diff options
| author | Ben Avison <bavison@riscosopen.org> | 2014-03-20 18:59:16 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-03-26 20:50:05 +0100 |
| commit | 89135716fd4c2963e01e0155547c47bf709f1aa3 (patch) | |
| tree | 3fd7b75f0732898889a48f9b3d3d2d1577c208f9 /libavcodec/arm/mlpdsp_init_arm.c | |
| parent | 80e67feda806ffbc51bbbc8de869f9ab5878bcce (diff) | |
| download | ffmpeg-89135716fd4c2963e01e0155547c47bf709f1aa3.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: Michael Niedermayer <michaelni@gmx.at>
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 a8319ce88a..bad5f20122 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; } } |