video_format_desc video_channel::get_video_format_desc() const{return impl_->context_.get_format_desc();}\r
void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
std::wstring video_channel::print() const { return impl_->print();}\r
video_format_desc video_channel::get_video_format_desc() const{return impl_->context_.get_format_desc();}\r
void video_channel::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}\r
std::wstring video_channel::print() const { return impl_->print();}\r