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libmist backport from new metadata branch with improved typing and styling

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This commit is contained in:
Erik Zandvliet 2018-11-28 12:16:00 +01:00 • committed by Thulinma
parent 7a03d3e96c
commit 10fa4b7e7b
88 changed files with 5957 additions and 5757 deletions
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124
lib/mp4.cpp
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@ -10,6 +10,7 @@
#include "json.h"
#include "defines.h"
#include "bitfields.h"
/// Contains all MP4 format related code.
namespace MP4 {
@ -80,7 +81,7 @@ namespace MP4 {
payloadOffset = rs.payloadOffset;
}
/// Returns the values at byte positions 4 through 7.
std::string Box::getType() {
std::string Box::getType() const {
return std::string(data + 4, 4);
}
@ -190,7 +191,7 @@ namespace MP4 {
}
/// Returns the total boxed size of this box, including the header.
uint64_t Box::boxedSize() {
uint64_t Box::boxedSize() const {
if (payloadOffset == 16) {
return ((uint64_t)ntohl(((int *)data)[2]) << 32) | ntohl(((int *)data)[3]);
}
@ -199,7 +200,7 @@ namespace MP4 {
/// Retruns the size of the payload of thix box, excluding the header.
/// This value is defined as boxedSize() - 8.
uint64_t Box::payloadSize() {
uint64_t Box::payloadSize() const {
return boxedSize() - payloadOffset;
}
@ -232,7 +233,7 @@ namespace MP4 {
/// 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(uint32_t indent) {
std::string Box::toPrettyString(uint32_t indent) const {
switch (ntohl(*((int *)(data + 4)))) { //type is at this address
case 0x6D666864:
return ((MFHD *)this)->toPrettyString(indent);
@ -382,10 +383,10 @@ namespace MP4 {
return ((HEV1 *)this)->toPrettyString(indent);
break;
case 0x61766331:
case 0x656E6376://encv
return ((AVC1 *)this)->toPrettyString(indent);
break;
case 0x68323634://h264
case 0x656E6376://encv
return ((H264 *)this)->toPrettyString(indent);
break;
case 0x6669656C:
@ -451,9 +452,24 @@ namespace MP4 {
INFO_MSG("FTAB box found!");
return ((FontTableBox *)this)->toPrettyString(indent);
break;
case 0x70737368:
return ((PSSH *)this)->toPrettyString(indent);
break;
case 0x73656E63:
return ((SENC *)this)->toPrettyString(indent);
break;
case 0x74656E63:
return ((TENC *)this)->toPrettyString(indent);
break;
case 0x7361697A:
return ((SAIZ *)this)->toPrettyString(indent);
break;
case 0x7361696F:
return ((SAIO *)this)->toPrettyString(indent);
break;
/*LTS-END*/
default:
INFO_MSG("no code found: 0x%0.8x",ntohl(*((int *)(data + 4))));
INFO_MSG("no code found: 0x%.8x",Bit::btohl(data + 4));
break;
}
std::stringstream retval;
@ -489,6 +505,16 @@ namespace MP4 {
return data[index];
}
/// Gets the 8 bits integer at the given index.
/// Returns zero if out of bounds.
char Box::getInt8(size_t index) const {
index += payloadOffset;
if (index >= boxedSize()) {
return 0;
}
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.
@ -499,8 +525,7 @@ namespace MP4 {
return;
}
}
newData = htons(newData);
memcpy(data + index, (char *) &newData, 2);
Bit::htobs(data + index, newData);
}
/// Gets the 16 bits integer at the given index.
@ -514,9 +539,18 @@ namespace MP4 {
}
setInt16(0, index - payloadOffset);
}
short result;
memcpy((char *) &result, data + index, 2);
return ntohs(result);
return Bit::btohs(data + index);
}
/// 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) const {
index += payloadOffset;
if (index + 1 >= boxedSize()) {
return 0;
}
return Bit::btohs(data + index);
}
/// Sets the 24 bits integer at the given index.
@ -529,9 +563,7 @@ namespace MP4 {
return;
}
}
data[index] = (newData & 0x00FF0000) >> 16;
data[index + 1] = (newData & 0x0000FF00) >> 8;
data[index + 2] = (newData & 0x000000FF);
Bit::htob24(data + index, newData);
}
/// Gets the 24 bits integer at the given index.
@ -545,12 +577,18 @@ namespace MP4 {
}
setInt24(0, index - payloadOffset);
}
uint32_t result = data[index];
result <<= 8;
result += data[index + 1];
result <<= 8;
result += data[index + 2];
return result;
return Bit::btoh24(data + index);
}
/// 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.
uint32_t Box::getInt24(size_t index) const {
index += payloadOffset;
if (index + 2 >= boxedSize()) {
return 0;
}
return Bit::btoh24(data + index);
}
/// Sets the 32 bits integer at the given index.
@ -563,7 +601,7 @@ namespace MP4 {
return;
}
}
((int *)(data + index))[0] = htonl(newData);
Bit::htobl(data + index, newData);
}
/// Gets the 32 bits integer at the given index.
@ -577,7 +615,18 @@ namespace MP4 {
}
setInt32(0, index - payloadOffset);
}
return ntohl(((int *)(data + index))[0]);
return Bit::btohl(data + index);
}
/// 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.
uint32_t Box::getInt32(size_t index) const {
index += payloadOffset;
if (index + 3 >= boxedSize()) {
return 0;
}
return Bit::btohl(data + index);
}
/// Sets the 64 bits integer at the given index.
@ -590,8 +639,7 @@ namespace MP4 {
return;
}
}
((int *)(data + index))[0] = htonl((int)(newData >> 32));
((int *)(data + index))[1] = htonl((int)(newData & 0xFFFFFFFF));
Bit::htobll(data + index, newData);
}
/// Gets the 64 bits integer at the given index.
@ -605,10 +653,18 @@ namespace MP4 {
}
setInt64(0, index - payloadOffset);
}
uint64_t result = ntohl(((int *)(data + index))[0]);
result <<= 32;
result += ntohl(((int *)(data + index))[1]);
return result;
return Bit::btohll(data + index);
}
/// 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.
uint64_t Box::getInt64(size_t index) const {
index += payloadOffset;
if (index + 7 >= boxedSize()) {
return 0;
}
return Bit::btohll(data + index);
}
/// Sets the NULL-terminated string at the given index.
@ -653,7 +709,7 @@ namespace MP4 {
/// 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) {
size_t Box::getStringLen(size_t index) const {
index += payloadOffset;
if (index >= boxedSize()) {
return 0;
@ -682,8 +738,8 @@ namespace MP4 {
/// 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()) {
size_t Box::getBoxLen(size_t index) const {
if ((index + payloadOffset + 8) >= boxedSize()) {
return 0;
}
return calcBoxSize(data + index + payloadOffset);
@ -746,7 +802,7 @@ namespace MP4 {
setInt8(newVersion, 0);
}
char fullBox::getVersion() {
char fullBox::getVersion() const {
return getInt8(0);
}
@ -754,11 +810,11 @@ namespace MP4 {
setInt24(newFlags, 1);
}
uint32_t fullBox::getFlags() {
uint32_t fullBox::getFlags() const {
return getInt24(1);
}
std::string fullBox::toPrettyString(uint32_t indent) {
std::string fullBox::toPrettyString(uint32_t indent) const {
std::stringstream r;
r << std::string(indent + 1, ' ') << "Version: " << (int)getVersion() << std::endl;
r << std::string(indent + 1, ' ') << "Flags: " << getFlags() << std::endl;