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CAP_PROP_POS_FRAMES, i_frame ) process_frame ( cap, writer, mask ) frame_counter += 1 amount_done = frame_counter / args. For example, fourcc cv2.VideoWriterfourcc ('XVID') voObj cv2.VideoWriter ('output.avi',fourcc, 15.0, (1280,360)) which compressed the content in avi video as expected. UBUNTU FFMPEG FOURCC VIDEOWRITER CODEend_with : process_frame ( cap, writer, mask ) frame_counter += 1 amount_done = frame_counter / total_frame_span update_progress ( amount_done ) cur_frame_number += 1 else : frame_interval = total_frame_span // args. Encoding avi video works by setting the FOURCC code to ‘XVID’. start_from while cur_frame_number < args. frame_count = - 1 : cur_frame_number = args. VIDEOWRITER_PROP_NSTRIPES, cpu_count ()) if args. CAP_PROP_FRAME_HEIGHT ))), True ) writer. createBackgroundSubtractorMOG2 () elif subtractor = 'GMG' : self. isOpened (): print ( 'Could not find video file.' ) sys. """ if video_path = '-1' : video_path = int ( video_path ) self. subtractor (str): name of background subtractor. ![]() ![]() write_info (bool): should write frame info when displaying. filters (list): list of filter's names to apply in video source. video_shape (tuple): default size for frame redimensioning. UBUNTU FFMPEG FOURCC VIDEOWRITER MANUALUnfortunately you have to do a manual build if you wish to use x264 encoder. Only LGPL licensed builds of FFmpeg are redistributed within opencv-python packages and thus the packages support only x264 decoding since the x264 decoder in FFmpeg is LGPL. UBUNTU FFMPEG FOURCC VIDEOWRITER LICENSEout_path (str): output video destination path. x264 encoding falls under GPL license in FFmpeg. Args: video_path (str): path to video file. fps ) else : passĭef _init_ ( self, video_path, out_path, video_shape, filters, write_capture_info, subtractor = 'MOG' ): """Initializer. ![]() Format_RGB888 ) pixmap = QPixmap ( qt_image ) pixmap = pixmap. data, width, height, color_swapped_image. shape qt_image = QImage ( color_swapped_image. The following are 30 code examples of cv2.VideoWriterfourcc().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. COLOR_BGR2RGB ) height, width, _ = color_swapped_image. read () if image is None : break color_swapped_image = cv2. I can and have built them for Ubuntu/Raspbian.Def run ( self ): while True : if self. I have control over the version both OpenCV and FFMPEG (if required GStreamer too). If PlatformUtils.isRunningOnRaspberryPi(): The x264 as FourCC code leads to one of - failure, non-portable video file + annoying FFMPEG warning. On Ubuntu (VM on OSX) and on OSX, AVC1 works.ĭays of Googling only delivered those hacks, not a good understanding of the problem. On my Raspbian stretch installation, I use 0x00000021 as the fourCC code. ![]() UBUNTU FFMPEG FOURCC VIDEOWRITER MP4So far I have got my python stack writing MP4 video files across Raspbian/Ubuntu/OSX, with a hack. What I want to know is when I specify 'X264' as FourCC code trying to write an x.MP4 file (FFMPEG backend) and the request is marshalled to FFMPEG what requirements/dependencies need to be satisfied by the OS for it to success. I am interested to understand the game in play rather than discussing a piece of code. Target platforms in order of importance - Ubuntu, Raspbian, OSXīasically, my shortcoming at this point is not understanding the relationship of FourCC code (as a parameter to OpenCV VideoWriter) to the FFMPEG backend and its requirements. I am trying to get OpenCV VideoWriter work across platform consistently for MP4 container with H246 encoding. ![]()
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