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[media] gspca - main: Better values for V4L2_FMT_FLAG_COMPRESSED 

In vidioc_enum_fmt_vid_cap, the 'compressed' flag was set from the
pixelformat, and all pixelformats were not treated.
Now, images are told as compressed when the image size is smaller than
its number of pixels.

Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-François Moine 2011-08-10 07:32:57 -03:00 committed by Mauro Carvalho Chehab
parent 480992b357
commit b796fb6ed0
1 changed files with 3 additions and 14 deletions
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17
drivers/media/video/gspca/gspca.c
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@ -499,19 +499,6 @@ void gspca_frame_add(struct gspca_dev *gspca_dev,
}
EXPORT_SYMBOL(gspca_frame_add);
static int gspca_is_compressed(__u32 format)
{
switch (format) {
case V4L2_PIX_FMT_MJPEG:
case V4L2_PIX_FMT_JPEG:
case V4L2_PIX_FMT_SPCA561:
case V4L2_PIX_FMT_PAC207:
case V4L2_PIX_FMT_MR97310A:
return 1;
}
return 0;
}
static int frame_alloc(struct gspca_dev *gspca_dev, struct file *file,
enum v4l2_memory memory, unsigned int count)
{
@ -1049,7 +1036,9 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
return -EINVAL; /* no more format */
fmtdesc->pixelformat = fmt_tb[index];
if (gspca_is_compressed(fmt_tb[index]))
if (gspca_dev->cam.cam_mode[i].sizeimage <
gspca_dev->cam.cam_mode[i].width *
gspca_dev->cam.cam_mode[i].height)
fmtdesc->flags = V4L2_FMT_FLAG_COMPRESSED;
fmtdesc->description[0] = fmtdesc->pixelformat & 0xff;
fmtdesc->description[1] = (fmtdesc->pixelformat >> 8) & 0xff;