User:Feld

Hi, my name is Feld.

Problem: Cannot keep settings for capture device

I am using version 0.8.5 of VLC with the wxWindows interface. The computer/OS is an Athlon 64 running Windows XP Home. The capture device is a CompUSA "High Speed USB Video Grabber" which according to the drivers and to VLC is a "USB 2820 device".

My problem is that the capture device appears to output in a strange aspect ratio. (The software that came with the device, ULead Video Studio 7 SE Basic, appears to be capturing from the device in a 950x480 aspect.)

I have found how to get normal-aspect video to play on the screen:

1. File->Open Capture Device

   I get the Open dialog, on the DirectShow tab.

2. Press the Refresh list button across from Video device name

   In a few moments, "USB 2820 Device" appears.

3. Select USB 2820 Device
4. Press Advanced options button

   Get Advanced options (DirectShow input) dialog

5. Check Device properties checkbox
6. Click OK on Advanced options (DirectShow input) dialog
7. Click OK on Open dialog

   Get Properties dialog with tabs Video Decoder, Video Proc Amp, and Video Image tabs. On Video Decoder tab:

   • Video Standard is set to "NTSC_M"
   • Signal Detected is 1
   • Lines detected is 525
   • VCR Input is unchecked.

8. Click OK on Properties dialog with Video Decoder, Video Proc Amp, and Video Image tabs.

   Get Properties dialog with single Stream Format tab. Panes are Video Format and Compression; on Video Format pane:

   • Video Standard is set to "NTSC_M" (unchangable here)
   • Frame Rate is "30.000"
   • Flip Horizontal is greyed out
   • Color Space / Compression is set to I420
   • Output Size says the default is "640x480" but is always "352x240" when this dialog first appears.

9. Click Apply and OK

   Get Properties dialog with single Crossbar tab. Panes are Input and Output.

10. Click OK.

    Video from capture device now appears on screen in a normal aspect ratio.

This works to get video onto the screen, but I would like to use VLC to save the video I'm capturing to file. I can't seem to do this, because if I try to set up a transcoding chain with the input from the capture device, I have no way of changing the Output Size to the 640x480 it should be.