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[APU/XMA] Prevent crash with invalid packet number

This commit is contained in:
Gliniak 2021-05-07 21:28:18 +02:00 committed by Rick Gibbed
parent 8f1f849a06
commit 57ce647bb3
1 changed files with 10 additions and 5 deletions
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15
src/xenia/apu/xma_context.cc
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@ -442,12 +442,17 @@ void XmaContext::Decode(XMA_CONTEXT_DATA* data) {
} else {
if (data->input_buffer_read_offset % kBitsPerPacket == 0) {
// Invalid offset. Go ahead and set it.
int packet_number =
GetFramePacketNumber(current_input_buffer, current_input_size,
data->input_buffer_read_offset);
if (packet_number == -1) {
return;
}
auto offset =
xma::GetPacketFrameOffset(
current_input_buffer +
kBytesPerPacket * GetFramePacketNumber(
current_input_buffer, current_input_size,
data->input_buffer_read_offset)) +
xma::GetPacketFrameOffset(current_input_buffer +
kBytesPerPacket * packet_number) +
data->input_buffer_read_offset;
if (offset == -1) {
// No more frames.