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Unified Diff: third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_FC32.c

Issue 12317152: Add openmax dl routines for review. MUST NOT BE LANDED (Closed) Base URL: http://git.chromium.org/chromium/src.git@master
Patch Set: Created 7 years, 9 months ago
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Index: third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_FC32.c
diff --git a/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_FC32.c b/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_FC32.c
new file mode 100644
index 0000000000000000000000000000000000000000..081f23739dd43a91d85ccfe4dcdb9da458d229fc
--- /dev/null
+++ b/third_party/openmax_dl/dl/sp/src/omxSP_FFTGetBufSize_C_FC32.c
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ */
+
+#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_C_FC32
+ *
+ * Description:
+ * These functions compute the size of the specification structure
+ * required for the length 2^order complex FFT and IFFT functions. The function
+ * <FFTGetBufSize_C_FC32> is used in conjunction with the 32-bit functions
+ * <FFTFwd_CToC_FC32_Sfs> and <FFTInv_CToC_FC32_Sfs>.
+ *
+ * Input Arguments:
+ *
+ * order - base-2 logarithm of the desired block length; valid in the range
+ * [1,12] ([1,15] if BIG_FFT_TABLE is defined.)
+ *
+ * Output Arguments:
+ *
+ * pSize - pointer to the number of bytes required for the specification
+ * structure
+ *
+ * Return Value:
+ *
+ * OMX_Sts_NoErr - no error
+ *
+ *
+ */
+
+OMXResult omxSP_FFTGetBufSize_C_FC32(OMX_INT order, OMX_INT *pSize) {
+ if (!pSize || (order < 1) || (order > TWIDDLE_TABLE_ORDER))
+ return OMX_Sts_BadArgErr;
+ /*
+ * The required size is the same as for C_SC32, because the
+ * elements are the same size and because ARMsFFTSpec_SC32 is
+ * the same size as ARMsFFTSpec_FC32.
+ */
+ return omxSP_FFTGetBufSize_C_SC32(order, pSize);
+}

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