[Ffmpeg-devel] Any pointers on how to connect to an MJPEG stream?
Thu Feb 22 18:30:36 CET 2007
On Thu, Feb 22, 2007 at 05:17:58PM +0000, Robert Harle wrote:
> >>I have a camera that outputs an MJPEG stream to my network
> >>(connecting to http://camera_ip/mjpegstream). I want to be able to
> >>obtain frames from the video using libavformat. I can do this from a
> >>video file using av_open_input_file(), but I'm not sure how to
> >>convert to a stream. At present I have:
> >>av_open_input_file(&formatctx, filename, NULL, 0, NULL);
> >>I see there is an av_open_input_stream() but I'm unsure as to the
> >>parameters to pass to it, or even if this is intended to do what I want.
> >>Can anyone offer a suggestion, or a resource to try?
> >Try ffmpeg -i http://camera_ip/whatever -t 300 x.mpg , what happens?
> It fails, unable recognise the format. I have to manually specify:
> ffmpeg -f mjpeg -i http://camera_ip/whatever -t 300 x.mpg
> and then it works fine. Similarly, ffplay -f mjpeg <URL> works fine.
> Reading between the lines of your request, is it that
> av_open_input_file() should take a URL and work, but the call fails
> because it can't recognise a format from the URL?
implement mjpeg_demuxer.read_probe() or force the input format to mjpeg
like ffmpeg does when -f mjpeg is specified
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
The worst form of inequality is to try to make unequal things equal.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 189 bytes
Desc: not available
More information about the ffmpeg-devel