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fix Input out of bounds of slice #132

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fix Input out of bounds of slice #132

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22 changes: 12 additions & 10 deletions go-ogg/ogg-demuxer.go
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Original file line number Diff line number Diff line change
Expand Up @@ -157,16 +157,18 @@ func (demuxer *Demuxer) Input(buf []byte) (err error) {
} else if stream.lost == 0 && page.isContinuePacket {
appendLen := 0
for ; idx < int(page.segmentsCount); idx++ {
appendLen += int(page.seqmentTable[idx])
if page.seqmentTable[idx] < 255 {
stream.cache = append(stream.cache, tmp[:appendLen]...)
if demuxer.OnPacket != nil {
demuxer.OnPacket(stream.streamId, stream.currentPage.granulePos, stream.cache, 0)
}
page.packets = append(page.packets, stream.cache)
stream.cache = stream.cache[:0]
tmp = tmp[appendLen:]
}
//fix out of bound of tmp
curSegLen := int(page.seqmentTable[idx])
appendLen += curSegLen
if page.seqmentTable[idx] < 255 {
stream.cache = append(stream.cache, tmp[:curSegLen]...)
if demuxer.OnPacket != nil {
demuxer.OnPacket(stream.streamId, stream.currentPage.granulePos, stream.cache, 0)
}
page.packets = append(page.packets, stream.cache)
stream.cache = stream.cache[:0]
tmp = tmp[curSegLen:]
}
}
}

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