X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=core%2Fproducer%2Flayer.cpp;h=f940d2a9eb6bda491fa0253bc9b376dcbc47fa50;hb=a8e71e9b2452413398ac10f0b6e2dea41cecdec5;hp=61876047fc456c280e9eda3687b7e296e5a7fce7;hpb=5a63ca90e962b9f8373d3235f67e8d5d779a1c91;p=casparcg diff --git a/core/producer/layer.cpp b/core/producer/layer.cpp index 61876047f..f940d2a9e 100644 --- a/core/producer/layer.cpp +++ b/core/producer/layer.cpp @@ -1,114 +1,171 @@ +/* +* 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 "../producer/frame_producer.h" - -#include "../format/video_format.h" +#include "frame_producer.h" +#include "frame/basic_frame.h" namespace caspar { namespace core { - + struct layer::implementation -{ +{ + safe_ptr foreground_; + safe_ptr background_; + int64_t frame_number_; + int auto_play_delta_; + bool is_paused_; + +public: implementation() - : preview_frame_(nullptr), active_(nullptr), - background_(nullptr), last_frame_(nullptr) {} + : foreground_(frame_producer::empty()) + , background_(frame_producer::empty()) + , frame_number_(0) + , auto_play_delta_(-1) + , is_paused_(false) + { + } - void load(const frame_producer_ptr& frame_producer, load_option::type option) + void pause() { - if(frame_producer == nullptr) - BOOST_THROW_EXCEPTION(null_argument() << arg_name_info("frame_producer")); - - last_frame_ = nullptr; - background_ = frame_producer; - if(option == load_option::preview) - { - last_frame_ = frame_producer->render_frame(); - if(last_frame_ != nullptr) - last_frame_->audio_data().clear(); // No audio - active_ = nullptr; + is_paused_ = true; + } + + void resume() + { + 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(); } - else if(option == load_option::auto_play) - play(); } void play() { - if(background_ != nullptr) + if(background_ != frame_producer::empty()) { - background_->set_leading_producer(active_); - active_ = background_; - background_ = nullptr; + background_->set_leading_producer(foreground_); + + foreground_ = background_; + background_ = frame_producer::empty(); + frame_number_ = 0; + auto_play_delta_ = -1; } - is_paused_ = false; + is_paused_ = false; } - - void pause() - { - is_paused_ = true; - } - + void stop() { - active_ = nullptr; - last_frame_ = nullptr; - } + foreground_ = frame_producer::empty(); + background_ = background_; + frame_number_ = 0; + auto_play_delta_ = -1; - void clear() - { - active_ = nullptr; - background_ = nullptr; - last_frame_ = nullptr; + is_paused_ = true; } - - frame_ptr render_frame() + + safe_ptr receive() { - if(!active_ || is_paused_) - return last_frame_; - try { - last_frame_ = active_->render_frame(); + if(is_paused_) + return disable_audio(foreground_->last_frame()); + + auto frame = receive_and_follow(foreground_, frame_producer::NO_HINT); + if(frame == core::basic_frame::late()) + return foreground_->last_frame(); - if(last_frame_ == nullptr) + auto frames_left = foreground_->nb_frames() - (++frame_number_) - auto_play_delta_; + if(auto_play_delta_ > -1 && frames_left < 1) { - active_ = active_->get_following_producer(); - last_frame_ = render_frame(); + play(); + return receive(); } + + return frame; } catch(...) { CASPAR_LOG_CURRENT_EXCEPTION(); - CASPAR_LOG(warning) << L"Removed " << (active_ ? active_->print() : L"frame_producer") << L" from layer."; - active_ = nullptr; - last_frame_ = nullptr; + stop(); + return core::basic_frame::empty(); } + } - return last_frame_; - } - - tbb::atomic is_paused_; - frame_ptr last_frame_; - frame_ptr preview_frame_; - frame_producer_ptr active_; - frame_producer_ptr background_; + 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; + } + + bool empty() const + { + return background_ == core::frame_producer::empty() && foreground_ == core::frame_producer::empty(); + } }; layer::layer() : impl_(new implementation()){} -layer::layer(layer&& other) : impl_(std::move(other.impl_)){other.impl_ = nullptr;} +layer::layer(layer&& other) : impl_(std::move(other.impl_)){} layer& layer::operator=(layer&& other) { - impl_ = std::move(other.impl_); - other.impl_ = nullptr; + impl_ = std::move(other.impl_); return *this; } -void layer::load(const frame_producer_ptr& frame_producer, load_option::type option){return impl_->load(frame_producer, option);} +layer::layer(const layer& other) : impl_(new implementation(*other.impl_)){} +layer& layer::operator=(const layer& other) +{ + layer temp(other); + temp.swap(*this); + return *this; +} +void layer::swap(layer& other) +{ + impl_.swap(other.impl_); +} +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();} -frame_ptr layer::render_frame() {return impl_->render_frame();} -frame_producer_ptr layer::active() const { return impl_->active_;} -frame_producer_ptr layer::background() const { return impl_->background_;} +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