Merge pull request #6490 from zaps166/webm-pr

Add WebM support

1 files changed, 192 insertions, 0 deletions

diff --git a/thirdparty/libvpx/vp9/common/vp9_pred_common.h b/thirdparty/libvpx/vp9/common/vp9_pred_common.h
new file mode 100644
index 0000000000..f3c676e953
--- /dev/null
+++ b/thirdparty/libvpx/vp9/common/vp9_pred_common.h
@@ -0,0 +1,192 @@
+/*
+ *  Copyright (c) 2012 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.
+ */
+
+#ifndef VP9_COMMON_VP9_PRED_COMMON_H_
+#define VP9_COMMON_VP9_PRED_COMMON_H_
+
+#include "vp9/common/vp9_blockd.h"
+#include "vp9/common/vp9_onyxc_int.h"
+#include "vpx_dsp/vpx_dsp_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+static INLINE int get_segment_id(const VP9_COMMON *cm,
+                                 const uint8_t *segment_ids,
+                                 BLOCK_SIZE bsize, int mi_row, int mi_col) {
+  const int mi_offset = mi_row * cm->mi_cols + mi_col;
+  const int bw = num_8x8_blocks_wide_lookup[bsize];
+  const int bh = num_8x8_blocks_high_lookup[bsize];
+  const int xmis = VPXMIN(cm->mi_cols - mi_col, bw);
+  const int ymis = VPXMIN(cm->mi_rows - mi_row, bh);
+  int x, y, segment_id = MAX_SEGMENTS;
+
+  for (y = 0; y < ymis; ++y)
+    for (x = 0; x < xmis; ++x)
+      segment_id =
+          VPXMIN(segment_id, segment_ids[mi_offset + y * cm->mi_cols + x]);
+
+  assert(segment_id >= 0 && segment_id < MAX_SEGMENTS);
+  return segment_id;
+}
+
+static INLINE int vp9_get_pred_context_seg_id(const MACROBLOCKD *xd) {
+  const MODE_INFO *const above_mi = xd->above_mi;
+  const MODE_INFO *const left_mi = xd->left_mi;
+  const int above_sip = (above_mi != NULL) ?
+                        above_mi->seg_id_predicted : 0;
+  const int left_sip = (left_mi != NULL) ? left_mi->seg_id_predicted : 0;
+
+  return above_sip + left_sip;
+}
+
+static INLINE vpx_prob vp9_get_pred_prob_seg_id(const struct segmentation *seg,
+                                                const MACROBLOCKD *xd) {
+  return seg->pred_probs[vp9_get_pred_context_seg_id(xd)];
+}
+
+static INLINE int vp9_get_skip_context(const MACROBLOCKD *xd) {
+  const MODE_INFO *const above_mi = xd->above_mi;
+  const MODE_INFO *const left_mi = xd->left_mi;
+  const int above_skip = (above_mi != NULL) ? above_mi->skip : 0;
+  const int left_skip = (left_mi != NULL) ? left_mi->skip : 0;
+  return above_skip + left_skip;
+}
+
+static INLINE vpx_prob vp9_get_skip_prob(const VP9_COMMON *cm,
+                                         const MACROBLOCKD *xd) {
+  return cm->fc->skip_probs[vp9_get_skip_context(xd)];
+}
+
+int vp9_get_pred_context_switchable_interp(const MACROBLOCKD *xd);
+
+// The mode info data structure has a one element border above and to the
+// left of the entries corresponding to real macroblocks.
+// The prediction flags in these dummy entries are initialized to 0.
+// 0 - inter/inter, inter/--, --/inter, --/--
+// 1 - intra/inter, inter/intra
+// 2 - intra/--, --/intra
+// 3 - intra/intra
+static INLINE int get_intra_inter_context(const MACROBLOCKD *xd) {
+  const MODE_INFO *const above_mi = xd->above_mi;
+  const MODE_INFO *const left_mi = xd->left_mi;
+  const int has_above = !!above_mi;
+  const int has_left = !!left_mi;
+
+  if (has_above && has_left) {  // both edges available
+    const int above_intra = !is_inter_block(above_mi);
+    const int left_intra = !is_inter_block(left_mi);
+    return left_intra && above_intra ? 3 : left_intra || above_intra;
+  } else if (has_above || has_left) {  // one edge available
+    return 2 * !is_inter_block(has_above ? above_mi : left_mi);
+  }
+  return 0;
+}
+
+static INLINE vpx_prob vp9_get_intra_inter_prob(const VP9_COMMON *cm,
+                                                const MACROBLOCKD *xd) {
+  return cm->fc->intra_inter_prob[get_intra_inter_context(xd)];
+}
+
+int vp9_get_reference_mode_context(const VP9_COMMON *cm, const MACROBLOCKD *xd);
+
+static INLINE vpx_prob vp9_get_reference_mode_prob(const VP9_COMMON *cm,
+                                                   const MACROBLOCKD *xd) {
+  return cm->fc->comp_inter_prob[vp9_get_reference_mode_context(cm, xd)];
+}
+
+int vp9_get_pred_context_comp_ref_p(const VP9_COMMON *cm,
+                                    const MACROBLOCKD *xd);
+
+static INLINE vpx_prob vp9_get_pred_prob_comp_ref_p(const VP9_COMMON *cm,
+                                                    const MACROBLOCKD *xd) {
+  const int pred_context = vp9_get_pred_context_comp_ref_p(cm, xd);
+  return cm->fc->comp_ref_prob[pred_context];
+}
+
+int vp9_get_pred_context_single_ref_p1(const MACROBLOCKD *xd);
+
+static INLINE vpx_prob vp9_get_pred_prob_single_ref_p1(const VP9_COMMON *cm,
+                                                       const MACROBLOCKD *xd) {
+  return cm->fc->single_ref_prob[vp9_get_pred_context_single_ref_p1(xd)][0];
+}
+
+int vp9_get_pred_context_single_ref_p2(const MACROBLOCKD *xd);
+
+static INLINE vpx_prob vp9_get_pred_prob_single_ref_p2(const VP9_COMMON *cm,
+                                                       const MACROBLOCKD *xd) {
+  return cm->fc->single_ref_prob[vp9_get_pred_context_single_ref_p2(xd)][1];
+}
+
+// Returns a context number for the given MB prediction signal
+// The mode info data structure has a one element border above and to the
+// left of the entries corresponding to real blocks.
+// The prediction flags in these dummy entries are initialized to 0.
+static INLINE int get_tx_size_context(const MACROBLOCKD *xd) {
+  const int max_tx_size = max_txsize_lookup[xd->mi[0]->sb_type];
+  const MODE_INFO *const above_mi = xd->above_mi;
+  const MODE_INFO *const left_mi = xd->left_mi;
+  const int has_above = !!above_mi;
+  const int has_left = !!left_mi;
+  int above_ctx = (has_above && !above_mi->skip) ? (int)above_mi->tx_size
+                                                 : max_tx_size;
+  int left_ctx = (has_left && !left_mi->skip) ? (int)left_mi->tx_size
+                                              : max_tx_size;
+  if (!has_left)
+    left_ctx = above_ctx;
+
+  if (!has_above)
+    above_ctx = left_ctx;
+
+  return (above_ctx + left_ctx) > max_tx_size;
+}
+
+static INLINE const vpx_prob *get_tx_probs(TX_SIZE max_tx_size, int ctx,
+                                           const struct tx_probs *tx_probs) {
+  switch (max_tx_size) {
+    case TX_8X8:
+      return tx_probs->p8x8[ctx];
+    case TX_16X16:
+      return tx_probs->p16x16[ctx];
+    case TX_32X32:
+      return tx_probs->p32x32[ctx];
+    default:
+      assert(0 && "Invalid max_tx_size.");
+      return NULL;
+  }
+}
+
+static INLINE const vpx_prob *get_tx_probs2(TX_SIZE max_tx_size,
+                                            const MACROBLOCKD *xd,
+                                            const struct tx_probs *tx_probs) {
+  return get_tx_probs(max_tx_size, get_tx_size_context(xd), tx_probs);
+}
+
+static INLINE unsigned int *get_tx_counts(TX_SIZE max_tx_size, int ctx,
+                                          struct tx_counts *tx_counts) {
+  switch (max_tx_size) {
+    case TX_8X8:
+      return tx_counts->p8x8[ctx];
+    case TX_16X16:
+      return tx_counts->p16x16[ctx];
+    case TX_32X32:
+      return tx_counts->p32x32[ctx];
+    default:
+      assert(0 && "Invalid max_tx_size.");
+      return NULL;
+  }
+}
+
+#ifdef __cplusplus
+}  // extern "C"
+#endif
+
+#endif  // VP9_COMMON_VP9_PRED_COMMON_H_