Index: third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_S16S32.c |
diff --git a/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_S16S32.c b/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_S16S32.c |
new file mode 100644 |
index 0000000000000000000000000000000000000000..846536386d90e8cc46b17a66fbb400469621c7dc |
--- /dev/null |
+++ b/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_R_S16S32.c |
@@ -0,0 +1,91 @@ |
+/* |
+ * Copyright (c) 2013 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 file was originally licensed as follows. It has been |
+ * relicensed with permission from the copyright holders. |
+ */ |
+ |
+/** |
+ * |
+ * File Name: omxSP_FFTGetBufSize_R_S16S32.c |
+ * OpenMAX DL: v1.0.2 |
+ * Last Modified Revision: 7777 |
+ * Last Modified Date: Thu, 27 Sep 2007 |
+ * |
+ * (c) Copyright 2007-2008 ARM Limited. All Rights Reserved. |
+ * |
+ * |
+ * Description: |
+ * Computes the size of the specification structure required. |
+ */ |
+ |
+#include "dl/api/armOMX.h" |
+#include "dl/api/omxtypes.h" |
+#include "dl/sp/api/armSP.h" |
+#include "dl/sp/api/omxSP.h" |
+ |
+/** |
+ * Function: omxSP_FFTGetBufSize_R_S16S32 |
+ * |
+ * Description: |
+ * Computes the size of the specification structure required for the length |
+ * 2^order real FFT and IFFT functions. |
+ * |
+ * Remarks: |
+ * This function is used in conjunction with the 16-bit functions |
+ * <FFTFwd_RToCCS_S16_S32_Sfs> and <FFTInv_CCSToR_S32_S16_Sfs>. |
+ * |
+ * Parameters: |
+ * [in] order base-2 logarithm of the length; valid in the range |
+ * [0,12]. |
+ * [out] pSize pointer to the number of bytes required for the |
+ * specification structure. |
+ * |
+ * Return Value: |
+ * Standard omxError result. See enumeration for possible result codes. |
+ * |
+ */ |
+ |
+OMXResult omxSP_FFTGetBufSize_R_S16S32( |
+ OMX_INT order, |
+ OMX_INT *pSize |
+ ) |
+{ |
+ OMX_INT NBy2,N,twiddleSize; |
+ |
+ |
+ /* Check for order zero */ |
+ if (order == 0) |
+ { |
+ *pSize = sizeof(ARMsFFTSpec_R_SC32) |
+ + sizeof(OMX_S32) * (2); /* Extra size 'N' is used in FFTInv_CCSToR_S32S16_Sfs as a temporary buf */ |
+ |
+ return OMX_Sts_NoErr; |
+ } |
+ |
+ NBy2 = 1 << (order - 1); |
+ N = NBy2<<1; |
+ twiddleSize = 5*N/8; /* 3/4(N/2) + N/4 */ |
+ |
+ /* 2 pointers to store bitreversed array and twiddle factor array */ |
+ *pSize = sizeof(ARMsFFTSpec_R_SC32) |
+ /* Twiddle factors */ |
+ + sizeof(OMX_SC32) * twiddleSize |
+ /* Ping Pong buffer for doing the N/2 point complex FFT */ |
+ + sizeof(OMX_S32) * (N<<1) /* Extra size 'N' is used in FFTInv_CCSToR_S32S16_Sfs as a temporary buf */ |
+ + 62 ; /* Extra bytes to get 32 byte alignment of ptwiddle and pBuf */ |
+ |
+ |
+ return OMX_Sts_NoErr; |
+} |
+ |
+/***************************************************************************** |
+ * END OF FILE |
+ *****************************************************************************/ |
+ |