In the current logic, if the sse for zero motion is smaller
than the sse for new_mv (i.e., best_sse), we may still end up
using the non-zero mv for denoising (if the magnitude of new_mv is above threshold).
This can happen for very noisy content, and can lead to artifacts.
This change ensures that we always use zero_mv (over new_mv) for
denoisng if sse_zero_mv <= best_sse.
Change-Id: I8ef9294d837b077013b77a46c9a71d17c648b48a
Fixes a bug introduced in
https://gerrit.chromium.org/gerrit/#/c/69779/13, where
uninitialized frame buffers due to corrupt and short
buffer sizes, may cause a crash.
This patch fixes the currently failing
video/processing/static_image/vp8_convert_test
Change-Id: I1b09e21482f292c11a2bfb4e570aef1d643410a7
If the denoiser filter causes too big a change in the absolute pixel difference
(between source and denoised signal), the block is not denoised, which can cause
visual block artifacts. This change applies a second adjustment to the temporal filter
to effectively allow for a (weaker) denoising for such blocks (which can keep
the absolute differnence within the tolerance range in most cases).
This helps to reduce some of the block artifacts from the denoising.
The additional cost of re-applying the filter to this set of blocks is low,
as the percentage of blocks per frame (with too big a change in absolute pixel difference)
is typically small, 2-5%.
Change-Id: Id9b56e59e33f3c22e79d2f89f763bdde246fdf3f
Renames all x86_64 specific assembly files to consistently
end in _x86_64.asm. This will be useful for build systems to
handle these files differently.
All new 64-bit specific assembly files should use the new
naming convention.
Change-Id: I36c89584967c82ffc4088b1b5044ac15d2bb7536
MMX variance code in vp8 was reading out of bounds..
TODO(JBB): The best fix would involve removing duplicate library
functions between vp8 and vp9...
Change-Id: I5722853a6a58d3b55257ff385fa54c773bf98ded
As a side-effect, the max_sad check is removed from the
C-implementation of VP8, for consistency with VP9, and to
ensure that the SAD tests common to VP8/VP9 pass.
That will make the VP8 C implementation of sad a little slower
but given that is rarely used in practice, the impact will be
minimal.
Change-Id: I7f43089fdea047fbf1862e40c21e4715c30f07ca
This reverts commit 81ad047ee5.
Revert "VP8 for ARMv8 by using NEON intrinsics 15"
This reverts commit 727af7cebe.
This exposes a bug in gcc 4.9 regarding register allocation. Will reland
when 4.9 is fixed.
Change-Id: I2d8a04e4edde93719280e41550f4c0765608ec4d
This reverts commit c500fc22c1
There is an issue with gcc 4.6 in the Android NDK:
loopfiltersimpleverticaledge_neon.c: In function 'vp8_loop_filter_bvs_neon':
loopfiltersimpleverticaledge_neon.c:176:1: error: insn does not satisfy its constraints:
Change-Id: I95b6509d12f075890308914cc691b813d2e5cd9f
This reverts commit a5d79f43b9
There is an issue with gcc 4.6 in the Android NDK:
loopfilter_neon.c: In function 'vp8_loop_filter_vertical_edge_y_neon':
loopfilter_neon.c:394:1: error: insn does not satisfy its constraints:
Change-Id: I2b8c6ee3fa595c152ac3a5c08dd79bd9770c7b52
Added macro to conditionally compile some of the
post-processing functions only when CONFIG_POSTPROC
is defined.
This was causing the build for the generic-gnu target
to fail.
Change-Id: Ibfa447feceb7a0528135025f105be48f97e9965c
The rounding of the ARNR filter output prior to
normalization by the filter strength was incorrect
when strength = 0.
In this case 1 << (strength - 1) would not create the
required rounding of 0, rather it would outrange. This
patch fixes this issue.
Change-Id: I771809ba34d6052b17d34c870ea11ff67b418dab
Used horizonal add instructions instead of adding
byte lanes. The encoder performance improved by
~4% for the test clip used.
Change-Id: Iaddd10403fcffb5b3f53b1f591ab2fe0ff002c08
This patch did a cleanup following the commit "Save NEON registers
in VP8 NEON functions". The pushing/poping of callee-saved NEON
registers was moved into individual NEON functions. Therefore,
we don't need to save those registers at the beginning of codec.
The related code was removed.
Change-Id: I5648166514fc9beffb780aa138495597731f49ea
The recent compiler can generate optimized code that uses NEON registers
for various operations besides floating-point operations. Therefore,
only saving callee-saved registers d8 - d15 at the beginning of the
encoder/decoder is not enough anymore. This patch added register saving
code in VP8 NEON functions that use those registers.
Change-Id: Ie9e44f5188cf410990c8aaaac68faceee9dffd31
This patch fixed errors reported in Issue 746: "dr memory VP8
encode errors" and Issue 745: "dr memory VP8 decode errors".
The "UNINITIALIZED READ" errors were fixed in x86 assembly
code. The list of files fixed is
vp8_intra_pred_uv_tm_sse2
vp8_intra_pred_uv_tm_ssse3
vp8_intra_pred_uv_ho_mmx2
vp8_intra_pred_uv_ho_ssse3
vp8_intra_pred_y_tm_sse2
vp8_intra_pred_y_tm_ssse3
vp8_intra_pred_y_ho_sse2
Change-Id: Ib6df7bf1d442077fe534edfd90e50ad16fadacdd
This commit added a check of reference frame to make sure that pre
buffer pointers are initialized only when necessary and make them
to 0 if ref frame is intra, hence those buffer should never be used.
Change-Id: Ieb474fcd9feb759f02e2f9c282b7348a8fa31117
Added command line flags "resize-width" & "resize-height"
to allow the user to specify the frame size to encode at.
These two flags are ignored if the "resize-allowed" switch
is not set to 1.
All frames in the clip are then encoded at this size, which
must be smaller than the raw frame size.
Change-Id: I3d64bd9303d5c0bd678461a866a1ea621700d744
This patch fixed WebRTC Issue 3020: "Uninit error at
vp8_mbpost_proc_down_xmm". The first 8 values in d were not initialized,
but was accessed. This patch fixed c code as well as mmx and sse2 code.
Change-Id: Iaa5b41a4ed3bea971b15fb826ce34b7ab4e36fb1
significantly speeds up file generation.
the goal of this change is to convert rtcd.sh to perl as directly as
possible to allow for simple comparison. future changes can make it more
perl-like.
---
Linux
[CREATE] vpx_scale_rtcd.h
real 0m0.485s -> 0m0.022s
[CREATE] vp8_rtcd.h
real 0m4.619s -> 0m0.060s
[CREATE] vp9_rtcd.h
real 0m10.102s -> 0m0.087s
Windows
[CREATE] vpx_scale_rtcd.h
real 0m8.360s -> 0m0.080s
[CREATE] vp8_rtcd.h
real 1m8.083s -> 0m0.160s
[CREATE] vp9_rtcd.h
real 2m6.489s -> 0m0.233s
Change-Id: Idfb71188206c91237d6a3c3a81dfe00d103f11ee
Removing all copies of identical vp8_mse2psnr/vp9_mse2psnr functions.
Using vpx_sse_to_psnr() instead in all places.
Change-Id: I15beef9834d43d8fc8a8a7a2d1fc5de3d658fed8
Added support for external frame buffers to libvpx's VP9 decoder.
If the external frame buffer functions are set then libvpx will
call the get function whenever it needs a new frame buffer to
decode a frame into. And it will call the release function
whenever there are no more references to that buffer.
Change-Id: Id2934d005f606af6e052fb6db0d5b7c02f567522
