Unable setting the video capture formats
I have a Trident Capture Device and I registered in windows this camera with jmregister.exe and I only got one format (NTSC mode) UYVY 720x576, frame rate=15. But the camera has two operation modes, NTSC, PAL with different resolutions in each operation mode, and I would like to get all possible formats for this camera using JAVA but I don´t know how to do this with JMF. Another information that maybe helps is that in the windows camera software runs well and I can configure the camera in many formats.
Can someone give me any clues to solve this problem?
Thanks in advance
Edited by: jp1963 on Jan 13, 2009 6:39 AM
jp1963 wrote:
the camera has two operation modes, NTSC, PAL with different resolutions in each operation modeNot all of the formats that your camera puts out may be supported by JMF...but yes, it may also be an issue with the device driver.
Keep in mind that JMF is several years old, and most of the capturing capabilities of it were only tested in Windows 9x, so behavior with newer cameras and formats is pretty touch and go.
I would like to get all possible formats for this camera using JAVA but I don´t know how to do this with JMF. You're not going to get anything from the camera using Java. JMF (or any other Java API, for that matter) will only take what the VFW API will hand it, and it can accept. Either JMF doesn't support the other formats, VFW doesn't support the other formats, or like you suggest, you have a device driver issue.
Another information that maybe helps is that in the windows camera software runs well and I can configure the camera in many formats.Windows camera software may be running DirecShow, whereas JMF is running VFWs. Who knows... All this really suggests is that the box isn't lying about the formats that can be output by the camera.
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