使用onvif从相机获得分辨率

Question

I'm trying to get current video resolution from my onvif supported camera using GetVideoOutputs. When I run this implementation in a php script I'm getting the following error:-

Array
(
[Envelope] => Array
    (
        [Header] => Array
            (
            )

        [Body] => Array
            (
                [Fault] => Array
                    (
                        [@attributes] => Array
                            (
                                [encodingStyle] => http://www.w3.org/2003/05/soap-encoding
                            )

                        [Code] => Array
                            (
                                [Value] => SOAP-ENV:Receiver
                                [Subcode] => Array
                                    (
                                        [Value] => ter:Action
                                    )

                            )

                        [Reason] => Array
                            (
                                [Text] => Action failed
                            )

                        [Detail] => Array
                            (
                                [Text] => The requested SOAP action failed
                            )

                    )

            )

    )

)

Answer 1

Using GetVideoOutputs from the Device I/O service to get the video resolutions available for streaming is wrong.

As you can see in §5.1.1 of the Device I/O specs,

This command lists all available video outputs of a device. A device that has one or more physical video outputs shall support listing of available video outputs through the GetVideoOutputs command.

To get the video resolution you must use:

• the Media Service if your camera is Profile S compliant, see §5.5
• the Media Service 2 if your camera is Profile T compliant, see §5.2.3 . By now, this profile is not released yet, thus it is very unlikely that this is your case.