michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim:set ts=2 sw=2 sts=2 et cindent: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef VORBISUTILS_H_
michael@0: #define VORBISUTILS_H_
michael@0: 
michael@0: #ifdef MOZ_SAMPLE_TYPE_S16
michael@0: #include <ogg/os_types.h>
michael@0: typedef ogg_int32_t VorbisPCMValue;
michael@0: 
michael@0: #define MOZ_CLIP_TO_15(x) ((x)<-32768?-32768:(x)<=32767?(x):32767)
michael@0: // Convert the output of vorbis_synthesis_pcmout to a AudioDataValue
michael@0: #define MOZ_CONVERT_VORBIS_SAMPLE(x) \
michael@0:  (static_cast<AudioDataValue>(MOZ_CLIP_TO_15((x)>>9)))
michael@0: 
michael@0: #else /* MOZ_SAMPLE_TYPE_FLOAT32 */
michael@0: 
michael@0: typedef float VorbisPCMValue;
michael@0: 
michael@0: #define MOZ_CONVERT_VORBIS_SAMPLE(x) (x)
michael@0: 
michael@0: #endif
michael@0: 
michael@0: #endif /* VORBISUTILS_H_ */