title: Capturing images with mjpg-streamer at a higher resolution than 640x480
body: <p>I'm using <a href="http://sourceforge.net/apps/mediawiki/mjpg-streamer/" rel="nofollow">mjpg-streamer</a> on Angstrom Linux on a BeagleBone and have been able to capture images from the stream. I can’t however seem to get the resolution to go above 640x480. When I try to set that option the result says it is streaming at the resolution I chose but the software doesn’t actually save any images. </p>
  
  <p>For example, this works:</p>
  
  <pre><code># ./mjpg_streamer -i "./input_uvc.so -d /dev/video0 -r 640x480 -yuv -n -f 1 -q 80" -o "./output_file.so -f ./tests/ -d 5000"
  MJPG Streamer Version: svn rev: 
   i: Using V4L2 device.: /dev/video0
   i: Desired Resolution: 640 x 480
   i: Frames Per Second.: 1
   i: Format............: YUV
   i: JPEG Quality......: 80
   o: output folder.....: ./tests
   o: input plugin.....: 0: ./input_uvc.so
   o: delay after save..: 5000
   o: ringbuffer size...: no ringbuffer
   o: command...........: disabled
  </code></pre>
  
  <p>While this does not:</p>
  
  <pre><code># ./mjpg_streamer -i "./input_uvc.so -d /dev/video0 -r 1280x720 -yuv -n -f 1 -q 80" -o "./output_file.so -f ./tests/ -d 5000"
  MJPG Streamer Version: svn rev: 
   i: Using V4L2 device.: /dev/video0
   i: Desired Resolution: 1280 x 720
   i: Frames Per Second.: 1
   i: Format............: YUV
   i: JPEG Quality......: 80
   o: output folder.....: ./tests
   o: input plugin.....: 0: ./input_uvc.so
   o: delay after save..: 5000
   o: ringbuffer size...: no ringbuffer
   o: command...........: disabled
  </code></pre>
  
  <p>I was successful in changing the resolution to <em>lower</em> than what appears to be the default though.</p>
  
  <pre><code># ./mjpg_streamer -i "./input_uvc.so -d /dev/video0 -r 320x240 -yuv -n -f 1 -q 80" -o "./output_file.so -f ./tests/ -d 5000"
  MJPG Streamer Version: svn rev: 
   i: Using V4L2 device.: /dev/video0
   i: Desired Resolution: 320 x 240
   i: Frames Per Second.: 1
   i: Format............: YUV
   i: JPEG Quality......: 80
   o: output folder.....: ./tests
   o: input plugin.....: 0: ./input_uvc.so
   o: delay after save..: 5000
   o: ringbuffer size...: no ringbuffer
   o: command...........: disabled
  </code></pre>
  
  <p>I have tried playing with the frame rate to no avail.</p>
  
  <p>Any help is appreciated. </p>