1 /* 2 * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11 12 /* 13 * This header file contains some internal resampling functions. 14 * 15 */ 16 17 #ifndef WEBRTC_SPL_RESAMPLE_BY_2_INTERNAL_H_ 18 #define WEBRTC_SPL_RESAMPLE_BY_2_INTERNAL_H_ 19 20 #include "typedefs.h" 21 22 /******************************************************************* 23 * resample_by_2_fast.c 24 * Functions for internal use in the other resample functions 25 ******************************************************************/ 26 void WebRtcSpl_DownBy2IntToShort(WebRtc_Word32 *in, WebRtc_Word32 len, WebRtc_Word16 *out, 27 WebRtc_Word32 *state); 28 29 void WebRtcSpl_DownBy2ShortToInt(const WebRtc_Word16 *in, WebRtc_Word32 len, 30 WebRtc_Word32 *out, WebRtc_Word32 *state); 31 32 void WebRtcSpl_UpBy2ShortToInt(const WebRtc_Word16 *in, WebRtc_Word32 len, 33 WebRtc_Word32 *out, WebRtc_Word32 *state); 34 35 void WebRtcSpl_UpBy2IntToInt(const WebRtc_Word32 *in, WebRtc_Word32 len, WebRtc_Word32 *out, 36 WebRtc_Word32 *state); 37 38 void WebRtcSpl_UpBy2IntToShort(const WebRtc_Word32 *in, WebRtc_Word32 len, 39 WebRtc_Word16 *out, WebRtc_Word32 *state); 40 41 void WebRtcSpl_LPBy2ShortToInt(const WebRtc_Word16* in, WebRtc_Word32 len, 42 WebRtc_Word32* out, WebRtc_Word32* state); 43 44 void WebRtcSpl_LPBy2IntToInt(const WebRtc_Word32* in, WebRtc_Word32 len, WebRtc_Word32* out, 45 WebRtc_Word32* state); 46 47 #endif // WEBRTC_SPL_RESAMPLE_BY_2_INTERNAL_H_ 48