Hi, I was looking at using the PA passthrough support (and adding support for TrueHD, DTS-HD), but it seems there is another issue that has to be resolved first: Pulseaudio passthrough (with ALSA) does not currently work unless a stereo profile is in use. If a HDMI surround profile is in use, the device seems to be permanently in a 6 channel mode. As passthrough of e.g. 48kHz AC-3/DTS requires the device to opened in 2 channel 48kHz mode, pa_sink_input_new() will always fail with "Could not update sink sample spec to match passthrough stream". How should this be solved? (also, TrueHD and DTS-HD MA will require a 768kHz IEC 60958 frame rate, which in ALSA is 8 channel 192kHz) BTW, shouldn't/couldn't the sink channel count be auto-selected from EDID in case of HDMI instead of having to select profiles? -- Anssi Hannula
