2012-11-28 11:40:07 -08:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef VORBISUTILS_H_
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#define VORBISUTILS_H_
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#ifdef MOZ_SAMPLE_TYPE_S16
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#include <ogg/os_types.h>
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typedef ogg_int32_t VorbisPCMValue;
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#define MOZ_CLIP_TO_15(x) ((x)<-32768?-32768:(x)<=32767?(x):32767)
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// Convert the output of vorbis_synthesis_pcmout to a AudioDataValue
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#define MOZ_CONVERT_VORBIS_SAMPLE(x) \
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(static_cast<AudioDataValue>(MOZ_CLIP_TO_15((x)>>9)))
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#else /* MOZ_SAMPLE_TYPE_FLOAT32 */
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typedef float VorbisPCMValue;
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#define MOZ_CONVERT_VORBIS_SAMPLE(x) (x)
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#endif
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#endif /* VORBISUTILS_H_ */
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