//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public static ScalingList read(com.googlecode.mp4parser.h264.read.CAVLCReader is, int sizeOfScalingList) throws java.io.IOException
public static ScalingList read(CAVLCReader @is, int sizeOfScalingList)
{
ScalingList sl = new ScalingList();
sl.scalingList = new int[sizeOfScalingList];
int lastScale = 8;
int nextScale = 8;
for (int j = 0; j < sizeOfScalingList; j++)
{
if (nextScale != 0)
{
int deltaScale = @is.readSE("deltaScale");
nextScale = (lastScale + deltaScale + 256) % 256;
sl.useDefaultScalingMatrixFlag = (j == 0 && nextScale == 0);
}
sl.scalingList[j] = nextScale == 0 ? lastScale : nextScale;
lastScale = sl.scalingList[j];
}
return(sl);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: public static PictureParameterSet read(java.io.InputStream is) throws java.io.IOException
public static PictureParameterSet read(Stream @is)
{
CAVLCReader reader = new CAVLCReader(@is);
PictureParameterSet pps = new PictureParameterSet();
pps.pic_parameter_set_id = reader.readUE("PPS: pic_parameter_set_id");
pps.seq_parameter_set_id = reader.readUE("PPS: seq_parameter_set_id");
pps.entropy_coding_mode_flag = reader.readBool("PPS: entropy_coding_mode_flag");
pps.pic_order_present_flag = reader.readBool("PPS: pic_order_present_flag");
pps.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);
}
