diff options
Diffstat (limited to 'third_party/aom/av1/encoder/hybrid_fwd_txfm.c')
| -rw-r--r-- | third_party/aom/av1/encoder/hybrid_fwd_txfm.c | 390 |
1 files changed, 390 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/hybrid_fwd_txfm.c b/third_party/aom/av1/encoder/hybrid_fwd_txfm.c new file mode 100644 index 0000000000..67898fd184 --- /dev/null +++ b/third_party/aom/av1/encoder/hybrid_fwd_txfm.c @@ -0,0 +1,390 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include "config/aom_config.h" +#include "config/av1_rtcd.h" +#include "config/aom_dsp_rtcd.h" + +#include "av1/common/idct.h" +#include "av1/encoder/hybrid_fwd_txfm.h" + +/* 4-point reversible, orthonormal Walsh-Hadamard in 3.5 adds, 0.5 shifts per + pixel. */ +void av1_fwht4x4_c(const int16_t *input, tran_low_t *output, int stride) { + int i; + tran_high_t a1, b1, c1, d1, e1; + const int16_t *ip_pass0 = input; + const tran_low_t *ip = NULL; + tran_low_t *op = output; + + for (i = 0; i < 4; i++) { + a1 = ip_pass0[0 * stride]; + b1 = ip_pass0[1 * stride]; + c1 = ip_pass0[2 * stride]; + d1 = ip_pass0[3 * stride]; + + a1 += b1; + d1 = d1 - c1; + e1 = (a1 - d1) >> 1; + b1 = e1 - b1; + c1 = e1 - c1; + a1 -= c1; + d1 += b1; + op[0] = (tran_low_t)a1; + op[4] = (tran_low_t)c1; + op[8] = (tran_low_t)d1; + op[12] = (tran_low_t)b1; + + ip_pass0++; + op++; + } + ip = output; + op = output; + + for (i = 0; i < 4; i++) { + a1 = ip[0]; + b1 = ip[1]; + c1 = ip[2]; + d1 = ip[3]; + + a1 += b1; + d1 -= c1; + e1 = (a1 - d1) >> 1; + b1 = e1 - b1; + c1 = e1 - c1; + a1 -= c1; + d1 += b1; + op[0] = (tran_low_t)(a1 * UNIT_QUANT_FACTOR); + op[1] = (tran_low_t)(c1 * UNIT_QUANT_FACTOR); + op[2] = (tran_low_t)(d1 * UNIT_QUANT_FACTOR); + op[3] = (tran_low_t)(b1 * UNIT_QUANT_FACTOR); + + ip += 4; + op += 4; + } +} + +void av1_highbd_fwht4x4_c(const int16_t *input, tran_low_t *output, + int stride) { + av1_fwht4x4_c(input, output, stride); +} + +static void highbd_fwd_txfm_4x4(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + const TX_TYPE tx_type = txfm_param->tx_type; + const int bd = txfm_param->bd; + if (txfm_param->lossless) { + assert(tx_type == DCT_DCT); + av1_highbd_fwht4x4(src_diff, coeff, diff_stride); + return; + } + switch (tx_type) { + // use the c version for anything including identity for now + case V_DCT: + case H_DCT: + case V_ADST: + case H_ADST: + case V_FLIPADST: + case H_FLIPADST: + case IDTX: + av1_fwd_txfm2d_4x4_c(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + default: + av1_fwd_txfm2d_4x4(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + } +} + +static void highbd_fwd_txfm_4x8(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_4x8_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_8x4(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_8x4_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_8x16(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + const TX_TYPE tx_type = txfm_param->tx_type; + const int bd = txfm_param->bd; + switch (tx_type) { + // use the c version for anything including identity for now + case V_DCT: + case H_DCT: + case V_ADST: + case H_ADST: + case V_FLIPADST: + case H_FLIPADST: + case IDTX: + av1_fwd_txfm2d_8x16_c(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + default: + av1_fwd_txfm2d_8x16(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + } +} + +static void highbd_fwd_txfm_16x8(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + const TX_TYPE tx_type = txfm_param->tx_type; + const int bd = txfm_param->bd; + switch (tx_type) { + // use the c version for anything including identity for now + case V_DCT: + case H_DCT: + case V_ADST: + case H_ADST: + case V_FLIPADST: + case H_FLIPADST: + case IDTX: + av1_fwd_txfm2d_16x8_c(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + default: + av1_fwd_txfm2d_16x8(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + } +} + +static void highbd_fwd_txfm_16x32(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_16x32_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_32x16(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_32x16_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_16x4(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_16x4_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_4x16(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_4x16_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_32x8(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_32x8_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_8x32(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + av1_fwd_txfm2d_8x32_c(src_diff, dst_coeff, diff_stride, txfm_param->tx_type, + txfm_param->bd); +} + +static void highbd_fwd_txfm_8x8(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + const TX_TYPE tx_type = txfm_param->tx_type; + const int bd = txfm_param->bd; + switch (tx_type) { + // use the c version for anything including identity for now + case V_DCT: + case H_DCT: + case V_ADST: + case H_ADST: + case V_FLIPADST: + case H_FLIPADST: + case IDTX: + av1_fwd_txfm2d_8x8_c(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + default: + av1_fwd_txfm2d_8x8(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + } +} + +static void highbd_fwd_txfm_16x16(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + const TX_TYPE tx_type = txfm_param->tx_type; + const int bd = txfm_param->bd; + switch (tx_type) { + // use the c version for anything including identity for now + case V_DCT: + case H_DCT: + case V_ADST: + case H_ADST: + case V_FLIPADST: + case H_FLIPADST: + case IDTX: + av1_fwd_txfm2d_16x16_c(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + default: + av1_fwd_txfm2d_16x16(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + } +} + +static void highbd_fwd_txfm_32x32(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + int32_t *dst_coeff = (int32_t *)coeff; + const TX_TYPE tx_type = txfm_param->tx_type; + const int bd = txfm_param->bd; + switch (tx_type) { + // use the c version for anything including identity for now + case V_DCT: + case H_DCT: + case V_ADST: + case H_ADST: + case V_FLIPADST: + case H_FLIPADST: + case IDTX: + av1_fwd_txfm2d_32x32_c(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + default: + av1_fwd_txfm2d_32x32(src_diff, dst_coeff, diff_stride, tx_type, bd); + break; + } +} + +static void highbd_fwd_txfm_32x64(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + assert(txfm_param->tx_type == DCT_DCT); + int32_t *dst_coeff = (int32_t *)coeff; + const int bd = txfm_param->bd; + av1_fwd_txfm2d_32x64_c(src_diff, dst_coeff, diff_stride, DCT_DCT, bd); +} + +static void highbd_fwd_txfm_64x32(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + assert(txfm_param->tx_type == DCT_DCT); + int32_t *dst_coeff = (int32_t *)coeff; + const int bd = txfm_param->bd; + av1_fwd_txfm2d_64x32_c(src_diff, dst_coeff, diff_stride, DCT_DCT, bd); +} + +static void highbd_fwd_txfm_16x64(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + assert(txfm_param->tx_type == DCT_DCT); + int32_t *dst_coeff = (int32_t *)coeff; + const int bd = txfm_param->bd; + av1_fwd_txfm2d_16x64_c(src_diff, dst_coeff, diff_stride, DCT_DCT, bd); +} + +static void highbd_fwd_txfm_64x16(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + assert(txfm_param->tx_type == DCT_DCT); + int32_t *dst_coeff = (int32_t *)coeff; + const int bd = txfm_param->bd; + av1_fwd_txfm2d_64x16_c(src_diff, dst_coeff, diff_stride, DCT_DCT, bd); +} + +static void highbd_fwd_txfm_64x64(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + assert(txfm_param->tx_type == DCT_DCT); + int32_t *dst_coeff = (int32_t *)coeff; + const int bd = txfm_param->bd; + av1_fwd_txfm2d_64x64(src_diff, dst_coeff, diff_stride, DCT_DCT, bd); +} + +void av1_fwd_txfm(const int16_t *src_diff, tran_low_t *coeff, int diff_stride, + TxfmParam *txfm_param) { + if (txfm_param->bd == 8) + av1_lowbd_fwd_txfm(src_diff, coeff, diff_stride, txfm_param); + else + av1_highbd_fwd_txfm(src_diff, coeff, diff_stride, txfm_param); +} + +void av1_lowbd_fwd_txfm_c(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + av1_highbd_fwd_txfm(src_diff, coeff, diff_stride, txfm_param); +} + +void av1_highbd_fwd_txfm(const int16_t *src_diff, tran_low_t *coeff, + int diff_stride, TxfmParam *txfm_param) { + assert(av1_ext_tx_used[txfm_param->tx_set_type][txfm_param->tx_type]); + const TX_SIZE tx_size = txfm_param->tx_size; + switch (tx_size) { + case TX_64X64: + highbd_fwd_txfm_64x64(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_32X64: + highbd_fwd_txfm_32x64(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_64X32: + highbd_fwd_txfm_64x32(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_16X64: + highbd_fwd_txfm_16x64(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_64X16: + highbd_fwd_txfm_64x16(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_32X32: + highbd_fwd_txfm_32x32(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_16X16: + highbd_fwd_txfm_16x16(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_8X8: + highbd_fwd_txfm_8x8(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_4X8: + highbd_fwd_txfm_4x8(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_8X4: + highbd_fwd_txfm_8x4(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_8X16: + highbd_fwd_txfm_8x16(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_16X8: + highbd_fwd_txfm_16x8(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_16X32: + highbd_fwd_txfm_16x32(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_32X16: + highbd_fwd_txfm_32x16(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_4X4: + highbd_fwd_txfm_4x4(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_4X16: + highbd_fwd_txfm_4x16(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_16X4: + highbd_fwd_txfm_16x4(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_8X32: + highbd_fwd_txfm_8x32(src_diff, coeff, diff_stride, txfm_param); + break; + case TX_32X8: + highbd_fwd_txfm_32x8(src_diff, coeff, diff_stride, txfm_param); + break; + default: assert(0); break; + } +} |