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Ogg support fixed and re-added. Squash of various commits made by Wouter Spruit.

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This commit is contained in:
Thulinma 2014-12-23 13:05:41 +01:00
parent 689e1d714e
commit 4d9f4da3f1
11 changed files with 1238 additions and 465 deletions
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12
lib/bitstream.cpp
View file

@ -158,10 +158,11 @@ namespace Utils {
}
void bitstreamLSBF::append(char * input, size_t bytes) {
append(std::string(input, bytes));
data.append(input, bytes);
fixData();
}
void bitstreamLSBF::append(std::string input) {
void bitstreamLSBF::append(std::string & input) {
data += input;
fixData();
}
@ -203,11 +204,12 @@ namespace Utils {
}
void bitstreamLSBF::fixData() {
unsigned int pos=0;
while (readBufferOffset <= 32 && data.size() != 0) {
//readBuffer = readBuffer & ((1 << readBufferOffset) - 1) | (data[0] << readBufferOffset);
readBuffer |= (((long long unsigned int)data[0]) << readBufferOffset);
data = data.substr(1);
readBuffer |= (((long long unsigned int)data[pos]) << readBufferOffset);
pos++;
readBufferOffset += 8;
}
data.erase(0, pos);
}
}

2
lib/bitstream.h
View file

@ -43,7 +43,7 @@ namespace Utils {
return *this;
};
void append(char * input, size_t bytes);
void append(std::string input);
void append(std::string & input);
long long unsigned int size();
void skip(size_t count);
long long unsigned int get(size_t count);

37
lib/dtsc.cpp
View file

@ -172,7 +172,7 @@ void DTSC::Stream::endStream() {
if (!metadata.tracks.size()) {
return;
}
for (std::map<int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
JSON::Value newPack;
newPack["time"] = (long long)it->second.lastms;
newPack["trackid"] = it->first;
@ -387,7 +387,7 @@ DTSC::datatype DTSC::Stream::lastType() {
/// Returns true if the current stream contains at least one video track.
bool DTSC::Stream::hasVideo() {
for (std::map<int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
if (it->second.type == "video") {
return true;
}
@ -397,7 +397,7 @@ bool DTSC::Stream::hasVideo() {
/// Returns true if the current stream contains at least one audio track.
bool DTSC::Stream::hasAudio() {
for (std::map<int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
if (it->second.type == "audio") {
return true;
}
@ -470,7 +470,7 @@ int DTSC::Stream::canSeekms(unsigned int ms) {
return 1;
}
//loop trough all the tracks
for (std::map<int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = metadata.tracks.begin(); it != metadata.tracks.end(); it++) {
if (it->second.keys.size()) {
if (it->second.keys[0].getTime() <= ms && it->second.keys[it->second.keys.size() - 1].getTime() >= ms) {
return 0;
@ -488,10 +488,10 @@ int DTSC::Stream::canSeekms(unsigned int ms) {
return 1;
}
DTSC::livePos DTSC::Stream::msSeek(unsigned int ms, std::set<int> & allowedTracks) {
std::set<int> seekTracks = allowedTracks;
DTSC::livePos DTSC::Stream::msSeek(unsigned int ms, std::set<unsigned int> & allowedTracks) {
std::set<unsigned int> seekTracks = allowedTracks;
livePos result = buffers.begin()->first;
for (std::set<int>::iterator it = allowedTracks.begin(); it != allowedTracks.end(); it++) {
for (std::set<unsigned int>::iterator it = allowedTracks.begin(); it != allowedTracks.end(); it++) {
if (metadata.tracks[*it].type == "video") {
int trackNo = *it;
seekTracks.clear();
@ -514,12 +514,12 @@ DTSC::livePos DTSC::Stream::msSeek(unsigned int ms, std::set<int> & allowedTrack
/// Returns whether the current position is the last currently available position within allowedTracks.
/// Simply returns the result of getNext(pos, allowedTracks) == pos
bool DTSC::Stream::isNewest(DTSC::livePos & pos, std::set<int> & allowedTracks) {
bool DTSC::Stream::isNewest(DTSC::livePos & pos, std::set<unsigned int> & allowedTracks) {
return getNext(pos, allowedTracks) == pos;
}
/// Returns the next available position within allowedTracks, or the current position if no next is availble.
DTSC::livePos DTSC::Stream::getNext(DTSC::livePos & pos, std::set<int> & allowedTracks) {
DTSC::livePos DTSC::Stream::getNext(DTSC::livePos & pos, std::set<unsigned int> & allowedTracks) {
std::map<livePos, JSON::Value>::iterator iter = buffers.upper_bound(pos);
while (iter != buffers.end()) {
if (allowedTracks.count(iter->first.trackID)) {
@ -856,7 +856,10 @@ void DTSC::File::seekNext() {
}
}
}
if (insert) {
if (insert){
if (tmpPos.seekTime > 0xffffffffffffff00ll){
tmpPos.seekTime = 0;
}
currentPositions.insert(tmpPos);
} else {
seek_time(myPack.getTime() + 1, myPack.getTrackId(), true);
@ -865,8 +868,7 @@ void DTSC::File::seekNext() {
}
}
void DTSC::File::parseNext() {
void DTSC::File::parseNext(){
lastreadpos = ftell(F);
if (fread(buffer, 4, 1, F) != 1) {
if (feof(F)) {
@ -947,7 +949,7 @@ DTSC::Packet & DTSC::File::getPacket() {
return myPack;
}
bool DTSC::File::seek_time(unsigned int ms, int trackNo, bool forceSeek) {
bool DTSC::File::seek_time(unsigned int ms, unsigned int trackNo, bool forceSeek) {
seekPos tmpPos;
tmpPos.trackID = trackNo;
if (!forceSeek && myPack && ms > myPack.getTime() && trackNo >= myPack.getTrackId()) {
@ -1012,7 +1014,10 @@ bool DTSC::File::seek_time(unsigned int ms, int trackNo, bool forceSeek) {
continue;
}
}
DEBUG_MSG(DLVL_HIGH, "Seek to %d:%d resulted in %lli", trackNo, ms, tmpPos.seekTime);
//DEBUG_MSG(DLVL_HIGH, "Seek to %u:%d resulted in %lli", trackNo, ms, tmpPos.seekTime);
if (tmpPos.seekTime > 0xffffffffffffff00ll){
tmpPos.seekTime = 0;
}
currentPositions.insert(tmpPos);
return true;
}
@ -1022,7 +1027,7 @@ bool DTSC::File::seek_time(unsigned int ms, int trackNo, bool forceSeek) {
bool DTSC::File::seek_time(unsigned int ms) {
currentPositions.clear();
if (selectedTracks.size()) {
for (std::set<int>::iterator it = selectedTracks.begin(); it != selectedTracks.end(); it++) {
for (std::set<unsigned int>::iterator it = selectedTracks.begin(); it != selectedTracks.end(); it++) {
seek_time(ms, (*it), true);
}
}
@ -1070,7 +1075,7 @@ bool DTSC::File::atKeyframe() {
return false;
}
void DTSC::File::selectTracks(std::set<int> & tracks) {
void DTSC::File::selectTracks(std::set<unsigned int> & tracks) {
selectedTracks = tracks;
currentPositions.clear();
seek_time(0);

26
lib/dtsc.h
View file

@ -163,8 +163,8 @@ namespace DTSC {
}
return (trackID < rhs.trackID);
}
volatile long long unsigned int seekTime;
volatile unsigned int trackID;
long long unsigned int seekTime;
unsigned int trackID;
};
/// A part from the DTSC::Stream ringbuffer.
@ -267,7 +267,7 @@ namespace DTSC {
std::vector<unsigned long> keySizes;
long long unsigned int partLen;
Part * parts;
int trackID;
unsigned int trackID;
unsigned long long firstms;
unsigned long long lastms;
int bps;
@ -318,7 +318,7 @@ namespace DTSC {
inline operator bool() const {
return vod || live;
}
std::map<int, readOnlyTrack> tracks;
std::map<unsigned int, readOnlyTrack> tracks;
bool vod;
bool live;
bool merged;
@ -352,7 +352,7 @@ namespace DTSC {
bool isFixed();
void toPrettyString(std::ostream & str, int indent = 0, int verbosity = 0);
//members:
std::map<int, Track> tracks;
std::map<unsigned int, Track> tracks;
};
/// A simple wrapper class that will open a file and allow easy reading/writing of DTSC data from/to it.
@ -375,20 +375,20 @@ namespace DTSC {
void parseNext();
DTSC::Packet & getPacket();
bool seek_time(unsigned int ms);
bool seek_time(unsigned int ms, int trackNo, bool forceSeek = false);
bool seek_time(unsigned int ms, unsigned int trackNo, bool forceSeek = false);
bool seek_bpos(int bpos);
void rewritePacket(std::string & newPacket, int bytePos);
void writePacket(std::string & newPacket);
void writePacket(JSON::Value & newPacket);
bool atKeyframe();
void selectTracks(std::set<int> & tracks);
void selectTracks(std::set<unsigned int> & tracks);
private:
long int endPos;
void readHeader(int pos);
DTSC::Packet myPack;
JSON::Value metaStorage;
readOnlyMeta metadata;
std::map<int, std::string> trackMapping;
std::map<unsigned int, std::string> trackMapping;
long long int currtime;
long long int lastreadpos;
int currframe;
@ -397,7 +397,7 @@ namespace DTSC {
void * buffer;
bool created;
std::set<seekPos> currentPositions;
std::set<int> selectedTracks;
std::set<unsigned int> selectedTracks;
};
//FileWriter
@ -425,10 +425,10 @@ namespace DTSC {
unsigned int getTime();
void dropRing(Ring * ptr);
int canSeekms(unsigned int ms);
livePos msSeek(unsigned int ms, std::set<int> & allowedTracks);
livePos msSeek(unsigned int ms, std::set<unsigned int> & allowedTracks);
void setBufferTime(unsigned int ms);
bool isNewest(DTSC::livePos & pos, std::set<int> & allowedTracks);
DTSC::livePos getNext(DTSC::livePos & pos, std::set<int> & allowedTracks);
bool isNewest(DTSC::livePos & pos, std::set<unsigned int> & allowedTracks);
DTSC::livePos getNext(DTSC::livePos & pos, std::set<unsigned int> & allowedTracks);
void endStream();
void waitForMeta(Socket::Connection & sourceSocket, bool closeOnError = true);
void waitForPause(Socket::Connection & sourceSocket);
@ -442,7 +442,7 @@ namespace DTSC {
datatype datapointertype;
unsigned int buffercount;
unsigned int buffertime;
std::map<int, std::string> trackMapping;
std::map<unsigned int, std::string> trackMapping;
virtual void deletionCallback(livePos deleting);
};
}

29
lib/dtscmeta.cpp
View file

@ -1285,6 +1285,7 @@ namespace DTSC {
void Track::reset() {
fragments.clear();
parts.clear();
keySizes.clear();
keys.clear();
bps = 0;
firstms = 0;
@ -1392,7 +1393,7 @@ namespace DTSC {
live = rhs.live;
merged = rhs.merged;
bufferWindow = rhs.bufferWindow;
for (std::map<int, readOnlyTrack>::const_iterator it = rhs.tracks.begin(); it != rhs.tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::const_iterator it = rhs.tracks.begin(); it != rhs.tracks.end(); it++) {
tracks[it->first] = it->second;
}
moreheader = rhs.moreheader;
@ -1897,7 +1898,7 @@ namespace DTSC {
///\brief Determines the "packed" size of a read-only meta object
unsigned int readOnlyMeta::getSendLen() {
unsigned int dataLen = 16 + (vod ? 14 : 0) + (live ? 15 : 0) + (merged ? 17 : 0) + (bufferWindow ? 24 : 0) + 21;
for (std::map<int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
dataLen += it->second.getSendLen();
}
return dataLen + 8; //add 8 bytes header length
@ -1909,7 +1910,7 @@ namespace DTSC {
writePointer(p, DTSC::Magic_Header, 4);
writePointer(p, convertInt(dataLen), 4);
writePointer(p, "\340\000\006tracks\340", 10);
for (std::map<int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.writeTo(p);
}
writePointer(p, "\000\000\356", 3);
@ -1940,7 +1941,7 @@ namespace DTSC {
conn.SendNow(DTSC::Magic_Header, 4);
conn.SendNow(convertInt(dataLen), 4);
conn.SendNow("\340\000\006tracks\340", 10);
for (std::map<int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.send(conn);
}
conn.SendNow("\000\000\356", 3);
@ -1968,7 +1969,7 @@ namespace DTSC {
///\brief Determines the "packed" size of a meta object
unsigned int Meta::getSendLen() {
unsigned int dataLen = 16 + (vod ? 14 : 0) + (live ? 15 : 0) + (merged ? 17 : 0) + (bufferWindow ? 24 : 0) + 21;
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
dataLen += it->second.getSendLen();
}
return dataLen + 8; //add 8 bytes header
@ -1980,7 +1981,7 @@ namespace DTSC {
writePointer(p, DTSC::Magic_Header, 4);
writePointer(p, convertInt(dataLen), 4);
writePointer(p, "\340\000\006tracks\340", 10);
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.writeTo(p);
}
writePointer(p, "\000\000\356", 3);//End tracks object
@ -2011,7 +2012,7 @@ namespace DTSC {
conn.SendNow(DTSC::Magic_Header, 4);
conn.SendNow(convertInt(dataLen), 4);
conn.SendNow("\340\000\006tracks\340", 10);
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.send(conn);
}
conn.SendNow("\000\000\356", 3);//End tracks object
@ -2136,7 +2137,7 @@ namespace DTSC {
///\brief Converts a meta object to a JSON::Value
JSON::Value Meta::toJSON() {
JSON::Value result;
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
result["tracks"][it->second.getWritableIdentifier()] = it->second.toJSON();
}
if (vod) {
@ -2160,7 +2161,7 @@ namespace DTSC {
///\param indent the amount of indentation needed
///\param verbosity How verbose the output needs to be
void readOnlyMeta::toPrettyString(std::ostream & str, int indent, int verbosity) {
for (std::map<int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.toPrettyString(str, indent, verbosity);
}
if (vod) {
@ -2183,7 +2184,7 @@ namespace DTSC {
///\param indent the amount of indentation needed
///\param verbosity How verbose the output needs to be
void Meta::toPrettyString(std::ostream & str, int indent, int verbosity) {
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.toPrettyString(str, indent, verbosity);
}
if (vod) {
@ -2204,7 +2205,7 @@ namespace DTSC {
///\brief Converts a read-only meta object to a JSON::Value
JSON::Value readOnlyMeta::toJSON() {
JSON::Value result;
for (std::map<int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
result["tracks"][it->second.getWritableIdentifier()] = it->second.toJSON();
}
if (vod) {
@ -2225,14 +2226,14 @@ namespace DTSC {
///\brief Resets a meta object, removes all unimportant meta values
void Meta::reset() {
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
it->second.reset();
}
}
///\brief Returns whether a read-only meta object is fixed or not
bool readOnlyMeta::isFixed() {
for (std::map<int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, readOnlyTrack>::iterator it = tracks.begin(); it != tracks.end(); it++) {
if (!it->second.keyLen || !(it->second.keys[it->second.keyLen - 1].getBpos())) {
return false;
}
@ -2242,7 +2243,7 @@ namespace DTSC {
///\brief Returns whether a meta object is fixed or not
bool Meta::isFixed() {
for (std::map<int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
for (std::map<unsigned int, Track>::iterator it = tracks.begin(); it != tracks.end(); it++) {
if (it->second.type == "meta" || it->second.type == "") {
continue;
}

637
lib/ogg.cpp Normal file
View file

@ -0,0 +1,637 @@
#include "ogg.h"
#include "defines.h"
#include <string.h>
#include <stdlib.h>
#include <sstream>
#include <arpa/inet.h>
#include <iomanip>
#include <mist/bitstream.h>
namespace OGG {
oggSegment::oggSegment(){
isKeyframe = 0;
frameNumber = 0;
timeStamp = 0;
framesSinceKeyFrame = 0;
}
std::deque<unsigned int> decodeXiphSize(char * data, size_t len){
std::deque<unsigned int> res;
res.push_back(0);
for (int i = 0; i < len; i++){
*res.rbegin() += data[i];
if (data[i] != 0xFF){
res.push_back(0);
}
}
if (*res.rbegin() == 0){
res.resize(res.size() - 1);
}
return res;
}
inline long long unsigned int get_64(char * data){
long long unsigned int temp = 0;
for (int i = 7; i >= 0; --i){
temp <<= 8;
temp += data[i];
}
return temp;
}
inline long unsigned int get_32(char * data){
long unsigned int temp = 0;
for (int i = 3; i >= 0; --i){
temp <<= 8;
temp += data[i];
}
return temp;
}
inline void set_64(char * data, long unsigned int val){
for (int i = 0; i < 8; ++i){
data[i] = val & 0xFF;
val >>= 8;
}
}
inline void set_32(char * data, long unsigned int val){
for (int i = 0; i < 4; ++i){
data[i] = val & 0xFF;
val >>= 8;
}
}
Page::Page(){
framesSeen = 0;
lastKeyFrame = 0;
sampleRate = 0;
firstSample = 0;
pageSequenceNumber = 0;
totalFrames = 0;
memset(data, 0, 282);
}
Page::Page(const Page & rhs){
framesSeen=rhs.framesSeen;
pageSequenceNumber = rhs.pageSequenceNumber;
lastKeyFrame = rhs.lastKeyFrame;
sampleRate = rhs.sampleRate;
firstSample = rhs.firstSample;
totalFrames= rhs.totalFrames;
memcpy(data, rhs.data, 282);
segments = rhs.segments;
}
void Page::operator = (const Page & rhs){
framesSeen=rhs.framesSeen;
pageSequenceNumber = rhs.pageSequenceNumber;
lastKeyFrame = rhs.lastKeyFrame;
firstSample = rhs.firstSample;
sampleRate = rhs.sampleRate;
totalFrames= rhs.totalFrames;
memcpy(data, rhs.data, 282);
segments = rhs.segments;
}
unsigned int Page::calcPayloadSize(){
unsigned int retVal = 0;
for (int i = 0; i < segments.size(); i++){
retVal += segments[i].size();
}
return retVal;
}
/// Reads an OGG Page from the source and if valid, removes it from source.
bool Page::read(std::string & newData){
int len = newData.size();
segments.clear();
if (newData.size() < 27){
return false;
}
if (newData.substr(0, 4) != "OggS"){
DEBUG_MSG(DLVL_FAIL, "Invalid Ogg page encountered (magic number wrong: %s) - cannot continue", newData.c_str());
return false;
}
memcpy(data, newData.c_str(), 27);//copying the header, always 27 bytes
if (newData.size() < 27u + getPageSegments()){ //check input size
return false;
}
newData.erase(0, 27);
memcpy(data + 27, newData.c_str(), getPageSegments());
newData.erase(0, getPageSegments());
std::deque<unsigned int> segSizes = decodeXiphSize(data + 27, getPageSegments());
for (std::deque<unsigned int>::iterator it = segSizes.begin(); it != segSizes.end(); it++){
segments.push_back(std::string(newData.data(), *it));
newData.erase(0, *it);
}
INFO_MSG("Erased %lu bytes from the input", len - newData.size());
return true;
}
bool Page::read(FILE * inFile){
segments.clear();
int oriPos = ftell(inFile);
//INFO_MSG("pos: %d", oriPos);
if (!fread(data, 27, 1, inFile)){
fseek(inFile, oriPos, SEEK_SET);
FAIL_MSG("failed to fread(data, 27, 1, inFile) @ pos %d", oriPos);
return false;
}
if (std::string(data, 4) != "OggS"){
DEBUG_MSG(DLVL_FAIL, "Invalid Ogg page encountered (magic number wrong: %s) - cannot continue bytePos %d", data, oriPos);
return false;
}
if (!fread(data + 27, getPageSegments(), 1, inFile)){
fseek(inFile, oriPos, SEEK_SET);
FAIL_MSG("failed to fread(data + 27, getPageSegments() %d, 1, inFile) @ pos %d", getPageSegments(), oriPos);
return false;
}
std::deque<unsigned int> segSizes = decodeXiphSize(data + 27, getPageSegments());
for (std::deque<unsigned int>::iterator it = segSizes.begin(); it != segSizes.end(); it++){
if (*it){
char * thisSeg = (char *)malloc(*it * sizeof(char));
if (!thisSeg){
DEBUG_MSG(DLVL_WARN, "malloc failed");
}
if (!fread(thisSeg, *it, 1, inFile)){
DEBUG_MSG(DLVL_WARN, "Unable to read a segment @ pos %d segment size: %d getPageSegments: %d", oriPos, *it, getPageSegments());
fseek(inFile, oriPos, SEEK_SET);
return false;
}
segments.push_back(std::string(thisSeg, *it));
free(thisSeg);
}else{
segments.push_back(std::string("", 0));
}
}
return true;
}
bool Page::getSegment(unsigned int index, std::string & ret){
if (index >= segments.size()){
ret.clear();
return false;
}
ret = segments[index];
return true;
}
const char * Page::getSegment(unsigned int index){
if (index >= segments.size()){
return 0;
}
return segments[index].data();
}
unsigned long Page::getSegmentLen(unsigned int index){
if (index >= segments.size()){
return 0;
}
return segments[index].size();
}
void Page::setMagicNumber(){
memcpy(data, "OggS", 4);
}
char Page::getVersion(){
return data[4];
}
void Page::setVersion(char newVal){
data[4] = newVal;
}
char Page::getHeaderType(){
return data[5];
}
void Page::setHeaderType(char newVal){
data[5] = newVal;
}
long long unsigned int Page::getGranulePosition(){
return get_64(data + 6);
}
void Page::setGranulePosition(long long unsigned int newVal){
set_64(data + 6, newVal);
}
long unsigned int Page::getBitstreamSerialNumber(){
//return ntohl(((long unsigned int*)(data+14))[0]);
return get_32(data + 14);
}
void Page::setBitstreamSerialNumber(long unsigned int newVal){
set_32(data + 14, newVal);
}
long unsigned int Page::getPageSequenceNumber(){
return get_32(data + 18);
}
void Page::setPageSequenceNumber(long unsigned int newVal){
set_32(data + 18, newVal);
}
long unsigned int Page::getCRCChecksum(){
return get_32(data + 22);
}
void Page::setCRCChecksum(long unsigned int newVal){
set_32(data + 22, newVal);
}
char Page::getPageSegments(){
return data[26];
}
inline void Page::setPageSegments(char newVal){
data[26] = newVal;
}
bool Page::verifyChecksum(){
if (getCRCChecksum() == calcChecksum()){ //NOTE: calcChecksum is currently not functional (it will always return 0)
return true;
} else {
return false;
}
}
bool Page::possiblyContinued(){
if (getPageSegments() == 255){
if (data[281] == 255){
return true;
}
}
return false;
}
std::string Page::toPrettyString(size_t indent){
std::stringstream r;
r << std::string(indent, ' ') << "Ogg page" << std::endl;
r << std::string(indent + 2, ' ') << "Version: " << (int)getVersion() << std::endl;
r << std::string(indent + 2, ' ') << "Header type:";
if (!getHeaderType()){
r << " Normal";
} else {
if (getHeaderType() & Continued){
r << " Continued";
}
if (getHeaderType() & BeginOfStream){
r << " BeginOfStream";
}
if (getHeaderType() & EndOfStream){
r << " EndOfStream";
}
}
r << " (" << (int)getHeaderType() << ")" << std::endl;
r << std::string(indent + 2, ' ') << "Granule position: " << std::hex << std::setw(16) << std::setfill('0') << getGranulePosition() << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "Bitstream number: " << getBitstreamSerialNumber() << std::endl;
r << std::string(indent + 2, ' ') << "Sequence number: " << getPageSequenceNumber() << std::endl;
r << std::string(indent + 2, ' ') << "Checksum Correct: " << verifyChecksum() << std::endl;
//r << " Calced Checksum: " << std::hex << calcChecksum() << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "Checksum: " << getCRCChecksum() << std::endl;
r << std::string(indent + 2, ' ') << (int)getPageSegments() << " segments:" << std::endl;
r << std::string(indent + 3, ' ');
for (int i = 0; i < segments.size(); i++){
r << " " << segments[i].size();
}
r << std::endl;
return r.str();
}
inline unsigned int crc32(unsigned int crc, const char * data, size_t len){
static const unsigned int table[256] = {
0x00000000U, 0x04C11DB7U, 0x09823B6EU, 0x0D4326D9U,
0x130476DCU, 0x17C56B6BU, 0x1A864DB2U, 0x1E475005U,
0x2608EDB8U, 0x22C9F00FU, 0x2F8AD6D6U, 0x2B4BCB61U,
0x350C9B64U, 0x31CD86D3U, 0x3C8EA00AU, 0x384FBDBDU,
0x4C11DB70U, 0x48D0C6C7U, 0x4593E01EU, 0x4152FDA9U,
0x5F15ADACU, 0x5BD4B01BU, 0x569796C2U, 0x52568B75U,
0x6A1936C8U, 0x6ED82B7FU, 0x639B0DA6U, 0x675A1011U,
0x791D4014U, 0x7DDC5DA3U, 0x709F7B7AU, 0x745E66CDU,
0x9823B6E0U, 0x9CE2AB57U, 0x91A18D8EU, 0x95609039U,
0x8B27C03CU, 0x8FE6DD8BU, 0x82A5FB52U, 0x8664E6E5U,
0xBE2B5B58U, 0xBAEA46EFU, 0xB7A96036U, 0xB3687D81U,
0xAD2F2D84U, 0xA9EE3033U, 0xA4AD16EAU, 0xA06C0B5DU,
0xD4326D90U, 0xD0F37027U, 0xDDB056FEU, 0xD9714B49U,
0xC7361B4CU, 0xC3F706FBU, 0xCEB42022U, 0xCA753D95U,
0xF23A8028U, 0xF6FB9D9FU, 0xFBB8BB46U, 0xFF79A6F1U,
0xE13EF6F4U, 0xE5FFEB43U, 0xE8BCCD9AU, 0xEC7DD02DU,
0x34867077U, 0x30476DC0U, 0x3D044B19U, 0x39C556AEU,
0x278206ABU, 0x23431B1CU, 0x2E003DC5U, 0x2AC12072U,
0x128E9DCFU, 0x164F8078U, 0x1B0CA6A1U, 0x1FCDBB16U,
0x018AEB13U, 0x054BF6A4U, 0x0808D07DU, 0x0CC9CDCAU,
0x7897AB07U, 0x7C56B6B0U, 0x71159069U, 0x75D48DDEU,
0x6B93DDDBU, 0x6F52C06CU, 0x6211E6B5U, 0x66D0FB02U,
0x5E9F46BFU, 0x5A5E5B08U, 0x571D7DD1U, 0x53DC6066U,
0x4D9B3063U, 0x495A2DD4U, 0x44190B0DU, 0x40D816BAU,
0xACA5C697U, 0xA864DB20U, 0xA527FDF9U, 0xA1E6E04EU,
0xBFA1B04BU, 0xBB60ADFCU, 0xB6238B25U, 0xB2E29692U,
0x8AAD2B2FU, 0x8E6C3698U, 0x832F1041U, 0x87EE0DF6U,
0x99A95DF3U, 0x9D684044U, 0x902B669DU, 0x94EA7B2AU,
0xE0B41DE7U, 0xE4750050U, 0xE9362689U, 0xEDF73B3EU,
0xF3B06B3BU, 0xF771768CU, 0xFA325055U, 0xFEF34DE2U,
0xC6BCF05FU, 0xC27DEDE8U, 0xCF3ECB31U, 0xCBFFD686U,
0xD5B88683U, 0xD1799B34U, 0xDC3ABDEDU, 0xD8FBA05AU,
0x690CE0EEU, 0x6DCDFD59U, 0x608EDB80U, 0x644FC637U,
0x7A089632U, 0x7EC98B85U, 0x738AAD5CU, 0x774BB0EBU,
0x4F040D56U, 0x4BC510E1U, 0x46863638U, 0x42472B8FU,
0x5C007B8AU, 0x58C1663DU, 0x558240E4U, 0x51435D53U,
0x251D3B9EU, 0x21DC2629U, 0x2C9F00F0U, 0x285E1D47U,
0x36194D42U, 0x32D850F5U, 0x3F9B762CU, 0x3B5A6B9BU,
0x0315D626U, 0x07D4CB91U, 0x0A97ED48U, 0x0E56F0FFU,
0x1011A0FAU, 0x14D0BD4DU, 0x19939B94U, 0x1D528623U,
0xF12F560EU, 0xF5EE4BB9U, 0xF8AD6D60U, 0xFC6C70D7U,
0xE22B20D2U, 0xE6EA3D65U, 0xEBA91BBCU, 0xEF68060BU,
0xD727BBB6U, 0xD3E6A601U, 0xDEA580D8U, 0xDA649D6FU,
0xC423CD6AU, 0xC0E2D0DDU, 0xCDA1F604U, 0xC960EBB3U,
0xBD3E8D7EU, 0xB9FF90C9U, 0xB4BCB610U, 0xB07DABA7U,
0xAE3AFBA2U, 0xAAFBE615U, 0xA7B8C0CCU, 0xA379DD7BU,
0x9B3660C6U, 0x9FF77D71U, 0x92B45BA8U, 0x9675461FU,
0x8832161AU, 0x8CF30BADU, 0x81B02D74U, 0x857130C3U,
0x5D8A9099U, 0x594B8D2EU, 0x5408ABF7U, 0x50C9B640U,
0x4E8EE645U, 0x4A4FFBF2U, 0x470CDD2BU, 0x43CDC09CU,
0x7B827D21U, 0x7F436096U, 0x7200464FU, 0x76C15BF8U,
0x68860BFDU, 0x6C47164AU, 0x61043093U, 0x65C52D24U,
0x119B4BE9U, 0x155A565EU, 0x18197087U, 0x1CD86D30U,
0x029F3D35U, 0x065E2082U, 0x0B1D065BU, 0x0FDC1BECU,
0x3793A651U, 0x3352BBE6U, 0x3E119D3FU, 0x3AD08088U,
0x2497D08DU, 0x2056CD3AU, 0x2D15EBE3U, 0x29D4F654U,
0xC5A92679U, 0xC1683BCEU, 0xCC2B1D17U, 0xC8EA00A0U,
0xD6AD50A5U, 0xD26C4D12U, 0xDF2F6BCBU, 0xDBEE767CU,
0xE3A1CBC1U, 0xE760D676U, 0xEA23F0AFU, 0xEEE2ED18U,
0xF0A5BD1DU, 0xF464A0AAU, 0xF9278673U, 0xFDE69BC4U,
0x89B8FD09U, 0x8D79E0BEU, 0x803AC667U, 0x84FBDBD0U,
0x9ABC8BD5U, 0x9E7D9662U, 0x933EB0BBU, 0x97FFAD0CU,
0xAFB010B1U, 0xAB710D06U, 0xA6322BDFU, 0xA2F33668U,
0xBCB4666DU, 0xB8757BDAU, 0xB5365D03U, 0xB1F740B4U,
};
while (len > 0){
crc = table[*data ^ ((crc >> 24) & 0xff)] ^ (crc << 8);
data++;
len--;
}
return crc;
}
long unsigned int Page::calcChecksum(){ //implement in sending out page, probably delete this -- probably don't delete this because this function appears to be in use
long unsigned int retVal = 0;
/*
long unsigned int oldChecksum = getCRCChecksum();
std::string fullPayload;
for (int i = 0; i < segments.size(); i++){
fullPayload += segments[i];
}
setCRCChecksum (0);
retVal = crc32(
crc32(0, data, 27 + getPageSegments()),//checksum over pageheader
fullPayload.data(),
fullPayload.size()
);//checksum over content
setCRCChecksum (oldChecksum);
*/
return retVal;
}
int Page::getPayloadSize(){
size_t res = 0;
for (int i = 0; i < segments.size(); i++){
res += segments[i].size();
}
return res;
}
const std::deque<std::string> & Page::getAllSegments(){
return segments;
}
void Page::prepareNext(bool continueMe){
clear(0, -1, getBitstreamSerialNumber(), getPageSequenceNumber() + 1);
if (continueMe){ //noting that the page will be continued
setHeaderType(OGG::Continued);
}
}
void Page::clear(char HeaderType, long long unsigned int GranPos, long unsigned int BSN, long unsigned int PSN){
memset(data, 0, 27);
setMagicNumber();
setVersion();
setHeaderType(HeaderType);
setGranulePosition(GranPos);
setBitstreamSerialNumber(BSN);
setPageSequenceNumber(PSN);
}
unsigned int Page::addSegment(const std::string & payload){ //returns added bytes
segments.push_back(payload);
return payload.size();
}
unsigned int Page::addSegment(const char * content, unsigned int length){
segments.push_back(std::string(content, length));
return length;
}
unsigned int Page::overFlow(){ //returns the amount of bytes that don't fit in this page from the segments;
unsigned int retVal = 0;
unsigned int curSegNum = 0;//the current segment number we are looking at
unsigned int segAmount = 0;
for (unsigned int i = 0; i < segments.size(); i++){
segAmount = (segments[i].size() / 255) + 1;
if (segAmount + curSegNum > 255){
retVal += ((segAmount - (255 - curSegNum + 1)) * 255) + (segments[i].size() % 255);//calculate the extra bytes that overflow
curSegNum = 255;//making sure the segment numbers are at maximum
} else {
curSegNum += segAmount;
}
}
return retVal;
}
void Page::vorbisStuff(){
Utils::bitstreamLSBF packet;
packet.append(oggSegments.rbegin()->dataString);//this is a heavy operation, it needs to be optimised //todo?
int curPCMSamples = 0;
long long unsigned int packetType = packet.get(1);
if (packetType == 0){
int tempModes = vorbis::ilog(vorbisModes.size() - 1);
int tempPacket = packet.get(tempModes);
int curBlockFlag = vorbisModes[tempPacket].blockFlag;
curPCMSamples = (1 << blockSize[curBlockFlag]);
if (prevBlockFlag != -1){
if (curBlockFlag == prevBlockFlag){
curPCMSamples /= 2;
} else {
curPCMSamples -= (1 << blockSize[0]) / 4 + (1 << blockSize[1]) / 4;
}
}
prevBlockFlag = curBlockFlag;
} else {
ERROR_MSG("Error, Vorbis packet type !=0 actual type: %llu",packetType );
}
//add to granule position
lastKeyFrame += curPCMSamples;
oggSegments.rbegin()->lastKeyFrameSeen = lastKeyFrame;
}
///this calculates the granule position for a DTSC packet
long long unsigned int Page::calculateGranule(oggSegment & currentSegment){
long long unsigned int tempGranule = 0;
if (codec == OGG::THEORA){
tempGranule = (currentSegment.lastKeyFrameSeen << split) | currentSegment.framesSinceKeyFrame;
} else if (codec == OGG::VORBIS){
tempGranule = currentSegment.lastKeyFrameSeen;
}
return tempGranule;
}
bool Page::shouldSend(){
unsigned int totalSegmentSize = 0;
if (!oggSegments.size()){
return false;
}
if (oggSegments.rbegin()->isKeyframe){
return true;
}
if (codec == OGG::VORBIS){
if (lastKeyFrame - firstSample >= sampleRate){
return true;
}
}
for (unsigned int i = 0; i < oggSegments.size(); i++){
totalSegmentSize += (oggSegments[i].dataString.size() / 255) + 1;
}
if (totalSegmentSize >= 255) return true;
return false;
}
///\todo Rewrite this
void Page::sendTo(Socket::Connection & destination, int calcGranule){ //combines all data and sends it to socket
if (!oggSegments.size()){
DEBUG_MSG(DLVL_HIGH, "!segments.size()");
return;
}
if (codec == OGG::VORBIS){
firstSample = lastKeyFrame;
}
int temp = 0;
long unsigned int checksum = 0; //reset checksum
setCRCChecksum(0);
unsigned int numSegments = oggSegments.size();
int tableIndex = 0;
char tableSize = 0;
//char table[255];
char * table = (char *)malloc(255);
int bytesLeft = 0;
for (unsigned int i = 0; i < numSegments; i++){
//calculate amount of 255 bytes needed to store size (remainder not counted)
temp = (oggSegments[i].dataString.size() / 255);
//if everything still fits in the table
if ((temp + tableIndex + 1) <= 255){
//set the 255 bytes
memset(table + tableIndex, 255, temp);
//increment tableIndex with 255 byte count
tableIndex += temp;
//set the last table entry to the remainder, and increase tableIndex with one
table[tableIndex++] = (oggSegments[i].dataString.size() % 255);
//update tableSize to be equal to tableIndex
tableSize = tableIndex;
bytesLeft = 0;
} else {
//stuff doesn't fit
//set the rest of the table to 255s
memset(table + tableIndex, 255, (255 - tableIndex));
//table size is full table in use
tableSize = 255;
//space left on current page, for this segment: (255-tableIndex)*255
bytesLeft = (255 - tableIndex) * 255;
if (oggSegments[i].dataString.size() == bytesLeft){
bytesLeft = 0; //segment barely fits.
}
break;
}
}
if (calcGranule < -1){
if (numSegments == 1 && bytesLeft){ //no segment ends on this page.
granules = -1;
} else {
unsigned int tempIndex = numSegments - 1;
if (bytesLeft != 0){
tempIndex = numSegments - 2;
}
granules = calculateGranule(oggSegments[tempIndex]);
}
} else {
granules = calcGranule; //force granule
}
setGranulePosition(granules);
checksum = crc32(checksum, data, 22);//calculating the checksum over the first part of the page
checksum = crc32(checksum, &tableSize, 1); //calculating the checksum over the segment Table Size
checksum = crc32(checksum, table, tableSize);//calculating the checksum over the segment Table
DEBUG_MSG(DLVL_DONTEVEN, "numSegments: %d", numSegments);
for (unsigned int i = 0; i < numSegments; i++){
//INFO_MSG("checksum, i: %d", i);
if (bytesLeft != 0 && ((i + 1) == numSegments)){
checksum = crc32(checksum, oggSegments[i].dataString.data(), bytesLeft);
//take only part of this segment
} else { //take the entire segment
checksum = crc32(checksum, oggSegments[i].dataString.data(), oggSegments[i].dataString.size());
}
}
setCRCChecksum(checksum);
destination.SendNow(data, 26);
destination.SendNow(&tableSize, 1);
destination.SendNow(table, tableSize);
for (unsigned int i = 0; i < numSegments; i++){
if (bytesLeft != 0 && ((i + 1) == numSegments)){
destination.SendNow(oggSegments.begin()->dataString.data(), bytesLeft);
oggSegments.begin()->dataString.erase(0, bytesLeft);
setHeaderType(OGG::Continued);//set continuation flag
break;
//for loop WILL exit after this.
} else {
destination.SendNow(oggSegments.begin()->dataString.data(), oggSegments.begin()->dataString.size());
//this segment WILL be deleted
oggSegments.erase(oggSegments.begin());
setHeaderType(OGG::Plain);//not a continuation
}
}
//done sending, assume start of new page.
//inc. page num, write to header
pageSequenceNumber++;
setPageSequenceNumber(pageSequenceNumber);
//granule still requires setting!
free(table);
return;
}
}

141
lib/ogg.h Normal file
View file

@ -0,0 +1,141 @@
#pragma once
#include <cstdlib>
#include <string>
#include <vector>
#include <deque>
#include <sstream>
#include "dtsc.h"
#include "theora.h"
#include "vorbis.h"
#include "socket.h"
namespace OGG {
class oggSegment {
public:
oggSegment();
std::string dataString;
int isKeyframe;
long long unsigned int lastKeyFrameSeen;
long long unsigned int framesSinceKeyFrame;
unsigned int frameNumber;
long long unsigned int timeStamp;
};
enum oggCodec {THEORA, VORBIS, OPUS};
enum HeaderType {
Plain = 0,
Continued = 1,
BeginOfStream = 2,
EndOfStream = 4
};
std::deque<unsigned int> decodeXiphSize(char * data, size_t len);
class Page {
public:
Page();
Page(const Page & rhs);
void operator = (const Page & rhs);
bool read(std::string & newData);
bool read(FILE * inFile);
bool getSegment(unsigned int index, std::string & ret);
const char * getSegment(unsigned int index);
unsigned long getSegmentLen(unsigned int index);
void setMagicNumber();
char getVersion();
void setVersion(char newVal = 0);
char getHeaderType();
void setHeaderType(char newVal);
long long unsigned int getGranulePosition();
void setGranulePosition(long long unsigned int newVal);
long unsigned int getBitstreamSerialNumber();
void setBitstreamSerialNumber(long unsigned int newVal);
long unsigned int getCRCChecksum();
void setCRCChecksum(long unsigned int newVal);
long unsigned int getPageSequenceNumber();
void setPageSequenceNumber(long unsigned int newVal);
char getPageSegments();//get the amount of page segments
inline void setPageSegments(char newVal);//set the amount of page segments
int getPayloadSize();
const std::deque<std::string> & getAllSegments();
bool possiblyContinued();
std::string toPrettyString(size_t indent = 0);
long unsigned int calcChecksum();
bool verifyChecksum();
unsigned int calcPayloadSize();
//void clear();
void clear(char HeaderType, long long unsigned int GranPos, long unsigned int BSN, long unsigned int PSN);
void prepareNext(bool continueMe = false);//prepare the page to become the next page
bool setPayload(char * newData, unsigned int length); //probably obsolete
unsigned int addSegment(const std::string & content); //add a segment to the page, returns added bytes
unsigned int addSegment(const char * content, unsigned int length); //add a segment to the page, returns added bytes
void sendTo(Socket::Connection & destination, int calcGranule = -2); //combines all data and sends it to socket
unsigned int setNextSegmentTableEntry(unsigned int entrySize);//returns the size that could not be added to the table
unsigned int overFlow();//returns the amount of bytes that don't fit in this page from the segments;
long long unsigned int calculateGranule(oggSegment & currentSegment);
bool shouldSend();
void vorbisStuff();//process most recent segment
long long unsigned int totalFrames;
int granules;
OGG::oggCodec codec;
std::deque<oggSegment> oggSegments; //used for ogg output
unsigned int pageSequenceNumber;
unsigned int framesSeen;
unsigned int lastKeyFrame;
unsigned int firstSample;//for vorbis, to handle "when to send the page"
unsigned int sampleRate;//for vorbis, to handle the sampleRate
int prevBlockFlag;
char blockSize[2];
std::deque<vorbis::mode> vorbisModes;//modes for vorbis
unsigned int split; //KFGShift for theora
private:
char data[282];//Fulldata
std::deque<std::string> segments;
};
class oggTrack {
public:
oggTrack() : KFGShift(0), lastTime(0), parsedHeaders(false), lastPageOffset(0), nxtSegment(0){ }
oggCodec codec;
std::string name;
std::string contBuffer;//buffer for continuing pages
long long unsigned int dtscID;
char KFGShift;
double lastTime;
long long unsigned int lastGran;
bool parsedHeaders;
long long unsigned int lastPageOffset;
unsigned int nxtSegment;
double msPerFrame;
Page myPage;
//Codec specific elements
//theora
// theora::header idHeader;//needed to determine keyframe //bullshit?
//vorbis
std::deque<vorbis::mode> vModes;
char channels;
long long unsigned int blockSize[2];
//unsigned long getBlockSize(unsigned int vModeIndex);
};
class headerPages {
public:
std::map <long long unsigned int, unsigned int> DTSCID2OGGSerial;
std::map <long long unsigned int, unsigned int> DTSCID2seqNum;
std::string parsedPages;
};
}

324
lib/theora.cpp
View file

@ -3,12 +3,13 @@
#include <string.h>
#include <arpa/inet.h>
#include <sstream>
#include "defines.h"
namespace theora {
bool header::checkDataSize(unsigned int size) {
if (size > datasize) {
bool header::checkDataSize(unsigned int size){
if (size > datasize){
void * tmp = realloc(data, size);
if (tmp) {
if (tmp){
data = (char *)tmp;
datasize = size;
return true;
@ -20,286 +21,241 @@ namespace theora {
}
}
uint32_t header::getInt32(size_t index) {
if (datasize >= (index + 3)) {
uint32_t header::getInt32(size_t index){
if (datasize >= (index + 3)){
return (data[index] << 24) + (data[index + 1] << 16) + (data[index + 2] << 8) + data[index + 3];
}
return 0;
}
uint32_t header::getInt24(size_t index) {
if (datasize >= (index + 2)) {
uint32_t header::getInt24(size_t index){
if (datasize >= (index + 2)){
return 0 + (data[index] << 16) + (data[index + 1] << 8) + data[index + 2];
}
return 0;
}
uint16_t header::getInt16(size_t index) {
if (datasize >= (index + 1)) {
uint16_t header::getInt16(size_t index){
if (datasize >= (index + 1)){
return 0 + (data[index] << 8) + data[index + 1];
}
return 0;
}
uint32_t header::commentLen(size_t index) {
if (datasize >= index + 3) {
uint32_t header::commentLen(size_t index){
if (datasize >= index + 3){
return data[index] + (data[index + 1] << 8) + (data[index + 2] << 16) + (data[index + 3] << 24);
}
return 0;
}
header::header() {
data = NULL;
datasize = 0;
header::header(char * newData, unsigned int length){
data = newData;
datasize = length;
}
header::header(char * newData, unsigned int length) {
data = NULL;
datasize = 0;
read(newData, length);
header::~header(){
}
bool header::validateIdentificationHeader() {
if (datasize != 42) {
bool isHeader(const char * newData, unsigned int length){
if (length < 7){
return false;
}
if (getHeaderType() != 0) {
if (! newData[0] & 0x80){
DEBUG_MSG(DLVL_FAIL, "newdata != 0x80: %0.2X", newData[0]);
return false;
}
if (getVMAJ() != 3) {
return false;
}
if (getVMIN() != 2) {
return false;
}
if (getFMBW() == 0) {
return false;
}
if (getFMBH() == 0) {
return false;
}
if ((short)getPICW() > getFMBW() * 16) {
return false;
}
if ((short)getPICH() > getFMBH() * 16) {
return false;
}
if ((short)getPICX() > (getFMBW() * 16) - (short)getPICW()) {
return false;
}
if ((short)getPICY() > (getFMBH() * 16) - (short)getPICH()) {
return false;
}
if (getFRN() == 0) {
return false;
}
if (getFRD() == 0) {
if (memcmp(newData + 1, "theora", 6) != 0){
return false;
}
return true;
}
bool header::read(char * newData, unsigned int length) {
if (length < 7) {
return false;
}
if (!(newData[0] & 0x80)) {
return false;
}
if (memcmp(newData + 1, "theora", 6) != 0) {
return false;
}
if (checkDataSize(length)) {
memcpy(data, newData, length);
} else {
return false;
}
switch (getHeaderType()) {
case 0:
return validateIdentificationHeader();
break;
case 1:
///\todo Read Comment header
break;
case 2:
///\todo Read Setup Header
break;
}
return true;
}
int header::getHeaderType() {
int header::getHeaderType(){
return (data[0] & 0x7F);
}
char header::getVMAJ() {
if (getHeaderType() == 0) {
char header::getVMAJ(){
if (getHeaderType() == 0){
return data[7];
}
return 0;
}
char header::getVMIN() {
if (getHeaderType() == 0) {
char header::getVMIN(){
if (getHeaderType() == 0){
return data[8];
}
return 0;
}
char header::getVREV() {
if (getHeaderType() == 0) {
char header::getVREV(){
if (getHeaderType() == 0){
return data[9];
}
return 0;
}
short header::getFMBW() {
if (getHeaderType() == 0) {
short header::getFMBW(){
if (getHeaderType() == 0){
return getInt16(10);
}
return 0;
}
short header::getFMBH() {
if (getHeaderType() == 0) {
short header::getFMBH(){
if (getHeaderType() == 0){
return getInt16(12);
}
return 0;
}
char header::getPICX() {
if (getHeaderType() == 0) {
char header::getPICX(){
if (getHeaderType() == 0){
return data[20];
}
return 0;
}
char header::getPICY() {
if (getHeaderType() == 0) {
char header::getPICY(){
if (getHeaderType() == 0){
return data[21];
}
return 0;
}
char header::getKFGShift() {
if (getHeaderType() == 0) {
char header::getKFGShift(){
if (getHeaderType() == 0){
return (getInt16(40) >> 5) & 0x1F;
}
return 0;
}
long unsigned int header::getFRN() {
if (getHeaderType() == 0) {
long unsigned int header::getFRN(){
if (getHeaderType() == 0){
return getInt32(22);
}
return 0;
}
long unsigned int header::getPICH() {
if (getHeaderType() == 0) {
long unsigned int header::getPICH(){
if (getHeaderType() == 0){
return getInt24(17);
}
return 0;
}
long unsigned int header::getPICW() {
if (getHeaderType() == 0) {
long unsigned int header::getPICW(){
if (getHeaderType() == 0){
return getInt24(14);
}
return 0;
}
long unsigned int header::getFRD() {
if (getHeaderType() == 0) {
long unsigned int header::getFRD(){
if (getHeaderType() == 0){
return getInt32(26);
}
return 0;
}
long unsigned int header::getPARN() {
if (getHeaderType() == 0) {
long unsigned int header::getPARN(){
if (getHeaderType() == 0){
return getInt24(30);
}
return 0;
}
long unsigned int header::getPARD() {
if (getHeaderType() == 0) {
long unsigned int header::getPARD(){
if (getHeaderType() == 0){
return getInt24(33);
}
return 0;
}
char header::getCS() {
if (getHeaderType() == 0) {
char header::getCS(){
if (getHeaderType() == 0){
return data[36];
}
return 0;
}
long unsigned int header::getNOMBR() {
if (getHeaderType() == 0) {
long unsigned int header::getNOMBR(){
if (getHeaderType() == 0){
return getInt24(37);
}
return 0;
}
char header::getQUAL() {
if (getHeaderType() == 0) {
char header::getQUAL(){
if (getHeaderType() == 0){
return (data[40] >> 3) & 0x1F;
}
return 0;
}
char header::getPF() {
if (getHeaderType() == 0) {
char header::getPF(){
if (getHeaderType() == 0){
return (data[41] >> 3) & 0x03;
}
return 0;
}
std::string header::getVendor() {
if (getHeaderType() != 1) {
std::string header::getVendor(){
if (getHeaderType() != 1){
return "";
}
return std::string(data + 11, commentLen(7));
}
long unsigned int header::getNComments() {
if (getHeaderType() != 1) {
long unsigned int header::getNComments(){
if (getHeaderType() != 1){
return 0;
}
int offset = 11 + commentLen(7);
return commentLen(offset);
}
char header::getLFLIMS(size_t index) {
if (getHeaderType() != 2) {
char header::getLFLIMS(size_t index){
if (getHeaderType() != 2){
return 0;
}
if (index >= 64) {
if (index >= 64){
return 0;
}
char NBITS = (data[0] >> 5) & 0x07;
return NBITS;
}
std::string header::getUserComment(size_t index) {
if (index >= getNComments()) {
std::string header::getUserComment(size_t index){
if (index >= getNComments()){
return "";
}
int offset = 11 + commentLen(7) + 4;
for (size_t i = 0; i < index; i++) {
for (size_t i = 0; i < index; i++){
offset += 4 + commentLen(offset);
}
return std::string(data + offset + 4, commentLen(offset));
}
std::string header::toPrettyString(size_t indent) {
char header::getFTYPE(){
return (data[0] >> 6) & 0x01;
}
bool header::isHeader(){
return ::theora::isHeader(data, datasize);
}
std::string header::toPrettyString(size_t indent){
std::stringstream result;
if(!isHeader()){
result << std::string(indent, ' ') << "Theora Frame" << std::endl;
result << std::string(indent + 2, ' ') << "FType: " << (int)getFTYPE() << std::endl;
return result.str();
}
result << std::string(indent, ' ') << "Theora header" << std::endl;
result << std::string(indent + 2, ' ') << "HeaderType: " << getHeaderType() << std::endl;
switch (getHeaderType()) {
switch (getHeaderType()){
case 0:
result << std::string(indent + 2, ' ') << "VMAJ: " << (int)getVMAJ() << std::endl;
result << std::string(indent + 2, ' ') << "VMIN: " << (int)getVMIN() << std::endl;
@ -322,7 +278,7 @@ namespace theora {
case 1:
result << std::string(indent + 2, ' ') << "Vendor: " << getVendor() << std::endl;
result << std::string(indent + 2, ' ') << "User Comments (" << getNComments() << "):" << std::endl;
for (long unsigned int i = 0; i < getNComments(); i++) {
for (long unsigned int i = 0; i < getNComments(); i++){
result << std::string(indent + 4, ' ') << "[" << i << "] " << getUserComment(i) << std::endl;
}
break;
@ -331,69 +287,79 @@ namespace theora {
}
return result.str();
}
/*
frame::frame(){
data = NULL;
datasize = 0;
}
frame::frame() {
data = NULL;
datasize = 0;
}
frame::~frame(){
if (data){
free(data);
}
data = 0;
}
bool frame::checkDataSize(unsigned int size) {
if (size > datasize) {
void * tmp = realloc(data, size);
if (tmp) {
data = (char *)tmp;
datasize = size;
bool frame::checkDataSize(unsigned int size){
if (size > datasize){
void * tmp = realloc(data, size);
if (tmp){
data = (char *)tmp;
datasize = size;
return true;
} else {
return false;
}
} else {
return true;
}
}
bool frame::read(const char * newData, unsigned int length){
if (length < 7){
return false;
}
if ((newData[0] & 0x80)){
return false;
}
if (checkDataSize(length)){
memcpy(data, newData, length);
} else {
return false;
}
} else {
return true;
}
}
bool frame::read(char * newData, unsigned int length) {
if (length < 7) {
return false;
}
if ((newData[0] & 0x80)) {
return false;
}
if (checkDataSize(length)) {
memcpy(data, newData, length);
} else {
return false;
}
return true;
}
char frame::getFTYPE() {
return (data[0] >> 6) & 0x01;
}
char frame::getNQIS() {
return 0;
}
char frame::getQIS(size_t index) {
if (index >= 3) {
char frame::getNQIS(){
return 0;
}
return 0;
}
long long unsigned int header::parseGranuleUpper(long long unsigned int granPos) {
return granPos >> getKFGShift();
}
char frame::getQIS(size_t index){
if (index >= 3){
return 0;
}
return 0;
}
*/
/*
long long unsigned int header::parseGranuleUpper(long long unsigned int granPos){
return granPos >> getKFGShift();
}
long long unsigned int header::parseGranuleLower(long long unsigned int granPos) {
return (granPos & ((1 << getKFGShift()) - 1));
}
std::string frame::toPrettyString(size_t indent) {
std::stringstream result;
result << std::string(indent, ' ') << "Theora Frame" << std::endl;
result << std::string(indent + 2, ' ') << "FType: " << (int)getFTYPE() << std::endl;
return result.str();
}
long long unsigned int header::parseGranuleLower(long long unsigned int granPos){
return (granPos & ((1 << getKFGShift()) - 1));
}*/
/*
std::string frame::toPrettyString(size_t indent){
std::stringstream result;
result << std::string(indent, ' ') << "Theora Frame" << std::endl;
result << std::string(indent + 2, ' ') << "FType: " << (int)getFTYPE() << std::endl;
return result.str();
}*/
}

53
lib/theora.h
View file

@ -4,11 +4,12 @@
#include<string>
namespace theora {
bool isHeader(const char * newData, unsigned int length);
class header {
public:
header();
header(char * newData, unsigned int length);
bool read(char * newData, unsigned int length);
public:
~header();
header(char * newData, unsigned int length); // if managed is true, this class manages the data pointer
int getHeaderType();
char getVMAJ();
char getVMIN();
@ -32,9 +33,13 @@ namespace theora {
long unsigned int getNComments();
std::string getUserComment(size_t index);
char getLFLIMS(size_t index);
std::string toPrettyString(size_t indent = 0);
long long unsigned int parseGranuleUpper(long long unsigned int granPos);
long long unsigned int parseGranuleLower(long long unsigned int granPos);
std::string toPrettyString(size_t indent = 0); //update this, it should check (header) type and output relevant stuff only.
//long long unsigned int parseGranuleUpper(long long unsigned int granPos);
//long long unsigned int parseGranuleLower(long long unsigned int granPos);
///\todo put this back in pravate
unsigned int datasize;
bool isHeader();
char getFTYPE();//for frames
protected:
uint32_t getInt32(size_t index);
uint32_t getInt24(size_t index);
@ -42,22 +47,22 @@ namespace theora {
uint32_t commentLen(size_t index);
private:
char * data;
unsigned int datasize;
bool checkDataSize(unsigned int size);
bool validateIdentificationHeader();
};
class frame {
public:
frame();
bool read(char * newData, unsigned int length);
char getFTYPE();
char getNQIS();
char getQIS(size_t index);
std::string toPrettyString(size_t indent = 0);
private:
char * data;
unsigned int datasize;
bool checkDataSize(unsigned int size);
bool checkDataSize(unsigned int size);
};
/*
class frame{ // we don't need this. I hope.
public:
frame();
~frame();
bool read(const char* newData, unsigned int length);
char getFTYPE();
char getNQIS();
char getQIS(size_t index);
std::string toPrettyString(size_t indent = 0);
private:
char * data;
unsigned int datasize;
bool checkDataSize(unsigned int size);
};*/
}

412
lib/vorbis.cpp
View file

@ -10,224 +10,236 @@
#include <cstdio>
#include <iostream>
namespace vorbis {
long long unsigned int reverseByte16(long long unsigned int input) {
namespace vorbis{
long long unsigned int reverseByte16(long long unsigned int input){
return ((input & 0xFF00) >> 8) | ((input & 0xFF) << 8);
}
long long unsigned int reverseByte24(long long unsigned int input) {
return ((input & 0xFF0000) >> 16) | (input & 0xFF00) | ((input & 0xFF) << 16);
long long unsigned int reverseByte24(long long unsigned int input){
return ((input & 0xFF0000) >> 16)| (input & 0xFF00) | ((input & 0xFF) << 16);
}
long long unsigned int reverseByte32(long long unsigned int input) {
return ((input & 0xFF000000) >> 24) | ((input & 0xFF0000) >> 8) | ((input & 0xFF00) << 8) | ((input & 0xFF) << 24);
long long unsigned int reverseByte32(long long unsigned int input){
return ((input & 0xFF000000) >> 24)| ((input & 0xFF0000) >> 8) | ((input & 0xFF00) << 8) | ((input & 0xFF) << 24);
}
header::header() {
data = NULL;
datasize = 0;
header::header(char * newData, unsigned int length){
data = newData;
datasize = length;
}
header::~header(){
}
header::header(char * newData, unsigned int length) {
data = NULL;
datasize = 0;
read(newData, length);
}
int header::getHeaderType() {
int header::getHeaderType(){
return (int)(data[0]);
}
long unsigned int header::getVorbisVersion() {
if (getHeaderType() == 1) {
long unsigned int header::getVorbisVersion(){
if (getHeaderType() == 1){
return getInt32(7);
} else {
}else{
return 0;
}
}
char header::getAudioChannels() {
if (getHeaderType() == 1) {
char header::getAudioChannels(){
if (getHeaderType() == 1){
return data[11];
} else {
}else{
return 0;
}
}
long unsigned int header::getAudioSampleRate() {
if (getHeaderType() == 1) {
long unsigned int header::getAudioSampleRate(){
if (getHeaderType() == 1){
return ntohl(getInt32(12));
} else {
}else{
return 0;
}
}
long unsigned int header::getBitrateMaximum() {
if (getHeaderType() == 1) {
long unsigned int header::getBitrateMaximum(){
if (getHeaderType() == 1){
return getInt32(16);
} else {
}else{
return 0;
}
}
long unsigned int header::getBitrateNominal() {
if (getHeaderType() == 1) {
long unsigned int header::getBitrateNominal(){
if (getHeaderType() == 1){
return getInt32(20);
} else {
}else{
return 0;
}
}
long unsigned int header::getBitrateMinimum() {
if (getHeaderType() == 1) {
long unsigned int header::getBitrateMinimum(){
if (getHeaderType() == 1){
return getInt32(24);
} else {
}else{
return 0;
}
}
char header::getBlockSize0() {
if (getHeaderType() == 1) {
char header::getBlockSize0(){
if (getHeaderType() == 1){
return data[28] & 0x0F;
} else {
}else{
return 0;
}
}
char header::getBlockSize1() {
if (getHeaderType() == 1) {
return (data[28] >> 4) & 0x0F;
} else {
char header::getBlockSize1(){
if (getHeaderType() == 1){
return (data[28]>>4) & 0x0F;
}else{
return 0;
}
}
char header::getFramingFlag() {
if (getHeaderType() == 1) {
char header::getFramingFlag(){
if (getHeaderType() == 1){
return data[29];
} else {
}else{
return 0;
}
}
bool header::checkDataSize(unsigned int size) {
if (size > datasize) {
void * tmp = realloc(data, size);
if (tmp) {
data = (char *)tmp;
bool header::checkDataSize(unsigned int size){
if (size > datasize){
void* tmp = realloc(data,size);
if (tmp){
data = (char*)tmp;
datasize = size;
return true;
} else {
}else{
return false;
}
} else {
}else{
return true;
}
}
bool header::validate() {
switch (getHeaderType()) {
bool header::validate(){
switch(getHeaderType()){
case 1://ID header
if (datasize != 30) {
if (datasize!=30){
return false;
}
if (getVorbisVersion() != 0) {
if (getVorbisVersion()!=0){
return false;
}
if (getAudioChannels() <= 0) {
if (getAudioChannels()<=0){
return false;
};
if (getAudioSampleRate() <= 0) {
if (getAudioSampleRate()<=0) {
return false;
}
if (getBlockSize0() > getBlockSize1()) {
if (getBlockSize0()>getBlockSize1()){
return false;
};
if (getFramingFlag() != 1) {
if (getFramingFlag()!=1){
return false;
};
break;
break;
case 3://comment header
break;
break;
case 5://init header
break;
break;
default:
return false;
break;
break;
}
return true;
}
bool header::read(char * newData, unsigned int length) {
if (length < 7) {
bool isHeader(const char * newData, unsigned int length){
if (length < 7){
return false;
}
if (memcmp(newData + 1, "vorbis", 6) != 0) {
if(memcmp(newData+1, "vorbis", 6)!=0){
return false;
}
return true;
}
bool header::isHeader(){
return ::vorbis::isHeader(data, datasize);
}
/*
bool header::read(const char* newData, unsigned int length){
if (length < 7){
return false;
}
if(memcmp(newData+1, "vorbis", 6)!=0){
return false;
}
if (checkDataSize(length)) {
if (checkDataSize(length)){
memcpy(data, newData, length);
} else {
}else{
return false;
}
return true;
}
std::deque<mode> header::readModeDeque(char audioChannels) {
}*/
std::deque<mode> header::readModeDeque(char audioChannels){
Utils::bitstreamLSBF stream;
stream.append(data, datasize);
stream.append(data,datasize);
stream.skip(28); //skipping common header part
stream.skip(28); //skipping common header part
char codebook_count = stream.get(8) + 1;
for (int i = 0; i < codebook_count; i++) {
for (int i = 0; i < codebook_count; i++){
long long unsigned int CMN = stream.get(24);
if (CMN != 0x564342) {
DEBUG_MSG(DLVL_WARN, "Is dit het? VCB != %c%c%c", (char)(CMN >> 16), (char)(CMN >> 8), (char)CMN);
if (CMN != 0x564342){
DEBUG_MSG(DLVL_WARN,"Is dit het? VCB != %c%c%c", (char)(CMN >> 16), (char)(CMN >> 8), (char)CMN);
exit(1);
}
unsigned short codebook_dimensions = stream.get(16);
unsigned int codebook_entries = stream.get(24);
bool orderedFlag = stream.get(1);
if (!orderedFlag) {
if (!orderedFlag){
bool sparseFlag = stream.get(1);
if (sparseFlag) { //sparse flag
if (sparseFlag){//sparse flag
//sparse handling
for (unsigned int o = 0; o < codebook_entries; o++) {
if (stream.get(1)) {
for (unsigned int o = 0; o < codebook_entries; o++){
if (stream.get(1)){
stream.skip(5);
}
}
} else {
for (unsigned int o = 0; o < codebook_entries; o++) {
}else{
for (unsigned int o = 0; o < codebook_entries; o++){
stream.skip(5);
}
}
} else {
}else{
//ordered handling
stream.skip(5);
for (unsigned int o = 0; o < codebook_entries; o++) {
int readnow = (std::log(codebook_entries - o)) / (std::log(2)) + 1;
o += stream.get(readnow);
for (unsigned int o = 0; o < codebook_entries; o++){
int readnow = (std::log(codebook_entries-o))/(std::log(2))+1;
o+=stream.get(readnow);
}
}
char codebook_lookup_type = stream.get(4);
if (codebook_lookup_type != 0) {
if (codebook_lookup_type != 0){
stream.skip(32);
stream.skip(32);
char codebook_value_bits = stream.get(4) + 1;
stream.skip(1);
unsigned int codebook_lookup_value;
if (codebook_lookup_type == 1) {
codebook_lookup_value = std::pow(codebook_entries, (1.0 / codebook_dimensions));
} else {
if (codebook_lookup_type == 1){
codebook_lookup_value = std::pow(codebook_entries, (1.0/codebook_dimensions));
}else{
codebook_lookup_value = codebook_entries * codebook_dimensions;
}
for (unsigned int i = 0; i < codebook_lookup_value; i++) {
for (unsigned int i = 0; i < codebook_lookup_value; i++){
stream.skip(codebook_value_bits);
}
}
@ -235,140 +247,140 @@ namespace vorbis {
//end of codebooks
//time domain transforms
long long unsigned int TDT = stream.get(6) + 1;
for (unsigned int i = 0; i < TDT; i++) {
for (unsigned int i = 0; i < TDT; i++){
stream.skip(16);
}
//Floors
long long unsigned int floors = stream.get(6) + 1;
for (unsigned int i = 0; i < floors; i++) {
for (unsigned int i = 0; i < floors; i++){
long long unsigned int floorType = stream.get(16);
switch (floorType) {
case 0: {
DEBUG_MSG(DLVL_WARN, "FloorType 0 in vorbis setup header not tested!");
stream.skip(8);//order
stream.skip(16);//rate
stream.skip(16);//bark_map_size
stream.skip(6);//amplitude bits
stream.skip(8);//amplitude offset
long long unsigned int numberOfBooks = stream.get(4) + 1;
for (unsigned int o = 0; o < numberOfBooks; o++) {
stream.skip(8);//book list array
}
break;
switch(floorType){
case 0:{
DEBUG_MSG(DLVL_WARN, "FloorType 0 in vorbis setup header not tested!");
stream.skip(8);//order
stream.skip(16);//rate
stream.skip(16);//bark_map_size
stream.skip(6);//amplitude bits
stream.skip(8);//amplitude offset
long long unsigned int numberOfBooks = stream.get(4)+1;
for (unsigned int o = 0; o < numberOfBooks; o++){
stream.skip(8);//book list array
}
case 1: {
long long unsigned int floorPartitions = stream.get(5);
long long int max = -1;
std::deque<int> partition_class;
for (unsigned int o = 0; o < floorPartitions; o++) {
long long int temp = stream.get(4);
partition_class.push_back(temp);
if (temp > max) max = temp;
}
std::deque<int> class_dimensions;
for (int o = 0; o <= max; o++) {
class_dimensions.push_back(stream.get(3) + 1); //class dimensions PUT IN ARRAY!
int class_subclass = stream.get(2);
if (class_subclass != 0) {
stream.skip(8);//class_master_books
}
for (int p = 0; p < (1 << class_subclass); p++) {
stream.skip(8);
}
}
stream.skip(2);//floor1_multiplier
int rangebits = stream.get(4);//rangebits
long long unsigned int count = 0;
long long unsigned int skipper = 0;
for (unsigned int o = 0; o < floorPartitions; o++) {
count += class_dimensions[(partition_class[o])];
while (skipper < count) {
stream.skip(rangebits);
skipper ++;
}
}
break;
break;
}
case 1:{
long long unsigned int floorPartitions = stream.get(5);
long long int max = -1;
std::deque<int> partition_class;
for (unsigned int o = 0; o < floorPartitions; o++){
long long int temp = stream.get(4);
partition_class.push_back(temp);
if (temp>max) max = temp;
}
std::deque<int> class_dimensions;
for (int o = 0; o <= max; o++){
class_dimensions.push_back(stream.get(3)+1);//class dimensions PUT IN ARRAY!
int class_subclass = stream.get(2);
if (class_subclass !=0){
stream.skip(8);//class_master_books
}
for (int p = 0; p < (1<<class_subclass); p++){
stream.skip(8);
}
}
stream.skip(2);//floor1_multiplier
int rangebits = stream.get(4);//rangebits
long long unsigned int count = 0;
long long unsigned int skipper = 0;
for (unsigned int o = 0; o < floorPartitions; o++){
count += class_dimensions[(partition_class[o])];
while (skipper < count){
stream.skip(rangebits);
skipper ++;
}
}
break;
}
default:
exit(0);
exit(0);
}
}
//Residues
long long unsigned int residues = stream.get(6) + 1;
for (unsigned int i = 0; i < residues; i++) {
for(unsigned int i = 0; i < residues; i++){
std::deque<char> residueCascade;
long long unsigned int residueType = stream.get(16);
if (residueType <= 2) {
if(residueType<=2){
stream.skip(24);//residue begin
stream.skip(24);//residue end
stream.skip(24);//residue partition size
long long unsigned int residueClass = stream.get(6) + 1; //residue classifications
long long unsigned int residueClass = stream.get(6)+1;//residue classifications
stream.skip(8);//residue classbook
for (unsigned int o = 0; o < residueClass; o++) {
for (unsigned int o = 0; o < residueClass; o++){
char temp = stream.get(3);//low bits
bool bitFlag = stream.get(1);
if (bitFlag) {
if (bitFlag){
temp += stream.get(5) << 3;
}
residueCascade.push_back(temp);
}
for (unsigned int o = 0; o < residueClass; o++) {
for (unsigned int p = 0; p < 7; p++) {
if (((residueCascade[o] >> p) & 1) == 1) {
for (unsigned int o = 0; o < residueClass; o++){
for (unsigned int p = 0; p < 7; p++){
if (((residueCascade[o] >> p) & 1) == 1){
stream.skip(8);
} else {
}else{
}
}
}
} else {
}else{
exit(0);
}
}
//Mappings
long long unsigned int mappings = stream.get(6) + 1;
for (unsigned int i = 0; i < mappings; i++) {
for(unsigned int i = 0; i < mappings; i++){
long long unsigned int mapType = stream.get(16);
if (mapType == 0) {
if (mapType == 0){
char mappingSubmaps = 1;
if (stream.get(1) == 1) {
if (stream.get(1)==1){
mappingSubmaps = stream.get(4);//vorbis mapping submaps
}
long long unsigned int coupling_steps = 0;
if (stream.get(1) == 1) {
coupling_steps = stream.get(8) + 1;
for (unsigned int o = 0; o < coupling_steps; o++) {
int temp = (std::log((audioChannels - o) - 1)) / (std::log(2)) + 1;
if (temp > 0) {
if (stream.get(1)==1){
coupling_steps = stream.get(8)+1;
for (unsigned int o = 0; o<coupling_steps; o++){
int temp = (std::log((audioChannels-o)-1))/(std::log(2)) + 1;
if (temp>0){
stream.skip(temp);//mapping magnitude
stream.skip(temp);//mapping angle
}
}
}
char meh = stream.get(2);
if (meh != 0) {
if (meh != 0){
DEBUG_MSG(DLVL_ERROR, "Sanity check ==0 : %i", (int)meh);
exit(0);
}
if (mappingSubmaps > 1) {
for (int o = 0; o < audioChannels; o++) {
if (mappingSubmaps > 1){
for (int o = 0; o < audioChannels; o++){
stream.skip(4);
}
}
for (int o = 0; o < mappingSubmaps; o++) {
for (int o = 0; o < mappingSubmaps; o++){
stream.skip(8);//placeholder
stream.skip(8);//vorbis Mapping subfloor
stream.skip(8);//vorbis mapping submap residue
}
} else {
}else{
exit(0);
}
}
//Modes
long long unsigned int modes = stream.get(6) + 1;
std::deque<mode> retVal;
for (unsigned int i = 0; i < modes; i++) {
for (unsigned int i = 0; i < modes; i++){
mode temp;
temp.blockFlag = stream.get(1);
temp.windowType = stream.get(16);
@ -380,46 +392,46 @@ namespace vorbis {
return retVal;
}
uint32_t header::getInt32(size_t index) {
if (datasize >= (index + 3)) {
uint32_t header::getInt32(size_t index){
if (datasize >= (index + 3)){
return (data[index] << 24) + (data[index + 1] << 16) + (data[index + 2] << 8) + data[index + 3];
}
return 0;
}
uint32_t header::getInt24(size_t index) {
if (datasize >= (index + 2)) {
uint32_t header::getInt24(size_t index){
if (datasize >= (index + 2)){
return 0 + (data[index] << 16) + (data[index + 1] << 8) + data[index + 2];
}
return 0;
}
uint16_t header::getInt16(size_t index) {
if (datasize >= (index + 1)) {
uint16_t header::getInt16(size_t index){
if (datasize >= (index + 1)){
return 0 + (data[index] << 8) + data[index + 1];
}
return 0;
}
std::string header::toPrettyString(size_t indent) {
std::string header::toPrettyString(size_t indent){
std::stringstream r;
r << std::string(indent + 1, ' ') << "Vorbis Header" << std::endl;
r << std::string(indent + 2, ' ') << "Magic Number: " << std::string(data + 1, 6) << std::endl;
r << std::string(indent + 2, ' ') << "Header Type: " << getHeaderType() << std::endl;
if (getHeaderType() == 1) {
r << std::string(indent + 2, ' ') << "ID Header" << std::endl;
r << std::string(indent + 2, ' ') << "VorbisVersion: " << getVorbisVersion() << std::endl;
r << std::string(indent + 2, ' ') << "AudioChannels: " << (int)getAudioChannels() << std::endl;
r << std::string(indent + 2, ' ') << "BitrateMaximum: " << std::hex << getBitrateMaximum() << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "BitrateNominal: " << std::hex << getBitrateNominal() << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "BitrateMinimum: " << std::hex << getBitrateMinimum() << std::dec << std::endl;
r << std::string(indent + 2, ' ') << "BlockSize0: " << (int)getBlockSize0() << std::endl;
r << std::string(indent + 2, ' ') << "BlockSize1: " << (int)getBlockSize1() << std::endl;
r << std::string(indent + 2, ' ') << "FramingFlag: " << (int)getFramingFlag() << std::endl;
} else if (getHeaderType() == 3) {
r << std::string(indent + 2, ' ') << "Comment Header" << std::endl;
} else if (getHeaderType() == 5) {
r << std::string(indent + 2, ' ') << "Setup Header" << std::endl;
r << std::string(indent+1,' ') << "Vorbis Header" << std::endl;
r << std::string(indent+2,' ') << "Magic Number: " << std::string(data + 1,6) << std::endl;
r << std::string(indent+2,' ') << "Header Type: " << getHeaderType() << std::endl;
if (getHeaderType() == 1){
r << std::string(indent+2,' ') << "ID Header" << std::endl;
r << std::string(indent+2,' ') << "VorbisVersion: " << getVorbisVersion() << std::endl;
r << std::string(indent+2,' ') << "AudioChannels: " << (int)getAudioChannels() << std::endl;
r << std::string(indent+2,' ') << "BitrateMaximum: " << std::hex << getBitrateMaximum() << std::dec << std::endl;
r << std::string(indent+2,' ') << "BitrateNominal: " << std::hex << getBitrateNominal() << std::dec << std::endl;
r << std::string(indent+2,' ') << "BitrateMinimum: " << std::hex << getBitrateMinimum() << std::dec << std::endl;
r << std::string(indent+2,' ') << "BlockSize0: " << (int)getBlockSize0() << std::endl;
r << std::string(indent+2,' ') << "BlockSize1: " << (int)getBlockSize1() << std::endl;
r << std::string(indent+2,' ') << "FramingFlag: " << (int)getFramingFlag() << std::endl;
} else if (getHeaderType() == 3){
r << std::string(indent+2,' ') << "Comment Header" << std::endl;
} else if (getHeaderType() == 5){
r << std::string(indent+2,' ') << "Setup Header" << std::endl;
}
return r.str();
}

30
lib/vorbis.h
View file

@ -5,23 +5,23 @@
#include <string>
#include <deque>
namespace vorbis {
struct mode {
namespace vorbis{
struct mode{
bool blockFlag;
unsigned short windowType;
unsigned short transformType;
char mapping;
};
inline unsigned int ilog(unsigned int input) {
return (std::log(input)) / (std::log(2)) + 1;
inline unsigned int ilog(unsigned int input){
return (std::log(input))/(std::log(2))+1;
}
class header {
public:
header();
header(char * newData, unsigned int length);
bool read(char * newData, unsigned int length);
bool isHeader(const char * newData, unsigned int length);
class header{
public:
~header();
header(char* newData, unsigned int length);
int getHeaderType();
long unsigned int getVorbisVersion();
char getAudioChannels();
@ -34,15 +34,19 @@ namespace vorbis {
char getFramingFlag();
std::string toPrettyString(size_t indent = 0);
std::deque<mode> readModeDeque(char audioChannels);
bool isHeader();
unsigned int getDataSize(){
return datasize;
}
protected:
uint32_t getInt32(size_t index);
uint32_t getInt24(size_t index);
uint16_t getInt16(size_t index);
private:
std::deque<mode> modes;
char * data;
char* data;
unsigned int datasize;
bool checkDataSize(unsigned int size);
bool validate();
};
};
}