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| arm_status | arm_conv_partial_f32 (float32_t *pSrcA, uint32_t srcALen, float32_t *pSrcB, uint32_t srcBLen, float32_t *pDst, uint32_t firstIndex, uint32_t numPoints) |
| | Partial convolution of floating-point sequences. More...
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| arm_status | arm_conv_partial_fast_q15 (q15_t *pSrcA, uint32_t srcALen, q15_t *pSrcB, uint32_t srcBLen, q15_t *pDst, uint32_t firstIndex, uint32_t numPoints) |
| | Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4. More...
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| arm_status | arm_conv_partial_fast_q31 (q31_t *pSrcA, uint32_t srcALen, q31_t *pSrcB, uint32_t srcBLen, q31_t *pDst, uint32_t firstIndex, uint32_t numPoints) |
| | Partial convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4. More...
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| arm_status | arm_conv_partial_q15 (q15_t *pSrcA, uint32_t srcALen, q15_t *pSrcB, uint32_t srcBLen, q15_t *pDst, uint32_t firstIndex, uint32_t numPoints) |
| | Partial convolution of Q15 sequences. More...
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| arm_status | arm_conv_partial_q31 (q31_t *pSrcA, uint32_t srcALen, q31_t *pSrcB, uint32_t srcBLen, q31_t *pDst, uint32_t firstIndex, uint32_t numPoints) |
| | Partial convolution of Q31 sequences. More...
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| arm_status | arm_conv_partial_q7 (q7_t *pSrcA, uint32_t srcALen, q7_t *pSrcB, uint32_t srcBLen, q7_t *pDst, uint32_t firstIndex, uint32_t numPoints) |
| | Partial convolution of Q7 sequences. More...
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Partial Convolution is equivalent to Convolution except that a subset of the output samples is generated. Each function has two additional arguments. firstIndex specifies the starting index of the subset of output samples. numPoints is the number of output samples to compute. The function computes the output in the range [firstIndex, ..., firstIndex+numPoints-1]. The output array pDst contains numPoints values.
The allowable range of output indices is [0 srcALen+srcBLen-2]. If the requested subset does not fall in this range then the functions return ARM_MATH_ARGUMENT_ERROR. Otherwise the functions return ARM_MATH_SUCCESS.
- Note
- Refer arm_conv_f32() for details on fixed point behavior.
| arm_status arm_conv_partial_f32 |
( |
float32_t * |
pSrcA, |
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|
uint32_t |
srcALen, |
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|
float32_t * |
pSrcB, |
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|
uint32_t |
srcBLen, |
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|
float32_t * |
pDst, |
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|
uint32_t |
firstIndex, |
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|
uint32_t |
numPoints |
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) |
| |
Partial convolution of floating-point sequences.
- Parameters
-
| [in] | *pSrcA | points to the first input sequence. |
| [in] | srcALen | length of the first input sequence. |
| [in] | *pSrcB | points to the second input sequence. |
| [in] | srcBLen | length of the second input sequence. |
| [out] | *pDst | points to the location where the output result is written. |
| [in] | firstIndex | is the first output sample to start with. |
| [in] | numPoints | is the number of output points to be computed. |
- Returns
- Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
| arm_status arm_conv_partial_fast_q15 |
( |
q15_t * |
pSrcA, |
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uint32_t |
srcALen, |
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q15_t * |
pSrcB, |
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uint32_t |
srcBLen, |
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|
q15_t * |
pDst, |
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uint32_t |
firstIndex, |
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uint32_t |
numPoints |
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) |
| |
Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4.
- Parameters
-
| [in] | *pSrcA | points to the first input sequence. |
| [in] | srcALen | length of the first input sequence. |
| [in] | *pSrcB | points to the second input sequence. |
| [in] | srcBLen | length of the second input sequence. |
| [out] | *pDst | points to the location where the output result is written. |
| [in] | firstIndex | is the first output sample to start with. |
| [in] | numPoints | is the number of output points to be computed. |
- Returns
- Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
See arm_conv_partial_q15() for a slower implementation of this function which uses a 64-bit accumulator to avoid wrap around distortion.
| arm_status arm_conv_partial_fast_q31 |
( |
q31_t * |
pSrcA, |
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uint32_t |
srcALen, |
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q31_t * |
pSrcB, |
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|
uint32_t |
srcBLen, |
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|
q31_t * |
pDst, |
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|
uint32_t |
firstIndex, |
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|
uint32_t |
numPoints |
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) |
| |
Partial convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4.
- Parameters
-
| [in] | *pSrcA | points to the first input sequence. |
| [in] | srcALen | length of the first input sequence. |
| [in] | *pSrcB | points to the second input sequence. |
| [in] | srcBLen | length of the second input sequence. |
| [out] | *pDst | points to the location where the output result is written. |
| [in] | firstIndex | is the first output sample to start with. |
| [in] | numPoints | is the number of output points to be computed. |
- Returns
- Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
- See
arm_conv_partial_q31() for a slower implementation of this function which uses a 64-bit accumulator to provide higher precision.
| arm_status arm_conv_partial_q15 |
( |
q15_t * |
pSrcA, |
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uint32_t |
srcALen, |
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q15_t * |
pSrcB, |
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uint32_t |
srcBLen, |
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|
q15_t * |
pDst, |
|
|
uint32_t |
firstIndex, |
|
|
uint32_t |
numPoints |
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) |
| |
Partial convolution of Q15 sequences.
- Parameters
-
| [in] | *pSrcA | points to the first input sequence. |
| [in] | srcALen | length of the first input sequence. |
| [in] | *pSrcB | points to the second input sequence. |
| [in] | srcBLen | length of the second input sequence. |
| [out] | *pDst | points to the location where the output result is written. |
| [in] | firstIndex | is the first output sample to start with. |
| [in] | numPoints | is the number of output points to be computed. |
- Returns
- Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
Refer to arm_conv_partial_fast_q15() for a faster but less precise version of this function for Cortex-M3 and Cortex-M4.
| arm_status arm_conv_partial_q31 |
( |
q31_t * |
pSrcA, |
|
|
uint32_t |
srcALen, |
|
|
q31_t * |
pSrcB, |
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|
uint32_t |
srcBLen, |
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|
q31_t * |
pDst, |
|
|
uint32_t |
firstIndex, |
|
|
uint32_t |
numPoints |
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) |
| |
Partial convolution of Q31 sequences.
- Parameters
-
| [in] | *pSrcA | points to the first input sequence. |
| [in] | srcALen | length of the first input sequence. |
| [in] | *pSrcB | points to the second input sequence. |
| [in] | srcBLen | length of the second input sequence. |
| [out] | *pDst | points to the location where the output result is written. |
| [in] | firstIndex | is the first output sample to start with. |
| [in] | numPoints | is the number of output points to be computed. |
- Returns
- Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
See arm_conv_partial_fast_q31() for a faster but less precise implementation of this function for Cortex-M3 and Cortex-M4.
| arm_status arm_conv_partial_q7 |
( |
q7_t * |
pSrcA, |
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uint32_t |
srcALen, |
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q7_t * |
pSrcB, |
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uint32_t |
srcBLen, |
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q7_t * |
pDst, |
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uint32_t |
firstIndex, |
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uint32_t |
numPoints |
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) |
| |
Partial convolution of Q7 sequences.
- Parameters
-
| [in] | *pSrcA | points to the first input sequence. |
| [in] | srcALen | length of the first input sequence. |
| [in] | *pSrcB | points to the second input sequence. |
| [in] | srcBLen | length of the second input sequence. |
| [out] | *pDst | points to the location where the output result is written. |
| [in] | firstIndex | is the first output sample to start with. |
| [in] | numPoints | is the number of output points to be computed. |
- Returns
- Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
1.8.11