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The Story of PulseAudio and Compress Offload
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lca2020
--room room_7 15214 --force
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Author(s):
Arun Raghavan
Location
Room 7
Date
jan Wed 15
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Start
16:40
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0:45:0
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17:25
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https://lca2020.linux.org.au/schedule/presentation/14/
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While PulseAudio has been a standard component in desktop and embedded Linux for a decade now, it was always written with uncompressed audio data in mind. To save power. modern SoCs often support "compress offload", where an efficient DSP can receive compressed MP3/AAC/... data, decode and render it to be played out. In this talk, I'll describe how this was implemented in PulseAudio, what challenges and tradeoffs were involved, and what the future might hold for this work.
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