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Steven Dan
2025-12-11 09:43:42 +08:00
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lib_audio_dsp/doc/rst/images/complex_pipelines/7_chan_biquad_pipeline.svg Normal file
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lib_audio_dsp/doc/rst/images/complex_pipelines/complex_pipeline_gen.py Normal file
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# Copyright 2024-2025 XMOS LIMITED.
# This Software is subject to the terms of the XMOS Public Licence: Version 1.
"""Generate complex pipeline diagrams for documentation."""
from audio_dsp.design.pipeline import Pipeline
from audio_dsp.stages import Biquad, Fork, Bypass
# NOTE: The :width: in the .rst is set to {.png_width}/100 for consistent scaling,
# but the svg images are used
if __name__ == "__main__":
file_ext = "png"
# start with 7 input channels
p, inputs = Pipeline.begin(7, fs=48000)
# pass the first 2 inputs to a 2-channel Biquad
i0 = p.stage(Biquad, inputs[0:2])
# pass the third input (index 2) to a 1-channel biquad
i1 = p.stage(Biquad, inputs[2])
# pass the inputs at index 3, 5, and 6 to a 3 channel biquad
i2 = p.stage(Biquad, inputs[3, 5, 6])
# pass all of i0 and i1, as well as the first channel in i2
# to create a 4 channel biquad
i3 = p.stage(Biquad, i0 + i1 + i2[0])
# The pipeline output has 6 channels:
# - all four i3 channels
# - the 2nd and 3rd channel from i2
p.set_outputs(i3 + i2[1:])
p.draw(f"doc/rst/images/complex_pipelines/7_chan_biquad_pipeline.{file_ext}")
#%%
p, inputs = Pipeline.begin(1, fs=48000)
# fork the input to create a 2 channel signal
x = p.stage(Fork, inputs, count=2)
# fork again to create a 4 channel signal
x = p.stage(Fork, x, count=2)
# there are now 4 channels in the pipeline output
p.set_outputs(x)
p.draw(f"doc/rst/images/complex_pipelines/fork_pipeline.{file_ext}")
#%%
p, i = Pipeline.begin(1, fs=48000)
# thread 0
i = p.stage(Biquad, i)
# thread 1
p.next_thread()
i = p.stage(Biquad, i)
# thread 2
p.next_thread()
i = p.stage(Biquad, i)
p.set_outputs(i)
p.draw(f"doc/rst/images/complex_pipelines/multi_thread_pipeline.{file_ext}")
#%%
p, inputs = Pipeline.begin(2, fs=48000)
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p.set_outputs(x)
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