Hi, I have a video source (Hikvision IP camera) whose stored recordings can be accessed via rtsp. It appears thought that a particular recording can only be accessed by using the appropriate "Range...." in the rtsp PLAY message sent from the client to the camera.
By setting the "-ss" parameter, I can set the Range value to: "Range: npt=....." Unfortunately it seems that this camera requires the range to be specified not in offset from the start of the file (npt - which it ignores), but using absolute time: "Range: clock=" According to the rtsp rfc, the above is valid, but so far as I can tell avconv does not allow for this to be specified when joining the stream? Any ideas?
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