2 * copyright (c) 2010 Sveriges Television AB <info@casparcg.com>
\r
4 * This file is part of CasparCG.
\r
6 * CasparCG is free software: you can redistribute it and/or modify
\r
7 * it under the terms of the GNU General Public License as published by
\r
8 * the Free Software Foundation, either version 3 of the License, or
\r
9 * (at your option) any later version.
\r
11 * CasparCG is distributed in the hope that it will be useful,
\r
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
\r
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\r
14 * GNU General Public License for more details.
\r
16 * You should have received a copy of the GNU General Public License
\r
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
\r
20 #include "../StdAfx.h"
\r
23 #pragma warning (disable : 4244)
\r
28 #include "../video_channel_context.h"
\r
30 #include "../video_format.h"
\r
31 #include "../mixer/gpu/ogl_device.h"
\r
32 #include "../mixer/read_frame.h"
\r
34 #include <common/concurrency/executor.h>
\r
35 #include <common/utility/assert.h>
\r
36 #include <common/utility/timer.h>
\r
37 #include <common/memory/memshfl.h>
\r
39 namespace caspar { namespace core {
\r
41 struct output::implementation
\r
43 typedef std::pair<safe_ptr<const read_frame>, safe_ptr<const read_frame>> fill_and_key;
\r
45 video_channel_context& channel_;
\r
47 std::map<int, safe_ptr<frame_consumer>> consumers_;
\r
48 typedef std::map<int, safe_ptr<frame_consumer>>::value_type layer_t;
\r
50 high_prec_timer timer_;
\r
53 implementation(video_channel_context& video_channel)
\r
54 : channel_(video_channel){}
\r
56 void add(int index, safe_ptr<frame_consumer>&& consumer)
\r
58 consumer->initialize(channel_.get_format_desc());
\r
59 channel_.execution().invoke([&]
\r
61 consumers_.erase(index);
\r
62 consumers_.insert(std::make_pair(index, consumer));
\r
64 CASPAR_LOG(info) << print() << L" " << consumer->print() << L" Added.";
\r
68 void remove(int index)
\r
70 channel_.execution().invoke([&]
\r
72 auto it = consumers_.find(index);
\r
73 if(it != consumers_.end())
\r
75 CASPAR_LOG(info) << print() << L" " << it->second->print() << L" Removed.";
\r
76 consumers_.erase(it);
\r
81 void execute(const safe_ptr<read_frame>& frame)
\r
85 if(!has_synchronization_clock())
\r
86 timer_.tick(1.0/channel_.get_format_desc().fps);
\r
89 auto key = get_key_frame(frame);
\r
91 auto it = consumers_.begin();
\r
92 while(it != consumers_.end())
\r
96 auto consumer = it->second;
\r
98 if(consumer->get_video_format_desc() != channel_.get_format_desc())
\r
99 consumer->initialize(channel_.get_format_desc());
\r
101 auto frame = consumer->key_only() ? key : fill;
\r
103 if(static_cast<size_t>(frame->image_data().size()) == consumer->get_video_format_desc().size)
\r
104 consumer->send(frame);
\r
110 CASPAR_LOG_CURRENT_EXCEPTION();
\r
111 CASPAR_LOG(error) << print() << L" " << it->second->print() << L" Removed.";
\r
112 consumers_.erase(it++);
\r
118 CASPAR_LOG_CURRENT_EXCEPTION();
\r
124 bool has_synchronization_clock()
\r
126 return std::any_of(consumers_.begin(), consumers_.end(), [](const decltype(*consumers_.begin())& p)
\r
128 return p.second->has_synchronization_clock();
\r
132 safe_ptr<const read_frame> get_key_frame(const safe_ptr<const read_frame>& frame)
\r
134 bool has_key_only = std::any_of(consumers_.begin(), consumers_.end(), [](const decltype(*consumers_.begin())& p)
\r
136 return p.second->key_only();
\r
141 // Currently do key_only transform on cpu. Unsure if the extra 400MB/s (1080p50) overhead is worth it to do it on gpu.
\r
142 auto key_data = channel_.ogl().create_host_buffer(frame->image_data().size(), host_buffer::write_only);
\r
143 fast_memsfhl(key_data->data(), frame->image_data().begin(), frame->image_data().size(), 0x0F0F0F0F, 0x0B0B0B0B, 0x07070707, 0x03030303);
\r
144 std::vector<int16_t> audio_data(frame->audio_data().begin(), frame->audio_data().end());
\r
145 return make_safe<read_frame>(std::move(key_data), std::move(audio_data));
\r
148 return make_safe<read_frame>();
\r
151 std::wstring print() const
\r
157 output::output(video_channel_context& video_channel) : impl_(new implementation(video_channel)){}
\r
158 void output::add(int index, safe_ptr<frame_consumer>&& consumer){impl_->add(index, std::move(consumer));}
\r
159 void output::remove(int index){impl_->remove(index);}
\r
160 void output::execute(const safe_ptr<read_frame>& frame) {impl_->execute(frame); }
\r