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lavu/tx: do not steal lookup tables of subcontexts in the iMDCT
As it happens, some still need their contexts.
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commit
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@ -965,15 +965,14 @@ static av_cold int TX_NAME(ff_tx_mdct_init)(AVTXContext *s,
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return ret;
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return ret;
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}
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}
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/* If we need to preshuffle just steal the map from the subcontext */
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if (s->sub[0].flags & FF_TX_PRESHUFFLE) {
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s->map = s->sub[0].map;
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s->sub[0].map = NULL;
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} else {
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s->map = av_malloc((len >> 1)*sizeof(*s->map));
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s->map = av_malloc((len >> 1)*sizeof(*s->map));
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if (!s->map)
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if (!s->map)
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return AVERROR(ENOMEM);
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return AVERROR(ENOMEM);
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/* If we need to preshuffle copy the map from the subcontext */
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if (s->sub[0].flags & FF_TX_PRESHUFFLE) {
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memcpy(s->map, s->sub->map, (len >> 1)*sizeof(*s->map));
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} else {
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for (int i = 0; i < len >> 1; i++)
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for (int i = 0; i < len >> 1; i++)
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s->map[i] = i;
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s->map[i] = i;
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}
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}
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