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Code Issues Releases Activity

aacdec_usac: clean up nb_elems on error

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Require that there is a valid layout with a valid number of channels
before accepting nb_elems.
The value is required when flushing.

Thanks to kasper93 for figuring it out.
This commit is contained in:
Lynne 2024-06-05 18:25:00 +02:00
parent 5c328e6c1e
commit 62cd6d9e59
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GPG Key ID: A2FEA5F03F034464
1 changed files with 3 additions and 0 deletions
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3
libavcodec/aac/aacdec_usac.c
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@ -401,6 +401,7 @@ int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx,
if (usac->nb_elems > 64) {
av_log(ac->avctx, AV_LOG_ERROR, "Too many elements: %i\n",
usac->nb_elems);
usac->nb_elems = 0;
return AVERROR(EINVAL);
}
@ -413,6 +414,7 @@ int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx,
(elem_id[0] + elem_id[1] + elem_id[2] + 1) > nb_channels) {
av_log(ac->avctx, AV_LOG_ERROR, "Too many channels for the channel "
"configuration\n");
usac->nb_elems = 0;
return AVERROR(EINVAL);
}
@ -458,6 +460,7 @@ int ff_aac_usac_config_decode(AACDecContext *ac, AVCodecContext *avctx,
ret = ff_aac_output_configure(ac, layout_map, elem_id[0] + elem_id[1] + elem_id[2], OC_GLOBAL_HDR, 0);
if (ret < 0) {
av_log(avctx, AV_LOG_ERROR, "Unable to parse channel config!\n");
usac->nb_elems = 0;
return ret;
}