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Diffstat (limited to 'dom/media/VorbisUtils.h')
| -rw-r--r-- | dom/media/VorbisUtils.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/dom/media/VorbisUtils.h b/dom/media/VorbisUtils.h new file mode 100644 index 0000000000..3d8ac74b00 --- /dev/null +++ b/dom/media/VorbisUtils.h @@ -0,0 +1,27 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef VORBISUTILS_H_ +#define VORBISUTILS_H_ + +#ifdef MOZ_SAMPLE_TYPE_S16 +# include <ogg/os_types.h> +typedef ogg_int32_t VorbisPCMValue; + +# define MOZ_CLIP_TO_15(x) ((x) < -32768 ? -32768 : (x) <= 32767 ? (x) : 32767) +// Convert the output of vorbis_synthesis_pcmout to a AudioDataValue +# define MOZ_CONVERT_VORBIS_SAMPLE(x) \ + (static_cast<AudioDataValue>(MOZ_CLIP_TO_15((x) >> 9))) + +#else /* MOZ_SAMPLE_TYPE_FLOAT32 */ + +typedef float VorbisPCMValue; + +# define MOZ_CONVERT_VORBIS_SAMPLE(x) (x) + +#endif + +#endif /* VORBISUTILS_H_ */ |