Storing vp8_bilinear_filters_mmx in an mmx file and using it in an sse2
file is bad
Moving towards allowing --disable-mmx
Change-Id: I20493b35bdedcdcfc0915e6f05fdbe6c81a4a742
There was an implicit reference frame test order (typically LAST,
GOLD, ARF) in the mode selection logic, but this doesn't provide the
expected results when some reference frames are disabled. For
instance, in real-time mode, the speed selection logic often disables
the ARF modes. So if the user disables the LAST and GOLD frames, the
encoder was always choosing INTRA, when in reality searching the ARF
in this case has the same speed penalty as searching LAST would have
had.
Instead, introduce the notion of a reference frame search order. This
patch preserves the former priorities, so if a frame is disabled, the
other frames bump up a slot to take its place. This patch lays the
groundwork for doing something smarter in the frame test order, for
example considering temporal distance or looking at the frames used by
nearby blocks.
Change-Id: I1199149f8662a408537c653d2c021c7f1d29a700
Extend buffer write validation (overflow check) to single token
partition packing, both mb and row based functions.
Change-Id: I36e19b7d37fc43712d05c70e3ad223d3eb5b973d
The buffer level was able to increase indefinitely rather than
being clipped to the maximum buffer size specified by the user.
This change checks the buffrer level and prevents it from
going beyond the upper limit of the buffer.
Change-Id: Ifff55f79d3c018e4d3d77e554b11ada543cc1654
This commit has a few minor fixes to the 8x8 trellis quant, so to
make it work regardless if extend_qrange is enabled or not. It also
borrowed adaptive RDMULT constants from 4x4 trellis that was missed
in the 8x8 trellis quant.
Change-Id: I60d7769071f102c699b5084597e62bca87a1f759
Explicit inclusion of limits.h to satisfy unix build for definition of INT_MAX.
Some commented out code removed.
Change-Id: I5b5980dfaa9b4d2d12bfd729cfd35bd982106908
Patch set 2: 64 bit build fix
Patch set 3: 64 bit crash fix
[Tero]
Patch set 4: Updated ARMv6 and NEON assembly.
Added also minor NEON optimizations to subtract
functions.
Patch set 5: x86 stride bug fix
Change-Id: I1fcca93e90c89b89ddc204e1c18f208682675c15
Removal of CONFIGURE_SEGMENTATION ifdefs.
Removal of legacy support code fo the old coding mechanism.
Use local reference "xd" for MACROBLOCKD structure in
encode_frame_to_data_rate()
Moved call to choose_segmap_coding_method() out of encode
loop as the cost of segmentation is not properly accounted
in the loop anyway. If this is desirable in the future it
can be moved back. The use of this function to do all the
analysis and set the probabilities also removes the need
to track segment useage in threading code.
Change-Id: I85bc8fd63440e7176c73d26cb742698f9b70cade
Changed name and sense of segment_flag to "seg_id_predicted"
Added some additional comments and retested.
I also did some experimentation with a spatial prediction option
using a similar strategy to the temporal mode implemented.
This helps in some cases where temporal prediction is bad but
I suspect there is more overlap here with work on a larger scale
block structure and spatial correlation will likely be better
handled through that mechanism.
Next check in will remove #ifdefs and legacy mode code.
Change-Id: I3b382b65ed2a57bd7775ac0f3a01a9508a209cbc
This check in includes quite a lot of clean up and refactoring.
Most of the analysis and set up for the different coding options for the
segment map (currently simple distribution based coding or temporaly
predicted coding), has been moved to one location (the function
choose_segmap_coding_method() in segmenation.c). This code was previously
scattered around in various locations making integration with other
experiments and modification / debug more difficult.
Currently the functionality is as it was with the exception that the
prediction probabilities are now only transmitted when the temporal
prediction mode is selected.
There is still quite a bit more clean up work that will be possible
when the #ifdef is removed. Also at that time I may rename and alter
the sense of macroblock based variable "segment_flag" which indicates
(1 that the segmnet id is not predicted vs 0 that it is predicted).
I also intend to experiment with a spatial prediction mode that can be
used when coding a key frame segment map or in cases where temporal
prediction does not work well but there is spatial correlation.
In a later check in when the ifdefs have gone I may also move the call
to choose_segmap_coding_method() to just before where the bitsream is
packed (currently it is in vp8_encode_frame()) to further reduce the
possibility of clashes with other experiments and prevent it being called
on each itteration of the recode loop.
Change-Id: I3d4aba2a2826ec21f367678d5b07c1d1c36db168
The calculated frame_rate is a state variable in the codec, and
shouldn't be maintained in the configuration struct. Move it to the
main part of cpi so that it isn't clobbered when the configuration
struct is updated. The initial framerate estimate is moved from the
vp8_cx_iface.c wrapper into the body of init_config() in onyx_if.c, so
that it is only called once and not reset on every call to
vp8_change_config().
Change-Id: I8d9a3d1283330d1ee297d07e9d78d1f2875f2465
Added last_segmentation_map[] structure
to keep track of what we had before when
doing temporal prediction. With this change
the existing code does once again appear to
be giving a decodable bitstream for both
temporal and standard prediction modes.
However, it is still somewhat messy and
confused and there is no option to take
advantage of spatial prediction so it could
do with further work.
Some housekeeping / clean out.
Change-Id: I368258243f82127b81d8dffa7ada615208513b47
Some initial cleanup to aid testing and debug.
Pull code to choose temporal or spatial encoding
out of encodeframe.c into a dedicated function
in segmentation.c.
For now disable broken temporal mode.
Move the coding of "temporal_update" flag and
only transmit if segment map update is indicated.
Rename the functions read_mb_features() and
write_mb_features() to read_mb_segid() and
read_mb_segid() as they only read and write
the macroblock segment id not any of the
features.
Change-Id: Ib75118520b1144c24d35fdfc6ce46106803cabcf
This commit added scaling factors to 8x8 transform, quant, dequant and
inverse transform pipeline to make 8x8 transform to work when configed
with enable-extend_qrange. This commit also disabled the trellis-quant
when extend_qrange is configured.
Change-Id: Icfb3192e4746f70a4bb35ad18b7b47705b657e52
extend_qrange introduces a different scaling factor, this commit takes
the scaling difference into account for reset 2nd order coefficients.
Change-Id: Ie58bca9f52698fa759e3f88da2aa4d82630fa91a
For ease of testing and merging experiments I have
removed in line code in encode_frame() that assigns
MBs to be t8x8 or t4x4 coded segments and have
moved the decision point and segment setup to
the init_seg_features0 test function.
Keeping everything in one place helps make sure
for now that experiments using segmentation are
not fighting each other.
Also made sure mode selection code can't choose 4x4
modes if t8x8 is selected.
Patch2: In init_seg_features() add checks
for SEG_LVL_TRANSFORM active.
Change-Id: Ia1767edd99b78510011d4251539f9bc325842e3a
Call the idct/add after the tokenize. This is WIP with
the goal of creating a common idct/add for the encoder and
decoder. This move is necessary because the decoder's version
of the idct clobbers qcoeff, which is used by the tokenize.
Change-Id: I6b08d8e8397cd873647fa4fb9469884e3c876756
Removed code in #if CONFIG_SEGMENTATION that
enables segmentation and creates a test segmentation
map, to avoid conflicts with the other segmentation test
code,
Change-Id: I7a21a44ed188b814cd80b30dd628c62474eba730
Bug fix to logic in vp8_pick_inter_mode() and
vp8_rd_pick_inter_mode().
The block on the use of segment features
for the cm->refresh_alt_ref_frame case
was just for testing and is not correct.
The special case code for alt ref can
be re-enabled as an else clause.
Change-Id: Ic9b57cdb5f04ea7737032b8fb953d84d7717b3ce
Added ARM optimized intra 4x4 prediction
- 2x faster on Profiler compared to C-code compiled with -O3
- Function interface changed a little to improve BLOCKD structure
access
Change-Id: I9bc2b723155943fe0cf03dd9ca5f1760f7a81f54
The 8x8 forward transform makes use of floating operations, therefore
requires emms call to reset mmx registers to correct state. Without
the resets, the 8x8 forward transform results are indefinite on win32
platform.
Change-Id: Ib5b71c3213e10b8a04fe776adf885f3714e7deb1
vp8cx_mb_init_quantizer() needs to be called at least once to get
all values calculated. This change added one check to decide if
we could skip initialization or not.
Change-Id: I3f65eb548be57580a61444328336bc18c25c085b
Initial attempt at using new segment feature signaling
to indicate 4x4 or 8x8 transform.
needs --enable-experimental --enable-t8x8
Note this is work in progress.
Change-Id: Ib160d46a5d810307bfcbc79853ce1a65b5b870b7
Added code to clip the buffer level to the maximum buffer
size. Without this the buffer level would increase
unchecked.
This bug was found when encoding an essentially static
scene at 2Mb/s. The encoder is unable to generate frames
consistent with the high data-rate because Q bottoms out
at Qmin.
As frames generated are consistently undersized the buffer
level increases and does not get checked against the
maximum size specified by the user (or default).
Change-Id: Id8a3c6323d3246da50f7cb53ddbf78b5528032c6
Fix compiler warning for passing a non const array
to a function expecting a const array by using an
intermediary pointer and casting.
Change-Id: I9bdd358ebdc926223993fb8fb2098ffedd2f3fc7
Temporary check in to turn off other segment features
tests when #if CONFIG_T8X8 is set as the assignment of
MBs to differnt segments in each case will conflict.
The 8x8 code will be modified to use the new segment
feature method properly in a later check in.
Increase bits allowed for EOB end stop marker to 6 ready
for 8x8.
Change-Id: I4835bc8d3bf98e1775c3d247d778639c90b01f7f
No change to functionality or output.
Updates to the segment feature data structure now all done
through functions such as set_segdata() and get_segdata()
in seg_common.c.
The reason for this is to make changing the structures (if needed)
and debug easier.
In addition it provides a single location for subsequent addition
of range and validity checks. For example valid combination of
mode and reference frame.
Change-Id: I2e866505562db4e4cb6f17a472b25b4465f01add
This commit tries to do UV intra mode coding adaptive to Y intra mode.
Entropy context is defined as conditional PDF of uv intra mode given
the Y mode. All constants are normalized with 256 to be fit in 8 bits.
This provides further coding efficiency beyond the quantizer adaptive
y intra mode coding. Consistent gains were observed on all clips and
all bit rates for HD all key encoding tests.
To test, configure with
--enable-experimental --enable-uvintra
Change-Id: I2d78d73f143127f063e19bd0bac3b68c418d756a
As discovered in path 10 of Change Ia12acd2f, reset 2nd order coeffs
without reset of above and left coding context may have introduced
problem that causes encoder/decoder mismatching. This commit added
update to coding context when the 2nd coefficients are cleared.
In addition, this commit also introduced early breakout in the checks
to speed up when coefficients are too significant to be cleared.
Change-Id: I85322a432b11e8af85001525d1e9dc218f9a0bd6
Removal of configure #ifdefs so that segment features
always available. Removal of code supporting old
segment feature method.
Still a good deal of tidying up to do.
Change-Id: I397855f086f8c09ab1fae0a5f65d9e06d2e3e39f
Changed 'int eob' to 'char *eob' in BLOCKD so that both encoder and
decoder will use eobs[25] array from MACROBLOCKD structure. In future,
this will enable use of the decoder side IDCT in the encoder.
Change-Id: I6e1c011628cb8864fd4a0b80f0279ce16a5ca978
Modify reference frame segmentation so that ONE or MORE
reference frames may be marked as a available for a given
segment.
Fixed bugs relating to segment coding of INTRA and some
INTER modes at the segment level.
Modified Q boost for static areas based on ambient average Q.
Strong results now on clips with significant static areas.
(some data points in derf set as high as 9% and some static &
slide show type content in YT set > 20%)
Change-Id: Ia79f912efa84b977f35a23683ae3643251e24f0c
In some situations (f.g. error-resilient is turned on), vp8cx_mb
_init_quantizer() was called once per macroblock. Added checks
to avoid calculations when there is no change.
Change-Id: Ie4f0a5ade2202041254990a4e9d5b03bd1ac5aea
