76 lines
2.6 KiB
C++
76 lines
2.6 KiB
C++
// Copyright (c) 2008, Rodrigo Braz Monteiro
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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//
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// $Id$
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/// @file audio_provider_convert.h
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/// @see audio_provider_convert.cpp
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/// @ingroup audio_input
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///
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#include "libmedia/audio.h"
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#ifndef AGI_PRE
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#include <tr1/memory>
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#endif
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namespace media {
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/// DOCME
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/// @class ConvertAudioProvider
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/// @brief DOCME
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///
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/// DOCME
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class ConvertAudioProvider : public AudioProvider {
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/// DOCME
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int sampleMult;
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/// DOCME
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std::tr1::shared_ptr<AudioProvider> source;
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void Make16Bit(const char *src, short *dst, int64_t count) const;
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template<class SampleConverter>
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void ChangeSampleRate(const short *src, short *dst, int64_t count, const SampleConverter &converter) const;
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public:
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ConvertAudioProvider(AudioProvider *source);
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/// By its nature, the ConvertAudioProvider always delivers machine endian.
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/// That's one of the points of it!
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bool AreSamplesNativeEndian() const { return true; }
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void GetAudio(void *buf, int64_t start, int64_t count) const;
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std::string GetFilename() const { return source->GetFilename(); }
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};
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AudioProvider *CreateConvertAudioProvider(AudioProvider *source_provider);
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} // namespace
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