On Wednesday 16 July 2008, Andreas Volz wrote: > Am Thu, 17 Jul 2008 01:35:35 +1000 schrieb Brian: > > Andreas, > > > > >>> Thanks that works nice. I could record a video. It's also possible > > >>> to record three different video formats: > > > > No problem, I was happy when I found it too:) > > > > Note I am not sure what version you got, but 9.0 was a lot more > > stable than 9.1 for me. > > I got 0.9.1. Looks stable so far. But for some strange reason the > uvcvideo modules "crashed" after using guvcvideo. Not sure if this is > direct related. > > And the save images function doesn't work. The result looks much like a > JPEG, but no application likes to open it. Strange is that 'file' tells > me that it's a JPEG. I didn't investigate that problem until now.
That's probably because the JPEG file doesn't include Huffman tables. MJPEG defines its set of Huffman tables and strips them from the data stream to save bandwidth, but standard JPEG viewers can't open images with no Huffman tables. You can find a simple python script to convert 'MJPEG images' into JPEG images at svn://svn.berlios.de/linux-uvc/uvc-utils/trunk > And the video is in an extra window. I would more like it in a embedded > frame. For some reason it's not possible to enlarge the window. Maybe > that's a graphic driver issue. > > > Also only one of the formats is compressed. > > I have this 'feeling' that the file size that gets created is pretty > > big. Although I have nothing to compare it with? > > Sure the resulting videos are really big. You should convert them with > transcode into something smaller (e,g, MPEG4, DIVX,...). I would really > like guvcvideo could do this direct. Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
