#include <tbb/parallel_invoke.h>\r
\r
namespace caspar {\r
-\r
-double validate_fps(double fps, int64_t nb_frames, double duration_sec)\r
-{\r
- if(fps > 20.0 && fps < 80.0)\r
- return fps;\r
- \r
- auto est_fps = nb_frames/duration_sec;\r
-\r
- CASPAR_LOG(warning) << L"Invalid framerate detected, trying to estimate, fps: " << fps << L" nb_frames: " << nb_frames << L" duration_sec: " << duration_sec << L" => " << est_fps << L" fps.";\r
-\r
- return est_fps;\r
-}\r
- \r
+ \r
struct ffmpeg_producer : public core::frame_producer\r
{\r
const std::wstring filename_;\r
double fps_;\r
frame_muxer muxer_;\r
\r
- int late_frames_;\r
const int start_;\r
const bool loop_;\r
+ const size_t length_;\r
\r
safe_ptr<core::basic_frame> last_frame_;\r
\r
const size_t width_;\r
const size_t height_;\r
- bool progressive_;\r
+ bool is_progressive_;\r
\r
public:\r
- explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, int start, int length) \r
+ explicit ffmpeg_producer(const safe_ptr<core::frame_factory>& frame_factory, const std::wstring& filename, const std::wstring& filter, bool loop, int start, size_t length) \r
: filename_(filename)\r
, graph_(diagnostics::create_graph([this]{return print();}))\r
, frame_factory_(frame_factory) \r
, input_(graph_, filename_, loop, start, length)\r
, video_decoder_(input_.context(), frame_factory, filter)\r
, audio_decoder_(input_.context(), frame_factory->get_video_format_desc())\r
- , fps_(validate_fps(video_decoder_.fps(), video_decoder_.nb_frames(), audio_decoder_.duration()))\r
+ , fps_(video_decoder_.fps())\r
, muxer_(fps_, frame_factory)\r
- , late_frames_(0)\r
, start_(start)\r
, loop_(loop)\r
+ , length_(length)\r
, last_frame_(core::basic_frame::empty())\r
, width_(video_decoder_.width())\r
, height_(video_decoder_.height())\r
- , progressive_(true)\r
+ , is_progressive_(true)\r
{\r
graph_->add_guide("frame-time", 0.5);\r
graph_->set_color("frame-time", diagnostics::color(0.1f, 1.0f, 0.1f));\r
{\r
if(input_.eof())\r
return core::basic_frame::eof();\r
- else\r
- {\r
+ else \r
graph_->add_tag("underflow"); \r
- ++late_frames_; \r
- }\r
}\r
\r
return frame;\r
auto video_frames = video_decoder_.poll();\r
BOOST_FOREACH(auto& video, video_frames) \r
{\r
- if(video)\r
- progressive_ &= video->interlaced_frame != 0;\r
+ is_progressive_ = video ? video->interlaced_frame == 0 : is_progressive_;\r
muxer_.push(video, hints); \r
}\r
},\r
virtual int64_t nb_frames() const \r
{\r
if(loop_)\r
- return std::numeric_limits<int64_t>::max();\r
+ return std::numeric_limits<int>::max();\r
\r
// This function estimates nb_frames until input has read all packets for one loop, at which point the count should be accurate.\r
\r
int64_t video_nb_frames = video_decoder_.nb_frames();\r
int64_t audio_nb_frames = audio_decoder_.nb_frames();\r
\r
- nb_frames = std::max(nb_frames, std::max(video_nb_frames, audio_nb_frames));\r
+ nb_frames = std::min(static_cast<int64_t>(length_), std::max(nb_frames, std::max(video_nb_frames, audio_nb_frames)));\r
}\r
\r
nb_frames = muxer_.calc_nb_frames(nb_frames);\r
\r
// TODO: Might need to scale nb_frames av frame_muxer transformations.\r
\r
- return nb_frames + late_frames_ - start_;\r
+ return nb_frames - start_;\r
}\r
\r
virtual std::wstring print() const\r
{\r
return L"ffmpeg[" + boost::filesystem::wpath(filename_).filename() + L"|" \r
- + boost::lexical_cast<std::wstring>(fps_) + (progressive_ ? L"p" : L"i") +L"|"\r
- + boost::lexical_cast<std::wstring>(width_) + L"x" + boost::lexical_cast<std::wstring>(height_) + L"]";\r
+ + boost::lexical_cast<std::wstring>(width_) + L"x" + boost::lexical_cast<std::wstring>(height_)\r
+ + (is_progressive_ ? L"p" : L"i") + boost::lexical_cast<std::wstring>(fps_)\r
+ + L"]";\r
}\r
};\r
\r