Commit graph

466 commits

Author SHA1 Message Date
Ari Lemmetti ec2f4e0bac Use double for RD costs in most places 2021-12-02 20:00:15 +02:00
Marko Viitanen 57883369ca Change all the license texts in source headers and LICENSE file to 3-clause BSD, closes #302
* All now have the same exact text string
2021-10-13 15:22:46 +03:00
Ari Lemmetti f31dddc019 Bypass inverse quantization and inverse transform when trying early skip 2020-04-10 16:02:09 +03:00
Jaakko Laitinen 45ca8f8113 Merge branch 'master' into 'extended_pu-depths' 2020-03-25 15:11:08 +02:00
Jaakko Laitinen fe428dcbe1 Fix no gop functionality 2020-03-18 11:03:33 +02:00
Jaakko Laitinen af3d559d8d Let pu-depth be defined per gop-layer 2020-03-17 17:57:18 +02:00
Joose Sainio e90d3141a2 Merge branch 'master' into rc-intra 2020-02-05 11:06:56 +02:00
Ari Lemmetti 9a0236bb4e Add option 'zero-coeff-rdo' 2020-02-04 21:26:29 +02:00
RLamm 30d5df40c5 Custom headers for the distributed coding 2020-01-29 15:54:49 +02:00
Joose Sainio 50d410a316 re-enable static qp encoding and lambda rc 2019-11-19 13:45:58 +02:00
Joose Sainio 84615e406a fix compiler warnings 2019-09-27 14:20:08 +03:00
Joose Sainio 14b7a75713 Call the new functions and fix bugs 2019-09-27 14:14:24 +03:00
mercat 2bca507abe Clean version of machine learning constraint code. (ICIP paper) 2019-09-11 16:12:06 +03:00
Alexandre Mercat 0f4b7be6ee First version of ML ICIP code for master 2019-09-11 16:12:06 +03:00
Ari Lemmetti 557bcbc6aa Make luma or chroma only inter "recon" or predict possible 2019-09-02 17:15:28 +03:00
Ari Lemmetti 4967072625 Do not bypass search on skip cu if early_skip is not enabled 2019-07-09 20:20:12 +03:00
Ari Lemmetti b20992a9f3 Rename functions more descriptive 2019-07-09 20:20:11 +03:00
Ari Lemmetti 4097331fd6 Early skip 2019-07-09 15:59:31 +03:00
Eemeli Kallio 284e73839e Calculating zero cost moved to its own function 2018-10-16 11:02:01 +03:00
Arttu Ylä-Outinen c438bb4a19 Add an option to skip CABAC for residual costs
Adds command line option --fast-residual-cost=<limit>. When QP is below
the limit, estimates the cost of coding the residual coefficients from
the sum of absolute coefficients. Skipping CABAC is not worth it with
high QPs because there are fewer coefficients so CABAC is not as slow.
2018-07-16 12:31:20 +03:00
Arttu Ylä-Outinen a343f6d587 Prepare for delta QPs at CU-level
- Replaces lcu_dqp_enabled with max_qp_delta_depth in encoder_control_t.
- Fixes set_cu_qps so that it can handle quantization groups of
  arbitrary size.
- Fixes computation of QP predictors so that it works for quantization
  groups of arbitrary size.
2018-06-13 15:36:19 +03:00
Arttu Ylä-Outinen 8c53417006 Check zero coefficient cost for inter
Checks the cost of flushing all coefficients of an inter block to zero.
This is much faster than doing full RDOQ but can still reduce bitrate
significantly. Encoding speed is increased since fewer coefficient bits
have to be coded with CABAC.
2018-01-29 12:41:56 +02:00
Arttu Ylä-Outinen 018b5ffa64 Move inter CU reconstruction to a new function
Moves code for reconstructing all PUs in an inter CU to a new function
kvz_inter_recon_cu in inter.c.
2018-01-24 15:05:39 +02:00
Arttu Ylä-Outinen 9067aa4535 Remove an unnecessary copy in SMP/AMP search
SMP/AMP search is performed using a lower work tree level than the
normal inter search so the prediction info must be copied up if an
SMP/AMP mode is chosen. Previously pixels and coefficient were copied as
well. Changed to only copy prediction info.
2018-01-18 10:36:26 +02:00
Arttu Ylä-Outinen 89a930d6dd Add part mode bitcost when using SMP/AMP blocks 2018-01-18 10:36:26 +02:00
Arttu Ylä-Outinen fc43643ba5 Use a transform split for SMP and AMP blocks 2018-01-18 10:36:25 +02:00
Arttu Ylä-Outinen 649113a821 Fix inter search being used for 4x4 blocks
When 4x4 intra blocks are enabled and inter search is limited to 16x16
and larger blocks, it is possible that inter search is accidentally done
for 4x4 blocks. Fixed by checking that block size is at least 8x8 before
doing inter search.
2018-01-10 14:21:48 +02:00
Ari Lemmetti 14892fda00 Replace simple coefficient cost estimation with CABAC. Substantial improvement.
Approximation proved to be too inaccurate while not giving actually that much speedup.
2017-12-10 01:23:48 +02:00
Miika Metsoila 7b0101ce3d Merge branch 'reflist_changes'
# Conflicts:
#	src/encoderstate.c
#	src/search_inter.c
2017-09-18 14:59:37 +03:00
Arttu Ylä-Outinen bc47fe94af Drop thread queue debug code 2017-08-11 14:18:12 +03:00
Arttu Ylä-Outinen f0bf959d17 Fix alignment errors in 32-bit build with MSVC
Changes the work_tree parameter in search.c functions from an array to
a pointer. Fixes "formal parameter with requested alignment of 8 won't
be aligned" errors.
2017-07-28 09:27:02 +03:00
Arttu Ylä-Outinen d50ae6990c Add sum of absolute coefficients to strategies 2017-07-28 07:39:15 +03:00
Arttu Ylä-Outinen 59faca0646 Skip CABAC coefficient cost for --rd=0 2017-07-28 07:33:03 +03:00
Arttu Ylä-Outinen 19e051ea40 Reduce intra threshold
Reduces intra threshold for --rd=0 from 20 to 8. Threshold of 20
increased BD-Rate too much.
2017-07-25 13:26:38 +03:00
Arttu Ylä-Outinen 6ce2fb1238 Add pixel offsets to encoder_state_config_tile_t
Adds fields offset_x and offset_y to encoder_state_config_tile_t.
2017-07-24 15:11:05 +03:00
Miika Metsoila f8b6234fdb Changes to refence lists to behave more like L0/L1 lists from the specification 2017-06-27 16:05:15 +03:00
Arttu Ylä-Outinen 8dd01ba5a9 Refactor helper functions in search
Combines functions lcu_set_intra_mode and lcu_set_inter_pu to a single
function. Removes some duplicated code.
2017-06-06 10:32:09 +03:00
Arttu Ylä-Outinen 1bbecf7584 Refactor work tree copy functions
Extracts common code shared by work_tree_copy_up and work_tree_copy_down
to a separate function.
2017-06-06 10:32:00 +03:00
Arttu Ylä-Outinen 8b2483ca1c Combine intra reconstruction functions
Replaces function kvz_intra_recon_lcu_luma and
kvz_intra_recon_lcu_chroma in intra.c with function kvz_intra_recon_cu.
The new function can handle reconstruction for both luma and chroma.
Removes some duplicated code.
2017-05-24 12:07:31 +03:00
Arttu Ylä-Outinen 95775a1645 Change coefficient storage order
Changes coefficient storage order to a zig-zag order. Reduces
unnecessary copying of coefficients to temporary arrays.
2017-05-12 16:46:57 +03:00
Arttu Ylä-Outinen 9395867a9a Quantize all colors in a single traversal
Changes kvz_quantize_lcu_residual to process all three colors in
a single traversal of the TU tree.
2017-05-12 16:42:41 +03:00
Arttu Ylä-Outinen cc87e0dcc7 Combine luma and chroma quantization functions
Replaces functions kvz_quantize_lcu_luma_residual and
kvz_quantize_lcu_chroma_residual in transform.c with function
kvz_quantize_lcu_residual. The new function can handle any of the YUV
colors. Removes some duplicated code.
2017-05-12 16:42:41 +03:00
Arttu Ylä-Outinen 1357dd0599 Pass coeffs through encoder state
Changes the way coefficients are passed from kvz_search_lcu to
kvz_encode_coding_tree. Drops fields coeff_y, coeff_u and coeff_v in
videoframe_t and instead passes them through field coeff in
endoder_state_t.
2017-05-12 16:42:41 +03:00
Arttu Ylä-Outinen 2f2405dfe6 Fix crash when PU depth is limited
When video width or height was not a multiple of the smallest CU size,
no prediction would be performed at the border CUs. Kvazaar would later
crash at an assertion failure when attempting to write the bitstream for
the CU.

Fixed by permitting inter and intra prediction when the CU split is
forced, even if CUs of that size would otherwise be disabled.
2017-04-27 10:35:48 +03:00
Arttu Ylä-Outinen 51786eda67 Drop redundant fields in encoder_control_t
Some of the fields in encoder_control_t were simply copies of the
corresponding fields in kvz_config. This commit drops the copied fields
in favor of using the fields in encoder_control_t.cfg directly.
2017-02-09 14:05:28 +09:00
Arttu Ylä-Outinen e78a8dfcf5 Copy the kvz_config passed to encoder_open
The kvz_config struct is created by the user but kvazaar keeps a pointer
to it. It is easy to break things by modifying the configuration outside
kvazaar. In addition, kvazaar modifies the struct even though it is has
a const modifier.

This commit changes the field cfg in encoder_control_t to be a copy of
the kvz_config struct instead of a pointer, removing modifications to
the const struct and allowing users to do whatever they want with it
after opening the encoder.
2017-02-09 13:23:54 +09:00
Ari Lemmetti 2c069a3e5f Prevent unnecessary cu search
Prevent further analysis as soon as it is known that splitting can not improve cost
2017-01-30 16:21:41 +02:00
Arttu Ylä-Outinen 4f56b04239 Drop an unnecessary conditional
Drop a conditional for depth > MAX_DEPTH in search_cu. The depth cannot
be greater than MAX_DEPTH (== 3) since an earlier if-clause checks that
it is less than MAX_PU_DEPTH (== 4).
2017-01-28 21:35:27 +09:00
Arttu Ylä-Outinen ff5e5ec6d4 Record info about coded LCUs
Adds field lcu_stats to encoder_state_config_frame_t. The following data
is recorded for each LCU:
    - number of bits
    - squared cost
    - used lambda value
    - alpha parameter used for rate control
    - beta parameter used for rate control
2017-01-09 01:24:23 +09:00
Arttu Ylä-Outinen 640ff94ecd Use separate lambda and QP for each LCU
Adds fields lambda, lambda_sqrt and qp to encoder_state_t. Drops field
cur_lambda_cost_sqrt from encoder_state_config_frame_t and renames
cur_lambda_cost to lambda.
2017-01-09 01:24:23 +09:00