+/*\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
\r
-#include "../mixer/frame/draw_frame.h"\r
-#include "../mixer/image/image_mixer.h"\r
-#include "../mixer/audio/audio_mixer.h"\r
-#include "../producer/frame_producer.h"\r
+#include "frame_producer.h"\r
\r
-#include "../video_format.h"\r
+#include "frame/basic_frame.h"\r
\r
-#include <common/utility/assert.h>\r
\r
namespace caspar { namespace core {\r
-\r
-struct layer::implementation : boost::noncopyable\r
-{ \r
+ \r
+struct layer::implementation\r
+{ \r
safe_ptr<frame_producer> foreground_;\r
safe_ptr<frame_producer> background_;\r
- safe_ptr<draw_frame> last_frame_;\r
bool is_paused_;\r
-\r
+ int auto_play_delta_;\r
+ int64_t frame_number_;\r
public:\r
implementation() \r
: foreground_(frame_producer::empty())\r
, background_(frame_producer::empty())\r
- , last_frame_(draw_frame::empty())\r
- , is_paused_(false){}\r
+ , is_paused_(false)\r
+ , auto_play_delta_(-1){}\r
\r
- void load(const safe_ptr<frame_producer>& frame_producer, bool play_on_load)\r
- { \r
- background_ = frame_producer;\r
- if(play_on_load)\r
- play(); \r
- }\r
+ void pause(){is_paused_ = true;}\r
+ void resume(){is_paused_ = false;}\r
\r
- void preview(const safe_ptr<frame_producer>& frame_producer)\r
- {\r
- stop();\r
- load(frame_producer, false); \r
- try\r
- {\r
- last_frame_ = frame_producer->receive();\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- clear();\r
+ void load(const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
+ { \r
+ auto_play_delta_ = auto_play_delta;\r
+\r
+ background_ = producer;\r
+\r
+ if(preview) // Play the first frame and pause.\r
+ { \r
+ play();\r
+ receive();\r
+ pause();\r
}\r
}\r
\r
void play()\r
{ \r
- if(is_paused_) \r
- is_paused_ = false;\r
- else\r
+ if(background_ != frame_producer::empty())\r
{\r
background_->set_leading_producer(foreground_);\r
foreground_ = background_;\r
+ frame_number_ = 0;\r
background_ = frame_producer::empty();\r
}\r
+ resume();\r
}\r
-\r
- void pause()\r
- {\r
- is_paused_ = true;\r
- }\r
-\r
+ \r
void stop()\r
{\r
- pause();\r
- last_frame_ = draw_frame::empty();\r
foreground_ = frame_producer::empty();\r
}\r
-\r
- void clear()\r
- {\r
- stop();\r
- background_ = frame_producer::empty();\r
- }\r
- \r
- safe_ptr<draw_frame> receive()\r
+ \r
+ safe_ptr<basic_frame> receive()\r
{ \r
if(is_paused_)\r
- return last_frame_;\r
-\r
- try\r
+ return foreground_->last_frame();\r
+ \r
+ auto frame = receive_and_follow(foreground_);\r
+ if(frame == core::basic_frame::late())\r
+ return foreground_->last_frame();\r
+ \r
+ ++frame_number_;\r
+\r
+ if(auto_play_delta_ >= 0)\r
{\r
- last_frame_ = foreground_->receive(); \r
- if(last_frame_ == draw_frame::eof())\r
- {\r
- CASPAR_ASSERT(foreground_ != frame_producer::empty());\r
+ const auto frames_left = foreground_->nb_frames() - frame_number_ - auto_play_delta_;\r
\r
- auto following = foreground_->get_following_producer();\r
- following->set_leading_producer(foreground_);\r
- foreground_ = following;\r
+ if(frames_left <= 0 || frame == core::basic_frame::eof())\r
+ {\r
+ CASPAR_VERIFY(auto_play_delta_ != 0 || frame == core::basic_frame::eof())\r
\r
- last_frame_ = receive();\r
+ CASPAR_LOG(info) << L"Automatically playing next clip with " << auto_play_delta_ << " frames offset.";\r
+ \r
+ auto_play_delta_ = -1;\r
+ play();\r
+ frame = receive();\r
}\r
- }\r
- catch(...)\r
- {\r
- CASPAR_LOG_CURRENT_EXCEPTION();\r
- stop();\r
- }\r
\r
- return last_frame_;\r
+ }\r
+ \r
+ return frame;\r
}\r
};\r
\r
-layer::layer() \r
-{\r
- impl_ = new implementation();\r
-}\r
-layer::layer(layer&& other) \r
-{\r
- impl_ = other.impl_.compare_and_swap(nullptr, other.impl_);\r
-}\r
-layer::~layer()\r
+layer::layer() : impl_(new implementation()){}\r
+layer::layer(layer&& other) : impl_(std::move(other.impl_)){}\r
+layer& layer::operator=(layer&& other)\r
{\r
- delete impl_.fetch_and_store(nullptr);\r
+ impl_ = std::move(other.impl_);\r
+ return *this;\r
}\r
-layer& layer::operator=(layer&& other)\r
+layer::layer(const layer& other) : impl_(new implementation(*other.impl_)){}\r
+layer& layer::operator=(const layer& other)\r
{\r
- impl_ = other.impl_.compare_and_swap(nullptr, other.impl_);\r
+ layer temp(other);\r
+ temp.swap(*this);\r
return *this;\r
}\r
void layer::swap(layer& other)\r
-{\r
- impl_ = other.impl_.compare_and_swap(impl_, other.impl_);\r
+{ \r
+ impl_.swap(other.impl_);\r
}\r
-void layer::load(const safe_ptr<frame_producer>& frame_producer, bool play_on_load){return impl_->load(frame_producer, play_on_load);} \r
-void layer::preview(const safe_ptr<frame_producer>& frame_producer){return impl_->preview(frame_producer);} \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
-void layer::clear(){impl_->clear();}\r
-safe_ptr<draw_frame> layer::receive() {return impl_->receive();}\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
}}
\ No newline at end of file