On 7/8/2022 9:39 AM, VINEETH NAIR via curl-library wrote: > > I am using libcurl version 7.79.1. I have an application that uses > > libcurl to connect to an IP camera with RTSP mjpeg stream. The > > application reads the frames from the camera. > > > > The problem is, when I run this application in windows, the camera > > stops streaming after sending a few JPEG frames. I can verify from the > > Wireshark logs that the connection to the camera went through and > > after the "PLAY" command the camera did send a few JPEG frames. But > > then it just stops streaming. > > The connection is still active, as the camera responds to a "TEARDOWN" > > command with an "Ok" reply. > > The same application didn't give any issue in a Mac and linux OS. The > > camera continuously streams JPEG frames.It works with vlc media player > > as well on all platforms: windows, linux and mac. > > > > few other information: > > 1. As a heartbeat message, to keep the camera connection alive I am > > sending an empty GET_PARAMETER request > > 2. The IP camera uses digest authentication. > > On further investigation, I found that when the camera stopped > > streaming JPEG frames, there seems to be some change in the nonce used > > by digest authentication. Since the GET_PARAMETER request got a "401 > > unauthorized" reply > > However, the very next GET_PARAMETER request got an "Ok" reply > > > > So this change in nonce by the server(IP camera) is what might have > > caused the disconnection. > > > > Have you seen a similar issue? Can you help me with debugging? > > > If you are running the same application on Linux and Mac as you are on > Windows, and only the latter is a problem, get the curl_version() in > both applications and try the working version on Windows. Also, try the > latest curl version. > > I am running the same application and the same libcurl version in all >> three platforms.I can try using the latest version. Thankyou > > Regards, Vineeth Nair
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