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v4l2loopback: Set default capabilities

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Set default capabilities for virtual camera:
Resolution: 1280x720@30
Format BGR32

JIRA SHLD2-370

Change-Id: I42541804847ab6473b5797cca2ad0275436494cb
Signed-off-by: Illia Ragozin <iragozin@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3267280
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: svcacv <svcacv@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Bogdan Marian Dumitrescu <bdumitrescu@nvidia.com>
This commit is contained in:
Illia Ragozin
2024-12-12 20:50:51 +00:00
committed by Jon Hunter
parent 2e69020353
commit b67ddab632
1 changed files with 25 additions and 3 deletions
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28
drivers/media/platform/tegra/v4l2loopback/v4l2loopback.c
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@@ -257,7 +257,7 @@ static const struct v4l2_ctrl_config v4l2loopback_ctrl_keepformat = {
.min = 0,
.max = 1,
.step = 1,
.def = 0,
.def = 1,
// clang-format on
};
static const struct v4l2_ctrl_config v4l2loopback_ctrl_sustainframerate = {
@@ -437,6 +437,13 @@ struct v4l2l_format {
static const unsigned int FORMATS = ARRAY_SIZE(formats);
// Constants for default output format
static const unsigned int cDefaultWidth = 1280;
static const unsigned int cDefaultHeight = 720;
static const unsigned int cDefaultFormat = V4L2_PIX_FMT_BGR32;
static const unsigned int cDefaultTPFNumerator = 1;
static const unsigned int cDefaultTPFDenominator = 30;
static char *fourcc2str(unsigned int fourcc, char buf[4])
{
buf[0] = (fourcc >> 0) & 0xFF;
@@ -482,6 +489,19 @@ static void pix_format_set_size(struct v4l2_pix_format *f,
}
}
static int set_default_format(struct v4l2_loopback_device *dev)
{
const struct v4l2l_format *format = format_by_fourcc(cDefaultFormat);
struct v4l2_pix_format *pix_fmt = &dev->pix_format;
pix_fmt->width = cDefaultWidth;
pix_fmt->height = cDefaultHeight;
pix_format_set_size(pix_fmt, format, cDefaultWidth, cDefaultHeight);
pix_fmt->pixelformat = format->fourcc;
pix_fmt->colorspace = V4L2_COLORSPACE_SRGB;
return 0;
}
static int v4l2l_fill_format(struct v4l2_format *fmt, int capture,
const u32 minwidth, const u32 maxwidth,
const u32 minheight, const u32 maxheight)
@@ -2533,8 +2553,8 @@ static void init_capture_param(struct v4l2_captureparm *capture_param)
capture_param->capturemode = 0;
capture_param->extendedmode = 0;
capture_param->readbuffers = max_buffers;
capture_param->timeperframe.numerator = 1;
capture_param->timeperframe.denominator = 30;
capture_param->timeperframe.numerator = cDefaultTPFNumerator;
capture_param->timeperframe.denominator = cDefaultTPFDenominator;
}
static void check_timers(struct v4l2_loopback_device *dev)
@@ -2802,7 +2822,9 @@ static int v4l2_loopback_add(struct v4l2_loopback_config *conf, int *ret_nr)
V4L2_COLORSPACE_DEFAULT; /* do we need to set this ? */
dev->pix_format.field = V4L2_FIELD_NONE;
set_default_format(dev);
dev->buffer_size = PAGE_ALIGN(dev->pix_format.sizeimage);
dev->pix_format.sizeimage = dev->buffer_size;
dprintk("buffer_size = %ld (=%d)\n", dev->buffer_size,
dev->pix_format.sizeimage);