diff options
| -rw-r--r-- | lib/rbcodec/codecs/libopus/celt/celt.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/rbcodec/codecs/libopus/celt/celt.c b/lib/rbcodec/codecs/libopus/celt/celt.c index 4a09cc9905..52a66d1b68 100644 --- a/lib/rbcodec/codecs/libopus/celt/celt.c +++ b/lib/rbcodec/codecs/libopus/celt/celt.c @@ -448,12 +448,16 @@ static void compute_inv_mdcts(const CELTMode *mode, int shortBlocks, celt_sig *X clt_mdct_backward(&mode->mdct, &X[b+c*N2*B], x+N2*b, mode->window, overlap, shortBlocks ? mode->maxLM : mode->maxLM-LM, B); } - for (j=0;j<overlap;j++) - out_mem[c][j] = x[j] + overlap_mem[c][j]; - for (;j<N;j++) - out_mem[c][j] = x[j]; - for (j=0;j<overlap;j++) - overlap_mem[c][j] = x[N+j]; + /* overlap can be divided by 4 */ + for (j=0;j<overlap;j+=4) + { + out_mem[c][j ] = x[j ] + overlap_mem[c][j ]; + out_mem[c][j+1] = x[j+1] + overlap_mem[c][j+1]; + out_mem[c][j+2] = x[j+2] + overlap_mem[c][j+2]; + out_mem[c][j+3] = x[j+3] + overlap_mem[c][j+3]; + } + OPUS_COPY(out_mem[c]+overlap, x+overlap, N-overlap); + OPUS_COPY(overlap_mem[c] , x+N , overlap); } while (++c<C); RESTORE_STACK; } |