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2019-01-21lib/igt_audio: Initialize freq in audio_signal_detect()Petri Latvala
It's not clear to the static analyzer that freq is assigned when handling the previous frame and then used in the next. In fact, it wasn't clear to me either before staring at the code for some minutes. Initializing it to something makes both of us happier. Signed-off-by: Petri Latvala <petri.latvala@intel.com> Cc: Paul Kocialkowski <paul.kocialkowski@bootlin.com> Reviewed-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
2018-05-14lib/audio: Replace sqrt(a*a + b*b) with hypot(a, b)Chris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2017-09-08lib: clean up header includesDaniel Vetter
Just a bit of OCD, I like it when connections within library modules are a bit more obvious. igt.h is ok for tests, but let's use individual include lines for libraries consistently. Also order standard includes before igt ones. v2: Rebase. Acked-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com> Acked-by: Petri Latvala <petri.latvala@intel.com> Acked-by: Daniel Stone <daniels@collabora.com> Acked-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-08-21lib: Add audio library with dedicated helpersPaul Kocialkowski
This introduces an audio library, with dedicated helpers for both generating signals and detecting peak frequencies in a signal. This library paves the way for testing audio going through display connectors, such as HDMI. Signed-off-by: Paul Kocialkowski <paul.kocialkowski@linux.intel.com> Reviewed-by: Lyude Paul <lyude@redhat.com>