private void writeOffsetWeight(SliceHeader sliceHeader, BitWriter writer, int list)
{
SeqParameterSet sps = sliceHeader.sps;
int defaultLW = 1 << sliceHeader.pred_weight_table.luma_log2_weight_denom;
int defaultCW = 1 << sliceHeader.pred_weight_table.chroma_log2_weight_denom;
for (int i = 0; i < sliceHeader.pred_weight_table.luma_weight[list].Length; i++)
{
bool flagLuma = sliceHeader.pred_weight_table.luma_weight[list][i] != defaultLW ||
sliceHeader.pred_weight_table.luma_offset[list][i] != 0;
CAVLCWriter.writeBool(writer, flagLuma, "SH: luma_weight_l0_flag");
if (flagLuma)
{
CAVLCWriter.writeSE(writer, sliceHeader.pred_weight_table.luma_weight[list][i], "SH: luma_weight_l" + list);
CAVLCWriter.writeSE(writer, sliceHeader.pred_weight_table.luma_offset[list][i], "SH: luma_offset_l" + list);
}
if (sps.chroma_format_idc != ColorSpace.MONO)
{
bool flagChroma = sliceHeader.pred_weight_table.chroma_weight[list][0][i] != defaultCW ||
sliceHeader.pred_weight_table.chroma_offset[list][0][i] != 0 ||
sliceHeader.pred_weight_table.chroma_weight[list][1][i] != defaultCW ||
sliceHeader.pred_weight_table.chroma_offset[list][1][i] != 0;
CAVLCWriter.writeBool(writer, flagChroma, "SH: chroma_weight_l0_flag");
if (flagChroma)
{
for (int j = 0; j < 2; j++)
{
CAVLCWriter.writeSE(writer, sliceHeader.pred_weight_table.chroma_weight[list][j][i], "SH: chroma_weight_l" + list);
CAVLCWriter.writeSE(writer, sliceHeader.pred_weight_table.chroma_offset[list][j][i], "SH: chroma_offset_l" + list);
}
}
}
}
}
public void write(BitWriter outb)
{
if (useDefaultScalingMatrixFlag)
{
CAVLCWriter.writeSE(outb, 0, "SPS: ");
return;
}
int lastScale = 8;
int nextScale = 8;
for (int j = 0; j < scalingList.Length; j++)
{
if (nextScale != 0)
{
int deltaScale = scalingList[j] - lastScale - 256;
CAVLCWriter.writeSE(outb, deltaScale, "SPS: ");
}
lastScale = scalingList[j];
}
}
public void write(MemoryStream outb)
{
BitWriter writer = new BitWriter(outb);
CAVLCWriter.writeNBit(writer, profile_idc, 8, "SPS: profile_idc");
CAVLCWriter.writeBool(writer, constraint_set_0_flag, "SPS: constraint_set_0_flag");
CAVLCWriter.writeBool(writer, constraint_set_1_flag, "SPS: constraint_set_1_flag");
CAVLCWriter.writeBool(writer, constraint_set_2_flag, "SPS: constraint_set_2_flag");
CAVLCWriter.writeBool(writer, constraint_set_3_flag, "SPS: constraint_set_3_flag");
CAVLCWriter.writeNBit(writer, 0, 4, "SPS: reserved");
CAVLCWriter.writeNBit(writer, level_idc, 8, "SPS: level_idc");
CAVLCWriter.writeUE(writer, seq_parameter_set_id, "SPS: seq_parameter_set_id");
if (profile_idc == 100 || profile_idc == 110 || profile_idc == 122 || profile_idc == 144)
{
CAVLCWriter.writeUE(writer, fromColor(chroma_format_idc), "SPS: chroma_format_idc");
if (chroma_format_idc == ColorSpace.YUV444)
{
CAVLCWriter.writeBool(writer, residual_color_transform_flag, "SPS: residual_color_transform_flag");
}
CAVLCWriter.writeUE(writer, bit_depth_luma_minus8, "SPS: ");
CAVLCWriter.writeUE(writer, bit_depth_chroma_minus8, "SPS: ");
CAVLCWriter.writeBool(writer, qpprime_y_zero_transform_bypass_flag, "SPS: qpprime_y_zero_transform_bypass_flag");
CAVLCWriter.writeBool(writer, scalingMatrix != null, "SPS: ");
if (scalingMatrix != null)
{
for (int i = 0; i < 8; i++)
{
if (i < 6)
{
CAVLCWriter.writeBool(writer, (scalingMatrix.ScalingList4x4[i] != null), "SPS: ");
if (scalingMatrix.ScalingList4x4[i] != null)
{
scalingMatrix.ScalingList4x4[i].write(writer);
}
}
else
{
CAVLCWriter.writeBool(writer, (scalingMatrix.ScalingList8x8[i - 6] != null), "SPS: ");
if (scalingMatrix.ScalingList8x8[i - 6] != null)
{
scalingMatrix.ScalingList8x8[i - 6].write(writer);
}
}
}
}
}
CAVLCWriter.writeUE(writer, log2_max_frame_num_minus4, "SPS: log2_max_frame_num_minus4");
CAVLCWriter.writeUE(writer, pic_order_cnt_type, "SPS: pic_order_cnt_type");
if (pic_order_cnt_type == 0)
{
CAVLCWriter.writeUE(writer, log2_max_pic_order_cnt_lsb_minus4, "SPS: log2_max_pic_order_cnt_lsb_minus4");
}
else if (pic_order_cnt_type == 1)
{
CAVLCWriter.writeBool(writer, delta_pic_order_always_zero_flag, "SPS: delta_pic_order_always_zero_flag");
CAVLCWriter.writeSE(writer, offset_for_non_ref_pic, "SPS: offset_for_non_ref_pic");
CAVLCWriter.writeSE(writer, offset_for_top_to_bottom_field, "SPS: offset_for_top_to_bottom_field");
CAVLCWriter.writeUE(writer, offsetForRefFrame.Length, "SPS: ");
for (int i = 0; i < offsetForRefFrame.Length; i++)
{
CAVLCWriter.writeSE(writer, offsetForRefFrame[i], "SPS: ");
}
}
CAVLCWriter.writeUE(writer, num_ref_frames, "SPS: num_ref_frames");
CAVLCWriter.writeBool(writer, gaps_in_frame_num_value_allowed_flag, "SPS: gaps_in_frame_num_value_allowed_flag");
CAVLCWriter.writeUE(writer, pic_width_in_mbs_minus1, "SPS: pic_width_in_mbs_minus1");
CAVLCWriter.writeUE(writer, pic_height_in_map_units_minus1, "SPS: pic_height_in_map_units_minus1");
CAVLCWriter.writeBool(writer, frame_mbs_only_flag, "SPS: frame_mbs_only_flag");
if (!frame_mbs_only_flag)
{
CAVLCWriter.writeBool(writer, mb_adaptive_frame_field_flag, "SPS: mb_adaptive_frame_field_flag");
}
CAVLCWriter.writeBool(writer, direct_8x8_inference_flag, "SPS: direct_8x8_inference_flag");
CAVLCWriter.writeBool(writer, frame_cropping_flag, "SPS: frame_cropping_flag");
if (frame_cropping_flag)
{
CAVLCWriter.writeUE(writer, frame_crop_left_offset, "SPS: frame_crop_left_offset");
CAVLCWriter.writeUE(writer, frame_crop_right_offset, "SPS: frame_crop_right_offset");
CAVLCWriter.writeUE(writer, frame_crop_top_offset, "SPS: frame_crop_top_offset");
CAVLCWriter.writeUE(writer, frame_crop_bottom_offset, "SPS: frame_crop_bottom_offset");
}
CAVLCWriter.writeBool(writer, vuiParams != null, "SPS: ");
if (vuiParams != null)
{
writeVUIParameters(vuiParams, writer);
}
CAVLCWriter.writeTrailingBits(writer);
}
public void write(MemoryStream outb)
{
BitWriter writer = new BitWriter(outb);
CAVLCWriter.writeUE(writer, pic_parameter_set_id, "PPS: pic_parameter_set_id");
CAVLCWriter.writeUE(writer, seq_parameter_set_id, "PPS: seq_parameter_set_id");
CAVLCWriter.writeBool(writer, entropy_coding_mode_flag, "PPS: entropy_coding_mode_flag");
CAVLCWriter.writeBool(writer, pic_order_present_flag, "PPS: pic_order_present_flag");
CAVLCWriter.writeUE(writer, num_slice_groups_minus1, "PPS: num_slice_groups_minus1");
if (num_slice_groups_minus1 > 0)
{
CAVLCWriter.writeUE(writer, slice_group_map_type, "PPS: slice_group_map_type");
int[] top_left = new int[1];
int[] bottom_right = new int[1];
int[] run_length_minus1 = new int[1];
if (slice_group_map_type == 0)
{
for (int iGroup = 0; iGroup <= num_slice_groups_minus1; iGroup++)
{
CAVLCWriter.writeUE(writer, run_length_minus1[iGroup], "PPS: ");
}
}
else if (slice_group_map_type == 2)
{
for (int iGroup = 0; iGroup < num_slice_groups_minus1; iGroup++)
{
CAVLCWriter.writeUE(writer, top_left[iGroup], "PPS: ");
CAVLCWriter.writeUE(writer, bottom_right[iGroup], "PPS: ");
}
}
else if (slice_group_map_type == 3 || slice_group_map_type == 4 || slice_group_map_type == 5)
{
CAVLCWriter.writeBool(writer, slice_group_change_direction_flag, "PPS: slice_group_change_direction_flag");
CAVLCWriter.writeUE(writer, slice_group_change_rate_minus1, "PPS: slice_group_change_rate_minus1");
}
else if (slice_group_map_type == 6)
{
int NumberBitsPerSliceGroupId;
if (num_slice_groups_minus1 + 1 > 4)
{
NumberBitsPerSliceGroupId = 3;
}
else if (num_slice_groups_minus1 + 1 > 2)
{
NumberBitsPerSliceGroupId = 2;
}
else
{
NumberBitsPerSliceGroupId = 1;
}
CAVLCWriter.writeUE(writer, slice_group_id.Length, "PPS: ");
for (int i = 0; i <= slice_group_id.Length; i++)
{
CAVLCWriter.writeU(writer, slice_group_id[i], NumberBitsPerSliceGroupId);
}
}
}
CAVLCWriter.writeUE(writer, num_ref_idx_active_minus1[0], "PPS: num_ref_idx_l0_active_minus1");
CAVLCWriter.writeUE(writer, num_ref_idx_active_minus1[1], "PPS: num_ref_idx_l1_active_minus1");
CAVLCWriter.writeBool(writer, weighted_pred_flag, "PPS: weighted_pred_flag");
CAVLCWriter.writeNBit(writer, weighted_bipred_idc, 2, "PPS: weighted_bipred_idc");
CAVLCWriter.writeSE(writer, pic_init_qp_minus26, "PPS: pic_init_qp_minus26");
CAVLCWriter.writeSE(writer, pic_init_qs_minus26, "PPS: pic_init_qs_minus26");
CAVLCWriter.writeSE(writer, chroma_qp_index_offset, "PPS: chroma_qp_index_offset");
CAVLCWriter.writeBool(writer, deblocking_filter_control_present_flag, "PPS: deblocking_filter_control_present_flag");
CAVLCWriter.writeBool(writer, constrained_intra_pred_flag, "PPS: constrained_intra_pred_flag");
CAVLCWriter.writeBool(writer, redundant_pic_cnt_present_flag, "PPS: redundant_pic_cnt_present_flag");
if (extended != null)
{
CAVLCWriter.writeBool(writer, extended.transform_8x8_mode_flag, "PPS: transform_8x8_mode_flag");
CAVLCWriter.writeBool(writer, extended.scalindMatrix != null, "PPS: scalindMatrix");
if (extended.scalindMatrix != null)
{
for (int i = 0; i < 6 + 2 * (extended.transform_8x8_mode_flag ? 1 : 0); i++)
{
if (i < 6)
{
CAVLCWriter.writeBool(writer, extended.scalindMatrix.ScalingList4x4[i] != null, "PPS: ");
if (extended.scalindMatrix.ScalingList4x4[i] != null)
{
extended.scalindMatrix.ScalingList4x4[i].write(writer);
}
}
else
{
CAVLCWriter.writeBool(writer, extended.scalindMatrix.ScalingList8x8[i - 6] != null, "PPS: ");
if (extended.scalindMatrix.ScalingList8x8[i - 6] != null)
{
extended.scalindMatrix.ScalingList8x8[i - 6].write(writer);
}
}
}
}
CAVLCWriter.writeSE(writer, extended.second_chroma_qp_index_offset, "PPS: ");
}
CAVLCWriter.writeTrailingBits(writer);
}
public void write(SliceHeader sliceHeader, bool idrSlice, int nalRefIdc, BitWriter writer)
{
SeqParameterSet sps = sliceHeader.sps;
PictureParameterSet pps = sliceHeader.pps;
CAVLCWriter.writeUE(writer, sliceHeader.first_mb_in_slice, "SH: first_mb_in_slice");
CAVLCWriter.writeUE(writer, (int)sliceHeader.slice_type + (sliceHeader.slice_type_restr ? 5 : 0), "SH: slice_type");
CAVLCWriter.writeUE(writer, sliceHeader.pic_parameter_set_id, "SH: pic_parameter_set_id");
CAVLCWriter.writeU(writer, sliceHeader.frame_num, sps.log2_max_frame_num_minus4 + 4, "SH: frame_num");
if (!sps.frame_mbs_only_flag)
{
CAVLCWriter.writeBool(writer, sliceHeader.field_pic_flag, "SH: field_pic_flag");
if (sliceHeader.field_pic_flag)
{
CAVLCWriter.writeBool(writer, sliceHeader.bottom_field_flag, "SH: bottom_field_flag");
}
}
if (idrSlice)
{
CAVLCWriter.writeUE(writer, sliceHeader.idr_pic_id, "SH: idr_pic_id");
}
if (sps.pic_order_cnt_type == 0)
{
CAVLCWriter.writeU(writer, sliceHeader.pic_order_cnt_lsb, sps.log2_max_pic_order_cnt_lsb_minus4 + 4);
if (pps.pic_order_present_flag && !sps.field_pic_flag)
{
CAVLCWriter.writeSE(writer, sliceHeader.delta_pic_order_cnt_bottom, "SH: delta_pic_order_cnt_bottom");
}
}
if (sps.pic_order_cnt_type == 1 && !sps.delta_pic_order_always_zero_flag)
{
CAVLCWriter.writeSE(writer, sliceHeader.delta_pic_order_cnt[0], "SH: delta_pic_order_cnt");
if (pps.pic_order_present_flag && !sps.field_pic_flag)
{
CAVLCWriter.writeSE(writer, sliceHeader.delta_pic_order_cnt[1], "SH: delta_pic_order_cnt");
}
}
if (pps.redundant_pic_cnt_present_flag)
{
CAVLCWriter.writeUE(writer, sliceHeader.redundant_pic_cnt, "SH: redundant_pic_cnt");
}
if (sliceHeader.slice_type == SliceType.B)
{
CAVLCWriter.writeBool(writer, sliceHeader.direct_spatial_mv_pred_flag, "SH: direct_spatial_mv_pred_flag");
}
if (sliceHeader.slice_type == SliceType.P || sliceHeader.slice_type == SliceType.SP ||
sliceHeader.slice_type == SliceType.B)
{
CAVLCWriter.writeBool(writer, sliceHeader.num_ref_idx_active_override_flag, "SH: num_ref_idx_active_override_flag");
if (sliceHeader.num_ref_idx_active_override_flag)
{
CAVLCWriter.writeUE(writer, sliceHeader.num_ref_idx_active_minus1[0], "SH: num_ref_idx_l0_active_minus1");
if (sliceHeader.slice_type == SliceType.B)
{
CAVLCWriter.writeUE(writer, sliceHeader.num_ref_idx_active_minus1[1], "SH: num_ref_idx_l1_active_minus1");
}
}
}
writeRefPicListReordering(sliceHeader, writer);
if ((pps.weighted_pred_flag && (sliceHeader.slice_type == SliceType.P || sliceHeader.slice_type == SliceType.SP)) ||
(pps.weighted_bipred_idc == 1 && sliceHeader.slice_type == SliceType.B))
{
writePredWeightTable(sliceHeader, writer);
}
if (nalRefIdc != 0)
{
writeDecRefPicMarking(sliceHeader, idrSlice, writer);
}
if (pps.entropy_coding_mode_flag && sliceHeader.slice_type.isInter())
{
CAVLCWriter.writeUE(writer, sliceHeader.cabac_init_idc, "SH: cabac_init_idc");
}
CAVLCWriter.writeSE(writer, sliceHeader.slice_qp_delta, "SH: slice_qp_delta");
if (sliceHeader.slice_type == SliceType.SP || sliceHeader.slice_type == SliceType.SI)
{
if (sliceHeader.slice_type == SliceType.SP)
{
CAVLCWriter.writeBool(writer, sliceHeader.sp_for_switch_flag, "SH: sp_for_switch_flag");
}
CAVLCWriter.writeSE(writer, sliceHeader.slice_qs_delta, "SH: slice_qs_delta");
}
if (pps.deblocking_filter_control_present_flag)
{
CAVLCWriter.writeUE(writer, sliceHeader.disable_deblocking_filter_idc, "SH: disable_deblocking_filter_idc");
if (sliceHeader.disable_deblocking_filter_idc != 1)
{
CAVLCWriter.writeSE(writer, sliceHeader.slice_alpha_c0_offset_div2, "SH: slice_alpha_c0_offset_div2");
CAVLCWriter.writeSE(writer, sliceHeader.slice_beta_offset_div2, "SH: slice_beta_offset_div2");
}
}
if (pps.num_slice_groups_minus1 > 0 && pps.slice_group_map_type >= 3 && pps.slice_group_map_type <= 5)
{
int len = (sps.pic_height_in_map_units_minus1 + 1) * (sps.pic_width_in_mbs_minus1 + 1)
/ (pps.slice_group_change_rate_minus1 + 1);
if (((sps.pic_height_in_map_units_minus1 + 1) * (sps.pic_width_in_mbs_minus1 + 1))
% (pps.slice_group_change_rate_minus1 + 1) > 0)
{
len += 1;
}
len = CeilLog2(len + 1);
CAVLCWriter.writeU(writer, sliceHeader.slice_group_change_cycle, len);
}
}