how verify video stream?

[chanyickwai 0]

Do you have any ideas on verifying if an IP camera is streaming a MJPEG, MPEG4, or H.264 video via Internet? Is there a handy software as viewer for testing this?

 

rgds, dove

[rory 0]

other than using the IP camera manufacturers API's/Procedures, perhaps save a very short clip then get the file specs and its Video compression.

[chanyickwai 0]

other than using the IP camera manufacturers API's/Procedures, perhaps save a very short clip then get the file specs and its Video compression.

 

 

Ah yeah, a good method to do it the another way. By the way, are the format of streaming and recording essentially the same?

 

Thanks, dove

[CollinR 0]

You can generally get a decent idea from the bandwidth it comsumes.

[rory 0]

Dove, most IP Camera manufacturers provide some form of SDK/API/OCX, you should be able to utilize that somehow, if not for the compression at least to save a really short clip. Personally Ive never worked with any of the IP Camera/Server APIs so cant say though. With DVR OCXs I have used though is as simple as just saying SaveToFile then Stop it after X amount of seconds .. grab the file and its properties using your own code and then look for the Video Compression.

[zmxtech 0]

VLC will do it and its free

 

http://www.videolan.org/vlc/

 

I use it to watch NASA TV also !

http://www.nasa.gov/55644main_NASATV_Windows.asx

 

 

z

[chanyickwai 0]

VLC will do it and its free

 

http://www.videolan.org/vlc/

 

I use it to watch NASA TV also !

http://www.nasa.gov/55644main_NASATV_Windows.asx

 

 

z

 

zmxtech, that's great.

 

 

many thanks, dove

[fchrist 0]

Unfortunately this will not always work. In fact a lot of vendors use proprietary streaming protocols that can not be viewed by standard players like VLC. Only via their own GUI or SDK.

 

- First and easiest approch is than to just ask the vendor

- Second you could use a network sniffer (like wireshark) to look at the traffic and identify the protocol this way.

 

By the way saving a part of a stream with the vendor specific player can be missleading as some vendors store a video in a different format than they use for streaming.