In practice, this can never happen because:
- 'streak' is at most as long as a histogram
- 'count' counts the number of streaks
'streak' and 'count' are therefore at most as big as the histogram
length which is at most the max of VP8LHistogramNumCodes,
which is 256+24+(1<<10).
Change-Id: I31c8834543479c8a9260732313ea26b045519515
The default template for https://issues.webmproject.org/ is a public bug
report. Security issues can be reported securely using the 'Security
report' template.
Change-Id: Id489253c0def8a4d6d26327ea93ef4c796703ff1
The row parameter became a constant in:
2102ccd update the Unfilter API in dsp to process one row independently
num_rows is always equal to height.
Change-Id: Ie43dc5ef222e442ce8c92766da0b9824ccbca236
The inverse parameter became a constant in:
2102ccd update the Unfilter API in dsp to process one row independently
The row parameter to these functions is in a similar state; it will be
removed in a follow up.
Change-Id: I94cd8babe0e42474ff794ba5fa29dd48039de5f8
Replace vmovl_u8 -> s16 + signed vaddq with unsigned vaddw.
No change in assembly with clang-16 (armv7 & aarch64) and gcc-13
(aarch64). armv7 gcc-13 had kept the vmovl instructions, those are now
gone.
Change-Id: Ibb4fbdd5680d3e9dd06933c100528a6f363de472
Replace the only use of 'prediction transform' with 'predictor
transform' which is used throughout the text.
Spotted by thakis@.
Bug: webp:355607636
Change-Id: Ic4e1f08e2ff94da82824cee24c86a4fa42c7ec28
This brings minor size improvements because repetitive values in
the transform images are easily explainable through LZ77. Still,
it makes an upcoming pull request a bit more stable.
This is a rollforward of
7ec51c5916ee26766a89
Change-Id: I254ab3ccd5053344f89099280e8d994ecd55aee0
This needs to be done with signed saturation as the sum may be negative.
fixes mismatch with C code after:
3bfb05e3 Add AArch64 Neon implementation of Intra16Preds
Change-Id: I017e939d7155cc3489ceb76fc8ad50ac9917f23d
This needs to be done with signed saturation as the sum may be negative.
fixes mismatch with C code after:
baa93808 Add AArch64 Neon implementation of Intra4Preds
Change-Id: I190c3d7f78cfd2c7ae83fb7059de41e307abda36
* changes:
Use QuantizeBlock_NEON for VP8EncQuantizeBlockWHT on Arm
Add AArch64 Neon implementation of Intra16Preds
Add AArch64 Neon implementation of Intra4Preds
Add a Neon implementation of Intra16Preds for use on 64-bit Arm
platforms. (This implementation cannot be used on 32-bit Arm
platforms as it makes use of a number of AArch64-only Neon
instructions.)
Change-Id: I24c67cd54b66307e3924fd332c2795fd7422f082
Add Neon implementation of Intra4Preds for use on 64-bit Arm
platforms. (The same implementation cannot be used for 32-bit Arm
platforms as it uses a number of AArch64-only Neon instructions.)
Change-Id: Id781e7614f4e8e876dfeecd95cfc85e04611d8c6
oss-fuzz does not support dynamic libraries so we stick to
static. But libtiff.a has undefined symbols on Ubuntu, so we
have to disable TIFF.
Change-Id: Ibd1932f5780a0af51b6b398ae6415eed8685a0be
The lossless encoding speed-ups are:
- up to 1% with default parameters
- up to 4% in cruncher mode: -q 100 -m 6
Change-Id: Id92d4bad0b0a2c28c8aa9ff5280eea5717017f30
