2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
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4 * This file is part of CasparCG.
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6 * CasparCG is free software: you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation, either version 3 of the License, or
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9 * (at your option) any later version.
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11 * CasparCG is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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16 * You should have received a copy of the GNU General Public License
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17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
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20 // TODO: Try to recover consumer from bad_alloc...
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21 #include "../StdAfx.h"
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24 #pragma warning (disable : 4244)
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29 #include "../video_format.h"
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30 #include "../mixer/gpu/ogl_device.h"
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31 #include "../mixer/read_frame.h"
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33 #include <common/concurrency/executor.h>
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34 #include <common/utility/assert.h>
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35 #include <common/utility/timer.h>
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36 #include <common/memory/memshfl.h>
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37 #include <common/env.h>
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39 #include <boost/circular_buffer.hpp>
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40 #include <boost/timer.hpp>
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42 namespace caspar { namespace core {
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44 struct output::implementation
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46 typedef std::pair<safe_ptr<read_frame>, safe_ptr<read_frame>> fill_and_key;
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48 const int channel_index_;
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49 safe_ptr<diagnostics::graph> graph_;
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50 boost::timer consume_timer_;
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52 video_format_desc format_desc_;
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54 std::map<int, safe_ptr<frame_consumer>> consumers_;
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55 typedef std::map<int, safe_ptr<frame_consumer>>::value_type layer_t;
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57 high_prec_timer timer_;
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59 boost::circular_buffer<safe_ptr<read_frame>> frames_;
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61 tbb::concurrent_bounded_queue<std::shared_ptr<read_frame>> input_;
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66 implementation(const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc, int channel_index)
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67 : channel_index_(channel_index)
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69 , format_desc_(format_desc)
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70 , executor_(L"output")
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72 graph_->set_color("consume-time", diagnostics::color(1.0f, 0.4f, 0.0f));
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75 void add(int index, safe_ptr<frame_consumer>&& consumer)
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77 executor_.invoke([&]
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79 consumers_.erase(index);
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82 consumer = create_consumer_cadence_guard(std::move(consumer));
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83 consumer->initialize(format_desc_, channel_index_, index);
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85 executor_.invoke([&]
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87 consumers_.insert(std::make_pair(index, consumer));
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89 CASPAR_LOG(info) << print() << L" " << consumer->print() << L" Added.";
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93 void remove(int index)
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95 executor_.invoke([&]
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97 auto it = consumers_.find(index);
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98 if(it != consumers_.end())
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100 CASPAR_LOG(info) << print() << L" " << it->second->print() << L" Removed.";
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101 consumers_.erase(it);
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106 void set_video_format_desc(const video_format_desc& format_desc)
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108 executor_.invoke([&]
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110 format_desc_ = format_desc;
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112 auto it = consumers_.begin();
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113 while(it != consumers_.end())
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117 it->second->initialize(format_desc_, channel_index_, it->first);
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122 CASPAR_LOG_CURRENT_EXCEPTION();
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123 consumers_.erase(it++);
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131 std::pair<size_t, size_t> minmax_buffer_depth() const
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133 if(consumers_.empty())
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134 return std::make_pair(0, 0);
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135 std::vector<size_t> buffer_depths;
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136 std::transform(consumers_.begin(), consumers_.end(), std::back_inserter(buffer_depths), [](const decltype(*consumers_.begin())& pair)
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138 return pair.second->buffer_depth();
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140 std::sort(buffer_depths.begin(), buffer_depths.end());
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141 auto min = buffer_depths.front();
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142 auto max = buffer_depths.back();
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143 return std::make_pair(min, max);
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146 void send(const std::pair<safe_ptr<read_frame>, std::shared_ptr<void>>& packet)
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148 executor_.begin_invoke([=]
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152 consume_timer_.restart();
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154 auto input_frame = packet.first;
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156 if(!has_synchronization_clock())
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157 timer_.tick(1.0/format_desc_.fps);
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159 if(input_frame->image_size() != format_desc_.size)
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161 timer_.tick(1.0/format_desc_.fps);
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165 const auto minmax = minmax_buffer_depth();
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167 frames_.set_capacity(minmax.second - minmax.first + 1);
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168 frames_.push_back(input_frame);
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170 if(!frames_.full())
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173 auto it = consumers_.begin();
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174 while(it != consumers_.end())
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176 auto consumer = it->second;
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177 auto frame = frames_.at(consumer->buffer_depth()-minmax.first);
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181 if(consumer->send(frame))
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184 consumers_.erase(it++);
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188 CASPAR_LOG_CURRENT_EXCEPTION();
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191 consumer->initialize(format_desc_, channel_index_, it->first);
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192 if(consumer->send(frame))
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195 consumers_.erase(it++);
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199 CASPAR_LOG_CURRENT_EXCEPTION();
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200 CASPAR_LOG(error) << "Failed to recover consumer: " << consumer->print() << L". Removing it.";
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201 consumers_.erase(it++);
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206 graph_->update_value("consume-time", consume_timer_.elapsed()*format_desc_.fps*0.5);
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210 CASPAR_LOG_CURRENT_EXCEPTION();
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217 bool has_synchronization_clock()
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219 return std::any_of(consumers_.begin(), consumers_.end(), [](const decltype(*consumers_.begin())& p)
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221 return p.second->has_synchronization_clock();
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225 std::wstring print() const
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231 output::output(const safe_ptr<diagnostics::graph>& graph, const video_format_desc& format_desc, int channel_index) : impl_(new implementation(graph, format_desc, channel_index)){}
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232 void output::add(int index, safe_ptr<frame_consumer>&& consumer){impl_->add(index, std::move(consumer));}
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233 void output::remove(int index){impl_->remove(index);}
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234 void output::send(const std::pair<safe_ptr<read_frame>, std::shared_ptr<void>>& frame) {impl_->send(frame); }
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235 void output::set_video_format_desc(const video_format_desc& format_desc){impl_->set_video_format_desc(format_desc);}
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