#include "frame/basic_frame.h"\r
#include "frame/frame_transform.h"\r
\r
+#include <boost/optional.hpp>\r
#include <boost/property_tree/ptree.hpp>\r
\r
namespace caspar { namespace core {\r
safe_ptr<frame_producer> foreground_;\r
safe_ptr<frame_producer> background_;\r
int64_t frame_number_;\r
- int32_t auto_play_delta_;\r
+ boost::optional<int32_t> auto_play_delta_;\r
bool is_paused_;\r
\r
public:\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
}\r
is_paused_ = false;\r
}\r
\r
- void load(const safe_ptr<frame_producer>& producer, bool preview, int auto_play_delta)\r
+ void load(const safe_ptr<frame_producer>& producer, bool preview, const boost::optional<int32_t>& auto_play_delta)\r
{ \r
background_ = producer;\r
auto_play_delta_ = auto_play_delta;\r
\r
- if(auto_play_delta_ > -1 && foreground_ == frame_producer::empty())\r
+ if(auto_play_delta_ && foreground_ == frame_producer::empty())\r
play();\r
\r
if(preview) // Play the first frame and pause.\r
foreground_ = background_;\r
background_ = frame_producer::empty();\r
frame_number_ = 0;\r
- auto_play_delta_ = -1; \r
+ auto_play_delta_ = nullptr; \r
}\r
\r
is_paused_ = false;\r
foreground_ = frame_producer::empty();\r
background_ = background_;\r
frame_number_ = 0;\r
- auto_play_delta_ = -1;\r
+ auto_play_delta_ = nullptr; \r
\r
is_paused_ = true;\r
}\r
if(frame == core::basic_frame::late())\r
return disable_audio(foreground_->last_frame());\r
\r
- auto frames_left = static_cast<int64_t>(foreground_->nb_frames()) - static_cast<int64_t>(++frame_number_) - static_cast<int64_t>(auto_play_delta_);\r
- if(auto_play_delta_ > -1 && frames_left < 1)\r
+ if(auto_play_delta_)\r
{\r
- play();\r
- return receive(flags);\r
+ auto frames_left = static_cast<int64_t>(foreground_->nb_frames()) - static_cast<int64_t>(++frame_number_) - static_cast<int64_t>(*auto_play_delta_);\r
+ if(frames_left < 1)\r
+ {\r
+ play();\r
+ return receive(flags);\r
+ }\r
}\r
\r
return frame;\r
{ \r
impl_.swap(other.impl_);\r
}\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::load(const safe_ptr<frame_producer>& frame_producer, bool preview, const boost::optional<int32_t>& 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