[Bug 2634] New: support yuv offscreen image without overlay in v4l.c

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https://bugs.freedesktop.org/show_bug.cgi?id=2634          
     
           Summary: support yuv offscreen image without overlay in v4l.c
           Product: xorg
           Version: unspecified
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Driver/other
        AssignedTo: xorg-bugzilla-noise at freedesktop.org
        ReportedBy: yheneaul at matrox.com


Is it possible the following patch in driver/v4l.c file? It handles the case 
were yuv is supported by a driver implementing offscreen image but doing it 
without overlay (the overlay flag is not set). In that case, the stop method of 
the offscreen image must be called because some device on the video card is 
converting and scaling yuv to rgb and blitting directly to the frame buffer 
continuously. 
 
*************** 
*** 495,501 **** 
            if (-1 == ioctl(V4L_FD, VIDIOCCAPTURE, &zero)) 
                perror("ioctl VIDIOCCAPTURE(0)"); 
            pPPriv->VideoOn = VIDEO_RECLIP; 
!       } 
      } else { 
        /* video stop - turn off and free everything */ 
        if (VIDEO_YUV == pPPriv->VideoOn) { 
--- 495,504 ---- 
            if (-1 == ioctl(V4L_FD, VIDIOCCAPTURE, &zero)) 
                perror("ioctl VIDIOCCAPTURE(0)"); 
            pPPriv->VideoOn = VIDEO_RECLIP; 
!       } else if (VIDEO_YUV == pPPriv->VideoOn && 
!                    (pPPriv->myfmt->flags & VIDEO_OVERLAID_IMAGES) == 0) { 
!             pPPriv->myfmt->stop(pPPriv->surface); 
!         } 
      } else { 
        /* video stop - turn off and free everything */ 
        if (VIDEO_YUV == pPPriv->VideoOn) {          
     
     
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