Tree:
8edaf625f3
master
n4.4-jackoutdev
oldabi
release/0.10
release/0.11
release/0.5
release/0.6
release/0.7
release/0.8
release/0.9
release/1.0
release/1.1
release/1.2
release/2.0
release/2.1
release/2.2
release/2.3
release/2.4
release/2.5
release/2.6
release/2.7
release/2.8
release/3.0
release/3.1
release/3.2
release/3.3
release/3.4
release/4.0
release/4.1
release/4.2
release/4.3
release/4.4
v0.6.1
v0.6
v0.5.3
v0.5.2
v0.5.1
v0.5
n4.5-dev
n4.4-dev
n4.3-dev
n4.2-dev
n4.1-dev
n3.5-dev
n3.4-dev
n3.3-dev
n3.2-dev
n3.1-dev
n2.9-dev
n2.8-dev
n2.7-dev
n2.6-dev
n2.5-dev
n2.4-dev
n2.3-dev
n2.2-dev
n2.1-dev
n1.3-dev
n1.2-dev
n1.1-dev
n0.12-dev
n0.11-dev
n4.4
n4.3.2
n4.3.1
n4.3
n4.2.4
n4.2.3
n4.2.2
n4.2.1
n4.2
n4.1.6
n4.1.5
n4.1.4
n4.1.3
n4.1.2
n4.1.1
n4.1
n4.0.6
n4.0.5
n4.0.4
n4.0.3
n4.0.2
n4.0.1
n4.0
n3.4.8
n3.4.7
n3.4.6
n3.4.5
n3.4.4
n3.4.3
n3.4.2
n3.4.1
n3.4
n3.3.9
n3.3.8
n3.3.7
n3.3.6
n3.3.5
n3.3.4
n3.3.3
n3.3.2
n3.3.1
n3.3
n3.2.15
n3.2.14
n3.2.13
n3.2.12
n3.2.11
n3.2.10
n3.2.9
n3.2.8
n3.2.7
n3.2.6
n3.2.5
n3.2.4
n3.2.3
n3.2.2
n3.2.1
n3.2
n3.1.11
n3.1.10
n3.1.9
n3.1.8
n3.1.7
n3.1.6
n3.1.5
n3.1.4
n3.1.3
n3.1.2
n3.1.1
n3.1
n3.0.12
n3.0.11
n3.0.10
n3.0.9
n3.0.8
n3.0.7
n3.0.6
n3.0.5
n3.0.4
n3.0.3
n3.0.2
n3.0.1
n3.0
n2.8.17
n2.8.16
n2.8.15
n2.8.14
n2.8.13
n2.8.12
n2.8.11
n2.8.10
n2.8.9
n2.8.8
n2.8.7
n2.8.6
n2.8.5
n2.8.4
n2.8.3
n2.8.2
n2.8.1
n2.8
n2.7.7
n2.7.6
n2.7.5
n2.7.4
n2.7.3
n2.7.2
n2.7.1
n2.7
n2.6.9
n2.6.8
n2.6.7
n2.6.6
n2.6.5
n2.6.4
n2.6.3
n2.6.2
n2.6.1
n2.6
n2.5.11
n2.5.10
n2.5.9
n2.5.8
n2.5.7
n2.5.6
n2.5.5
n2.5.4
n2.5.3
n2.5.2
n2.5.1
n2.5
n2.4.14
n2.4.13
n2.4.12
n2.4.11
n2.4.10
n2.4.9
n2.4.8
n2.4.7
n2.4.6
n2.4.5
n2.4.4
n2.4.3
n2.4.2
n2.4.1
n2.4
n2.3.6
n2.3.5
n2.3.4
n2.3.3
n2.3.2
n2.3.1
n2.3
n2.2.16
n2.2.15
n2.2.14
n2.2.13
n2.2.12
n2.2.11
n2.2.10
n2.2.9
n2.2.8
n2.2.7
n2.2.6
n2.2.5
n2.2.4
n2.2.3
n2.2.2
n2.2.1
n2.2
n2.2-rc2
n2.2-rc1
n2.1.8
n2.1.7
n2.1.6
n2.1.5
n2.1.4
n2.1.3
n2.1.2
n2.1.1
n2.1
n2.0.7
n2.0.6
n2.0.5
n2.0.4
n2.0.3
n2.0.2
n2.0.1
n2.0
n1.2.12
n1.2.11
n1.2.10
n1.2.9
n1.2.8
n1.2.7
n1.2.6
n1.2.5
n1.2.4
n1.2.3
n1.2.2
n1.2.1
n1.2
n1.1.16
n1.1.15
n1.1.14
n1.1.13
n1.1.12
n1.1.11
n1.1.10
n1.1.9
n1.1.8
n1.1.7
n1.1.6
n1.1.5
n1.1.4
n1.1.3
n1.1.2
n1.1.1
n1.1
n1.0.10
n1.0.9
n1.0.8
n1.0.7
n1.0.6
n1.0.5
n1.0.4
n1.0.3
n1.0.2
n1.0.1
n1.0
n0.11.5
n0.11.4
n0.11.3
n0.11.2
n0.11.1
n0.11
n0.10.16
n0.10.15
n0.10.14
n0.10.13
n0.10.12
n0.10.11
n0.10.10
n0.10.9
n0.10.8
n0.10.7
n0.10.6
n0.10.5
n0.10.4
n0.10.3
n0.10.2
n0.10.1
n0.10
n0.9.4
n0.9.3
n0.9.2
n0.9.1
n0.9
n0.8.15
n0.8.14
n0.8.13
n0.8.12
n0.8.11
n0.8.10
n0.8.9
n0.8.8
n0.8.7
n0.8.6
n0.8.5
n0.8.4
n0.8.3
n0.8.2
n0.8.1
n0.8
n0.7.17
n0.7.16
n0.7.15
n0.7.14
n0.7.13
n0.7.12
n0.7.11
n0.7.10
n0.7.9
n0.7.8
n0.7.7
n0.7.6
n0.7.5
n0.7.4
n0.7.3
n0.7.2
n0.7.1
n0.6.7
n0.6.6
n0.6.5
n0.6.4
ffmpeg-0.6.3
n0.5.15
n0.5.14
n0.5.13
n0.5.12
n0.5.11
n0.5.10
n0.5.9
n0.5.8
n0.5.7
n0.5.6
n0.5.5
N
4 Commits (8edaf625f3c38c695c33745822182e94e17d6e1b)
4 Commits (8edaf625f3c38c695c33745822182e94e17d6e1b)
| Author | SHA1 | Message | Date |
|---|---|---|---|
 Ben Avison
|
5c22e8e4ad |
armv6: Accelerate ff_imdct_half for general case (mdct_bits != 6)
The previous implementation targeted DTS Coherent Acoustics, which only
requires mdct_bits == 6. This relatively small size lent itself to
unrolling the loops a small number of times, and encoding offsets
calculated at assembly time within the load/store instructions of each
iteration.
In the more general case (codecs such as AAC and AC3) much larger arrays
are used - mdct_bits == [8, 9, 11]. The old method does not scale for
these cases, so more integer registers are used with non-unrolled versions
of the loops (and with some stack spillage). The postrotation filter loop
is still unrolled by a factor of 2 to permit the double-buffering of some
VFP registers to facilitate overlap of neighbouring iterations.
I benchmarked the result by measuring the number of gperftools samples
that hit anywhere in the AAC decoder (starting from aac_decode_frame())
or specifically in ff_imdct_half_c / ff_imdct_half_vfp, for the same
example AAC stream:
Before After
Mean StdDev Mean StdDev Confidence Change
aac_decode_frame 2368.1 35.8 2117.2 35.3 100.0% +11.8%
ff_imdct_half_* 457.5 22.4 251.2 16.2 100.0% +82.1%
Signed-off-by: Martin Storsjö <martin@martin.st>
|
11 years ago |
 Martin Storsjö
|
69e6702c01 |
arm: Mangle external symbols properly in new vfp assembly files
Signed-off-by: Martin Storsjö <martin@martin.st> |
12 years ago |
|
Martin Storsjö
|
8b9eba664e |
arm: Add VFP-accelerated version of fft16
Before After
Mean StdDev Mean StdDev Change
This function 1389.3 4.2 967.8 35.1 +43.6%
Overall 15577.5 83.2 15400.0 336.4 +1.2%
Signed-off-by: Martin Storsjö <martin@martin.st>
|
12 years ago |
|
Martin Storsjö
|
b63bb251ea |
arm: Add VFP-accelerated version of imdct_half
Before After
Mean StdDev Mean StdDev Change
This function 2653.0 28.5 1108.8 51.4 +139.3%
Overall 17049.5 408.2 15973.0 223.2 +6.7%
Signed-off-by: Martin Storsjö <martin@martin.st>
|
12 years ago |