Although it degrades quality, this option is useful to avoid the 512k
limit for partition #0.
If not enough to reach the lower bound of 4bits per macroblock header,
one should also limit the number of segments used (down to -segments 1)
See the man file for extra details.
Change-Id: Ia59ffac13176c85b809ddd6340d37b54ee9487ea
was missing from the RD-computation of intra-4x4 score.
Doesn't change anything significantly, it's just More Correct.
Change-Id: I25c5b53a810d97e6fb7f98c549fd23bbe55e1bf4
with assertions enabled the code would abort in
WebPWorkerChangeState with:
Assertion `worker->status_ >= OK'
without them the code would hang in the _cond_wait.
this change makes WebPWorkerChangeState a no-op in this case.
Change-Id: Iea855568bbdef2865ae61ab54473b3a7c230e91a
Remove the bulk of xcopys from the TARGET rule as things are built to
the correct location.
Allow the clean rule to be appended and only delete DLLINC for dll
builds to avoid prompting by erase when it's undefined.
Change-Id: If88b2c68090099777b8be9f3a5fbde2c25ed66a6
To be enabled with the flag WEBP_USE_THREAD.
For now it's only available on unix (pthread), when using Makefile.unix
Will be switched on more generally later.
In-loop filtering and output (=rescaling/yuv->rgb conversion)
is done in parallel to bitstream decoding, lagging 1 row behind.
Example:
examples/dwebp bryce.webp -v
Time to decode picture: 0.680s
examples/dwebp bryce.webp -v -mt
Time to decode picture: 0.515s
Change-Id: Ic30a897423137a3bdace9c4e30465ef758fe53f2
(release|debug)-dynamic
These configurations will produce a dll in bin/ and an import lib under
lib/.
Currently the -noasm switch in the examples will be disabled for these
builds due to a dependency on VP8EncGetCPUInfo.
Change-Id: I2cbac0064f0e500698d14ffc03200791ca837090
Add WEBP_EXTERN(type) macro which should make Windows DLL builds simpler
by allowing the signature to be changed.
Change-Id: I0cfa45dff779985680b1a38ddff30973a0d26639
RGB565 and ARGB4444 are only supported through the advanced decoding API.
ARGB being somewhat generic, there's an easy WebPDecodeARGB()
new function for convenience.
Patch by Vikas Arora (vikaas dot arora at gmail dot com)
Change-Id: Ic7b6f72bd70aca458d14e7fdd23679212430ebca
Rather than add bulk to test for the new flag, simply comment out -Wvla
to keep the base makefile simple.
-Wvla was added in gcc-4.3.0.
Change-Id: I21feb456d7498ea628defb436a50c3d828e7f971
~5-10% faster.
Heavy 8bit arithmetic trickery!
Patch by Somnath Banerjee (somnath at google dot com)
Change-Id: I9fd2c511d9f631e9cf4b008c46127b49fb527b47
