public override bool Equals(object obj)
{
if (this == obj)
{
return(true);
}
if (obj == null)
{
return(false);
}
if (this.GetType() != obj.GetType())
{
return(false);
}
PictureParameterSet other = (PictureParameterSet)obj;
if (!Array.Equals(bottom_right, other.bottom_right))
{
return(false);
}
if (chroma_qp_index_offset != other.chroma_qp_index_offset)
{
return(false);
}
if (constrained_intra_pred_flag != other.constrained_intra_pred_flag)
{
return(false);
}
if (deblocking_filter_control_present_flag != other.deblocking_filter_control_present_flag)
{
return(false);
}
if (entropy_coding_mode_flag != other.entropy_coding_mode_flag)
{
return(false);
}
if (extended == null)
{
if (other.extended != null)
{
return(false);
}
}
else if (!extended.Equals(other.extended))
{
return(false);
}
if (num_ref_idx_l0_active_minus1 != other.num_ref_idx_l0_active_minus1)
{
return(false);
}
if (num_ref_idx_l1_active_minus1 != other.num_ref_idx_l1_active_minus1)
{
return(false);
}
if (num_slice_groups_minus1 != other.num_slice_groups_minus1)
{
return(false);
}
if (pic_init_qp_minus26 != other.pic_init_qp_minus26)
{
return(false);
}
if (pic_init_qs_minus26 != other.pic_init_qs_minus26)
{
return(false);
}
if (pic_order_present_flag != other.pic_order_present_flag)
{
return(false);
}
if (pic_parameter_set_id != other.pic_parameter_set_id)
{
return(false);
}
if (redundant_pic_cnt_present_flag != other.redundant_pic_cnt_present_flag)
{
return(false);
}
if (!Array.Equals(run_length_minus1, other.run_length_minus1))
{
return(false);
}
if (seq_parameter_set_id != other.seq_parameter_set_id)
{
return(false);
}
if (slice_group_change_direction_flag != other.slice_group_change_direction_flag)
{
return(false);
}
if (slice_group_change_rate_minus1 != other.slice_group_change_rate_minus1)
{
return(false);
}
if (!Array.Equals(slice_group_id, other.slice_group_id))
{
return(false);
}
if (slice_group_map_type != other.slice_group_map_type)
{
return(false);
}
if (!Array.Equals(top_left, other.top_left))
{
return(false);
}
if (weighted_bipred_idc != other.weighted_bipred_idc)
{
return(false);
}
if (weighted_pred_flag != other.weighted_pred_flag)
{
return(false);
}
return(true);
}
public static PictureParameterSet read(Stream @is)
{
var reader = new CAVLCReader(@is);
PictureParameterSet pps = new PictureParameterSet
{
pic_parameter_set_id = reader.ReadUE("PPS: pic_parameter_set_id"),
seq_parameter_set_id = reader.ReadUE("PPS: seq_parameter_set_id"),
entropy_coding_mode_flag = reader.ReadBool("PPS: entropy_coding_mode_flag"),
pic_order_present_flag = reader.ReadBool("PPS: pic_order_present_flag"),
num_slice_groups_minus1 = reader.ReadUE("PPS: num_slice_groups_minus1")
};
if (pps.num_slice_groups_minus1 > 0)
{
pps.slice_group_map_type = reader.ReadUE("PPS: slice_group_map_type");
pps.top_left = new int[pps.num_slice_groups_minus1 + 1];
pps.bottom_right = new int[pps.num_slice_groups_minus1 + 1];
pps.run_length_minus1 = new int[pps.num_slice_groups_minus1 + 1];
if (pps.slice_group_map_type == 0)
{
for (int iGroup = 0; iGroup <= pps.num_slice_groups_minus1; iGroup++)
{
pps.run_length_minus1[iGroup] = reader.ReadUE("PPS: run_length_minus1");
}
}
else if (pps.slice_group_map_type == 2)
{
for (int iGroup = 0; iGroup < pps.num_slice_groups_minus1; iGroup++)
{
pps.top_left[iGroup] = reader.ReadUE("PPS: top_left");
pps.bottom_right[iGroup] = reader.ReadUE("PPS: bottom_right");
}
}
else if (pps.slice_group_map_type == 3 || pps.slice_group_map_type == 4 || pps.slice_group_map_type == 5)
{
pps.slice_group_change_direction_flag = reader.ReadBool("PPS: slice_group_change_direction_flag");
pps.slice_group_change_rate_minus1 = reader.ReadUE("PPS: slice_group_change_rate_minus1");
}
else if (pps.slice_group_map_type == 6)
{
int NumberBitsPerSliceGroupId;
if (pps.num_slice_groups_minus1 + 1 > 4)
{
NumberBitsPerSliceGroupId = 3;
}
else if (pps.num_slice_groups_minus1 + 1 > 2)
{
NumberBitsPerSliceGroupId = 2;
}
else
{
NumberBitsPerSliceGroupId = 1;
}
int pic_size_in_map_units_minus1 = reader.ReadUE("PPS: pic_size_in_map_units_minus1");
pps.slice_group_id = new int[pic_size_in_map_units_minus1 + 1];
for (int i = 0; i <= pic_size_in_map_units_minus1; i++)
{
pps.slice_group_id[i] = reader.ReadU(NumberBitsPerSliceGroupId, "PPS: slice_group_id [" + i + "]f");
}
}
}
pps.num_ref_idx_l0_active_minus1 = reader.ReadUE("PPS: num_ref_idx_l0_active_minus1");
pps.num_ref_idx_l1_active_minus1 = reader.ReadUE("PPS: num_ref_idx_l1_active_minus1");
pps.weighted_pred_flag = reader.ReadBool("PPS: weighted_pred_flag");
pps.weighted_bipred_idc = (int)reader.ReadNBit(2, "PPS: weighted_bipred_idc");
pps.pic_init_qp_minus26 = reader.ReadSE("PPS: pic_init_qp_minus26");
pps.pic_init_qs_minus26 = reader.ReadSE("PPS: pic_init_qs_minus26");
pps.chroma_qp_index_offset = reader.ReadSE("PPS: chroma_qp_index_offset");
pps.deblocking_filter_control_present_flag = reader.ReadBool("PPS: deblocking_filter_control_present_flag");
pps.constrained_intra_pred_flag = reader.ReadBool("PPS: constrained_intra_pred_flag");
pps.redundant_pic_cnt_present_flag = reader.ReadBool("PPS: redundant_pic_cnt_present_flag");
if (reader.moreRBSPData())
{
pps.extended = new PictureParameterSet.PPSExt();
pps.extended.transform_8x8_mode_flag = reader.ReadBool("PPS: transform_8x8_mode_flag");
bool pic_scaling_matrix_present_flag = reader.ReadBool("PPS: pic_scaling_matrix_present_flag");
if (pic_scaling_matrix_present_flag)
{
for (int i = 0; i < 6 + 2 * (pps.extended.transform_8x8_mode_flag ? 1 : 0); i++)
{
bool pic_scaling_list_present_flag = reader.ReadBool("PPS: pic_scaling_list_present_flag");
if (pic_scaling_list_present_flag)
{
pps.extended.scalindMatrix.ScalingList4x4 = new ScalingList[8];
pps.extended.scalindMatrix.ScalingList8x8 = new ScalingList[8];
if (i < 6)
{
pps.extended.scalindMatrix.ScalingList4x4[i] = ScalingList.read(reader, 16);
}
else
{
pps.extended.scalindMatrix.ScalingList8x8[i - 6] = ScalingList.read(reader, 64);
}
}
}
}
pps.extended.second_chroma_qp_index_offset = reader.ReadSE("PPS: second_chroma_qp_index_offset");
}
reader.ReadTrailingBits();
return(pps);
}