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Change-Id: I0d41415e3961c2c9492d342290c1999f9d02e6d8
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manipulating it in situ via a pointer.
Change-Id: If4a87a4eccd84f39577c0e91e171245f4954c5cf
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Applied same method used in vp8_rd_pick_inter_mode() to improve
the accuracy of MV prediction.
Change-Id: Ia50ae26208b18482695601f32febd99fe89fbc17
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Adds following targets to configure script to support RVCT compilation
without operating system support (for Profiler or bare metal images).
- armv5te-none-rvct
- armv6-none-rvct
- armv7-none-rvct
To strip OS specific parts from the code "os_support"-config was added
to script and CONFIG_OS_SUPPORT flag is used in the code to exclude OS
specific parts such as OS specific includes and function calls for
timers and threads etc. This was done to enable RVCT compilation for
profiling purposes or running the image on bare metal target with
Lauterbach.
Removed separate AREA directives for READONLY data in armv6 and neon
assembly files to fix the RVCT compilation. Otherwise
"ldr <reg>, =label" syntax would have been needed to prevent linker
errors. This syntax is not supported by older gnu assemblers.
Change-Id: I14f4c68529e8c27397502fbc3010a54e505ddb43
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Reduce the code size.
Change-Id: I2e1998557a3c8776e262c442fd758c25e17aff7a
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A new vpx_codec_control called VP8D_GET_FRAME_CORRUPTED. The output
from the function is non-zero if the last decoded frame contains
corruption due to packet losses.
The decoder is also modified to accept encoded frames of zero length.
A zero length frame indicates to the decoder that one or more frames
have been completely lost. This will mark the last decoded reference
buffer as corrupted. The data pointer can be NULL if the length is
zero.
Change-Id: Ic5902c785a281c6e05329deea958554b7a6c75ce
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Removing unused local variables causing compiler warnings in
Visual Studio.
Change-Id: I0e2096303be1fdbc01428a6e57cca9796bb32c8a
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The merge includes hooks to for CQ mode and other code
changes merged from the test branch.
CQ mode attempts to maintain a more stable quantizer within a clip
whilst also trying to adhere to a guidline maximum bitrate.
The existing target data rate parameter is used to specify the
guideline maximum bitrate.
A new parameter allows the user to specify a target CQ level.
For normal (non kf/gf/arf) frames, the quantizer will not drop BELOW the
user specified value (0-63). However, in some cases the encoder may
choose to impose a target CQ that is above that specified by the user,
if it estimates that consistent use of the target value is not compatible
with guideline maximum bitrate.
Change-Id: I2221f9eecae8cc3c431d36caf83503941b25e4c1
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Scott pointed out that last_frame_type only gets updated while
loopfilter exists. Since last_frame_type is also needed in
motion search now, it needs to be updated every frame.
Change-Id: I9203532fd67361588d4024628d9ddb8e391ad912
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Add a new encoder control, VP8E_SET_TUNING, to allow the application
to inform the encoder that the material will benefit from certain
tuning. Expose this control as the --tune option to vpxenc. The args
helper is expanded to support enumerated arguments by name or value.
Two tunings are provided by this patch, PSNR (default) and SSIM.
Activity masking is made dependent on setting --tune=ssim, as the
current implementation hurts speed (10%) and PSNR (2.7% avg,
10% peak) too much for it to be a default yet.
Change-Id: I110d969381c4805347ff5a0ffaf1a14ca1965257
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Per John's previous change, shrink TOKENEXTRA from 20 to 8 bytes
original: b7b1e6fb
reverted: 41f4458a
Also drop unused field from vp8_extra_bit_struct
Update ARM ASM to deal with this change. In particular, Extra is signed
and needs to be sign-extended when loaded.
Change-Id: Ibd0ddc058432bc7bb09222d6ce4ef77e93a30b41
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This code is unused, as the current preproc implementation uses the
same spatial filter that postproc uses.
Change-Id: Ia06d5664917d67283f279e2480016bebed602ea7
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Changed the end of block computation to use pmaxw. Removed
additional pushing and popping of registers that was not needed.
Change-Id: I08cb9b424513cd8a2c7ad8cea53b4e2adc66ef98
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There were a few errors in the comment section that describe VP8 token
alphabet table.
Change-Id: Ie6728a0e08bc3798893221b60408d5b201064bdc
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Debugging in postproc needs more flags to allow for specific
block types to be turned on or off in the visualizations.
Must be enabled with --enable-postproc-visualizer during
configuration time.
Change-Id: Ia74f357ddc3ad4fb8082afd3a64f62384e4fcb2d
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Change color reference frame to blend the macro block edge.
This helps with layering of visualizations.
Add block coloring for intra prediction modes.
Change-Id: Icefe0e189e26719cd6937cebd6727efac0b4d278
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Split motion vectors were all being treated as 4x4
blocks. Now correctly handle 16x8, 8x16, 8x8, 4x4
blocks.
Change-Id: Icf345c5e69b5e374e12456877ed7c41213ad88cc
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Now draw 16 vectors for SPLITMV mode.
Fixed constrain line to block divide by zero issues.
Blend block was not centering the shaded area correctly.
Change-Id: I1edabd8b4e553aac8d980f7b45c80159e9202434
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This eliminates a large set of warnings exposed by the Mozilla build
system (Use of C++ comments in ISO C90 source, commas at the end of
enum lists, a couple incomplete initializers, and signed/unsigned
comparisons).
It also eliminates many (but not all) of the warnings expose by newer
GCC versions and _FORTIFY_SOURCE (e.g., calling fread and fwrite
without checking the return values).
There are a few spurious warnings left on my system:
../vp8/encoder/encodemb.c:274:9: warning: 'sz' may be used
uninitialized in this function
gcc seems to be unable to figure out that the value shortcut doesn't
change between the two if blocks that test it here.
../vp8/encoder/onyx_if.c:5314:5: warning: comparison of unsigned
expression >= 0 is always true
../vp8/encoder/onyx_if.c:5319:5: warning: comparison of unsigned
expression >= 0 is always true
This is true, so far as it goes, but it's comparing against an enum, and the C
standard does not mandate that enums be unsigned, so the checks can't be
removed.
Change-Id: Iaf689ae3e3d0ddc5ade00faa474debe73b8d3395
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Turned down the blending level to make colored blocks obscure
the video less.
Not blending the entire block to give distinction to macro
block edges.
Added configuration so that macro block blending function can
be optimized.
Change to constrain line as to when dx and dy are computed.
Now draw two lines to form an arrow.
Change-Id: Id3ef0fdeeab2949a6664b2c63e2a3e1a89503f6c
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This allows multiple post processor debug levels to be overlayed.
i.e. can show colored reference blocks and visual motion vectors.
Change-Id: Ic4a1df438445b9f5780fe73adb3126e803472e53
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needs to be _recon_ not _recon_recon_
Change-Id: I7a8b9ddcb4fb72c2b723c563932c9ea52ff15982
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Post process option to color the block for either the mode
of the macro block, or the frame that the macro block references.
Change-Id: Ie498175497f2d20e3319924d352dc4ddc16f4134
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ARM NEON has a platform specific version of vp8_recon16x16mb, though
it's just a stub to extract the various parameters from the
MACROBLOCKD struct and pass them to vp8_recon16x16mb_neon(). Using
that function's prototype directly will be a better long term solution,
but it's quite an invasive change.
Change-Id: I04273149e2ade34749e2d09e7edb0c396e1dd620
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Some of the ARM functions differed from their generic counterparts
only by unrolling their loops. Since this change may be useful
on other platforms, or might even supercede the looped version
in the generic case, move it back to the generic file.
This code is left under #if ARCH_ARM for now, but it may be worth
considering a different (possibly new) conditional for these. If
it turns out that this should be runtime selectable, these
functions will have to move to the RTCD infrastructure. Don't want
to take that step at this time without more profile data.
Change-Id: I4612fdbc606fbebba4971a690fb743ad184ff15f
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These functions were true duplicates of functions present in the
generic code. This fixes some of the link errors when building
with --enable-shared --enable-pic.
Change-Id: Idff26599d510d954e439207883607ad6b74df20c
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Postproc level that uses Bresenham's line algorithm
to draw motion vectors onto the postproc buffer.
Change-Id: I34c7daa324f2bdfee71e84fcb1c50b90fa06f6fb
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there were four versions for the regular and
macroblock loopfilters:
horizontal [y|uv]
vertical [y|uv]
this moves all the common code into 2 functions:
vp8_loop_filter_neon
vp8_mbloop_filter_neon
this provides no gain in performance. there's a bit
of jitter, but it trends down ~0.25-0.5%. however,
this is a huge gain maintenance. also, there is the
potential to drop some stack usage in the macroblock
loopfilter.
Change-Id: I91506f07d2f449631ff67ad6f1b3f3be63b81a92
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The primary goal is to allow a binary to be built which supports
NEON, but can fall back to non-NEON routines, since some Android
devices do not have NEON, even if they are otherwise ARMv7 (e.g.,
Tegra).
The configure-generated flags HAVE_ARMV7, etc., are used to decide
which versions of each function to build, and when
CONFIG_RUNTIME_CPU_DETECT is enabled, the correct version is chosen
at run time.
In order for this to work, the CFLAGS must be set to something
appropriate (e.g., without -mfpu=neon for ARMv7, and with
appropriate -march and -mcpu for even earlier configurations), or
the native C code will not be able to run.
The ASFLAGS must remain set for the most advanced instruction set
required at build time, since the ARM assembler will refuse to emit
them otherwise.
I have not attempted to make any changes to configure to do this
automatically.
Doing so will probably require the addition of new configure options.
Many of the hooks for RTCD on ARM were already there, but a lot of
the code had bit-rotted, and a good deal of the ARM-specific code
is not integrated into the RTCD structs at all.
I did not try to resolve the latter, merely to add the minimal amount
of protection around them to allow RTCD to work.
Those functions that were called based on an ifdef at the calling
site were expanded to check the RTCD flags at that site, but they
should be added to an RTCD struct somewhere in the future.
The functions invoked with global function pointers still are, but
these should be moved into an RTCD struct for thread safety (I
believe every platform currently supported has atomic pointer
stores, but this is not guaranteed).
The encoder's boolhuff functions did not even have _c and armv7
suffixes, and the correct version was resolved at link time.
The token packing functions did have appropriate suffixes, but the
version was selected with a define, with no associated RTCD struct.
However, for both of these, the only armv7 instruction they actually
used was rbit, and this was completely superfluous, so I reworked
them to avoid it.
The only non-ARMv4 instruction remaining in them is clz, which is
ARMv5 (not even ARMv5TE is required).
Considering that there are no ARM-specific configs which are not at
least ARMv5TE, I did not try to detect these at runtime, and simply
enable them for ARMv5 and above.
Finally, the NEON register saving code was completely non-reentrant,
since it saved the registers to a global, static variable.
I moved the storage for this onto the stack.
A single binary built with this code was tested on an ARM11 (ARMv6)
and a Cortex A8 (ARMv7 w/NEON), for both the encoder and decoder,
and produced identical output, while using the correct accelerated
functions on each.
I did not test on any earlier processors.
Change-Id: I45cbd63a614f4554c3b325c45d46c0806f009eaa
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Most of the code that actually uses these matrices indexes them as
if they were a single contiguous array, and coverity produces
reports about the resulting accesses that overflow the static
bounds of the first row.
This is perfectly legal in C, but converting them to actual [16]
arrays should eliminate the report, and removes a good deal of
extraneous indexing and address operators from the code.
Change-Id: Ibda479e2232b3e51f9edf3b355b8640520fdbf23
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../libvpx/vp8/encoder/bitstream.c: In function ‘pack_inter_mode_mvs’:
../libvpx/vp8/encoder/bitstream.c:1026: warning: array subscript has type ‘char’
Change-Id: Ic77491e0a172fa1821e5b3e914d0dc41fe87c00f
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Filed for nasm as:
https://sourceforge.net/tracker/?func=detail&atid=106208&aid=3081103&group_id=6208
nasm just does not accept any size parameter for movhps:
1.asm:2: error: mismatch in operand sizes
Some parts of libvpx already use MMWORD for movhps and MMWORD is
defined-out so it is compatible both with yasm and nasm.
Provide nasm compatibility. No binary change by this patch with yasm on
{x86_64,i686}-fedora13-linux-gnu.
Change-Id: I4008a317ca87ec07c9ada958fcdc10a0cb589bbc
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nasm does not support `label wrt rip', it requires `rel label'. It is
still fully compatible with yasm.
Provide nasm compatibility. No binary change by this patch with yasm on
{x86_64,i686}-fedora13-linux-gnu. Few longer opcodes with nasm on
{x86_64,i686}-fedora13-linux-gnu have been checked as safe.
Change-Id: I488773a4e930a56e43b0cc72d867ee5291215f50
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nasm requires the instruction length (movd/movq) to match to its
parameters. I find it more clear to really use 64bit instructions when
we use 64bit registers in the assembly.
Provide nasm compatibility. No binary change by this patch with yasm on
{x86_64,i686}-fedora13-linux-gnu. Few longer opcodes with nasm on
{x86_64,i686}-fedora13-linux-gnu have been checked as safe.
Change-Id: Id9b1a5cdfb1bc05697e523c317a296df43d42a91
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Raised by Lei Yang, the Y plane stride was used for UV blocks.
This is clearly a typo. But as the comments in the code suggested
that this port of code has not been used yet, so the typo should
not have created any damage yet.
Change-Id: Iea895edc17469a51c803a8cc6d0fce65a1a7fc2f
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Like the ARMv6 code, these functions were accessing values below
the stack pointer, which can be corrupted by signal delivery at
any time.
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Loopfilter deltas are initialized to zero on keyframes in the decoder.
The values then persist from the previous frame unless an update bit
is set in the bitstream. This data is not included in the entropy
data saved by the 'refresh entropy' bit in the bitstream, so it is
effectively an additional contextual element beyond the 3 ref-frames
and the entropy data.
The encoder was treating this delta update bit as update-if-nonzero,
meaning that the value would be refreshed even if it hadn't changed,
and more significantly, if the correct value for the delta changed
to zero, the update wouldn't be sent, and the decoder would preserve
the last (presumably non-zero) value.
This patch updates the encoder to send an update only if the value
has changed from the previously transmitted value. It also forces the
value to be transmitted in error resilient mode, to account for lost
context in the event of lost frames.
Change-Id: I56671d5b42965d0166ac226765dbfce3e5301868
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- Scheduling for Atom processors
- Combining of macros to allow for better interleaving
- Change from multiplies to adds for main filter
- Use of movhps/movlps to fill xmm registers without
shifting and orring
Change-Id: I0b3500a5f58abf7085253ec92d64c8a96723040b
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The existing code applied a 6-tap filter with 0's on either end.
We're already paying the branch penalty to avoid computing the two
extra columns needed as input to this filter.
We might as well save time computing the filter as well.
This reduces the inner loop from 21 instructions to 16, the number
of loads per iteration from 4 to 1, and the number of multiplies
from 7 to 4.
The gain in overall decoding performance, however, is small (less
than 1%).
This change also means we now valgrind clean on ARMv6, which is
its real purpose.
The errors reported here were valgrind's fault (it does not detect
that 0 times an uninitialized value is initialized), but Julian
Seward says it would slow down valgrind considerably to make such
checks.
Speeding up libvpx rather, even by a small amount, seems a much
better idea if only to enable proper valgrind checking of the
rest of the codec.
Change-Id: Ifb376ea195e086b60f61daf1097d8910c4d8ff16
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Missed the .h file in the move.
Change-Id: Ib408183fbb4d019fd46394b362f89ca6ea9d10bc
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