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Автор SHA1 Сообщение Дата
Yushin Cho 77bba8d30a New experiment: Perceptual Vector Quantization from Daala
PVQ replaces the scalar quantizer and coefficient coding with a new
design originally developed in Daala. It currently depends on the
Daala entropy coder although it could be adapted to work with another
entropy coder if needed:
./configure --enable-experimental --enable-daala_ec --enable-pvq

The version of PVQ in this commit is adapted from the following
revision of Daala:
fb51c1ade6

More information about PVQ:
- https://people.xiph.org/~jm/daala/pvq_demo/
- https://jmvalin.ca/papers/spie_pvq.pdf

The following files are copied as-is from Daala with minimal
adaptations, therefore we disable clang-format on those files
to make it easier to synchronize the AV1 and Daala codebases in the future:
 av1/common/generic_code.c
 av1/common/generic_code.h
 av1/common/laplace_tables.c
 av1/common/partition.c
 av1/common/partition.h
 av1/common/pvq.c
 av1/common/pvq.h
 av1/common/state.c
 av1/common/state.h
 av1/common/zigzag.h
 av1/common/zigzag16.c
 av1/common/zigzag32.c
 av1/common/zigzag4.c
 av1/common/zigzag64.c
 av1/common/zigzag8.c
 av1/decoder/decint.h
 av1/decoder/generic_decoder.c
 av1/decoder/laplace_decoder.c
 av1/decoder/pvq_decoder.c
 av1/decoder/pvq_decoder.h
 av1/encoder/daala_compat_enc.c
 av1/encoder/encint.h
 av1/encoder/generic_encoder.c
 av1/encoder/laplace_encoder.c
 av1/encoder/pvq_encoder.c
 av1/encoder/pvq_encoder.h

Known issues:
- Lossless mode is not supported, '--lossless=1' will give the same result as
'--end-usage=q --cq-level=1'.
- High bit depth is not supported by PVQ.

Change-Id: I1ae0d6517b87f4c1ccea944b2e12dc906979f25e
2016-11-06 22:18:01 -08:00
Nathan E. Egge 19698a7084 Fix warning when discarding const qualifier.
Cherry-pick Daala 211c2a41: Clean up EC tell() and tell_frac() functions.
Add a const qualifier to the od_ec_enc and od_ec_dec parameters of
 the od_ec_enc_tell(), od_ec_enc_tell_frac(), od_ec_dec_tell(), and
 od_ec_dec_tell_frac() functions.
Add an OD_WARN_UNUSED_RESULT to od_ec_enc_tell_frac().

Change-Id: Ia50e2fd75e98d8a03d993449d658b695cf56e6fb
2016-10-17 12:16:27 -07:00
Yaowu Xu 931bc2a714 Clear existing format issue in the codebase
Fix the clang-format warnings on the existing codes.

Change-Id: I8e9e781b6f68f41a7fbd0a2116f6b35290d73dc8
2016-10-14 14:59:27 -07:00
Nathan E. Egge 1078dee569 Add Daala entropy coder.
Change-Id: I2849a50163268d58cc5d80aacfec1fd02299ca43
2016-10-14 14:59:27 -07:00