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media: pvrusb2: correctly return V4L2_PIX_FMT_MPEG in enum_fmt

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The pvrusb2 code appears to have a some old workaround code for xawtv that causes a
WARN() due to an unrecognized pixelformat 0 in v4l2_ioctl.c.

Since all other MPEG drivers fill this in correctly, it is a safe assumption that
this particular problem no longer exists.

While I'm at it, clean up the code a bit.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Hans Verkuil 2017-12-13 18:44:42 -05:00 committed by Mauro Carvalho Chehab
parent 327553ae8e
commit c4b72ee8ac
1 changed files with 7 additions and 25 deletions
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32
drivers/media/usb/pvrusb2/pvrusb2-v4l2.c
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@ -78,18 +78,6 @@ static int vbi_nr[PVR_NUM] = {[0 ... PVR_NUM-1] = -1};
module_param_array(vbi_nr, int, NULL, 0444);
MODULE_PARM_DESC(vbi_nr, "Offset for device's vbi dev minor");
static struct v4l2_fmtdesc pvr_fmtdesc [] = {
{
.index = 0,
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
.flags = V4L2_FMT_FLAG_COMPRESSED,
.description = "MPEG1/2",
// This should really be V4L2_PIX_FMT_MPEG, but xawtv
// breaks when I do that.
.pixelformat = 0, // V4L2_PIX_FMT_MPEG,
}
};
#define PVR_FORMAT_PIX 0
#define PVR_FORMAT_VBI 1
@ -99,17 +87,11 @@ static struct v4l2_format pvr_format [] = {
.fmt = {
.pix = {
.width = 720,
.height = 576,
// This should really be V4L2_PIX_FMT_MPEG,
// but xawtv breaks when I do that.
.pixelformat = 0, // V4L2_PIX_FMT_MPEG,
.height = 576,
.pixelformat = V4L2_PIX_FMT_MPEG,
.field = V4L2_FIELD_INTERLACED,
.bytesperline = 0, // doesn't make sense
// here
//FIXME : Don't know what to put here...
.sizeimage = (32*1024),
.colorspace = 0, // doesn't make sense here
.priv = 0
/* FIXME : Don't know what to put here... */
.sizeimage = 32 * 1024,
}
}
},
@ -409,11 +391,11 @@ static int pvr2_g_frequency(struct file *file, void *priv, struct v4l2_frequency
static int pvr2_enum_fmt_vid_cap(struct file *file, void *priv, struct v4l2_fmtdesc *fd)
{
/* Only one format is supported : mpeg.*/
if (fd->index != 0)
/* Only one format is supported: MPEG. */
if (fd->index)
return -EINVAL;
memcpy(fd, pvr_fmtdesc, sizeof(struct v4l2_fmtdesc));
fd->pixelformat = V4L2_PIX_FMT_MPEG;
return 0;
}