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mistserver/lib/mp4.cpp
Erik Zandvliet 503f63af2b added the avcC box
2012-10-29 12:14:11 +01:00

1649 lines
56 KiB
C++
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#include <stdlib.h> //for malloc and free
#include <string.h> //for memcpy
#include <arpa/inet.h> //for htonl and friends
#include "mp4.h"
#include "json.h"
#define Int64 long long int
/// Contains all MP4 format related code.
namespace MP4{
/// Creates a new box, optionally using the indicated pointer for storage.
/// If manage is set to true, the pointer will be realloc'ed when the box needs to be resized.
/// If the datapointer is NULL, manage is assumed to be true even if explicitly given as false.
/// If managed, the pointer will be free'd upon destruction.
Box::Box(char * datapointer, bool manage){
data = datapointer;
managed = manage;
payloadOffset = 8;
if (data == 0){
clear();
}else{
data_size = ntohl(((int*)data)[0]);
}
}
/// If managed, this will free the data pointer.
Box::~Box(){
if (managed && data != 0){
free(data);
data = 0;
}
}
/// Returns the values at byte positions 4 through 7.
std::string Box::getType() {
return std::string(data+4,4);
}
/// Returns true if the given 4-byte boxtype is equal to the values at byte positions 4 through 7.
bool Box::isType( char* boxType ) {
return !memcmp(boxType, data + 4, 4);
}
/// Reads out a whole box (if possible) from newData, copying to the internal data storage and removing from the input string.
/// \returns True on success, false otherwise.
bool Box::read(std::string & newData){
if (!managed){return false;}
if (newData.size() > 4){
payloadOffset = 8;
long long int size = ntohl( ((int*)newData.c_str())[0] );
if( size == 1) {
if( newData.size() > 16) {
size = 0 + ntohl( ((int*)newData.c_str())[2] );
size <<= 32;
size += ntohl( ((int*)newData.c_str())[3] );
payloadOffset = 16;
} else {
return false;
}
}
if (newData.size() >= size){
void * ret = malloc(size);
if (!ret){return false;}
free(data);
data = (char*)ret;
memcpy(data, newData.c_str(), size);
newData.erase( 0, size );
return true;
}
}
return false;
}
/// Returns the total boxed size of this box, including the header.
long long int Box::boxedSize() {
if( payloadOffset == 16 ) {
return ((long long int)ntohl( ((int*)data)[2] ) << 32) + ntohl( ((int*)data)[3] );
}
return ntohl( ((int*)data)[0] );
}
/// Retruns the size of the payload of thix box, excluding the header.
/// This value is defined as boxedSize() - 8.
long long int Box::payloadSize() {
return boxedSize() - payloadOffset;
}
/// Returns a copy of the data pointer.
char * Box::asBox() {
return data;
}
char * Box::payload() {
return data + payloadOffset;
}
/// Makes this box managed if it wasn't already, resetting the internal storage to 8 bytes (the minimum).
/// If this box wasn't managed, the original data is left intact - otherwise it is free'd.
/// If it was somehow impossible to allocate 8 bytes (should never happen), this will cause segfaults later.
void Box::clear() {
if (data && managed){free(data);}
managed = true;
payloadOffset = 8;
data = (char*)malloc(8);
if (data){
data_size = 8;
((int*)data)[0] = htonl(data_size);
}else{
data_size = 0;
}
}
/// Attempts to typecast this Box to a more specific type and call the toPrettyString() function of that type.
/// If this failed, it will print out a message saying pretty-printing is not implemented for <boxtype>.
std::string Box::toPrettyString(int indent){
switch (ntohl( *((int*)(data+4)) )){ //type is at this address
case 0x6D666864: return ((MFHD*)this)->toPrettyString(indent); break;
case 0x6D6F6F66: return ((MOOF*)this)->toPrettyString(indent); break;
case 0x61627374: return ((ABST*)this)->toPrettyString(indent); break;
case 0x61667274: return ((AFRT*)this)->toPrettyString(indent); break;
case 0x61667261: return ((AFRA*)this)->toPrettyString(indent); break;
case 0x61737274: return ((ASRT*)this)->toPrettyString(indent); break;
case 0x7472756E: return ((TRUN*)this)->toPrettyString(indent); break;
case 0x74726166: return ((TRAF*)this)->toPrettyString(indent); break;
case 0x74666864: return ((TFHD*)this)->toPrettyString(indent); break;
case 0x61766343: return ((AVCC*)this)->toPrettyString(indent); break;
default: return std::string(indent, ' ')+"Unimplemented pretty-printing for box "+std::string(data+4,4)+"\n"; break;
}
}
/// Sets the 8 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Fails silently if resizing failed.
void Box::setInt8( char newData, size_t index ) {
index += payloadOffset;
if (index >= boxedSize()){
if (!reserve(index, 0, 1)){return;}
}
data[index] = newData;
}
/// Gets the 8 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Returns zero if resizing failed.
char Box::getInt8( size_t index ) {
index += payloadOffset;
if (index >= boxedSize()){
if (!reserve(index, 0, 1)){return 0;}
setInt8(0, index-payloadOffset);
}
return data[index];
}
/// Sets the 16 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Fails silently if resizing failed.
void Box::setInt16( short newData, size_t index ) {
index += payloadOffset;
if (index+1 >= boxedSize()){
if (!reserve(index, 0, 2)){return;}
}
newData = htons( newData );
memcpy( data + index, (char*)&newData, 2 );
}
/// Gets the 16 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Returns zero if resizing failed.
short Box::getInt16( size_t index ) {
index += payloadOffset;
if (index+1 >= boxedSize()){
if (!reserve(index, 0, 2)){return 0;}
setInt16(0, index-payloadOffset);
}
short result;
memcpy( (char*)&result, data + index, 2 );
return ntohs(result);
}
/// Sets the 24 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Fails silently if resizing failed.
void Box::setInt24( long newData, size_t index ) {
index += payloadOffset;
if (index+2 >= boxedSize()){
if (!reserve(index, 0, 3)){return;}
}
data[index] = (newData & 0x00FF0000) >> 16;
data[index+1] = (newData & 0x0000FF00) >> 8;
data[index+2] = (newData & 0x000000FF);
}
/// Gets the 24 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Returns zero if resizing failed.
long Box::getInt24( size_t index ) {
index += payloadOffset;
if (index+2 >= boxedSize()){
if (!reserve(index, 0, 3)){return 0;}
setInt24(0, index-payloadOffset);
}
long result = data[index];
result <<= 8;
result += data[index+1];
result <<= 8;
result += data[index+2];
return result;
}
/// Sets the 32 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Fails silently if resizing failed.
void Box::setInt32( long newData, size_t index ) {
index += payloadOffset;
if (index+3 >= boxedSize()){
if (!reserve(index, 0, 4)){return;}
}
newData = htonl( newData );
memcpy( data + index, (char*)&newData, 4 );
}
/// Gets the 32 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Returns zero if resizing failed.
long Box::getInt32( size_t index ) {
index += payloadOffset;
if (index+3 >= boxedSize()){
if (!reserve(index, 0, 4)){return 0;}
setInt32(0, index-payloadOffset);
}
long result;
memcpy( (char*)&result, data + index, 4 );
return ntohl(result);
}
/// Sets the 64 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Fails silently if resizing failed.
void Box::setInt64( Int64 newData, size_t index ) {
index += payloadOffset;
if (index+7 >= boxedSize()){
if (!reserve(index, 0, 8)){return;}
}
((int*)(data+index))[0] = htonl((int)(newData>>32));
((int*)(data+index))[1] = htonl((int)(newData & 0xFFFFFFFF));
}
/// Gets the 64 bits integer at the given index.
/// Attempts to resize the data pointer if the index is out of range.
/// Returns zero if resizing failed.
Int64 Box::getInt64( size_t index ) {
index += payloadOffset;
if (index+7 >= boxedSize()){
if (!reserve(index, 0, 8)){return 0;}
setInt64(0, index-payloadOffset);
}
Int64 result = ntohl( ((int*)(data+index))[0] );
result <<= 32;
result += ntohl( ((int*)(data+index))[1] );
return result;
}
/// Sets the NULL-terminated string at the given index.
/// Will attempt to resize if the string doesn't fit.
/// Fails silently if resizing failed.
void Box::setString(std::string newData, size_t index ) {
setString( (char*)newData.c_str(), newData.size(), index );
}
/// Sets the NULL-terminated string at the given index.
/// Will attempt to resize if the string doesn't fit.
/// Fails silently if resizing failed.
void Box::setString(char* newData, size_t size, size_t index ) {
index += payloadOffset;
if (index >= boxedSize()){
if (!reserve(index, 0, 1)){return;}
data[index] = 0;
}
if (getStringLen(index) != size){
if (!reserve(index, getStringLen(index)+1, size+1)){return;}
}
memcpy(data + index, newData, size+1);
}
/// Gets the NULL-terminated string at the given index.
/// Will attempt to resize if the string is out of range.
/// Returns null if resizing failed.
char * Box::getString(size_t index){
index += payloadOffset;
if (index >= boxedSize()){
if (!reserve(index, 0, 1)){return 0;}
data[index] = 0;
}
return data+index;
}
/// Returns the length of the NULL-terminated string at the given index.
/// Returns 0 if out of range.
size_t Box::getStringLen(size_t index){
index += payloadOffset;
if (index >= boxedSize()){return 0;}
return strlen(data+index);
}
/// Gets a reference to the box at the given index.
/// Do not store or copy this reference, for there will be raptors.
/// Will attempt to resize if out of range.
/// Returns an 8-byte error box if resizing failed.
Box & Box::getBox(size_t index){
static Box retbox;
index += payloadOffset;
if (index+8 > boxedSize()){
if (!reserve(index, 0, 8)){
retbox = Box((char*)"\000\000\000\010erro", false);
return retbox;
}
memcpy(data+index, "\000\000\000\010erro", 8);
}
retbox = Box(data+index, false);
return retbox;
}
/// Returns the size of the box at the given position.
/// Returns undefined values if there is no box at the given position.
/// Returns 0 if out of range.
size_t Box::getBoxLen(size_t index){
if (index+payloadOffset+8 > boxedSize()){return 0;}
return getBox(index).boxedSize();
}
/// Replaces the existing box at the given index by the new box newEntry.
/// Will resize if needed, will reserve new space if out of range.
void Box::setBox(Box & newEntry, size_t index){
int oldlen = getBoxLen(index);
int newlen = newEntry.boxedSize();
if (oldlen != newlen && !reserve(index+payloadOffset, oldlen, newlen)){return;}
memcpy(data+index+payloadOffset, newEntry.asBox(), newlen);
}
/// Attempts to reserve enough space for wanted bytes of data at given position, where current bytes of data is now reserved.
/// This will move any existing data behind the currently reserved space to the proper location after reserving.
/// \returns True on success, false otherwise.
bool Box::reserve(size_t position, size_t current, size_t wanted){
if (current == wanted){return true;}
if (position > boxedSize()){
wanted += position - boxedSize();
}
if (current < wanted){
//make bigger
if (boxedSize() + (wanted-current) > data_size){
//realloc if managed, otherwise fail
if (!managed){return false;}
void * ret = realloc(data, boxedSize() + (wanted-current));
if (!ret){return false;}
data = (char*)ret;
memset(data+boxedSize(), 0, wanted-current);//initialize to 0
data_size = boxedSize() + (wanted-current);
}
}
//move data behind, if any
if (boxedSize() > (position+current)){
memmove(data+position+wanted, data+position+current, boxedSize() - (position+current));
}
//calculate and set new size
if (payloadOffset != 16) {
int newSize = boxedSize() + (wanted-current);
((int*)data)[0] = htonl(newSize);
}
return true;
}
ABST::ABST( ) {
memcpy(data + 4, "abst", 4);
setVersion( 0 );
setFlags( 0 );
setBootstrapinfoVersion( 0 );
setProfile( 0 );
setLive( 1 );
setUpdate( 0 );
setTimeScale( 1000 );
setCurrentMediaTime( 0 );
setSmpteTimeCodeOffset( 0 );
std::string empty;
setMovieIdentifier( empty );
setInt8(0, 30);//set serverentrycount to 0
setInt8(0, 31);//set qualityentrycount to 0
setDrmData( empty );
setMetaData( empty );
}
void ABST::setVersion(char newVersion){setInt8(newVersion, 0);}
char ABST::getVersion(){return getInt8(0);}
void ABST::setFlags(long newFlags){setInt24(newFlags, 1);}
long ABST::getFlags(){return getInt24(1);}
void ABST::setBootstrapinfoVersion(long newVersion){setInt32(newVersion, 4);}
long ABST::getBootstrapinfoVersion(){return getInt32(4);}
void ABST::setProfile(char newProfile){
//profile = bit 1 and 2 of byte 8.
setInt8((getInt8(8) & 0x3F) + ((newProfile & 0x03) << 6), 8);
}
char ABST::getProfile(){return (getInt8(8) & 0xC0);};
void ABST::setLive(bool newLive){
//live = bit 4 of byte 8.
setInt8((getInt8(8) & 0xDF) + (newLive ? 0x10 : 0 ), 8);
}
bool ABST::getLive(){return (getInt8(8) & 0x10);}
void ABST::setUpdate(bool newUpdate) {
//update = bit 5 of byte 8.
setInt8((getInt8(8) & 0xEF) + (newUpdate ? 0x08 : 0), 8);
}
bool ABST::getUpdate(){return (getInt8(8) & 0x08);}
void ABST::setTimeScale(long newScale){setInt32(newScale, 9);}
long ABST::getTimeScale(){return getInt32(9);}
void ABST::setCurrentMediaTime(Int64 newTime){setInt64(newTime, 13);}
Int64 ABST::getCurrentMediaTime(){return getInt64(13);}
void ABST::setSmpteTimeCodeOffset(Int64 newTime){setInt64(newTime, 21);}
Int64 ABST::getSmpteTimeCodeOffset(){return getInt64(21);}
void ABST::setMovieIdentifier(std::string & newIdentifier){setString(newIdentifier, 29);}
char* ABST::getMovieIdentifier(){return getString(29);}
long ABST::getServerEntryCount(){
int countLoc = 29 + getStringLen(29)+1;
return getInt8(countLoc);
}
void ABST::setServerEntry(std::string & newEntry, long no){
int countLoc = 29 + getStringLen(29)+1;
int tempLoc = countLoc+1;
//attempt to reach the wanted position
int i;
for (i = 0; i < getInt8(countLoc) && i < no; ++i){
tempLoc += getStringLen(tempLoc)+1;
}
//we are now either at the end, or at the right position
//let's reserve any unreserved space...
if (no+1 > getInt8(countLoc)){
int amount = no+1-getInt8(countLoc);
if(!reserve(payloadOffset+tempLoc, 0, amount)){return;};
memset(data+payloadOffset+tempLoc, 0, amount);
setInt8(no+1, countLoc);//set new qualityEntryCount
tempLoc += no-i;
}
//now, tempLoc is at position for string number no, and we have at least 1 byte reserved.
setString(newEntry, tempLoc);
}
///\return Empty string if no > serverEntryCount(), serverEntry[no] otherwise.
const char* ABST::getServerEntry(long no){
if (no+1 > getServerEntryCount()){return "";}
int tempLoc = 29+getStringLen(29)+1 + 1;//position of first entry
for (int i = 0; i < no; i++){tempLoc += getStringLen(tempLoc)+1;}
return getString(tempLoc);
}
long ABST::getQualityEntryCount(){
int countLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){countLoc += getStringLen(countLoc)+1;}
return getInt8(countLoc);
}
void ABST::setQualityEntry(std::string & newEntry, long no){
int countLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){countLoc += getStringLen(countLoc)+1;}
int tempLoc = countLoc+1;
//attempt to reach the wanted position
int i;
for (i = 0; i < getInt8(countLoc) && i < no; ++i){
tempLoc += getStringLen(tempLoc)+1;
}
//we are now either at the end, or at the right position
//let's reserve any unreserved space...
if (no+1 > getInt8(countLoc)){
int amount = no+1-getInt8(countLoc);
if(!reserve(payloadOffset+tempLoc, 0, amount)){return;};
memset(data+payloadOffset+tempLoc, 0, amount);
setInt8(no+1, countLoc);//set new qualityEntryCount
tempLoc += no-i;
}
//now, tempLoc is at position for string number no, and we have at least 1 byte reserved.
setString(newEntry, tempLoc);
}
const char* ABST::getQualityEntry(long no){
if (no > getQualityEntryCount()){return "";}
int tempLoc = 29+getStringLen(29)+1 + 1;//position of serverentries;
for (int i = 0; i < getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc += 1;//first qualityentry
for (int i = 0; i < no; i++){tempLoc += getStringLen(tempLoc)+1;}
return getString(tempLoc);
}
void ABST::setDrmData( std::string newDrm ) {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
setString(newDrm, tempLoc);
}
char* ABST::getDrmData() {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
return getString(tempLoc);
}
void ABST::setMetaData( std::string newMetaData ) {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc += getStringLen(tempLoc)+1;
setString(newMetaData, tempLoc);
}
char* ABST::getMetaData() {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc += getStringLen(tempLoc)+1;
return getString(tempLoc);
}
long ABST::getSegmentRunTableCount(){
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc+=getStringLen(tempLoc)+1;//DrmData
tempLoc+=getStringLen(tempLoc)+1;//MetaData
return getInt8(tempLoc);
}
void ABST::setSegmentRunTable( ASRT & newSegment, long no ) {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc+=getStringLen(tempLoc)+1;//DrmData
tempLoc+=getStringLen(tempLoc)+1;//MetaData
int countLoc = tempLoc;
tempLoc++;//skip segmentRuntableCount
//attempt to reach the wanted position
int i;
for (i = 0; i < getInt8(countLoc) && i < no; ++i){tempLoc += getBoxLen(tempLoc);}
//we are now either at the end, or at the right position
//let's reserve any unreserved space...
if (no+1 > getInt8(countLoc)){
int amount = no+1-getInt8(countLoc);
if(!reserve(payloadOffset+tempLoc, 0, amount*8)){return;};
//set empty erro boxes as contents
for (int j = 0; j < amount; ++j){
memcpy(data+payloadOffset+tempLoc+j*8, "\000\000\000\010erro", 8);
}
setInt8(no+1, countLoc);//set new count
tempLoc += (no-i)*8;
}
//now, tempLoc is at position for string number no, and we have at least an erro box reserved.
setBox(newSegment, tempLoc);
}
ASRT & ABST::getSegmentRunTable( long no ) {
static Box result;
if( no > getSegmentRunTableCount() ) {
static Box res;
return (ASRT&)res;
}
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc+=getStringLen(tempLoc)+1;//DrmData
tempLoc+=getStringLen(tempLoc)+1;//MetaData
int countLoc = tempLoc;
tempLoc++;//segmentRuntableCount
for (int i = 0; i < no; ++i){tempLoc += getBoxLen(tempLoc);}
return (ASRT&)getBox(tempLoc);
}
long ABST::getFragmentRunTableCount() {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc+=getStringLen(tempLoc)+1;//DrmData
tempLoc+=getStringLen(tempLoc)+1;//MetaData
for (int i = getInt8(tempLoc++); i != 0; --i){tempLoc += getBoxLen(tempLoc);}
return getInt8( tempLoc );
}
void ABST::setFragmentRunTable( AFRT & newFragment, long no ) {
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc+=getStringLen(tempLoc)+1;//DrmData
tempLoc+=getStringLen(tempLoc)+1;//MetaData
for (int i = getInt8(tempLoc++); i != 0; --i){tempLoc += getBoxLen(tempLoc);}
int countLoc = tempLoc;
tempLoc++;
//attempt to reach the wanted position
int i;
for (i = 0; i < getInt8(countLoc) && i < no; ++i){tempLoc += getBoxLen(tempLoc);}
//we are now either at the end, or at the right position
//let's reserve any unreserved space...
if (no+1 > getInt8(countLoc)){
int amount = no+1-getInt8(countLoc);
if(!reserve(payloadOffset+tempLoc, 0, amount*8)){return;};
//set empty erro boxes as contents
for (int j = 0; j < amount; ++j){
memcpy(data+payloadOffset+tempLoc+j*8, "\000\000\000\010erro", 8);
}
setInt8(no+1, countLoc);//set new count
tempLoc += (no-i)*8;
}
//now, tempLoc is at position for string number no, and we have at least 1 byte reserved.
setBox(newFragment, tempLoc);
}
AFRT & ABST::getFragmentRunTable( long no ) {
static Box result;
if (no >= getFragmentRunTableCount()){
static Box res;
return (AFRT&)res;
}
long tempLoc = 29 + getStringLen(29)+1 + 1;
for (int i = 0; i< getServerEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc++;
for (int i = 0; i< getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
tempLoc+=getStringLen(tempLoc)+1;//DrmData
tempLoc+=getStringLen(tempLoc)+1;//MetaData
for (int i = getInt8(tempLoc++); i != 0; --i){tempLoc += getBoxLen(tempLoc);}
int countLoc = tempLoc;
tempLoc++;
for (int i = 0; i < no; i++){tempLoc += getBoxLen(tempLoc);}
return (AFRT&)getBox(tempLoc);
}
std::string ABST::toPrettyString( long indent ) {
std::stringstream r;
r << std::string(indent, ' ') << "[abst] Bootstrap Info (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version " << (int)getVersion() << std::endl;
r << std::string(indent+1, ' ') << "BootstrapinfoVersion " << getBootstrapinfoVersion() << std::endl;
r << std::string(indent+1, ' ') << "Profile " << (int)getProfile() << std::endl;
if( getLive() ) {
r << std::string(indent+1, ' ' ) << "Live" << std::endl;
}else{
r << std::string(indent+1, ' ' ) << "Recorded" << std::endl;
}
if( getUpdate() ) {
r << std::string(indent+1, ' ') << "Update" << std::endl;
} else {
r << std::string(indent+1, ' ') << "Replacement or new table" << std::endl;
}
r << std::string(indent+1, ' ') << "Timescale " << getTimeScale() << std::endl;
r << std::string(indent+1, ' ') << "CurrMediaTime " << getCurrentMediaTime() << std::endl;
r << std::string(indent+1, ' ') << "SmpteTimeCodeOffset " << getSmpteTimeCodeOffset() << std::endl;
r << std::string(indent+1, ' ') << "MovieIdentifier " << getMovieIdentifier() << std::endl;
r << std::string(indent+1, ' ') << "ServerEntryTable (" << getServerEntryCount() << ")" << std::endl;
for( int i = 0; i < getServerEntryCount(); i++ ) {
r << std::string(indent+2, ' ') << i << ": " << getServerEntry(i) << std::endl;
}
r << std::string(indent+1, ' ') << "QualityEntryTable (" << getQualityEntryCount() << ")" << std::endl;
for( int i = 0; i < getQualityEntryCount(); i++ ) {
r << std::string(indent+2, ' ') << i << ": " << getQualityEntry(i) << std::endl;
}
r << std::string(indent+1, ' ') << "DrmData " << getDrmData() << std::endl;
r << std::string(indent+1, ' ') << "MetaData " << getMetaData() << std::endl;
r << std::string(indent+1, ' ') << "SegmentRunTableEntries (" << getSegmentRunTableCount() << ")" << std::endl;
for( uint32_t i = 0; i < getSegmentRunTableCount(); i++ ) {
r << ((Box)getSegmentRunTable(i)).toPrettyString(indent+2);
}
r << std::string(indent+1, ' ')+"FragmentRunTableEntries (" << getFragmentRunTableCount() << ")" << std::endl;
for( uint32_t i = 0; i < getFragmentRunTableCount(); i++ ) {
r << ((Box)getFragmentRunTable(i)).toPrettyString(indent+2);
}
return r.str();
}
AFRT::AFRT(){
memcpy(data + 4, "afrt", 4);
setVersion(0);
setUpdate(0);
setTimeScale(1000);
}
void AFRT::setVersion(char newVersion){setInt8(newVersion, 0);}
long AFRT::getVersion(){return getInt8(0);}
void AFRT::setUpdate(long newUpdate){setInt24(newUpdate, 1);}
long AFRT::getUpdate(){return getInt24(1);}
void AFRT::setTimeScale(long newScale){setInt32(newScale, 4);}
long AFRT::getTimeScale(){return getInt32(4);}
long AFRT::getQualityEntryCount(){return getInt8(8);}
void AFRT::setQualityEntry(std::string & newEntry, long no){
int countLoc = 8;
int tempLoc = countLoc+1;
//attempt to reach the wanted position
int i;
for (i = 0; i < getQualityEntryCount() && i < no; ++i){
tempLoc += getStringLen(tempLoc)+1;
}
//we are now either at the end, or at the right position
//let's reserve any unreserved space...
if (no+1 > getQualityEntryCount()){
int amount = no+1-getQualityEntryCount();
if(!reserve(payloadOffset+tempLoc, 0, amount)){return;};
memset(data+payloadOffset+tempLoc, 0, amount);
setInt8(no+1, countLoc);//set new qualityEntryCount
tempLoc += no-i;
}
//now, tempLoc is at position for string number no, and we have at least 1 byte reserved.
setString(newEntry, tempLoc);
}
const char* AFRT::getQualityEntry(long no){
if (no+1 > getQualityEntryCount()){return "";}
int tempLoc = 9;//position of first quality entry
for (int i = 0; i < no; i++){tempLoc += getStringLen(tempLoc)+1;}
return getString(tempLoc);
}
long AFRT::getFragmentRunCount(){
int tempLoc = 9;
for (int i = 0; i < getQualityEntryCount(); ++i){tempLoc += getStringLen(tempLoc)+1;}
return getInt32(tempLoc);
}
void AFRT::setFragmentRun( afrt_runtable newRun, long no ) {
int tempLoc = 9;
for (int i = 0; i < getQualityEntryCount(); ++i){
tempLoc += getStringLen(tempLoc)+1;
}
int countLoc = tempLoc;
tempLoc += 4;
for (int i = 0; i < no; i++){
if (i+1 > getInt32(countLoc)){
setInt32(0,tempLoc);
setInt64(0,tempLoc+4);
setInt32(1,tempLoc+12);
}
if (getInt32(tempLoc+12) == 0){tempLoc += 17;}else{tempLoc += 16;}
}
setInt32(newRun.firstFragment,tempLoc);
setInt64(newRun.firstTimestamp,tempLoc+4);
setInt32(newRun.duration,tempLoc+12);
if (newRun.duration == 0){
setInt8(newRun.discontinuity,tempLoc+16);
}
if (getInt32(countLoc) < no+1){setInt32(no+1, countLoc);}
}
afrt_runtable AFRT::getFragmentRun( long no ) {
afrt_runtable res;
if( no > getFragmentRunCount() ){return res;}
int tempLoc = 9;
for( int i = 0; i < getQualityEntryCount(); i++ ){
tempLoc += getStringLen(tempLoc)+1;
}
int countLoc = tempLoc;
tempLoc += 4;
for (int i = 0; i < no; i++){
if (getInt32(tempLoc+12) == 0){tempLoc += 17;}else{tempLoc += 16;}
}
res.firstFragment = getInt32(tempLoc);
res.firstTimestamp = getInt64(tempLoc+4);
res.duration = getInt32(tempLoc+12);
if( res.duration ) {
res.discontinuity = getInt8(tempLoc+16);
} else {
res.discontinuity = 0;
}
return res;
}
std::string AFRT::toPrettyString(int indent){
std::stringstream r;
r << std::string(indent, ' ') << "[afrt] Fragment Run Table (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version " << (int)getVersion() << std::endl;
if (getUpdate()){
r << std::string(indent+1, ' ') << "Update" << std::endl;
}else{
r << std::string(indent+1, ' ') << "Replacement or new table" << std::endl;
}
r << std::string(indent+1, ' ') << "Timescale " << getTimeScale() << std::endl;
r << std::string(indent+1, ' ') << "QualitySegmentUrlModifiers (" << getQualityEntryCount() << ")" << std::endl;
for( int i = 0; i < getQualityEntryCount(); i++ ) {
r << std::string(indent+2, ' ') << i << ": " << getQualityEntry(i) << std::endl;
}
r << std::string(indent+1, ' ') << "FragmentRunEntryTable (" << getFragmentRunCount() << ")" << std::endl;
for( int i = 0; i < getFragmentRunCount(); i ++ ) {
afrt_runtable myRun = getFragmentRun(i);
if (myRun.duration){
r << std::string(indent+2, ' ') << i << ": " << myRun.firstFragment << " is at " << ((double)myRun.firstTimestamp / (double)getTimeScale()) << "s, " << ((double)myRun.duration / (double)getTimeScale()) << "s per fragment." << std::endl;
}else{
r << std::string(indent+2, ' ') << i << ": " << myRun.firstFragment << " is at " << ((double)myRun.firstTimestamp / (double)getTimeScale()) << "s, discontinuity type " << myRun.discontinuity << std::endl;
}
}
return r.str();
}
ASRT::ASRT(){
memcpy(data + 4, "asrt", 4);
setVersion( 0 );
setUpdate( 0 );
}
void ASRT::setVersion( char newVersion ) {
setInt8( newVersion, 0 );
}
long ASRT::getVersion(){return getInt8(0);}
void ASRT::setUpdate( long newUpdate ) {
setInt24( newUpdate, 1 );
}
long ASRT::getUpdate(){return getInt24(1);}
long ASRT::getQualityEntryCount(){
return getInt8(4);
}
void ASRT::setQualityEntry(std::string & newEntry, long no){
int countLoc = 4;
int tempLoc = countLoc+1;
//attempt to reach the wanted position
int i;
for (i = 0; i < getQualityEntryCount() && i < no; ++i){
tempLoc += getStringLen(tempLoc)+1;
}
//we are now either at the end, or at the right position
//let's reserve any unreserved space...
if (no+1 > getQualityEntryCount()){
int amount = no+1-getQualityEntryCount();
if(!reserve(payloadOffset+tempLoc, 0, amount)){return;};
memset(data+payloadOffset+tempLoc, 0, amount);
setInt8(no+1, countLoc);//set new qualityEntryCount
tempLoc += no-i;
}
//now, tempLoc is at position for string number no, and we have at least 1 byte reserved.
setString(newEntry, tempLoc);
}
const char* ASRT::getQualityEntry(long no){
if (no > getQualityEntryCount()){return "";}
int tempLoc = 5;//position of qualityentry count;
for (int i = 0; i < no; i++){tempLoc += getStringLen(tempLoc)+1;}
return getString(tempLoc);
}
long ASRT::getSegmentRunEntryCount() {
int tempLoc = 5;//position of qualityentry count;
for (int i = 0; i < getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
return getInt32(tempLoc);
}
void ASRT::setSegmentRun( long firstSegment, long fragmentsPerSegment, long no ) {
int tempLoc = 5;//position of qualityentry count;
for (int i = 0; i < getQualityEntryCount(); i++){tempLoc += getStringLen(tempLoc)+1;}
int countLoc = tempLoc;
tempLoc += 4 + no*8;
if (no+1 > getInt32(countLoc)){
setInt32(no+1, countLoc);//set new qualityEntryCount
}
setInt32(firstSegment,tempLoc);
setInt32(fragmentsPerSegment,tempLoc+4);
}
asrt_runtable ASRT::getSegmentRun( long no ) {
asrt_runtable res;
if (no >= getSegmentRunEntryCount()){return res;}
int tempLoc = 5;//position of qualityentry count;
for (int i = 0; i < getQualityEntryCount(); ++i){tempLoc += getStringLen(tempLoc)+1;}
int countLoc = tempLoc;
tempLoc += 4 + 8*no;
res.firstSegment = getInt32(tempLoc);
res.fragmentsPerSegment = getInt32(tempLoc+4);
return res;
}
std::string ASRT::toPrettyString(int indent){
std::stringstream r;
r << std::string(indent, ' ') << "[asrt] Segment Run Table (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version " << getVersion() << std::endl;
if (getUpdate()){
r << std::string(indent+1, ' ') << "Update" << std::endl;
}else{
r << std::string(indent+1, ' ') << "Replacement or new table" << std::endl;
}
r << std::string(indent+1, ' ') << "QualityEntryTable (" << getQualityEntryCount() << ")" << std::endl;
for( int i = 0; i < getQualityEntryCount(); i++ ) {
r << std::string(indent+2, ' ') << i << ": " << getQualityEntry(i) << std::endl;
}
r << std::string(indent+1, ' ') << "SegmentRunEntryTable (" << getSegmentRunEntryCount()<< ")" << std::endl;
for( int i = 0; i < getSegmentRunEntryCount(); i ++ ) {
r << std::string(indent+2, ' ') << i << ": First=" << getSegmentRun(i).firstSegment << ", FragmentsPerSegment=" << getSegmentRun(i).fragmentsPerSegment << std::endl;
}
return r.str();
}
MFHD::MFHD(){
memcpy(data + 4, "mfhd", 4);
setInt32(0,0);
}
void MFHD::setSequenceNumber(long newSequenceNumber){setInt32(newSequenceNumber, 4);}
long MFHD::getSequenceNumber(){return getInt32(4);}
std::string MFHD::toPrettyString( int indent ) {
std::stringstream r;
r << std::string(indent, ' ') << "[mfhd] Movie Fragment Header (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "SequenceNumber " << getSequenceNumber() << std::endl;
return r.str();
}
MOOF::MOOF(){
memcpy(data + 4, "moof", 4);
}
long MOOF::getContentCount() {
int res = 0;
int tempLoc = 0;
while (tempLoc < boxedSize()-8){
res++;
tempLoc += getBoxLen(tempLoc);
}
return res;
}
void MOOF::setContent(Box & newContent, long no){
int tempLoc = 0;
int contentCount = getContentCount();
for (int i = 0; i < no; i++){
if (i < contentCount){
tempLoc += getBoxLen(tempLoc);
} else {
if(!reserve(tempLoc, 0, (no - contentCount)*8)){return;};
memset(data+tempLoc, 0, (no - contentCount)*8);
tempLoc += (no - contentCount)*8;
break;
}
}
setBox(newContent, tempLoc);
}
Box & MOOF::getContent(long no){
static Box ret = Box((char*)"\000\000\000\010erro", false);
if (no > getContentCount()){return ret;}
int i = 0;
int tempLoc = 0;
while (i < no){
tempLoc += getBoxLen(tempLoc);
i++;
}
return getBox(tempLoc);
}
std::string MOOF::toPrettyString( int indent ) {
std::stringstream r;
r << std::string(indent, ' ') << "[moof] Movie Fragment Box (" << boxedSize() << ")" << std::endl;
Box curBox;
int tempLoc = 0;
int contentCount = getContentCount();
for( int i = 0; i < contentCount; i++ ) {
curBox = getContent(i);
r << curBox.toPrettyString(indent+1);
tempLoc += getBoxLen(tempLoc);
}
return r.str();
}
TRAF::TRAF(){
memcpy(data + 4, "traf", 4);
}
long TRAF::getContentCount() {
int res = 0;
int tempLoc = 0;
while (tempLoc < boxedSize()-8){
res++;
tempLoc += getBoxLen(tempLoc);
}
return res;
}
void TRAF::setContent(Box & newContent, long no){
int tempLoc = 0;
int contentCount = getContentCount();
for (int i = 0; i < no; i++){
if (i < contentCount){
tempLoc += getBoxLen(tempLoc);
} else {
if(!reserve(tempLoc, 0, (no - contentCount)*8)){return;};
memset(data+tempLoc, 0, (no - contentCount)*8);
tempLoc += (no - contentCount)*8;
break;
}
}
setBox(newContent, tempLoc);
}
Box & TRAF::getContent( long no ){
static Box ret = Box((char*)"\000\000\000\010erro", false);
if (no > getContentCount()){return ret;}
int i = 0;
int tempLoc = 0;
while (i < no){
tempLoc += getBoxLen(tempLoc);
i++;
}
return getBox(tempLoc);
}
std::string TRAF::toPrettyString( int indent ) {
std::stringstream r;
r << std::string(indent, ' ') << "[traf] Track Fragment Box (" << boxedSize() << ")" << std::endl;
Box curBox;
int tempLoc = 0;
int contentCount = getContentCount();
for( int i = 0; i < contentCount; i++ ) {
curBox = getContent(i);
r << curBox.toPrettyString(indent+1);
tempLoc += curBox.boxedSize();
}
return r.str();
}
TRUN::TRUN(){
memcpy(data + 4, "trun", 4);
}
void TRUN::setFlags(long newFlags){
setInt24(newFlags,1);
}
long TRUN::getFlags(){
return getInt24(1);
}
void TRUN::setDataOffset(long newOffset){
if (getFlags() & trundataOffset){
setInt32(newOffset, 8);
}
}
long TRUN::getDataOffset(){
if (getFlags() & trundataOffset){
return getInt32(8);
}else{
return 0;
}
}
void TRUN::setFirstSampleFlags(long newSampleFlags){
if (!(getFlags() & trunfirstSampleFlags)){return;}
if (getFlags() & trundataOffset){
setInt32(newSampleFlags, 12);
}else{
setInt32(newSampleFlags, 8);
}
}
long TRUN::getFirstSampleFlags(){
if (!(getFlags() & trunfirstSampleFlags)){return 0;}
if (getFlags() & trundataOffset){
return getInt32(12);
}else{
return getInt32(8);
}
}
long TRUN::getSampleInformationCount(){
return getInt32(4);
}
void TRUN::setSampleInformation(trunSampleInformation newSample, long no){
long flags = getFlags();
long sampInfoSize = 0;
if (flags & trunsampleDuration){sampInfoSize += 4;}
if (flags & trunsampleSize){sampInfoSize += 4;}
if (flags & trunsampleFlags){sampInfoSize += 4;}
if (flags & trunsampleOffsets){sampInfoSize += 4;}
long offset = 8;
if (flags & trundataOffset){offset += 4;}
if (flags & trunfirstSampleFlags){offset += 4;}
long innerOffset = 0;
if (flags & trunsampleDuration){
setInt32(newSample.sampleDuration, offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (flags & trunsampleSize){
setInt32(newSample.sampleSize, offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (flags & trunsampleFlags){
setInt32(newSample.sampleFlags, offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (flags & trunsampleOffsets){
setInt32(newSample.sampleOffset, offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (getSampleInformationCount() < no+1){
setInt32(no+1,4);
}
}
trunSampleInformation TRUN::getSampleInformation(long no){
trunSampleInformation ret;
ret.sampleDuration = 0;
ret.sampleSize = 0;
ret.sampleFlags = 0;
ret.sampleOffset = 0;
if (getSampleInformationCount() < no+1){return ret;}
long flags = getFlags();
long sampInfoSize = 0;
if (flags & trunsampleDuration){sampInfoSize += 4;}
if (flags & trunsampleSize){sampInfoSize += 4;}
if (flags & trunsampleFlags){sampInfoSize += 4;}
if (flags & trunsampleOffsets){sampInfoSize += 4;}
long offset = 8;
if (flags & trundataOffset){offset += 4;}
if (flags & trunfirstSampleFlags){offset += 4;}
long innerOffset = 0;
if (flags & trunsampleDuration){
ret.sampleDuration = getInt32(offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (flags & trunsampleSize){
ret.sampleSize = getInt32(offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (flags & trunsampleFlags){
ret.sampleFlags = getInt32(offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
if (flags & trunsampleOffsets){
ret.sampleOffset = getInt32(offset + no*sampInfoSize + innerOffset);
innerOffset += 4;
}
return ret;
}
std::string TRUN::toPrettyString(long indent){
std::stringstream r;
r << std::string(indent, ' ') << "[trun] Track Fragment Run (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version " << (int)getInt8(0) << std::endl;
long flags = getFlags();
r << std::string(indent+1, ' ') << "Flags";
if (flags & trundataOffset){r << " dataOffset";}
if (flags & trunfirstSampleFlags){r << " firstSampleFlags";}
if (flags & trunsampleDuration){r << " sampleDuration";}
if (flags & trunsampleSize){r << " sampleSize";}
if (flags & trunsampleFlags){r << " sampleFlags";}
if (flags & trunsampleOffsets){r << " sampleOffsets";}
r << std::endl;
if (flags & trundataOffset){r << std::string(indent+1, ' ') << "Data Offset " << getDataOffset() << std::endl;}
if (flags & trundataOffset){r << std::string(indent+1, ' ') << "Sample Flags" << prettySampleFlags(getFirstSampleFlags()) << std::endl;}
r << std::string(indent+1, ' ') << "SampleInformation (" << getSampleInformationCount() << "):" << std::endl;
for (int i = 0; i < getSampleInformationCount(); ++i){
r << std::string(indent+2, ' ') << "[" << i << "]" << std::endl;
trunSampleInformation samp = getSampleInformation(i);
if (flags & trunsampleDuration){
r << std::string(indent+2, ' ') << "Duration " << samp.sampleDuration << std::endl;
}
if (flags & trunsampleSize){
r << std::string(indent+2, ' ') << "Size " << samp.sampleSize << std::endl;
}
if (flags & trunsampleFlags){
r << std::string(indent+2, ' ') << "Flags " << prettySampleFlags(samp.sampleFlags) << std::endl;
}
if (flags & trunsampleOffsets){
r << std::string(indent+2, ' ') << "Offset " << samp.sampleOffset << std::endl;
}
}
return r.str();
}
std::string prettySampleFlags(long flag){
std::stringstream r;
if (flag & noIPicture){r << " noIPicture";}
if (flag & isIPicture){r << " isIPicture";}
if (flag & noDisposable){r << " noDisposable";}
if (flag & isDisposable){r << " isDisposable";}
if (flag & isRedundant){r << " isRedundant";}
if (flag & noRedundant){r << " noRedundant";}
if (flag & noKeySample){r << " noKeySample";}else{r << " isKeySample";}
return r.str();
}
TFHD::TFHD(){
memcpy(data + 4, "tfhd", 4);
}
void TFHD::setFlags(long newFlags){
setInt24(newFlags,1);
}
long TFHD::getFlags(){
return getInt24(1);
}
void TFHD::setTrackID(long newID){
setInt32(newID,4);
}
long TFHD::getTrackID(){
return getInt32(4);
}
void TFHD::setBaseDataOffset(long long newOffset){
if (getFlags() & tfhdBaseOffset){
setInt64(newOffset, 8);
}
}
long long TFHD::getBaseDataOffset(){
if (getFlags() & tfhdBaseOffset){
return getInt64(8);
}else{
return 0;
}
}
void TFHD::setSampleDescriptionIndex(long newIndex){
if (!(getFlags() & tfhdSampleDesc)){return;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
setInt32(newIndex, offset);
}
long TFHD::getSampleDescriptionIndex(){
if (!(getFlags() & tfhdSampleDesc)){return 0;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
return getInt32(offset);
}
void TFHD::setDefaultSampleDuration(long newDuration){
if (!(getFlags() & tfhdSampleDura)){return;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
if (getFlags() & tfhdSampleDesc){offset += 4;}
setInt32(newDuration, offset);
}
long TFHD::getDefaultSampleDuration(){
if (!(getFlags() & tfhdSampleDura)){return 0;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
if (getFlags() & tfhdSampleDesc){offset += 4;}
return getInt32(offset);
}
void TFHD::setDefaultSampleSize(long newSize){
if (!(getFlags() & tfhdSampleSize)){return;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
if (getFlags() & tfhdSampleDesc){offset += 4;}
if (getFlags() & tfhdSampleDura){offset += 4;}
setInt32(newSize, offset);
}
long TFHD::getDefaultSampleSize(){
if (!(getFlags() & tfhdSampleSize)){return 0;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
if (getFlags() & tfhdSampleDesc){offset += 4;}
if (getFlags() & tfhdSampleDura){offset += 4;}
return getInt32(offset);
}
void TFHD::setDefaultSampleFlags(long newFlags){
if (!(getFlags() & tfhdSampleFlag)){return;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
if (getFlags() & tfhdSampleDesc){offset += 4;}
if (getFlags() & tfhdSampleDura){offset += 4;}
if (getFlags() & tfhdSampleSize){offset += 4;}
setInt32(newFlags, offset);
}
long TFHD::getDefaultSampleFlags(){
if (!(getFlags() & tfhdSampleFlag)){return 0;}
int offset = 8;
if (getFlags() & tfhdBaseOffset){offset += 8;}
if (getFlags() & tfhdSampleDesc){offset += 4;}
if (getFlags() & tfhdSampleDura){offset += 4;}
if (getFlags() & tfhdSampleSize){offset += 4;}
return getInt32(offset);
}
std::string TFHD::toPrettyString(long indent){
std::stringstream r;
r << std::string(indent, ' ') << "[tfhd] Track Fragment Header (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version " << (int)getInt8(0) << std::endl;
long flags = getFlags();
r << std::string(indent+1, ' ') << "Flags";
if (flags & tfhdBaseOffset){r << " BaseOffset";}
if (flags & tfhdSampleDesc){r << " SampleDesc";}
if (flags & tfhdSampleDura){r << " SampleDura";}
if (flags & tfhdSampleSize){r << " SampleSize";}
if (flags & tfhdSampleFlag){r << " SampleFlag";}
if (flags & tfhdNoDuration){r << " NoDuration";}
r << std::endl;
r << std::string(indent+1, ' ') << "TrackID " << getTrackID() << std::endl;
if (flags & tfhdBaseOffset){r << std::string(indent+1, ' ') << "Base Offset " << getBaseDataOffset() << std::endl;}
if (flags & tfhdSampleDesc){r << std::string(indent+1, ' ') << "Sample Description Index " << getSampleDescriptionIndex() << std::endl;}
if (flags & tfhdSampleDura){r << std::string(indent+1, ' ') << "Default Sample Duration " << getDefaultSampleDuration() << std::endl;}
if (flags & tfhdSampleSize){r << std::string(indent+1, ' ') << "Default Same Size " << getDefaultSampleSize() << std::endl;}
if (flags & tfhdSampleFlag){r << std::string(indent+1, ' ') << "Default Sample Flags " << prettySampleFlags(getDefaultSampleFlags()) << std::endl;}
return r.str();
}
AFRA::AFRA(){
memcpy(data + 4, "afra", 4);
setInt32(0, 9);//entrycount = 0
setFlags(0);
}
void AFRA::setVersion(long newVersion){
setInt8(newVersion, 0);
}
long AFRA::getVersion(){
return getInt8(0);
}
void AFRA::setFlags(long newFlags){
setInt24(newFlags, 1);
}
long AFRA::getFlags(){
return getInt24(1);
}
void AFRA::setLongIDs(bool newVal){
if (newVal){
setInt8((getInt8(4) & 0x7F) + 0x80, 4);
}else{
setInt8((getInt8(4) & 0x7F), 4);
}
}
bool AFRA::getLongIDs(){
return getInt8(4) & 0x80;
}
void AFRA::setLongOffsets(bool newVal){
if (newVal){
setInt8((getInt8(4) & 0xBF) + 0x40, 4);
}else{
setInt8((getInt8(4) & 0xBF), 4);
}
}
bool AFRA::getLongOffsets(){
return getInt8(4) & 0x40;
}
void AFRA::setGlobalEntries(bool newVal){
if (newVal){
setInt8((getInt8(4) & 0xDF) + 0x20, 4);
}else{
setInt8((getInt8(4) & 0xDF), 4);
}
}
bool AFRA::getGlobalEntries(){
return getInt8(4) & 0x20;
}
void AFRA::setTimeScale(long newVal){
setInt32(newVal, 5);
}
long AFRA::getTimeScale(){
return getInt32(5);
}
long AFRA::getEntryCount(){
return getInt32(9);
}
void AFRA::setEntry(afraentry newEntry, long no){
int entrysize = 12;
if (getLongOffsets()){entrysize = 16;}
setInt64(newEntry.time, 13+entrysize*no);
if (getLongOffsets()){
setInt64(newEntry.offset, 21+entrysize*no);
}else{
setInt32(newEntry.offset, 21+entrysize*no);
}
if (no+1 > getEntryCount()){setInt32(no+1, 9);}
}
afraentry AFRA::getEntry(long no){
afraentry ret;
int entrysize = 12;
if (getLongOffsets()){entrysize = 16;}
ret.time = getInt64(13+entrysize*no);
if (getLongOffsets()){
ret.offset = getInt64(21+entrysize*no);
}else{
ret.offset = getInt32(21+entrysize*no);
}
return ret;
}
long AFRA::getGlobalEntryCount(){
if (!getGlobalEntries()){return 0;}
int entrysize = 12;
if (getLongOffsets()){entrysize = 16;}
return getInt32(13+entrysize*getEntryCount());
}
void AFRA::setGlobalEntry(globalafraentry newEntry, long no){
int offset = 13+12*getEntryCount()+4;
if (getLongOffsets()){offset = 13+16*getEntryCount()+4;}
int entrysize = 20;
if (getLongIDs()){entrysize += 4;}
if (getLongOffsets()){entrysize += 8;}
setInt64(newEntry.time, offset+entrysize*no);
if (getLongIDs()){
setInt32(newEntry.segment, offset+entrysize*no+8);
setInt32(newEntry.fragment, offset+entrysize*no+12);
}else{
setInt16(newEntry.segment, offset+entrysize*no+8);
setInt16(newEntry.fragment, offset+entrysize*no+10);
}
if (getLongOffsets()){
setInt64(newEntry.afraoffset, offset+entrysize*no+entrysize-16);
setInt64(newEntry.offsetfromafra, offset+entrysize*no+entrysize-8);
}else{
setInt32(newEntry.afraoffset, offset+entrysize*no+entrysize-8);
setInt32(newEntry.offsetfromafra, offset+entrysize*no+entrysize-4);
}
if (getInt32(offset-4) < no+1){setInt32(no+1, offset-4);}
}
globalafraentry AFRA::getGlobalEntry(long no){
globalafraentry ret;
int offset = 13+12*getEntryCount()+4;
if (getLongOffsets()){offset = 13+16*getEntryCount()+4;}
int entrysize = 20;
if (getLongIDs()){entrysize += 4;}
if (getLongOffsets()){entrysize += 8;}
ret.time = getInt64(offset+entrysize*no);
if (getLongIDs()){
ret.segment = getInt32(offset+entrysize*no+8);
ret.fragment = getInt32(offset+entrysize*no+12);
}else{
ret.segment = getInt16(offset+entrysize*no+8);
ret.fragment = getInt16(offset+entrysize*no+10);
}
if (getLongOffsets()){
ret.afraoffset = getInt64(offset+entrysize*no+entrysize-16);
ret.offsetfromafra = getInt64(offset+entrysize*no+entrysize-8);
}else{
ret.afraoffset = getInt32(offset+entrysize*no+entrysize-8);
ret.offsetfromafra = getInt32(offset+entrysize*no+entrysize-4);
}
return ret;
}
std::string AFRA::toPrettyString(long indent){
std::stringstream r;
r << std::string(indent, ' ') << "[afra] Fragment Random Access (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version " << getVersion() << std::endl;
r << std::string(indent+1, ' ') << "Flags " << getFlags() << std::endl;
r << std::string(indent+1, ' ') << "Long IDs " << getLongIDs() << std::endl;
r << std::string(indent+1, ' ') << "Long Offsets " << getLongOffsets() << std::endl;
r << std::string(indent+1, ' ') << "Global Entries " << getGlobalEntries() << std::endl;
r << std::string(indent+1, ' ') << "TimeScale " << getTimeScale() << std::endl;
long count = getEntryCount();
r << std::string(indent+1, ' ') << "Entries (" << count << ") " << std::endl;
for (long i = 0; i < count; ++i){
afraentry tmpent = getEntry(i);
r << std::string(indent+1, ' ') << i << ": Time " << tmpent.time << ", Offset " << tmpent.offset << std::endl;
}
if (getGlobalEntries()){
count = getGlobalEntryCount();
r << std::string(indent+1, ' ') << "Global Entries (" << count << ") " << std::endl;
for (long i = 0; i < count; ++i){
globalafraentry tmpent = getGlobalEntry(i);
r << std::string(indent+1, ' ') << i << ": T " << tmpent.time << ", S" << tmpent.segment << "F" << tmpent.fragment << ", " << tmpent.afraoffset << "/" << tmpent.offsetfromafra << std::endl;
}
}
return r.str();
}
AVCC::AVCC() {
memcpy(data + 4, "avcC", 4);
setInt8( 0xFF, 4 );//reserved + 4-bytes NAL length
}
void AVCC::setVersion( long newVersion ) {
setInt8( newVersion, 0 );
}
long AVCC::getVersion( ) {
return getInt8( 0 );
}
void AVCC::setProfile( long newProfile ) {
setInt8( newProfile, 1 );
}
long AVCC::getProfile( ) {
return getInt8( 1 );
}
void AVCC::setCompatibleProfiles( long newCompatibleProfiles ) {
setInt8( newCompatibleProfiles, 2 );
}
long AVCC::getCompatibleProfiles( ) {
return getInt8( 2 );
}
void AVCC::setLevel( long newLevel ) {
setInt8( newLevel, 3 );
}
long AVCC::getLevel( ) {
return getInt8( 3 );
}
void AVCC::setSPSNumber( long newSPSNumber ) {
setInt8( newSPSNumber, 5 );
}
long AVCC::getSPSNumber( ) {
return getInt8( 5 );
}
void AVCC::setSPS( std::string newSPS ) {
setInt16( newSPS.size(), 6 );
for( int i = 0; i < newSPS.size(); i++ ) {
setInt8( newSPS[i], 8+i );
}//not null-terminated
}
long AVCC::getSPSLen( ) {
return getInt16( 6 );
}
char* AVCC::getSPS( ) {
return payload() + 8;
}
void AVCC::setPPSNumber( long newPPSNumber ) {
int offset = 8 + getSPSLen( );
setInt8( newPPSNumber, offset );
}
long AVCC::getPPSNumber( ) {
int offset = 8 + getSPSLen( );
return getInt8( offset );
}
void AVCC::setPPS( std::string newPPS ) {
int offset = 8 + getSPSLen( ) + 1;
setInt16( newPPS.size(), offset );
for( int i = 0; i < newPPS.size(); i++ ) {
setInt8( newPPS[i], offset+2+i );
}//not null-terminated
}
long AVCC::getPPSLen( ) {
int offset = 8 + getSPSLen( ) + 1;
return getInt16( offset );
}
char* AVCC::getPPS( ) {
int offset = 8 + getSPSLen( ) + 3;
return payload() + offset;
}
std::string AVCC::toPrettyString(long indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[avcC] H.264 Init Data (" << boxedSize() << ")" << std::endl;
r << std::string(indent+1, ' ') << "Version: " << getVersion( ) << std::endl;
r << std::string(indent+1, ' ') << "Profile: " << getProfile( ) << std::endl;
r << std::string(indent+1, ' ') << "Compatible Profiles: " << getCompatibleProfiles( ) << std::endl;
r << std::string(indent+1, ' ') << "Level: " << getLevel( ) << std::endl;
r << std::string(indent+1, ' ') << "SPS Number: " << getSPSNumber( ) << std::endl;
r << std::string(indent+2, ' ') << getSPSLen( ) << " of SPS data" << std::endl;
r << std::string(indent+1, ' ') << "PPS Number: " << getPPSNumber( ) << std::endl;
r << std::string(indent+2, ' ') << getPPSLen( ) << " of PPS data" << std::endl;
return r.str();
}
std::string AVCC::asAnnexB( ) {
std::stringstream r;
r << (char)0x00 << (char)0x00 << (char)0x00 << (char)0x01;
r << getSPS( );
r << (char)0x00 << (char)0x00 << (char)0x00 << (char)0x01;
r << getPPS( );
return r.str();
}
};
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