With open( "vid_from_queue. # Write data from queue to file vid_from_queue. Object detection using deep learning with Yolo, OpenCV and Python via Real Time Streaming Protocol ( RTSP) Recognized objects are stored in date seperated in folders per class for further training or face recognition. Print( "There is a problem (queue is empty)!!!") In_stream = "rtsp:///vod/mp4:BigBuckBunny_115k.mov" #in_stream = "rtsp://:xxx/Streaming/Channels/101?transportmode=multicast", Capturing RTSP frames using FFmpeg with hardware acceleration GPU - GTX 1050, 3GB CPU - Corei5 9thGen, 16GB RAM, Thread(s) per core: 2, Core(s). If less than 1024 bytes read(not going to work with CCTV, but works with input file)įor subprocess to finish(with timeout of 1 second).Ĭase of a timeout(there should be a timeout because input stream still lives). read( 1024) # Read data from pip in chunks of 1024 bytes T need to execute the command through the shell).įor i in range( 100): # Read up to 100 KBytesĭata = pipe.stdout. Popen(mand, stdout = sp.PIPE, bufsize = 1024 ** 3) # Don 't use shell=True (you don' "-an", "-sn", # No audio an no subtites "-f", "h264", # Define pipe format to be h264 "-" Optionally uses system-wide utilities for saving streams to file storage, such as ffmpeg, OpenRTSP or mencoder. 264 "-c:v", "copy", # Tell ffmpeg to copy the video stream as is(without decding and encoding) The next 420x360x3 bytes afer that will represent the second frame, etc."-c:v", "h264", # Tell ffmpeg that input stream codec is h264 "-i", in_stream, # Read stream from file vid. If the video has a size of 420x320 pixels, then the first 420x360x3 bytes outputed byįFMPEG will give the RGB values of the pixels of the first frame, line by line, top to bottom.
Now we just have to read the output of FFMPEG. It can be omitted most of the time in Python 2 but not in Python 3 where its default value is pretty small. In sp.Popen, the bufsize parameter must be bigger than the size of one frame (see below). The format image2pipe and the - at the end tell FFMPEG that it is being used with a pipe by another program.
In the code above -i myHolidays.mp4 indicates the input file, while rawvideo/rgb24 asks for a raw RGB output. Import subprocess as sp command = pipe = sp.
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