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lavu/tx: simplify in-place permute search function

This commit is contained in:
Lynne 2021-02-27 04:19:55 +01:00
parent f9cb557d66
commit 9ddaf0c9f0
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GPG Key ID: A2FEA5F03F034464
1 changed files with 3 additions and 5 deletions
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8
libavutil/tx.c
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@ -114,8 +114,7 @@ int ff_tx_gen_ptwo_inplace_revtab_idx(AVTXContext *s)
if (!(s->inplace_idx = av_malloc(s->m*sizeof(*s->inplace_idx))))
return AVERROR(ENOMEM);
for (int d = 1; d < s->m; d++) {
int src = d, start_src = src;
for (int src = 1; src < s->m; src++) {
int dst = s->revtab[src];
int found = 0;
@ -123,7 +122,6 @@ int ff_tx_gen_ptwo_inplace_revtab_idx(AVTXContext *s)
continue;
do {
src = dst;
for (int j = 0; j < nb_inplace_idx; j++) {
if (dst == s->inplace_idx[j]) {
found = 1;
@ -131,10 +129,10 @@ int ff_tx_gen_ptwo_inplace_revtab_idx(AVTXContext *s)
}
}
dst = s->revtab[dst];
} while (dst != start_src && !found);
} while (dst != src && !found);
if (!found)
s->inplace_idx[nb_inplace_idx++] = start_src;
s->inplace_idx[nb_inplace_idx++] = src;
}
s->inplace_idx[nb_inplace_idx++] = 0;