mistserver/lib/ebml.cpp
2021-10-19 22:29:40 +02:00

682 lines
24 KiB
C++

#include "bitfields.h"
#include "defines.h"
#include "ebml.h"
#include <iomanip>
#include <sstream>
namespace EBML{
/// Reads the size of an EBML-encoded integer from a pointer
uint8_t UniInt::readSize(const char *p){
if (p[0] & 0x80){return 1;}
if (p[0] & 0x40){return 2;}
if (p[0] & 0x20){return 3;}
if (p[0] & 0x10){return 4;}
if (p[0] & 0x08){return 5;}
if (p[0] & 0x04){return 6;}
if (p[0] & 0x02){return 7;}
if (p[0] & 0x01){return 8;}
return 1;
}
/// Returns the size of an EBML-encoded integer for a given numerical value
uint8_t UniInt::writeSize(const uint64_t val){
if (val <= 0x7Eull){return 1;}
if (val <= 0x3FFEull){return 2;}
if (val <= 0x1FFFFEull){return 3;}
if (val <= 0xFFFFFFEull){return 4;}
if (val <= 0x7FFFFFFFEull){return 5;}
if (val <= 0x3FFFFFFFFFEull){return 6;}
if (val <= 0x1FFFFFFFFFFFEull){return 7;}
if (val <= 0xFFFFFFFFFFFFFEull){return 8;}
return 0;
}
/// Reads an EBML-encoded integer from a pointer. Expects the whole number to be readable without
/// bounds checking.
uint64_t UniInt::readInt(const char *p){
switch (readSize(p)){
case 1:
if (p[0] == 0xFF){return 0xFFFFFFFFFFFFFFFFull;}
return p[0] & 0x7F;
case 2: return Bit::btohs(p) & 0x3FFFull;
case 3: return Bit::btoh24(p) & 0x1FFFFFull;
case 4: return Bit::btohl(p) & 0xFFFFFFFull;
case 5: return Bit::btoh40(p) & 0x7FFFFFFFFull;
case 6: return Bit::btoh48(p) & 0x3FFFFFFFFFFull;
case 7: return Bit::btoh56(p) & 0x1FFFFFFFFFFFFull;
case 8: return Bit::btohll(p) & 0xFFFFFFFFFFFFFFull;
}
return 0;
}
void UniInt::writeInt(char *p, const uint64_t val){
switch (writeSize(val)){
case 1: p[0] = val | 0x80; break;
case 2: Bit::htobs(p, val | 0x4000ull); break;
case 3: Bit::htob24(p, val | 0x200000ull); break;
case 4: Bit::htobl(p, val | 0x10000000ull); break;
case 5: Bit::htob40(p, val | 0x800000000ull); break;
case 6: Bit::htob48(p, val | 0x40000000000ull); break;
case 7: Bit::htob56(p, val | 0x2000000000000ull); break;
case 8: Bit::htobll(p, val | 0x100000000000000ull); break;
}
}
/// Reads an EBML-encoded singed integer from a pointer. Expects the whole number to be readable
/// without bounds checking.
int64_t UniInt::readSInt(const char *p){
switch (readSize(p)){
case 1: return ((int64_t)readInt(p)) - 0x3Fll;
case 2: return ((int64_t)readInt(p)) - 0x1FFFll;
case 3: return ((int64_t)readInt(p)) - 0xFFFFFll;
case 4: return ((int64_t)readInt(p)) - 0x7FFFFFFll;
case 5: return ((int64_t)readInt(p)) - 0x3FFFFFFFFll;
case 6: return ((int64_t)readInt(p)) - 0x1FFFFFFFFFFll;
case 7: return ((int64_t)readInt(p)) - 0xFFFFFFFFFFFFll;
case 8: return ((int64_t)readInt(p)) - 0x7FFFFFFFFFFFFFll;
}
return 0;
}
void UniInt::writeSInt(char *p, const int64_t sval){
FAIL_MSG("Writing signed UniInt values not yet implemented!");
}
/// Given a pointer and available byte count, returns how many bytes must be available for more
/// data to be readable.
/// If minimal is true, returns only the header size if the element is an ELEM_MASTER type.
uint64_t Element::needBytes(const char *p, uint64_t availBytes, bool minimal){
if (availBytes < 2){return 2;}
uint64_t needed = UniInt::readSize(p);
if (availBytes < needed + 1){return needed + 1;}
const char *sizeOffset = p + needed;
needed += UniInt::readSize(sizeOffset);
if (availBytes < needed){return needed;}
// ELEM_MASTER types do not contain payload if minimal is true
if (minimal && Element(p, true).getType() == ELEM_MASTER){return needed;}
uint64_t pSize = UniInt::readInt(sizeOffset);
if (pSize != 0xFFFFFFFFFFFFFFFFull){needed += pSize;}
return needed;
}
std::string Element::getIDString(uint32_t id){
if (id > 0xFFFFFF){
id &= 0xFFFFFFF;
}else{
if (id > 0xFFFF){
id &= 0x1FFFFF;
}else{
if (id > 0xFF){
id &= 0x3FFF;
}else{
id &= 0x7F;
}
}
}
switch (id){
case EID_EBML: return "EBML";
case EID_SEGMENT: return "Segment";
case EID_CLUSTER: return "Cluster";
case EID_TIMECODE: return "Timecode";
case 0x20: return "BlockGroup";
case 0x21: return "Block";
case EID_SIMPLEBLOCK: return "SimpleBlock";
case 0x35A2: return "DiscardPadding";
case EID_SEEKHEAD: return "SeekHead";
case EID_SEEK: return "Seek";
case EID_SEEKID: return "SeekID";
case EID_SEEKPOSITION: return "SeekPosition";
case EID_INFO: return "Info";
case EID_TIMECODESCALE: return "TimecodeScale";
case EID_MUXINGAPP: return "MuxingApp";
case EID_WRITINGAPP: return "WritingApp";
case EID_DURATION: return "Duration";
case EID_TRACKS: return "Tracks";
case EID_TRACKENTRY: return "TrackEntry";
case EID_TRACKNUMBER: return "TrackNumber";
case EID_TRACKUID: return "TrackUID";
case EID_FLAGLACING: return "FlagLacing";
case EID_LANGUAGE: return "Language";
case EID_CODECID: return "CodecID";
case EID_TRACKTYPE: return "TrackType";
case EID_VIDEO: return "Video";
case EID_PIXELWIDTH: return "PixelWidth";
case EID_PIXELHEIGHT: return "PixelHeight";
case 0x1A: return "FlagInterlaced";
case EID_DISPLAYWIDTH: return "DisplayWidth";
case EID_DISPLAYHEIGHT: return "DisplayHeight";
case 0x15B0: return "Colour";
case 0x15B7: return "ChromaSitingHorz";
case 0x15B8: return "ChromaSitingVert";
case 0x15BA: return "TransferCharacteristics";
case 0x15B1: return "MatrixCoefficients";
case 0x15BB: return "Primaries";
case 0x15B9: return "Range";
case 0x136E: return "Name";
case 0x2DE7: return "MinCache";
case EID_AUDIO: return "Audio";
case EID_CHANNELS: return "Channels";
case EID_SAMPLINGFREQUENCY: return "SamplingFrequency";
case EID_BITDEPTH: return "BitDepth";
case EID_CODECDELAY: return "CodecDelay";
case EID_SEEKPREROLL: return "SeekPreRoll";
case EID_CODECPRIVATE: return "CodecPrivate";
case EID_DEFAULTDURATION: return "DefaultDuration";
case EID_EBMLVERSION: return "EBMLVersion";
case EID_EBMLREADVERSION: return "EBMLReadVersion";
case EID_EBMLMAXIDLENGTH: return "EBMLMaxIDLength";
case EID_EBMLMAXSIZELENGTH: return "EBMLMaxSizeLength";
case EID_DOCTYPE: return "DocType";
case EID_DOCTYPEVERSION: return "DocTypeVersion";
case EID_DOCTYPEREADVERSION: return "DocTypeReadVersion";
case EID_CUES: return "Cues";
case EID_CUEPOINT: return "CuePoint";
case EID_CUETIME: return "CueTime";
case EID_CUETRACKPOSITIONS: return "CueTrackPositions";
case EID_CUETRACK: return "CueTrack";
case EID_CUECLUSTERPOSITION: return "CueClusterPosition";
case EID_CUERELATIVEPOSITION: return "CueRelativePosition";
case 0x6C: return "Void";
case 0x3F: return "CRC-32";
case 0x33A4: return "SegmentUID";
case EID_TAGS: return "Tags";
case 0x3373: return "Tag";
case 0x23C0: return "Targets";
case 0x27C8: return "SimpleTag";
case 0x5A3: return "TagName";
case 0x487: return "TagString";
case 0x23C5: return "TagTrackUID";
case 0x43a770: return "Chapters";
case 0x3a770: return "Chapters";
case 0x941a469: return "Attachments";
case 0x8: return "FlagDefault";
case 0x461: return "DateUTC";
case 0x3BA9: return "Title";
case 0x1B: return "BlockDuration";
case 0x21A7: return "AttachedFile";
case 0x66E: return "FileName";
case 0x65C: return "FileData";
case 0x6AE: return "FileUID";
case 0x67E: return "FileDescription";
case 0x660: return "FileMimeType";
case 0x5B9: return "EditionEntry";
case 0x5BD: return "EditionFlagHidden";
case 0x5DB: return "EditionFlagDefault";
case 0x5BC: return "EditionUID";
case 0x36: return "ChapterAtom";
case 0x33C4: return "ChapterUID";
case 0x11: return "ChapterTimeStart";
case 0x18: return "ChapterFlagHidden";
case 0x598: return "ChapterFlagEnabled";
case 0x0: return "ChapterDisplay";
case 0x5: return "ChapString";
case 0x37C: return "ChapLanguage";
default:
std::stringstream ret;
ret << "UNKNOWN: 0x" << std::hex << std::setw(8) << std::setfill('0') << id;
return ret.str();
}
}
/// If minimal is set to true, ELEM_MASTER elements will never attempt to access their payload
/// data.
Element::Element(const char *p, bool minimal){
data = p;
minimalMode = minimal;
}
uint32_t Element::getID() const{return UniInt::readInt(data);}
uint64_t Element::getPayloadLen() const{
uint8_t sizeOffset = UniInt::readSize(data);
return UniInt::readInt(data + sizeOffset);
}
uint8_t Element::getHeaderLen() const{
uint8_t sizeOffset = UniInt::readSize(data);
return sizeOffset + UniInt::readSize(data + sizeOffset);
}
const char *Element::getPayload() const{return data + getHeaderLen();}
uint64_t Element::getOuterLen() const{
uint8_t sizeOffset = UniInt::readSize(data);
if (minimalMode && UniInt::readInt(data + sizeOffset) == 0xFFFFFFFFFFFFFFFFull){
return sizeOffset + UniInt::readSize(data + sizeOffset);
}else{
return UniInt::readInt(data + sizeOffset) + sizeOffset + UniInt::readSize(data + sizeOffset);
}
}
ElementType Element::getType() const{
switch (getID()){
case EID_EBML:
case EID_SEGMENT:
case EID_CLUSTER:
case EID_SEEKHEAD:
case EID_INFO:
case EID_TRACKS:
case EID_CUES:
case EID_SEEK:
case EID_TRACKENTRY:
case EID_VIDEO:
case EID_AUDIO:
case 0x20:
case EID_CUEPOINT:
case EID_CUETRACKPOSITIONS:
case 0x15B0:
case EID_TAGS:
case 0x3373:
case 0x23C0:
case 0x43a770:
case 0x3a770:
case 0x941a469:
case 0x21A7:
case 0x5B9:
case 0x36:
case 0x0:
case 0x27C8: return ELEM_MASTER;
case EID_EBMLVERSION:
case EID_EBMLREADVERSION:
case EID_EBMLMAXIDLENGTH:
case EID_EBMLMAXSIZELENGTH:
case EID_DOCTYPEVERSION:
case EID_DOCTYPEREADVERSION:
case EID_SEEKPOSITION:
case EID_TIMECODESCALE:
case EID_TIMECODE:
case EID_TRACKNUMBER:
case EID_TRACKUID:
case EID_FLAGLACING:
case EID_TRACKTYPE:
case EID_DEFAULTDURATION:
case EID_CODECDELAY:
case EID_SEEKPREROLL:
case EID_CUETIME:
case EID_CUETRACK:
case EID_CUECLUSTERPOSITION:
case EID_CUERELATIVEPOSITION:
case EID_PIXELWIDTH:
case EID_PIXELHEIGHT:
case 0x1A:
case EID_DISPLAYWIDTH:
case EID_DISPLAYHEIGHT:
case EID_CHANNELS:
case EID_BITDEPTH:
case 0x15B7:
case 0x15B8:
case 0x15BA:
case 0x15B9:
case 0x15B1:
case 0x15BB:
case 0x2DE7:
case 0x8:
case 0x1B:
case 0x6AE:
case 0x5BD:
case 0x5DB:
case 0x5BC:
case 0x33C4:
case 0x11:
case 0x18:
case 0x598:
case 0x23C5: return ELEM_UINT;
case 0x35A2: return ELEM_INT;
case EID_SAMPLINGFREQUENCY:
case EID_DURATION: return ELEM_FLOAT;
case EID_DOCTYPE:
case EID_LANGUAGE:
case 0x660:
case 0x37C:
case EID_CODECID: return ELEM_STRING;
case EID_MUXINGAPP:
case EID_WRITINGAPP:
case 0x5A3:
case 0x136E:
case 0x3BA9:
case 0x66E:
case 0x67E:
case 0x5:
case 0x487: return ELEM_UTF8;
case 0x6C:
case EID_SEEKID:
case EID_CODECPRIVATE:
case 0x3F:
case 0x65C:
case 0x33A4: return ELEM_BIN;
case EID_SIMPLEBLOCK:
case 0x21: return ELEM_BLOCK;
case 0x461: return ELEM_DATE;
default: return ELEM_UNKNOWN;
}
}
const Element Element::findChild(uint32_t id) const{
if (getID() == id){return *this;}
if (getType() != ELEM_MASTER){return Element();}
if (minimalMode){
ERROR_MSG("Attempted to find child element in header-only EBML buffer!");
return Element();
}
const uint64_t payLen = getPayloadLen();
const char *payDat = getPayload();
uint64_t offset = 0;
while (offset < payLen){
if (needBytes(payDat + offset, payLen - offset) > payLen - offset){
WARN_MSG("Trying to read beyond boundaries of element! Aborted.");
break;
}
Element e(payDat + offset);
Element f = e.findChild(id);
if (f){return f;}
offset += e.getOuterLen();
}
return Element();
}
std::string Element::toPrettyString(const uint8_t indent, const uint8_t detail) const{
std::stringstream ret;
switch (getType()){
case ELEM_MASTER:{
const uint64_t payLen = getPayloadLen();
ret << std::string(indent, ' ') << "Element [" << getIDString(getID()) << "] (" << getOuterLen() << "b, ";
if (payLen == 0xFFFFFFFFFFFFFFFFull){
ret << "infinite";
}else{
ret << payLen << "b";
}
ret << " payload)" << std::endl;
const char *payDat = getPayload();
uint64_t offset = 0;
while (!minimalMode && offset < payLen){
if (needBytes(payDat + offset, payLen - offset) > payLen - offset){
WARN_MSG("Trying to read beyond boundaries of element! Aborted.");
break;
}
Element e(payDat + offset);
ret << e.toPrettyString(indent + 2, detail);
offset += e.getOuterLen();
}
}break;
case ELEM_UINT:{
ret << std::string(indent, ' ') << "Element (" << getPayloadLen() << "/" << getOuterLen()
<< ") [" << getIDString(getID()) << "] = " << getValUInt() << std::endl;
}break;
case ELEM_INT:{
ret << std::string(indent, ' ') << "Element (" << getPayloadLen() << "/" << getOuterLen()
<< ") [" << getIDString(getID()) << "] = " << getValInt() << std::endl;
}break;
case ELEM_FLOAT:{
ret << std::string(indent, ' ') << "Element (" << getPayloadLen() << "/" << getOuterLen()
<< ") [" << getIDString(getID()) << "] = " << getValFloat() << std::endl;
}break;
case ELEM_STRING:
case ELEM_UTF8:{
ret << std::string(indent, ' ') << "Element (" << getPayloadLen() << "/" << getOuterLen()
<< ") [" << getIDString(getID()) << "] = " << getValString() << std::endl;
}break;
case ELEM_BLOCK:{
return Block(data).toPrettyString(indent, detail);
}break;
case ELEM_BIN:{
const uint32_t EID = getID();
const char *payDat = getPayload();
const uint64_t payLen = getPayloadLen();
if (EID == EID_SEEKID){
ret << std::string(indent, ' ') << "Element (" << payLen << "/" << getOuterLen() << ") ["
<< getIDString(getID()) << "] = " << getIDString(getValUInt()) << std::endl;
return ret.str();
}
if (payLen > 256 || (detail < 4 && payLen > 32)){
ret << std::string(indent, ' ') << "Element (" << getOuterLen() << ") ["
<< getIDString(getID()) << "] = " << payLen << " bytes of binary data" << std::endl;
}else{
if (getPayloadLen() <= 32){
ret << std::string(indent, ' ') << "Element (" << payLen << "/" << getOuterLen() << ") ["
<< getIDString(getID()) << "] = ";
for (uint64_t i = 0; i < payLen; ++i){
ret << std::hex << std::setw(2) << std::setfill('0') << (unsigned int)payDat[i];
}
}else{
ret << std::string(indent, ' ') << "Element (" << payLen << "/" << getOuterLen() << ") ["
<< getIDString(getID()) << "] =";
for (uint64_t i = 0; i < payLen; ++i){
if ((i % 32) == 0){ret << std::endl << std::string(indent + 2, ' ');}
ret << std::hex << std::setw(2) << std::setfill('0') << (unsigned int)payDat[i];
}
}
ret << std::endl;
}
}break;
default:
ret << std::string(indent, ' ') << "Element [" << getIDString(getID()) << "] ("
<< getOuterLen() << "b, " << getPayloadLen() << "b payload)" << std::endl;
ret << std::string(indent + 2, ' ') << "{Payload type not implemented}" << std::endl;
}
return ret.str();
}
uint64_t Element::getValUInt() const{
const char *payDat = getPayload();
uint64_t val = 0;
switch (getPayloadLen()){
case 1: val = payDat[0]; break;
case 2: val = Bit::btohs(payDat); break;
case 3: val = Bit::btoh24(payDat); break;
case 4: val = Bit::btohl(payDat); break;
case 5: val = Bit::btoh40(payDat); break;
case 6: val = Bit::btoh48(payDat); break;
case 7: val = Bit::btoh56(payDat); break;
case 8: val = Bit::btohll(payDat); break;
default: WARN_MSG("UInt payload size %" PRIu64 " not implemented", getPayloadLen());
}
return val;
}
int64_t Element::getValInt() const{
const char *payDat = getPayload();
int64_t val = 0;
switch (getPayloadLen()){
case 1: val = (int8_t)payDat[0]; break;
case 2: val = (((int64_t)Bit::btohs(payDat)) << 48) >> 48; break;
case 3: val = (((int64_t)Bit::btoh24(payDat)) << 40) >> 40; break;
case 4: val = (int32_t)Bit::btohl(payDat); break;
case 5: val = (((int64_t)Bit::btoh40(payDat)) << 24) >> 24; break;
case 6: val = (((int64_t)Bit::btoh48(payDat)) << 16) >> 16; break;
case 7: val = (((int64_t)Bit::btoh56(payDat)) << 8) >> 8; break;
case 8: val = Bit::btohll(payDat); break;
default: WARN_MSG("Int payload size %" PRIu64 " not implemented", getPayloadLen());
}
return val;
}
double Element::getValFloat() const{
const char *payDat = getPayload();
double val = 0;
switch (getPayloadLen()){
case 4: val = Bit::btohf(payDat); break;
case 8: val = Bit::btohd(payDat); break;
default: WARN_MSG("Float payload size %" PRIu64 " not implemented", getPayloadLen());
}
return val;
}
std::string Element::getValString() const{
uint64_t strLen = getPayloadLen();
const char *strPtr = getPayload();
while (strLen && strPtr[strLen - 1] == 0){--strLen;}
return std::string(strPtr, strLen);
}
std::string Element::getValStringUntrimmed() const{
uint64_t strLen = getPayloadLen();
const char *strPtr = getPayload();
return std::string(strPtr, strLen);
}
uint64_t Block::getTrackNum() const{return UniInt::readInt(getPayload());}
int16_t Block::getTimecode() const{
return Bit::btohs(getPayload() + UniInt::readSize(getPayload()));
}
bool Block::isKeyframe() const{return getPayload()[UniInt::readSize(getPayload()) + 2] & 0x80;}
bool Block::isInvisible() const{
return getPayload()[UniInt::readSize(getPayload()) + 2] & 0x08;
}
bool Block::isDiscardable() const{
return getPayload()[UniInt::readSize(getPayload()) + 2] & 0x01;
}
uint8_t Block::getLacing() const{
return (getPayload()[UniInt::readSize(getPayload()) + 2] & 0x6) >> 1;
}
uint8_t Block::getFrameCount() const{
if (getLacing() == 0){return 1;}
return getPayload()[UniInt::readSize(getPayload()) + 3] + 1;
}
uint32_t Block::getFrameSize(uint8_t no) const{
switch (getLacing()){
case 0: // No lacing
return getPayloadLen() - (UniInt::readSize(getPayload()) + 3);
case 1:{// Xiph lacing
uint64_t offset = (UniInt::readSize(getPayload()) + 3) + 1;
uint8_t frames = getFrameCount();
if (no > frames - 1){return 0;}// out of bounds
uint64_t laceNo = 0;
uint32_t currSize = 0;
uint32_t totSize = 0;
while (laceNo <= no && (laceNo < frames - 1) && offset < getPayloadLen()){
currSize += getPayload()[offset];
if (getPayload()[offset] != 255){
totSize += currSize;
if (laceNo == no){return currSize;}
currSize = 0;
++laceNo;
}
++offset;
}
return getPayloadLen() - offset - totSize; // last frame is rest of the data
}
case 3:{// EBML lacing
const char *pl = getPayload();
uint64_t offset = (UniInt::readSize(pl) + 3) + 1;
uint8_t frames = getFrameCount();
if (no > frames - 1){return 0;}// out of bounds
uint64_t laceNo = 0;
uint32_t currSize = 0;
uint32_t totSize = 0;
while (laceNo <= no && (laceNo < frames - 1) && offset < getPayloadLen()){
if (laceNo == 0){
currSize = UniInt::readInt(pl + offset);
}else{
currSize += UniInt::readSInt(pl + offset);
}
totSize += currSize;
if (laceNo == no){return currSize;}
++laceNo;
offset += UniInt::readSize(pl + offset);
}
return getPayloadLen() - offset - totSize; // last frame is rest of the data
}
case 2: // Fixed lacing
return (getPayloadLen() - (UniInt::readSize(getPayload()) + 3)) / getFrameCount();
}
WARN_MSG("Lacing type not yet implemented!");
return 0;
}
const char *Block::getFrameData(uint8_t no) const{
switch (getLacing()){
case 0: // No lacing
return getPayload() + (UniInt::readSize(getPayload()) + 3);
case 1:{// Xiph lacing
uint64_t offset = (UniInt::readSize(getPayload()) + 3) + 1;
uint8_t frames = getFrameCount();
if (no > frames - 1){return 0;}// out of bounds
uint64_t laceNo = 0;
uint32_t currSize = 0;
while ((laceNo < frames - 1) && offset < getPayloadLen()){
if (laceNo < no){currSize += getPayload()[offset];}
if (getPayload()[offset] != 255){++laceNo;}
++offset;
}
return getPayload() + offset + currSize;
}
case 3:{// EBML lacing
const char *pl = getPayload();
uint64_t offset = (UniInt::readSize(pl) + 3) + 1;
uint8_t frames = getFrameCount();
if (no > frames - 1){return 0;}// out of bounds
uint64_t laceNo = 0;
uint32_t currSize = 0;
uint32_t totSize = 0;
while ((laceNo < frames - 1) && offset < getPayloadLen()){
if (laceNo == 0){
currSize = UniInt::readInt(pl + offset);
}else{
currSize += UniInt::readSInt(pl + offset);
}
if (laceNo < no){totSize += currSize;}
++laceNo;
offset += UniInt::readSize(pl + offset);
}
return pl + offset + totSize;
}
case 2: // Fixed lacing
return getPayload() + (UniInt::readSize(getPayload()) + 3) + 1 + no * getFrameSize(no);
}
WARN_MSG("Lacing type not yet implemented!");
return 0;
}
std::string Block::toPrettyString(const uint8_t indent, const uint8_t detail) const{
std::stringstream ret;
ret << std::string(indent, ' ') << getIDString(getID()) << " with " << (unsigned int)getFrameCount()
<< " frame(s) for track " << getTrackNum() << " @ " << getTimecode();
if (isKeyframe()){ret << " [KeyOnly]";}
if (isInvisible()){ret << " [Invisible]";}
if (isDiscardable()){ret << " [Discardable]";}
switch (getLacing()){
case 0: break; // No lacing
case 1: ret << " [Lacing: Xiph]"; break;
case 3: ret << " [Lacing: EMBL]"; break;
case 2: ret << " [Lacing: Fixed]"; break;
}
ret << std::endl;
if (detail >= 4){
for (uint32_t frameNo = 0; frameNo < getFrameCount(); ++frameNo){
const char *payDat = getFrameData(frameNo);
const uint64_t payLen = getFrameSize(frameNo);
ret << std::dec << std::string(indent + 4, ' ') << "Frame " << (frameNo + 1) << " (" << payLen << "b):";
if (!payDat || !payLen || detail < 6){
ret << std::endl;
continue;
}
for (uint64_t i = 0; i < payLen; ++i){
if ((i % 32) == 0){ret << std::endl << std::string(indent + 6, ' ');}
ret << std::hex << std::setw(2) << std::setfill('0') << (unsigned int)payDat[i];
}
ret << std::endl;
}
}
if (detail >= 10){
uint32_t extraStuff = (UniInt::readSize(getPayload()) + 3);
const char *payDat = getPayload() + extraStuff;
const uint64_t payLen = getPayloadLen() - extraStuff;
ret << std::dec << std::string(indent + 4, ' ') << "Raw data:";
for (uint64_t i = 0; i < payLen; ++i){
if ((i % 32) == 0){ret << std::endl << std::string(indent + 6, ' ');}
ret << std::hex << std::setw(2) << std::setfill('0') << (unsigned int)payDat[i];
}
}
ret << std::endl;
return ret.str();
}
}// namespace EBML