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_channel_context.h"
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31 #include "../video_format.h"
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32 #include "../mixer/gpu/ogl_device.h"
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33 #include "../mixer/read_frame.h"
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35 #include <common/concurrency/executor.h>
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36 #include <common/utility/assert.h>
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37 #include <common/utility/timer.h>
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38 #include <common/memory/memshfl.h>
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40 #include <tbb/mutex.h>
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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 video_channel_context& channel_;
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49 const std::function<void()> restart_channel_;
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51 std::map<int, safe_ptr<frame_consumer>> consumers_;
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52 typedef std::map<int, safe_ptr<frame_consumer>>::value_type layer_t;
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54 high_prec_timer timer_;
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57 implementation(video_channel_context& video_channel, const std::function<void()>& restart_channel)
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58 : channel_(video_channel)
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59 , restart_channel_(restart_channel)
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63 void add(int index, safe_ptr<frame_consumer>&& consumer)
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65 channel_.execution().invoke([&]
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67 consumers_.erase(index);
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70 consumer->initialize(channel_.get_format_desc());
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72 channel_.execution().invoke([&]
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74 consumers_.insert(std::make_pair(index, consumer));
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76 CASPAR_LOG(info) << print() << L" " << consumer->print() << L" Added.";
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80 void remove(int index)
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82 channel_.execution().invoke([&]
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84 auto it = consumers_.find(index);
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85 if(it != consumers_.end())
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87 CASPAR_LOG(info) << print() << L" " << it->second->print() << L" Removed.";
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88 consumers_.erase(it);
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93 void execute(const safe_ptr<read_frame>& frame)
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95 if(!has_synchronization_clock())
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96 timer_.tick(1.0/channel_.get_format_desc().fps);
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98 if(frame->image_size() != channel_.get_format_desc().size)
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100 timer_.tick(1.0/channel_.get_format_desc().fps);
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104 auto it = consumers_.begin();
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105 while(it != consumers_.end())
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107 auto consumer = it->second;
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109 if(consumer->get_video_format_desc() != channel_.get_format_desc())
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110 consumer->initialize(channel_.get_format_desc());
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114 if(consumer->send(frame))
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117 consumers_.erase(it++);
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121 CASPAR_LOG_CURRENT_EXCEPTION();
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122 CASPAR_LOG(warning) << "Trying to restart consumer: " << consumer->print() << L".";
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125 consumer->initialize(channel_.get_format_desc());
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126 consumer->send(frame);
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130 CASPAR_LOG_CURRENT_EXCEPTION();
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131 CASPAR_LOG(warning) << "Consumer restart failed, trying to restart channel: " << consumer->print() << L".";
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135 restart_channel_();
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136 consumer->initialize(channel_.get_format_desc());
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137 consumer->send(frame);
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141 CASPAR_LOG_CURRENT_EXCEPTION();
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142 CASPAR_LOG(error) << "Failed to recover consumer: " << consumer->print() << L". Removing it.";
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143 consumers_.erase(it++);
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152 bool has_synchronization_clock()
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154 return std::any_of(consumers_.begin(), consumers_.end(), [](const decltype(*consumers_.begin())& p)
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156 return p.second->has_synchronization_clock();
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160 std::wstring print() const
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166 output::output(video_channel_context& video_channel, const std::function<void()>& restart_channel) : impl_(new implementation(video_channel, restart_channel)){}
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167 void output::add(int index, safe_ptr<frame_consumer>&& consumer){impl_->add(index, std::move(consumer));}
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168 void output::remove(int index){impl_->remove(index);}
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169 void output::execute(const safe_ptr<read_frame>& frame) {impl_->execute(frame); }
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