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-rw-r--r--libAACdec/src/aacdecoder.cpp12
1 files changed, 10 insertions, 2 deletions
diff --git a/libAACdec/src/aacdecoder.cpp b/libAACdec/src/aacdecoder.cpp
index 414c3e2..08128c0 100644
--- a/libAACdec/src/aacdecoder.cpp
+++ b/libAACdec/src/aacdecoder.cpp
@@ -1791,9 +1791,17 @@ CAacDecoder_Init(HANDLE_AACDECODER self, const CSAudioSpecificConfig *asc,
downscaleFactorInBS =
asc->m_samplingFrequency /
asc->m_sc.m_eldSpecificConfig.m_downscaledSamplingFrequency;
- if (downscaleFactorInBS == 1 || downscaleFactorInBS == 2 ||
- downscaleFactorInBS == 3 || downscaleFactorInBS == 4) {
+ if ((downscaleFactorInBS == 1 || downscaleFactorInBS == 2 ||
+ (downscaleFactorInBS == 3 &&
+ asc->m_sc.m_eldSpecificConfig.m_frameLengthFlag) ||
+ downscaleFactorInBS == 4) &&
+ ((asc->m_samplingFrequency %
+ asc->m_sc.m_eldSpecificConfig.m_downscaledSamplingFrequency) ==
+ 0)) {
downscaleFactor = downscaleFactorInBS;
+ } else {
+ downscaleFactorInBS = 1;
+ downscaleFactor = 1;
}
}
} else {