Commit Graph

16 Commits

Author SHA1 Message Date
Paul Wilkins
0ba32632cd ARNR Lookup Table.
Change submitted for Adrian Grange. Convert threshold
calculation in ARNR filter to a lookup table.

Change-Id: I12a4bbb96b9ce6231ce2a6ecc2d295610d49e7ec
2010-07-19 14:46:42 +01:00
Paul Wilkins
bf18069ceb Rate control fix for ARNR filtered frames.
Previously we had assumed that it was necessary to give a full frame's
bit allocation to the alt ref frame if it has been created through temporal
filtering. This is not the case. The active max quantizer control
insures that sufficient bits are allocated if needed and allocating a
full frame's worth of bits creates an excessive overhead for the ARF.

Change-Id: I83c95ed7bc7ce0e53ccae6ff32db5a97f145937a
2010-07-19 14:10:07 +01:00
Paul Wilkins
7c938f4d3c Fix: Incorrect 'cols' calculation in temporal filter.
Change-Id: I37f10fbe4fbb505c1d34980a59af3e817c287e22
2010-07-16 15:57:17 +01:00
Adrian Grange
aa8fe0d269 Fixed buffer selection for UV in AltRef filtering
Corrected setting of "which_buffer" for U & V cases to match that
used for Y, i.e. to refer to the temporally most recent frame of
those to be filtered.

Change-Id: Idf94b287ef47a05f060da3e61134a0b616adcb6b
2010-06-28 16:45:06 +01:00
Yaowu Xu
d0dd01b8ce Redo the forward 4x4 dct
The new fdct lowers the round trip sum squared error for a
4x4 block ~0.12. or ~0.008/pixel. For reference, the old
matrix multiply version has average round trip error 1.46
for a 4x4 block.

Thanks to "derf" for his suggestions and references.

Change-Id: I5559d1e81d333b319404ab16b336b739f87afc79
2010-06-24 13:17:58 -07:00
agrange
a08df4552a Fix breakout thresh computation for golden & AltRef frames
1. Unavailability of each reference frame type should be tested
independently,
2. Also, only the VP8_GOLD_FLAG needs to be tested before setting
golden frame specific thresholds, and only VP8_ALT_FLAG needs
testing before setting thresholds relevant to the AltRef frame.
(Raised by gbvalor, in response to Issue 47)

Change-Id: I6a06fc2a6592841d85422bc1661e33349bb6c3b8
2010-06-21 16:50:59 +01:00
agrange
daa5d0eb3d Changed unary operator from ! to ~
Since the intent is
to reset the appropriate bit in ref_frame_flags not to
test a logic condition. Prior result would always have
been ref_frame_flags being set to 0.
(Issue reported by dgohman, issue 47)

Change-Id: I2c12502ed74c73cf38e98c9680e0249c29e16433
2010-06-21 15:23:51 +01:00
John Koleszar
94c52e4da8 cosmetics: trim trailing whitespace
When the license headers were updated, they accidentally contained
trailing whitespace, so unfortunately we have to touch all the files
again.

Change-Id: I236c05fade06589e417179c0444cb39b09e4200d
2010-06-18 13:06:11 -04:00
Guillermo Ballester Valor
5a72620de9 Fix compiler warnings
Change-Id: I2a97f08cc3c7808ce5be39e910cc5147ecf03a1d
2010-06-14 17:23:49 -04:00
Yaowu Xu
3225b893e8 minor cleanup of quantizer and fdct code
Change-Id: I7ccc580410bea096a70dce0cc3d455348d4287c5
2010-06-08 15:13:50 -07:00
Yaowu Xu
854c007a77 Remove duplicate and unused functions
Change-Id: I944035e720ef834561a9da0d723879a4f787312c
2010-06-07 07:41:07 -07:00
John Koleszar
09202d8071 LICENSE: update with latest text
Change-Id: Ieebea089095d9073b3a94932791099f614ce120c
2010-06-04 16:19:40 -04:00
Yaowu Xu
a7bb3360bc Fix stats format and correct data size and bit rate output
Change-ID: I093abe6094589a0d73f6ca85b825678a19e68285
2010-05-27 19:56:18 -07:00
Yaowu Xu
c15652bce1 Fixed an encoder debug/relese mismatch in x86_64-win64-vs8
Visual c++ compiler uses xmm registers for floating point
operations for 64 bit architecture, therefore its calling
convention requires the preservation of xmm6-xmm15 in any
function that have used these registers. However, the sse2
functions, that were originally written for 32 bit windows,
may have used xmm6 and xmm7 without preserving the content.
In this particular case, the compiler used xmm6 to save
the variable "two_pass_min_rate", the value of the variable
is mucked up by our sse2 optimized loop filter functions,
hence the results of release/debug mismatching.
2010-05-19 15:48:00 -07:00
Pavol Rusnak
0fc9abfbfd remove unneeded variables 2010-05-19 21:15:32 +02:00
John Koleszar
0ea50ce9cb Initial WebM release 2010-05-18 11:58:33 -04:00