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Change-Id: I5fe581d797571a7a9432fbd17fc557591d0c1afa
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Change-Id: I65105a9c63832669237e6a6a7fcb4ea3ea683346
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Clamp mv search to accomodate subpixel filtering
of UV mv.
Change-Id: Iab3ed405993ef6bf779ad7cf60863153068fb7d1
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Scott suggested to move vp8_mv_pred() under "case NEWMV" to save
extra checks.
Change-Id: I09e69892f34a08dd425a4d81cfcc83674e344a20
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Do mvp clamping in full-pixel precision instead of 1/8-pixel
precision to avoid error caused by right shifting operation.
Also, further fixed the motion vector limit calculation in change:
b7480454706a6b15bf091e659cd6227ab373c1a6
Change-Id: Ied88a4f7ddfb0476eb9f7afc6ceeddbf209fffd7
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Change-Id: I1ed739522db7c00c189851c7095c1b64ef6412ce
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Separate simple filter with reduced no. of parameters.
MB filter level picking based on precalculated table. Level table updated for
each frame. Inside and edge limits precalculated and updated just when
sharpness changes. HEV threshhold is constant.
ARM targets use scalars and others vectors.
Change works only with --target=generic-gnu
All other targets have to be updated!
Change-Id: I6b73aca6b525075b20129a371699b2561bd4d51c
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Allow the encoder to inform the application that the encoded frame will not
be used as a reference.
Change-Id: I90e41962325ef73d44da03327deb340d6f7f4860
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This should fix binaries using PIC on x86-32. Also should
fix issue 343.
Change-Id: I591de3ad68c8a8bb16054bd8f987a75b4e2bad02
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Motion vector limits are calculated using right shifts, which
could give wrong results for negative numbers. James Berry's
test on one clip showed encoder produced some artifacts. This
change fixed that.
Change-Id: I035fc02280b10455b7f6eb388f7c2e33b796b018
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In this commit I have added an experimental function
that tests prediction quality either side of a central position
to calculate a suggested boost number for an ARF frame.
The function is passed an offset from the current position and
a number of frames to search forwards and backwards.
It returns a forward, backward and compound boost number.
The new code can be deactivated using #define NEW_BOOST 0
In its current default state the code searches forwards and backwards
from the proposed position of the next alt ref.
The the old code used a boost number calculated by scanning forward
from the previous GF up to the proposed alt ref frame position.
I have also added some code to try and prevent placement of a gf/arf
where there is a brief flash.
Change-Id: I98af789a5181148659f10dd5dd2ff2d4250cd51c
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Values were set, then reset. Only set them once.
Change-Id: Iaf43c8467129f2f261f04fa9188b603aa46216b5
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Change-Id: I3683cb87e9cb7c36fc22c1d70f0799c7c46a21df
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There were many instances in the code of vp8_coef_tokens and
vp8_coef_tokens-1, which was a preprocessor macro despite the naming
convention. Replace these with MAX_ENTROPY_TOKENS and ENTROPY_NODES,
respectively.
Change-Id: I72c4f6c7634c94e1fa066cd511471e5592c748da
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Change-Id: Ieb2f3827ae7896ae594203b702b3e8fa8fb63d37
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With this commit frames can be received partition-by-partition
from the encoder and passed partition-by-partition to the
decoder.
At the encoder-side this makes it easier to split encoded
frames at partition boundaries, useful when packetizing
frames. When VPX_CODEC_USE_OUTPUT_PARTITION is enabled,
several VPX_CODEC_CX_FRAME_PKT packets will be returned
from vpx_codec_get_cx_data(), containing one partition
each. The partition_id (starting at 0) specifies the decoding
order of the partitions. All partitions but the last has
the VPX_FRAME_IS_FRAGMENT flag set.
At the decoder this opens up the possibility of decoding partition
N even though partition N-1 was lost (given that independent
partitioning has been enabled in the encoder) if more info
about the missing parts of the stream is available through
external signaling.
Each partition is passed to the decoder through the
vpx_codec_decode() function, with the data pointer pointing
to the start of the partition, and with data_sz equal to the
size of the partition. Missing partitions can be signaled to
the decoder by setting data != NULL and data_sz = 0. When
all partitions have been given to the decoder "end of data"
should be signaled by calling vpx_codec_decode() with
data = NULL and data_sz = 0.
The first partition is the first partition according to the
VP8 bitstream + the uncompressed data chunk + DCT address
offsets if multiple residual partitions are used.
Change-Id: I5bc0682b9e4112e0db77904755c694c3c7ac6e74
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Adding support in the encoder for generating
independent residual partitions by forcing
equal probabilities over the prev coef entropy
contexts.
Change-Id: I402f5c353255f3ca20eae2620af739f6a498cd21
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The current code stores pointers to coefficient tables and loads them to
access the tables contents. As these pointers are stored in the code
sections, it means we end up with text relocations. eu-findtextrel will
thus complain about code not compiled with -fpic/-fPIC.
Since the pointers are stored in the code sections, we can actually cheat
and let the assembler generate relative addressing when accessing the
coefficient tables, and just load their location with adr.
Change-Id: Ib74ae2d3f2bab80b29991355f2dbe6955f38f6ae
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Change Ieb746989: Removed B_MODE_INFO missed this.
Change-Id: I32202555581cc2a5d45e729c6650ada4d2df55d3
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Also includes a couple of error concealment bug fixes:
- the segment_id wasn't properly initialized when missing
- when interpolating and no neighbors are found, set to zero
- clear the qcoef buffer when concealing an MB
Change-Id: Id79c876b41d78b559a2241e9cd0fd2cae6198f49
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Only the first frame buffer ref counter was being initialized
because the index was fixed at 0 rather than using i.
Change-Id: Ib842298be4a5e3607f9e21c2cd4bfbee4054ffc4
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I got this idea from Pascal (Thanks). Before encoding a macroblock,
copy it to a 16x16 buffer, and then read source data from there
instead. This will help keep the source data in cache, and help
with the performance.
Change-Id: Id05f4cb601299150511d59dcba0ae62c49b5b757
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This reverts commit 212f6183739d448ad5fa2ccf1b4edd30829b2806.
Further testing shows that the overshoot accumulation/damping is too
aggressive on some clips. Allowing the accumulated overshoot to
decay and limiting to damping to golden frames shows some promise.
But some clips show significant overshoot in the buffer window, so
I think this still needs work.
Change-Id: Ic02a9ca34f55229f9cc04786f4fab54cdc1a3ef5
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vp8_yv12_copy_frame_ptr() expects same size
buffers which was not previously gaurenteed.
Using an improperly allocated buffer would
cause a crash before.
Change-Id: I904982313ce9352474f80de842013dcd89f48685
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Useful for leaving out any version specific asm files.
Change-Id: I233514410eb9d7ca88d2d2c839673122c507fa99
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RDMULT/RDDIV defines a bit worth of distortion in term of sum squared
difference. This has also been used as errorperbit in subpixel motion
search, where the distortions computed as variance of the difference.
The variance of differences is different from sum squared differences
by amount of DC squared. Typically, for inter predicted MBs, this
difference averages around 10% between the two distortion, so this patch
introduces a 110% constant in deriving errorperbit from RDMULT/RDDIV.
Test on CIF set shows small but positive gain on overall PSNR (.03%)
and SSIM (.07%), overall impact on average PSNR is 0.
Change-Id: I95425f922d037b4d96083064a10c7cdd4948ee62
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Relocated the vp8dx_bool_decoder_fill() call, allowing
the compiler to produce better assembly code. Tests
showed a 1 - 2 % performance boost (x86 using gcc)
for the 720p clip used.
Change-Id: Ic5a4eefed8777e6eefa007d4f12dfc7e64482732
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About 9~10% decoding perf improvement on non-Neon ARM cpus
Change-Id: I7dc2a026764e84e9c2faf282b4ae113090326837
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The starting points are always within the limits, and bounds
checking on these points is not needed. For speed < 5, the
encoded result changes a little because different treatment
is taken while starting point equals the bounds.
Change-Id: I09a402d310f51e305a3519f1601b1d17b05c6152
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