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dcadec: skip QMF on unused channels

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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Michael Niedermayer
2012-10-29 05:21:47 +01:00
parent a3886ea3c5
commit b4e6265136
1 changed files with 1 additions and 0 deletions
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libavcodec/dcadec.c
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@@ -1442,6 +1442,7 @@ static int dca_filter_channels(DCAContext *s, int block_index)
for (k = 0; k < s->prim_channels; k++) { for (k = 0; k < s->prim_channels; k++) {
/* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0, /* static float pcm_to_double[8] = { 32768.0, 32768.0, 524288.0, 524288.0,
0, 8388608.0, 8388608.0 };*/ 0, 8388608.0, 8388608.0 };*/
if(s->channel_order_tab[k] >= 0)
qmf_32_subbands(s, k, subband_samples[k], qmf_32_subbands(s, k, subband_samples[k],
s->samples_chanptr[s->channel_order_tab[k]], s->samples_chanptr[s->channel_order_tab[k]],
M_SQRT1_2 / 32768.0 /* pcm_to_double[s->source_pcm_res] */); M_SQRT1_2 / 32768.0 /* pcm_to_double[s->source_pcm_res] */);