diff options
| author | Timothy B. Terriberry <tterribe@xiph.org> | 2013-11-18 22:30:13 +0400 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2013-11-18 22:41:17 +0400 |
| commit | 39386e0b85ec0f978aa104d312604badb9047d58 (patch) | |
| tree | e1171628bb638ec1b770b049e39609d7a268c584 /celt/celt_decoder.c | |
| parent | 530198f955e49571b3f890b4da4d933a4cd5df4e (diff) | |
Adds Neon assembly for correlation/convolution
Optimizing celt_pitch_xcorr()/xcorr_kernel() which also speeds up
FIRs, IIRs and auto-correlations
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
Diffstat (limited to 'celt/celt_decoder.c')
| -rw-r--r-- | celt/celt_decoder.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/celt/celt_decoder.c b/celt/celt_decoder.c index e61f8807..e34b4c6d 100644 --- a/celt/celt_decoder.c +++ b/celt/celt_decoder.c @@ -447,10 +447,11 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, opus_val16 * OPUS_R { VARDECL( opus_val16, lp_pitch_buf ); ALLOC( lp_pitch_buf, DECODE_BUFFER_SIZE>>1, opus_val16 ); - pitch_downsample(decode_mem, lp_pitch_buf, DECODE_BUFFER_SIZE, C); + pitch_downsample(decode_mem, lp_pitch_buf, + DECODE_BUFFER_SIZE, C, st->arch); pitch_search(lp_pitch_buf+(PLC_PITCH_LAG_MAX>>1), lp_pitch_buf, DECODE_BUFFER_SIZE-PLC_PITCH_LAG_MAX, - PLC_PITCH_LAG_MAX-PLC_PITCH_LAG_MIN, &pitch_index); + PLC_PITCH_LAG_MAX-PLC_PITCH_LAG_MIN, &pitch_index, st->arch); pitch_index = PLC_PITCH_LAG_MAX-pitch_index; st->last_pitch_index = pitch_index; } else { @@ -481,7 +482,8 @@ static void celt_decode_lost(CELTDecoder * OPUS_RESTRICT st, opus_val16 * OPUS_R opus_val32 ac[LPC_ORDER+1]; /* Compute LPC coefficients for the last MAX_PERIOD samples before the first loss so we can work in the excitation-filter domain. */ - _celt_autocorr(exc, ac, window, overlap, LPC_ORDER, MAX_PERIOD); + _celt_autocorr(exc, ac, window, overlap, + LPC_ORDER, MAX_PERIOD, st->arch); /* Add a noise floor of -40 dB. */ #ifdef FIXED_POINT ac[0] += SHR32(ac[0],13); |