+/*\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
+\r
#include "../stdafx.h"\r
\r
#include "layer.h"\r
-#include "frame_producer.h"\r
-\r
-#include <common/concurrency/executor.h>\r
-#include <common/exception/exceptions.h>\r
-#include <common/utility/assert.h>\r
-#include <common/utility/printer.h>\r
-\r
-#include "../producer/frame/basic_frame.h"\r
-#include "../producer/frame/audio_transform.h"\r
\r
-#include <tbb/spin_mutex.h>\r
+#include "frame_producer.h"\r
+#include "frame/basic_frame.h"\r
\r
namespace caspar { namespace core {\r
+ \r
+struct layer::implementation\r
+{ \r
+ safe_ptr<frame_producer> foreground_;\r
+ safe_ptr<frame_producer> background_;\r
+ int64_t frame_number_;\r
+ int auto_play_delta_;\r
+ bool is_paused_;\r
\r
-class frame_producer_remover\r
-{\r
- executor executor_;\r
-\r
- void do_remove(safe_ptr<frame_producer>& producer)\r
+public:\r
+ implementation() \r
+ : foreground_(frame_producer::empty())\r
+ , background_(frame_producer::empty())\r
+ , frame_number_(0)\r
+ , auto_play_delta_(-1)\r
+ , is_paused_(false)\r
{\r
- auto name = producer->print();\r
- producer = frame_producer::empty();\r
- CASPAR_LOG(info) << name << L" Removed.";\r
}\r
-\r
-public:\r
-\r
- frame_producer_remover() : executor_(L"frame_producer_remover")\r
+ \r
+ void pause()\r
{\r
- executor_.start();\r
+ is_paused_ = true;\r
}\r
\r
- void remove(safe_ptr<frame_producer>&& producer)\r
+ void resume()\r
{\r
- CASPAR_VERIFY(producer.unique());\r
- executor_.begin_invoke(std::bind(&frame_producer_remover::do_remove, this, std::move(producer)));\r
+ is_paused_ = false;\r
}\r
-};\r
-\r
-frame_producer_remover g_remover;\r
\r
-struct layer::implementation : boost::noncopyable\r
-{ \r
- mutable tbb::spin_mutex printer_mutex_;\r
- printer parent_printer_;\r
- int index_;\r
- \r
- safe_ptr<frame_producer> foreground_;\r
- safe_ptr<frame_producer> background_;\r
- safe_ptr<basic_frame> last_frame_;\r
- bool is_paused_;\r
-public:\r
- implementation(int index, const printer& parent_printer) \r
- : parent_printer_(parent_printer)\r
- , index_(index)\r
- , foreground_(frame_producer::empty())\r
- , background_(frame_producer::empty())\r
- , last_frame_(basic_frame::empty())\r
- , is_paused_(false){}\r
- \r
- void load(const safe_ptr<frame_producer>& frame_producer, bool play_on_load, bool preview)\r
+ void load(const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
{ \r
- background_ = frame_producer;\r
- is_paused_ = false;\r
+ background_ = producer;\r
+ auto_play_delta_ = auto_play_delta;\r
\r
- if(preview)\r
- {\r
+ if(preview) // Play the first frame and pause.\r
+ { \r
play();\r
receive();\r
pause();\r
}\r
-\r
- if(play_on_load)\r
- play(); \r
}\r
-\r
+ \r
void play()\r
{ \r
- if(!is_paused_) \r
+ if(background_ != frame_producer::empty())\r
{\r
background_->set_leading_producer(foreground_);\r
- foreground_ = background_;\r
- CASPAR_LOG(info) << foreground_->print() << L" Added.";\r
- background_ = frame_producer::empty();\r
+ \r
+ foreground_ = background_;\r
+ background_ = frame_producer::empty();\r
+ frame_number_ = 0;\r
+ auto_play_delta_ = -1; \r
}\r
- is_paused_ = false;\r
- }\r
\r
- void pause()\r
- {\r
- is_paused_ = true;\r
+ is_paused_ = false;\r
}\r
-\r
+ \r
void stop()\r
{\r
- pause();\r
- last_frame_ = basic_frame::empty();\r
- foreground_ = frame_producer::empty();\r
+ foreground_ = frame_producer::empty();\r
+ background_ = background_;\r
+ frame_number_ = 0;\r
+ auto_play_delta_ = -1;\r
+\r
+ is_paused_ = true;\r
}\r
\r
safe_ptr<basic_frame> receive()\r
{ \r
- if(is_paused_)\r
- {\r
- last_frame_->get_audio_transform().set_gain(0.0);\r
- return last_frame_;\r
- }\r
-\r
try\r
{\r
- last_frame_ = foreground_->receive(); \r
- if(last_frame_ == basic_frame::eof())\r
- {\r
- CASPAR_VERIFY(foreground_ != frame_producer::empty());\r
-\r
- auto following = foreground_->get_following_producer();\r
- following->set_leading_producer(foreground_);\r
- following->set_parent_printer([=]{return print();});\r
- g_remover.remove(std::move(foreground_));\r
- foreground_ = following;\r
- CASPAR_LOG(info) << foreground_->print() << L" Added.";\r
+ if(is_paused_)\r
+ return disable_audio(foreground_->last_frame());\r
+ \r
+ auto frame = receive_and_follow(foreground_, frame_producer::NO_HINT);\r
+ if(frame == core::basic_frame::late())\r
+ return foreground_->last_frame();\r
\r
- last_frame_ = receive();\r
+ auto frames_left = foreground_->nb_frames() - (++frame_number_) - auto_play_delta_;\r
+ if(auto_play_delta_ > -1 && frames_left < 1)\r
+ {\r
+ play();\r
+ return receive();\r
}\r
+ \r
+ return frame;\r
}\r
catch(...)\r
{\r
- CASPAR_LOG(error) << print() << L" Unhandled Exception: ";\r
CASPAR_LOG_CURRENT_EXCEPTION();\r
stop();\r
+ return core::basic_frame::empty();\r
}\r
+ }\r
\r
- return last_frame_;\r
+ layer_status status() const\r
+ {\r
+ layer_status status;\r
+ status.foreground = foreground_->print();\r
+ status.background = background_->print();\r
+ status.is_paused = is_paused_;\r
+ status.total_frames = foreground_->nb_frames();\r
+ status.current_frame = frame_number_;\r
+\r
+ return status;\r
}\r
- \r
- std::wstring print() const\r
+\r
+ bool empty() const\r
{\r
- tbb::spin_mutex::scoped_lock lock(printer_mutex_); // Child-producers may call print asynchronously to the producer thread.\r
- return (parent_printer_ ? parent_printer_() + L"/" : L"") + L"layer[" + boost::lexical_cast<std::wstring>(index_) + L"]";\r
+ return background_ == core::frame_producer::empty() && foreground_ == core::frame_producer::empty();\r
}\r
};\r
\r
-layer::layer(int index, const printer& parent_printer) : impl_(new implementation(index, parent_printer)){}\r
+layer::layer() : impl_(new implementation()){}\r
layer::layer(layer&& other) : impl_(std::move(other.impl_)){}\r
layer& layer::operator=(layer&& other)\r
{\r
impl_ = std::move(other.impl_);\r
return *this;\r
}\r
-void layer::swap(layer& other)\r
+layer::layer(const layer& other) : impl_(new implementation(*other.impl_)){}\r
+layer& layer::operator=(const layer& other)\r
{\r
+ layer temp(other);\r
+ temp.swap(*this);\r
+ return *this;\r
+}\r
+void layer::swap(layer& other)\r
+{ \r
impl_.swap(other.impl_);\r
- // Printer state is not swapped.\r
- tbb::spin_mutex::scoped_lock lock(impl_->printer_mutex_);\r
- std::swap(impl_->parent_printer_, other.impl_->parent_printer_);\r
- std::swap(impl_->index_, other.impl_->index_);\r
}\r
-void layer::load(const safe_ptr<frame_producer>& frame_producer, bool play_on_load, bool preview){return impl_->load(frame_producer, play_on_load, preview);} \r
+void layer::load(const safe_ptr<frame_producer>& frame_producer, bool preview, int auto_play_delta){return impl_->load(frame_producer, preview, auto_play_delta);} \r
void layer::play(){impl_->play();}\r
void layer::pause(){impl_->pause();}\r
void layer::stop(){impl_->stop();}\r
+bool layer::is_paused() const{return impl_->is_paused_;}\r
+int64_t layer::frame_number() const{return impl_->frame_number_;}\r
+layer_status layer::status() const {return impl_->status();}\r
safe_ptr<basic_frame> layer::receive() {return impl_->receive();}\r
safe_ptr<frame_producer> layer::foreground() const { return impl_->foreground_;}\r
safe_ptr<frame_producer> layer::background() const { return impl_->background_;}\r
-std::wstring layer::print() const { return impl_->print();}\r
+bool layer::empty() const {return impl_->empty();}\r
}}
\ No newline at end of file
projects / casparcg / blobdiff