content/media/VorbisUtils.h
author Randell Jesup <rjesup@jesup.org>
Tue, 11 Jun 2013 21:08:23 -0400
changeset 147073 92fc4bf7a9e96fe79af999ba0dbda55983b9bf2d
parent 124255 d8fb7a8bdae1b6f5110944eabff75634a85e2769
permissions -rw-r--r--
bug 880879: Webrtc updated to 4180; pull made on Wed Jan 05 04:11:00 EDT 2013 rs=derf

/* -*- 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_ */