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Change-Id: I7125984ec28a7094195b640d6659590c6eead533
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Change-Id: I42a86b0488f44115f09551fc5ad6d711fd470f0d
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This code fixes a bug in the calculation of
the minimum Q for alt ref frames.
It also allows an extended gf/arf interval for sections
of clips that completely static (or nearly so).
Change-Id: I1a21aaa16d4f0578e5f99b13bebd78d59403c73b
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Remove allocation/deallocation of stats storage.
Remove full search functions in machine specific encoder inits.
Remove last pass validation in validate_config.
Change-Id: I7f29be69273981a4fef6e80ecdb6217c68cbad4e
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Change-Id: I3e51945a61446e1ee70caaf97ff7cf0c740bf1da
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The CQ level was not using the q_trans[] array to convert
to a 0-127 range as per min and maxq
Experimental change to try and match the reconstruction
error for forced key frames approximately to that of the
previous frame by means of the recode loop. Though this
may cause extra recodes and the recode behavior has not
been optimized, it can only happen on forced key frames.
Change-Id: I1f7e42d526f1b1cb556dd461eff1a692bd1b5b2f
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Change-Id: Id03b5485239fdb2a5e2351a3393eeed847a6e641
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Previously when a frame was being overlaid on a previously coded
alt ref frame we only checked the alt ref 0,0 mode. Where there is
a possibility that the alt ref buffer is a filtered frame we should allow
the other prediction modes as normal or at the least allow use of
the last frame buffer.
Change-Id: I4d6227223d125c96b4f3066ec6ec9484fee7768c
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In cases where the frame width is not a multiple of 16 the
ARNR filter would go wrong.
In vp8_temporal_filter_iterate_c when updating pointers
at the end of a row of MBs, the image size was
incorrectly used rather than using Num_MBs_In_Row
times 16 (Y) or 8 (U,V).
This worked when width is multiple of 16 but failed
otherwise.
Change-Id: I008919062715bd3d17c7aa2562ab58d1cb37053a
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Allow use of other reference frames for the ARF overlay frame
when ARNR filtering is enabled
Change-Id: Icd6a9fb38977a88fbe7cc9b9c18198eb454c0273
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This change is designed to try and reduce pulsing effects when moving
with a complex transition like a fade, into an easy or static section in
an otherwise difficult clip in CQ mode.
The active CQ level is relaxed down to the user entered level for frames that
are generating less than the passed in minimum bandwidth.
Change-Id: Id6d8b551daad4f489c087bd742bc95418a95f3f0
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Change-Id: I229048ab797a4087437c265e6bb96db5c32e7b3d
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Fixed discrepancy cpi->ni_frames vs cm->current_video_frame > 150.
Make one pass path explicit.
There is still scope for some odd behaviour around the transition
point at cpi->ni_frames > 150.
Change-Id: Icdee130fe6e2a832206d30e45bf65963edd7a74d
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Change-Id: I0859ddc498ff2d8f75fc4d2bc37127eb6188e231
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Where a key frame occurs because of a minimum interval
selected by the user, then these forced key frames ideally need
to be more closely matched in quality to the surrounding frame.
Change-Id: Ia55b1f047e77dc7fbd78379c45869554f25b3df7
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Change-Id: Id5da32e6d58a58e04a4dff9ca1df23ebb6c436b8
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Moved ref frame calculations to outside of the
mode_index loop.
Change-Id: I06103fc7e8af88b54b84443acf6691d29b1272ac
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source buffer is not guaranteed to be aligned for odd size buffers
Change-Id: Id0b1fd40ba3bd6c994bcfada788feccd2b53c5a9
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Add a flag to always enable block4x4 search for speed=0 (good
quality) to guarantee no quality loss for speed0.
Change-Id: Ie04bbc25f7e6a33a7bfa30e05775d33148731c81
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Removing unused local variables causing compiler warnings in
Visual Studio.
Change-Id: I0e2096303be1fdbc01428a6e57cca9796bb32c8a
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Change-Id: I0ecbf2f417540d75435542182a661f5f6bb84ac0
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The maximum possible MV in 1/8 pel units is (1<<11), which could
cause mvcost out of its range that is 1023. Change maximum
possible MV in 1/8 pel units to (1<<11)-8 will fix this problem.
Change-Id: I5788ed1de773f66658c14f225fb4ab5b1679b74b
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Further experiment with restriction of the Q range.
This uses the average non KF/GF/ARF quantizer, instead
of just relying on the initial value. It is not such a strong constraint
but there may be a reduced risk of rate misses.
Change-Id: I424fe782a37a2f4e18c70805e240db55bfaa25ec
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Constant value reverted pending more tests
on different video formats.
Change-Id: I07d11a0e0185e60724698c835416caf2e0774e61
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Change-Id: Ib34bc09a295141eb65c8c0478bde6136f178909b
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The merge includes hooks to for CQ mode and other code
changes merged from the test branch.
CQ mode attempts to maintain a more stable quantizer within a clip
whilst also trying to adhere to a guidline maximum bitrate.
The existing target data rate parameter is used to specify the
guideline maximum bitrate.
A new parameter allows the user to specify a target CQ level.
For normal (non kf/gf/arf) frames, the quantizer will not drop BELOW the
user specified value (0-63). However, in some cases the encoder may
choose to impose a target CQ that is above that specified by the user,
if it estimates that consistent use of the target value is not compatible
with guideline maximum bitrate.
Change-Id: I2221f9eecae8cc3c431d36caf83503941b25e4c1
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In two pass encoding each frame is given an active
Q range to work with. This change limits how much this
Q range can be altered over time from the initial estimate
made for the clip as a whole.
There is some danger this could lead to overshoot or undershoot
in some corner cases but it helps considerably in regard to
clips where either there is a glut or famine of bits in some sections,
particularly near the end of a clip.
Change-Id: I34fcd1af31d2ee3d5444f93e334645254043026e
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cpi->target_bits_per_mb is currently not being used,
so delete it. Also removed other unused code in rdopt.c.
Change-Id: I98449f9030bcd2f15451d9b7a3b9b93dd1409923
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Change-Id: I733a72f6f46c7ea048b3d1732e5abbc697651229
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count can be reduced to short because the max number of filtered frames
is set to 15. the max value for any frame is 32 (modifier = 16,
filter_weight = 2). 15*32 = 480 which requires 9 bits
this function goes from about 7000 us / 1000 iterations for the C code
to < 275 us / 1000 iterations for sse2 for block_size = 16 and from
about 1800 us / 1000 iters to < 100 us / 1000 iters for block_size = 8
Change-Id: I64a32607f58a2d33c39286f468b04ccd457d9e6e
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Commit 0ce3901 introduced a change in the frame buffer copy logic where
the NEW frame could be copied to the ARF or GF buffer through the
copy_buffer_to_{arf,gf}==1 flags, if the LAST frame was not being
refreshed. This is not correct. The intent of the
copy_buffer_to_{arf,gf}==1 flag is to copy the LAST buffer. To copy the
NEW buffer, the refresh_{alt_ref,golden}_frame flag should be used.
The original buffer copy logic is fairly convoluted. For example:
if (cm->refresh_last_frame)
{
vp8_swap_yv12_buffer(&cm->last_frame, &cm->new_frame);
cm->frame_to_show = &cm->last_frame;
}
else
{
cm->frame_to_show = &cm->new_frame;
}
...
if (cm->copy_buffer_to_arf)
{
if (cm->copy_buffer_to_arf == 1)
{
if (cm->refresh_last_frame)
vp8_yv12_copy_frame_ptr(&cm->new_frame, &cm->alt_ref_frame);
else
vp8_yv12_copy_frame_ptr(&cm->last_frame, &cm->alt_ref_frame);
}
else if (cm->copy_buffer_to_arf == 2)
vp8_yv12_copy_frame_ptr(&cm->golden_frame, &cm->alt_ref_frame);
}
Effectively, if refresh_last_frame, then new and last are swapped, so
when "new" is copied to ARF, it's equivalent to copying LAST to ARF. If
not refresh_last_frame, then LAST is copied to ARF. So LAST is copied to
ARF in both cases.
Commit 0ce3901 removed the first buffer swap but kept the
refresh_last_frame?new:last behavior, changing the sense since the first
swap wasn't done to the more readable refresh_last_frame?last:new, but
this logic is not correct when !refresh_last_frame.
This commit restores the correct behavior from v0.9.1 and prior. This
case is missing from the test vector set.
Change-Id: I8369fc13a37ae882e31a8a104da808a08bc8428f
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The following features don't make sense for the first
pass in its current form and have a significant impact on its
speed (up to 50%).
Slow quantizer, slow dct and trellis optimization.
Change-Id: Id9943f6765ffbd71fc0084ec7dfbc9d376fd6fcd
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Change-Id: Ib7a1fdc49f9db6ebbd6a43ca139f842d9a260c5d
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Calculate a minimum intra value to be used in determining the
IIratio scores used in two pass, second pass.
This is to make sure sections that are low complexity" in the
intra domain are still boosted appropriately for KF/GF/ARF.
For now I have commented out the Q based adjustment of
KF boost.
Change-Id: I15deb09c5bd9b53180a2ddd3e5f575b2aba244b3
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Change-Id: Iedf38035a53aa772b947ae39e44e1da473d916ac
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Happens in real-time mode. Will happen in good quality, speed 1.
Change-Id: I3e5b68827b1a5798d0431b088a709256d1ce2c95
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Scott pointed out that last_frame_type only gets updated while
loopfilter exists. Since last_frame_type is also needed in
motion search now, it needs to be updated every frame.
Change-Id: I9203532fd67361588d4024628d9ddb8e391ad912
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Change-Id: Ib599ea0443526714d3c43b876cbfea732faba112
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