Initial community commit

1 files changed, 244 insertions, 0 deletions

diff --git a/Src/h264dec/lcommon/src/parsetcommon.c b/Src/h264dec/lcommon/src/parsetcommon.c
new file mode 100644
index 00000000..fe3f0e9a
--- /dev/null
+++ b/Src/h264dec/lcommon/src/parsetcommon.c
@@ -0,0 +1,244 @@
+
+/*!
+ **************************************************************************************
+ * \file
+ *    parsetcommon.c
+ * \brief
+ *    Picture and Sequence Parameter set generation and handling
+ *  \date 25 November 2002
+ * \author
+ *    Main contributors (see contributors.h for copyright, address and affiliation details)
+ *      - Stephan Wenger        <stewe@cs.tu-berlin.de>
+ *
+ **************************************************************************************
+ */
+
+#include "global.h"
+#include "parsetcommon.h"
+#include "memalloc.h"
+/*!
+ *************************************************************************************
+ * \brief
+ *    Allocates memory for a picture paramater set
+ *
+ * \return
+ *    pointer to a pps
+ *************************************************************************************
+ */
+
+pic_parameter_set_rbsp_t *AllocPPS ()
+ {
+   pic_parameter_set_rbsp_t *p;
+
+   if ((p=calloc (sizeof (pic_parameter_set_rbsp_t), 1)) == NULL)
+     no_mem_exit ("AllocPPS: PPS");
+   p->slice_group_id = NULL;
+   return p;
+ }
+
+
+/*!
+ *************************************************************************************
+ * \brief
+ *    Allocates memory for am sequence paramater set
+ *
+ * \return
+ *    pointer to a sps
+ *************************************************************************************
+ */
+
+seq_parameter_set_rbsp_t *AllocSPS ()
+ {
+   seq_parameter_set_rbsp_t *p;
+
+   if ((p=calloc (sizeof (seq_parameter_set_rbsp_t), 1)) == NULL)
+     no_mem_exit ("AllocSPS: SPS");
+   return p;
+ }
+
+
+/*!
+ *************************************************************************************
+ * \brief
+ *    Frees a picture parameter set
+ *
+ * \param pps to be freed
+ *   Picture parameter set to be freed
+ *************************************************************************************
+ */
+
+ void FreePPS (pic_parameter_set_rbsp_t *pps)
+ {
+   assert (pps != NULL);
+   if (pps->slice_group_id != NULL) 
+     free (pps->slice_group_id);
+   free (pps);
+ }
+
+
+ /*!
+ *************************************************************************************
+ * \brief
+ *    Frees a sps
+ *
+ * \param sps
+ *   Sequence parameter set to be freed
+ *************************************************************************************
+ */
+
+ void FreeSPS (seq_parameter_set_rbsp_t *sps)
+ {
+   assert (sps != NULL);
+   free (sps);
+ }
+
+
+int sps_is_equal(seq_parameter_set_rbsp_t *sps1, seq_parameter_set_rbsp_t *sps2)
+{
+  unsigned i;
+  int equal = 1;
+
+  if ((!sps1->Valid) || (!sps2->Valid))
+    return 0;
+
+  equal &= (sps1->profile_idc == sps2->profile_idc);
+  equal &= (sps1->constrained_set0_flag == sps2->constrained_set0_flag);
+  equal &= (sps1->constrained_set1_flag == sps2->constrained_set1_flag);
+  equal &= (sps1->constrained_set2_flag == sps2->constrained_set2_flag);
+  equal &= (sps1->level_idc == sps2->level_idc);
+  equal &= (sps1->seq_parameter_set_id == sps2->seq_parameter_set_id);
+  equal &= (sps1->log2_max_frame_num_minus4 == sps2->log2_max_frame_num_minus4);
+  equal &= (sps1->pic_order_cnt_type == sps2->pic_order_cnt_type);
+
+  if (!equal) return equal;
+
+  if( sps1->pic_order_cnt_type == 0 )
+  {
+    equal &= (sps1->log2_max_pic_order_cnt_lsb_minus4 == sps2->log2_max_pic_order_cnt_lsb_minus4);
+  }
+
+  else if( sps1->pic_order_cnt_type == 1 )
+  {
+    equal &= (sps1->delta_pic_order_always_zero_flag == sps2->delta_pic_order_always_zero_flag);
+    equal &= (sps1->offset_for_non_ref_pic == sps2->offset_for_non_ref_pic);
+    equal &= (sps1->offset_for_top_to_bottom_field == sps2->offset_for_top_to_bottom_field);
+    equal &= (sps1->num_ref_frames_in_pic_order_cnt_cycle == sps2->num_ref_frames_in_pic_order_cnt_cycle);
+    if (!equal) return equal;
+
+    for ( i = 0 ; i< sps1->num_ref_frames_in_pic_order_cnt_cycle ;i ++)
+      equal &= (sps1->offset_for_ref_frame[i] == sps2->offset_for_ref_frame[i]);
+  }
+
+  equal &= (sps1->num_ref_frames == sps2->num_ref_frames);
+  equal &= (sps1->gaps_in_frame_num_value_allowed_flag == sps2->gaps_in_frame_num_value_allowed_flag);
+  equal &= (sps1->pic_width_in_mbs_minus1 == sps2->pic_width_in_mbs_minus1);
+  equal &= (sps1->pic_height_in_map_units_minus1 == sps2->pic_height_in_map_units_minus1);
+  equal &= (sps1->frame_mbs_only_flag == sps2->frame_mbs_only_flag);
+
+  if (!equal) return equal;
+  if( !sps1->frame_mbs_only_flag )
+    equal &= (sps1->mb_adaptive_frame_field_flag == sps2->mb_adaptive_frame_field_flag);
+
+  equal &= (sps1->direct_8x8_inference_flag == sps2->direct_8x8_inference_flag);
+  equal &= (sps1->frame_cropping_flag == sps2->frame_cropping_flag);
+  if (!equal) return equal;
+  if (sps1->frame_cropping_flag)
+  {
+    equal &= (sps1->frame_cropping_rect_left_offset == sps2->frame_cropping_rect_left_offset);
+    equal &= (sps1->frame_cropping_rect_right_offset == sps2->frame_cropping_rect_right_offset);
+    equal &= (sps1->frame_cropping_rect_top_offset == sps2->frame_cropping_rect_top_offset);
+    equal &= (sps1->frame_cropping_rect_bottom_offset == sps2->frame_cropping_rect_bottom_offset);
+  }
+  equal &= (sps1->vui_parameters_present_flag == sps2->vui_parameters_present_flag);
+
+  return equal;
+}
+
+int pps_is_equal(pic_parameter_set_rbsp_t *pps1, pic_parameter_set_rbsp_t *pps2)
+{
+  unsigned i, j;
+  int equal = 1;
+
+  if ((!pps1->Valid) || (!pps2->Valid))
+    return 0;
+
+  equal &= (pps1->pic_parameter_set_id == pps2->pic_parameter_set_id);
+  equal &= (pps1->seq_parameter_set_id == pps2->seq_parameter_set_id);
+  equal &= (pps1->entropy_coding_mode_flag == pps2->entropy_coding_mode_flag);
+  equal &= (pps1->bottom_field_pic_order_in_frame_present_flag == pps2->bottom_field_pic_order_in_frame_present_flag);
+  equal &= (pps1->num_slice_groups_minus1 == pps2->num_slice_groups_minus1);
+
+  if (!equal) return equal;
+
+  if (pps1->num_slice_groups_minus1>0)
+  {
+      equal &= (pps1->slice_group_map_type == pps2->slice_group_map_type);
+      if (!equal) return equal;
+      if (pps1->slice_group_map_type == 0)
+      {
+        for (i=0; i<=pps1->num_slice_groups_minus1; i++)
+          equal &= (pps1->run_length_minus1[i] == pps2->run_length_minus1[i]);
+      }
+      else if( pps1->slice_group_map_type == 2 )
+      {
+        for (i=0; i<pps1->num_slice_groups_minus1; i++)
+        {
+          equal &= (pps1->top_left[i] == pps2->top_left[i]);
+          equal &= (pps1->bottom_right[i] == pps2->bottom_right[i]);
+        }
+      }
+      else if( pps1->slice_group_map_type == 3 || pps1->slice_group_map_type==4 || pps1->slice_group_map_type==5 )
+      {
+        equal &= (pps1->slice_group_change_direction_flag == pps2->slice_group_change_direction_flag);
+        equal &= (pps1->slice_group_change_rate_minus1 == pps2->slice_group_change_rate_minus1);
+      }
+      else if( pps1->slice_group_map_type == 6 )
+      {
+        equal &= (pps1->pic_size_in_map_units_minus1 == pps2->pic_size_in_map_units_minus1);
+        if (!equal) return equal;
+        for (i=0; i<=pps1->pic_size_in_map_units_minus1; i++)
+          equal &= (pps1->slice_group_id[i] == pps2->slice_group_id[i]);
+      }
+  }
+
+  equal &= (pps1->num_ref_idx_l0_active_minus1 == pps2->num_ref_idx_l0_active_minus1);
+  equal &= (pps1->num_ref_idx_l1_active_minus1 == pps2->num_ref_idx_l1_active_minus1);
+  equal &= (pps1->weighted_pred_flag == pps2->weighted_pred_flag);
+  equal &= (pps1->weighted_bipred_idc == pps2->weighted_bipred_idc);
+  equal &= (pps1->pic_init_qp_minus26 == pps2->pic_init_qp_minus26);
+  equal &= (pps1->pic_init_qs_minus26 == pps2->pic_init_qs_minus26);
+  equal &= (pps1->chroma_qp_index_offset == pps2->chroma_qp_index_offset);
+  equal &= (pps1->deblocking_filter_control_present_flag == pps2->deblocking_filter_control_present_flag);
+  equal &= (pps1->constrained_intra_pred_flag == pps2->constrained_intra_pred_flag);
+  equal &= (pps1->redundant_pic_cnt_present_flag == pps2->redundant_pic_cnt_present_flag);
+
+  if (!equal) return equal;
+
+  //Fidelity Range Extensions Stuff
+  //It is initialized to zero, so should be ok to check all the time.
+  equal &= (pps1->transform_8x8_mode_flag == pps2->transform_8x8_mode_flag);
+  equal &= (pps1->pic_scaling_matrix_present_flag == pps2->pic_scaling_matrix_present_flag);
+  if(pps1->pic_scaling_matrix_present_flag)
+  {
+    for(i = 0; i < (6 + ((unsigned)pps1->transform_8x8_mode_flag << 1)); i++)
+    {
+      equal &= (pps1->pic_scaling_list_present_flag[i] == pps2->pic_scaling_list_present_flag[i]);
+      if(pps1->pic_scaling_list_present_flag[i])
+      {
+        if(i < 6)
+        {
+          for (j = 0; j < 16; j++)
+            equal &= (pps1->ScalingList4x4[i][j] == pps2->ScalingList4x4[i][j]);
+        }
+        else
+        {
+          for (j = 0; j < 64; j++)
+            equal &= (pps1->ScalingList8x8[i-6][j] == pps2->ScalingList8x8[i-6][j]);
+        }
+      }
+    }
+  }
+  equal &= (pps1->second_chroma_qp_index_offset == pps2->second_chroma_qp_index_offset);
+
+  return equal;
+}