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| author | Ben Avison <bavison@riscosopen.org> | 2014-03-20 18:58:37 +0000 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2014-03-26 19:54:10 +0200 |
| commit | 483321fe789566dcb27b6387c00ea16dd86bc587 (patch) | |
| tree | 8d390dfcd3cea74eddba2519bf525acc4aac2d32 /libavcodec/arm/mlpdsp_init_arm.c | |
| parent | 4e5aa080bb8d83cb6de1ffbdd7b37ec34bc6b30b (diff) | |
| download | ffmpeg-483321fe789566dcb27b6387c00ea16dd86bc587.tar.gz | |
truehd: add hand-scheduled ARM asm version of ff_mlp_rematrix_channel.
Profiling results for overall audio decode and the rematrix_channels function
in particular are as follows:
Before After
Mean StdDev Mean StdDev Confidence Change
6:2 total 370.8 17.0 348.8 20.1 99.9% +6.3%
6:2 function 46.4 8.4 45.8 6.6 18.0% +1.2% (insignificant)
8:2 total 343.2 19.0 339.1 15.4 54.7% +1.2% (insignificant)
8:2 function 38.9 3.9 40.2 6.9 52.4% -3.2% (insignificant)
6:6 total 658.4 15.7 604.6 20.8 100.0% +8.9%
6:6 function 109.0 8.7 59.5 5.4 100.0% +83.3%
8:8 total 896.2 24.5 766.4 17.6 100.0% +16.9%
8:8 function 223.4 12.8 93.8 5.0 100.0% +138.3%
The assembly version has also been tested with a fuzz tester to ensure that
any combinations of inputs not exercised by my available test streams still
generate mathematically identical results to the C version.
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavcodec/arm/mlpdsp_init_arm.c')
| -rw-r--r-- | libavcodec/arm/mlpdsp_init_arm.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/arm/mlpdsp_init_arm.c b/libavcodec/arm/mlpdsp_init_arm.c index 4e8f44f557..e3eeb21e06 100644 --- a/libavcodec/arm/mlpdsp_init_arm.c +++ b/libavcodec/arm/mlpdsp_init_arm.c @@ -29,6 +29,17 @@ void ff_mlp_filter_channel_arm(int32_t *state, const int32_t *coeff, int firorder, int iirorder, unsigned int filter_shift, int32_t mask, int blocksize, int32_t *sample_buffer); +void ff_mlp_rematrix_channel_arm(int32_t *samples, + const int32_t *coeffs, + const uint8_t *bypassed_lsbs, + const int8_t *noise_buffer, + int index, + unsigned int dest_ch, + uint16_t blockpos, + unsigned int maxchan, + int matrix_noise_shift, + int access_unit_size_pow2, + int32_t mask); av_cold void ff_mlpdsp_init_arm(MLPDSPContext *c) { @@ -36,5 +47,6 @@ av_cold void ff_mlpdsp_init_arm(MLPDSPContext *c) if (have_armv5te(cpu_flags)) { c->mlp_filter_channel = ff_mlp_filter_channel_arm; + c->mlp_rematrix_channel = ff_mlp_rematrix_channel_arm; } } |