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avcodec/aac/aacdec_usac: reject explicit usacSamplingFrequency of 0

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2026-05-31 19:50:57 +02:00
committed by michaelni
parent d092269996
commit 263374ac7d
1 changed files with 2 additions and 0 deletions
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libavcodec/aac/aacdec_usac.c
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@@ -377,6 +377,8 @@ int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx,
freq_idx = get_bits(gb, 5); /* usacSamplingFrequencyIndex */
if (freq_idx == 0x1f) {
samplerate = get_bits(gb, 24); /* usacSamplingFrequency */
if (samplerate == 0)
return AVERROR(EINVAL);
} else {
samplerate = ff_aac_usac_samplerate[freq_idx];
if (samplerate < 0)