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aacdec_usac_mps212: reject reserved freq_res value

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Lynne
2026-03-10 17:24:46 +01:00
parent b028dac149
commit 7c79c79a50
1 changed files with 3 additions and 0 deletions
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3
libavcodec/aac/aacdec_usac.c
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@@ -215,6 +215,9 @@ static int decode_usac_element_pair(AACDecContext *ac,
if (e->stereo_config_index) {
e->mps.freq_res = get_bits(gb, 3); /* bsFreqRes */
if (!e->mps.freq_res)
return AVERROR_INVALIDDATA; /* value 0 is reserved */
e->mps.fixed_gain = get_bits(gb, 3); /* bsFixedGainDMX */
e->mps.temp_shape_config = get_bits(gb, 2); /* bsTempShapeConfig */
e->mps.decorr_config = get_bits(gb, 2); /* bsDecorrConfig */