The Tor Browser: content/media/VorbisUtils.h@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     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/. */

     7 #ifndef VORBISUTILS_H_

     8 #define VORBISUTILS_H_

    10 #ifdef MOZ_SAMPLE_TYPE_S16

    11 #include <ogg/os_types.h>

    12 typedef ogg_int32_t VorbisPCMValue;

    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)))

    19 #else /* MOZ_SAMPLE_TYPE_FLOAT32 */

    21 typedef float VorbisPCMValue;

    23 #define MOZ_CONVERT_VORBIS_SAMPLE(x) (x)

    25 #endif

    27 #endif /* VORBISUTILS_H_ */

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