mirror of https://github.com/jetkvm/kvm.git
db2dc88250
Query TC358743 HDMI receiver for detected audio sample rate before initializing ALSA capture device. This fixes distortion issues when HDMI sources send 44.1kHz audio (e.g., Armbian SBC) instead of 48kHz. Previously, the code always requested 48kHz from ALSA, but in I2S slave mode, the RV1106 I2S controller receives whatever clock rate the TC358743 master provides. This caused a sample rate mismatch where ALSA thought it was 48kHz but hardware was actually running at 44.1kHz, resulting in incorrect SpeexDSP resampling and audio distortion. Changes: - Add V4L2 ioctl to query TC358743's audio_sampling_rate control - Use detected rate when configuring ALSA (falls back to 48kHz if unavailable) - SpeexDSP resampler now gets correct input rate (44.1k, 48k, etc.) - Supports all HDMI audio sample rates: 32k, 44.1k, 48k, 88.2k, 96k, etc. |
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| .. | ||
| audio.c | ||
| audio_common.c | ||
| audio_common.h | ||