6035da5448
This is a code snapshot of experimental work currently ongoing for a next-generation codec. The codebase has been cut down considerably from the libvpx baseline. For example, we are currently only supporting VBR 2-pass rate control and have removed most of the code relating to coding speed, threading, error resilience, partitions and various other features. This is in part to make the codebase easier to work on and experiment with, but also because we want to have an open discussion about how the bitstream will be structured and partitioned and not have that conversation constrained by past work. Our basic working pattern has been to initially encapsulate experiments using configure options linked to #IF CONFIG_XXX statements in the code. Once experiments have matured and we are reasonably happy that they give benefit and can be merged without breaking other experiments, we remove the conditional compile statements and merge them in. Current changes include: * Temporal coding experiment for segments (though still only 4 max, it will likely be increased). * Segment feature experiment - to allow various bits of information to be coded at the segment level. Features tested so far include mode and reference frame information, limiting end of block offset and transform size, alongside Q and loop filter parameters, but this set is very fluid. * Support for 8x8 transform - 8x8 dct with 2nd order 2x2 haar is used in MBs using 16x16 prediction modes within inter frames. * Compound prediction (combination of signals from existing predictors to create a new predictor). * 8 tap interpolation filters and 1/8th pel motion vectors. * Loop filter modifications. * Various entropy modifications and changes to how entropy contexts and updates are handled. * Extended quantizer range matched to transform precision improvements. There are also ongoing further experiments that we hope to merge in the near future: For example, coding of motion and other aspects of the prediction signal to better support larger image formats, use of larger block sizes (e.g. 32x32 and up) and lossless non-transform based coding options (especially for key frames). It is our hope that we will be able to make regular updates and we will warmly welcome community contributions. Please be warned that, at this stage, the codebase is currently slower than VP8 stable branch as most new code has not been optimized, and even the 'C' has been deliberately written to be simple and obvious, not fast. The following graphs have the initial test results, numbers in the tables measure the compression improvement in terms of percentage. The build has the following optional experiments configured: --enable-experimental --enable-enhanced_interp --enable-uvintra --enable-high_precision_mv --enable-sixteenth_subpel_uv CIF Size clips: http://getwebm.org/tmp/cif/ HD size clips: http://getwebm.org/tmp/hd/ (stable_20120309 represents encoding results of WebM master branch build as of commit#7a15907) They were encoded using the following encode parameters: --good --cpu-used=0 -t 0 --lag-in-frames=25 --min-q=0 --max-q=63 --end-usage=0 --auto-alt-ref=1 -p 2 --pass=2 --kf-max-dist=9999 --kf-min-dist=0 --drop-frame=0 --static-thresh=0 --bias-pct=50 --minsection-pct=0 --maxsection-pct=800 --sharpness=0 --arnr-maxframes=7 --arnr-strength=3(for HD,6 for CIF) --arnr-type=3 Change-Id: I5c62ed09cfff5815a2bb34e7820d6a810c23183c
485 lines
12 KiB
NASM
485 lines
12 KiB
NASM
;
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; Copyright (c) 2010 The WebM project authors. All Rights Reserved.
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;
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; Use of this source code is governed by a BSD-style license
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; that can be found in the LICENSE file in the root of the source
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; tree. An additional intellectual property rights grant can be found
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; in the file PATENTS. All contributing project authors may
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; be found in the AUTHORS file in the root of the source tree.
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;
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%include "vpx_ports/x86_abi_support.asm"
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;void int vp8_makemask_sse3(
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; unsigned char *y,
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; unsigned char *u,
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; unsigned char *v,
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; unsigned char *ym,
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; unsigned char *uvm,
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; int yp,
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; int uvp,
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; int ys,
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; int us,
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; int vs,
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; int yt,
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; int ut,
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; int vt)
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global sym(vp8_makemask_sse3)
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sym(vp8_makemask_sse3):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 14
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;y
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mov rdi, arg(1) ;u
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mov rcx, arg(2) ;v
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mov rax, arg(3) ;ym
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movsxd rbx, dword arg(4) ;yp
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movsxd rdx, dword arg(5) ;uvp
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pxor xmm0,xmm0
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;make 16 copies of the center y value
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movd xmm1, arg(6)
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pshufb xmm1, xmm0
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; make 16 copies of the center u value
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movd xmm2, arg(7)
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pshufb xmm2, xmm0
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; make 16 copies of the center v value
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movd xmm3, arg(8)
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pshufb xmm3, xmm0
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unpcklpd xmm2, xmm3
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;make 16 copies of the y tolerance
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movd xmm3, arg(9)
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pshufb xmm3, xmm0
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;make 16 copies of the u tolerance
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movd xmm4, arg(10)
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pshufb xmm4, xmm0
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;make 16 copies of the v tolerance
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movd xmm5, arg(11)
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pshufb xmm5, xmm0
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unpckhpd xmm4, xmm5
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mov r8,8
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NextPairOfRows:
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;grab the y source values
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movdqu xmm0, [rsi]
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;compute abs difference between source and y target
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movdqa xmm6, xmm1
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movdqa xmm7, xmm0
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psubusb xmm0, xmm1
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psubusb xmm6, xmm7
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por xmm0, xmm6
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;compute abs difference between
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movdqa xmm6, xmm3
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pcmpgtb xmm6, xmm0
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;grab the y source values
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add rsi, rbx
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movdqu xmm0, [rsi]
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;compute abs difference between source and y target
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movdqa xmm11, xmm1
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movdqa xmm7, xmm0
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psubusb xmm0, xmm1
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psubusb xmm11, xmm7
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por xmm0, xmm11
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;compute abs difference between
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movdqa xmm11, xmm3
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pcmpgtb xmm11, xmm0
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;grab the u and v source values
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movdqu xmm7, [rdi]
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movdqu xmm8, [rcx]
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unpcklpd xmm7, xmm8
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;compute abs difference between source and uv targets
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movdqa xmm9, xmm2
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movdqa xmm10, xmm7
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psubusb xmm7, xmm2
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psubusb xmm9, xmm10
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por xmm7, xmm9
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;check whether the number is < tolerance
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movdqa xmm0, xmm4
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pcmpgtb xmm0, xmm7
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;double u and v masks
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movdqa xmm8, xmm0
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punpckhbw xmm0, xmm0
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punpcklbw xmm8, xmm8
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;mask row 0 and output
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pand xmm6, xmm8
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pand xmm6, xmm0
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movdqa [rax],xmm6
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;mask row 1 and output
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pand xmm11, xmm8
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pand xmm11, xmm0
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movdqa [rax+16],xmm11
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; to the next row or set of rows
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add rsi, rbx
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add rdi, rdx
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add rcx, rdx
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add rax,32
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dec r8
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jnz NextPairOfRows
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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;GROW_HORIZ (register for result, source register or mem local)
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; takes source and shifts left and ors with source
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; then shifts right and ors with source
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%macro GROW_HORIZ 2
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movdqa %1, %2
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movdqa xmm14, %1
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movdqa xmm15, %1
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pslldq xmm14, 1
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psrldq xmm15, 1
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por %1,xmm14
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por %1,xmm15
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%endmacro
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;GROW_VERT (result, center row, above row, below row)
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%macro GROW_VERT 4
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movdqa %1,%2
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por %1,%3
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por %1,%4
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%endmacro
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;GROW_NEXTLINE (new line to grow, new source, line to write)
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%macro GROW_NEXTLINE 3
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GROW_HORIZ %1, %2
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GROW_VERT xmm3, xmm0, xmm1, xmm2
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movdqa %3,xmm3
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%endmacro
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;void int vp8_growmaskmb_sse3(
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; unsigned char *om,
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; unsigned char *nm,
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global sym(vp8_growmaskmb_sse3)
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sym(vp8_growmaskmb_sse3):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 2
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;src
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mov rdi, arg(1) ;rst
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GROW_HORIZ xmm0, [rsi]
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GROW_HORIZ xmm1, [rsi+16]
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GROW_HORIZ xmm2, [rsi+32]
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GROW_VERT xmm3, xmm0, xmm1, xmm2
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por xmm0,xmm1
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movdqa [rdi], xmm0
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movdqa [rdi+16],xmm3
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GROW_NEXTLINE xmm0,[rsi+48],[rdi+32]
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GROW_NEXTLINE xmm1,[rsi+64],[rdi+48]
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GROW_NEXTLINE xmm2,[rsi+80],[rdi+64]
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GROW_NEXTLINE xmm0,[rsi+96],[rdi+80]
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GROW_NEXTLINE xmm1,[rsi+112],[rdi+96]
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GROW_NEXTLINE xmm2,[rsi+128],[rdi+112]
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GROW_NEXTLINE xmm0,[rsi+144],[rdi+128]
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GROW_NEXTLINE xmm1,[rsi+160],[rdi+144]
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GROW_NEXTLINE xmm2,[rsi+176],[rdi+160]
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GROW_NEXTLINE xmm0,[rsi+192],[rdi+176]
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GROW_NEXTLINE xmm1,[rsi+208],[rdi+192]
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GROW_NEXTLINE xmm2,[rsi+224],[rdi+208]
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GROW_NEXTLINE xmm0,[rsi+240],[rdi+224]
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por xmm0,xmm2
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movdqa [rdi+240], xmm0
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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;unsigned int vp8_sad16x16_masked_wmt(
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; unsigned char *src_ptr,
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; int src_stride,
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; unsigned char *ref_ptr,
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; int ref_stride,
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; unsigned char *mask)
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global sym(vp8_sad16x16_masked_wmt)
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sym(vp8_sad16x16_masked_wmt):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 5
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;src_ptr
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mov rdi, arg(2) ;ref_ptr
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mov rbx, arg(4) ;mask
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movsxd rax, dword ptr arg(1) ;src_stride
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movsxd rdx, dword ptr arg(3) ;ref_stride
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mov rcx, 16
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pxor xmm3, xmm3
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NextSadRow:
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movdqu xmm0, [rsi]
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movdqu xmm1, [rdi]
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movdqu xmm2, [rbx]
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pand xmm0, xmm2
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pand xmm1, xmm2
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psadbw xmm0, xmm1
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paddw xmm3, xmm0
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add rsi, rax
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add rdi, rdx
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add rbx, 16
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dec rcx
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jnz NextSadRow
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movdqa xmm4 , xmm3
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psrldq xmm4, 8
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paddw xmm3, xmm4
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movq rax, xmm3
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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;unsigned int vp8_sad16x16_unmasked_wmt(
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; unsigned char *src_ptr,
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; int src_stride,
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; unsigned char *ref_ptr,
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; int ref_stride,
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; unsigned char *mask)
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global sym(vp8_sad16x16_unmasked_wmt)
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sym(vp8_sad16x16_unmasked_wmt):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 5
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;src_ptr
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mov rdi, arg(2) ;ref_ptr
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mov rbx, arg(4) ;mask
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movsxd rax, dword ptr arg(1) ;src_stride
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movsxd rdx, dword ptr arg(3) ;ref_stride
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mov rcx, 16
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pxor xmm3, xmm3
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next_vp8_sad16x16_unmasked_wmt:
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movdqu xmm0, [rsi]
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movdqu xmm1, [rdi]
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movdqu xmm2, [rbx]
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por xmm0, xmm2
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por xmm1, xmm2
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psadbw xmm0, xmm1
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paddw xmm3, xmm0
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add rsi, rax
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add rdi, rdx
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add rbx, 16
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dec rcx
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jnz next_vp8_sad16x16_unmasked_wmt
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movdqa xmm4 , xmm3
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psrldq xmm4, 8
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paddw xmm3, xmm4
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movq rax, xmm3
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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;unsigned int vp8_masked_predictor_wmt(
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; unsigned char *masked,
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; unsigned char *unmasked,
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; int src_stride,
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; unsigned char *dst_ptr,
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; int dst_stride,
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; unsigned char *mask)
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global sym(vp8_masked_predictor_wmt)
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sym(vp8_masked_predictor_wmt):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 6
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;src_ptr
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mov rdi, arg(1) ;ref_ptr
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mov rbx, arg(5) ;mask
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movsxd rax, dword ptr arg(2) ;src_stride
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mov r11, arg(3) ; destination
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movsxd rdx, dword ptr arg(4) ;dst_stride
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mov rcx, 16
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pxor xmm3, xmm3
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next_vp8_masked_predictor_wmt:
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movdqu xmm0, [rsi]
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movdqu xmm1, [rdi]
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movdqu xmm2, [rbx]
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pand xmm0, xmm2
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pandn xmm2, xmm1
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por xmm0, xmm2
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movdqu [r11], xmm0
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add r11, rdx
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add rsi, rax
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add rdi, rdx
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add rbx, 16
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dec rcx
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jnz next_vp8_masked_predictor_wmt
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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;unsigned int vp8_masked_predictor_uv_wmt(
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; unsigned char *masked,
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; unsigned char *unmasked,
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; int src_stride,
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; unsigned char *dst_ptr,
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; int dst_stride,
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; unsigned char *mask)
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global sym(vp8_masked_predictor_uv_wmt)
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sym(vp8_masked_predictor_uv_wmt):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 6
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;src_ptr
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mov rdi, arg(1) ;ref_ptr
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mov rbx, arg(5) ;mask
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movsxd rax, dword ptr arg(2) ;src_stride
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mov r11, arg(3) ; destination
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movsxd rdx, dword ptr arg(4) ;dst_stride
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mov rcx, 8
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pxor xmm3, xmm3
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next_vp8_masked_predictor_uv_wmt:
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movq xmm0, [rsi]
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movq xmm1, [rdi]
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movq xmm2, [rbx]
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pand xmm0, xmm2
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pandn xmm2, xmm1
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por xmm0, xmm2
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movq [r11], xmm0
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add r11, rdx
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add rsi, rax
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add rdi, rax
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add rbx, 8
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dec rcx
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jnz next_vp8_masked_predictor_uv_wmt
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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;unsigned int vp8_uv_from_y_mask(
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; unsigned char *ymask,
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; unsigned char *uvmask)
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global sym(vp8_uv_from_y_mask)
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sym(vp8_uv_from_y_mask):
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push rbp
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mov rbp, rsp
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SHADOW_ARGS_TO_STACK 6
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push rsi
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push rdi
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; end prolog
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mov rsi, arg(0) ;src_ptr
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mov rdi, arg(1) ;dst_ptr
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mov rcx, 8
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pxor xmm3, xmm3
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next_p8_uv_from_y_mask:
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movdqu xmm0, [rsi]
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pshufb xmm0, [shuf1b] ;[GLOBAL(shuf1b)]
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movq [rdi],xmm0
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add rdi, 8
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add rsi,32
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dec rcx
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jnz next_p8_uv_from_y_mask
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; begin epilog
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pop rdi
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pop rsi
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UNSHADOW_ARGS
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pop rbp
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ret
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SECTION_RODATA
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align 16
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shuf1b:
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db 0, 2, 4, 6, 8, 10, 12, 14, 0, 0, 0, 0, 0, 0, 0, 0
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