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comparison: content/media/VorbisUtils.h
content/media/VorbisUtils.h
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* vim:set ts=2 sw=2 sts=2 et cindent: */ | |
| 3 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 #ifndef VORBISUTILS_H_ | |
| 8 #define VORBISUTILS_H_ | |
| 9 | |
| 10 #ifdef MOZ_SAMPLE_TYPE_S16 | |
| 11 #include <ogg/os_types.h> | |
| 12 typedef ogg_int32_t VorbisPCMValue; | |
| 13 | |
| 14 #define MOZ_CLIP_TO_15(x) ((x)<-32768?-32768:(x)<=32767?(x):32767) | |
| 15 // Convert the output of vorbis_synthesis_pcmout to a AudioDataValue | |
| 16 #define MOZ_CONVERT_VORBIS_SAMPLE(x) \ | |
| 17 (static_cast<AudioDataValue>(MOZ_CLIP_TO_15((x)>>9))) | |
| 18 | |
| 19 #else /* MOZ_SAMPLE_TYPE_FLOAT32 */ | |
| 20 | |
| 21 typedef float VorbisPCMValue; | |
| 22 | |
| 23 #define MOZ_CONVERT_VORBIS_SAMPLE(x) (x) | |
| 24 | |
| 25 #endif | |
| 26 | |
| 27 #endif /* VORBISUTILS_H_ */ |
