NekoCWD/libcamera
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libcamera: v4l2_device: s_format: Return the device format

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Return the device format actually applied to the device on setFormat().

Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Jacopo Mondi <jacopo@jmondi.org>
This commit is contained in:
Jacopo Mondi 2019-02-05 08:45:27 +01:00
parent f7e75d9e70
commit cbbc315fe9
1 changed files with 28 additions and 0 deletions
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28
src/libcamera/v4l2_device.cpp
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@ -289,6 +289,10 @@ int V4L2Device::getFormat(V4L2DeviceFormat *format)
/**
* \brief Configure an image format on the V4L2 device
*
* Apply the supplied \a format to the device, and return the actually
* applied format parameters, as \ref V4L2Device::getFormat would do.
*
* \return 0 for success, a negative error code otherwise
*/
int V4L2Device::setFormat(V4L2DeviceFormat *format)
@ -340,6 +344,17 @@ int V4L2Device::setFormatSingleplane(V4L2DeviceFormat *format)
return ret;
}
/*
* Return to caller the format actually applied on the device,
* which might differ from the requested one.
*/
format->width = pix->width;
format->height = pix->height;
format->fourcc = pix->pixelformat;
format->planesCount = 1;
format->planes[0].bpl = pix->bytesperline;
format->planes[0].size = pix->sizeimage;
return 0;
}
@ -394,6 +409,19 @@ int V4L2Device::setFormatMultiplane(V4L2DeviceFormat *format)
return ret;
}
/*
* Return to caller the format actually applied on the device,
* which might differ from the requested one.
*/
format->width = pix->width;
format->height = pix->height;
format->fourcc = pix->pixelformat;
format->planesCount = pix->num_planes;
for (unsigned int i = 0; i < format->planesCount; ++i) {
format->planes[i].bpl = pix->plane_fmt[i].bytesperline;
format->planes[i].size = pix->plane_fmt[i].sizeimage;
}
return 0;
}