2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
4 * This file is part of CasparCG (www.casparcg.com).
6 * CasparCG is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * CasparCG is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with CasparCG. If not, see <http://www.gnu.org/licenses/>.
19 * Author: Robert Nagy, ronag89@gmail.com
24 #include <common/forward.h>
25 #include <common/memory.h>
26 #include <common/cache_aligned_vector.h>
27 #include <common/array.h>
29 #include <core/frame/frame_visitor.h>
30 #include <core/monitor/monitor.h>
35 FORWARD2(caspar, diagnostics, class graph);
37 namespace caspar { namespace core {
39 typedef caspar::array<const int32_t> audio_buffer;
41 class audio_mixer final : public frame_visitor
43 audio_mixer(const audio_mixer&);
44 audio_mixer& operator=(const audio_mixer&);
51 audio_mixer(spl::shared_ptr<::caspar::diagnostics::graph> graph);
55 audio_buffer operator()(const struct video_format_desc& format_desc, const struct audio_channel_layout& channel_layout);
56 void set_master_volume(float volume);
57 float get_master_volume();
58 monitor::subject& monitor_output();
62 virtual void push(const struct frame_transform& transform);
63 virtual void visit(const class const_frame& frame);
70 spl::shared_ptr<impl> impl_;