              self.resolution[1])

        # and get frame to check if it's ok
        frame = hg.cvQueryFrame(self._device)
        # Just set the resolution to the frame we just got, but don't use
        # self.resolution for that as that would cause an infinite recursion
        # with self.init_camera (but slowly as we'd have to always get a
        # frame).
        self._resolution = (int(frame.width), int(frame.height))

        #get fps
        self.fps = cv.GetCaptureProperty(self._device, cv.CV_CAP_PROP_FPS)
        if self.fps <= 0:
            self.fps = 1 / 30.

        if not self.stopped:
            self.start()
Example #3
Source File: color-1.py    From rpi-opencv with GNU General Public License v3.0 5 votes vote down vote up 
def __init__(self):
        cv.NamedWindow( color_tracker_window, 1 )
        self.capture = cv.CaptureFromCAM(0)
        width = 640
        height = 480
        cv.SetCaptureProperty(self.capture,cv.CV_CAP_PROP_FRAME_WIDTH,width)
        cv.SetCaptureProperty(self.capture,cv.CV_CAP_PROP_FRAME_HEIGHT,height)
        #self.capture = cv.CaptureFromFile('crash-480.mp4')
Example #4
Source File: FPV_client.py    From elijah-provisioning with Apache License 2.0 5 votes vote down vote up 
def FPV_init():
    global capture
    global latest_frame
    #cv.SetCaptureProperty(capture, cv.CV_CAP_PROP_FRAME_WIDTH, 640)
    #cv.SetCaptureProperty(capture, cv.CV_CAP_PROP_FRAME_HEIGHT, 480)
Example #5
Source File: download_videos.py    From video_to_sequence with BSD 2-Clause "Simplified" License 4 votes vote down vote up 
def download_and_process_video(save_path, row):
    video_id = row['VideoID']
    video_path = row['video_path']
    full_path = os.path.join(save_path, video_path)
    if os.path.exists( full_path ):
        return

    start = row['Start']
    end = row['End']

    print video_id

    if os.path.exists('tmp.mp4'):
        os.system('rm tmp.mp4')

    try: # 다운로드 포기
        youtube = YouTube("https://www.youtube.com/watch?v="+video_id)
    except:
        print "다운로드 포기"
        return

    youtube.set_filename('tmp')

    try: # 360p로 받아보고 안되면 예외처리
        video = youtube.get('mp4', '360p')
    except:
        ipdb.set_trace()
    video.download('.')

    cap = cv2.VideoCapture( 'tmp.mp4' )
    fps = cap.get(cv.CV_CAP_PROP_FPS)
    fourcc = int(cap.get(cv.CV_FOURCC(*'XVID')))
    w = int(cap.get(cv.CV_CAP_PROP_FRAME_WIDTH))
    h = int(cap.get(cv.CV_CAP_PROP_FRAME_HEIGHT))

    out = cv2.VideoWriter( full_path, fourcc, fps, (w,h))

    start_frame = int(fps * start)
    end_frame = int(fps * end)

    frame_count = 0
    while frame_count < end_frame:
        ret, frame = cap.read()
        frame_count += 1

        if frame_count >= start_frame:
            out.write(frame)

    cap.release()
    out.release()