target/linux/brcm2708/patches-3.10/0137-V4L2-Improve-G_FBUF-handling-so-we-pass-conformance.patch

   1 From 6f5cc6eb60f7db36b94b9c960b5330464b4e729f Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dsteve@broadcom.com>
   3 Date: Mon, 9 Dec 2013 17:30:09 +0000
   4 Subject: [PATCH 137/174] V4L2: Improve G_FBUF handling so we pass conformance
   5
   6 Return some sane numbers for get framebuffer so that
   7 we pass conformance.
   8
   9 Signed-off-by: Dave Stevenson <dsteve@broadcom.com>
  10 ---
  11  drivers/media/platform/bcm2835/bcm2835-camera.c | 14 +++++++++++---
  12  1 file changed, 11 insertions(+), 3 deletions(-)
  13
  14 --- a/drivers/media/platform/bcm2835/bcm2835-camera.c
  15 +++ b/drivers/media/platform/bcm2835/bcm2835-camera.c
  16 @@ -664,10 +664,18 @@ static int vidioc_g_fbuf(struct file *fi
  17  {
  18         /* The video overlay must stay within the framebuffer and can't be
  19            positioned independently. */
  20 +       struct bm2835_mmal_dev *dev = video_drvdata(file);
  21 +       struct vchiq_mmal_port *preview_port =
  22 +                   &dev->component[MMAL_COMPONENT_CAMERA]->
  23 +                   output[MMAL_CAMERA_PORT_PREVIEW];
  24         a->flags = V4L2_FBUF_FLAG_OVERLAY;
  25 -
  26 -       /* todo: v4l2_framebuffer still needs more info filling in
  27 -        *       in order to pass the v4l2-compliance test. */
  28 +       a->fmt.width = preview_port->es.video.width;
  29 +       a->fmt.height = preview_port->es.video.height;
  30 +       a->fmt.pixelformat = V4L2_PIX_FMT_YUV420;
  31 +       a->fmt.bytesperline = (preview_port->es.video.width * 3)>>1;
  32 +       a->fmt.sizeimage = (preview_port->es.video.width *
  33 +                              preview_port->es.video.height * 3)>>1;
  34 +       a->fmt.colorspace = V4L2_COLORSPACE_SMPTE170M;
  35
  36         return 0;
  37  }