com.googlecode.mp4parser.authoring.tracks.h265.VideoParameterSet Maven / Gradle / Ivy
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A generic parser and writer for all ISO 14496 based files (MP4, Quicktime, DCF, PDCF, ...)
package com.googlecode.mp4parser.authoring.tracks.h265;
import com.googlecode.mp4parser.h264.read.CAVLCReader;
import com.googlecode.mp4parser.util.ByteBufferByteChannel;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.Channels;
public class VideoParameterSet {
ByteBuffer vps;
int vps_parameter_set_id;
public VideoParameterSet(ByteBuffer vps) throws IOException {
this.vps = vps;
CAVLCReader r = new CAVLCReader(Channels.newInputStream(new ByteBufferByteChannel((ByteBuffer) vps.position(0))));
vps_parameter_set_id = r.readU(4, "vps_parameter_set_id");
int vps_reserved_three_2bits = r.readU(2, "vps_reserved_three_2bits");
int vps_max_layers_minus1 = r.readU(6, "vps_max_layers_minus1");
int vps_max_sub_layers_minus1 = r.readU(3, "vps_max_sub_layers_minus1");
boolean vps_temporal_id_nesting_flag = r.readBool("vps_temporal_id_nesting_flag");
int vps_reserved_0xffff_16bits = r.readU(16, "vps_reserved_0xffff_16bits");
profile_tier_level(vps_max_sub_layers_minus1, r);
boolean vps_sub_layer_ordering_info_present_flag = r.readBool("vps_sub_layer_ordering_info_present_flag");
int[] vps_max_dec_pic_buffering_minus1 = new int[vps_sub_layer_ordering_info_present_flag ? 1 : vps_max_sub_layers_minus1 + 1];
int[] vps_max_num_reorder_pics = new int[vps_sub_layer_ordering_info_present_flag ? 1 : vps_max_sub_layers_minus1 + 1];
int[] vps_max_latency_increase_plus1 = new int[vps_sub_layer_ordering_info_present_flag ? 1 : vps_max_sub_layers_minus1 + 1];
for (int i = (vps_sub_layer_ordering_info_present_flag ? 0 : vps_max_sub_layers_minus1); i <= vps_max_sub_layers_minus1; i++) {
vps_max_dec_pic_buffering_minus1[i] = r.readUE("vps_max_dec_pic_buffering_minus1[" + i + "]");
vps_max_num_reorder_pics[i] = r.readUE("vps_max_dec_pic_buffering_minus1[" + i + "]");
vps_max_latency_increase_plus1[i] = r.readUE("vps_max_dec_pic_buffering_minus1[" + i + "]");
}
int vps_max_layer_id = r.readU(6, "vps_max_layer_id");
int vps_num_layer_sets_minus1 = r.readUE("vps_num_layer_sets_minus1");
boolean[][] layer_id_included_flag = new boolean[vps_num_layer_sets_minus1][vps_max_layer_id];
for (int i = 1; i <= vps_num_layer_sets_minus1; i++) {
for (int j = 0; j <= vps_max_layer_id; j++) {
layer_id_included_flag[i][j] = r.readBool("layer_id_included_flag[" + i + "][" + j + "]");
}
}
boolean vps_timing_info_present_flag = r.readBool("vps_timing_info_present_flag");
if (vps_timing_info_present_flag) {
long vps_num_units_in_tick = r.readU(32, "vps_num_units_in_tick");
long vps_time_scale = r.readU(32, "vps_time_scale");
boolean vps_poc_proportional_to_timing_flag = r.readBool("vps_poc_proportional_to_timing_flag");
if (vps_poc_proportional_to_timing_flag) {
int vps_num_ticks_poc_diff_one_minus1 = r.readUE("vps_num_ticks_poc_diff_one_minus1");
}
int vps_num_hrd_parameters = r.readUE("vps_num_hrd_parameters");
int hrd_layer_set_idx[] = new int[vps_num_hrd_parameters];
boolean cprms_present_flag[] = new boolean[vps_num_hrd_parameters];
for (int i = 0; i < vps_num_hrd_parameters; i++) {
hrd_layer_set_idx[i] = r.readUE("hrd_layer_set_idx[" + i + "]");
if (i > 0) {
cprms_present_flag[i] = r.readBool("cprms_present_flag[" + i + "]");
} else {
cprms_present_flag[0] = true;
}
hrd_parameters(cprms_present_flag[i], vps_max_sub_layers_minus1, r);
}
}
boolean vps_extension_flag = r.readBool("vps_extension_flag");
if (vps_extension_flag) {
while (r.moreRBSPData()) {
boolean vps_extension_data_flag = r.readBool("vps_extension_data_flag");
}
}
r.readTrailingBits();
}
public void profile_tier_level(int maxNumSubLayersMinus1, CAVLCReader r) throws IOException {
int general_profile_space = r.readU(2, "general_profile_space ");
boolean general_tier_flag = r.readBool("general_tier_flag");
int general_profile_idc = r.readU(5, "general_profile_idc");
boolean[] general_profile_compatibility_flag = new boolean[32];
for (int j = 0; j < 32; j++) {
general_profile_compatibility_flag[j] = r.readBool("general_profile_compatibility_flag[" + j + "]");
}
boolean general_progressive_source_flag = r.readBool("general_progressive_source_flag");
boolean general_interlaced_source_flag = r.readBool("general_interlaced_source_flag");
boolean general_non_packed_constraint_flag = r.readBool("general_non_packed_constraint_flag");
boolean general_frame_only_constraint_flag = r.readBool("general_frame_only_constraint_flag");
long general_reserved_zero_44bits = r.readU(44, "general_reserved_zero_44bits");
int general_level_idc = r.readU(8, "general_level_idc");
boolean[] sub_layer_profile_present_flag = new boolean[maxNumSubLayersMinus1];
boolean[] sub_layer_level_present_flag = new boolean[maxNumSubLayersMinus1];
for (int i = 0; i < maxNumSubLayersMinus1; i++) {
sub_layer_profile_present_flag[i] = r.readBool("sub_layer_profile_present_flag[" + i + "]");
sub_layer_level_present_flag[i] = r.readBool("sub_layer_level_present_flag[" + i + "]");
}
if (maxNumSubLayersMinus1 > 0) {
for (int i = maxNumSubLayersMinus1; i < 8; i++) {
r.readU(2, "reserved_zero_2bits");
}
}
int[] sub_layer_profile_space = new int[maxNumSubLayersMinus1];
boolean[] sub_layer_tier_flag = new boolean[maxNumSubLayersMinus1];
int[] sub_layer_profile_idc = new int[maxNumSubLayersMinus1];
boolean[][] sub_layer_profile_compatibility_flag = new boolean[maxNumSubLayersMinus1][32];
boolean[] sub_layer_progressive_source_flag = new boolean[maxNumSubLayersMinus1];
boolean[] sub_layer_interlaced_source_flag = new boolean[maxNumSubLayersMinus1];
boolean[] sub_layer_non_packed_constraint_flag = new boolean[maxNumSubLayersMinus1];
boolean[] sub_layer_frame_only_constraint_flag = new boolean[maxNumSubLayersMinus1];
int[] sub_layer_level_idc = new int[maxNumSubLayersMinus1];
for (int i = 0; i < maxNumSubLayersMinus1; i++) {
if (sub_layer_profile_present_flag[i]) {
sub_layer_profile_space[i] = r.readU(2, "sub_layer_profile_space[" + i + "]");
sub_layer_tier_flag[i] = r.readBool("sub_layer_tier_flag[" + i + "]");
sub_layer_profile_idc[i] = r.readU(5, "sub_layer_profile_idc[" + i + "]");
for (int j = 0; j < 32; j++) {
sub_layer_profile_compatibility_flag[i][j] = r.readBool("sub_layer_profile_compatibility_flag[" + i + "][" + j + "]");
}
sub_layer_progressive_source_flag[i] = r.readBool("sub_layer_progressive_source_flag[" + i + "]");
sub_layer_interlaced_source_flag[i] = r.readBool("sub_layer_interlaced_source_flag[" + i + "]");
sub_layer_non_packed_constraint_flag[i] = r.readBool("sub_layer_non_packed_constraint_flag[" + i + "]");
sub_layer_frame_only_constraint_flag[i] = r.readBool("sub_layer_frame_only_constraint_flag[" + i + "]");
r.readNBit(44, "reserved");
}
if (sub_layer_level_present_flag[i])
sub_layer_level_idc[i] = r.readU(8, "sub_layer_level_idc");
}
}
private void hrd_parameters(boolean commonInfPresentFlag, int maxNumSubLayersMinus1, CAVLCReader r) throws IOException {
boolean nal_hrd_parameters_present_flag = false;
boolean vcl_hrd_parameters_present_flag = false;
boolean sub_pic_hrd_params_present_flag = false;
if (commonInfPresentFlag) {
nal_hrd_parameters_present_flag = r.readBool("nal_hrd_parameters_present_flag");
vcl_hrd_parameters_present_flag = r.readBool("vcl_hrd_parameters_present_flag");
if (nal_hrd_parameters_present_flag || vcl_hrd_parameters_present_flag) {
sub_pic_hrd_params_present_flag = r.readBool("sub_pic_hrd_params_present_flag");
if (sub_pic_hrd_params_present_flag) {
int tick_divisor_minus2 = r.readU(8, "tick_divisor_minus2");
int du_cpb_removal_delay_increment_length_minus1 = r.readU(5, "du_cpb_removal_delay_increment_length_minus1");
boolean sub_pic_cpb_params_in_pic_timing_sei_flag = r.readBool("sub_pic_cpb_params_in_pic_timing_sei_flag");
int dpb_output_delay_du_length_minus1 = r.readU(5, "dpb_output_delay_du_length_minus1");
}
int bit_rate_scale = r.readU(4, "bit_rate_scale");
int cpb_size_scale = r.readU(4, "cpb_size_scale");
if (sub_pic_hrd_params_present_flag) {
int cpb_size_du_scale = r.readU(4, "cpb_size_du_scale");
}
int initial_cpb_removal_delay_length_minus1 = r.readU(5, "initial_cpb_removal_delay_length_minus1");
int au_cpb_removal_delay_length_minus1 = r.readU(5, "au_cpb_removal_delay_length_minus1");
int dpb_output_delay_length_minus1 = r.readU(5, "dpb_output_delay_length_minus1");
}
}
boolean fixed_pic_rate_general_flag[] = new boolean[maxNumSubLayersMinus1];
boolean fixed_pic_rate_within_cvs_flag[] = new boolean[maxNumSubLayersMinus1];
boolean low_delay_hrd_flag[] = new boolean[maxNumSubLayersMinus1];
int cpb_cnt_minus1[] = new int[maxNumSubLayersMinus1];
int elemental_duration_in_tc_minus1[] = new int[maxNumSubLayersMinus1];
for (int i = 0; i <= maxNumSubLayersMinus1; i++) {
fixed_pic_rate_general_flag[i] = r.readBool("fixed_pic_rate_general_flag[" + i + "]");
if (!fixed_pic_rate_general_flag[i]) {
fixed_pic_rate_within_cvs_flag[i] = r.readBool("fixed_pic_rate_within_cvs_flag[" + i + "]");
}
if (fixed_pic_rate_within_cvs_flag[i]) {
elemental_duration_in_tc_minus1[i] = r.readUE("elemental_duration_in_tc_minus1[" + i + "]");
} else {
low_delay_hrd_flag[i] = r.readBool("low_delay_hrd_flag[" + i + "]");
}
if (!low_delay_hrd_flag[i]) {
cpb_cnt_minus1[i] = r.readUE("cpb_cnt_minus1[" + i + "]");
}
if (nal_hrd_parameters_present_flag) {
sub_layer_hrd_parameters(i, cpb_cnt_minus1[i], sub_pic_hrd_params_present_flag, r);
}
if (vcl_hrd_parameters_present_flag) {
sub_layer_hrd_parameters(i, cpb_cnt_minus1[i], sub_pic_hrd_params_present_flag, r);
}
}
}
void sub_layer_hrd_parameters(int subLayerId, int cpbCnt, boolean sub_pic_hrd_params_present_flag, CAVLCReader r) throws IOException {
int bit_rate_value_minus1[] = new int[cpbCnt];
int cpb_size_value_minus1[] = new int[cpbCnt];
int cpb_size_du_value_minus1[] = new int[cpbCnt];
int bit_rate_du_value_minus1[] = new int[cpbCnt];
boolean cbr_flag[] = new boolean[cpbCnt];
for (int i = 0; i <= cpbCnt; i++) {
bit_rate_value_minus1[i] = r.readUE("bit_rate_value_minus1[" + i + "]");
cpb_size_value_minus1[i] = r.readUE("cpb_size_value_minus1[" + i + "]");
if (sub_pic_hrd_params_present_flag) {
cpb_size_du_value_minus1[i] = r.readUE("cpb_size_du_value_minus1[" + i + "]");
bit_rate_du_value_minus1[i] = r.readUE("bit_rate_du_value_minus1[" + i + "]");
}
cbr_flag[i] = r.readBool("cbr_flag[" + i + "]");
}
}
public ByteBuffer toByteBuffer() {
return vps;
}
}
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