I have a project about image processing.I need to process signal is stream video from server.I use opencv-2.4.3 and C#.
Now,I want to ask OpenCV.Org.Is opencv-2.4.3 support input signal is stream video ( not from camera or webcam connect computer) Thanks!
there is (limited) stream support in opencv via ffmpeg, if you got an mjpg url, you could try:
VideoCapture cap("http://ceac9.ua-camp-farms.arizona.edu/mjpg/video.mjpg");
unfortunately, that seems to work much nicer in linux, than on win
if it does not, you could still open a socket, and use imdecode() on the data you got. e.g, mjpeg is just single jpegs interleaved with multi-part form http headers.
Thank for reply! When I builded Opencv with ffmpeg,I got stream video ex:VideoCapture cap("http://ceac9.ua-camp-farms.arizona.edu/mjpg/video.mjpg"); I use an app for Android to stream video is IP webcam.And I have link to stream is URL://IP:Port/videofeed but I don't get this stream video.Can you tell me edit ffmjpg to support it?
maybe it's lacking the information, that it's mjpeg type.
it's notffmpeg's fault, but opencv seems to need the literal string somewhere in the url, so try a trick:
just append a dummy param at the end uf the url like:
URL://IP:Port/videofeed?type=mjpg
helps most of the time!
Asked: 2013-02-27 19:43:02 -0600
Seen: 3,761 times
Last updated: Apr 05 '13
