Fix a last few warnings with multithread, arm, 32 bit

Change-Id: Ic7c67616c370d0ff87562a232fb1e5df0702dc86

Changes relating to Issue 411

Removed code that was clearing down the segmentation data each
frame.

Added range/parameter checking in vp8_set_roimap(); Return error
if called when cyclic_refresh is enabled.

Correct setup_features() so that it sets or clears the segment update
flags as appropriate.

Change-Id: Ib31ac53006640ddf1ba7b9ec8f8b952e3eff860a

Soft enable runtime cpu detect for armv7-android target, so that it
can be disabled and remove dependency on 'cpufeatures' lib.
Change the arm_cpu_caps implementation selection such that 'no rtcd' takes
precedence over system type.

Switch to use -mtune instead of -mcpu. NDK was complaining about
-mcpu=cortex-a8 conflicting with -march=armv7-a, not sure why.

Add a linker flag to fix some cortex-a8 bug, as suggested by NDK Dev
Guide.

Examples:
Configure for armv7+neon:

./configure --target=armv7-android-gcc \
            --sdk-path=/path/to/android/ndk \
            --disable-runtime-cpu-detect \
            --enable-realtime-only \
            --disable-unit-tests

...armv7 w/o neon:

./configure --target=armv7-android-gcc \
            --sdk-path=/path/to/android/ndk \
            --disable-runtime-cpu-detect \
            --enable-realtime-only \
            --disable-neon \
            --cpu=cortex-a9 \
            --disable-unit-tests

Change-Id: I37e2c0592745208979deec38f7658378d4bd6cfa

The function vp8_post_proc_down_and_across_c takes the
stride of both the src and dst images as parameters, but
assumes that they are the same.

I modified the code to use the correct strides, as the
assembler versions of these functions do.

Change-Id: I222715b774cd071b21c15a4b0d2f4aef64a520de

vpx uses symbols in libm and thus we need to provide an indication to
the user of libvpx that if they want to link against libvpx they must
also link against libm.

Change-Id: I31d4068bf7f6f5b1fd222bcdf9e6a1a92fb6696f

Avoid a pthreads dependency via pthread_once() when compiled with
--disable-multithread.

In addition, this synchronization is disabled for Win32 as well, even
though we can be sure that the required primatives exist, so that the
requirements on the application when built with --disable-multithread
are consistent across platforms.

Users using libvpx built with --disable-multithread in a multithreaded
context should provide their own synchronization. Updated the
documentation to vpx_codec_enc_init_ver() and vpx_codec_dec_init_ver()
to note this requirement. Moved the RTCD initialization call to match
this description, as previously it didn't happen until the first
frame.

Change-Id: Id576f6bce2758362188278d3085051c218a56d4a

This currently has no effect and can create an artificial lag in e.g.,
realtime.

Change-Id: Ia1c7c6dbe7c6fe82a944f087f1b0d1dbbc0aa1b6

Allows building the library with the gcc -pedantic option, for improved
portabilty. In particular, this commit removes usage of C99/C++ style
single-line comments and dynamic struct initializers. This is a
continuation of the work done in commit 97b766a4, which removed most
of these warnings for decode only builds.

Change-Id: Id453d9c1d9f44cc0381b10c3869fabb0184d5966

Change-Id: I45849dde0ee9b7e87fa32adb65ade8486bb66556

Change-Id: I79fd7bd18aa1af41cd066ccc3d1cd16744b9c8d1

Change-Id: Ic30d7335b5bf912b39ea55f2b759fe5b7d523ca8

Removed unused parameters and code related to drop_frame.

Change-Id: I594e050d49b1805c6f72abf06005ef624256bb57

The logic for spatial resizing is done after the Q is selected for the
frame. This causes a problem that the Q we select for the (resized)
key frame may be based on a different resolution than the frame we
will encode.

This fix is to ensure that, when resize is on, the selected Q is still
based on the resolution of the frame to be encoded.

Change-Id: Ia49a9eac5f64e48d1c00dfc7ed4ce26fe84d3fa1

Visual Studio doesn't use the assembler in $PATH

Change-Id: I169f8492127cbc1d256a2fb2e749cd970040ccc8

The change in assembly offset files to define values as const int broke
Windows build, because the variables are stored in .rdata section instead
of .data section.

This CL changes the integer peeking from .data to .rdata.

Change-Id: I87e465ddcc78d39ec29f3720ea7df0ab807d5512

This change is to allow obj_int_extract to extract all integers
in the data segment. With the const keyword these variables are
forced into the .rodata segment even for zero variable value.

We had a problem before that zero valueed variables would get
assigned to BSS segment that fooled obj_int_extract to give
incorrect values.

Change-Id: Icd94f80a8ab356879894ca508bf132d20b865299

VP8_REFFRAME is the same as vpx_ref_frame_type

Change-Id: I63c2ddfb39f6ec87d1e5eb6a8852846464552b1b

clang complains about self-assignment

Change-Id: Iead70eed0a960e84a4b167f67f05b05e2965b3b6

Using if(); triggers an empty body warning with clang

Change-Id: I0fa2ee676400a974b40f8eaafca9ae668107eebb

Update the Visual Studio builds to support the new monolithic unit
test binary.

Includes minor semi-cosmetic refactoring of solution.mk, as the
%vpx.vcproj match is no longer appropriate given the test_libvpx
target.

Change-Id: I29e6e07c39e72b54a4b3eaca5b9b7877ef3fb134

Change-Id: I912384f526865089aa03ca8875591324e5c1c449

Change-Id: I1d2db53129dc6ec068093ad1e5fc0d94110473b3

Change-Id: I912384f526865089aa03ca8875591324e5c1c449

Change-Id: I1d2db53129dc6ec068093ad1e5fc0d94110473b3

Compares the sum of differences between the input block and the averaged
block. If they differ too much the block will not be filtered. Negligible
perfomance hit.

Change-Id: Ib1c31a265efd4d100b3abc4a1ea6675038c8ddde

Add PRIVATE macro for adding private_extern directive for yasm
to hide global symbols. This is only enabled if -DCHROMIUM is used
with YASM.

Also fixed a small problem with	rtcd_defs.sh to guard TEMPORAL_DENOISING.

Change-Id: I9027fce3ebddcf20078293e4b86b396f21da7857

This extends the denoiser to work for temporally scalable
coding.

I believe this also fixes a very rare but really bad bug in the original
implementation.

Change-Id: I8b3593a8c54b86eb76f785af1970935f7d56262a

Faster version of denoiser, cut cost by 1.7x for C path, by 3.3x for
SSE2 path.

Change-Id: I154786308550763bc0e3497e5fa5bfd1ce651beb

The change in assembly offset files to define values as const int broke
Windows build, because the variables are stored in .rdata section instead
of .data section.

This CL changes the integer peeking from .data to .rdata.

Change-Id: I87e465ddcc78d39ec29f3720ea7df0ab807d5512

Compares the sum of differences between the input block and the averaged
block. If they differ too much the block will not be filtered. Negligible
perfomance hit.

Change-Id: Ib1c31a265efd4d100b3abc4a1ea6675038c8ddde