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67 commits

Author SHA1 Message Date
Ari Koivula d7383ccb25 Change license to LGPL. 
- Everyone who has contributed code to the project has been asked to license
  their contributions under LPGL and they have agreed.

- COPYING file changed to say LGPLv2.1 instead of GPLv2.

- GPL changed to LGPL in the header of every single file that a header and
  header added to the few that were missing one.

- Also.. Happy new year!
 2015-02-25 15:19:05 +02:00
Ari Koivula 5fa6438b25 Clean up calls to memset. 
- Replaces all calls to memset with new FILL and FILL_ARRAY macros. The use
  of memset was inconsistent and we never use it for anything complicated.
 2015-02-19 16:25:28 +02:00
Ari Koivula 4e052d3f0f Wrap contexts of cabac_data inside cabac_data.ctx struct. 2014-09-24 01:02:37 +03:00
Ari Koivula bfa399c8fc Fix compiler warnings. 
- Non-parenthesized parameter in a macro.
- Unused variables.
- Wrong const qualifiers.
- Signed/unsigned comparison.
 2014-09-22 10:04:57 +03:00
Marko Viitanen 6f65a9cbbd Improved SAO merge decisions 2014-09-16 10:08:17 +03:00
Marko Viitanen 21df11ba4e Implemented SAO search for both chroma components 2014-09-15 16:07:31 +03:00
Marko Viitanen e8d1140a1a Check SAO band offset for both chroma components and better SAO chroma cabac costs 2014-09-15 16:07:31 +03:00
Marko Viitanen 0c92031e8a SAO merge checking cleanup 2014-09-15 16:07:31 +03:00
Marko Viitanen b274e7adcd Added cabac bit cost calculations to SAO search 2014-09-15 16:07:31 +03:00
Laurent Fasnacht da07b8b35d No-copy works (SAO and deblocking enabled) 2014-06-12 11:47:38 +02:00
Laurent Fasnacht 6b408b5904 No-copy works with --no-sao --no-deblock 2014-06-12 11:47:30 +02:00
Laurent Fasnacht b1347efef5 Add checkpoint in sao_reconstruct 2014-06-12 11:47:29 +02:00
Laurent Fasnacht ae4dc4eb44 Fix uninitialized sao_info structure members, which was creating false positive when checkpointing SAO 2014-06-12 11:47:29 +02:00
Laurent Fasnacht 27a49d287d Big refactor to use videoframe, image_list, and image instead of picture* 2014-06-10 09:19:06 +02:00
Laurent Fasnacht 3b38777b71 Fix condition depending on uninitialized value in SAO 2014-05-21 16:33:24 +02:00
Laurent Fasnacht 43b5f84c0d Fix sao_calc_edge_block_dims 
It was computing wrong dimensions, which was causing out-of-bounds reads in sao_reconstruct.
 2014-05-09 10:30:34 +02:00
Laurent Fasnacht 4dbf7c7a52 Fix blit dimensions in sao_search_best_mode 2014-05-09 08:24:02 +02:00
Laurent Fasnacht 6c6adf18c7 Refactor encoder_state 2014-05-07 11:47:31 +02:00
Laurent Fasnacht 5fea5875a5 Huge refactoring 
Split some parts of encoder_control into encoder_state
(idea: encoder_control is immutable)

Goal is to allow multiple substreams in the future.
 2014-04-22 10:39:12 +02:00
Laurent Fasnacht 3396264f3c Moved g_cur_lambda_cost into encoder_control.cur_lambda_cost 2014-04-17 12:00:21 +02:00
Laurent Fasnacht 4a9c239027 Remove g_bitdepth 2014-04-17 11:13:13 +02:00
Laurent Fasnacht 7a2b883059 Remove encoder_input width, height, height_in_lcu, and width_in_lcu 2014-04-17 11:13:12 +02:00
Laurent Fasnacht 9ac3b7bf2b encoder->in.cur_pic --> cur_pic 2014-04-17 11:13:10 +02:00
Ari Koivula 9229e5d11b Fix undefined behavior of EO_IDX. 
- Move the whole eo_cat thing to it's own function.

- Casting pixel values to int should solve issues with SIGN3. Not casting them
  was detected as undefined behavior by CLANG. Probably because the result of
  two unsigned might be treated as unsigned (but isn't on VS2010).
 2014-04-16 14:50:19 +03:00
Ari Koivula 051484f8d8 Remove unused old mode cost estimation from SAO. 2014-04-16 11:19:23 +03:00
Ari Koivula 33b9594fec Take into account the coding cost of not using SAO. 2014-04-15 21:32:24 +03:00
Ari Koivula 880d09b27a Add sao_type_idx to SAO mode cost estimation. 2014-04-15 21:29:09 +03:00
Ari Koivula 280a946269 Apply bit cost fixes to edge band band sao search. 
- Increases bdrate slightly. It's still a cleaner solution though and further
  improvements to bit cost estimation might improve things.
 2014-04-15 21:28:16 +03:00
Ari Koivula c968253eb3 Estimate SAO merge coding costs better. 
- This doesn't seem to have very much of an effect. I guess the difference
  between 1 and 2 bits isn't that important.
 2014-04-15 21:27:16 +03:00
Ari Koivula ef7840c623 Add SAO coding costs for sao_eo_class, band position and offset sign. 
- This reduces bdrate a little bit.

- It seems like increasing the bit cost of using SAO in general
  increases bdrate.
 2014-04-15 21:24:44 +03:00
Ari Koivula 9ff32c566c Adjust SAO mode coding cost for zero offsets. 
- Coding zero with TR only takes one bit.

- Even though offset 0 should be fairly common, this doesn't seem to help very
  much and actually increases bdrate on some sequences.
 2014-04-15 21:21:31 +03:00
Ari Koivula 67a3d5542c Add better delta distortion calculation to sao. 2014-04-15 21:17:29 +03:00
Ari Koivula 8c4796e56e Calculate edge and band sao separately. 2014-04-15 21:16:55 +03:00
Ari Koivula 1017c6639c Move band and edge sao to their own functions. 2014-04-15 21:14:59 +03:00
Laurent Fasnacht 9f3aeed6be Fix pixel access in sao 2014-04-14 15:40:06 +02:00
Laurent Fasnacht 78c579053a encoder_control should be const in nearly all the code 2014-04-14 10:56:06 +02:00
Ari Koivula d44d1837bb Remove unreferenced parameters. 
- Working towards issue #11.
 2014-04-04 12:56:24 +03:00
Ari Koivula 953aef0379 Move rest of LCU encoding inside the LCU loop. 
- Move SAO search inside the LCU loop.

- Move CU coding inside the LCU loop.

- Move SAO frame reconstruction loop to sao module.
 2014-03-21 12:41:44 +02:00
Ari Koivula db4402e8d6 Fix for SAO band offset merge cost calculation. 
Gives a tiny improvement to both bit rate and psnr.
 2014-02-22 16:08:39 +02:00
Marko Viitanen 34f558ddd7 Fixed SAO cost checking, disabling SAO when RD-cost is 0 
Decreases overall BD-rate a bit more, this fix prevents coding zero offsets to the bitstream
 2014-02-21 17:43:15 +02:00
Luca Barbato d07e12dbf0 sao: Add correct header 
abs is part of stdlib.h
 2014-02-21 15:07:56 +01:00
Luca Barbato ba494e19c5 sao: Constantize *_list 2014-02-21 15:07:15 +01:00
Luca Barbato 8fbb26975e sao: Drop unused variable 2014-02-21 15:07:15 +01:00
Luca Barbato f314c9b8c0 sao: Staticize 2014-02-21 15:07:11 +01:00
Luca Barbato 934a4e3b88 whitespace: Drop trailing spaces 2014-02-21 15:03:35 +01:00
Marko Viitanen e3a528df2e Added rate cost to SAO mode selection calculations 
Decreased BD-rate 1% on LP configuration with 600 frames of BQMall, QP 22,27,32,37
Merge check is now performed in a function to ease the checking
 2014-02-21 15:54:56 +02:00
Marko Viitanen f1f293ae0c Implemented SAO merging 2014-02-21 13:20:54 +02:00
Marko Viitanen 13dc95a164 Implemented band SAO reconstruction 2014-02-21 11:52:41 +02:00
Marko Viitanen e4880aa4b7 Fixed SAO bitstream generation and band offset a bit 2014-02-20 17:22:33 +02:00
Marko Viitanen 5d946c774a Implemented draft SAO band offset functions 2014-02-20 16:08:09 +02:00