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control: decode HDMI device name from ELD

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The HDMI drivers set an uniform PCM names. Use ELD (EDID) to obtain
the HDMI device name and send this string to applications for a better
user experience.

Example (aplay -l):

  card 1: PCH [HDA Intel PCH], device 8: HDMI 2 [HDMI 2]
    Subdevices: 1/1

  vs improved:

  card 1: PCH [HDA Intel PCH], device 8: HDMI 2 [Philips 272P4]
    Subdevices: 1/1

Fixes: https://github.com/alsa-project/alsa-lib/issues/209
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit is contained in:
Jaroslav Kysela 2022-05-05 14:28:41 +02:00
parent 9c0c757b85
commit 859448f010
5 changed files with 111 additions and 1 deletions
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2
src/control/Makefile.am
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@ -1,6 +1,6 @@
EXTRA_LTLIBRARIES = libcontrol.la
libcontrol_la_SOURCES = cards.c tlv.c namehint.c hcontrol.c \
libcontrol_la_SOURCES = cards.c tlv.c eld.c namehint.c hcontrol.c \
control.c control_hw.c control_empty.c \
setup.c ctlparse.c \
control_plugin.c control_symbols.c