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AVCCBox.multiplyPPS(), allow for multiple SPS/PPS in AVCC Box

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This commit is contained in:
Erik Zandvliet 2018-08-30 18:36:14 +02:00 • committed by Thulinma
parent b8c932ad1c
commit 493e5bebfa
7 changed files with 40 additions and 13 deletions
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23
lib/mp4_generic.cpp
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@ -1,5 +1,6 @@
#include "mp4_generic.h"
#include "defines.h"
#include "h264.h"
#include "h265.h"
namespace MP4 {
@ -683,6 +684,28 @@ namespace MP4 {
return payload() + offset + 2;
}
void AVCC::multiplyPPS(size_t newAmount){
if (getPPSCount() != 1){
WARN_MSG("We do not have a single PPS, ignoring multiplication");
return;
}
h264::ppsUnit PPS(getPPS(), getPPSLen());
std::deque<std::string> allPPS;
for (size_t i = 0; i < newAmount; i++){
PPS.setPPSNumber(i);
allPPS.push_back(PPS.generate());
}
setPPSCount(allPPS.size());
size_t offset = 8 + getSPSLen() + 1;
for (std::deque<std::string>::iterator it = allPPS.begin(); it != allPPS.end(); it++){
setInt16(it->size(), offset);
for (unsigned int i = 0; i < it->size(); i++) {
setInt8(it->at(i), offset + 2 + i);
} //not null-terminated
offset += it->size() + 2;
}
}
std::string AVCC::toPrettyString(uint32_t indent) {
std::stringstream r;
r << std::string(indent, ' ') << "[avcC] H.264 Init Data (" << boxedSize() << ")" << std::endl;