3 Commits

Author	SHA1	Message	Date
Konsta	dcad73115c	audio: hook refine position to alsa stream ... * Fixes audio syncronization during video playback. * Account start_threshold as device specific latency for ALSA HDMI and tinyalsa [1] (3.5mm jack, DAC & USB) output. * Remove unneeded pcm call to query buffer size. [1]: https://android.googlesource.com/platform/external/tinyalsa_new/+/refs/tags/android-16.0.0_r1/include/tinyalsa/pcm.h#214	2025-11-06 13:10:29 +02:00
Konsta	688b88189e	audio: probe pcm card from property ... * Valid values for the audio device property are 'jack', 'hdmi0', 'hdmi1', and 'dac'. * If 'jack' is selected, first PCM card with name 'Headphones' is used. If 'dac' is selected, first PCM card that doesn't match the name for 3.5mm or HDMI devices is used. HDMI audio uses virtual ALSA devices instead of using tinyalsa to open a PCM card directly. * Allow forcing specific PCM card for debugging/development purposes. * PCM card numbers are different between Pi 4 and Pi 5 and order can change depending on the DAC driver that's enabled. Pi 4: console:/ # cat /proc/asound/cards 0 [Headphones ]: bcm2835_headpho - bcm2835 Headphones bcm2835 Headphones 1 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0 vc4-hdmi-0 2 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1 vc4-hdmi-1 Pi 5 with DAC: console:/ # cat /proc/asound/cards 0 [vc4hdmi0 ]: vc4-hdmi - vc4-hdmi-0 vc4-hdmi-0 1 [vc4hdmi1 ]: vc4-hdmi - vc4-hdmi-1 vc4-hdmi-1 2 [sndrpihifiberry]: HifiberryDacp - snd_rpi_hifiberry_dacplus snd_rpi_hifiberry_dacplus	2025-11-06 13:10:19 +02:00
Konsta	7d6df38051	audio: import aidl hal ... * hardware/interfaces/audio/aidl/default/ at android-16.0.0_r1.	2025-11-06 13:07:51 +02:00