Output = thumb_with_ffmpeg(args.infile, args.position, args. Help="thumbnail at this position (percentage), " ffmpegframes.sh Output a single frame from the video into an image file: ffmpeg -i input.mov -ss 00:00:14.435 -vframes 1 out. Parser.add_argument("-p", "-position", type=percentage, default=0.5,
Parser.add_argument("-f", "-ffmpeg", type=str, default=None, Parser.add_argument("outfile", type=str, help="Output file")
Parser.add_argument("infile", type=str, help="Input file") Return os.path.isfile(fpath) and os.access(fpath, os.X_OK)įor path in os.environ.split(os.pathsep):Įxe = os.path.join(path, " not in percentage range [0.0, 1.0)".format(x))ĭescription="Extract a thumbnail from a media file using ffmpeg") # Any copyright is dedicated to the Public Domain. So here is some sparsely documented code that should be easy enough to understand nonetheless. ffprobe as suggests would have been better for the task of getting the duration otherwise. One additional requirement was not to use ffprobe (as it might not be available, but ffmpeg would). If anyone has some quick guidance that would be greatly appreciated.As it turns out I had to solve more or less exactly the same thing a while back. Again, this is a bit beyond my ability for the moment. Potentially calling Octave through R and using similar approach of ffmpeg. However, many images seem to get skipped and one ends up with lots of corrupt files. However, I do not have access to Matlab nor I am that competent using it. I'd like to extract the specific frames in some instances.įfmpeg in Matlab. I also have the start and end time in seconds, epoch time and as a POSIXct object.
In my summary I have a behaviour event and the start and end frame numbers. This is an open source program which, quickly and easily, allows for user specified frame by frame annotation. I need to do this as I have annotated (many) video files using Solomon Coder. I am looking for a Windows based open source method to extract specific frames from video files (*.avi). If the video has a size of 420x320 pixels, then the first 420x360x3 bytes outputed by FFMPEG will give the RGB values of the pixels of the first frame, line by line, top to bottom.
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