Move libvpx from DEPS to src

third_party/libvpx/source/libvpx/vp8/encoder/mr_dissim.c

Index: third_party/libvpx/source/libvpx/vp8/encoder/mr_dissim.c
diff --git a/third_party/libvpx/source/libvpx/vp8/encoder/mr_dissim.c b/third_party/libvpx/source/libvpx/vp8/encoder/mr_dissim.c
new file mode 100644
index 0000000000000000000000000000000000000000..8d96445f53ce71c90be48660df20579fc069b81d
--- /dev/null
+++ b/third_party/libvpx/source/libvpx/vp8/encoder/mr_dissim.c
@@ -0,0 +1,237 @@
+/*
+ *  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 <limits.h>
+#include "vpx_config.h"
+#include "onyx_int.h"
+#include "mr_dissim.h"
+#include "vpx_mem/vpx_mem.h"
+#include "rdopt.h"
+#include "vp8/common/common.h"
+
+void vp8_cal_low_res_mb_cols(VP8_COMP *cpi)
+{
+    int low_res_w;
+
+    /* Support arbitrary down-sampling factor */
+    unsigned int iw = cpi->oxcf.Width*cpi->oxcf.mr_down_sampling_factor.den
+                      + cpi->oxcf.mr_down_sampling_factor.num - 1;
+
+    low_res_w = iw/cpi->oxcf.mr_down_sampling_factor.num;
+    cpi->mr_low_res_mb_cols = ((low_res_w + 15) >> 4);
+}
+
+#define GET_MV(x)    \
+if(x->mbmi.ref_frame !=INTRA_FRAME)   \
+{   \
+    mvx[cnt] = x->mbmi.mv.as_mv.row;  \
+    mvy[cnt] = x->mbmi.mv.as_mv.col;  \
+    cnt++;    \
+}
+
+#define GET_MV_SIGN(x)    \
+if(x->mbmi.ref_frame !=INTRA_FRAME)   \
+{   \
+    mvx[cnt] = x->mbmi.mv.as_mv.row;  \
+    mvy[cnt] = x->mbmi.mv.as_mv.col;  \
+    if (cm->ref_frame_sign_bias[x->mbmi.ref_frame]  \
+        != cm->ref_frame_sign_bias[tmp->mbmi.ref_frame])  \
+    {  \
+        mvx[cnt] *= -1;   \
+        mvy[cnt] *= -1;   \
+    }  \
+    cnt++;  \
+}
+
+void vp8_cal_dissimilarity(VP8_COMP *cpi)
+{
+    VP8_COMMON *cm = &cpi->common;
+    int i;
+
+    /* Note: The first row & first column in mip are outside the frame, which
+     * were initialized to all 0.(ref_frame, mode, mv...)
+     * Their ref_frame = 0 means they won't be counted in the following
+     * calculation.
+     */
+    if (cpi->oxcf.mr_total_resolutions >1
+        && cpi->oxcf.mr_encoder_id < (cpi->oxcf.mr_total_resolutions - 1))
+    {
+        /* Store info for show/no-show frames for supporting alt_ref.
+         * If parent frame is alt_ref, child has one too.
+         */
+        LOWER_RES_FRAME_INFO* store_info
+                      = (LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info;
+
+        store_info->frame_type = cm->frame_type;
+
+        if(cm->frame_type != KEY_FRAME)
+        {
+            store_info->is_frame_dropped = 0;
+            for (i = 1; i < MAX_REF_FRAMES; i++)
+                store_info->low_res_ref_frames[i] = cpi->current_ref_frames[i];
+        }
+
+        if(cm->frame_type != KEY_FRAME)
+        {
+            int mb_row;
+            int mb_col;
+            /* Point to beginning of allocated MODE_INFO arrays. */
+            MODE_INFO *tmp = cm->mip + cm->mode_info_stride;
+            LOWER_RES_MB_INFO* store_mode_info = store_info->mb_info;
+
+            for (mb_row = 0; mb_row < cm->mb_rows; mb_row ++)
+            {
+                tmp++;
+                for (mb_col = 0; mb_col < cm->mb_cols; mb_col ++)
+                {
+                    int dissim = INT_MAX;
+
+                    if(tmp->mbmi.ref_frame !=INTRA_FRAME)
+                    {
+                        int              mvx[8];
+                        int              mvy[8];
+                        int              mmvx;
+                        int              mmvy;
+                        int              cnt=0;
+                        const MODE_INFO *here = tmp;
+                        const MODE_INFO *above = here - cm->mode_info_stride;
+                        const MODE_INFO *left = here - 1;
+                        const MODE_INFO *aboveleft = above - 1;
+                        const MODE_INFO *aboveright = NULL;
+                        const MODE_INFO *right = NULL;
+                        const MODE_INFO *belowleft = NULL;
+                        const MODE_INFO *below = NULL;
+                        const MODE_INFO *belowright = NULL;
+
+                        /* If alternate reference frame is used, we have to
+                         * check sign of MV. */
+                        if(cpi->oxcf.play_alternate)
+                        {
+                            /* Gather mv of neighboring MBs */
+                            GET_MV_SIGN(above)
+                            GET_MV_SIGN(left)
+                            GET_MV_SIGN(aboveleft)
+
+                            if(mb_col < (cm->mb_cols-1))
+                            {
+                                right = here + 1;
+                                aboveright = above + 1;
+                                GET_MV_SIGN(right)
+                                GET_MV_SIGN(aboveright)
+                            }
+
+                            if(mb_row < (cm->mb_rows-1))
+                            {
+                                below = here + cm->mode_info_stride;
+                                belowleft = below - 1;
+                                GET_MV_SIGN(below)
+                                GET_MV_SIGN(belowleft)
+                            }
+
+                            if(mb_col < (cm->mb_cols-1)
+                                && mb_row < (cm->mb_rows-1))
+                            {
+                                belowright = below + 1;
+                                GET_MV_SIGN(belowright)
+                            }
+                        }else
+                        {
+                            /* No alt_ref and gather mv of neighboring MBs */
+                            GET_MV(above)
+                            GET_MV(left)
+                            GET_MV(aboveleft)
+
+                            if(mb_col < (cm->mb_cols-1))
+                            {
+                                right = here + 1;
+                                aboveright = above + 1;
+                                GET_MV(right)
+                                GET_MV(aboveright)
+                            }
+
+                            if(mb_row < (cm->mb_rows-1))
+                            {
+                                below = here + cm->mode_info_stride;
+                                belowleft = below - 1;
+                                GET_MV(below)
+                                GET_MV(belowleft)
+                            }
+
+                            if(mb_col < (cm->mb_cols-1)
+                                && mb_row < (cm->mb_rows-1))
+                            {
+                                belowright = below + 1;
+                                GET_MV(belowright)
+                            }
+                        }
+
+                        if (cnt > 0)
+                        {
+                            int max_mvx = mvx[0];
+                            int min_mvx = mvx[0];
+                            int max_mvy = mvy[0];
+                            int min_mvy = mvy[0];
+                            int i;
+
+                            if (cnt > 1)
+                            {
+                                for (i=1; i< cnt; i++)
+                                {
+                                    if (mvx[i] > max_mvx) max_mvx = mvx[i];
+                                    else if (mvx[i] < min_mvx) min_mvx = mvx[i];
+                                    if (mvy[i] > max_mvy) max_mvy = mvy[i];
+                                    else if (mvy[i] < min_mvy) min_mvy = mvy[i];
+                                }
+                            }
+
+                            mmvx = MAX(abs(min_mvx - here->mbmi.mv.as_mv.row),
+                                       abs(max_mvx - here->mbmi.mv.as_mv.row));
+                            mmvy = MAX(abs(min_mvy - here->mbmi.mv.as_mv.col),
+                                       abs(max_mvy - here->mbmi.mv.as_mv.col));
+                            dissim = MAX(mmvx, mmvy);
+                        }
+                    }
+
+                    /* Store mode info for next resolution encoding */
+                    store_mode_info->mode = tmp->mbmi.mode;
+                    store_mode_info->ref_frame = tmp->mbmi.ref_frame;
+                    store_mode_info->mv.as_int = tmp->mbmi.mv.as_int;
+                    store_mode_info->dissim = dissim;
+                    tmp++;
+                    store_mode_info++;
+                }
+            }
+        }
+    }
+}
+
+/* This function is called only when this frame is dropped at current
+   resolution level. */
+void vp8_store_drop_frame_info(VP8_COMP *cpi)
+{
+    /* If the frame is dropped in lower-resolution encoding, this information
+       is passed to higher resolution level so that the encoder knows there
+       is no mode & motion info available.
+     */
+    if (cpi->oxcf.mr_total_resolutions >1
+        && cpi->oxcf.mr_encoder_id < (cpi->oxcf.mr_total_resolutions - 1))
+    {
+        /* Store info for show/no-show frames for supporting alt_ref.
+         * If parent frame is alt_ref, child has one too.
+         */
+        LOWER_RES_FRAME_INFO* store_info
+                      = (LOWER_RES_FRAME_INFO*)cpi->oxcf.mr_low_res_mode_info;
+
+        /* Set frame_type to be INTER_FRAME since we won't drop key frame. */
+        store_info->frame_type = INTER_FRAME;
+        store_info->is_frame_dropped = 1;
+    }
+}