#include <core/producer/frame/image_transform.h>\r
#include <core/producer/frame/audio_transform.h>\r
\r
+#include <tbb/parallel_invoke.h>\r
+\r
namespace caspar { namespace core { \r
\r
-struct transition_producer::implementation : boost::noncopyable\r
+struct transition_producer : public frame_producer\r
{ \r
- printer parent_printer_;\r
- unsigned short current_frame_;\r
+ const video_mode::type mode_;\r
+ unsigned int current_frame_;\r
\r
const transition_info info_;\r
\r
safe_ptr<frame_producer> dest_producer_;\r
safe_ptr<frame_producer> source_producer_;\r
\r
- std::shared_ptr<frame_factory> frame_factory_;\r
- video_format_desc format_desc_;\r
-\r
- std::vector<safe_ptr<basic_frame>> frame_buffer_;\r
- \r
- implementation(const safe_ptr<frame_producer>& dest, const transition_info& info) \r
- : current_frame_(0)\r
+ safe_ptr<basic_frame> last_frame_;\r
+ \r
+ explicit transition_producer(const video_mode::type& mode, const safe_ptr<frame_producer>& dest, const transition_info& info) \r
+ : mode_(mode)\r
+ , current_frame_(0)\r
, info_(info)\r
, dest_producer_(dest)\r
, source_producer_(frame_producer::empty())\r
- {\r
- dest_producer_->set_parent_printer(std::bind(&implementation::dest_print, this));\r
- frame_buffer_.push_back(basic_frame::empty());\r
- }\r
- \r
- void initialize(const safe_ptr<frame_factory>& frame_factory)\r
- {\r
- dest_producer_->initialize(frame_factory);\r
- frame_factory_ = frame_factory;\r
- format_desc_ = frame_factory_->get_video_format_desc();\r
- }\r
-\r
- virtual void set_parent_printer(const printer& parent_printer) \r
- {\r
- parent_printer_ = parent_printer;\r
- }\r
+ , last_frame_(basic_frame::empty()){}\r
+ \r
+ // frame_producer\r
\r
- safe_ptr<frame_producer> get_following_producer() const\r
+ virtual safe_ptr<frame_producer> get_following_producer() const\r
{\r
return dest_producer_;\r
}\r
\r
- void set_leading_producer(const safe_ptr<frame_producer>& producer)\r
+ virtual void set_leading_producer(const safe_ptr<frame_producer>& producer)\r
{\r
source_producer_ = producer;\r
- source_producer_->set_parent_printer(std::bind(&implementation::source_print, this));\r
}\r
\r
- safe_ptr<basic_frame> receive()\r
+ virtual safe_ptr<basic_frame> receive(int hints)\r
{\r
if(current_frame_++ >= info_.duration)\r
return basic_frame::eof();\r
-\r
- auto source = basic_frame::empty();\r
+ \r
auto dest = basic_frame::empty();\r
+ auto source = basic_frame::empty();\r
\r
- tbb::parallel_invoke\r
- (\r
- [&]{dest = render_sub_frame(dest_producer_);},\r
- [&]{source = render_sub_frame(source_producer_);}\r
- );\r
+ tbb::parallel_invoke(\r
+ [&]\r
+ {\r
+ dest = receive_and_follow(dest_producer_, hints);\r
+ if(dest == core::basic_frame::late())\r
+ dest = dest_producer_->last_frame();\r
+ },\r
+ [&]\r
+ {\r
+ source = receive_and_follow(source_producer_, hints);\r
+ if(source == core::basic_frame::late())\r
+ source = source_producer_->last_frame();\r
+ });\r
\r
- return compose(dest, source);\r
+ return last_frame_ = compose(dest, source);\r
}\r
- \r
- safe_ptr<basic_frame> render_sub_frame(safe_ptr<frame_producer>& producer)\r
+\r
+ virtual safe_ptr<core::basic_frame> last_frame() const\r
{\r
- if(producer == frame_producer::empty())\r
- return basic_frame::eof();\r
+ return disable_audio(last_frame_);\r
+ }\r
\r
- auto frame = basic_frame::eof();\r
- try\r
- {\r
- frame = producer->receive();\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- producer = frame_producer::empty();\r
- CASPAR_LOG(warning) << print() << " Failed to receive frame. Removed producer from transition.";\r
- }\r
+ virtual int64_t nb_frames() const \r
+ {\r
+ return get_following_producer()->nb_frames();\r
+ }\r
\r
- if(frame == basic_frame::eof())\r
- {\r
- try\r
- {\r
- auto following = producer->get_following_producer();\r
- following->initialize(safe_ptr<frame_factory>(frame_factory_));\r
- following->set_leading_producer(producer);\r
- producer = std::move(following);\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- producer = frame_producer::empty();\r
- CASPAR_LOG(warning) << print() << " Failed to initialize following producer.";\r
- }\r
-\r
- return render_sub_frame(producer);\r
- }\r
- return frame;\r
+ virtual std::wstring print() const\r
+ {\r
+ return L"transition[" + source_producer_->print() + L"|" + dest_producer_->print() + L"]";\r
}\r
- \r
+ \r
+ // transition_producer\r
+ \r
safe_ptr<basic_frame> compose(const safe_ptr<basic_frame>& dest_frame, const safe_ptr<basic_frame>& src_frame) \r
{ \r
- if(dest_frame == basic_frame::eof() && src_frame == basic_frame::eof())\r
- return basic_frame::eof();\r
-\r
if(info_.type == transition::cut) \r
- return src_frame != basic_frame::eof() ? src_frame : basic_frame::empty();\r
+ return src_frame;\r
\r
- double alpha = static_cast<double>(current_frame_)/static_cast<double>(info_.duration);\r
- double half_alpha_step = 0.5*1.0/static_cast<double>(info_.duration);\r
- \r
- double dir = info_.direction == transition_direction::from_left ? 1.0 : -1.0; \r
+ const double delta1 = info_.tweener(current_frame_*2-1, 0.0, 1.0, info_.duration*2);\r
+ const double delta2 = info_.tweener(current_frame_*2, 0.0, 1.0, info_.duration*2); \r
+\r
+ const double dir = info_.direction == transition_direction::from_left ? 1.0 : -1.0; \r
\r
// For interlaced transitions. Seperate fields into seperate frames which are transitioned accordingly.\r
\r
auto s_frame2 = make_safe<basic_frame>(src_frame);\r
\r
s_frame1->get_audio_transform().set_has_audio(false);\r
- s_frame2->get_audio_transform().set_gain(1.0-alpha);\r
+ s_frame2->get_audio_transform().set_gain(1.0-delta2);\r
\r
auto d_frame1 = make_safe<basic_frame>(dest_frame);\r
auto d_frame2 = make_safe<basic_frame>(dest_frame);\r
\r
d_frame1->get_audio_transform().set_has_audio(false);\r
- d_frame2->get_audio_transform().set_gain(alpha);\r
+ d_frame2->get_audio_transform().set_gain(delta2);\r
\r
if(info_.type == transition::mix)\r
{\r
- d_frame1->get_image_transform().set_opacity(alpha-half_alpha_step); \r
- d_frame2->get_image_transform().set_opacity(alpha); \r
+ d_frame1->get_image_transform().set_opacity(delta1); \r
+ d_frame2->get_image_transform().set_opacity(delta2);\r
+\r
+ //s_frame1->get_image_transform().set_opacity(1.0-delta1); \r
+ //s_frame2->get_image_transform().set_opacity(1.0-delta2); \r
}\r
else if(info_.type == transition::slide)\r
{\r
- d_frame1->get_image_transform().set_fill_translation((-1.0+alpha-half_alpha_step)*dir, 0.0); \r
- d_frame2->get_image_transform().set_fill_translation((-1.0+alpha)*dir, 0.0); \r
+ d_frame1->get_image_transform().set_fill_translation((-1.0+delta1)*dir, 0.0); \r
+ d_frame2->get_image_transform().set_fill_translation((-1.0+delta2)*dir, 0.0); \r
}\r
else if(info_.type == transition::push)\r
{\r
- d_frame1->get_image_transform().set_fill_translation((-1.0+alpha-half_alpha_step)*dir, 0.0);\r
- d_frame2->get_image_transform().set_fill_translation((-1.0+alpha)*dir, 0.0);\r
+ d_frame1->get_image_transform().set_fill_translation((-1.0+delta1)*dir, 0.0);\r
+ d_frame2->get_image_transform().set_fill_translation((-1.0+delta2)*dir, 0.0);\r
\r
- s_frame1->get_image_transform().set_fill_translation((0.0+alpha-half_alpha_step)*dir, 0.0); \r
- s_frame2->get_image_transform().set_fill_translation((0.0+alpha)*dir, 0.0); \r
+ s_frame1->get_image_transform().set_fill_translation((0.0+delta1)*dir, 0.0); \r
+ s_frame2->get_image_transform().set_fill_translation((0.0+delta2)*dir, 0.0); \r
}\r
else if(info_.type == transition::wipe) \r
{\r
- d_frame1->get_image_transform().set_key_scale(alpha-half_alpha_step, 1.0); \r
- d_frame2->get_image_transform().set_key_scale(alpha, 1.0); \r
+ d_frame1->get_image_transform().set_clip_scale(delta1, 1.0); \r
+ d_frame2->get_image_transform().set_clip_scale(delta2, 1.0); \r
}\r
+ \r
+ const auto s_frame = s_frame1->get_image_transform() == s_frame2->get_image_transform() ? s_frame2 : basic_frame::interlace(s_frame1, s_frame2, mode_);\r
+ const auto d_frame = d_frame1->get_image_transform() == d_frame2->get_image_transform() ? d_frame2 : basic_frame::interlace(d_frame1, d_frame2, mode_);\r
\r
- auto s_frame = s_frame1->get_image_transform() == s_frame2->get_image_transform() ? s_frame2 : basic_frame::interlace(s_frame1, s_frame2, format_desc_.mode);\r
- auto d_frame = basic_frame::interlace(d_frame1, d_frame2, format_desc_.mode);\r
-\r
- return basic_frame(s_frame, d_frame);\r
+ return basic_frame::combine(s_frame, d_frame);\r
}\r
-\r
- std::wstring print() const\r
- {\r
- return (parent_printer_ ? parent_printer_() + L"/" : L"") + L"transition[" + info_.name() + L":" + boost::lexical_cast<std::wstring>(info_.duration) + L"]";\r
- }\r
-\r
- std::wstring source_print() const { return print() + L"/source";}\r
- std::wstring dest_print() const { return print() + L"/dest";}\r
};\r
\r
-transition_producer::transition_producer(transition_producer&& other) : impl_(std::move(other.impl_)){}\r
-transition_producer::transition_producer(const safe_ptr<frame_producer>& dest, const transition_info& info) : impl_(new implementation(dest, info)){}\r
-safe_ptr<basic_frame> transition_producer::receive(){return impl_->receive();}\r
-safe_ptr<frame_producer> transition_producer::get_following_producer() const{return impl_->get_following_producer();}\r
-void transition_producer::set_leading_producer(const safe_ptr<frame_producer>& producer) { impl_->set_leading_producer(producer); }\r
-void transition_producer::initialize(const safe_ptr<frame_factory>& frame_factory) { impl_->initialize(frame_factory);}\r
-void transition_producer::set_parent_printer(const printer& parent_printer) {impl_->set_parent_printer(parent_printer);}\r
-std::wstring transition_producer::print() const { return impl_->print();}\r
+safe_ptr<frame_producer> create_transition_producer(const video_mode::type& mode, const safe_ptr<frame_producer>& destination, const transition_info& info)\r
+{\r
+ return make_safe<transition_producer>(mode, destination, info);\r
+}\r
\r
}}\r
\r