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Diffstat (limited to 'src/common_audio/signal_processing_library/main/source/resample_by_2_internal.h')
-rw-r--r-- | src/common_audio/signal_processing_library/main/source/resample_by_2_internal.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/src/common_audio/signal_processing_library/main/source/resample_by_2_internal.h b/src/common_audio/signal_processing_library/main/source/resample_by_2_internal.h new file mode 100644 index 0000000000..b6ac9f0cb4 --- /dev/null +++ b/src/common_audio/signal_processing_library/main/source/resample_by_2_internal.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2011 The WebRTC project authors. All Rights Reserved. + * + * Use of this source code is governed by a BSD-style license + * that can be found in the LICENSE file in the root of the source + * tree. An additional intellectual property rights grant can be found + * in the file PATENTS. All contributing project authors may + * be found in the AUTHORS file in the root of the source tree. + */ + + +/* + * This header file contains some internal resampling functions. + * + */ + +#ifndef WEBRTC_SPL_RESAMPLE_BY_2_INTERNAL_H_ +#define WEBRTC_SPL_RESAMPLE_BY_2_INTERNAL_H_ + +#include "typedefs.h" + +/******************************************************************* + * resample_by_2_fast.c + * Functions for internal use in the other resample functions + ******************************************************************/ +void WebRtcSpl_DownBy2IntToShort(WebRtc_Word32 *in, WebRtc_Word32 len, WebRtc_Word16 *out, + WebRtc_Word32 *state); + +void WebRtcSpl_DownBy2ShortToInt(const WebRtc_Word16 *in, WebRtc_Word32 len, + WebRtc_Word32 *out, WebRtc_Word32 *state); + +void WebRtcSpl_UpBy2ShortToInt(const WebRtc_Word16 *in, WebRtc_Word32 len, + WebRtc_Word32 *out, WebRtc_Word32 *state); + +void WebRtcSpl_UpBy2IntToInt(const WebRtc_Word32 *in, WebRtc_Word32 len, WebRtc_Word32 *out, + WebRtc_Word32 *state); + +void WebRtcSpl_UpBy2IntToShort(const WebRtc_Word32 *in, WebRtc_Word32 len, + WebRtc_Word16 *out, WebRtc_Word32 *state); + +void WebRtcSpl_LPBy2ShortToInt(const WebRtc_Word16* in, WebRtc_Word32 len, + WebRtc_Word32* out, WebRtc_Word32* state); + +void WebRtcSpl_LPBy2IntToInt(const WebRtc_Word32* in, WebRtc_Word32 len, WebRtc_Word32* out, + WebRtc_Word32* state); + +#endif // WEBRTC_SPL_RESAMPLE_BY_2_INTERNAL_H_ |