-/*\r
-* copyright (c) 2010 Sveriges Television AB <info@casparcg.com>\r
-*\r
-* This file is part of CasparCG.\r
-*\r
-* CasparCG is free software: you can redistribute it and/or modify\r
-* it under the terms of the GNU General Public License as published by\r
-* the Free Software Foundation, either version 3 of the License, or\r
-* (at your option) any later version.\r
-*\r
-* CasparCG is distributed in the hope that it will be useful,\r
-* but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-* GNU General Public License for more details.\r
-\r
-* You should have received a copy of the GNU General Public License\r
-* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.\r
-*\r
-*/ \r
-#include "../../stdafx.h"\r
-\r
-#include "transition_producer.h"\r
-\r
-#include <core/video_format.h>\r
-\r
-#include <mixer/frame/draw_frame.h>\r
-#include <mixer/image/image_transform.h>\r
-#include <mixer/audio/audio_mixer.h>\r
-#include <mixer/audio/audio_transform.h>\r
-\r
-namespace caspar { namespace core { \r
-\r
-struct transition_producer::implementation : boost::noncopyable\r
-{ \r
- printer parent_printer_;\r
- unsigned short 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<draw_frame>> frame_buffer_;\r
- \r
- implementation(const safe_ptr<frame_producer>& dest, const transition_info& info) \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(draw_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
-\r
- 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
- {\r
- source_producer_ = producer;\r
- source_producer_->set_parent_printer(std::bind(&implementation::source_print, this));\r
- }\r
-\r
- safe_ptr<draw_frame> receive()\r
- {\r
- if(current_frame_++ >= info_.duration)\r
- return draw_frame::eof();\r
-\r
- auto source = draw_frame::empty();\r
- auto dest = draw_frame::empty();\r
-\r
- tbb::parallel_invoke\r
- (\r
- [&]{dest = render_sub_frame(dest_producer_);},\r
- [&]{source = render_sub_frame(source_producer_);}\r
- );\r
-\r
- return compose(dest, source);\r
- }\r
- \r
- safe_ptr<draw_frame> render_sub_frame(safe_ptr<frame_producer>& producer)\r
- {\r
- if(producer == frame_producer::empty())\r
- return draw_frame::eof();\r
-\r
- auto frame = draw_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
-\r
- if(frame == draw_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
- }\r
- \r
- safe_ptr<draw_frame> compose(const safe_ptr<draw_frame>& dest_frame, const safe_ptr<draw_frame>& src_frame) \r
- { \r
- if(dest_frame == draw_frame::eof() && src_frame == draw_frame::eof())\r
- return draw_frame::eof();\r
-\r
- if(info_.type == transition::cut) \r
- return src_frame != draw_frame::eof() ? src_frame : draw_frame::empty();\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
- \r
- // For interlaced transitions. Seperate fields into seperate frames which are transitioned accordingly.\r
- \r
- auto s_frame1 = make_safe<draw_frame>(src_frame);\r
- auto s_frame2 = make_safe<draw_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
-\r
- auto d_frame1 = make_safe<draw_frame>(dest_frame);\r
- auto d_frame2 = make_safe<draw_frame>(dest_frame);\r
- \r
- d_frame1->get_audio_transform().set_has_audio(false);\r
- d_frame2->get_audio_transform().set_gain(alpha);\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
- }\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
- }\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
-\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
- }\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
- }\r
- \r
- auto s_frame = s_frame1->get_image_transform() == s_frame2->get_image_transform() ? s_frame2 : draw_frame::interlace(s_frame1, s_frame2, format_desc_.mode);\r
- auto d_frame = draw_frame::interlace(d_frame1, d_frame2, format_desc_.mode);\r
-\r
- return draw_frame(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<draw_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
-\r
-}}\r
-\r
+/*
+* Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
+*
+* This file is part of CasparCG (www.casparcg.com).
+*
+* CasparCG is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* CasparCG is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
+*
+* Author: Robert Nagy, ronag89@gmail.com
+*/
+
+#include "../../stdafx.h"
+
+#include "transition_producer.h"
+
+#include "../frame_producer.h"
+#include "../../frame/draw_frame.h"
+#include "../../frame/frame_transform.h"
+#include "../../monitor/monitor.h"
+
+#include <tbb/parallel_invoke.h>
+
+namespace caspar { namespace core {
+
+class transition_producer : public frame_producer_base
+{
+ monitor::basic_subject event_subject_;
+ const field_mode mode_;
+ int current_frame_;
+
+ const transition_info info_;
+
+ spl::shared_ptr<frame_producer> dest_producer_;
+ spl::shared_ptr<frame_producer> source_producer_;
+
+ bool paused_;
+
+public:
+ explicit transition_producer(const field_mode& mode, const spl::shared_ptr<frame_producer>& dest, const transition_info& info)
+ : mode_(mode)
+ , current_frame_(0)
+ , info_(info)
+ , dest_producer_(dest)
+ , source_producer_(frame_producer::empty())
+ , paused_(false)
+ {
+ dest->subscribe(event_subject_);
+
+ CASPAR_LOG(info) << print() << L" Initialized";
+ }
+
+ // frame_producer
+
+ void leading_producer(const spl::shared_ptr<frame_producer>& producer) override
+ {
+ source_producer_ = producer;
+ }
+
+ draw_frame receive_impl() override
+ {
+ if(current_frame_ >= info_.duration)
+ {
+ source_producer_ = core::frame_producer::empty();
+ return dest_producer_->receive();
+ }
+
+ current_frame_ += 1;
+
+ auto dest = draw_frame::empty();
+ auto source = draw_frame::empty();
+
+ tbb::parallel_invoke(
+ [&]
+ {
+ dest = dest_producer_->receive();
+ if(dest == core::draw_frame::late())
+ dest = dest_producer_->last_frame();
+ },
+ [&]
+ {
+ source = source_producer_->receive();
+ if(source == core::draw_frame::late())
+ source = source_producer_->last_frame();
+ });
+
+ event_subject_ << monitor::event("transition/frame") % current_frame_ % info_.duration
+ << monitor::event("transition/type") % [&]() -> std::string
+ {
+ switch(info_.type.value())
+ {
+ case transition_type::mix: return "mix";
+ case transition_type::wipe: return "wipe";
+ case transition_type::slide: return "slide";
+ case transition_type::push: return "push";
+ case transition_type::cut: return "cut";
+ default: return "n/a";
+ }
+ }();
+
+ return compose(dest, source);
+ }
+
+ draw_frame last_frame() override
+ {
+ if(current_frame_ >= info_.duration)
+ return dest_producer_->last_frame();
+
+ return frame_producer_base::last_frame();
+ }
+
+ uint32_t nb_frames() const override
+ {
+ return dest_producer_->nb_frames();
+ }
+
+ std::wstring print() const override
+ {
+ return L"transition[" + source_producer_->print() + L"=>" + dest_producer_->print() + L"]";
+ }
+
+ std::wstring name() const override
+ {
+ return L"transition";
+ }
+
+ boost::property_tree::wptree info() const override
+ {
+ return dest_producer_->info();
+ }
+
+ boost::unique_future<std::wstring> call(const std::wstring& str) override
+ {
+ return dest_producer_->call(str);
+ }
+
+ // transition_producer
+
+ draw_frame compose(draw_frame dest_frame, draw_frame src_frame) const
+ {
+ if(info_.type == transition_type::cut)
+ return src_frame;
+
+ const double delta1 = info_.tweener(current_frame_*2-1, 0.0, 1.0, static_cast<double>(info_.duration*2));
+ const double delta2 = info_.tweener(current_frame_*2, 0.0, 1.0, static_cast<double>(info_.duration*2));
+
+ const double dir = info_.direction == transition_direction::from_left ? 1.0 : -1.0;
+
+ // For interlaced transitions. Seperate fields into seperate frames which are transitioned accordingly.
+
+ src_frame.transform().audio_transform.volume = 1.0-delta2;
+ auto s_frame1 = src_frame;
+ auto s_frame2 = src_frame;
+
+ dest_frame.transform().audio_transform.volume = delta2;
+ auto d_frame1 = dest_frame;
+ auto d_frame2 = dest_frame;
+
+ if(info_.type == transition_type::mix)
+ {
+ d_frame1.transform().image_transform.opacity = delta1;
+ d_frame1.transform().image_transform.is_mix = true;
+ d_frame2.transform().image_transform.opacity = delta2;
+ d_frame2.transform().image_transform.is_mix = true;
+
+ s_frame1.transform().image_transform.opacity = 1.0-delta1;
+ s_frame1.transform().image_transform.is_mix = true;
+ s_frame2.transform().image_transform.opacity = 1.0-delta2;
+ s_frame2.transform().image_transform.is_mix = true;
+ }
+ if(info_.type == transition_type::slide)
+ {
+ d_frame1.transform().image_transform.fill_translation[0] = (-1.0+delta1)*dir;
+ d_frame2.transform().image_transform.fill_translation[0] = (-1.0+delta2)*dir;
+ }
+ else if(info_.type == transition_type::push)
+ {
+ d_frame1.transform().image_transform.fill_translation[0] = (-1.0+delta1)*dir;
+ d_frame2.transform().image_transform.fill_translation[0] = (-1.0+delta2)*dir;
+
+ s_frame1.transform().image_transform.fill_translation[0] = (0.0+delta1)*dir;
+ s_frame2.transform().image_transform.fill_translation[0] = (0.0+delta2)*dir;
+ }
+ else if(info_.type == transition_type::wipe)
+ {
+ d_frame1.transform().image_transform.clip_scale[0] = delta1;
+ d_frame2.transform().image_transform.clip_scale[0] = delta2;
+ }
+
+ const auto s_frame = s_frame1.transform() == s_frame2.transform() ? s_frame2 : draw_frame::interlace(s_frame1, s_frame2, mode_);
+ const auto d_frame = d_frame1.transform() == d_frame2.transform() ? d_frame2 : draw_frame::interlace(d_frame1, d_frame2, mode_);
+
+ return draw_frame::over(s_frame, d_frame);
+ }
+
+ void subscribe(const monitor::observable::observer_ptr& o) override
+ {
+ event_subject_.subscribe(o);
+ }
+
+ void unsubscribe(const monitor::observable::observer_ptr& o) override
+ {
+ event_subject_.unsubscribe(o);
+ }
+};
+
+spl::shared_ptr<frame_producer> create_transition_producer(const field_mode& mode, const spl::shared_ptr<frame_producer>& destination, const transition_info& info)
+{
+ return spl::make_shared<transition_producer>(mode, destination, info);
+}
+
+}}
+
projects / casparcg / blobdiff