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Fix for handling negative h264 offsets in mp4

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This commit is contained in:
Erik Zandvliet 2016-04-06 11:38:49 +02:00
parent 3b9911df71
commit 4c2eeb96c8
5 changed files with 14 additions and 12 deletions
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6
lib/mp4_generic.cpp
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@ -2575,7 +2575,8 @@ namespace MP4 {
setEntryCount(no + 1);
}
setInt32(newCTTSEntry.sampleCount, 8 + no * 8);
setInt32(newCTTSEntry.sampleOffset, 8 + (no * 8) + 4);
setInt32(*(reinterpret_cast<uint32_t*>(&newCTTSEntry.sampleOffset)), 8 + (no * 8) + 4);
}
CTTSEntry CTTS::getCTTSEntry(uint32_t no) {
@ -2585,7 +2586,8 @@ namespace MP4 {
return inval;
}
retval.sampleCount = getInt32(8 + (no * 8));
retval.sampleOffset = getInt32(8 + (no * 8) + 4);
uint32_t tmp = getInt32(8 + (no * 8) + 4);
retval.sampleOffset = *(reinterpret_cast<int32_t*>(&tmp));
return retval;
}

2
lib/mp4_generic.h
View file

@ -538,7 +538,7 @@ namespace MP4 {
struct CTTSEntry {
uint32_t sampleCount;
uint32_t sampleOffset;
int32_t sampleOffset;
};
class CTTS: public fullBox {