1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/media/VorbisUtils.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,27 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* vim:set ts=2 sw=2 sts=2 et cindent: */
1.6 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.7 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.8 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.9 +
1.10 +#ifndef VORBISUTILS_H_
1.11 +#define VORBISUTILS_H_
1.12 +
1.13 +#ifdef MOZ_SAMPLE_TYPE_S16
1.14 +#include <ogg/os_types.h>
1.15 +typedef ogg_int32_t VorbisPCMValue;
1.16 +
1.17 +#define MOZ_CLIP_TO_15(x) ((x)<-32768?-32768:(x)<=32767?(x):32767)
1.18 +// Convert the output of vorbis_synthesis_pcmout to a AudioDataValue
1.19 +#define MOZ_CONVERT_VORBIS_SAMPLE(x) \
1.20 + (static_cast<AudioDataValue>(MOZ_CLIP_TO_15((x)>>9)))
1.21 +
1.22 +#else /* MOZ_SAMPLE_TYPE_FLOAT32 */
1.23 +
1.24 +typedef float VorbisPCMValue;
1.25 +
1.26 +#define MOZ_CONVERT_VORBIS_SAMPLE(x) (x)
1.27 +
1.28 +#endif
1.29 +
1.30 +#endif /* VORBISUTILS_H_ */
