Do not ignore non zero RIFF padding if leading to parse error (#882)

This commit is contained in:
Urs Fleisch 2018-12-19 16:41:28 +01:00
parent 5cb589a5b8
commit 1cf176af61

View File

@ -325,9 +325,20 @@ void RIFF::File::read()
if(offset & 1) {
seek(offset);
const ByteVector iByte = readBlock(1);
if(iByte.size() == 1 && iByte[0] == '\0') {
chunk.padding = 1;
offset++;
if(iByte.size() == 1) {
bool skipPadding = iByte[0] == '\0';
if(!skipPadding) {
// Padding byte is not zero, check if it is good to ignore it
const ByteVector fourCcAfterPadding = readBlock(4);
if(isValidChunkName(fourCcAfterPadding)) {
// Use the padding, it is followed by a valid chunk name.
skipPadding = true;
}
}
if(skipPadding) {
chunk.padding = 1;
offset++;
}
}
}