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lavc/mpeg4audio: add chan_config check to avoid indeterminate channels

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add chan_config check to avoid indeterminate channels.

Signed-off-by: Jun Zhao <barryjzhao@tencent.com>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
Jun Zhao 2019-09-21 19:29:47 +08:00 committed by James Almer
parent 75c7484fcb
commit 333109f469
1 changed files with 4 additions and 0 deletions
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4
libavcodec/mpeg4audio.c
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@ -93,6 +93,10 @@ int ff_mpeg4audio_get_config_gb(MPEG4AudioConfig *c, GetBitContext *gb,
c->chan_config = get_bits(gb, 4);
if (c->chan_config < FF_ARRAY_ELEMS(ff_mpeg4audio_channels))
c->channels = ff_mpeg4audio_channels[c->chan_config];
else {
av_log(logctx, AV_LOG_ERROR, "Invalid chan_config %d\n", c->chan_config);
return AVERROR_INVALIDDATA;
}
c->sbr = -1;
c->ps = -1;
if (c->object_type == AOT_SBR || (c->object_type == AOT_PS &&