diff options
Diffstat (limited to 'chromium/third_party/libvpx/source/libvpx/vpx_dsp/avg.c')
| -rw-r--r-- | chromium/third_party/libvpx/source/libvpx/vpx_dsp/avg.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/chromium/third_party/libvpx/source/libvpx/vpx_dsp/avg.c b/chromium/third_party/libvpx/source/libvpx/vpx_dsp/avg.c index 26fe7859a5c..a8c996663d9 100644 --- a/chromium/third_party/libvpx/source/libvpx/vpx_dsp/avg.c +++ b/chromium/third_party/libvpx/source/libvpx/vpx_dsp/avg.c @@ -62,7 +62,9 @@ static void hadamard_col8(const int16_t *src_diff, int src_stride, coeff[5] = c3 - c7; } -void vpx_hadamard_8x8_c(int16_t const *src_diff, int src_stride, +// The order of the output coeff of the hadamard is not important. For +// optimization purposes the final transpose may be skipped. +void vpx_hadamard_8x8_c(const int16_t *src_diff, int src_stride, int16_t *coeff) { int idx; int16_t buffer[64]; @@ -85,12 +87,12 @@ void vpx_hadamard_8x8_c(int16_t const *src_diff, int src_stride, } // In place 16x16 2D Hadamard transform -void vpx_hadamard_16x16_c(int16_t const *src_diff, int src_stride, +void vpx_hadamard_16x16_c(const int16_t *src_diff, int src_stride, int16_t *coeff) { int idx; for (idx = 0; idx < 4; ++idx) { // src_diff: 9 bit, dynamic range [-255, 255] - int16_t const *src_ptr = src_diff + (idx >> 1) * 8 * src_stride + const int16_t *src_ptr = src_diff + (idx >> 1) * 8 * src_stride + (idx & 0x01) * 8; vpx_hadamard_8x8_c(src_ptr, src_stride, coeff + idx * 64); } @@ -130,7 +132,7 @@ int vpx_satd_c(const int16_t *coeff, int length) { // Integer projection onto row vectors. // height: value range {16, 32, 64}. -void vpx_int_pro_row_c(int16_t hbuf[16], uint8_t const *ref, +void vpx_int_pro_row_c(int16_t hbuf[16], const uint8_t *ref, const int ref_stride, const int height) { int idx; const int norm_factor = height >> 1; @@ -147,7 +149,7 @@ void vpx_int_pro_row_c(int16_t hbuf[16], uint8_t const *ref, } // width: value range {16, 32, 64}. -int16_t vpx_int_pro_col_c(uint8_t const *ref, const int width) { +int16_t vpx_int_pro_col_c(const uint8_t *ref, const int width) { int idx; int16_t sum = 0; // sum: 14 bit, dynamic range [0, 16320] @@ -159,7 +161,7 @@ int16_t vpx_int_pro_col_c(uint8_t const *ref, const int width) { // ref: [0 - 510] // src: [0 - 510] // bwl: {2, 3, 4} -int vpx_vector_var_c(int16_t const *ref, int16_t const *src, +int vpx_vector_var_c(const int16_t *ref, const int16_t *src, const int bwl) { int i; int width = 4 << bwl; |