3dfa708b6e
* Loudness leveling support for encoder and decoder
- Addition of loudness leveling support to encoder and
decoder as per ISO/IEC 23003-4:2020/Amd.2:2023(E)
Testing:
Encoder: Smoke-test
Decoder: CTS and Conformance for x86, x86_64, armv7 and armv8 are
passing
* Addressed review comments
* Addressed minor nits in documentation
---------
Co-authored-by: Akshay Ragir <100833@ittiam.com>
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2.1 KiB
Text
79 lines
No EOL
2.1 KiB
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#In order to support DRC AMD-2(ISO/IEC 23003-4:2020/Amd. 2:2023(E)), `leveling_present` and `ducking_only_set` fields are introduced in DRC config file.
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#For a given DRC effect, when both `leveling_present` and `ducking_only_set` are set to 1, automatically the next drc instruction is treated as ducking only set.
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#For example, if the second DRC effect is marked as 2048/4096 with `leveling_present` is set to 1 and `ducking_only_set` is set to 1, then the third DRC effect will be treated as ducking-only.
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#For the last drc instruction, `leveling_present` and `ducking_only_set` fields are ignored and reset to 0. Maximum supported instructions are 8.
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#####str_drc_instructions_uni_drc#####
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drc_instructions_uni_drc_count:0
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#####str_drc_coefficients_uni_drc#####
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drc_coefficients_uni_drc_count:0
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#####str_downmix_instructions_v1#####
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downmix_instructions_v1_count:1
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#n=0
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target_layout:1
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#s=0
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downmix_coeff:0.70794578438
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#end downmix coeeficients
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#####str_drc_coefficients_uni_drc_v1#####
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drc_coefficients_uni_drc_count_v1:1
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#n=0
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gain_set_count:1
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#s=0
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band_count:1
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#gain parameters m=0
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nb_points:3
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x:-60.0
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y:-40.0
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x:-30.0
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y:-30.0
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x:0.0
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y:-20.0
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width:0.01
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attack:2.0
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decay:5.0
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#end gain parameters
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#####str_drc_instructions_uni_drc_v1#####
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drc_instructions_uni_drc_count_v1:3
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#n=0
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downmix_id:0
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drc_set_effect:0x0001
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gain_set_channels:8
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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num_drc_channel_groups:1
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#n=1
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downmix_id:0
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drc_set_effect:0x800
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gain_set_channels:8
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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num_drc_channel_groups:1
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#leveling present flag
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leveling_present:1
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#if ducking_only_set is one next drc instruction's set effect is set to 0x800 (ducking/leveling self)
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ducking_only_set:1
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#n=2
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downmix_id:0
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drc_set_effect:0x0800
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gain_set_channels:8
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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gain_set_index:0
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num_drc_channel_groups:1 |