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Change-Id: Ic606ef1b31e49963a779455a1e010a9ebb0f3f1f
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This reverts commit c2574414d432c7d040f3b2b05f23a109a801ea69
Change-Id: Ie9013cb0bb43e639e01b4588f630b1da59295d38
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Change-Id: Ic22f416a33de558519d5c30a929f6a954546ade9
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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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Change-Id: I8b2687138df636b2b78c8cc5156e3882b0009de0
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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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Adding multiple16 function, removing redundant code, better formatting.
Change-Id: I50195b78ac8ab803e3d05c8fb05a7ca134fab386
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This is like VP8_COPY_REFERENCE, but returns a pointer to the reference
frame rather than a copy of it. This is useful when the application
doesn't know what the size of the reference is, as is the case when
scaling is in effect.
Change-Id: I63667109f65510364d0e397ebe56217140772085
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