private void writeVUIParameters(VUIParameters vuip, BitWriter writer)
{
CAVLCWriter.writeBool(writer, vuip.aspect_ratio_info_present_flag, "VUI: aspect_ratio_info_present_flag");
if (vuip.aspect_ratio_info_present_flag)
{
CAVLCWriter.writeNBit(writer, vuip.aspect_ratio.getValue(), 8, "VUI: aspect_ratio");
if (vuip.aspect_ratio == AspectRatio.Extended_SAR)
{
CAVLCWriter.writeNBit(writer, vuip.sar_width, 16, "VUI: sar_width");
CAVLCWriter.writeNBit(writer, vuip.sar_height, 16, "VUI: sar_height");
}
}
CAVLCWriter.writeBool(writer, vuip.overscan_info_present_flag, "VUI: overscan_info_present_flag");
if (vuip.overscan_info_present_flag)
{
CAVLCWriter.writeBool(writer, vuip.overscan_appropriate_flag, "VUI: overscan_appropriate_flag");
}
CAVLCWriter.writeBool(writer, vuip.video_signal_type_present_flag, "VUI: video_signal_type_present_flag");
if (vuip.video_signal_type_present_flag)
{
CAVLCWriter.writeNBit(writer, vuip.video_format, 3, "VUI: video_format");
CAVLCWriter.writeBool(writer, vuip.video_full_range_flag, "VUI: video_full_range_flag");
CAVLCWriter.writeBool(writer, vuip.colour_description_present_flag, "VUI: colour_description_present_flag");
if (vuip.colour_description_present_flag)
{
CAVLCWriter.writeNBit(writer, vuip.colour_primaries, 8, "VUI: colour_primaries");
CAVLCWriter.writeNBit(writer, vuip.transfer_characteristics, 8, "VUI: transfer_characteristics");
CAVLCWriter.writeNBit(writer, vuip.matrix_coefficients, 8, "VUI: matrix_coefficients");
}
}
CAVLCWriter.writeBool(writer, vuip.chroma_loc_info_present_flag, "VUI: chroma_loc_info_present_flag");
if (vuip.chroma_loc_info_present_flag)
{
CAVLCWriter.writeUE(writer, vuip.chroma_sample_loc_type_top_field, "VUI: chroma_sample_loc_type_top_field");
CAVLCWriter.writeUE(writer, vuip.chroma_sample_loc_type_bottom_field, "VUI: chroma_sample_loc_type_bottom_field");
}
CAVLCWriter.writeBool(writer, vuip.timing_info_present_flag, "VUI: timing_info_present_flag");
if (vuip.timing_info_present_flag)
{
CAVLCWriter.writeNBit(writer, vuip.num_units_in_tick, 32, "VUI: num_units_in_tick");
CAVLCWriter.writeNBit(writer, vuip.time_scale, 32, "VUI: time_scale");
CAVLCWriter.writeBool(writer, vuip.fixed_frame_rate_flag, "VUI: fixed_frame_rate_flag");
}
CAVLCWriter.writeBool(writer, vuip.nalHRDParams != null, "VUI: ");
if (vuip.nalHRDParams != null)
{
writeHRDParameters(vuip.nalHRDParams, writer);
}
CAVLCWriter.writeBool(writer, vuip.vclHRDParams != null, "VUI: ");
if (vuip.vclHRDParams != null)
{
writeHRDParameters(vuip.vclHRDParams, writer);
}
if (vuip.nalHRDParams != null || vuip.vclHRDParams != null)
{
CAVLCWriter.writeBool(writer, vuip.low_delay_hrd_flag, "VUI: low_delay_hrd_flag");
}
CAVLCWriter.writeBool(writer, vuip.pic_struct_present_flag, "VUI: pic_struct_present_flag");
CAVLCWriter.writeBool(writer, vuip.bitstreamRestriction != null, "VUI: ");
if (vuip.bitstreamRestriction != null)
{
CAVLCWriter.writeBool(writer, vuip.bitstreamRestriction.motion_vectors_over_pic_boundaries_flag,
"VUI: motion_vectors_over_pic_boundaries_flag");
CAVLCWriter.writeUE(writer, vuip.bitstreamRestriction.max_bytes_per_pic_denom, "VUI: max_bytes_per_pic_denom");
CAVLCWriter.writeUE(writer, vuip.bitstreamRestriction.max_bits_per_mb_denom, "VUI: max_bits_per_mb_denom");
CAVLCWriter.writeUE(writer, vuip.bitstreamRestriction.log2_max_mv_length_horizontal,
"VUI: log2_max_mv_length_horizontal");
CAVLCWriter.writeUE(writer, vuip.bitstreamRestriction.log2_max_mv_length_vertical, "VUI: log2_max_mv_length_vertical");
CAVLCWriter.writeUE(writer, vuip.bitstreamRestriction.num_reorder_frames, "VUI: num_reorder_frames");
CAVLCWriter.writeUE(writer, vuip.bitstreamRestriction.max_dec_frame_buffering, "VUI: max_dec_frame_buffering");
}
}
private static VUIParameters readVUIParameters(BitReader inb)
{
VUIParameters vuip = new VUIParameters();
vuip.aspect_ratio_info_present_flag = CAVLCReader.readBool(inb, "VUI: aspect_ratio_info_present_flag");
if (vuip.aspect_ratio_info_present_flag)
{
vuip.aspect_ratio = AspectRatio.fromValue((int)CAVLCReader.readNBit(inb, 8, "VUI: aspect_ratio"));
if (vuip.aspect_ratio == AspectRatio.Extended_SAR)
{
vuip.sar_width = (int)CAVLCReader.readNBit(inb, 16, "VUI: sar_width");
vuip.sar_height = (int)CAVLCReader.readNBit(inb, 16, "VUI: sar_height");
}
}
vuip.overscan_info_present_flag = CAVLCReader.readBool(inb, "VUI: overscan_info_present_flag");
if (vuip.overscan_info_present_flag)
{
vuip.overscan_appropriate_flag = CAVLCReader.readBool(inb, "VUI: overscan_appropriate_flag");
}
vuip.video_signal_type_present_flag = CAVLCReader.readBool(inb, "VUI: video_signal_type_present_flag");
if (vuip.video_signal_type_present_flag)
{
vuip.video_format = (int)CAVLCReader.readNBit(inb, 3, "VUI: video_format");
vuip.video_full_range_flag = CAVLCReader.readBool(inb, "VUI: video_full_range_flag");
vuip.colour_description_present_flag = CAVLCReader.readBool(inb, "VUI: colour_description_present_flag");
if (vuip.colour_description_present_flag)
{
vuip.colour_primaries = (int)CAVLCReader.readNBit(inb, 8, "VUI: colour_primaries");
vuip.transfer_characteristics = (int)CAVLCReader.readNBit(inb, 8, "VUI: transfer_characteristics");
vuip.matrix_coefficients = (int)CAVLCReader.readNBit(inb, 8, "VUI: matrix_coefficients");
}
}
vuip.chroma_loc_info_present_flag = CAVLCReader.readBool(inb, "VUI: chroma_loc_info_present_flag");
if (vuip.chroma_loc_info_present_flag)
{
vuip.chroma_sample_loc_type_top_field = CAVLCReader.readUE(inb, "VUI chroma_sample_loc_type_top_field");
vuip.chroma_sample_loc_type_bottom_field = CAVLCReader.readUE(inb, "VUI chroma_sample_loc_type_bottom_field");
}
vuip.timing_info_present_flag = CAVLCReader.readBool(inb, "VUI: timing_info_present_flag");
if (vuip.timing_info_present_flag)
{
vuip.num_units_in_tick = (int)CAVLCReader.readNBit(inb, 32, "VUI: num_units_in_tick");
vuip.time_scale = (int)CAVLCReader.readNBit(inb, 32, "VUI: time_scale");
vuip.fixed_frame_rate_flag = CAVLCReader.readBool(inb, "VUI: fixed_frame_rate_flag");
}
bool nal_hrd_parameters_present_flag = CAVLCReader.readBool(inb, "VUI: nal_hrd_parameters_present_flag");
if (nal_hrd_parameters_present_flag)
{
vuip.nalHRDParams = readHRDParameters(inb);
}
bool vcl_hrd_parameters_present_flag = CAVLCReader.readBool(inb, "VUI: vcl_hrd_parameters_present_flag");
if (vcl_hrd_parameters_present_flag)
{
vuip.vclHRDParams = readHRDParameters(inb);
}
if (nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag)
{
vuip.low_delay_hrd_flag = CAVLCReader.readBool(inb, "VUI: low_delay_hrd_flag");
}
vuip.pic_struct_present_flag = CAVLCReader.readBool(inb, "VUI: pic_struct_present_flag");
bool bitstream_restriction_flag = CAVLCReader.readBool(inb, "VUI: bitstream_restriction_flag");
if (bitstream_restriction_flag)
{
vuip.bitstreamRestriction = new VUIParameters.BitstreamRestriction();
vuip.bitstreamRestriction.motion_vectors_over_pic_boundaries_flag = CAVLCReader.readBool(inb,
"VUI: motion_vectors_over_pic_boundaries_flag");
vuip.bitstreamRestriction.max_bytes_per_pic_denom = CAVLCReader.readUE(inb, "VUI max_bytes_per_pic_denom");
vuip.bitstreamRestriction.max_bits_per_mb_denom = CAVLCReader.readUE(inb, "VUI max_bits_per_mb_denom");
vuip.bitstreamRestriction.log2_max_mv_length_horizontal = CAVLCReader.readUE(inb, "VUI log2_max_mv_length_horizontal");
vuip.bitstreamRestriction.log2_max_mv_length_vertical = CAVLCReader.readUE(inb, "VUI log2_max_mv_length_vertical");
vuip.bitstreamRestriction.num_reorder_frames = CAVLCReader.readUE(inb, "VUI num_reorder_frames");
vuip.bitstreamRestriction.max_dec_frame_buffering = CAVLCReader.readUE(inb, "VUI max_dec_frame_buffering");
}
return(vuip);
}