Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vp9/encoder/vp9_quantize.c

Index: third_party/libvpx/source/libvpx/vp9/encoder/vp9_quantize.c
diff --git a/third_party/libvpx/source/libvpx/vp9/encoder/vp9_quantize.c b/third_party/libvpx/source/libvpx/vp9/encoder/vp9_quantize.c
new file mode 100644
index 0000000000000000000000000000000000000000..3c07e2c2437c3544edd2a71cf18acea2c4cdd723
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp9/encoder/vp9_quantize.c
@@ -0,0 +1,727 @@
+/*
+ *  Copyright (c) 2010 The WebM 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 <math.h>
+
+#include "vpx_mem/vpx_mem.h"
+
+#include "vp9/common/vp9_quant_common.h"
+#include "vp9/common/vp9_seg_common.h"
+
+#include "vp9/encoder/vp9_encoder.h"
+#include "vp9/encoder/vp9_quantize.h"
+#include "vp9/encoder/vp9_rd.h"
+
+void vp9_quantize_dc(const tran_low_t *coeff_ptr,
+                     int n_coeffs, int skip_block,
+                     const int16_t *round_ptr, const int16_t quant,
+                     tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                     const int16_t dequant_ptr, uint16_t *eob_ptr) {
+  const int rc = 0;
+  const int coeff = coeff_ptr[rc];
+  const int coeff_sign = (coeff >> 31);
+  const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+  int tmp, eob = -1;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
+    tmp = (tmp * quant) >> 16;
+    qcoeff_ptr[rc]  = (tmp ^ coeff_sign) - coeff_sign;
+    dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr;
+    if (tmp)
+      eob = 0;
+  }
+  *eob_ptr = eob + 1;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_quantize_dc(const tran_low_t *coeff_ptr,
+                            int n_coeffs, int skip_block,
+                            const int16_t *round_ptr, const int16_t quant,
+                            tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                            const int16_t dequant_ptr, uint16_t *eob_ptr) {
+  int eob = -1;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    const int rc = 0;
+    const int coeff = coeff_ptr[rc];
+    const int coeff_sign = (coeff >> 31);
+    const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+    const int64_t tmp =
+        (clamp(abs_coeff + round_ptr[rc != 0], INT32_MIN, INT32_MAX) *
+         quant) >> 16;
+    qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign);
+    dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr;
+    if (tmp)
+      eob = 0;
+  }
+  *eob_ptr = eob + 1;
+}
+#endif
+
+void vp9_quantize_dc_32x32(const tran_low_t *coeff_ptr, int skip_block,
+                           const int16_t *round_ptr, const int16_t quant,
+                           tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                           const int16_t dequant_ptr, uint16_t *eob_ptr) {
+  const int n_coeffs = 1024;
+  const int rc = 0;
+  const int coeff = coeff_ptr[rc];
+  const int coeff_sign = (coeff >> 31);
+  const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+  int tmp, eob = -1;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+
+    tmp = clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1),
+                INT16_MIN, INT16_MAX);
+    tmp = (tmp * quant) >> 15;
+    qcoeff_ptr[rc]  = (tmp ^ coeff_sign) - coeff_sign;
+    dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr / 2;
+    if (tmp)
+      eob = 0;
+  }
+  *eob_ptr = eob + 1;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_quantize_dc_32x32(const tran_low_t *coeff_ptr,
+                                  int skip_block,
+                                  const int16_t *round_ptr,
+                                  const int16_t quant,
+                                  tran_low_t *qcoeff_ptr,
+                                  tran_low_t *dqcoeff_ptr,
+                                  const int16_t dequant_ptr,
+                                  uint16_t *eob_ptr) {
+  const int n_coeffs = 1024;
+  int eob = -1;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    const int rc = 0;
+    const int coeff = coeff_ptr[rc];
+    const int coeff_sign = (coeff >> 31);
+    const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+    const int64_t tmp =
+        (clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1),
+               INT32_MIN, INT32_MAX) * quant) >> 15;
+    qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign);
+    dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr / 2;
+    if (tmp)
+      eob = 0;
+  }
+  *eob_ptr = eob + 1;
+}
+#endif
+
+void vp9_quantize_fp_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                       int skip_block,
+                       const int16_t *zbin_ptr, const int16_t *round_ptr,
+                       const int16_t *quant_ptr, const int16_t *quant_shift_ptr,
+                       tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                       const int16_t *dequant_ptr,
+                       uint16_t *eob_ptr,
+                       const int16_t *scan, const int16_t *iscan) {
+  int i, eob = -1;
+  // TODO(jingning) Decide the need of these arguments after the
+  // quantization process is completed.
+  (void)zbin_ptr;
+  (void)quant_shift_ptr;
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    // Quantization pass: All coefficients with index >= zero_flag are
+    // skippable. Note: zero_flag can be zero.
+    for (i = 0; i < n_coeffs; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+      int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
+      tmp = (tmp * quant_ptr[rc != 0]) >> 16;
+
+      qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
+      dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
+
+      if (tmp)
+        eob = i;
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_quantize_fp_c(const tran_low_t *coeff_ptr,
+                              intptr_t count,
+                              int skip_block,
+                              const int16_t *zbin_ptr,
+                              const int16_t *round_ptr,
+                              const int16_t *quant_ptr,
+                              const int16_t *quant_shift_ptr,
+                              tran_low_t *qcoeff_ptr,
+                              tran_low_t *dqcoeff_ptr,
+                              const int16_t *dequant_ptr,
+                              uint16_t *eob_ptr,
+                              const int16_t *scan,
+                              const int16_t *iscan) {
+  int i;
+  int eob = -1;
+  // TODO(jingning) Decide the need of these arguments after the
+  // quantization process is completed.
+  (void)zbin_ptr;
+  (void)quant_shift_ptr;
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, count * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, count * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    // Quantization pass: All coefficients with index >= zero_flag are
+    // skippable. Note: zero_flag can be zero.
+    for (i = 0; i < count; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+      const int64_t tmp =
+          (clamp(abs_coeff + round_ptr[rc != 0], INT32_MIN, INT32_MAX) *
+           quant_ptr[rc != 0]) >> 16;
+
+      qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign);
+      dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
+
+      if (tmp)
+        eob = i;
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+#endif
+
+// TODO(jingning) Refactor this file and combine functions with similar
+// operations.
+void vp9_quantize_fp_32x32_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                             int skip_block,
+                             const int16_t *zbin_ptr, const int16_t *round_ptr,
+                             const int16_t *quant_ptr,
+                             const int16_t *quant_shift_ptr,
+                             tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                             const int16_t *dequant_ptr,
+                             uint16_t *eob_ptr,
+                             const int16_t *scan, const int16_t *iscan) {
+  int i, eob = -1;
+  (void)zbin_ptr;
+  (void)quant_shift_ptr;
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    for (i = 0; i < n_coeffs; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      int tmp = 0;
+      int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+      if (abs_coeff >= (dequant_ptr[rc != 0] >> 2)) {
+        abs_coeff += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1);
+        abs_coeff = clamp(abs_coeff, INT16_MIN, INT16_MAX);
+        tmp = (abs_coeff * quant_ptr[rc != 0]) >> 15;
+        qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
+        dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
+      }
+
+      if (tmp)
+        eob = i;
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_quantize_fp_32x32_c(const tran_low_t *coeff_ptr,
+                                    intptr_t n_coeffs, int skip_block,
+                                    const int16_t *zbin_ptr,
+                                    const int16_t *round_ptr,
+                                    const int16_t *quant_ptr,
+                                    const int16_t *quant_shift_ptr,
+                                    tran_low_t *qcoeff_ptr,
+                                    tran_low_t *dqcoeff_ptr,
+                                    const int16_t *dequant_ptr,
+                                    uint16_t *eob_ptr,
+                                    const int16_t *scan, const int16_t *iscan) {
+  int i, eob = -1;
+  (void)zbin_ptr;
+  (void)quant_shift_ptr;
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    for (i = 0; i < n_coeffs; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      int64_t tmp = 0;
+      const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+      if (abs_coeff >= (dequant_ptr[rc != 0] >> 2)) {
+        tmp = clamp(abs_coeff + ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1),
+                    INT32_MIN, INT32_MAX);
+        tmp = (tmp * quant_ptr[rc != 0]) >> 15;
+        qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign);
+        dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
+      }
+
+      if (tmp)
+        eob = i;
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+#endif
+
+void vp9_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                      int skip_block,
+                      const int16_t *zbin_ptr, const int16_t *round_ptr,
+                      const int16_t *quant_ptr, const int16_t *quant_shift_ptr,
+                      tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                      const int16_t *dequant_ptr,
+                      uint16_t *eob_ptr,
+                      const int16_t *scan, const int16_t *iscan) {
+  int i, non_zero_count = (int)n_coeffs, eob = -1;
+  const int zbins[2] = {zbin_ptr[0], zbin_ptr[1]};
+  const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    // Pre-scan pass
+    for (i = (int)n_coeffs - 1; i >= 0; i--) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+
+      if (coeff < zbins[rc != 0] && coeff > nzbins[rc != 0])
+        non_zero_count--;
+      else
+        break;
+    }
+
+    // Quantization pass: All coefficients with index >= zero_flag are
+    // skippable. Note: zero_flag can be zero.
+    for (i = 0; i < non_zero_count; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+      if (abs_coeff >= zbins[rc != 0]) {
+        int tmp = clamp(abs_coeff + round_ptr[rc != 0], INT16_MIN, INT16_MAX);
+        tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) *
+                  quant_shift_ptr[rc != 0]) >> 16;  // quantization
+        qcoeff_ptr[rc]  = (tmp ^ coeff_sign) - coeff_sign;
+        dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
+
+        if (tmp)
+          eob = i;
+      }
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_quantize_b_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                             int skip_block, const int16_t *zbin_ptr,
+                             const int16_t *round_ptr, const int16_t *quant_ptr,
+                             const int16_t *quant_shift_ptr,
+                             tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                             const int16_t *dequant_ptr,
+                             uint16_t *eob_ptr, const int16_t *scan,
+                             const int16_t *iscan) {
+  int i, non_zero_count = (int)n_coeffs, eob = -1;
+  const int zbins[2] = {zbin_ptr[0], zbin_ptr[1]};
+  const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    // Pre-scan pass
+    for (i = (int)n_coeffs - 1; i >= 0; i--) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+
+      if (coeff < zbins[rc != 0] && coeff > nzbins[rc != 0])
+        non_zero_count--;
+      else
+        break;
+    }
+
+    // Quantization pass: All coefficients with index >= zero_flag are
+    // skippable. Note: zero_flag can be zero.
+    for (i = 0; i < non_zero_count; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+
+      if (abs_coeff >= zbins[rc != 0]) {
+        int64_t tmp = clamp(abs_coeff + round_ptr[rc != 0],
+                            INT32_MIN, INT32_MAX);
+        tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) *
+                  quant_shift_ptr[rc != 0]) >> 16;  // quantization
+        qcoeff_ptr[rc]  = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign);
+        dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0];
+
+        if (tmp)
+          eob = i;
+      }
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+#endif
+
+void vp9_quantize_b_32x32_c(const tran_low_t *coeff_ptr, intptr_t n_coeffs,
+                            int skip_block,
+                            const int16_t *zbin_ptr, const int16_t *round_ptr,
+                            const int16_t *quant_ptr,
+                            const int16_t *quant_shift_ptr,
+                            tran_low_t *qcoeff_ptr, tran_low_t *dqcoeff_ptr,
+                            const int16_t *dequant_ptr,
+                            uint16_t *eob_ptr,
+                            const int16_t *scan, const int16_t *iscan) {
+  const int zbins[2] = {ROUND_POWER_OF_TWO(zbin_ptr[0], 1),
+                        ROUND_POWER_OF_TWO(zbin_ptr[1], 1)};
+  const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
+
+  int idx = 0;
+  int idx_arr[1024];
+  int i, eob = -1;
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    // Pre-scan pass
+    for (i = 0; i < n_coeffs; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+
+      // If the coefficient is out of the base ZBIN range, keep it for
+      // quantization.
+      if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0])
+        idx_arr[idx++] = i;
+    }
+
+    // Quantization pass: only process the coefficients selected in
+    // pre-scan pass. Note: idx can be zero.
+    for (i = 0; i < idx; i++) {
+      const int rc = scan[idx_arr[i]];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      int tmp;
+      int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+      abs_coeff += ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1);
+      abs_coeff = clamp(abs_coeff, INT16_MIN, INT16_MAX);
+      tmp = ((((abs_coeff * quant_ptr[rc != 0]) >> 16) + abs_coeff) *
+               quant_shift_ptr[rc != 0]) >> 15;
+
+      qcoeff_ptr[rc] = (tmp ^ coeff_sign) - coeff_sign;
+      dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
+
+      if (tmp)
+        eob = idx_arr[i];
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+
+#if CONFIG_VP9_HIGHBITDEPTH
+void vp9_highbd_quantize_b_32x32_c(const tran_low_t *coeff_ptr,
+                                   intptr_t n_coeffs, int skip_block,
+                                   const int16_t *zbin_ptr,
+                                   const int16_t *round_ptr,
+                                   const int16_t *quant_ptr,
+                                   const int16_t *quant_shift_ptr,
+                                   tran_low_t *qcoeff_ptr,
+                                   tran_low_t *dqcoeff_ptr,
+                                   const int16_t *dequant_ptr,
+                                   uint16_t *eob_ptr,
+                                   const int16_t *scan, const int16_t *iscan) {
+  const int zbins[2] = {ROUND_POWER_OF_TWO(zbin_ptr[0], 1),
+                        ROUND_POWER_OF_TWO(zbin_ptr[1], 1)};
+  const int nzbins[2] = {zbins[0] * -1, zbins[1] * -1};
+
+  int idx = 0;
+  int idx_arr[1024];
+  int i, eob = -1;
+  (void)iscan;
+
+  memset(qcoeff_ptr, 0, n_coeffs * sizeof(*qcoeff_ptr));
+  memset(dqcoeff_ptr, 0, n_coeffs * sizeof(*dqcoeff_ptr));
+
+  if (!skip_block) {
+    // Pre-scan pass
+    for (i = 0; i < n_coeffs; i++) {
+      const int rc = scan[i];
+      const int coeff = coeff_ptr[rc];
+
+      // If the coefficient is out of the base ZBIN range, keep it for
+      // quantization.
+      if (coeff >= zbins[rc != 0] || coeff <= nzbins[rc != 0])
+        idx_arr[idx++] = i;
+    }
+
+    // Quantization pass: only process the coefficients selected in
+    // pre-scan pass. Note: idx can be zero.
+    for (i = 0; i < idx; i++) {
+      const int rc = scan[idx_arr[i]];
+      const int coeff = coeff_ptr[rc];
+      const int coeff_sign = (coeff >> 31);
+      const int abs_coeff = (coeff ^ coeff_sign) - coeff_sign;
+      int64_t tmp = clamp(abs_coeff +
+                          ROUND_POWER_OF_TWO(round_ptr[rc != 0], 1),
+                          INT32_MIN, INT32_MAX);
+      tmp = ((((tmp * quant_ptr[rc != 0]) >> 16) + tmp) *
+               quant_shift_ptr[rc != 0]) >> 15;
+
+      qcoeff_ptr[rc] = (tran_low_t)((tmp ^ coeff_sign) - coeff_sign);
+      dqcoeff_ptr[rc] = qcoeff_ptr[rc] * dequant_ptr[rc != 0] / 2;
+
+      if (tmp)
+        eob = idx_arr[i];
+    }
+  }
+  *eob_ptr = eob + 1;
+}
+#endif
+
+void vp9_regular_quantize_b_4x4(MACROBLOCK *x, int plane, int block,
+                                const int16_t *scan, const int16_t *iscan) {
+  MACROBLOCKD *const xd = &x->e_mbd;
+  struct macroblock_plane *p = &x->plane[plane];
+  struct macroblockd_plane *pd = &xd->plane[plane];
+
+#if CONFIG_VP9_HIGHBITDEPTH
+  if (xd->cur_buf->flags & YV12_FLAG_HIGHBITDEPTH) {
+    vp9_highbd_quantize_b(BLOCK_OFFSET(p->coeff, block),
+                          16, x->skip_block,
+                          p->zbin, p->round, p->quant, p->quant_shift,
+                          BLOCK_OFFSET(p->qcoeff, block),
+                          BLOCK_OFFSET(pd->dqcoeff, block),
+                          pd->dequant, &p->eobs[block],
+                          scan, iscan);
+    return;
+  }
+#endif
+  vp9_quantize_b(BLOCK_OFFSET(p->coeff, block),
+                 16, x->skip_block,
+                 p->zbin, p->round, p->quant, p->quant_shift,
+                 BLOCK_OFFSET(p->qcoeff, block),
+                 BLOCK_OFFSET(pd->dqcoeff, block),
+                 pd->dequant, &p->eobs[block], scan, iscan);
+}
+
+static void invert_quant(int16_t *quant, int16_t *shift, int d) {
+  unsigned t;
+  int l;
+  t = d;
+  for (l = 0; t > 1; l++)
+    t >>= 1;
+  t = 1 + (1 << (16 + l)) / d;
+  *quant = (int16_t)(t - (1 << 16));
+  *shift = 1 << (16 - l);
+}
+
+static int get_qzbin_factor(int q, vpx_bit_depth_t bit_depth) {
+  const int quant = vp9_dc_quant(q, 0, bit_depth);
+#if CONFIG_VP9_HIGHBITDEPTH
+  switch (bit_depth) {
+    case VPX_BITS_8:
+      return q == 0 ? 64 : (quant < 148 ? 84 : 80);
+    case VPX_BITS_10:
+      return q == 0 ? 64 : (quant < 592 ? 84 : 80);
+    case VPX_BITS_12:
+      return q == 0 ? 64 : (quant < 2368 ? 84 : 80);
+    default:
+      assert(0 && "bit_depth should be VPX_BITS_8, VPX_BITS_10 or VPX_BITS_12");
+      return -1;
+  }
+#else
+  (void) bit_depth;
+  return q == 0 ? 64 : (quant < 148 ? 84 : 80);
+#endif
+}
+
+void vp9_init_quantizer(VP9_COMP *cpi) {
+  VP9_COMMON *const cm = &cpi->common;
+  QUANTS *const quants = &cpi->quants;
+  int i, q, quant;
+
+  for (q = 0; q < QINDEX_RANGE; q++) {
+    const int qzbin_factor = get_qzbin_factor(q, cm->bit_depth);
+    const int qrounding_factor = q == 0 ? 64 : 48;
+
+    for (i = 0; i < 2; ++i) {
+      int qrounding_factor_fp = i == 0 ? 48 : 42;
+      if (q == 0)
+        qrounding_factor_fp = 64;
+
+      // y
+      quant = i == 0 ? vp9_dc_quant(q, cm->y_dc_delta_q, cm->bit_depth)
+                     : vp9_ac_quant(q, 0, cm->bit_depth);
+      invert_quant(&quants->y_quant[q][i], &quants->y_quant_shift[q][i], quant);
+      quants->y_quant_fp[q][i] = (1 << 16) / quant;
+      quants->y_round_fp[q][i] = (qrounding_factor_fp * quant) >> 7;
+      quants->y_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7);
+      quants->y_round[q][i] = (qrounding_factor * quant) >> 7;
+      cpi->y_dequant[q][i] = quant;
+
+      // uv
+      quant = i == 0 ? vp9_dc_quant(q, cm->uv_dc_delta_q, cm->bit_depth)
+                     : vp9_ac_quant(q, cm->uv_ac_delta_q, cm->bit_depth);
+      invert_quant(&quants->uv_quant[q][i],
+                   &quants->uv_quant_shift[q][i], quant);
+      quants->uv_quant_fp[q][i] = (1 << 16) / quant;
+      quants->uv_round_fp[q][i] = (qrounding_factor_fp * quant) >> 7;
+      quants->uv_zbin[q][i] = ROUND_POWER_OF_TWO(qzbin_factor * quant, 7);
+      quants->uv_round[q][i] = (qrounding_factor * quant) >> 7;
+      cpi->uv_dequant[q][i] = quant;
+    }
+
+    for (i = 2; i < 8; i++) {
+      quants->y_quant[q][i] = quants->y_quant[q][1];
+      quants->y_quant_fp[q][i] = quants->y_quant_fp[q][1];
+      quants->y_round_fp[q][i] = quants->y_round_fp[q][1];
+      quants->y_quant_shift[q][i] = quants->y_quant_shift[q][1];
+      quants->y_zbin[q][i] = quants->y_zbin[q][1];
+      quants->y_round[q][i] = quants->y_round[q][1];
+      cpi->y_dequant[q][i] = cpi->y_dequant[q][1];
+
+      quants->uv_quant[q][i] = quants->uv_quant[q][1];
+      quants->uv_quant_fp[q][i] = quants->uv_quant_fp[q][1];
+      quants->uv_round_fp[q][i] = quants->uv_round_fp[q][1];
+      quants->uv_quant_shift[q][i] = quants->uv_quant_shift[q][1];
+      quants->uv_zbin[q][i] = quants->uv_zbin[q][1];
+      quants->uv_round[q][i] = quants->uv_round[q][1];
+      cpi->uv_dequant[q][i] = cpi->uv_dequant[q][1];
+    }
+  }
+}
+
+void vp9_init_plane_quantizers(VP9_COMP *cpi, MACROBLOCK *x) {
+  const VP9_COMMON *const cm = &cpi->common;
+  MACROBLOCKD *const xd = &x->e_mbd;
+  QUANTS *const quants = &cpi->quants;
+  const int segment_id = xd->mi[0]->mbmi.segment_id;
+  const int qindex = vp9_get_qindex(&cm->seg, segment_id, cm->base_qindex);
+  const int rdmult = vp9_compute_rd_mult(cpi, qindex + cm->y_dc_delta_q);
+  int i;
+
+  // Y
+  x->plane[0].quant = quants->y_quant[qindex];
+  x->plane[0].quant_fp = quants->y_quant_fp[qindex];
+  x->plane[0].round_fp = quants->y_round_fp[qindex];
+  x->plane[0].quant_shift = quants->y_quant_shift[qindex];
+  x->plane[0].zbin = quants->y_zbin[qindex];
+  x->plane[0].round = quants->y_round[qindex];
+  xd->plane[0].dequant = cpi->y_dequant[qindex];
+
+  x->plane[0].quant_thred[0] = x->plane[0].zbin[0] * x->plane[0].zbin[0];
+  x->plane[0].quant_thred[1] = x->plane[0].zbin[1] * x->plane[0].zbin[1];
+
+  // UV
+  for (i = 1; i < 3; i++) {
+    x->plane[i].quant = quants->uv_quant[qindex];
+    x->plane[i].quant_fp = quants->uv_quant_fp[qindex];
+    x->plane[i].round_fp = quants->uv_round_fp[qindex];
+    x->plane[i].quant_shift = quants->uv_quant_shift[qindex];
+    x->plane[i].zbin = quants->uv_zbin[qindex];
+    x->plane[i].round = quants->uv_round[qindex];
+    xd->plane[i].dequant = cpi->uv_dequant[qindex];
+
+    x->plane[i].quant_thred[0] = x->plane[i].zbin[0] * x->plane[i].zbin[0];
+    x->plane[i].quant_thred[1] = x->plane[i].zbin[1] * x->plane[i].zbin[1];
+  }
+
+  x->skip_block = vp9_segfeature_active(&cm->seg, segment_id, SEG_LVL_SKIP);
+  x->q_index = qindex;
+
+  x->errorperbit = rdmult >> 6;
+  x->errorperbit += (x->errorperbit == 0);
+
+  vp9_initialize_me_consts(cpi, x, x->q_index);
+}
+
+void vp9_frame_init_quantizer(VP9_COMP *cpi) {
+  vp9_init_plane_quantizers(cpi, &cpi->td.mb);
+}
+
+void vp9_set_quantizer(VP9_COMMON *cm, int q) {
+  // quantizer has to be reinitialized with vp9_init_quantizer() if any
+  // delta_q changes.
+  cm->base_qindex = q;
+  cm->y_dc_delta_q = 0;
+  cm->uv_dc_delta_q = 0;
+  cm->uv_ac_delta_q = 0;
+}
+
+// Table that converts 0-63 Q-range values passed in outside to the Qindex
+// range used internally.
+static const int quantizer_to_qindex[] = {
+  0,    4,   8,  12,  16,  20,  24,  28,
+  32,   36,  40,  44,  48,  52,  56,  60,
+  64,   68,  72,  76,  80,  84,  88,  92,
+  96,  100, 104, 108, 112, 116, 120, 124,
+  128, 132, 136, 140, 144, 148, 152, 156,
+  160, 164, 168, 172, 176, 180, 184, 188,
+  192, 196, 200, 204, 208, 212, 216, 220,
+  224, 228, 232, 236, 240, 244, 249, 255,
+};
+
+int vp9_quantizer_to_qindex(int quantizer) {
+  return quantizer_to_qindex[quantizer];
+}
+
+int vp9_qindex_to_quantizer(int qindex) {
+  int quantizer;
+
+  for (quantizer = 0; quantizer < 64; ++quantizer)
+    if (quantizer_to_qindex[quantizer] >= qindex)
+      return quantizer;
+
+  return 63;
+}