This commit exploits the sparsity of quantized coefficient matrix.
It detects each 32x8 array and skip the corresponding inverse
transformation if all entries are zero.
For ped1080p at 8000 kbps, this on average reduces the runtime of
32x32 inverse 2D-DCT SSE2 function from 6256 cycles -> 5200
cycles. It makes the overall encoding process about 2% faster at
speed 0. The speed-up is more pronounceable for the decoding process.
Change-Id: If20056c3566bd117642a76f8884c83e8bc8efbcf
This commit provides special handle on 16x16 inverse 2D-DCT, where
only DC coefficient is quantized to be non-zero value.
Change-Id: I7bf71be7fa13384fab453dc8742b5b50e77a277c
This commit enables a special handle for the 8x8 inverse 2D-DCT,
where only DC coefficient is quantized to be non-zero. For bus_cif
at 2000 kbps, it provides about 1% speed-up at speed 0.
Change-Id: I2523222359eec26b144cf8fd4c63a4ad63b1b011
Add SSE2 implementation to handle the special case of inverse 2D-DCT
where only DC coefficient is non-zero.
Change-Id: I2c6a59e21e5e77b8cf39a4af5eecf4d5ade32e2f
This commit enables SSE2 implementation of 16x16 inverse ADST/DCT
hybrid transform. The runtime goes from 5742 cycles -> 1821 cycles.
This provides about 1% encoding speed-up at speed 0.
Change-Id: I1678d0988bf30b9efd524877705bbb3645edb17b
This commit enables SSE2 implementation of 8x8 inverse ADST/DCT
transform. The runtime goes from 1216 cycles -> 266 cycles.
For bus_cif at 2000 kbps, the overall runtime reduces from
253707ms -> 248430ms, i.e., 2% speed-up at speed 0.
Change-Id: Ib0372e17e9162d7b11a10d653b1c8be547c878fb
Independent horizontal and vertical implementations.
Requires that blocks be built from 4x4 and [xy]_step_q4 == 16
6-10% improvement. CIF improved the least.
Change-Id: I137f5ceae4440adc0960bf88e4453e55a618bcda
Enable SSE2 4x4 inverse ADST/DCT transform. The runtime goes from
292 cycles down to 89 cycles. Running bus_cif at 2000 kbps, the
overall runtime of speed 0 goes from 301s to 295s (2% speed-up).
Change-Id: I24098136e7fee7ab2fbf1c11755bdf2ca37f3628
Where possible, do the 16 pixel wide filter while doing the horizontal
filtering pass. The same approach can be taken for the mbloop_filter
when that's implemented. Doing so on the vertical pass is a little more
involved, but possible.
Change-Id: I010cb505e623464247ae8f67fa25a0cdac091320
This probably has a mildly negative impact on performance, but will
(in future commits - or possibly merged with this one) allow SIMD
implementations of individual intra prediction functions. We may
perhaps want to consider having separate functions per txfm-size
also (i.e. 4x4, 8x8, 16x16 and 32x32 intra prediction functions for
each intra prediction mode), but I haven't played much with that
yet.
Change-Id: Ie739985eee0a3fcbb7aed29ee6910fdb653ea269
This seems to only be used in the encoder. Also remove an empty wrapper
file that contained forward declarations for this function, but didn't
actually define any actual functions.
Change-Id: Ifc561eef7ebe374a7d03698055e51e105f6d614b
Modified to work with 8x8 blocks of memory. Will revisit
later for further optimizations. For the HD clip used, the
decoder improved by almost 20%.
Change-Id: Iaa4785be293a32a42e8db07141bd699f504b8c67
Modified to work with 8x8 blocks of memory. Will revisit
later for further optimizations. For the HD clip used, the
decoder improved my 20%.
Change-Id: Ia0057f55d66d1445882351ea6c43b595a5a980e5
This patch eliminates the intermediate diff buffer usage by
combining the short idct and the add residual into one function.
The encoder can use the same code as well.
Change-Id: I296604bf73579c45105de0dd1adbcc91bcc53c22
This patch eliminates the intermediate diff buffer usage by
combining the short idct and the add residual into one function.
The encoder can use the same code as well.
Change-Id: Iacfd57324fbe2b7beca5d7f3dcae25c976e67f45
This patch eliminates the intermediate diff buffer usage by
combining the short idct and the add residual into one function.
The encoder can use the same code as well.
Change-Id: Iea7976b22b1927d24b8004d2a3fddae7ecca3ba1
This patch eliminates the intermediate diff buffer usage by
combining the short idct and the add residual into one function.
The encoder can use the same code as well.
Change-Id: I4ea09df0e162591e420d869b7431c2e7f89a8c1a
Conflicts:
vp9/common/vp9_findnearmv.c
vp9/common/vp9_rtcd_defs.sh
vp9/decoder/vp9_decodframe.c
vp9/decoder/x86/vp9_dequantize_sse2.c
vp9/encoder/vp9_rdopt.c
vp9/vp9_common.mk
Resolve file name changes in favor of master. Resolve rdopt changes in
favor of experimental, preserving the newer experiments.
Change-Id: If51ed8f457470281c7b20a5c1a2f4ce2cf76c20f
Remove similarly named header file. It is obsolete.
Move file to match naming style.
Adjust make file to include the file correctly and remove extra
unnecessary #if guard.
Change-Id: Ifba07ba9938a5df08a9f4eda54a3ac4d6983f7bf
First in a series of commits moving the framebuffers pointers to
per-plane data, so that they can be indexed numerically rather than
by name.
Change-Id: I6e0d60fd4d51e6375c384eb7321776564df21775
