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[RFC] audio: Add DC Blocking Filter Component #2462

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Merged
lgirdwood merged 5 commits into from
Mar 26, 2020
Merged

[RFC] audio: Add DC Blocking Filter Component #2462

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30dbd98
sof: dcblock: Add DC Blocking Filter Component
sebcarlucci Mar 11, 2020
15fe9f6
tools: tune: Add tools to generate bytes control
sebcarlucci Mar 11, 2020
1074c11
tools: test: Add DC Block test case to tplg-build
sebcarlucci Mar 16, 2020
04c2465
sof: configs: Default DCB to n for cht and byt
sebcarlucci Mar 18, 2020
ada5748
tools: testbench: Include dcblock in testbench
sebcarlucci Mar 17, 2020
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1 change: 1 addition & 0 deletions src/arch/xtensa/configs/baytrail_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ CONFIG_COMP_SEL=n
CONFIG_COMP_MUX=n
CONFIG_COMP_FIR=n
CONFIG_COMP_IIR=n
CONFIG_COMP_DCBLOCK=n
CONFIG_COMP_ASRC=n
CONFIG_OPTIMIZE_FOR_SIZE=y
CONFIG_HAVE_AGENT=n
1 change: 1 addition & 0 deletions src/arch/xtensa/configs/baytrail_gcc_defconfig
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Expand Up @@ -5,5 +5,6 @@ CONFIG_COMP_SEL=n
CONFIG_COMP_MUX=n
CONFIG_COMP_FIR=n
CONFIG_COMP_IIR=n
CONFIG_COMP_DCBLOCK=n
CONFIG_COMP_ASRC=n
CONFIG_HAVE_AGENT=n
1 change: 1 addition & 0 deletions src/arch/xtensa/configs/cherrytrail_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ CONFIG_COMP_SEL=n
CONFIG_COMP_MUX=n
CONFIG_COMP_FIR=n
CONFIG_COMP_IIR=n
CONFIG_COMP_DCBLOCK=n
CONFIG_COMP_ASRC=n
CONFIG_OPTIMIZE_FOR_SIZE=y
CONFIG_HAVE_AGENT=n
1 change: 1 addition & 0 deletions src/arch/xtensa/configs/cherrytrail_gcc_defconfig
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Original file line number Diff line number Diff line change
Expand Up @@ -5,5 +5,6 @@ CONFIG_COMP_SEL=n
CONFIG_COMP_MUX=n
CONFIG_COMP_FIR=n
CONFIG_COMP_IIR=n
CONFIG_COMP_DCBLOCK=n
CONFIG_COMP_ASRC=n
CONFIG_HAVE_AGENT=n
6 changes: 5 additions & 1 deletion src/audio/CMakeLists.txt
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Expand Up @@ -21,6 +21,9 @@ if(NOT BUILD_LIBRARY)
if(CONFIG_COMP_IIR)
add_subdirectory(eq_iir)
endif()
if(CONFIG_COMP_DCBLOCK)
add_subdirectory(dcblock)
endif()
if(CONFIG_COMP_TONE)
add_local_sources(sof
tone.c
Expand Down Expand Up @@ -104,14 +107,15 @@ check_optimization(fma -mfma -DOPS_FMA)
check_optimization(hifi2ep -mhifi2ep -DOPS_HIFI2EP)
check_optimization(hifi3 -mhifi3 -DOPS_HIFI3)

set(sof_audio_modules volume src asrc eq-fir eq-iir)
set(sof_audio_modules volume src asrc eq-fir eq-iir dcblock)

# sources for each module
set(volume_sources volume/volume.c volume/volume_generic.c)
set(src_sources src/src.c src/src_generic.c)
set(asrc_sources asrc/asrc.c asrc/asrc_farrow.c asrc/asrc_farrow_generic.c)
set(eq-fir_sources eq_fir/eq_fir.c eq_fir/fir.c)
set(eq-iir_sources eq_iir/eq_iir.c eq_iir/iir.c eq_iir/iir_generic.c)
set(dcblock_sources dcblock/dcblock.c dcblock/dcblock_generic.c)

foreach(audio_module ${sof_audio_modules})
# first compile with no optimizations
Expand Down
7 changes: 7 additions & 0 deletions src/audio/Kconfig
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Expand Up @@ -73,6 +73,13 @@ config COMP_SEL
help
Select for SEL component

config COMP_DCBLOCK
bool "DC Blocking Filter component"
default y
help
Select for DC Blocking Filter component. This component filters out
the DC offset which often originates from a microphone's output.

config COMP_TEST_KEYPHRASE
bool "KEYPHRASE_TEST component"
default y
Expand Down
2 changes: 2 additions & 0 deletions src/audio/dcblock/CMakeLists.txt
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@@ -0,0 +1,2 @@
add_local_sources(sof dcblock.c)
add_local_sources(sof dcblock_generic.c)
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