X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=core%2Fproducer%2Flayer.cpp;h=c267c611e7d00bd922ba107a8336fb43b7ae764c;hb=af660bb0772edbc122286d1e1bc1ded9bc6b2794;hp=66fda5c9e61f8970869b51a5d8139a8d732454b9;hpb=e56da909f3376f8b7c24ddc0d8f1a5a65b5cd265;p=casparcg diff --git a/core/producer/layer.cpp b/core/producer/layer.cpp index 66fda5c9e..c267c611e 100644 --- a/core/producer/layer.cpp +++ b/core/producer/layer.cpp @@ -1,150 +1,181 @@ +/* +* copyright (c) 2010 Sveriges Television AB +* +* This file is part of CasparCG. +* +* 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 . +* +*/ + #include "../stdafx.h" #include "layer.h" -#include "../mixer/frame/draw_frame.h" -#include "../mixer/image/image_mixer.h" -#include "../mixer/audio/audio_mixer.h" -#include "../producer/frame_producer.h" - -#include "../video_format.h" - -#include +#include "frame_producer.h" +#include "frame/basic_frame.h" namespace caspar { namespace core { - -struct layer::implementation : boost::noncopyable -{ + +struct layer::implementation +{ safe_ptr foreground_; safe_ptr background_; - safe_ptr last_frame_; - const int index_; bool is_paused_; + int auto_play_delta_; + int64_t frame_number_; + safe_ptr last_frame_; public: - implementation(int index) + implementation() : foreground_(frame_producer::empty()) , background_(frame_producer::empty()) - , last_frame_(draw_frame::empty()) - , index_(index) - , is_paused_(false){} + , is_paused_(false) + , auto_play_delta_(-1) + , frame_number_(0) + , last_frame_(core::basic_frame::empty()){} - void load(const safe_ptr& frame_producer, bool play_on_load) - { - background_ = frame_producer; - CASPAR_LOG(info) << print() << " " << frame_producer->print() << " => background"; - if(play_on_load) - play(); + void pause() + { + is_paused_ = true; } - void preview(const safe_ptr& frame_producer) + void resume() { - stop(); - load(frame_producer, false); - try - { - last_frame_ = frame_producer->receive(); - } - catch(...) - { - CASPAR_LOG_CURRENT_EXCEPTION(); - clear(); + is_paused_ = false; + } + + void load(const safe_ptr& producer, bool preview, int auto_play_delta) + { + background_ = producer; + auto_play_delta_ = auto_play_delta; + + if(preview) // Play the first frame and pause. + { + play(); + receive(); + pause(); } } void play() { - if(is_paused_) - is_paused_ = false; - else + if(background_ != frame_producer::empty()) { background_->set_leading_producer(foreground_); foreground_ = background_; + frame_number_ = 0; + auto_play_delta_ = -1; background_ = frame_producer::empty(); - CASPAR_LOG(info) << print() << L" background => foreground"; } + resume(); } - - void pause() - { - is_paused_ = true; - } - + void stop() { - pause(); - last_frame_ = draw_frame::empty(); foreground_ = frame_producer::empty(); - CASPAR_LOG(warning) << print() << L" empty => foreground"; - } - - void clear() - { - stop(); - background_ = frame_producer::empty(); - CASPAR_LOG(warning) << print() << L" empty => background"; + frame_number_ = 0; + last_frame_ = core::basic_frame::empty(); } - - safe_ptr receive() + + safe_ptr receive() { - if(is_paused_) - return last_frame_; - try { - last_frame_ = foreground_->receive(); - last_frame_->set_layer_index(index_); - if(last_frame_ == draw_frame::eof()) + if(is_paused_) + return disable_audio(last_frame_); + + const auto frames_left = foreground_->nb_frames() - (++frame_number_) - auto_play_delta_; + + auto frame = receive_and_follow(foreground_, frame_producer::NO_HINT); + if(frame == core::basic_frame::late()) + return foreground_->last_frame(); + + if(auto_play_delta_ >= 0) { - CASPAR_ASSERT(foreground_ != frame_producer::empty()); - - auto following = foreground_->get_following_producer(); - following->set_leading_producer(foreground_); - foreground_ = following; - - CASPAR_LOG(info) << print() << L" [EOF] " << foreground_->print() << " => foreground"; + CASPAR_ASSERT(background_ != core::frame_producer::empty()); + if(frames_left <= 0 || frame == core::basic_frame::eof()) + { + //CASPAR_ASSERT(frame != core::basic_frame::eof() && "Received early EOF. Media duration metadata incorrect."); + + CASPAR_LOG(info) << L"Automatically playing next clip with " << auto_play_delta_ << " frames offset. Frames left: " << frames_left; + + play(); + frame = receive(); + } + } - last_frame_ = receive(); + if(frame == core::basic_frame::eof()) + { + pause(); + return receive(); } + + return last_frame_ = frame; } catch(...) { CASPAR_LOG_CURRENT_EXCEPTION(); stop(); + return core::basic_frame::empty(); } + } - return last_frame_; + layer_status status() const + { + layer_status status; + status.foreground = foreground_->print(); + status.background = background_->print(); + status.is_paused = is_paused_; + status.total_frames = foreground_->nb_frames(); + status.current_frame = frame_number_; + + return status; } - std::wstring print() const { return L"layer[" + boost::lexical_cast(index_) + L"]"; } + bool empty() const + { + return background_ == core::frame_producer::empty() && foreground_ == core::frame_producer::empty(); + } }; -layer::layer(int index) -{ - impl_ = new implementation(index); -} -layer::layer(layer&& other) : impl_(std::move(other.impl_)){other.impl_ = nullptr;} -layer::~layer() +layer::layer() : impl_(new implementation()){} +layer::layer(layer&& other) : impl_(std::move(other.impl_)){} +layer& layer::operator=(layer&& other) { - delete impl_.fetch_and_store(nullptr); + impl_ = std::move(other.impl_); + return *this; } -layer& layer::operator=(layer&& other) +layer::layer(const layer& other) : impl_(new implementation(*other.impl_)){} +layer& layer::operator=(const layer& other) { - impl_ = std::move(other.impl_); - other.impl_ = nullptr; + layer temp(other); + temp.swap(*this); return *this; } void layer::swap(layer& other) -{ - impl_ = other.impl_.compare_and_swap(impl_, other.impl_); +{ + impl_.swap(other.impl_); } -void layer::load(const safe_ptr& frame_producer, bool play_on_load){return impl_->load(frame_producer, play_on_load);} -void layer::preview(const safe_ptr& frame_producer){return impl_->preview(frame_producer);} +void layer::load(const safe_ptr& frame_producer, bool preview, int auto_play_delta){return impl_->load(frame_producer, preview, auto_play_delta);} void layer::play(){impl_->play();} void layer::pause(){impl_->pause();} void layer::stop(){impl_->stop();} -void layer::clear(){impl_->clear();} -safe_ptr layer::receive() {return impl_->receive();} +bool layer::is_paused() const{return impl_->is_paused_;} +int64_t layer::frame_number() const{return impl_->frame_number_;} +layer_status layer::status() const {return impl_->status();} +safe_ptr layer::receive() {return impl_->receive();} safe_ptr layer::foreground() const { return impl_->foreground_;} safe_ptr layer::background() const { return impl_->background_;} +bool layer::empty() const {return impl_->empty();} }} \ No newline at end of file