#include "h265.h"
#include "bitfields.h"
#include "defines.h"
namespace h265{
const char *typeToStr(uint8_t type){
switch (type){
case 0:
case 1: return "Trailing slice";
case 2:
case 3: return "TSA slice";
case 4:
case 5: return "STSA slice";
case 6:
case 7: return "Decodable leading slice";
case 8:
case 9: return "Skipped leading slice";
case 16:
case 17:
case 18: return "BLA slice";
case 19:
case 20: return "IDR (keyframe) slice";
case 21: return "CRA slice";
case 32: return "VPS";
case 33: return "SPS";
case 34: return "PPS";
case 35: return "Access unit delimiter";
case 36: return "End of sequence";
case 37: return "End of bitstream";
case 38: return "Filler data";
case 39:
case 40: return "SEI";
case 48: return "RTP Aggregation Packet";
case 49: return "RTP Fragmentation Unit";
case 50: return "RTP PAyload Content Information (PACI)";
default: return "UNKNOWN";
}
}
bool isKeyframe(const char *data, uint32_t len){
if (!len){return false;}
uint8_t nalType = (data[0] & 0x7E) >> 1;
return (nalType >= 16 && nalType <= 21);
}
std::deque<nalu::nalData> analysePackets(const char *data, unsigned long len){
std::deque<nalu::nalData> res;
int offset = 0;
while (offset < len){
nalu::nalData entry;
entry.nalSize = Bit::btohl(data + offset);
entry.nalType = ((data + offset)[4] & 0x7E) >> 1;
res.push_back(entry);
offset += entry.nalSize + 4;
}
return res;
}
initData::initData(){}
initData::initData(const std::string &hvccData){
MP4::HVCC hvccBox;
hvccBox.setPayload(hvccData);
std::deque<MP4::HVCCArrayEntry> arrays = hvccBox.getArrays();
for (std::deque<MP4::HVCCArrayEntry>::iterator it = arrays.begin(); it != arrays.end(); it++){
for (std::deque<std::string>::iterator nalIt = it->nalUnits.begin();
nalIt != it->nalUnits.end(); nalIt++){
nalUnits[it->nalUnitType].insert(*nalIt);
}
}
}
const std::set<std::string> &initData::getVPS() const{
static std::set<std::string> empty;
if (!nalUnits.count(32)){return empty;}
return nalUnits.at(32);
}
const std::set<std::string> &initData::getSPS() const{
static std::set<std::string> empty;
if (!nalUnits.count(33)){return empty;}
return nalUnits.at(33);
}
const std::set<std::string> &initData::getPPS() const{
static std::set<std::string> empty;
if (!nalUnits.count(34)){return empty;}
return nalUnits.at(34);
}
void initData::addUnit(const char *data){
unsigned long nalSize = Bit::btohl(data);
unsigned long nalType = (data[4] & 0x7E) >> 1;
switch (nalType){
case 32: // vps
case 33: // sps
case 34: // pps
nalUnits[nalType].insert(std::string(data + 4, nalSize));
}
}
void initData::addUnit(const std::string &data){
if (data.size() <= 1){return;}
uint8_t nalType = (data[0] & 0x7E) >> 1;
switch (nalType){
case 32: // vps
case 33: // sps
case 34: // pps
nalUnits[nalType].insert(data);
}
INFO_MSG("added nal of type %" PRIu8, nalType);
if (nalType == 32){
vpsUnit vps(data);
std::cout << vps.toPrettyString(0);
}
}
bool initData::haveRequired(){
return (nalUnits.count(32) && nalUnits.count(33) && nalUnits.count(34));
}
std::string initData::generateHVCC(){
MP4::HVCC hvccBox;
hvccBox.setConfigurationVersion(1);
hvccBox.setParallelismType(0);
std::set<std::string>::iterator nalIt;
// We first loop over all VPS Units
for (nalIt = nalUnits[32].begin(); nalIt != nalUnits[32].end(); nalIt++){
vpsUnit vps(*nalIt);
vps.updateHVCC(hvccBox);
}
for (nalIt = nalUnits[33].begin(); nalIt != nalUnits[33].end(); nalIt++){
spsUnit sps(*nalIt);
sps.updateHVCC(hvccBox);
}
// NOTE: We dont parse the ppsUnit, as the only information it contains is parallelism mode,
// which is set to 0 for 'unknown'
std::deque<MP4::HVCCArrayEntry> hvccArrays;
hvccArrays.resize(3);
hvccArrays[0].arrayCompleteness = 0;
hvccArrays[0].nalUnitType = 32;
for (nalIt = nalUnits[32].begin(); nalIt != nalUnits[32].end(); nalIt++){
hvccArrays[0].nalUnits.push_back(*nalIt);
}
hvccArrays[1].arrayCompleteness = 0;
hvccArrays[1].nalUnitType = 33;
for (nalIt = nalUnits[33].begin(); nalIt != nalUnits[33].end(); nalIt++){
hvccArrays[1].nalUnits.push_back(*nalIt);
}
hvccArrays[2].arrayCompleteness = 0;
hvccArrays[2].nalUnitType = 34;
for (nalIt = nalUnits[34].begin(); nalIt != nalUnits[34].end(); nalIt++){
hvccArrays[2].nalUnits.push_back(*nalIt);
}
hvccBox.setArrays(hvccArrays);
hvccBox.setLengthSizeMinus1(3);
return std::string(hvccBox.payload(), hvccBox.payloadSize());
}
metaInfo initData::getMeta(){
metaInfo res;
if (!nalUnits.count(33)){return res;}
spsUnit sps(*nalUnits[33].begin());
sps.getMeta(res);
return res;
}
void skipProfileTierLevel(Utils::bitstream &bs, unsigned int maxSubLayersMinus1){
bs.skip(8);
bs.skip(32); // general_profile_flags
bs.skip(4);
bs.skip(44); // reserverd_zero
bs.skip(8);
std::deque<bool> profilePresent;
std::deque<bool> levelPresent;
for (size_t i = 0; i < maxSubLayersMinus1; i++){
profilePresent.push_back(bs.get(1));
levelPresent.push_back(bs.get(1));
}
if (maxSubLayersMinus1){
for (int i = maxSubLayersMinus1; i < 8; i++){bs.skip(2);}
}
for (int i = 0; i < maxSubLayersMinus1; i++){
if (profilePresent[i]){
bs.skip(8);
bs.skip(32); // sub_layer_profile_flags
bs.skip(4);
bs.skip(44); // reserved_zero
}
if (levelPresent[i]){bs.skip(8);}
}
}
std::string printProfileTierLevel(Utils::bitstream &bs, unsigned int maxSubLayersMinus1,
size_t indent){
std::stringstream r;
r << std::string(indent, ' ') << "general_profile_space: " << bs.get(2) << std::endl;
r << std::string(indent, ' ') << "general_tier_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "general_profile_idc: " << bs.get(5) << std::endl;
r << std::string(indent, ' ') << "general_profile_compatibility_flags: 0x" << std::hex
<< bs.get(32) << std::dec << std::endl;
r << std::string(indent, ' ') << "general_progressive_source_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "general_interlaced_source_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "general_non_packed_constraint_flag: " << bs.get(1)
<< std::endl;
r << std::string(indent, ' ') << "general_frame_only_constraint_flag: " << bs.get(1)
<< std::endl;
r << std::string(indent, ' ') << "general_reserved_zero_44bits: " << bs.get(44) << std::endl;
r << std::string(indent, ' ') << "general_level_idc: " << bs.get(8) << std::endl;
std::deque<bool> profilePresent;
std::deque<bool> levelPresent;
for (size_t i = 0; i < maxSubLayersMinus1; i++){
bool profile = bs.get(1);
bool level = bs.get(1);
profilePresent.push_back(profile);
levelPresent.push_back(level);
r << std::string(indent + 1, ' ') << "sub_layer_profile_present_flag[" << i
<< "]: " << (profile ? 1 : 0) << std::endl;
r << std::string(indent + 1, ' ') << "sub_layer_level_present_flag[" << i
<< "]: " << (level ? 1 : 0) << std::endl;
}
if (maxSubLayersMinus1){
for (int i = maxSubLayersMinus1; i < 8; i++){
r << std::string(indent + 1, ' ') << "reserver_zero_2_bits[" << i << "]: " << bs.get(2)
<< std::endl;
}
}
for (int i = 0; i < maxSubLayersMinus1; i++){
r << std::string(indent + 1, ' ') << "sub_layer[" << i << "]:" << std::endl;
if (profilePresent[i]){
r << std::string(indent + 2, ' ') << "sub_layer_profile_space: " << bs.get(2) << std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_tier_flag: " << bs.get(1) << std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_profile_idc: " << bs.get(5) << std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_profile_compatibility_flags: " << std::hex
<< bs.get(32) << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_progressive_source_flag: " << bs.get(1)
<< std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_interlaced_source_flag: " << bs.get(1)
<< std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_non_packed_constraint_flag: " << bs.get(1)
<< std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_frame_only_constraint_flag: " << bs.get(1)
<< std::endl;
r << std::string(indent + 2, ' ') << "sub_layer_reserved_zero_44bits: " << bs.get(44)
<< std::endl;
}
if (levelPresent[i]){
r << std::string(indent + 2, ' ') << "sub_layer_level_idc: " << bs.get(8) << std::endl;
}
}
return r.str();
}
void updateProfileTierLevel(Utils::bitstream &bs, MP4::HVCC &hvccBox,
unsigned int maxSubLayersMinus1){
hvccBox.setGeneralProfileSpace(bs.get(2));
unsigned int tierFlag = bs.get(1);
hvccBox.setGeneralProfileIdc(
std::max((unsigned long long)hvccBox.getGeneralProfileIdc(), bs.get(5)));
hvccBox.setGeneralProfileCompatibilityFlags(hvccBox.getGeneralProfileCompatibilityFlags() &
bs.get(32));
hvccBox.setGeneralConstraintIndicatorFlags(hvccBox.getGeneralConstraintIndicatorFlags() &
bs.get(48));
unsigned int levelIdc = bs.get(8);
if (tierFlag && !hvccBox.getGeneralTierFlag()){
hvccBox.setGeneralLevelIdc(levelIdc);
}else{
hvccBox.setGeneralLevelIdc(std::max((unsigned int)hvccBox.getGeneralLevelIdc(), levelIdc));
}
hvccBox.setGeneralTierFlag(tierFlag || hvccBox.getGeneralTierFlag());
// Remainder is for synchronsation of the parser
std::deque<bool> profilePresent;
std::deque<bool> levelPresent;
for (int i = 0; i < maxSubLayersMinus1; i++){
profilePresent.push_back(bs.get(1));
levelPresent.push_back(bs.get(1));
}
if (maxSubLayersMinus1){
for (int i = maxSubLayersMinus1; i < 8; i++){bs.skip(2);}
}
for (int i = 0; i < maxSubLayersMinus1; i++){
if (profilePresent[i]){
bs.skip(32);
bs.skip(32);
bs.skip(24);
}
if (levelPresent[i]){bs.skip(8);}
}
}
vpsUnit::vpsUnit(const std::string &_data){data = nalu::removeEmulationPrevention(_data);}
void vpsUnit::updateHVCC(MP4::HVCC &hvccBox){
Utils::bitstream bs;
bs.append(data);
bs.skip(16); // Nal Header
bs.skip(12);
unsigned int maxSubLayers = bs.get(3) + 1;
hvccBox.setNumberOfTemporalLayers(
std::max((unsigned int)hvccBox.getNumberOfTemporalLayers(), maxSubLayers));
bs.skip(17);
updateProfileTierLevel(bs, hvccBox, maxSubLayers - 1);
}
std::string vpsUnit::toPrettyString(size_t indent){
Utils::bitstream bs;
bs.append(data);
bs.skip(16); // Nal Header
std::stringstream r;
r << std::string(indent, ' ') << "vps_video_parameter_set_id: " << bs.get(4) << std::endl;
r << std::string(indent, ' ') << "vps_reserved_three_2bits: " << bs.get(2) << std::endl;
r << std::string(indent, ' ') << "vps_max_layers_minus1: " << bs.get(6) << std::endl;
unsigned int maxSubLayersMinus1 = bs.get(3);
r << std::string(indent, ' ') << "vps_max_sub_layers_minus1: " << maxSubLayersMinus1
<< std::endl;
r << std::string(indent, ' ') << "vps_temporal_id_nesting_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "vps_reserved_0xffff_16bits: " << std::hex << bs.get(16)
<< std::dec << std::endl;
r << std::string(indent, ' ') << "profile_tier_level(): " << std::endl
<< printProfileTierLevel(bs, maxSubLayersMinus1, indent + 1);
bool sub_layer_ordering_info = bs.get(1);
r << std::string(indent, ' ')
<< "vps_sub_layer_ordering_info_present_flag: " << sub_layer_ordering_info << std::endl;
for (int i = (sub_layer_ordering_info ? 0 : maxSubLayersMinus1); i <= maxSubLayersMinus1; i++){
r << std::string(indent, ' ') << "vps_max_dec_pic_buffering_minus1[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ') << "vps_max_num_reorder_pics[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ') << "vps_max_latency_increase_plus1[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
}
unsigned int vps_max_layer_id = bs.get(6);
uint64_t vps_num_layer_sets_minus1 = bs.getUExpGolomb();
r << std::string(indent, ' ') << "vps_max_layer_id: " << vps_max_layer_id << std::endl;
r << std::string(indent, ' ') << "vps_num_layer_sets_minus1: " << vps_num_layer_sets_minus1
<< std::endl;
for (int i = 1; i <= vps_num_layer_sets_minus1; i++){
for (int j = 0; j < vps_max_layer_id; j++){
r << std::string(indent, ' ') << "layer_id_included_flag[" << i << "][" << j
<< "]: " << bs.get(1) << std::endl;
}
}
bool vps_timing_info = bs.get(1);
r << std::string(indent, ' ') << "vps_timing_info_present_flag: " << (vps_timing_info ? 1 : 0)
<< std::endl;
return r.str();
}
spsUnit::spsUnit(const std::string &_data){data = nalu::removeEmulationPrevention(_data);}
void skipShortTermRefPicSet(Utils::bitstream &bs, unsigned int idx, size_t count){
static std::map<int, int> negativePics;
static std::map<int, int> positivePics;
if (idx == 0){
negativePics.clear();
positivePics.clear();
}
bool interPrediction = false;
if (idx != 0){interPrediction = bs.get(1);}
if (interPrediction){
uint64_t deltaIdxMinus1 = 0;
if (idx == count){deltaIdxMinus1 = bs.getUExpGolomb();}
bs.skip(1);
bs.getUExpGolomb();
uint64_t refRpsIdx = idx - deltaIdxMinus1 - 1;
uint64_t deltaPocs = negativePics[refRpsIdx] + positivePics[refRpsIdx];
for (int j = 0; j < deltaPocs; j++){
bool usedByCurrPicFlag = bs.get(1);
if (!usedByCurrPicFlag){bs.skip(1);}
}
}else{
negativePics[idx] = bs.getUExpGolomb();
positivePics[idx] = bs.getUExpGolomb();
for (int i = 0; i < negativePics[idx]; i++){
bs.getUExpGolomb();
bs.skip(1);
}
for (int i = 0; i < positivePics[idx]; i++){
bs.getUExpGolomb();
bs.skip(1);
}
}
}
std::string printShortTermRefPicSet(Utils::bitstream &bs, unsigned int idx, size_t indent){
std::stringstream r;
bool interPrediction = false;
if (idx != 0){
interPrediction = bs.get(1);
r << std::string(indent, ' ')
<< "inter_ref_pic_set_predicition_flag: " << (interPrediction ? 1 : 0) << std::endl;
}
if (interPrediction){
WARN_MSG("interprediciton not yet handled");
}else{
uint64_t negativePics = bs.getUExpGolomb();
uint64_t positivePics = bs.getUExpGolomb();
r << std::string(indent, ' ') << "num_negative_pics: " << negativePics << std::endl;
r << std::string(indent, ' ') << "num_positive_pics: " << positivePics << std::endl;
for (int i = 0; i < negativePics; i++){
r << std::string(indent + 1, ' ') << "delta_poc_s0_minus1[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent + 1, ' ') << "used_by_curr_pic_s0_flag[" << i << "]: " << bs.get(1)
<< std::endl;
}
for (int i = 0; i < positivePics; i++){
r << std::string(indent + 1, ' ') << "delta_poc_s1_minus1[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent + 1, ' ') << "used_by_curr_pic_s1_flag[" << i << "]: " << bs.get(1)
<< std::endl;
}
}
return r.str();
}
void parseVuiParameters(Utils::bitstream &bs, metaInfo &res){
bool aspectRatio = bs.get(1);
if (aspectRatio){
uint16_t aspectRatioIdc = bs.get(8);
if (aspectRatioIdc == 255){bs.skip(32);}
}
bool overscanInfo = bs.get(1);
if (overscanInfo){bs.skip(1);}
bool videoSignalTypePresent = bs.get(1);
if (videoSignalTypePresent){
bs.skip(4);
bool colourDescription = bs.get(1);
if (colourDescription){bs.skip(24);}
}
bool chromaLocPresent = bs.get(1);
if (chromaLocPresent){
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bs.skip(3);
bool defaultDisplay = bs.get(1);
if (defaultDisplay){
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bool timingFlag = bs.get(1);
if (timingFlag){
uint32_t unitsInTick = bs.get(32);
uint32_t timescale = bs.get(32);
res.fps = (double)timescale / unitsInTick;
}
}
std::string printVuiParameters(Utils::bitstream &bs, size_t indent){
std::stringstream r;
bool aspectRatio = bs.get(1);
r << std::string(indent, ' ') << "aspect_ratio_info_present_flag: " << (aspectRatio ? 1 : 0)
<< std::endl;
if (aspectRatio){
uint16_t aspectRatioIdc = bs.get(8);
r << std::string(indent, ' ') << "aspect_ratio_idc: " << aspectRatioIdc << std::endl;
if (aspectRatioIdc == 255){
r << std::string(indent, ' ') << "sar_width: " << bs.get(16) << std::endl;
r << std::string(indent, ' ') << "sar_height: " << bs.get(16) << std::endl;
}
}
return r.str();
}
void skipScalingList(Utils::bitstream &bs){
for (int sizeId = 0; sizeId < 4; sizeId++){
for (int matrixId = 0; matrixId < (sizeId == 3 ? 2 : 6); matrixId++){
bool modeFlag = bs.get(1);
if (!modeFlag){
bs.getUExpGolomb();
}else{
size_t coefNum = std::min(64, (1 << (4 + (sizeId << 1))));
if (sizeId > 1){bs.getExpGolomb();}
for (int i = 0; i < coefNum; i++){bs.getExpGolomb();}
}
}
}
}
void spsUnit::getMeta(metaInfo &res){
Utils::bitstream bs;
bs.append(data);
bs.skip(16); // Nal Header
bs.skip(4);
unsigned int maxSubLayersMinus1 = bs.get(3);
bs.skip(1);
skipProfileTierLevel(bs, maxSubLayersMinus1);
bs.getUExpGolomb();
uint64_t chromaFormatIdc = bs.getUExpGolomb();
bool separateColorPlane = false;
if (chromaFormatIdc == 3){separateColorPlane = bs.get(1);}
res.width = bs.getUExpGolomb();
res.height = bs.getUExpGolomb();
bool conformanceWindow = bs.get(1);
if (conformanceWindow){
uint8_t subWidthC = ((chromaFormatIdc == 1 || chromaFormatIdc == 2) ? 2 : 1);
uint8_t subHeightC = (chromaFormatIdc == 1 ? 2 : 1);
bs.getUExpGolomb(); // Skip left
uint64_t right = bs.getUExpGolomb();
bs.getUExpGolomb(); // Skip top
uint64_t bottom = bs.getUExpGolomb();
res.width -= (subWidthC * right);
res.height -= (subHeightC * bottom);
}
bs.getUExpGolomb();
bs.getUExpGolomb();
uint64_t log2MaxPicOrderCntLsbMinus4 = bs.getUExpGolomb();
bool subLayerOrdering = bs.get(1);
for (int i = (subLayerOrdering ? 0 : maxSubLayersMinus1); i <= maxSubLayersMinus1; i++){
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bool scalingListEnabled = bs.get(1);
if (scalingListEnabled){
bool scalingListPresent = bs.get(1);
if (scalingListPresent){skipScalingList(bs);}
}
bs.skip(2);
bool pcmEnabled = bs.get(1);
if (pcmEnabled){
bs.skip(8);
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.skip(1);
}
uint64_t shortTermPicSets = bs.getUExpGolomb();
for (int i = 0; i < shortTermPicSets; i++){skipShortTermRefPicSet(bs, i, shortTermPicSets);}
bool longTermRefPics = bs.get(1);
if (longTermRefPics){
uint64_t numLongTermPics = bs.getUExpGolomb();
for (int i = 0; i < numLongTermPics; i++){
bs.skip(log2MaxPicOrderCntLsbMinus4 + 4);
bs.skip(1);
}
}
bs.skip(2);
bool vuiParams = bs.get(1);
if (vuiParams){parseVuiParameters(bs, res);}
}
std::string spsUnit::toPrettyString(size_t indent){
Utils::bitstream bs;
bs.append(data);
bs.skip(16); // Nal Header
std::stringstream r;
r << std::string(indent, ' ') << "sps_video_parameter_set_id: " << bs.get(4) << std::endl;
unsigned int maxSubLayersMinus1 = bs.get(3);
r << std::string(indent, ' ') << "sps_max_sub_layers_minus1: " << maxSubLayersMinus1
<< std::endl;
r << std::string(indent, ' ') << "sps_temporal_id_nesting_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "profile_tier_level(): " << std::endl
<< printProfileTierLevel(bs, maxSubLayersMinus1, indent + 1);
r << std::string(indent, ' ') << "sps_seq_parameter_set_id: " << bs.getUExpGolomb()
<< std::endl;
uint64_t chromaFormatIdc = bs.getUExpGolomb();
r << std::string(indent, ' ') << "chroma_format_idc: " << chromaFormatIdc << std::endl;
if (chromaFormatIdc == 3){
r << std::string(indent, ' ') << "separate_colour_plane_flag: " << bs.get(1) << std::endl;
}
r << std::string(indent, ' ') << "pic_width_in_luma_samples: " << bs.getUExpGolomb()
<< std::endl;
r << std::string(indent, ' ') << "pic_height_in_luma_samples: " << bs.getUExpGolomb()
<< std::endl;
bool conformance_window_flag = bs.get(1);
r << std::string(indent, ' ') << "conformance_window_flag: " << conformance_window_flag
<< std::endl;
if (conformance_window_flag){
r << std::string(indent, ' ') << "conf_window_left_offset: " << bs.getUExpGolomb()
<< std::endl;
r << std::string(indent, ' ') << "conf_window_right_offset: " << bs.getUExpGolomb()
<< std::endl;
r << std::string(indent, ' ') << "conf_window_top_offset: " << bs.getUExpGolomb()
<< std::endl;
r << std::string(indent, ' ') << "conf_window_bottom_offset: " << bs.getUExpGolomb()
<< std::endl;
}
r << std::string(indent, ' ') << "bit_depth_luma_minus8: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ') << "bit_depth_chroma_minus8: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ') << "log2_max_pic_order_cnt_lsb_minus4: " << bs.getUExpGolomb()
<< std::endl;
bool subLayerOrdering = bs.get(1);
r << std::string(indent, ' ')
<< "sps_sub_layer_ordering_info_present_flag: " << subLayerOrdering << std::endl;
for (int i = (subLayerOrdering ? 0 : maxSubLayersMinus1); i <= maxSubLayersMinus1; i++){
r << std::string(indent + 1, ' ') << "sps_max_dec_pic_buffering_minus1[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent + 1, ' ') << "sps_max_num_reorder_pics[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent + 1, ' ') << "sps_max_latency_increase_plus1[" << i
<< "]: " << bs.getUExpGolomb() << std::endl;
}
r << std::string(indent, ' ')
<< "log2_min_luma_coding_block_size_minus3: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ')
<< "log2_diff_max_min_luma_coding_block_size: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ') << "log2_min_transform_block_size_minus2: " << bs.getUExpGolomb()
<< std::endl;
r << std::string(indent, ' ')
<< "log2_diff_max_min_transform_block_size: " << bs.getUExpGolomb() << std::endl;
r << std::string(indent, ' ') << "max_transform_hierarchy_depth_inter: " << bs.getUExpGolomb()
<< std::endl;
r << std::string(indent, ' ') << "max_transform_hierarchy_depth_intra: " << bs.getUExpGolomb()
<< std::endl;
bool scalingListEnabled = bs.get(1);
r << std::string(indent, ' ') << "scaling_list_enabled_flag: " << scalingListEnabled
<< std::endl;
if (scalingListEnabled){WARN_MSG("Not implemented scaling list in HEVC sps");}
r << std::string(indent, ' ') << "amp_enabled_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "sample_adaptive_offset_enabled_flag: " << bs.get(1)
<< std::endl;
bool pcmEnabled = bs.get(1);
r << std::string(indent, ' ') << "pcm_enabled_flag: " << pcmEnabled << std::endl;
if (pcmEnabled){WARN_MSG("Not implemented pcm_enabled in HEVC sps");}
uint64_t shortTermPicSets = bs.getUExpGolomb();
r << std::string(indent, ' ') << "num_short_term_ref_pic_sets: " << shortTermPicSets
<< std::endl;
for (int i = 0; i < shortTermPicSets; i++){
r << std::string(indent, ' ') << "short_term_ref_pic_set(" << i << "):" << std::endl
<< printShortTermRefPicSet(bs, i, indent + 1);
}
bool longTermRefPics = bs.get(1);
r << std::string(indent, ' ')
<< "long_term_ref_pics_present_flag: " << (longTermRefPics ? 1 : 0) << std::endl;
if (longTermRefPics){WARN_MSG("Implement longTermRefPics");}
r << std::string(indent, ' ') << "sps_temporal_mvp_enabled_flag: " << bs.get(1) << std::endl;
r << std::string(indent, ' ') << "strong_intra_smoothing_enabled_flag: " << bs.get(1)
<< std::endl;
bool vuiParams = bs.get(1);
r << std::string(indent, ' ') << "vui_parameters_present_flag: " << (vuiParams ? 1 : 0)
<< std::endl;
if (vuiParams){
r << std::string(indent, ' ') << "vui_parameters:" << std::endl
<< printVuiParameters(bs, indent + 1);
}
return r.str();
}
void spsUnit::updateHVCC(MP4::HVCC &hvccBox){
Utils::bitstream bs;
bs.append(data);
bs.skip(16); // Nal Header
bs.skip(4);
unsigned int maxSubLayers = bs.get(3) + 1;
hvccBox.setNumberOfTemporalLayers(
std::max((unsigned int)hvccBox.getNumberOfTemporalLayers(), maxSubLayers));
hvccBox.setTemporalIdNested(bs.get(1));
updateProfileTierLevel(bs, hvccBox, maxSubLayers - 1);
bs.getUExpGolomb();
hvccBox.setChromaFormat(bs.getUExpGolomb());
if (hvccBox.getChromaFormat() == 3){bs.skip(1);}
bs.getUExpGolomb();
bs.getUExpGolomb();
if (bs.get(1)){
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
}
hvccBox.setBitDepthLumaMinus8(bs.getUExpGolomb());
hvccBox.setBitDepthChromaMinus8(bs.getUExpGolomb());
int log2MaxPicOrderCntLsb = bs.getUExpGolomb() + 4;
for (int i = bs.get(1) ? 0 : (maxSubLayers - 1); i < maxSubLayers; i++){
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
if (bs.get(1) && bs.get(1)){
for (int i = 0; i < 4; i++){
for (int j = 0; j < (i == 3 ? 2 : 6); j++){
if (!bs.get(1)){
bs.getUExpGolomb();
}else{
int numCoeffs = std::min(64, 1 << (4 + (i << 1)));
if (i > 1){bs.getExpGolomb();}
for (int k = 0; k < numCoeffs; k++){bs.getExpGolomb();}
}
}
}
}
bs.skip(2);
if (bs.get(1)){
bs.skip(8);
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.skip(1);
}
unsigned long long shortTermRefPicSets = bs.getUExpGolomb();
for (int i = 0; i < shortTermRefPicSets; i++){
// parse rps, return if ret < 0
}
if (bs.get(1)){
if (log2MaxPicOrderCntLsb > 16){log2MaxPicOrderCntLsb = 16;}
int numLongTermRefPicsSps = bs.getUExpGolomb();
for (int i = 0; i < numLongTermRefPicsSps; i++){bs.skip(log2MaxPicOrderCntLsb + 1);}
}
bs.skip(2);
if (bs.get(1)){
// parse vui
if (bs.get(1) && bs.get(8) == 255){bs.skip(32);}
if (bs.get(1)){bs.skip(1);}
if (bs.get(1)){
bs.skip(4);
if (bs.get(1)){bs.skip(24);}
}
if (bs.get(1)){
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bs.skip(3);
if (bs.get(1)){
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
}
if (bs.get(1)){
bs.skip(32);
bs.skip(32);
if (bs.get(1)){bs.getUExpGolomb();}
if (bs.get(1)){
int nalHrd = bs.get(1);
int vclHrd = bs.get(1);
int subPicPresent = 0;
if (nalHrd || vclHrd){
subPicPresent = bs.get(1);
if (subPicPresent){bs.skip(19);}
bs.skip(8);
if (subPicPresent){bs.skip(4);}
bs.skip(15);
}
//
for (int i = 0; i < maxSubLayers; i++){
int cpbCnt = 1;
int lowDelay = 0;
int fixedRateCvs = 0;
int fixedRateGeneral = bs.get(1);
if (fixedRateGeneral){fixedRateCvs = bs.get(1);}
if (fixedRateCvs){
bs.getUExpGolomb();
}else{
lowDelay = bs.get(1);
}
if (!lowDelay){cpbCnt = bs.getUExpGolomb() + 1;}
if (nalHrd){
for (int i = 0; i < cpbCnt; i++){
bs.getUExpGolomb();
bs.getUExpGolomb();
if (subPicPresent){
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bs.skip(1);
}
}
if (vclHrd){
for (int i = 0; i < cpbCnt; i++){
bs.getUExpGolomb();
bs.getUExpGolomb();
if (subPicPresent){
bs.getUExpGolomb();
bs.getUExpGolomb();
}
bs.skip(1);
}
}
}
}
}
if (bs.get(1)){
bs.skip(3);
int spatialSegmentIdc = bs.getUExpGolomb();
hvccBox.setMinSpatialSegmentationIdc(
std::min((int)hvccBox.getMinSpatialSegmentationIdc(), spatialSegmentIdc));
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
bs.getUExpGolomb();
}
}
}
}// namespace h265