C version and sse2 version, and off by default.
For the test clip used, the sse2 performance improved by ~5.6%
Change-Id: Ic2d815968849db51b9d62085d7a490d0e01574f6
Allow for an option to selectively apply the deblocking loop filter to the denoised
raw block, based on the denoised state (no-filter, filter with zero motion, or filter with non-zero motion)
of the current block and its upper and left denoised block.
This helps to reduce some blocking artifacts from the motion-compensated denoising.
Change-Id: I0ac4e70076df69a98c5391979e739a2681e24ae6
This commit fixes frame header decoding for superframe index, to
prevent out of boundary memory read triggered by fuzz test
vector. It resolves a chromium security violation issue
crbug.com/376802.
The issue was introduced in the change:
Add VPXD_SET_DECRYPTOR support to the VP9 decoder.
cl-id I88f86c8ff9af34e0b6531028b691921b54c2fc48
where the buffer was read before validation check on index offset
applied.
A test vector is added accordingly.
Change-Id: I41c988e776bbdd1033312a668e03a3dbcf44ca99
This patch appears to have introduced non-determinism and/or
mismatch from debug vs release.
This reverts commit 5daef90efc.
Change-Id: I80081e55cfeaaa821b510b58a4e6e6328003c7da
The current decoding scheme will decrease the reference count
of the output frame when finish decoding. Then the application
could copy the frame from the decoder buffer to application buffer.
In frame-parallel decoding, a decoded frame will not be outputted
until several frames later which depends on thread numbers. So
the decoded frame's reference count should be decreased only
after application finish copying the frame out. But due to the
limitation of vpx_codec_get_frame, decoder could not know when
application finish decoding. So use a index last_show_frame to
release the last output frame's reference count.
Change-Id: I403ee0d01148ac1182e5a2d87cf7dcc302b51e63
This commit enables a fast path computational flow for forward
transformation. It checks the sse and variance of prediction
residuals and decides if the quantized coefficients are all
zero, dc only, or more. It then selects the corresponding coding
path in the forward transformation and quantization stage.
It is currently enabled in rtc coding mode. Will do it for rd
coding mode next.
In speed -6, the runtime for pedestrian_area 1080p at 1000 kbps
goes down from 14234 ms to 13704 ms, i.e., about 4% speed-up.
Overall coding performance for rtc set is changed by -0.18%.
Change-Id: I0452da1786d59bc8bcbe0a35fdae9f623d1d44e1
Scott LaVarnway
Tom Finegan
Marco Paniconi
Jingning Han
James Zern
Dmitry Kovalev
Alex Converse
unknown
hkuang
Yunqing Wang
Paul Wilkins
Johann
Tim Kopp