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atrac3: Allocate some extra bytes for the data buffer to workaround decoder bug.

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This commit is contained in:
Henrik Rydgård 2022-09-09 09:55:01 +02:00
parent f3c097680e
commit 818334c592
1 changed files with 6 additions and 1 deletions
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7
Core/HLE/sceAtrac.cpp
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@ -1948,7 +1948,12 @@ static int _AtracSetData(Atrac *atrac, u32 buffer, u32 readSize, u32 bufferSize,
const char *codecName = atrac->codecType_ == PSP_MODE_AT_3 ? "atrac3" : "atrac3+";
const char *channelName = atrac->channels_ == 1 ? "mono" : "stereo";
atrac->dataBuf_ = new u8[atrac->first_.filesize];
// Over-allocate databuf to prevent going off the end if the bitstream is bad or if there are
// bugs in the decoder. This happens, see issue #15788. Arbitrary, but let's make it a whole page on the popular
// architecture that has the largest pages (M1).
const size_t overAllocBytes = 16384;
atrac->dataBuf_ = new u8[atrac->first_.filesize + overAllocBytes];
memset(atrac->dataBuf_, 0, atrac->first_.filesize + overAllocBytes);
if (!atrac->ignoreDataBuf_) {
u32 copybytes = std::min(bufferSize, atrac->first_.filesize);
Memory::Memcpy(atrac->dataBuf_, buffer, copybytes, "AtracSetData");