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| author | Linfeng Zhang <linfengz@google.com> | 2016-09-01 14:20:57 -0700 |
|---|---|---|
| committer | Jean-Marc Valin <jmvalin@jmvalin.ca> | 2017-05-17 15:55:42 -0400 |
| commit | 43db56225b5716b61c16a3275f65b8d3d3ea5343 (patch) | |
| tree | e9ac1ced761949a46885f92a419a3227ac8550e2 /src | |
| parent | 60eb7d88b4eace91395e553cf70fc4578a950353 (diff) | |
| download | opus-43db56225b5716b61c16a3275f65b8d3d3ea5343.tar.gz | |
Optimize silk_biquad_alt_stride2() for ARM NEON
The optimization is bit exact with C function.
Change-Id: Ifb8f04b19f2d576e79ce5dcfa7e0fc374d71d6c8
Signed-off-by: Jean-Marc Valin <jmvalin@jmvalin.ca>
Diffstat (limited to 'src')
| -rw-r--r-- | src/opus_encoder.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/opus_encoder.c b/src/opus_encoder.c index 62dadcfb..56fadb57 100644 --- a/src/opus_encoder.c +++ b/src/opus_encoder.c @@ -341,10 +341,11 @@ static void silk_biquad_float( } #endif -static void hp_cutoff(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs) +static void hp_cutoff(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *out, opus_val32 *hp_mem, int len, int channels, opus_int32 Fs, int arch) { opus_int32 B_Q28[ 3 ], A_Q28[ 2 ]; opus_int32 Fc_Q19, r_Q28, r_Q22; + (void)arch; silk_assert( cutoff_Hz <= silk_int32_MAX / SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ) ); Fc_Q19 = silk_DIV32_16( silk_SMULBB( SILK_FIX_CONST( 1.5 * 3.14159 / 1000, 19 ), cutoff_Hz ), Fs/1000 ); @@ -367,7 +368,7 @@ static void hp_cutoff(const opus_val16 *in, opus_int32 cutoff_Hz, opus_val16 *ou if( channels == 1 ) { silk_biquad_alt_stride1( in, B_Q28, A_Q28, hp_mem, out, len ); } else { - silk_biquad_alt_stride2( in, B_Q28, A_Q28, hp_mem, out, len ); + silk_biquad_alt_stride2( in, B_Q28, A_Q28, hp_mem, out, len, arch ); } #else silk_biquad_float( in, B_Q28, A_Q28, hp_mem, out, len, channels ); @@ -1609,7 +1610,7 @@ opus_int32 opus_encode_native(OpusEncoder *st, const opus_val16 *pcm, int frame_ if (st->application == OPUS_APPLICATION_VOIP) { - hp_cutoff(pcm, cutoff_Hz, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs); + hp_cutoff(pcm, cutoff_Hz, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs, st->arch); } else { dc_reject(pcm, 3, &pcm_buf[total_buffer*st->channels], st->hp_mem, frame_size, st->channels, st->Fs); } |