2 * Copyright (c) 2011 Sveriges Television AB <info@casparcg.com>
\r
4 * This file is part of CasparCG (www.casparcg.com).
\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
19 * Author: Robert Nagy, ronag89@gmail.com
\r
24 #include <common/memory/safe_ptr.h>
\r
26 #include <core/producer/frame/frame_visitor.h>
\r
28 #include <boost/noncopyable.hpp>
\r
30 #include <tbb/cache_aligned_allocator.h>
\r
36 namespace diagnostics {
\r
44 struct video_format_desc;
\r
46 typedef std::vector<int32_t, tbb::cache_aligned_allocator<int32_t>> audio_buffer;
\r
48 class audio_mixer : public core::frame_visitor, boost::noncopyable
\r
51 audio_mixer(const safe_ptr<diagnostics::graph>& graph);
\r
53 virtual void begin(core::basic_frame& frame);
\r
54 virtual void visit(core::write_frame& frame);
\r
57 void set_master_volume(float volume);
\r
59 audio_buffer operator()(const video_format_desc& format_desc);
\r
62 struct implementation;
\r
63 safe_ptr<implementation> impl_;
\r