ALSA Topology Framework - Configurable DSP Processing for Linux Audio Systems

Explore the ALSA Topology Framework in this 46-minute conference talk by Vinod Koul from Intel. Dive into the challenges of configuring modern audio systems with DSPs and learn how the ASoC topology framework addresses these issues. Discover how to represent DSP processing chains as graphs/topologies and load them from userland during boot, enabling customizable Linux audio systems. Examine the framework's implementation in Intel's Skylake chipset audio drivers. Gain insights into topics such as mixer controls, byte controls, enumerated controls, DAPM widgets, DAPM graphs, private data, building configurations, topology APIs, binary formats, and future developments. Understand the background of the speaker, Vinod Koul, an Intel Linux Audio group member and maintainer of the Linux dmaengine subsystem.

Intro
HISTORY
WHY TOPOLOGY
SYSTEM VIEW - KERNEL
TOPOLOGY CONE
MIXER CONTROL
BYTE CONTROL
ENUMERATED CONTROL
DAPM WIDGET
DAPM GRAPH
PRIVATE DATA
BUILDING CONF
TOPOLOGY CAPIS
BINARY FORMAT
TOPOLOGY CORE
MANIFEST
FUTURE WORK