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author | Rostislav Pehlivanov <atomnuker@gmail.com> | 2016-10-08 15:59:14 +0100 |
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committer | Rostislav Pehlivanov <atomnuker@gmail.com> | 2016-10-18 21:41:18 +0100 |
commit | d2ae5f77c61a29c3c63cc4c41c74ccfca4167649 (patch) | |
tree | bd615f22e6807e025da052c411e12e9a7be0852e /libavcodec/aaccoder_trellis.h | |
parent | 3b02f6dd7be880fd6c1bcaf2fd0c1314dcee7aa6 (diff) | |
download | ffmpeg-streaming-d2ae5f77c61a29c3c63cc4c41c74ccfca4167649.zip ffmpeg-streaming-d2ae5f77c61a29c3c63cc4c41c74ccfca4167649.tar.gz |
aacenc: add SIMD optimizations for abs_pow34 and quantization
Performance improvements:
quant_bands:
with: 681 decicycles in quant_bands, 8388453 runs, 155 skips
without: 1190 decicycles in quant_bands, 8388386 runs, 222 skips
Around 42% for the function
Twoloop coder:
abs_pow34:
with/without: 7.82s/8.17s
Around 4% for the entire encoder
Both:
with/without: 7.15s/8.17s
Around 12% for the entire encoder
Fast coder:
abs_pow34:
with/without: 3.40s/3.77s
Around 10% for the entire encoder
Both:
with/without: 3.02s/3.77s
Around 20% faster for the entire encoder
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
Tested-by: Michael Niedermayer <michael@niedermayer.cc>
Reviewed-by: James Almer <jamrial@gmail.com>
Diffstat (limited to 'libavcodec/aaccoder_trellis.h')
-rw-r--r-- | libavcodec/aaccoder_trellis.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/aaccoder_trellis.h b/libavcodec/aaccoder_trellis.h index 0230052..940ebf0 100644 --- a/libavcodec/aaccoder_trellis.h +++ b/libavcodec/aaccoder_trellis.h @@ -70,7 +70,7 @@ static void codebook_trellis_rate(AACEncContext *s, SingleChannelElement *sce, float next_minbits = INFINITY; int next_mincb = 0; - abs_pow34_v(s->scoefs, sce->coeffs, 1024); + s->abs_pow34(s->scoefs, sce->coeffs, 1024); start = win*128; for (cb = 0; cb < CB_TOT_ALL; cb++) { path[0][cb].cost = run_bits+4; |