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mistserver/lib/mp4_encryption.cpp

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#include "mp4_encryption.h"
#include "defines.h"
namespace MP4 {
PSSH::PSSH() {
memcpy(data + 4, "pssh", 4);
}
std::string PSSH::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[pssh] Protection System Specific Header Box (" << boxedSize() << ")" << std::endl;
r << fullBox::toPrettyString(indent);
r << std::string(indent + 1, ' ') << "SystemID: " << getSystemIDHex() << std::endl;
if (getVersion()){
r << std::string(indent + 1, ' ') << "KID_count: " << getKIDCount() << std::endl;
}
r << std::string(indent + 1, ' ') << "DataSize: " << getDataSize() << std::endl;
r << std::string(indent + 1, ' ') << "Data: ";
size_t dataSize = getDataSize();
char * data = getData();
for (size_t i = 0; i < dataSize; ++i){
r << std::hex << std::setw(2) << std::setfill('0') << (int)data[i] << std::dec << "";
}
r << std::endl;
return r.str();
}
std::string PSSH::getSystemIDHex() {
char * systemID = getString(4);
std::stringstream res;
for (size_t i = 0; i < 16; ++i){
res << std::hex << std::setw(2) << std::setfill('0') << (int)systemID[i] << std::dec;
}
return "0x" + res.str();
}
void PSSH::setSystemIDHex(const std::string & systemID) {
setString(systemID, 4);
}
size_t PSSH::getKIDCount(){
return getVersion() ? getInt32(20) : 0;
}
size_t PSSH::getDataSize(){
if (getVersion()){
size_t kidCount = getInt32(20);
return getInt32(24 + (kidCount * 16));
}
return getInt32(20);
}
char * PSSH::getData(){
if (getVersion()){
size_t kidCount = getInt32(20);
return getString(24 + (kidCount * 16) + 4);
}
return getString(24);
}
void PSSH::setData(const std::string & data){
if (getVersion()){
WARN_MSG("Not implemented yet!");
return;
}
for (int i = 0; i < data.size(); i++){
setInt8(data[i], 24 + i);
}
setInt32(data.size(), 20);
}
std::string TENC::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[tenc] Track Encryption Box (" << boxedSize() << ")" << std::endl;
r << fullBox::toPrettyString(indent);
r << std::string(indent + 1, ' ') << "default_isEncrypted: " << getDefaultIsEncrypted() << std::endl;
r << std::string(indent + 1, ' ') << "default_IV_size: " << getDefaultIVSize() << std::endl;
r << std::string(indent + 1, ' ') << "default_KID: ";
std::string defaultKID = getDefaultKID();
for (int i = 0; i < 16; i++){
r << std::hex << std::setw(2) << std::setfill('0') << (int)defaultKID[i] << std::dec << " ";
}
r << std::endl;
return r.str();
}
TENC::TENC() {
memcpy(data + 4, "tenc", 4);
setDefaultIsEncrypted(1);
setDefaultIVSize(8);
}
size_t TENC::getDefaultIsEncrypted(){
return getInt24(4);
}
void TENC::setDefaultIsEncrypted(size_t isEncrypted){
setInt24(isEncrypted, 4);
}
size_t TENC::getDefaultIVSize(){
return getInt8(7);
}
void TENC::setDefaultIVSize(uint8_t ivSize){
setInt8(ivSize, 7);
}
std::string TENC::getDefaultKID(){
std::string result;
for (int i = 8; i < 24; i++){
result += getInt8(i);
}
return result;
}
void TENC::setDefaultKID(const std::string & kid){
for (int i = 0; i < 16; i++){
if (i < kid.size()){
setInt8(kid[i], i + 8);
}else{
setInt8(0, i + 8);
}
}
}
SENC::SENC() {
memcpy(data + 4, "senc", 4);
setFlags(2);
}
uint32_t SENC::getSampleCount() const {
return getInt32(4);
}
#define IV_SIZE 8
void SENC::setSample(UUID_SampleEncryption_Sample newSample, size_t index) {
int myOffset = 8;
for (unsigned int i = 0; i < std::min(index, (size_t)getSampleCount()); i++) {
myOffset += IV_SIZE;
if (getFlags() & 0x02) {
int entryCount = getInt16(myOffset);
myOffset += 2 + (entryCount * 6);
}
}
if (index > getSampleCount()) {
ERROR_MSG("First fill intermediate entries!");
return;
/*
//we are now at the end of currently reserved space, reserve more and adapt offset accordingly.
int reserveSize = ((index - getSampleCount())) * (IV_SIZE + (getFlags() & 0x02));
reserveSize += IV_SIZE;
if (getFlags() & 0x02) {
reserveSize += 2 + newSample.Entries.size();
}
if (!reserve(myOffset, 0, reserveSize)) {
return;//Memory errors...
}
myOffset += (index - getSampleCount()) * (IV_SIZE + (getFlags() & 0x02));
*/
}
//write box.
for (int i = 0; i < IV_SIZE; i++) {
setInt8(newSample.InitializationVector[i], myOffset ++);//set and skip
}
if (getFlags() & 0x02) {
setInt16(newSample.Entries.size(), myOffset);
myOffset += 2;
for (std::vector<UUID_SampleEncryption_Sample_Entry>::iterator it = newSample.Entries.begin(); it != newSample.Entries.end(); it++) {
setInt16(it->BytesClear, myOffset);
myOffset += 2;
setInt32(it->BytesEncrypted, myOffset);
myOffset += 4;
}
}
if (index >= getSampleCount()) {
setInt32(index + 1, 4);
}
}
UUID_SampleEncryption_Sample SENC::getSample(size_t index) const {
if (index >= getSampleCount()) {
return UUID_SampleEncryption_Sample();
}
int myOffset = 8;
for (unsigned int i = 0; i < index; i++) {
myOffset += IV_SIZE;
if (getFlags() & 0x02) {
int entryCount = getInt16(myOffset);
myOffset += 2;//skip over entrycount
myOffset += entryCount * 6;//skip entryCount sample entries
}
}
UUID_SampleEncryption_Sample result;
for (int i = 0; i < IV_SIZE; i++) {
result.InitializationVector += (char)getInt8(myOffset++);//read and skip
}
if (getFlags() & 0x02) {
result.NumberOfEntries = getInt16(myOffset);
myOffset += 2;
for (unsigned int i = 0; i < result.NumberOfEntries; i++) {
result.Entries.push_back(UUID_SampleEncryption_Sample_Entry());
result.Entries[i].BytesClear = getInt16(myOffset);
myOffset += 2;
result.Entries[i].BytesEncrypted = getInt32(myOffset);
myOffset += 4;
}
}
return result;
}
std::string SENC::toPrettyString(uint32_t indent) const {
std::stringstream r;
r << std::string(indent, ' ') << "[senc] Sample Encryption Box (" << boxedSize() << ")" << std::endl;
r << fullBox::toPrettyString(indent);
r << std::string(indent + 1, ' ') << "Sample Count: " << getSampleCount() << std::endl;
for (unsigned int i = 0; i < getSampleCount(); i++) {
UUID_SampleEncryption_Sample tmpSample = getSample(i);
r << std::string(indent + 1, ' ') << "[" << i << "]" << std::endl;
r << std::string(indent + 3, ' ') << "Initialization Vector: 0x";
for (unsigned int j = 0; j < tmpSample.InitializationVector.size(); j++) {
r << std::hex << std::setw(2) << std::setfill('0') << (int)tmpSample.InitializationVector[j] << std::dec;
}
r << std::endl;
if (getFlags() & 0x02) {
r << std::string(indent + 3, ' ') << "Number of entries: " << tmpSample.NumberOfEntries << std::endl;
for (unsigned int j = 0; j < tmpSample.NumberOfEntries; j++) {
r << std::string(indent + 3, ' ') << "[" << j << "]" << std::endl;
r << std::string(indent + 5, ' ') << "Bytes clear: " << tmpSample.Entries[j].BytesClear << std::endl;
r << std::string(indent + 5, ' ') << "Bytes encrypted: " << tmpSample.Entries[j].BytesEncrypted << std::endl;
}
}
}
return r.str();
}
SAIZ::SAIZ(size_t entryCount){
memcpy(data + 4, "saiz", 4);
setFlags(0);
setVersion(0);
setInt24(0, 4); //Default sample size
setInt16(entryCount, 7);//EntryCount Samples
for (int i = 0; i < entryCount; i++){
setInt8(16, i+9);//16 bytes IV's
}
}
size_t SAIZ::getDefaultSampleSize(){
return getInt24(4);
}
size_t SAIZ::getEntryCount(){
return getInt16(7);
}
size_t SAIZ::getEntrySize(size_t entryNo){
if (entryNo >= getEntryCount()){return -1;}
return getInt8(9 + entryNo);
}
std::string SAIZ::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[saiz] Sample Auxiliary Information Size Box (" << boxedSize() << ")" << std::endl;
r << fullBox::toPrettyString(indent);
r << std::string(indent + 1, ' ') << "Default Sample Size: " << getDefaultSampleSize() << std::endl;
r << std::string(indent + 1, ' ') << "Entry Count: " << getEntryCount() << std::endl;
for (size_t i = 0; i < getEntryCount(); ++i){
r << std::string(indent + 2, ' ') << "[" << i << "]: " << getEntrySize(i) << std::endl;
}
return r.str();
}
SAIO::SAIO(size_t offset){
memcpy(data + 4, "saio", 4);
setInt32(1, 4);
setInt32(offset, 8);
}
size_t SAIO::getEntryCount(){
return getInt32(4);
}
size_t SAIO::getEntrySize(size_t entryNo){
if (entryNo >= getEntryCount()){return -1;}
return getInt32(8 + (entryNo * 4));
}
std::string SAIO::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[saio] Sample Auxiliary Information Offset Box (" << boxedSize() << ")" << std::endl;
r << fullBox::toPrettyString(indent);
r << std::string(indent + 1, ' ') << "Entry Count: " << getEntryCount() << std::endl;
for (size_t i = 0; i < getEntryCount(); ++i){
r << std::string(indent + 2, ' ') << "[" << i << "]: " << getEntrySize(i) << std::endl;
}
return r.str();
}
UUID_SampleEncryption::UUID_SampleEncryption() {
setUUID((std::string)"a2394f52-5a9b-4f14-a244-6c427c648df4");
}
UUID_SampleEncryption::UUID_SampleEncryption(const SENC & senc){
setUUID((std::string)"a2394f52-5a9b-4f14-a244-6c427c648df4");
setVersion(0);
setFlags(2);
size_t sampleCount = senc.getSampleCount();
for (size_t i = 0; i < sampleCount; ++i){
setSample(senc.getSample(i), i);
}
}
void UUID_SampleEncryption::setVersion(uint32_t newVersion) {
setInt8(newVersion, 16);
}
uint32_t UUID_SampleEncryption::getVersion() {
return getInt8(16);
}
void UUID_SampleEncryption::setFlags(uint32_t newFlags) {
setInt24(newFlags, 17);
}
uint32_t UUID_SampleEncryption::getFlags() {
return getInt24(17);
}
void UUID_SampleEncryption::setAlgorithmID(uint32_t newAlgorithmID) {
if (getFlags() & 0x01) {
setInt24(newAlgorithmID, 20);
}
}
uint32_t UUID_SampleEncryption::getAlgorithmID() {
if (getFlags() & 0x01) {
return getInt24(20);
}
return -1;
}
void UUID_SampleEncryption::setIVSize(uint32_t newIVSize) {
if (getFlags() & 0x01) {
setInt8(newIVSize, 23);
}
}
uint32_t UUID_SampleEncryption::getIVSize() {
if (getFlags() & 0x01) {
return getInt8(23);
}
return -1;
}
void UUID_SampleEncryption::setKID(std::string newKID) {
if (newKID == "") {
return;
}
if (getFlags() & 0x01) {
while (newKID.size() < 16) {
newKID += (char)0x00;
}
for (int i = 0; i < 16; i++) {
setInt8(newKID[i], 24 + i);
}
}
}
std::string UUID_SampleEncryption::getKID() {
if (getFlags() & 0x01) {
std::string result;
for (int i = 0; i < 16; i++) {
result += (char)getInt8(24 + i);
}
return result;
}
return "";
}
uint32_t UUID_SampleEncryption::getSampleCount() {
int myOffset = 20;
if (getFlags() & 0x01) {
myOffset += 20;
}
return getInt32(myOffset);
}
#define IV_SIZE 8
void UUID_SampleEncryption::setSample(UUID_SampleEncryption_Sample newSample, size_t index) {
int myOffset = 20;
myOffset += 20 * (getFlags() & 0x01);
myOffset += 4;//sampleCount is here;
for (unsigned int i = 0; i < std::min(index, (size_t)getSampleCount()); i++) {
myOffset += IV_SIZE;
if (getFlags() & 0x02) {
int entryCount = getInt16(myOffset);
myOffset += 2 + (entryCount * 6);
}
}
if (index > getSampleCount()) {
ERROR_MSG("First fill intermediate entries!");
return;
}
//write box.
for (int i = 0; i < IV_SIZE; i++) {
setInt8(newSample.InitializationVector[i], myOffset ++);//set and skip
}
if (getFlags() & 0x02) {
setInt16(newSample.Entries.size(), myOffset);
myOffset += 2;
for (std::vector<UUID_SampleEncryption_Sample_Entry>::iterator it = newSample.Entries.begin(); it != newSample.Entries.end(); it++) {
setInt16(it->BytesClear, myOffset);
myOffset += 2;
setInt32(it->BytesEncrypted, myOffset);
myOffset += 4;
}
}
if (index >= getSampleCount()) {
setInt32(index + 1, 20 + (20 * (getFlags() & 0x01)));
}
}
UUID_SampleEncryption_Sample UUID_SampleEncryption::getSample(size_t index) {
if (index >= getSampleCount()) {
return UUID_SampleEncryption_Sample();
}
int myOffset = 20;
myOffset += 20 * (getFlags() & 0x01);
myOffset += 4;//sampleCount is here
for (unsigned int i = 0; i < index; i++) {
myOffset += IV_SIZE;
if (getFlags() & 0x02) {
int entryCount = getInt16(myOffset);
myOffset += 2;//skip over entrycount
myOffset += entryCount * 6;//skip entryCount sample entries
}
}
UUID_SampleEncryption_Sample result;
for (int i = 0; i < IV_SIZE; i++) {
result.InitializationVector += getInt8(myOffset++);//read and skip
}
if (getFlags() & 0x02) {
result.NumberOfEntries = getInt16(myOffset);
myOffset += 2;
for (unsigned int i = 0; i < result.NumberOfEntries; i++) {
result.Entries.push_back(UUID_SampleEncryption_Sample_Entry());
result.Entries[i].BytesClear = getInt16(myOffset);
myOffset += 2;
result.Entries[i].BytesEncrypted = getInt32(myOffset);
myOffset += 4;
}
}
return result;
}
std::string UUID_SampleEncryption::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[a2394f52-5a9b-4f14-a244-6c427c648df4] Sample Encryption Box (" << boxedSize() << ")" << std::endl;
r << std::string(indent + 1, ' ') << "Version: " << getVersion() << std::endl;
r << std::string(indent + 1, ' ') << "Flags: " << getFlags() << std::endl;
if (getFlags() & 0x01) {
r << std::string(indent + 1, ' ') << "Algorithm ID: " << getAlgorithmID() << std::endl;
r << std::string(indent + 1, ' ') << "IV Size: " << getIVSize() << std::endl;
r << std::string(indent + 1, ' ') << "Key ID: " << getKID() << std::endl;
}
r << std::string(indent + 1, ' ') << "Sample Count: " << getSampleCount() << std::endl;
for (unsigned int i = 0; i < getSampleCount(); i++) {
UUID_SampleEncryption_Sample tmpSample = getSample(i);
r << std::string(indent + 1, ' ') << "[" << i << "]" << std::endl;
r << std::string(indent + 3, ' ') << "Initialization Vector: 0x";
for (unsigned int j = 0; j < tmpSample.InitializationVector.size(); j++) {
r << std::hex << std::setw(2) << std::setfill('0') << (int)tmpSample.InitializationVector[j] << std::dec;
}
r << std::endl;
if (getFlags() & 0x02) {
r << std::string(indent + 3, ' ') << "Number of entries: " << tmpSample.NumberOfEntries << std::endl;
for (unsigned int j = 0; j < tmpSample.NumberOfEntries; j++) {
r << std::string(indent + 3, ' ') << "[" << j << "]" << std::endl;
r << std::string(indent + 5, ' ') << "Bytes clear: " << tmpSample.Entries[j].BytesClear << std::endl;
r << std::string(indent + 5, ' ') << "Bytes encrypted: " << tmpSample.Entries[j].BytesEncrypted << std::endl;
}
}
}
return r.str();
}
UUID_TrackEncryption::UUID_TrackEncryption() {
setUUID((std::string)"8974dbce-7be7-4c51-84f9-7148f9882554");
}
void UUID_TrackEncryption::setVersion(uint32_t newVersion) {
setInt8(newVersion, 16);
}
uint32_t UUID_TrackEncryption::getVersion() {
return getInt8(16);
}
void UUID_TrackEncryption::setFlags(uint32_t newFlags) {
setInt24(newFlags, 17);
}
uint32_t UUID_TrackEncryption::getFlags() {
return getInt24(17);
}
void UUID_TrackEncryption::setDefaultAlgorithmID(uint32_t newID) {
setInt24(newID, 20);
}
uint32_t UUID_TrackEncryption::getDefaultAlgorithmID() {
return getInt24(20);
}
void UUID_TrackEncryption::setDefaultIVSize(uint8_t newIVSize) {
setInt8(newIVSize, 23);
}
uint8_t UUID_TrackEncryption::getDefaultIVSize() {
return getInt8(23);
}
void UUID_TrackEncryption::setDefaultKID(std::string newKID) {
for (unsigned int i = 0; i < 16; i++) {
if (i < newKID.size()) {
setInt8(newKID[i], 24 + i);
} else {
setInt8(0x00, 24 + i);
}
}
}
std::string UUID_TrackEncryption::getDefaultKID() {
std::string result;
for (int i = 0; i < 16; i++) {
result += getInt8(24 + i);
}
return result;
}
std::string UUID_TrackEncryption::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[8974dbce-7be7-4c51-84f9-7148f9882554] Track Encryption Box (" << boxedSize() << ")" << std::endl;
r << std::string(indent + 2, ' ') << "Version: " << getVersion() << std::endl;
r << std::string(indent + 2, ' ') << "Flags: " << getFlags() << std::endl;
r << std::string(indent + 2, ' ') << "Default Algorithm ID: " << std::hex << getDefaultAlgorithmID() << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "Default IV Size: " << (int)getDefaultIVSize() << std::endl;
r << std::string(indent + 2, ' ') << "Default KID: 16 bytes of binary data." << std::endl;
return r.str();
}
UUID_ProtectionSystemSpecificHeader::UUID_ProtectionSystemSpecificHeader() {
setUUID((std::string)"d08a4f18-10f3-4a82-b6c8-32d8aba183d3");
}
void UUID_ProtectionSystemSpecificHeader::setVersion(uint32_t newVersion) {
setInt8(newVersion, 16);
}
uint32_t UUID_ProtectionSystemSpecificHeader::getVersion() {
return getInt8(16);
}
void UUID_ProtectionSystemSpecificHeader::setFlags(uint32_t newFlags) {
setInt24(newFlags, 17);
}
uint32_t UUID_ProtectionSystemSpecificHeader::getFlags() {
return getInt24(17);
}
void UUID_ProtectionSystemSpecificHeader::setSystemID(std::string newID) {
for (unsigned int i = 0; i < 16; i++) {
if (i < newID.size()) {
setInt8(newID[i], 20 + i);
} else {
setInt8(0x00, 20 + i);
}
}
}
std::string UUID_ProtectionSystemSpecificHeader::getSystemID() {
std::string result;
for (int i = 0; i < 16; i++) {
result += getInt8(20 + i);
}
return result;
}
uint32_t UUID_ProtectionSystemSpecificHeader::getDataSize() {
return getInt32(36);
}
void UUID_ProtectionSystemSpecificHeader::setData(std::string newData) {
setInt32(newData.size(), 36);
for (unsigned int i = 0; i < newData.size(); i++) {
setInt8(newData[i], 40 + i);
}
}
std::string UUID_ProtectionSystemSpecificHeader::getData() {
std::string result;
for (unsigned int i = 0; i < getDataSize(); i++) {
result += getInt8(40 + i);
}
return result;
}
std::string UUID_ProtectionSystemSpecificHeader::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[d08a4f18-10f3-4a82-b6c8-32d8aba183d3] Protection System Specific Header Box (" << boxedSize() << ")" << std::endl;
r << std::string(indent + 2, ' ') << "Version: " << getVersion() << std::endl;
r << std::string(indent + 2, ' ') << "Flags: " << getFlags() << std::endl;
r << std::string(indent + 2, ' ') << "System ID: " << getSystemID() << std::endl;
r << std::string(indent + 2, ' ') << "Data Size: " << getDataSize() << std::endl;
r << std::string(indent + 2, ' ') << "Data: " << getData().size() << " bytes of data." << std::endl;
return r.str();
}
SINF::SINF() {
memcpy(data + 4, "sinf", 4);
}
void SINF::setEntry(Box & newEntry, uint32_t no) {
if (no > 4) {
return;
}
int tempLoc = 0;
for (unsigned int i = 0; i < no; i++) {
tempLoc += Box(getBox(tempLoc).asBox(), false).boxedSize();
}
setBox(newEntry, tempLoc);
}
Box & SINF::getEntry(uint32_t no) {
static Box ret = Box((char *)"\000\000\000\010erro", false);
if (no > 4) {
return ret;
}
int tempLoc = 0;
for (unsigned int i = 0; i < no; i++) {
tempLoc += getBoxLen(tempLoc);
}
return getBox(tempLoc);
}
std::string SINF::toPrettyString(uint32_t indent) {
std::stringstream r;
std::cerr << payloadOffset << std::endl;
r << std::string(indent, ' ') << "[sinf] Protection Scheme Info Box (" << boxedSize() << ")" << std::endl;
for (int i = 0; i < 4; i++) {
if (!getEntry(i).isType("erro")) {
r << getEntry(i).toPrettyString(indent + 2);
}
}
r << std::endl;
return r.str();
}
FRMA::FRMA(const std::string & originalFormat) {
memcpy(data + 4, "frma", 4);
setOriginalFormat(originalFormat);
}
void FRMA::setOriginalFormat(const std::string & newFormat) {
for (unsigned int i = 0; i < 4; i++) {
if (i < newFormat.size()) {
setInt8(newFormat[i], i);
} else {
setInt8(0x00, i);
}
}
}
std::string FRMA::getOriginalFormat() {
return std::string(payload(), 4);
}
std::string FRMA::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[frma] Original Format Box (" << boxedSize() << ")" << std::endl;
r << std::string(indent + 2, ' ') << "Original Format: " << getOriginalFormat() << std::endl;
return r.str();
}
SCHM::SCHM(uint32_t schemeType, uint32_t schemeVersion){
memcpy(data + 4, "schm", 4);
setSchemeType(schemeType);
setSchemeVersion(schemeVersion);
}
void SCHM::setSchemeType(uint32_t newType) {
setInt32(htonl(newType), 4);
}
uint32_t SCHM::getSchemeType() {
return ntohl(getInt32(4));
}
void SCHM::setSchemeVersion(uint32_t newVersion) {
setInt32(htonl(newVersion), 8);
}
uint32_t SCHM::getSchemeVersion() {
return ntohl(getInt32(8));
}
void SCHM::setSchemeURI(std::string newURI) {
setFlags(getFlags() | 0x01);
setString(newURI, 12);
}
std::string SCHM::getSchemeURI() {
if (getFlags() & 0x01) {
return getString(12);
}
return "";
}
std::string SCHM::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[schm] Scheme Type Box (" << boxedSize() << ")" << std::endl;
char tmpStr[10];
int tmpInt = getSchemeType();
sprintf(tmpStr, "%.4s", (char *)&tmpInt);
r << std::string(indent + 2, ' ') << "SchemeType: " << std::string(tmpStr, 4) << std::endl;
r << std::string(indent + 2, ' ') << "SchemeVersion: 0x" << std::hex << std::setw(8) << std::setfill('0') << getSchemeVersion() << std::dec << std::endl;
if (getFlags() & 0x01) {
r << std::string(indent + 2, ' ') << "SchemeURI: " << getSchemeURI() << std::endl;
}
return r.str();
}
SCHI::SCHI() {
memcpy(data + 4, "schi", 4);
}
void SCHI::setContent(Box & newContent) {
setBox(newContent, 0);
}
Box & SCHI::getContent() {
return getBox(0);
}
std::string SCHI::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[schi] Scheme Information Box (" << boxedSize() << ")" << std::endl;
r << getContent().toPrettyString(indent + 2);
return r.str();
}
}
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