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While encoding a frame, its last frame source can be used to give
acurate motion information. This patch prevents last frame to be
overwritten so that it is available during current frame encoding.
The last source is scaled when it is necessary. cpi->Last_Source
points to the last source frame.
Change-Id: I0e1ef5e9e1d2badf9d0c7a1a44a7ed5b24c09425
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Change-Id: Ia319bd924401677b5c30b0f46d1ab2be6a1f446e
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Change-Id: I5c942ee1a04eb0d7f2ae7ba8ea8ce47e666550c5
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Includes a few fixes and clean-ups that adds the ability
to use alt-ref frames in one-pass mode.
Whether alt-refs are actually used or not is controlled by a
macro USE_ALTREF_FOR_ONE_PASS in vp9_firstpass.c.
This first cut seems to improve derf by 15+% in 1-pass mode.
But further experiments with parameters are underway.
Change-Id: I78254421435478003367c788c7930d2dc4ee2816
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Encoder's boarder is still 160, while decoder's boarder will be 32.
With on demand and separate boarder buffer for boarder extension.
The decoder's boarder does not need to to 160 anymore.
Change-Id: I93d5aaff15a33a2213e9761eaa37c5f2870747db
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Since they used in encoder only. This commit also re-order includes
for the files that include vp9_extend.h
Change-Id: I929fc113f2135d3198cd1fc6a17434e5a2f8a459
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Change-Id: I2a98995f0df77d99dc47bda5e41886f014d8843f
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Removing unused and duplicated constants, moving them from *.h to *.c
if possible.
Change-Id: Ief4d6b984a3ca2e9b38504f0d855ed072cf7133f
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This is a mostly-working implementation of an extra channel in the
bitstream. Configure with --enable-alpha to test. Notable TODOs:
- Add extra channel to all mismatch tests, PSNR, SSIM, etc
- Configurable subsampling
- Variable number of planes (currently always uses all 4)
- Loop filtering
- Per-plane lossless quantizer
- ARNR support
This implementation just uses the same contents as the Y channel
for the A channel, due to lack of content and general pain in
playing back 4 channel content. A later patch will use the actual
alpha channel passed in from outside the codec.
Change-Id: Ibf81f023b1c570bd84b3064e9b4b8ae52e087592
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Make framebuffer allocations according to the chroma subsamping
factors in use. A bit is placed in the raw part of the frame header for
each of the two subsampling factors. This will be moved in a future
commit to make them part of the TBD feature set bits, probably only set
on keyframes, etc.
Change-Id: I59ed38d3a3c0d4af3c7c277617de28d04a001853
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Updates the YV12_BUFFER_CONFIG structure to be crop-aware. The
exiting width/height parameters are left unchanged, storing the
width and height algined to a 16 byte boundary. The cropped
dimensions are added as new fields.
This fixes a nasty visual pulse when switching between scaled and
unscaled frame dimensions due to a mismatch between the scaling
ratio and the 16-byte aligned sizes.
Change-Id: Id4a3f6aea6b9b9ae38bdfa1b87b7eb2cfcdd57b6
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Removing redundant code, introducing new functions for better
decomposition, adding 'clamp' function to vp9_common.h.
Change-Id: Ic3b8ca13bbc38f60f0c9c43910b5802005e31aaf
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Change-Id: If8be8b9d28a29631f29c46daea8a226ab3580610
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Change-Id: Ia1cce221f8511561b9cbd8edb7726fbc286ff243
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Support for gyp which doesn't support multiple objects in the same
static library having the same basename.
Change-Id: Ib947eefbaf68f8b177a796d23f875ccdfa6bc9dc
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