本文整理汇总了C++中GstVdpDevice::vdp_video_mixer_create方法的典型用法代码示例。如果您正苦于以下问题：C++ GstVdpDevice::vdp_video_mixer_create方法的具体用法？C++ GstVdpDevice::vdp_video_mixer_create怎么用？C++ GstVdpDevice::vdp_video_mixer_create使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类GstVdpDevice的用法示例。
在下文中一共展示了GstVdpDevice::vdp_video_mixer_create方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1:
static GstFlowReturn
gst_vdp_vpp_create_mixer (GstVdpVideoPostProcess * vpp)
{
#define VDP_NUM_MIXER_PARAMETER 3
#define MAX_NUM_FEATURES 5
VdpStatus status;
GstVdpDevice *device;
VdpVideoMixerFeature features[5];
guint n_features = 0;
VdpVideoMixerParameter parameters[VDP_NUM_MIXER_PARAMETER] = {
VDP_VIDEO_MIXER_PARAMETER_VIDEO_SURFACE_WIDTH,
VDP_VIDEO_MIXER_PARAMETER_VIDEO_SURFACE_HEIGHT,
VDP_VIDEO_MIXER_PARAMETER_CHROMA_TYPE
};
const void *parameter_values[VDP_NUM_MIXER_PARAMETER];
parameter_values[0] = &vpp->width;
parameter_values[1] = &vpp->height;
parameter_values[2] = &vpp->chroma_type;
if (gst_vdp_vpp_is_interlaced (vpp)
&& vpp->method != GST_VDP_DEINTERLACE_METHOD_BOB) {
features[n_features++] =
gst_vdp_feature_from_deinterlace_method (vpp->method);
}
if (vpp->noise_reduction > 0.0)
features[n_features++] = VDP_VIDEO_MIXER_FEATURE_NOISE_REDUCTION;
if (vpp->sharpening != 0.0)
features[n_features++] = VDP_VIDEO_MIXER_FEATURE_SHARPNESS;
if (vpp->inverse_telecine)
features[n_features++] = VDP_VIDEO_MIXER_FEATURE_INVERSE_TELECINE;
device = vpp->device;
status =
device->vdp_video_mixer_create (device->device, n_features, features,
VDP_NUM_MIXER_PARAMETER, parameters, parameter_values, &vpp->mixer);
if (status != VDP_STATUS_OK) {
GST_ELEMENT_ERROR (vpp, RESOURCE, READ,
("Could not create vdpau video mixer"),
("Error returned from vdpau was: %s",
device->vdp_get_error_string (status)));
return GST_FLOW_ERROR;
}
if (vpp->noise_reduction > 0.0) {
gst_vdp_vpp_set_attribute_float (vpp,
VDP_VIDEO_MIXER_ATTRIBUTE_NOISE_REDUCTION_LEVEL, vpp->noise_reduction);
}
if (vpp->sharpening != 0.0) {
gst_vdp_vpp_set_attribute_float (vpp,
VDP_VIDEO_MIXER_ATTRIBUTE_SHARPNESS_LEVEL, vpp->sharpening);
}
return GST_FLOW_OK;
}