Implement reading the roi-matrix for each frame from binary file. Extremely simple and breaks on any unhappy paths.
# Conflicts:
# src/cfg.c
# src/cli.c
# src/encoder.c
# src/image.c
# src/rate_control.c
TODO: write into encoder->fastrd_learning_outfile instead of stdout.
It's a toughie tho, because fwrite takes in FILE* instead of const FILE*
but the encoder_control_t is passed as a const.
- 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.
Changes thread queue so that only the jobs that are ready to run are
stored in the queue. Other jobs are kept track of by pointers in the
reverse dependency lists of other jobs. When a job is ready to run it is
appended to the queue. The job queue is stored as a linked list.
The definitions of threadqueue_queue_t and threadqueue_job_t are moved
to the .c file, turning them into opaque structs.
Makes thread queue code simpler. Fixes some TSan errors.
Changes OWF selection so that it is chosen based on the maximum number
of parallel CTUs. Number of threads is limited to prevent overhead from
extra threads.
Adds field max_inter_ref_lcu to encoder_control_t. It is used to set up
inter-LCU dependencies in encoder_state_encode_leaf and restrict motion
vectors in fracmv_within_tile.
Sets max_transform_hierarchy_depth_inter to 0 in SPS. This saves some
bits because split_transform_flag does not need to be coded for inter
blocks.
When SMP and AMP blocks are enabled the depth is set to 1 instead.
Otherwise inter split flag would default to 1 for SMP and AMP blocks,
resulting in an unnecessary transform split.
Adds option --erp-aqp for enabling adaptive QP for 360 degree video with
equirectangular projection. When projected into a spherical surface,
the middle part of the video covers relatively larger area than the top
and bottom parts. Enabling --erp-aqp sets up a ROI delta QP array which
uses higher QPs for the top and bottom of the video and lower QPs for
the middle part.
Delta QPs for LCUs are enabled when either ROI coding or rate control is
enabled. Having a single field is simpler than always checking whether
ROI or rate control is enabled.
