Brion Vibber [Mon, 2 May 2016 16:41:59 +0000 (12:41 -0400)]
Add --enable-shared option to iosbuild.sh to build dynamic framework
Also allows use of --enable-shared when configuring for Mac OS X,
producing a bare .dylib.
Enabling the shared framework bumps the iOS deployment target to 8.0,
the minimum required to support dynamic framework deployment in apps.
When not using --enable-shared, a static library for iOS 6.0+ will still
be built.
Minimum version settings have been moved into ios-version.sh so they
can be updated in a single place.
As with the static build, unless header search paths are manually
tweaked, users must add a VPX prefix on includes, such as:
#include <VPX/vpx/vpx_decoder.h>
A module map for headers is not yet included as inttypes.h is not
modular; this means that VPX cannot be used directly in Swift code,
but can still be pulled in through an Objective-C wrapper.
Issue introduced in https://chromium-review.googlesource.com/#/c/339162/.
The factor on avg_frame_qindex[INTER_FRAME] in that CL, used for q-basis to
set active_best, can cause the QP to decrease too slowly or get stuck
in some cases when max-q=63.
Removing that factor fixes the regression in issue#1217.
Yaowu Xu [Wed, 11 May 2016 20:52:59 +0000 (13:52 -0700)]
Change to use correct check for halfpel
In motion estimation stage for subpel motion, subpel variance is
computed use bilinear interpolation. The motion vector precision
used is at 1/8 pel and three bits are used to represent the x and y
subpel offsets. Based on this, the half pel check should be against
4, not 8.
Linfeng Zhang [Wed, 11 May 2016 19:39:42 +0000 (12:39 -0700)]
remove mmx variance functions
there are sse2 equivalents which is a reasonable modern baseline
Removed mmx variance functions:
vpx_get_mb_ss_mmx()
vpx_get8x8var_mmx()
vpx_get4x4var_mmx()
vpx_variance4x4_mmx()
vpx_variance8x8_mmx()
vpx_mse16x16_mmx()
vpx_variance16x16_mmx()
vpx_variance16x8_mmx()
vpx_variance8x16_mmx()
paulwilkins [Thu, 5 May 2016 10:37:04 +0000 (11:37 +0100)]
Fixed 8K two pass encoder crash.
Bug found by Yunqing relating to the correction for size at 8K and
above in get_twopass_worst_quality().
The basis for the correction was changed to the linear size relative to
1080P as a baseline and the adjustment has been clamped to prevent
problems at extreme images sizes.
For 1080P the results on our test sets were neutral but the low res and
mid res sets saw a small gain (0.1%-0.2% average).
I would also expect some gains on 4k and larger content where the
previous correction was overly aggressive.
hui su [Thu, 5 May 2016 22:37:37 +0000 (15:37 -0700)]
Add VP9 encoder API for level specification.
Add control API VP9E_SET_TARGET_LEVEL that allows the encoder to
control the output bitstream level and/or keep level related
statistics.
Usage:
255 do not care about level (default)
0 keep level related stats only
10 target for level 1
11 target for level 1.1
.
.
.
62 target for level 6.2
Alex Converse [Mon, 9 May 2016 18:21:20 +0000 (11:21 -0700)]
pickmode: Fix a pair of unsigned overflows.
block_variance: This operates on 8x8s and would be safe with a int32 *
int32 to uint32 multiply, but this is potentially unsafe for 12-bit
input. Unfortunately the code already segfaults on 12-bit input:
https://bugs.chromium.org/p/webm/issues/detail?id=1223
calculate_variance: This operates on up to a 32x32 of 8x8s and can
overflow even with 8-bit input (log2((256*32*32)**2) == 36).
Johann [Sat, 7 May 2016 00:20:15 +0000 (17:20 -0700)]
Remove sixtap/bilinear 4x4 neon implementations
These implementations rely on casting the pointers to load the data.
Clang implemented optimizations which automatically add alignment hints
to such loads. The 4x4 filters do not guarantee the necessary alignment
so the resulting assembly is broken.
https://llvm.org/bugs/show_bug.cgi?id=24421
James Zern [Fri, 6 May 2016 02:25:29 +0000 (02:25 +0000)]
Merge changes from topic 'missing-proto'
* changes:
vp9_frame_scale_ssse3.c: make 2 functions static
vp9_pickmode.c: make function static
vp9_noise_estimate.c: make function static
vp9_aq_360.c: add missing include
vp9_idct_intrin_sse2: add missing vp9_rtcd.h include
vpx_dsp/*.[hc]: add missing vpx_dsp_rtcd.h include
Marco [Fri, 29 Apr 2016 22:52:45 +0000 (15:52 -0700)]
vp9: Reduce qp threshold for limiting cyclic refresh on steady blocks.
Makes the delta-qp stop little earlier on areas that have been refreshed enough.
This helps to reduce some pulsing artifact on noisy flat areas observed in some
noisy vc-clips.
Threshold changes only take effect for sources where noise level is estimated to
be >= medium level.
Marco [Thu, 5 May 2016 01:11:19 +0000 (18:11 -0700)]
vp9: Modify logic for gf setting based on up-coming key frame.
For 1 pass vbr mode:
Refactor to move the logic for gf setting based on up-coming
key frames to a separate function, so same logic can be used for
scene-cuts/changes.
Brion Vibber [Tue, 3 May 2016 07:03:59 +0000 (03:03 -0400)]
Skip inttypes.h on Darwin
When building a dynamic framework with Swift compatibility, can't
include any headers that aren't in another module or you get an
error like this from Xcode on the including project:
Include of non-modular header inside framework
For some reason the system inttypes.h is not in a module, unlike
other standard C library headers... but it doesn't seem to be
actually needed on Darwin, so removing it doesn't appear to
be a problem.
Yaowu Xu [Wed, 4 May 2016 19:12:02 +0000 (12:12 -0700)]
Change to use proper type in vp{9,10}_token_state
"qc" in vp{9,10}_token_state is used to save quantized coefficients, this
commit changes the type from short to tran_low_t to properly reflect
the value range for highbitdepth build.
This fixes an out-of-range bug when optimize_b is used in highbitdepth
build.
Jim Bankoski [Tue, 3 May 2016 23:23:06 +0000 (16:23 -0700)]
libvpx: add a unit test for plane_add_noise.
In so doing this fixes a couple of bugs:
vpx_plane_add_noise.c needed to subtract a clamp instead of add.
And the assembly (mmx sse) had assumptions that parameters were
continuous in memory which was not true.
Tom Finegan [Mon, 2 May 2016 17:42:00 +0000 (10:42 -0700)]
configure.sh: Remove armv6-darwin target.
- iOS SDKs no longer ship with armv6 support.
- Our minimum iOS version means all target devices have neon.
- Remove armv6 darwin LD workaround.
- This removes a TODO.
projects / libvpx / log