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. -- Unsubscribe: https://lists.haxx.se/listinfo/curl-library Etiquette: https://curl.se/mail/etiquette.html
