|
| void(* | vector_fmul_window_scaled )(int16_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len, uint8_t bits) |
| | Overlap/add with window function. More...
|
| |
| void(* | vector_fmul_window )(int32_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len) |
| | Overlap/add with window function. More...
|
| |
| void(* | vector_fmul )(int *dst, const int *src0, const int *src1, int len) |
| | Fixed-point multiplication that calculates the entry wise product of two vectors of integers and stores the result in a vector of integers. More...
|
| |
|
void(* | vector_fmul_reverse )(int *dst, const int *src0, const int *src1, int len) |
| |
| void(* | vector_fmul_add )(int *dst, const int *src0, const int *src1, const int *src2, int len) |
| | Calculate the entry wise product of two vectors of integers, add a third vector of integers and store the result in a vector of integers. More...
|
| |
| int(* | scalarproduct_fixed )(const int *v1, const int *v2, int len) |
| | Calculate the scalar product of two vectors of integers. More...
|
| |
| void(* | butterflies_fixed )(int *av_restrict v1, int *av_restrict v2, int len) |
| | Calculate the sum and difference of two vectors of integers. More...
|
| |
§ butterflies_fixed
| void(* AVFixedDSPContext::butterflies_fixed) (int *av_restrict v1, int *av_restrict v2, int len) |
Calculate the sum and difference of two vectors of integers.
- Parameters
-
| v1 | first input vector, sum output, 16-byte aligned |
| v2 | second input vector, difference output, 16-byte aligned |
| len | length of vectors, multiple of 4 |
§ scalarproduct_fixed
| int(* AVFixedDSPContext::scalarproduct_fixed) (const int *v1, const int *v2, int len) |
Calculate the scalar product of two vectors of integers.
- Parameters
-
| v1 | first vector, 16-byte aligned |
| v2 | second vector, 16-byte aligned |
| len | length of vectors, multiple of 4 |
- Returns
- sum of elementwise products
§ vector_fmul
| void(* AVFixedDSPContext::vector_fmul) (int *dst, const int *src0, const int *src1, int len) |
Fixed-point multiplication that calculates the entry wise product of two vectors of integers and stores the result in a vector of integers.
- Parameters
-
| dst | output vector constraints: 32-byte aligned |
| src0 | first input vector constraints: 32-byte aligned |
| src1 | second input vector constraints: 32-byte aligned |
| len | number of elements in the input constraints: multiple of 16 |
§ vector_fmul_add
| void(* AVFixedDSPContext::vector_fmul_add) (int *dst, const int *src0, const int *src1, const int *src2, int len) |
Calculate the entry wise product of two vectors of integers, add a third vector of integers and store the result in a vector of integers.
- Parameters
-
| dst | output vector constraints: 32-byte aligned |
| src0 | first input vector constraints: 32-byte aligned |
| src1 | second input vector constraints: 32-byte aligned |
| src2 | third input vector constraints: 32-byte aligned |
| len | number of elements in the input constraints: multiple of 16 |
§ vector_fmul_window
| void(* AVFixedDSPContext::vector_fmul_window) (int32_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len) |
Overlap/add with window function.
Used primarily by MDCT-based audio codecs. Source and destination vectors must overlap exactly or not at all.
- Parameters
-
| dst | result vector constraints: 32-byte aligned |
| src0 | first source vector constraints: 16-byte aligned |
| src1 | second source vector constraints: 16-byte aligned |
| win | half-window vector constraints: 16-byte aligned |
| len | length of vector constraints: multiple of 4 |
§ vector_fmul_window_scaled
| void(* AVFixedDSPContext::vector_fmul_window_scaled) (int16_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len, uint8_t bits) |
Overlap/add with window function.
Result is scaled down by "bits" bits. Used primarily by MDCT-based audio codecs. Source and destination vectors must overlap exactly or not at all.
- Parameters
-
| dst | result vector constraints: 16-byte aligned |
| src0 | first source vector constraints: 16-byte aligned |
| src1 | second source vector constraints: 16-byte aligned |
| win | half-window vector constraints: 16-byte aligned |
| len | length of vector constraints: multiple of 4 |
| bits | scaling parameter |
The documentation for this struct was generated from the following file:
