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Fix celt decoder assertion when using OPUS_CUSTOM 

When using OPUS_CUSTOM, `CELTDecoder->end` can be larger than 21.
Assert against 25 instead in OPUS_CUSTOM builds.
See https://github.com/xiph/opus/issues/172.
This commit is contained in:
Daniel Masato 2020-04-10 11:43:23 +01:00
parent 703625a577
commit 582f3e5270
1 changed files with 7 additions and 1 deletions
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8
libs/opus/celt/celt_decoder.c
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@ -117,13 +117,19 @@ void validate_celt_decoder(CELTDecoder *st)
#ifndef CUSTOM_MODES
celt_assert(st->mode == opus_custom_mode_create(48000, 960, NULL));
celt_assert(st->overlap == 120);
celt_assert(st->end <= 21);
#else
/* From Section 4.3 in the spec: "The normal CELT layer uses 21 of those bands,
though Opus Custom (see Section 6.2) may use a different number of bands"
Check if it's within the maximum number of Bark frequency bands instead */
celt_assert(st->end <= 25);
#endif
celt_assert(st->channels == 1 || st->channels == 2);
celt_assert(st->stream_channels == 1 || st->stream_channels == 2);
celt_assert(st->downsample > 0);
celt_assert(st->start == 0 || st->start == 17);
celt_assert(st->start < st->end);
celt_assert(st->end <= 21);
#ifdef OPUS_ARCHMASK
celt_assert(st->arch >= 0);
celt_assert(st->arch <= OPUS_ARCHMASK);